diff options
| author | Timothy Pearson <tpearson@raptorengineering.com> | 2019-05-11 15:12:49 -0500 |
|---|---|---|
| committer | Timothy Pearson <tpearson@raptorengineering.com> | 2019-05-11 15:12:49 -0500 |
| commit | 9e80202352dd49bdd9e67b8b906d86f058431505 (patch) | |
| tree | 5673c17aad6e3833da8c4ff21b5a11f666ec9fbe /src/target-xtensa | |
| download | hqemu-master.zip hqemu-master.tar.gz | |
Diffstat (limited to 'src/target-xtensa')
| -rw-r--r-- | src/target-xtensa/Makefile.objs | 7 | ||||
| -rw-r--r-- | src/target-xtensa/core-dc232b.c | 49 | ||||
| -rw-r--r-- | src/target-xtensa/core-dc232b/core-isa.h | 423 | ||||
| -rw-r--r-- | src/target-xtensa/core-dc232b/gdb-config.c | 261 | ||||
| -rw-r--r-- | src/target-xtensa/core-dc233c.c | 50 | ||||
| -rw-r--r-- | src/target-xtensa/core-dc233c/core-isa.h | 474 | ||||
| -rw-r--r-- | src/target-xtensa/core-dc233c/gdb-config.c | 145 | ||||
| -rw-r--r-- | src/target-xtensa/core-fsf.c | 48 | ||||
| -rw-r--r-- | src/target-xtensa/core-fsf/core-isa.h | 361 | ||||
| -rw-r--r-- | src/target-xtensa/cpu-qom.h | 99 | ||||
| -rw-r--r-- | src/target-xtensa/cpu.c | 182 | ||||
| -rw-r--r-- | src/target-xtensa/cpu.h | 555 | ||||
| -rw-r--r-- | src/target-xtensa/gdbstub.c | 126 | ||||
| -rw-r--r-- | src/target-xtensa/helper.c | 729 | ||||
| -rw-r--r-- | src/target-xtensa/helper.h | 58 | ||||
| -rwxr-xr-x | src/target-xtensa/import_core.sh | 51 | ||||
| -rw-r--r-- | src/target-xtensa/monitor.c | 34 | ||||
| -rw-r--r-- | src/target-xtensa/op_helper.c | 981 | ||||
| -rw-r--r-- | src/target-xtensa/overlay_tool.h | 602 | ||||
| -rw-r--r-- | src/target-xtensa/translate.c | 3216 | ||||
| -rw-r--r-- | src/target-xtensa/xtensa-semi.c | 321 |
21 files changed, 8772 insertions, 0 deletions
diff --git a/src/target-xtensa/Makefile.objs b/src/target-xtensa/Makefile.objs new file mode 100644 index 0000000..481de91 --- /dev/null +++ b/src/target-xtensa/Makefile.objs @@ -0,0 +1,7 @@ +obj-y += xtensa-semi.o +obj-y += core-dc232b.o +obj-y += core-dc233c.o +obj-y += core-fsf.o +obj-$(CONFIG_SOFTMMU) += monitor.o +obj-y += translate.o op_helper.o helper.o cpu.o +obj-y += gdbstub.o diff --git a/src/target-xtensa/core-dc232b.c b/src/target-xtensa/core-dc232b.c new file mode 100644 index 0000000..06826c0 --- /dev/null +++ b/src/target-xtensa/core-dc232b.c @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "cpu.h" +#include "exec/exec-all.h" +#include "exec/gdbstub.h" +#include "qemu/host-utils.h" + +#include "core-dc232b/core-isa.h" +#include "overlay_tool.h" + +static XtensaConfig dc232b __attribute__((unused)) = { + .name = "dc232b", + .gdb_regmap = { + .num_regs = 120, + .num_core_regs = 52, + .reg = { +#include "core-dc232b/gdb-config.c" + } + }, + .clock_freq_khz = 10000, + DEFAULT_SECTIONS +}; + +REGISTER_CORE(dc232b) diff --git a/src/target-xtensa/core-dc232b/core-isa.h b/src/target-xtensa/core-dc232b/core-isa.h new file mode 100644 index 0000000..69f1065 --- /dev/null +++ b/src/target-xtensa/core-dc232b/core-isa.h @@ -0,0 +1,423 @@ +/* + * Xtensa processor core configuration information. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (c) 1999-2007 Tensilica Inc. + */ + +#ifndef _XTENSA_CORE_CONFIGURATION_H +#define _XTENSA_CORE_CONFIGURATION_H + + +/**************************************************************************** + Parameters Useful for Any Code, USER or PRIVILEGED + ****************************************************************************/ + +/* + * Note: Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is + * configured, and a value of 0 otherwise. These macros are always defined. + */ + + +/*---------------------------------------------------------------------- + ISA + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_BE 0 /* big-endian byte ordering */ +#define XCHAL_HAVE_WINDOWED 1 /* windowed registers option */ +#define XCHAL_NUM_AREGS 32 /* num of physical addr regs */ +#define XCHAL_NUM_AREGS_LOG2 5 /* log2(XCHAL_NUM_AREGS) */ +#define XCHAL_MAX_INSTRUCTION_SIZE 3 /* max instr bytes (3..8) */ +#define XCHAL_HAVE_DEBUG 1 /* debug option */ +#define XCHAL_HAVE_DENSITY 1 /* 16-bit instructions */ +#define XCHAL_HAVE_LOOPS 1 /* zero-overhead loops */ +#define XCHAL_HAVE_NSA 1 /* NSA/NSAU instructions */ +#define XCHAL_HAVE_MINMAX 1 /* MIN/MAX instructions */ +#define XCHAL_HAVE_SEXT 1 /* SEXT instruction */ +#define XCHAL_HAVE_CLAMPS 1 /* CLAMPS instruction */ +#define XCHAL_HAVE_MUL16 1 /* MUL16S/MUL16U instructions */ +#define XCHAL_HAVE_MUL32 1 /* MULL instruction */ +#define XCHAL_HAVE_MUL32_HIGH 0 /* MULUH/MULSH instructions */ +#define XCHAL_HAVE_DIV32 1 /* QUOS/QUOU/REMS/REMU insns */ +#define XCHAL_HAVE_L32R 1 /* L32R instruction */ +#define XCHAL_HAVE_ABSOLUTE_LITERALS 1 /* non-PC-rel (extended) L32R */ +#define XCHAL_HAVE_CONST16 0 /* CONST16 instruction */ +#define XCHAL_HAVE_ADDX 1 /* ADDX#/SUBX# instructions */ +#define XCHAL_HAVE_WIDE_BRANCHES 0 /* B*.W18 or B*.W15 instr's */ +#define XCHAL_HAVE_PREDICTED_BRANCHES 0 /* B[EQ/EQZ/NE/NEZ]T instr's */ +#define XCHAL_HAVE_CALL4AND12 1 /* (obsolete option) */ +#define XCHAL_HAVE_ABS 1 /* ABS instruction */ +/*#define XCHAL_HAVE_POPC 0*/ /* POPC instruction */ +/*#define XCHAL_HAVE_CRC 0*/ /* CRC instruction */ +#define XCHAL_HAVE_RELEASE_SYNC 1 /* L32AI/S32RI instructions */ +#define XCHAL_HAVE_S32C1I 1 /* S32C1I instruction */ +#define XCHAL_HAVE_SPECULATION 0 /* speculation */ +#define XCHAL_HAVE_FULL_RESET 1 /* all regs/state reset */ +#define XCHAL_NUM_CONTEXTS 1 /* */ +#define XCHAL_NUM_MISC_REGS 2 /* num of scratch regs (0..4) */ +#define XCHAL_HAVE_TAP_MASTER 0 /* JTAG TAP control instr's */ +#define XCHAL_HAVE_PRID 1 /* processor ID register */ +#define XCHAL_HAVE_THREADPTR 1 /* THREADPTR register */ +#define XCHAL_HAVE_BOOLEANS 0 /* boolean registers */ +#define XCHAL_HAVE_CP 1 /* CPENABLE reg (coprocessor) */ +#define XCHAL_CP_MAXCFG 8 /* max allowed cp id plus one */ +#define XCHAL_HAVE_MAC16 1 /* MAC16 package */ +#define XCHAL_HAVE_VECTORFPU2005 0 /* vector floating-point pkg */ +#define XCHAL_HAVE_FP 0 /* floating point pkg */ +#define XCHAL_HAVE_VECTRA1 0 /* Vectra I pkg */ +#define XCHAL_HAVE_VECTRALX 0 /* Vectra LX pkg */ +#define XCHAL_HAVE_HIFI2 0 /* HiFi2 Audio Engine pkg */ + + +/*---------------------------------------------------------------------- + MISC + ----------------------------------------------------------------------*/ + +#define XCHAL_NUM_WRITEBUFFER_ENTRIES 8 /* size of write buffer */ +#define XCHAL_INST_FETCH_WIDTH 4 /* instr-fetch width in bytes */ +#define XCHAL_DATA_WIDTH 4 /* data width in bytes */ +/* In T1050, applies to selected core load and store instructions (see ISA): */ +#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* unaligned loads cause exc. */ +#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* unaligned stores cause exc.*/ + +#define XCHAL_SW_VERSION 701001 /* sw version of this header */ + +#define XCHAL_CORE_ID "dc232b" /* alphanum core name + (CoreID) set in the Xtensa + Processor Generator */ + +#define XCHAL_CORE_DESCRIPTION "Diamond 232L Standard Core Rev.B (LE)" +#define XCHAL_BUILD_UNIQUE_ID 0x0000BEEF /* 22-bit sw build ID */ + +/* + * These definitions describe the hardware targeted by this software. + */ +#define XCHAL_HW_CONFIGID0 0xC56307FE /* ConfigID hi 32 bits*/ +#define XCHAL_HW_CONFIGID1 0x0D40BEEF /* ConfigID lo 32 bits*/ +#define XCHAL_HW_VERSION_NAME "LX2.1.1" /* full version name */ +#define XCHAL_HW_VERSION_MAJOR 2210 /* major ver# of targeted hw */ +#define XCHAL_HW_VERSION_MINOR 1 /* minor ver# of targeted hw */ +#define XCHAL_HW_VERSION 221001 /* major*100+minor */ +#define XCHAL_HW_REL_LX2 1 +#define XCHAL_HW_REL_LX2_1 1 +#define XCHAL_HW_REL_LX2_1_1 1 +#define XCHAL_HW_CONFIGID_RELIABLE 1 +/* If software targets a *range* of hardware versions, these are the bounds: */ +#define XCHAL_HW_MIN_VERSION_MAJOR 2210 /* major v of earliest tgt hw */ +#define XCHAL_HW_MIN_VERSION_MINOR 1 /* minor v of earliest tgt hw */ +#define XCHAL_HW_MIN_VERSION 221001 /* earliest targeted hw */ +#define XCHAL_HW_MAX_VERSION_MAJOR 2210 /* major v of latest tgt hw */ +#define XCHAL_HW_MAX_VERSION_MINOR 1 /* minor v of latest tgt hw */ +#define XCHAL_HW_MAX_VERSION 221001 /* latest targeted hw */ + + +/*---------------------------------------------------------------------- + CACHE + ----------------------------------------------------------------------*/ + +#define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */ +#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */ +#define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */ +#define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */ + +#define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */ +#define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */ + +#define XCHAL_DCACHE_IS_WRITEBACK 1 /* writeback feature */ + + + + +/**************************************************************************** + Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code + ****************************************************************************/ + + +#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY + +/*---------------------------------------------------------------------- + CACHE + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_PIF 1 /* any outbound PIF present */ + +/* If present, cache size in bytes == (ways * 2^(linewidth + setwidth)). */ + +/* Number of cache sets in log2(lines per way): */ +#define XCHAL_ICACHE_SETWIDTH 7 +#define XCHAL_DCACHE_SETWIDTH 7 + +/* Cache set associativity (number of ways): */ +#define XCHAL_ICACHE_WAYS 4 +#define XCHAL_DCACHE_WAYS 4 + +/* Cache features: */ +#define XCHAL_ICACHE_LINE_LOCKABLE 1 +#define XCHAL_DCACHE_LINE_LOCKABLE 1 +#define XCHAL_ICACHE_ECC_PARITY 0 +#define XCHAL_DCACHE_ECC_PARITY 0 + +/* Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits): */ +#define XCHAL_CA_BITS 4 + + +/*---------------------------------------------------------------------- + INTERNAL I/D RAM/ROMs and XLMI + ----------------------------------------------------------------------*/ + +#define XCHAL_NUM_INSTROM 0 /* number of core instr. ROMs */ +#define XCHAL_NUM_INSTRAM 0 /* number of core instr. RAMs */ +#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs */ +#define XCHAL_NUM_DATARAM 0 /* number of core data RAMs */ +#define XCHAL_NUM_URAM 0 /* number of core unified RAMs*/ +#define XCHAL_NUM_XLMI 0 /* number of core XLMI ports */ + + +/*---------------------------------------------------------------------- + INTERRUPTS and TIMERS + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_INTERRUPTS 1 /* interrupt option */ +#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* med/high-pri. interrupts */ +#define XCHAL_HAVE_NMI 1 /* non-maskable interrupt */ +#define XCHAL_HAVE_CCOUNT 1 /* CCOUNT reg. (timer option) */ +#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */ +#define XCHAL_NUM_INTERRUPTS 22 /* number of interrupts */ +#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* ceil(log2(NUM_INTERRUPTS)) */ +#define XCHAL_NUM_EXTINTERRUPTS 17 /* num of external interrupts */ +#define XCHAL_NUM_INTLEVELS 6 /* number of interrupt levels + (not including level zero) */ +#define XCHAL_EXCM_LEVEL 3 /* level masked by PS.EXCM */ + /* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */ + +/* Masks of interrupts at each interrupt level: */ +#define XCHAL_INTLEVEL1_MASK 0x001F80FF +#define XCHAL_INTLEVEL2_MASK 0x00000100 +#define XCHAL_INTLEVEL3_MASK 0x00200E00 +#define XCHAL_INTLEVEL4_MASK 0x00001000 +#define XCHAL_INTLEVEL5_MASK 0x00002000 +#define XCHAL_INTLEVEL6_MASK 0x00000000 +#define XCHAL_INTLEVEL7_MASK 0x00004000 + +/* Masks of interrupts at each range 1..n of interrupt levels: */ +#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x001F80FF +#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x001F81FF +#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x003F8FFF +#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x003F9FFF +#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x003FBFFF +#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x003FBFFF +#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x003FFFFF + +/* Level of each interrupt: */ +#define XCHAL_INT0_LEVEL 1 +#define XCHAL_INT1_LEVEL 1 +#define XCHAL_INT2_LEVEL 1 +#define XCHAL_INT3_LEVEL 1 +#define XCHAL_INT4_LEVEL 1 +#define XCHAL_INT5_LEVEL 1 +#define XCHAL_INT6_LEVEL 1 +#define XCHAL_INT7_LEVEL 1 +#define XCHAL_INT8_LEVEL 2 +#define XCHAL_INT9_LEVEL 3 +#define XCHAL_INT10_LEVEL 3 +#define XCHAL_INT11_LEVEL 3 +#define XCHAL_INT12_LEVEL 4 +#define XCHAL_INT13_LEVEL 5 +#define XCHAL_INT14_LEVEL 7 +#define XCHAL_INT15_LEVEL 1 +#define XCHAL_INT16_LEVEL 1 +#define XCHAL_INT17_LEVEL 1 +#define XCHAL_INT18_LEVEL 1 +#define XCHAL_INT19_LEVEL 1 +#define XCHAL_INT20_LEVEL 1 +#define XCHAL_INT21_LEVEL 3 +#define XCHAL_DEBUGLEVEL 6 /* debug interrupt level */ +#define XCHAL_HAVE_DEBUG_EXTERN_INT 1 /* OCD external db interrupt */ +#define XCHAL_NMILEVEL 7 /* NMI "level" (for use with + EXCSAVE/EPS/EPC_n, RFI n) */ + +/* Type of each interrupt: */ +#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT6_TYPE XTHAL_INTTYPE_TIMER +#define XCHAL_INT7_TYPE XTHAL_INTTYPE_SOFTWARE +#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT10_TYPE XTHAL_INTTYPE_TIMER +#define XCHAL_INT11_TYPE XTHAL_INTTYPE_SOFTWARE +#define XCHAL_INT12_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT13_TYPE XTHAL_INTTYPE_TIMER +#define XCHAL_INT14_TYPE XTHAL_INTTYPE_NMI +#define XCHAL_INT15_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT16_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT17_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT18_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT19_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT20_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT21_TYPE XTHAL_INTTYPE_EXTERN_EDGE + +/* Masks of interrupts for each type of interrupt: */ +#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFC00000 +#define XCHAL_INTTYPE_MASK_SOFTWARE 0x00000880 +#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x003F8000 +#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000133F +#define XCHAL_INTTYPE_MASK_TIMER 0x00002440 +#define XCHAL_INTTYPE_MASK_NMI 0x00004000 +#define XCHAL_INTTYPE_MASK_WRITE_ERROR 0x00000000 + +/* Interrupt numbers assigned to specific interrupt sources: */ +#define XCHAL_TIMER0_INTERRUPT 6 /* CCOMPARE0 */ +#define XCHAL_TIMER1_INTERRUPT 10 /* CCOMPARE1 */ +#define XCHAL_TIMER2_INTERRUPT 13 /* CCOMPARE2 */ +#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED +#define XCHAL_NMI_INTERRUPT 14 /* non-maskable interrupt */ + +/* Interrupt numbers for levels at which only one interrupt is configured: */ +#define XCHAL_INTLEVEL2_NUM 8 +#define XCHAL_INTLEVEL4_NUM 12 +#define XCHAL_INTLEVEL5_NUM 13 +#define XCHAL_INTLEVEL7_NUM 14 +/* (There are many interrupts each at level(s) 1, 3.) */ + + +/* + * External interrupt vectors/levels. + * These macros describe how Xtensa processor interrupt numbers + * (as numbered internally, eg. in INTERRUPT and INTENABLE registers) + * map to external BInterrupt<n> pins, for those interrupts + * configured as external (level-triggered, edge-triggered, or NMI). + * See the Xtensa processor databook for more details. + */ + +/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */ +#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */ +#define XCHAL_EXTINT1_NUM 1 /* (intlevel 1) */ +#define XCHAL_EXTINT2_NUM 2 /* (intlevel 1) */ +#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */ +#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */ +#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */ +#define XCHAL_EXTINT6_NUM 8 /* (intlevel 2) */ +#define XCHAL_EXTINT7_NUM 9 /* (intlevel 3) */ +#define XCHAL_EXTINT8_NUM 12 /* (intlevel 4) */ +#define XCHAL_EXTINT9_NUM 14 /* (intlevel 7) */ +#define XCHAL_EXTINT10_NUM 15 /* (intlevel 1) */ +#define XCHAL_EXTINT11_NUM 16 /* (intlevel 1) */ +#define XCHAL_EXTINT12_NUM 17 /* (intlevel 1) */ +#define XCHAL_EXTINT13_NUM 18 /* (intlevel 1) */ +#define XCHAL_EXTINT14_NUM 19 /* (intlevel 1) */ +#define XCHAL_EXTINT15_NUM 20 /* (intlevel 1) */ +#define XCHAL_EXTINT16_NUM 21 /* (intlevel 3) */ + + +/*---------------------------------------------------------------------- + EXCEPTIONS and VECTORS + ----------------------------------------------------------------------*/ + +#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture + number: 1 == XEA1 (old) + 2 == XEA2 (new) + 0 == XEAX (extern) */ +#define XCHAL_HAVE_XEA1 0 /* Exception Architecture 1 */ +#define XCHAL_HAVE_XEA2 1 /* Exception Architecture 2 */ +#define XCHAL_HAVE_XEAX 0 /* External Exception Arch. */ +#define XCHAL_HAVE_EXCEPTIONS 1 /* exception option */ +#define XCHAL_HAVE_MEM_ECC_PARITY 0 /* local memory ECC/parity */ +#define XCHAL_HAVE_VECTOR_SELECT 1 /* relocatable vectors */ +#define XCHAL_HAVE_VECBASE 1 /* relocatable vectors */ +#define XCHAL_VECBASE_RESET_VADDR 0xD0000000 /* VECBASE reset value */ +#define XCHAL_VECBASE_RESET_PADDR 0x00000000 +#define XCHAL_RESET_VECBASE_OVERLAP 0 + +#define XCHAL_RESET_VECTOR0_VADDR 0xFE000000 +#define XCHAL_RESET_VECTOR0_PADDR 0xFE000000 +#define XCHAL_RESET_VECTOR1_VADDR 0xD8000500 +#define XCHAL_RESET_VECTOR1_PADDR 0x00000500 +#define XCHAL_RESET_VECTOR_VADDR 0xFE000000 +#define XCHAL_RESET_VECTOR_PADDR 0xFE000000 +#define XCHAL_USER_VECOFS 0x00000340 +#define XCHAL_USER_VECTOR_VADDR 0xD0000340 +#define XCHAL_USER_VECTOR_PADDR 0x00000340 +#define XCHAL_KERNEL_VECOFS 0x00000300 +#define XCHAL_KERNEL_VECTOR_VADDR 0xD0000300 +#define XCHAL_KERNEL_VECTOR_PADDR 0x00000300 +#define XCHAL_DOUBLEEXC_VECOFS 0x000003C0 +#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0xD00003C0 +#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x000003C0 +#define XCHAL_WINDOW_OF4_VECOFS 0x00000000 +#define XCHAL_WINDOW_UF4_VECOFS 0x00000040 +#define XCHAL_WINDOW_OF8_VECOFS 0x00000080 +#define XCHAL_WINDOW_UF8_VECOFS 0x000000C0 +#define XCHAL_WINDOW_OF12_VECOFS 0x00000100 +#define XCHAL_WINDOW_UF12_VECOFS 0x00000140 +#define XCHAL_WINDOW_VECTORS_VADDR 0xD0000000 +#define XCHAL_WINDOW_VECTORS_PADDR 0x00000000 +#define XCHAL_INTLEVEL2_VECOFS 0x00000180 +#define XCHAL_INTLEVEL2_VECTOR_VADDR 0xD0000180 +#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x00000180 +#define XCHAL_INTLEVEL3_VECOFS 0x000001C0 +#define XCHAL_INTLEVEL3_VECTOR_VADDR 0xD00001C0 +#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x000001C0 +#define XCHAL_INTLEVEL4_VECOFS 0x00000200 +#define XCHAL_INTLEVEL4_VECTOR_VADDR 0xD0000200 +#define XCHAL_INTLEVEL4_VECTOR_PADDR 0x00000200 +#define XCHAL_INTLEVEL5_VECOFS 0x00000240 +#define XCHAL_INTLEVEL5_VECTOR_VADDR 0xD0000240 +#define XCHAL_INTLEVEL5_VECTOR_PADDR 0x00000240 +#define XCHAL_INTLEVEL6_VECOFS 0x00000280 +#define XCHAL_INTLEVEL6_VECTOR_VADDR 0xD0000280 +#define XCHAL_INTLEVEL6_VECTOR_PADDR 0x00000280 +#define XCHAL_DEBUG_VECOFS XCHAL_INTLEVEL6_VECOFS +#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR +#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL6_VECTOR_PADDR +#define XCHAL_NMI_VECOFS 0x000002C0 +#define XCHAL_NMI_VECTOR_VADDR 0xD00002C0 +#define XCHAL_NMI_VECTOR_PADDR 0x000002C0 +#define XCHAL_INTLEVEL7_VECOFS XCHAL_NMI_VECOFS +#define XCHAL_INTLEVEL7_VECTOR_VADDR XCHAL_NMI_VECTOR_VADDR +#define XCHAL_INTLEVEL7_VECTOR_PADDR XCHAL_NMI_VECTOR_PADDR + + +/*---------------------------------------------------------------------- + DEBUG + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_OCD 1 /* OnChipDebug option */ +#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */ +#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */ +#define XCHAL_HAVE_OCD_DIR_ARRAY 1 /* faster OCD option */ + + +/*---------------------------------------------------------------------- + MMU + ----------------------------------------------------------------------*/ + +/* See core-matmap.h header file for more details. */ + +#define XCHAL_HAVE_TLBS 1 /* inverse of HAVE_CACHEATTR */ +#define XCHAL_HAVE_SPANNING_WAY 0 /* one way maps I+D 4GB vaddr */ +#define XCHAL_HAVE_IDENTITY_MAP 0 /* vaddr == paddr always */ +#define XCHAL_HAVE_CACHEATTR 0 /* CACHEATTR register present */ +#define XCHAL_HAVE_MIMIC_CACHEATTR 0 /* region protection */ +#define XCHAL_HAVE_XLT_CACHEATTR 0 /* region prot. w/translation */ +#define XCHAL_HAVE_PTP_MMU 1 /* full MMU (with page table + [autorefill] and protection) + usable for an MMU-based OS */ +/* If none of the above last 4 are set, it's a custom TLB configuration. */ +#define XCHAL_ITLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */ +#define XCHAL_DTLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */ + +#define XCHAL_MMU_ASID_BITS 8 /* number of bits in ASIDs */ +#define XCHAL_MMU_RINGS 4 /* number of rings (1..4) */ +#define XCHAL_MMU_RING_BITS 2 /* num of bits in RING field */ + +#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */ + + +#endif /* _XTENSA_CORE_CONFIGURATION_H */ diff --git a/src/target-xtensa/core-dc232b/gdb-config.c b/src/target-xtensa/core-dc232b/gdb-config.c new file mode 100644 index 0000000..13aba5e --- /dev/null +++ b/src/target-xtensa/core-dc232b/gdb-config.c @@ -0,0 +1,261 @@ +/* Configuration for the Xtensa architecture for GDB, the GNU debugger. + + Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. */ + + XTREG(0, 0, 32, 4, 4, 0x0020, 0x0006, -2, 9, 0x0100, pc, + 0, 0, 0, 0, 0, 0) + XTREG(1, 4, 32, 4, 4, 0x0100, 0x0006, -2, 1, 0x0002, ar0, + 0, 0, 0, 0, 0, 0) + XTREG(2, 8, 32, 4, 4, 0x0101, 0x0006, -2, 1, 0x0002, ar1, + 0, 0, 0, 0, 0, 0) + XTREG(3, 12, 32, 4, 4, 0x0102, 0x0006, -2, 1, 0x0002, ar2, + 0, 0, 0, 0, 0, 0) + XTREG(4, 16, 32, 4, 4, 0x0103, 0x0006, -2, 1, 0x0002, ar3, + 0, 0, 0, 0, 0, 0) + XTREG(5, 20, 32, 4, 4, 0x0104, 0x0006, -2, 1, 0x0002, ar4, + 0, 0, 0, 0, 0, 0) + XTREG(6, 24, 32, 4, 4, 0x0105, 0x0006, -2, 1, 0x0002, ar5, + 0, 0, 0, 0, 0, 0) + XTREG(7, 28, 32, 4, 4, 0x0106, 0x0006, -2, 1, 0x0002, ar6, + 0, 0, 0, 0, 0, 0) + XTREG(8, 32, 32, 4, 4, 0x0107, 0x0006, -2, 1, 0x0002, ar7, + 0, 0, 0, 0, 0, 0) + XTREG(9, 36, 32, 4, 4, 0x0108, 0x0006, -2, 1, 0x0002, ar8, + 0, 0, 0, 0, 0, 0) + XTREG(10, 40, 32, 4, 4, 0x0109, 0x0006, -2, 1, 0x0002, ar9, + 0, 0, 0, 0, 0, 0) + XTREG(11, 44, 32, 4, 4, 0x010a, 0x0006, -2, 1, 0x0002, ar10, + 0, 0, 0, 0, 0, 0) + XTREG(12, 48, 32, 4, 4, 0x010b, 0x0006, -2, 1, 0x0002, ar11, + 0, 0, 0, 0, 0, 0) + XTREG(13, 52, 32, 4, 4, 0x010c, 0x0006, -2, 1, 0x0002, ar12, + 0, 0, 0, 0, 0, 0) + XTREG(14, 56, 32, 4, 4, 0x010d, 0x0006, -2, 1, 0x0002, ar13, + 0, 0, 0, 0, 0, 0) + XTREG(15, 60, 32, 4, 4, 0x010e, 0x0006, -2, 1, 0x0002, ar14, + 0, 0, 0, 0, 0, 0) + XTREG(16, 64, 32, 4, 4, 0x010f, 0x0006, -2, 1, 0x0002, ar15, + 0, 0, 0, 0, 0, 0) + XTREG(17, 68, 32, 4, 4, 0x0110, 0x0006, -2, 1, 0x0002, ar16, + 0, 0, 0, 0, 0, 0) + XTREG(18, 72, 32, 4, 4, 0x0111, 0x0006, -2, 1, 0x0002, ar17, + 0, 0, 0, 0, 0, 0) + XTREG(19, 76, 32, 4, 4, 0x0112, 0x0006, -2, 1, 0x0002, ar18, + 0, 0, 0, 0, 0, 0) + XTREG(20, 80, 32, 4, 4, 0x0113, 0x0006, -2, 1, 0x0002, ar19, + 0, 0, 0, 0, 0, 0) + XTREG(21, 84, 32, 4, 4, 0x0114, 0x0006, -2, 1, 0x0002, ar20, + 0, 0, 0, 0, 0, 0) + XTREG(22, 88, 32, 4, 4, 0x0115, 0x0006, -2, 1, 0x0002, ar21, + 0, 0, 0, 0, 0, 0) + XTREG(23, 92, 32, 4, 4, 0x0116, 0x0006, -2, 1, 0x0002, ar22, + 0, 0, 0, 0, 0, 0) + XTREG(24, 96, 32, 4, 4, 0x0117, 0x0006, -2, 1, 0x0002, ar23, + 0, 0, 0, 0, 0, 0) + XTREG(25, 100, 32, 4, 4, 0x0118, 0x0006, -2, 1, 0x0002, ar24, + 0, 0, 0, 0, 0, 0) + XTREG(26, 104, 32, 4, 4, 0x0119, 0x0006, -2, 1, 0x0002, ar25, + 0, 0, 0, 0, 0, 0) + XTREG(27, 108, 32, 4, 4, 0x011a, 0x0006, -2, 1, 0x0002, ar26, + 0, 0, 0, 0, 0, 0) + XTREG(28, 112, 32, 4, 4, 0x011b, 0x0006, -2, 1, 0x0002, ar27, + 0, 0, 0, 0, 0, 0) + XTREG(29, 116, 32, 4, 4, 0x011c, 0x0006, -2, 1, 0x0002, ar28, + 0, 0, 0, 0, 0, 0) + XTREG(30, 120, 32, 4, 4, 0x011d, 0x0006, -2, 1, 0x0002, ar29, + 0, 0, 0, 0, 0, 0) + XTREG(31, 124, 32, 4, 4, 0x011e, 0x0006, -2, 1, 0x0002, ar30, + 0, 0, 0, 0, 0, 0) + XTREG(32, 128, 32, 4, 4, 0x011f, 0x0006, -2, 1, 0x0002, ar31, + 0, 0, 0, 0, 0, 0) + XTREG(33, 132, 32, 4, 4, 0x0200, 0x0006, -2, 2, 0x1100, lbeg, + 0, 0, 0, 0, 0, 0) + XTREG(34, 136, 32, 4, 4, 0x0201, 0x0006, -2, 2, 0x1100, lend, + 0, 0, 0, 0, 0, 0) + XTREG(35, 140, 32, 4, 4, 0x0202, 0x0006, -2, 2, 0x1100, lcount, + 0, 0, 0, 0, 0, 0) + XTREG(36, 144, 6, 4, 4, 0x0203, 0x0006, -2, 2, 0x1100, sar, + 0, 0, 0, 0, 0, 0) + XTREG(37, 148, 32, 4, 4, 0x0205, 0x0006, -2, 2, 0x1100, litbase, + 0, 0, 0, 0, 0, 0) + XTREG(38, 152, 3, 4, 4, 0x0248, 0x0006, -2, 2, 0x1002, windowbase, + 0, 0, 0, 0, 0, 0) + XTREG(39, 156, 8, 4, 4, 0x0249, 0x0006, -2, 2, 0x1002, windowstart, + 0, 0, 0, 0, 0, 0) + XTREG(40, 160, 32, 4, 4, 0x02b0, 0x0002, -2, 2, 0x1000, sr176, + 0, 0, 0, 0, 0, 0) + XTREG(41, 164, 32, 4, 4, 0x02d0, 0x0002, -2, 2, 0x1000, sr208, + 0, 0, 0, 0, 0, 0) + XTREG(42, 168, 19, 4, 4, 0x02e6, 0x0006, -2, 2, 0x1100, ps, + 0, 0, 0, 0, 0, 0) + XTREG(43, 172, 32, 4, 4, 0x03e7, 0x0006, -2, 3, 0x0110, threadptr, + 0, 0, 0, 0, 0, 0) + XTREG(44, 176, 32, 4, 4, 0x020c, 0x0006, -1, 2, 0x1100, scompare1, + 0, 0, 0, 0, 0, 0) + XTREG(45, 180, 32, 4, 4, 0x0210, 0x0006, -1, 2, 0x1100, acclo, + 0, 0, 0, 0, 0, 0) + XTREG(46, 184, 8, 4, 4, 0x0211, 0x0006, -1, 2, 0x1100, acchi, + 0, 0, 0, 0, 0, 0) + XTREG(47, 188, 32, 4, 4, 0x0220, 0x0006, -1, 2, 0x1100, m0, + 0, 0, 0, 0, 0, 0) + XTREG(48, 192, 32, 4, 4, 0x0221, 0x0006, -1, 2, 0x1100, m1, + 0, 0, 0, 0, 0, 0) + XTREG(49, 196, 32, 4, 4, 0x0222, 0x0006, -1, 2, 0x1100, m2, + 0, 0, 0, 0, 0, 0) + XTREG(50, 200, 32, 4, 4, 0x0223, 0x0006, -1, 2, 0x1100, m3, + 0, 0, 0, 0, 0, 0) + XTREG(51, 204, 32, 4, 4, 0x03e6, 0x000e, -1, 3, 0x0110, expstate, + 0, 0, 0, 0, 0, 0) + XTREG(52, 208, 32, 4, 4, 0x0253, 0x0007, -2, 2, 0x1000, ptevaddr, + 0, 0, 0, 0, 0, 0) + XTREG(53, 212, 32, 4, 4, 0x0259, 0x000d, -2, 2, 0x1000, mmid, + 0, 0, 0, 0, 0, 0) + XTREG(54, 216, 32, 4, 4, 0x025a, 0x0007, -2, 2, 0x1000, rasid, + 0, 0, 0, 0, 0, 0) + XTREG(55, 220, 18, 4, 4, 0x025b, 0x0007, -2, 2, 0x1000, itlbcfg, + 0, 0, 0, 0, 0, 0) + XTREG(56, 224, 18, 4, 4, 0x025c, 0x0007, -2, 2, 0x1000, dtlbcfg, + 0, 0, 0, 0, 0, 0) + XTREG(57, 228, 2, 4, 4, 0x0260, 0x0007, -2, 2, 0x1000, ibreakenable, + 0, 0, 0, 0, 0, 0) + XTREG(58, 232, 32, 4, 4, 0x0268, 0x0007, -2, 2, 0x1000, ddr, + 0, 0, 0, 0, 0, 0) + XTREG(59, 236, 32, 4, 4, 0x0280, 0x0007, -2, 2, 0x1000, ibreaka0, + 0, 0, 0, 0, 0, 0) + XTREG(60, 240, 32, 4, 4, 0x0281, 0x0007, -2, 2, 0x1000, ibreaka1, + 0, 0, 0, 0, 0, 0) + XTREG(61, 244, 32, 4, 4, 0x0290, 0x0007, -2, 2, 0x1000, dbreaka0, + 0, 0, 0, 0, 0, 0) + XTREG(62, 248, 32, 4, 4, 0x0291, 0x0007, -2, 2, 0x1000, dbreaka1, + 0, 0, 0, 0, 0, 0) + XTREG(63, 252, 32, 4, 4, 0x02a0, 0x0007, -2, 2, 0x1000, dbreakc0, + 0, 0, 0, 0, 0, 0) + XTREG(64, 256, 32, 4, 4, 0x02a1, 0x0007, -2, 2, 0x1000, dbreakc1, + 0, 0, 0, 0, 0, 0) + XTREG(65, 260, 32, 4, 4, 0x02b1, 0x0007, -2, 2, 0x1000, epc1, + 0, 0, 0, 0, 0, 0) + XTREG(66, 264, 32, 4, 4, 0x02b2, 0x0007, -2, 2, 0x1000, epc2, + 0, 0, 0, 0, 0, 0) + XTREG(67, 268, 32, 4, 4, 0x02b3, 0x0007, -2, 2, 0x1000, epc3, + 0, 0, 0, 0, 0, 0) + XTREG(68, 272, 32, 4, 4, 0x02b4, 0x0007, -2, 2, 0x1000, epc4, + 0, 0, 0, 0, 0, 0) + XTREG(69, 276, 32, 4, 4, 0x02b5, 0x0007, -2, 2, 0x1000, epc5, + 0, 0, 0, 0, 0, 0) + XTREG(70, 280, 32, 4, 4, 0x02b6, 0x0007, -2, 2, 0x1000, epc6, + 0, 0, 0, 0, 0, 0) + XTREG(71, 284, 32, 4, 4, 0x02b7, 0x0007, -2, 2, 0x1000, epc7, + 0, 0, 0, 0, 0, 0) + XTREG(72, 288, 32, 4, 4, 0x02c0, 0x0007, -2, 2, 0x1000, depc, + 0, 0, 0, 0, 0, 0) + XTREG(73, 292, 19, 4, 4, 0x02c2, 0x0007, -2, 2, 0x1000, eps2, + 0, 0, 0, 0, 0, 0) + XTREG(74, 296, 19, 4, 4, 0x02c3, 0x0007, -2, 2, 0x1000, eps3, + 0, 0, 0, 0, 0, 0) + XTREG(75, 300, 19, 4, 4, 0x02c4, 0x0007, -2, 2, 0x1000, eps4, + 0, 0, 0, 0, 0, 0) + XTREG(76, 304, 19, 4, 4, 0x02c5, 0x0007, -2, 2, 0x1000, eps5, + 0, 0, 0, 0, 0, 0) + XTREG(77, 308, 19, 4, 4, 0x02c6, 0x0007, -2, 2, 0x1000, eps6, + 0, 0, 0, 0, 0, 0) + XTREG(78, 312, 19, 4, 4, 0x02c7, 0x0007, -2, 2, 0x1000, eps7, + 0, 0, 0, 0, 0, 0) + XTREG(79, 316, 32, 4, 4, 0x02d1, 0x0007, -2, 2, 0x1000, excsave1, + 0, 0, 0, 0, 0, 0) + XTREG(80, 320, 32, 4, 4, 0x02d2, 0x0007, -2, 2, 0x1000, excsave2, + 0, 0, 0, 0, 0, 0) + XTREG(81, 324, 32, 4, 4, 0x02d3, 0x0007, -2, 2, 0x1000, excsave3, + 0, 0, 0, 0, 0, 0) + XTREG(82, 328, 32, 4, 4, 0x02d4, 0x0007, -2, 2, 0x1000, excsave4, + 0, 0, 0, 0, 0, 0) + XTREG(83, 332, 32, 4, 4, 0x02d5, 0x0007, -2, 2, 0x1000, excsave5, + 0, 0, 0, 0, 0, 0) + XTREG(84, 336, 32, 4, 4, 0x02d6, 0x0007, -2, 2, 0x1000, excsave6, + 0, 0, 0, 0, 0, 0) + XTREG(85, 340, 32, 4, 4, 0x02d7, 0x0007, -2, 2, 0x1000, excsave7, + 0, 0, 0, 0, 0, 0) + XTREG(86, 344, 8, 4, 4, 0x02e0, 0x0007, -2, 2, 0x1000, cpenable, + 0, 0, 0, 0, 0, 0) + XTREG(87, 348, 22, 4, 4, 0x02e2, 0x000b, -2, 2, 0x1000, interrupt, + 0, 0, 0, 0, 0, 0) + XTREG(88, 352, 22, 4, 4, 0x02e2, 0x000d, -2, 2, 0x1000, intset, + 0, 0, 0, 0, 0, 0) + XTREG(89, 356, 22, 4, 4, 0x02e3, 0x000d, -2, 2, 0x1000, intclear, + 0, 0, 0, 0, 0, 0) + XTREG(90, 360, 22, 4, 4, 0x02e4, 0x0007, -2, 2, 0x1000, intenable, + 0, 0, 0, 0, 0, 0) + XTREG(91, 364, 32, 4, 4, 0x02e7, 0x0007, -2, 2, 0x1000, vecbase, + 0, 0, 0, 0, 0, 0) + XTREG(92, 368, 6, 4, 4, 0x02e8, 0x0007, -2, 2, 0x1000, exccause, + 0, 0, 0, 0, 0, 0) + XTREG(93, 372, 12, 4, 4, 0x02e9, 0x0003, -2, 2, 0x1000, debugcause, + 0, 0, 0, 0, 0, 0) + XTREG(94, 376, 32, 4, 4, 0x02ea, 0x000f, -2, 2, 0x1000, ccount, + 0, 0, 0, 0, 0, 0) + XTREG(95, 380, 32, 4, 4, 0x02eb, 0x0003, -2, 2, 0x1000, prid, + 0, 0, 0, 0, 0, 0) + XTREG(96, 384, 32, 4, 4, 0x02ec, 0x000f, -2, 2, 0x1000, icount, + 0, 0, 0, 0, 0, 0) + XTREG(97, 388, 4, 4, 4, 0x02ed, 0x0007, -2, 2, 0x1000, icountlevel, + 0, 0, 0, 0, 0, 0) + XTREG(98, 392, 32, 4, 4, 0x02ee, 0x0007, -2, 2, 0x1000, excvaddr, + 0, 0, 0, 0, 0, 0) + XTREG(99, 396, 32, 4, 4, 0x02f0, 0x000f, -2, 2, 0x1000, ccompare0, + 0, 0, 0, 0, 0, 0) + XTREG(100, 400, 32, 4, 4, 0x02f1, 0x000f, -2, 2, 0x1000, ccompare1, + 0, 0, 0, 0, 0, 0) + XTREG(101, 404, 32, 4, 4, 0x02f2, 0x000f, -2, 2, 0x1000, ccompare2, + 0, 0, 0, 0, 0, 0) + XTREG(102, 408, 32, 4, 4, 0x02f4, 0x0007, -2, 2, 0x1000, misc0, + 0, 0, 0, 0, 0, 0) + XTREG(103, 412, 32, 4, 4, 0x02f5, 0x0007, -2, 2, 0x1000, misc1, + 0, 0, 0, 0, 0, 0) + XTREG(104, 416, 32, 4, 4, 0x0000, 0x0006, -2, 8, 0x0100, a0, + 0, 0, 0, 0, 0, 0) + XTREG(105, 420, 32, 4, 4, 0x0001, 0x0006, -2, 8, 0x0100, a1, + 0, 0, 0, 0, 0, 0) + XTREG(106, 424, 32, 4, 4, 0x0002, 0x0006, -2, 8, 0x0100, a2, + 0, 0, 0, 0, 0, 0) + XTREG(107, 428, 32, 4, 4, 0x0003, 0x0006, -2, 8, 0x0100, a3, + 0, 0, 0, 0, 0, 0) + XTREG(108, 432, 32, 4, 4, 0x0004, 0x0006, -2, 8, 0x0100, a4, + 0, 0, 0, 0, 0, 0) + XTREG(109, 436, 32, 4, 4, 0x0005, 0x0006, -2, 8, 0x0100, a5, + 0, 0, 0, 0, 0, 0) + XTREG(110, 440, 32, 4, 4, 0x0006, 0x0006, -2, 8, 0x0100, a6, + 0, 0, 0, 0, 0, 0) + XTREG(111, 444, 32, 4, 4, 0x0007, 0x0006, -2, 8, 0x0100, a7, + 0, 0, 0, 0, 0, 0) + XTREG(112, 448, 32, 4, 4, 0x0008, 0x0006, -2, 8, 0x0100, a8, + 0, 0, 0, 0, 0, 0) + XTREG(113, 452, 32, 4, 4, 0x0009, 0x0006, -2, 8, 0x0100, a9, + 0, 0, 0, 0, 0, 0) + XTREG(114, 456, 32, 4, 4, 0x000a, 0x0006, -2, 8, 0x0100, a10, + 0, 0, 0, 0, 0, 0) + XTREG(115, 460, 32, 4, 4, 0x000b, 0x0006, -2, 8, 0x0100, a11, + 0, 0, 0, 0, 0, 0) + XTREG(116, 464, 32, 4, 4, 0x000c, 0x0006, -2, 8, 0x0100, a12, + 0, 0, 0, 0, 0, 0) + XTREG(117, 468, 32, 4, 4, 0x000d, 0x0006, -2, 8, 0x0100, a13, + 0, 0, 0, 0, 0, 0) + XTREG(118, 472, 32, 4, 4, 0x000e, 0x0006, -2, 8, 0x0100, a14, + 0, 0, 0, 0, 0, 0) + XTREG(119, 476, 32, 4, 4, 0x000f, 0x0006, -2, 8, 0x0100, a15, + 0, 0, 0, 0, 0, 0) diff --git a/src/target-xtensa/core-dc233c.c b/src/target-xtensa/core-dc233c.c new file mode 100644 index 0000000..8daf7d9 --- /dev/null +++ b/src/target-xtensa/core-dc233c.c @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2012, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "cpu.h" +#include "exec/exec-all.h" +#include "exec/gdbstub.h" +#include "qemu-common.h" +#include "qemu/host-utils.h" + +#include "core-dc233c/core-isa.h" +#include "overlay_tool.h" + +static XtensaConfig dc233c __attribute__((unused)) = { + .name = "dc233c", + .gdb_regmap = { + .num_regs = 121, + .num_core_regs = 52, + .reg = { +#include "core-dc233c/gdb-config.c" + } + }, + .clock_freq_khz = 10000, + DEFAULT_SECTIONS +}; + +REGISTER_CORE(dc233c) diff --git a/src/target-xtensa/core-dc233c/core-isa.h b/src/target-xtensa/core-dc233c/core-isa.h new file mode 100644 index 0000000..e82c3cb --- /dev/null +++ b/src/target-xtensa/core-dc233c/core-isa.h @@ -0,0 +1,474 @@ +/* + * xtensa/config/core-isa.h -- HAL definitions that are dependent on Xtensa + * processor CORE configuration + * + * See <xtensa/config/core.h>, which includes this file, for more details. + */ + +/* Xtensa processor core configuration information. + + Copyright (c) 1999-2010 Tensilica Inc. + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + "Software"), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#ifndef _XTENSA_CORE_CONFIGURATION_H +#define _XTENSA_CORE_CONFIGURATION_H + + +/**************************************************************************** + Parameters Useful for Any Code, USER or PRIVILEGED + ****************************************************************************/ + +/* + * Note: Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is + * configured, and a value of 0 otherwise. These macros are always defined. + */ + + +/*---------------------------------------------------------------------- + ISA + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_BE 0 /* big-endian byte ordering */ +#define XCHAL_HAVE_WINDOWED 1 /* windowed registers option */ +#define XCHAL_NUM_AREGS 32 /* num of physical addr regs */ +#define XCHAL_NUM_AREGS_LOG2 5 /* log2(XCHAL_NUM_AREGS) */ +#define XCHAL_MAX_INSTRUCTION_SIZE 3 /* max instr bytes (3..8) */ +#define XCHAL_HAVE_DEBUG 1 /* debug option */ +#define XCHAL_HAVE_DENSITY 1 /* 16-bit instructions */ +#define XCHAL_HAVE_LOOPS 1 /* zero-overhead loops */ +#define XCHAL_HAVE_NSA 1 /* NSA/NSAU instructions */ +#define XCHAL_HAVE_MINMAX 1 /* MIN/MAX instructions */ +#define XCHAL_HAVE_SEXT 1 /* SEXT instruction */ +#define XCHAL_HAVE_CLAMPS 1 /* CLAMPS instruction */ +#define XCHAL_HAVE_MUL16 1 /* MUL16S/MUL16U instructions */ +#define XCHAL_HAVE_MUL32 1 /* MULL instruction */ +#define XCHAL_HAVE_MUL32_HIGH 0 /* MULUH/MULSH instructions */ +#define XCHAL_HAVE_DIV32 1 /* QUOS/QUOU/REMS/REMU instructions */ +#define XCHAL_HAVE_L32R 1 /* L32R instruction */ +#define XCHAL_HAVE_ABSOLUTE_LITERALS 1 /* non-PC-rel (extended) L32R */ +#define XCHAL_HAVE_CONST16 0 /* CONST16 instruction */ +#define XCHAL_HAVE_ADDX 1 /* ADDX#/SUBX# instructions */ +#define XCHAL_HAVE_WIDE_BRANCHES 0 /* B*.W18 or B*.W15 instr's */ +#define XCHAL_HAVE_PREDICTED_BRANCHES 0 /* B[EQ/EQZ/NE/NEZ]T instr's */ +#define XCHAL_HAVE_CALL4AND12 1 /* (obsolete option) */ +#define XCHAL_HAVE_ABS 1 /* ABS instruction */ +/*#define XCHAL_HAVE_POPC 0*/ /* POPC instruction */ +/*#define XCHAL_HAVE_CRC 0*/ /* CRC instruction */ +#define XCHAL_HAVE_RELEASE_SYNC 1 /* L32AI/S32RI instructions */ +#define XCHAL_HAVE_S32C1I 1 /* S32C1I instruction */ +#define XCHAL_HAVE_SPECULATION 0 /* speculation */ +#define XCHAL_HAVE_FULL_RESET 1 /* all regs/state reset */ +#define XCHAL_NUM_CONTEXTS 1 /* */ +#define XCHAL_NUM_MISC_REGS 2 /* num of scratch regs (0..4) */ +#define XCHAL_HAVE_TAP_MASTER 0 /* JTAG TAP control instr's */ +#define XCHAL_HAVE_PRID 1 /* processor ID register */ +#define XCHAL_HAVE_EXTERN_REGS 1 /* WER/RER instructions */ +#define XCHAL_HAVE_MP_INTERRUPTS 0 /* interrupt distributor port */ +#define XCHAL_HAVE_MP_RUNSTALL 0 /* core RunStall control port */ +#define XCHAL_HAVE_THREADPTR 1 /* THREADPTR register */ +#define XCHAL_HAVE_BOOLEANS 0 /* boolean registers */ +#define XCHAL_HAVE_CP 1 /* CPENABLE reg (coprocessor) */ +#define XCHAL_CP_MAXCFG 8 /* max allowed cp id plus one */ +#define XCHAL_HAVE_MAC16 1 /* MAC16 package */ +#define XCHAL_HAVE_VECTORFPU2005 0 /* vector floating-point pkg */ +#define XCHAL_HAVE_FP 0 /* floating point pkg */ +#define XCHAL_HAVE_DFP 0 /* double precision FP pkg */ +#define XCHAL_HAVE_DFP_accel 0 /* double precision FP acceleration pkg */ +#define XCHAL_HAVE_VECTRA1 0 /* Vectra I pkg */ +#define XCHAL_HAVE_VECTRALX 0 /* Vectra LX pkg */ +#define XCHAL_HAVE_HIFIPRO 0 /* HiFiPro Audio Engine pkg */ +#define XCHAL_HAVE_HIFI2 0 /* HiFi2 Audio Engine pkg */ +#define XCHAL_HAVE_HIFI2EP 0 /* HiFi2EP */ +#define XCHAL_HAVE_CONNXD2 0 /* ConnX D2 pkg */ +#define XCHAL_HAVE_BBE16 0 /* ConnX BBE16 pkg */ +#define XCHAL_HAVE_BBE16_RSQRT 0 /* BBE16 & vector recip sqrt */ +#define XCHAL_HAVE_BBE16_VECDIV 0 /* BBE16 & vector divide */ +#define XCHAL_HAVE_BBE16_DESPREAD 0 /* BBE16 & despread */ +#define XCHAL_HAVE_BSP3 0 /* ConnX BSP3 pkg */ +#define XCHAL_HAVE_SSP16 0 /* ConnX SSP16 pkg */ +#define XCHAL_HAVE_SSP16_VITERBI 0 /* SSP16 & viterbi */ +#define XCHAL_HAVE_TURBO16 0 /* ConnX Turbo16 pkg */ +#define XCHAL_HAVE_BBP16 0 /* ConnX BBP16 pkg */ + + +/*---------------------------------------------------------------------- + MISC + ----------------------------------------------------------------------*/ + +#define XCHAL_NUM_WRITEBUFFER_ENTRIES 8 /* size of write buffer */ +#define XCHAL_INST_FETCH_WIDTH 4 /* instr-fetch width in bytes */ +#define XCHAL_DATA_WIDTH 4 /* data width in bytes */ +/* In T1050, applies to selected core load and store instructions (see ISA): */ +#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* unaligned loads cause exc. */ +#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* unaligned stores cause exc.*/ +#define XCHAL_UNALIGNED_LOAD_HW 0 /* unaligned loads work in hw */ +#define XCHAL_UNALIGNED_STORE_HW 0 /* unaligned stores work in hw*/ + +#define XCHAL_SW_VERSION 900001 /* sw version of this header */ + +#define XCHAL_CORE_ID "dc233c" /* alphanum core name +(CoreID) set in the Xtensa +Processor Generator */ + +#define XCHAL_CORE_DESCRIPTION "dc233c" +#define XCHAL_BUILD_UNIQUE_ID 0x00004B21 /* 22-bit sw build ID */ + +/* + * These definitions describe the hardware targeted by this software. + */ +#define XCHAL_HW_CONFIGID0 0xC56707FE /* ConfigID hi 32 bits*/ +#define XCHAL_HW_CONFIGID1 0x14404B21 /* ConfigID lo 32 bits*/ +#define XCHAL_HW_VERSION_NAME "LX4.0.1" /* full version name */ +#define XCHAL_HW_VERSION_MAJOR 2400 /* major ver# of targeted hw */ +#define XCHAL_HW_VERSION_MINOR 1 /* minor ver# of targeted hw */ +#define XCHAL_HW_VERSION 240001 /* major*100+minor */ +#define XCHAL_HW_REL_LX4 1 +#define XCHAL_HW_REL_LX4_0 1 +#define XCHAL_HW_REL_LX4_0_1 1 +#define XCHAL_HW_CONFIGID_RELIABLE 1 +/* If software targets a *range* of hardware versions, these are the bounds: */ +#define XCHAL_HW_MIN_VERSION_MAJOR 2400 /* major v of earliest tgt hw */ +#define XCHAL_HW_MIN_VERSION_MINOR 1 /* minor v of earliest tgt hw */ +#define XCHAL_HW_MIN_VERSION 240001 /* earliest targeted hw */ +#define XCHAL_HW_MAX_VERSION_MAJOR 2400 /* major v of latest tgt hw */ +#define XCHAL_HW_MAX_VERSION_MINOR 1 /* minor v of latest tgt hw */ +#define XCHAL_HW_MAX_VERSION 240001 /* latest targeted hw */ + + +/*---------------------------------------------------------------------- + CACHE + ----------------------------------------------------------------------*/ + +#define XCHAL_ICACHE_LINESIZE 32 /* I-cache line size in bytes */ +#define XCHAL_DCACHE_LINESIZE 32 /* D-cache line size in bytes */ +#define XCHAL_ICACHE_LINEWIDTH 5 /* log2(I line size in bytes) */ +#define XCHAL_DCACHE_LINEWIDTH 5 /* log2(D line size in bytes) */ + +#define XCHAL_ICACHE_SIZE 16384 /* I-cache size in bytes or 0 */ +#define XCHAL_DCACHE_SIZE 16384 /* D-cache size in bytes or 0 */ + +#define XCHAL_DCACHE_IS_WRITEBACK 1 /* writeback feature */ +#define XCHAL_DCACHE_IS_COHERENT 0 /* MP coherence feature */ + +#define XCHAL_HAVE_PREFETCH 0 /* PREFCTL register */ + + + + +/**************************************************************************** + Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code + ****************************************************************************/ + + +#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY + +/*---------------------------------------------------------------------- + CACHE + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_PIF 1 /* any outbound PIF present */ + +/* If present, cache size in bytes == (ways * 2^(linewidth + setwidth)). */ + +/* Number of cache sets in log2(lines per way): */ +#define XCHAL_ICACHE_SETWIDTH 7 +#define XCHAL_DCACHE_SETWIDTH 7 + +/* Cache set associativity (number of ways): */ +#define XCHAL_ICACHE_WAYS 4 +#define XCHAL_DCACHE_WAYS 4 + +/* Cache features: */ +#define XCHAL_ICACHE_LINE_LOCKABLE 1 +#define XCHAL_DCACHE_LINE_LOCKABLE 1 +#define XCHAL_ICACHE_ECC_PARITY 0 +#define XCHAL_DCACHE_ECC_PARITY 0 + +/* Cache access size in bytes (affects operation of SICW instruction): */ +#define XCHAL_ICACHE_ACCESS_SIZE 4 +#define XCHAL_DCACHE_ACCESS_SIZE 4 + +/* Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits): */ +#define XCHAL_CA_BITS 4 + + +/*---------------------------------------------------------------------- + INTERNAL I/D RAM/ROMs and XLMI + ----------------------------------------------------------------------*/ + +#define XCHAL_NUM_INSTROM 0 /* number of core instr. ROMs */ +#define XCHAL_NUM_INSTRAM 0 /* number of core instr. RAMs */ +#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs */ +#define XCHAL_NUM_DATARAM 0 /* number of core data RAMs */ +#define XCHAL_NUM_URAM 0 /* number of core unified RAMs*/ +#define XCHAL_NUM_XLMI 0 /* number of core XLMI ports */ + +#define XCHAL_HAVE_IMEM_LOADSTORE 1 /* can load/store to IROM/IRAM*/ + + +/*---------------------------------------------------------------------- + INTERRUPTS and TIMERS + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_INTERRUPTS 1 /* interrupt option */ +#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* med/high-pri. interrupts */ +#define XCHAL_HAVE_NMI 1 /* non-maskable interrupt */ +#define XCHAL_HAVE_CCOUNT 1 /* CCOUNT reg. (timer option) */ +#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */ +#define XCHAL_NUM_INTERRUPTS 22 /* number of interrupts */ +#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* ceil(log2(NUM_INTERRUPTS)) */ +#define XCHAL_NUM_EXTINTERRUPTS 17 /* num of external interrupts */ +#define XCHAL_NUM_INTLEVELS 6 /* number of interrupt levels +(not including level zero) */ +#define XCHAL_EXCM_LEVEL 3 /* level masked by PS.EXCM */ +/* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */ + +/* Masks of interrupts at each interrupt level: */ +#define XCHAL_INTLEVEL1_MASK 0x001F80FF +#define XCHAL_INTLEVEL2_MASK 0x00000100 +#define XCHAL_INTLEVEL3_MASK 0x00200E00 +#define XCHAL_INTLEVEL4_MASK 0x00001000 +#define XCHAL_INTLEVEL5_MASK 0x00002000 +#define XCHAL_INTLEVEL6_MASK 0x00000000 +#define XCHAL_INTLEVEL7_MASK 0x00004000 + +/* Masks of interrupts at each range 1..n of interrupt levels: */ +#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x001F80FF +#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x001F81FF +#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x003F8FFF +#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x003F9FFF +#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x003FBFFF +#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x003FBFFF +#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x003FFFFF + +/* Level of each interrupt: */ +#define XCHAL_INT0_LEVEL 1 +#define XCHAL_INT1_LEVEL 1 +#define XCHAL_INT2_LEVEL 1 +#define XCHAL_INT3_LEVEL 1 +#define XCHAL_INT4_LEVEL 1 +#define XCHAL_INT5_LEVEL 1 +#define XCHAL_INT6_LEVEL 1 +#define XCHAL_INT7_LEVEL 1 +#define XCHAL_INT8_LEVEL 2 +#define XCHAL_INT9_LEVEL 3 +#define XCHAL_INT10_LEVEL 3 +#define XCHAL_INT11_LEVEL 3 +#define XCHAL_INT12_LEVEL 4 +#define XCHAL_INT13_LEVEL 5 +#define XCHAL_INT14_LEVEL 7 +#define XCHAL_INT15_LEVEL 1 +#define XCHAL_INT16_LEVEL 1 +#define XCHAL_INT17_LEVEL 1 +#define XCHAL_INT18_LEVEL 1 +#define XCHAL_INT19_LEVEL 1 +#define XCHAL_INT20_LEVEL 1 +#define XCHAL_INT21_LEVEL 3 +#define XCHAL_DEBUGLEVEL 6 /* debug interrupt level */ +#define XCHAL_HAVE_DEBUG_EXTERN_INT 1 /* OCD external db interrupt */ +#define XCHAL_NMILEVEL 7 /* NMI "level" (for use with +EXCSAVE/EPS/EPC_n, RFI n) */ + +/* Type of each interrupt: */ +#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT6_TYPE XTHAL_INTTYPE_TIMER +#define XCHAL_INT7_TYPE XTHAL_INTTYPE_SOFTWARE +#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT10_TYPE XTHAL_INTTYPE_TIMER +#define XCHAL_INT11_TYPE XTHAL_INTTYPE_SOFTWARE +#define XCHAL_INT12_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT13_TYPE XTHAL_INTTYPE_TIMER +#define XCHAL_INT14_TYPE XTHAL_INTTYPE_NMI +#define XCHAL_INT15_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT16_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT17_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT18_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT19_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT20_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT21_TYPE XTHAL_INTTYPE_EXTERN_EDGE + +/* Masks of interrupts for each type of interrupt: */ +#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFC00000 +#define XCHAL_INTTYPE_MASK_SOFTWARE 0x00000880 +#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x003F8000 +#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000133F +#define XCHAL_INTTYPE_MASK_TIMER 0x00002440 +#define XCHAL_INTTYPE_MASK_NMI 0x00004000 +#define XCHAL_INTTYPE_MASK_WRITE_ERROR 0x00000000 + +/* Interrupt numbers assigned to specific interrupt sources: */ +#define XCHAL_TIMER0_INTERRUPT 6 /* CCOMPARE0 */ +#define XCHAL_TIMER1_INTERRUPT 10 /* CCOMPARE1 */ +#define XCHAL_TIMER2_INTERRUPT 13 /* CCOMPARE2 */ +#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED +#define XCHAL_NMI_INTERRUPT 14 /* non-maskable interrupt */ + +/* Interrupt numbers for levels at which only one interrupt is configured: */ +#define XCHAL_INTLEVEL2_NUM 8 +#define XCHAL_INTLEVEL4_NUM 12 +#define XCHAL_INTLEVEL5_NUM 13 +#define XCHAL_INTLEVEL7_NUM 14 +/* (There are many interrupts each at level(s) 1, 3.) */ + + +/* + * External interrupt vectors/levels. + * These macros describe how Xtensa processor interrupt numbers + * (as numbered internally, eg. in INTERRUPT and INTENABLE registers) + * map to external BInterrupt<n> pins, for those interrupts + * configured as external (level-triggered, edge-triggered, or NMI). + * See the Xtensa processor databook for more details. + */ + +/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */ +#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */ +#define XCHAL_EXTINT1_NUM 1 /* (intlevel 1) */ +#define XCHAL_EXTINT2_NUM 2 /* (intlevel 1) */ +#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */ +#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */ +#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */ +#define XCHAL_EXTINT6_NUM 8 /* (intlevel 2) */ +#define XCHAL_EXTINT7_NUM 9 /* (intlevel 3) */ +#define XCHAL_EXTINT8_NUM 12 /* (intlevel 4) */ +#define XCHAL_EXTINT9_NUM 14 /* (intlevel 7) */ +#define XCHAL_EXTINT10_NUM 15 /* (intlevel 1) */ +#define XCHAL_EXTINT11_NUM 16 /* (intlevel 1) */ +#define XCHAL_EXTINT12_NUM 17 /* (intlevel 1) */ +#define XCHAL_EXTINT13_NUM 18 /* (intlevel 1) */ +#define XCHAL_EXTINT14_NUM 19 /* (intlevel 1) */ +#define XCHAL_EXTINT15_NUM 20 /* (intlevel 1) */ +#define XCHAL_EXTINT16_NUM 21 /* (intlevel 3) */ + + +/*---------------------------------------------------------------------- + EXCEPTIONS and VECTORS + ----------------------------------------------------------------------*/ + +#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture +number: 1 == XEA1 (old) +2 == XEA2 (new) +0 == XEAX (extern) or TX */ +#define XCHAL_HAVE_XEA1 0 /* Exception Architecture 1 */ +#define XCHAL_HAVE_XEA2 1 /* Exception Architecture 2 */ +#define XCHAL_HAVE_XEAX 0 /* External Exception Arch. */ +#define XCHAL_HAVE_EXCEPTIONS 1 /* exception option */ +#define XCHAL_HAVE_HALT 0 /* halt architecture option */ +#define XCHAL_HAVE_BOOTLOADER 0 /* boot loader (for TX) */ +#define XCHAL_HAVE_MEM_ECC_PARITY 0 /* local memory ECC/parity */ +#define XCHAL_HAVE_VECTOR_SELECT 1 /* relocatable vectors */ +#define XCHAL_HAVE_VECBASE 1 /* relocatable vectors */ +#define XCHAL_VECBASE_RESET_VADDR 0x00002000 /* VECBASE reset value */ +#define XCHAL_VECBASE_RESET_PADDR 0x00002000 +#define XCHAL_RESET_VECBASE_OVERLAP 0 + +#define XCHAL_RESET_VECTOR0_VADDR 0xFE000000 +#define XCHAL_RESET_VECTOR0_PADDR 0xFE000000 +#define XCHAL_RESET_VECTOR1_VADDR 0x00001000 +#define XCHAL_RESET_VECTOR1_PADDR 0x00001000 +#define XCHAL_RESET_VECTOR_VADDR 0xFE000000 +#define XCHAL_RESET_VECTOR_PADDR 0xFE000000 +#define XCHAL_USER_VECOFS 0x00000340 +#define XCHAL_USER_VECTOR_VADDR 0x00002340 +#define XCHAL_USER_VECTOR_PADDR 0x00002340 +#define XCHAL_KERNEL_VECOFS 0x00000300 +#define XCHAL_KERNEL_VECTOR_VADDR 0x00002300 +#define XCHAL_KERNEL_VECTOR_PADDR 0x00002300 +#define XCHAL_DOUBLEEXC_VECOFS 0x000003C0 +#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0x000023C0 +#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x000023C0 +#define XCHAL_WINDOW_OF4_VECOFS 0x00000000 +#define XCHAL_WINDOW_UF4_VECOFS 0x00000040 +#define XCHAL_WINDOW_OF8_VECOFS 0x00000080 +#define XCHAL_WINDOW_UF8_VECOFS 0x000000C0 +#define XCHAL_WINDOW_OF12_VECOFS 0x00000100 +#define XCHAL_WINDOW_UF12_VECOFS 0x00000140 +#define XCHAL_WINDOW_VECTORS_VADDR 0x00002000 +#define XCHAL_WINDOW_VECTORS_PADDR 0x00002000 +#define XCHAL_INTLEVEL2_VECOFS 0x00000180 +#define XCHAL_INTLEVEL2_VECTOR_VADDR 0x00002180 +#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x00002180 +#define XCHAL_INTLEVEL3_VECOFS 0x000001C0 +#define XCHAL_INTLEVEL3_VECTOR_VADDR 0x000021C0 +#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x000021C0 +#define XCHAL_INTLEVEL4_VECOFS 0x00000200 +#define XCHAL_INTLEVEL4_VECTOR_VADDR 0x00002200 +#define XCHAL_INTLEVEL4_VECTOR_PADDR 0x00002200 +#define XCHAL_INTLEVEL5_VECOFS 0x00000240 +#define XCHAL_INTLEVEL5_VECTOR_VADDR 0x00002240 +#define XCHAL_INTLEVEL5_VECTOR_PADDR 0x00002240 +#define XCHAL_INTLEVEL6_VECOFS 0x00000280 +#define XCHAL_INTLEVEL6_VECTOR_VADDR 0x00002280 +#define XCHAL_INTLEVEL6_VECTOR_PADDR 0x00002280 +#define XCHAL_DEBUG_VECOFS XCHAL_INTLEVEL6_VECOFS +#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL6_VECTOR_VADDR +#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL6_VECTOR_PADDR +#define XCHAL_NMI_VECOFS 0x000002C0 +#define XCHAL_NMI_VECTOR_VADDR 0x000022C0 +#define XCHAL_NMI_VECTOR_PADDR 0x000022C0 +#define XCHAL_INTLEVEL7_VECOFS XCHAL_NMI_VECOFS +#define XCHAL_INTLEVEL7_VECTOR_VADDR XCHAL_NMI_VECTOR_VADDR +#define XCHAL_INTLEVEL7_VECTOR_PADDR XCHAL_NMI_VECTOR_PADDR + + +/*---------------------------------------------------------------------- + DEBUG + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_OCD 1 /* OnChipDebug option */ +#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */ +#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */ +#define XCHAL_HAVE_OCD_DIR_ARRAY 1 /* faster OCD option */ + + +/*---------------------------------------------------------------------- + MMU + ----------------------------------------------------------------------*/ + +/* See core-matmap.h header file for more details. */ + +#define XCHAL_HAVE_TLBS 1 /* inverse of HAVE_CACHEATTR */ +#define XCHAL_HAVE_SPANNING_WAY 1 /* one way maps I+D 4GB vaddr */ +#define XCHAL_SPANNING_WAY 6 /* TLB spanning way number */ +#define XCHAL_HAVE_IDENTITY_MAP 0 /* vaddr == paddr always */ +#define XCHAL_HAVE_CACHEATTR 0 /* CACHEATTR register present */ +#define XCHAL_HAVE_MIMIC_CACHEATTR 0 /* region protection */ +#define XCHAL_HAVE_XLT_CACHEATTR 0 /* region prot. w/translation */ +#define XCHAL_HAVE_PTP_MMU 1 /* full MMU (with page table +[autorefill] and protection) +usable for an MMU-based OS */ +/* If none of the above last 4 are set, it's a custom TLB configuration. */ +#define XCHAL_ITLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */ +#define XCHAL_DTLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */ + +#define XCHAL_MMU_ASID_BITS 8 /* number of bits in ASIDs */ +#define XCHAL_MMU_RINGS 4 /* number of rings (1..4) */ +#define XCHAL_MMU_RING_BITS 2 /* num of bits in RING field */ + +#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */ + + +#endif /* _XTENSA_CORE_CONFIGURATION_H */ diff --git a/src/target-xtensa/core-dc233c/gdb-config.c b/src/target-xtensa/core-dc233c/gdb-config.c new file mode 100644 index 0000000..b632341 --- /dev/null +++ b/src/target-xtensa/core-dc233c/gdb-config.c @@ -0,0 +1,145 @@ +/* Configuration for the Xtensa architecture for GDB, the GNU debugger. + + Copyright (c) 2003-2010 Tensilica Inc. + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + "Software"), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +/* idx ofs bi sz al targno flags cp typ group name */ +XTREG(0, 0, 32, 4, 4, 0x0020, 0x0006, -2, 9, 0x0100, pc, 0, 0, 0, 0, 0, 0) +XTREG(1, 4, 32, 4, 4, 0x0100, 0x0006, -2, 1, 0x0002, ar0, 0, 0, 0, 0, 0, 0) +XTREG(2, 8, 32, 4, 4, 0x0101, 0x0006, -2, 1, 0x0002, ar1, 0, 0, 0, 0, 0, 0) +XTREG(3, 12, 32, 4, 4, 0x0102, 0x0006, -2, 1, 0x0002, ar2, 0, 0, 0, 0, 0, 0) +XTREG(4, 16, 32, 4, 4, 0x0103, 0x0006, -2, 1, 0x0002, ar3, 0, 0, 0, 0, 0, 0) +XTREG(5, 20, 32, 4, 4, 0x0104, 0x0006, -2, 1, 0x0002, ar4, 0, 0, 0, 0, 0, 0) +XTREG(6, 24, 32, 4, 4, 0x0105, 0x0006, -2, 1, 0x0002, ar5, 0, 0, 0, 0, 0, 0) +XTREG(7, 28, 32, 4, 4, 0x0106, 0x0006, -2, 1, 0x0002, ar6, 0, 0, 0, 0, 0, 0) +XTREG(8, 32, 32, 4, 4, 0x0107, 0x0006, -2, 1, 0x0002, ar7, 0, 0, 0, 0, 0, 0) +XTREG(9, 36, 32, 4, 4, 0x0108, 0x0006, -2, 1, 0x0002, ar8, 0, 0, 0, 0, 0, 0) +XTREG(10, 40, 32, 4, 4, 0x0109, 0x0006, -2, 1, 0x0002, ar9, 0, 0, 0, 0, 0, 0) +XTREG(11, 44, 32, 4, 4, 0x010a, 0x0006, -2, 1, 0x0002, ar10, 0, 0, 0, 0, 0, 0) +XTREG(12, 48, 32, 4, 4, 0x010b, 0x0006, -2, 1, 0x0002, ar11, 0, 0, 0, 0, 0, 0) +XTREG(13, 52, 32, 4, 4, 0x010c, 0x0006, -2, 1, 0x0002, ar12, 0, 0, 0, 0, 0, 0) +XTREG(14, 56, 32, 4, 4, 0x010d, 0x0006, -2, 1, 0x0002, ar13, 0, 0, 0, 0, 0, 0) +XTREG(15, 60, 32, 4, 4, 0x010e, 0x0006, -2, 1, 0x0002, ar14, 0, 0, 0, 0, 0, 0) +XTREG(16, 64, 32, 4, 4, 0x010f, 0x0006, -2, 1, 0x0002, ar15, 0, 0, 0, 0, 0, 0) +XTREG(17, 68, 32, 4, 4, 0x0110, 0x0006, -2, 1, 0x0002, ar16, 0, 0, 0, 0, 0, 0) +XTREG(18, 72, 32, 4, 4, 0x0111, 0x0006, -2, 1, 0x0002, ar17, 0, 0, 0, 0, 0, 0) +XTREG(19, 76, 32, 4, 4, 0x0112, 0x0006, -2, 1, 0x0002, ar18, 0, 0, 0, 0, 0, 0) +XTREG(20, 80, 32, 4, 4, 0x0113, 0x0006, -2, 1, 0x0002, ar19, 0, 0, 0, 0, 0, 0) +XTREG(21, 84, 32, 4, 4, 0x0114, 0x0006, -2, 1, 0x0002, ar20, 0, 0, 0, 0, 0, 0) +XTREG(22, 88, 32, 4, 4, 0x0115, 0x0006, -2, 1, 0x0002, ar21, 0, 0, 0, 0, 0, 0) +XTREG(23, 92, 32, 4, 4, 0x0116, 0x0006, -2, 1, 0x0002, ar22, 0, 0, 0, 0, 0, 0) +XTREG(24, 96, 32, 4, 4, 0x0117, 0x0006, -2, 1, 0x0002, ar23, 0, 0, 0, 0, 0, 0) +XTREG(25, 100, 32, 4, 4, 0x0118, 0x0006, -2, 1, 0x0002, ar24, 0, 0, 0, 0, 0, 0) +XTREG(26, 104, 32, 4, 4, 0x0119, 0x0006, -2, 1, 0x0002, ar25, 0, 0, 0, 0, 0, 0) +XTREG(27, 108, 32, 4, 4, 0x011a, 0x0006, -2, 1, 0x0002, ar26, 0, 0, 0, 0, 0, 0) +XTREG(28, 112, 32, 4, 4, 0x011b, 0x0006, -2, 1, 0x0002, ar27, 0, 0, 0, 0, 0, 0) +XTREG(29, 116, 32, 4, 4, 0x011c, 0x0006, -2, 1, 0x0002, ar28, 0, 0, 0, 0, 0, 0) +XTREG(30, 120, 32, 4, 4, 0x011d, 0x0006, -2, 1, 0x0002, ar29, 0, 0, 0, 0, 0, 0) +XTREG(31, 124, 32, 4, 4, 0x011e, 0x0006, -2, 1, 0x0002, ar30, 0, 0, 0, 0, 0, 0) +XTREG(32, 128, 32, 4, 4, 0x011f, 0x0006, -2, 1, 0x0002, ar31, 0, 0, 0, 0, 0, 0) +XTREG(33, 132, 32, 4, 4, 0x0200, 0x0006, -2, 2, 0x1100, lbeg, 0, 0, 0, 0, 0, 0) +XTREG(34, 136, 32, 4, 4, 0x0201, 0x0006, -2, 2, 0x1100, lend, 0, 0, 0, 0, 0, 0) +XTREG(35, 140, 32, 4, 4, 0x0202, 0x0006, -2, 2, 0x1100, lcount, 0, 0, 0, 0, 0, 0) +XTREG(36, 144, 6, 4, 4, 0x0203, 0x0006, -2, 2, 0x1100, sar, 0, 0, 0, 0, 0, 0) +XTREG(37, 148, 32, 4, 4, 0x0205, 0x0006, -2, 2, 0x1100, litbase, 0, 0, 0, 0, 0, 0) +XTREG(38, 152, 3, 4, 4, 0x0248, 0x0006, -2, 2, 0x1002, windowbase, 0, 0, 0, 0, 0, 0) +XTREG(39, 156, 8, 4, 4, 0x0249, 0x0006, -2, 2, 0x1002, windowstart, 0, 0, 0, 0, 0, 0) +XTREG(40, 160, 32, 4, 4, 0x02b0, 0x0002, -2, 2, 0x1000, sr176, 0, 0, 0, 0, 0, 0) +XTREG(41, 164, 32, 4, 4, 0x02d0, 0x0002, -2, 2, 0x1000, sr208, 0, 0, 0, 0, 0, 0) +XTREG(42, 168, 19, 4, 4, 0x02e6, 0x0006, -2, 2, 0x1100, ps, 0, 0, 0, 0, 0, 0) +XTREG(43, 172, 32, 4, 4, 0x03e7, 0x0006, -2, 3, 0x0110, threadptr, 0, 0, 0, 0, 0, 0) +XTREG(44, 176, 32, 4, 4, 0x020c, 0x0006, -1, 2, 0x1100, scompare1, 0, 0, 0, 0, 0, 0) +XTREG(45, 180, 32, 4, 4, 0x0210, 0x0006, -1, 2, 0x1100, acclo, 0, 0, 0, 0, 0, 0) +XTREG(46, 184, 8, 4, 4, 0x0211, 0x0006, -1, 2, 0x1100, acchi, 0, 0, 0, 0, 0, 0) +XTREG(47, 188, 32, 4, 4, 0x0220, 0x0006, -1, 2, 0x1100, m0, 0, 0, 0, 0, 0, 0) +XTREG(48, 192, 32, 4, 4, 0x0221, 0x0006, -1, 2, 0x1100, m1, 0, 0, 0, 0, 0, 0) +XTREG(49, 196, 32, 4, 4, 0x0222, 0x0006, -1, 2, 0x1100, m2, 0, 0, 0, 0, 0, 0) +XTREG(50, 200, 32, 4, 4, 0x0223, 0x0006, -1, 2, 0x1100, m3, 0, 0, 0, 0, 0, 0) +XTREG(51, 204, 32, 4, 4, 0x03e6, 0x000e, -1, 3, 0x0110, expstate, 0, 0, 0, 0, 0, 0) +XTREG(52, 208, 32, 4, 4, 0x0253, 0x0007, -2, 2, 0x1000, ptevaddr, 0, 0, 0, 0, 0, 0) +XTREG(53, 212, 32, 4, 4, 0x0259, 0x000d, -2, 2, 0x1000, mmid, 0, 0, 0, 0, 0, 0) +XTREG(54, 216, 32, 4, 4, 0x025a, 0x0007, -2, 2, 0x1000, rasid, 0, 0, 0, 0, 0, 0) +XTREG(55, 220, 25, 4, 4, 0x025b, 0x0007, -2, 2, 0x1000, itlbcfg, 0, 0, 0, 0, 0, 0) +XTREG(56, 224, 25, 4, 4, 0x025c, 0x0007, -2, 2, 0x1000, dtlbcfg, 0, 0, 0, 0, 0, 0) +XTREG(57, 228, 2, 4, 4, 0x0260, 0x0007, -2, 2, 0x1000, ibreakenable, 0, 0, 0, 0, 0, 0) +XTREG(58, 232, 6, 4, 4, 0x0263, 0x0007, -2, 2, 0x1000, atomctl, 0, 0, 0, 0, 0, 0) +XTREG(59, 236, 32, 4, 4, 0x0268, 0x0007, -2, 2, 0x1000, ddr, 0, 0, 0, 0, 0, 0) +XTREG(60, 240, 32, 4, 4, 0x0280, 0x0007, -2, 2, 0x1000, ibreaka0, 0, 0, 0, 0, 0, 0) +XTREG(61, 244, 32, 4, 4, 0x0281, 0x0007, -2, 2, 0x1000, ibreaka1, 0, 0, 0, 0, 0, 0) +XTREG(62, 248, 32, 4, 4, 0x0290, 0x0007, -2, 2, 0x1000, dbreaka0, 0, 0, 0, 0, 0, 0) +XTREG(63, 252, 32, 4, 4, 0x0291, 0x0007, -2, 2, 0x1000, dbreaka1, 0, 0, 0, 0, 0, 0) +XTREG(64, 256, 32, 4, 4, 0x02a0, 0x0007, -2, 2, 0x1000, dbreakc0, 0, 0, 0, 0, 0, 0) +XTREG(65, 260, 32, 4, 4, 0x02a1, 0x0007, -2, 2, 0x1000, dbreakc1, 0, 0, 0, 0, 0, 0) +XTREG(66, 264, 32, 4, 4, 0x02b1, 0x0007, -2, 2, 0x1000, epc1, 0, 0, 0, 0, 0, 0) +XTREG(67, 268, 32, 4, 4, 0x02b2, 0x0007, -2, 2, 0x1000, epc2, 0, 0, 0, 0, 0, 0) +XTREG(68, 272, 32, 4, 4, 0x02b3, 0x0007, -2, 2, 0x1000, epc3, 0, 0, 0, 0, 0, 0) +XTREG(69, 276, 32, 4, 4, 0x02b4, 0x0007, -2, 2, 0x1000, epc4, 0, 0, 0, 0, 0, 0) +XTREG(70, 280, 32, 4, 4, 0x02b5, 0x0007, -2, 2, 0x1000, epc5, 0, 0, 0, 0, 0, 0) +XTREG(71, 284, 32, 4, 4, 0x02b6, 0x0007, -2, 2, 0x1000, epc6, 0, 0, 0, 0, 0, 0) +XTREG(72, 288, 32, 4, 4, 0x02b7, 0x0007, -2, 2, 0x1000, epc7, 0, 0, 0, 0, 0, 0) +XTREG(73, 292, 32, 4, 4, 0x02c0, 0x0007, -2, 2, 0x1000, depc, 0, 0, 0, 0, 0, 0) +XTREG(74, 296, 19, 4, 4, 0x02c2, 0x0007, -2, 2, 0x1000, eps2, 0, 0, 0, 0, 0, 0) +XTREG(75, 300, 19, 4, 4, 0x02c3, 0x0007, -2, 2, 0x1000, eps3, 0, 0, 0, 0, 0, 0) +XTREG(76, 304, 19, 4, 4, 0x02c4, 0x0007, -2, 2, 0x1000, eps4, 0, 0, 0, 0, 0, 0) +XTREG(77, 308, 19, 4, 4, 0x02c5, 0x0007, -2, 2, 0x1000, eps5, 0, 0, 0, 0, 0, 0) +XTREG(78, 312, 19, 4, 4, 0x02c6, 0x0007, -2, 2, 0x1000, eps6, 0, 0, 0, 0, 0, 0) +XTREG(79, 316, 19, 4, 4, 0x02c7, 0x0007, -2, 2, 0x1000, eps7, 0, 0, 0, 0, 0, 0) +XTREG(80, 320, 32, 4, 4, 0x02d1, 0x0007, -2, 2, 0x1000, excsave1, 0, 0, 0, 0, 0, 0) +XTREG(81, 324, 32, 4, 4, 0x02d2, 0x0007, -2, 2, 0x1000, excsave2, 0, 0, 0, 0, 0, 0) +XTREG(82, 328, 32, 4, 4, 0x02d3, 0x0007, -2, 2, 0x1000, excsave3, 0, 0, 0, 0, 0, 0) +XTREG(83, 332, 32, 4, 4, 0x02d4, 0x0007, -2, 2, 0x1000, excsave4, 0, 0, 0, 0, 0, 0) +XTREG(84, 336, 32, 4, 4, 0x02d5, 0x0007, -2, 2, 0x1000, excsave5, 0, 0, 0, 0, 0, 0) +XTREG(85, 340, 32, 4, 4, 0x02d6, 0x0007, -2, 2, 0x1000, excsave6, 0, 0, 0, 0, 0, 0) +XTREG(86, 344, 32, 4, 4, 0x02d7, 0x0007, -2, 2, 0x1000, excsave7, 0, 0, 0, 0, 0, 0) +XTREG(87, 348, 8, 4, 4, 0x02e0, 0x0007, -2, 2, 0x1000, cpenable, 0, 0, 0, 0, 0, 0) +XTREG(88, 352, 22, 4, 4, 0x02e2, 0x000b, -2, 2, 0x1000, interrupt, 0, 0, 0, 0, 0, 0) +XTREG(89, 356, 22, 4, 4, 0x02e2, 0x000d, -2, 2, 0x1000, intset, 0, 0, 0, 0, 0, 0) +XTREG(90, 360, 22, 4, 4, 0x02e3, 0x000d, -2, 2, 0x1000, intclear, 0, 0, 0, 0, 0, 0) +XTREG(91, 364, 22, 4, 4, 0x02e4, 0x0007, -2, 2, 0x1000, intenable, 0, 0, 0, 0, 0, 0) +XTREG(92, 368, 32, 4, 4, 0x02e7, 0x0007, -2, 2, 0x1000, vecbase, 0, 0, 0, 0, 0, 0) +XTREG(93, 372, 6, 4, 4, 0x02e8, 0x0007, -2, 2, 0x1000, exccause, 0, 0, 0, 0, 0, 0) +XTREG(94, 376, 12, 4, 4, 0x02e9, 0x0003, -2, 2, 0x1000, debugcause, 0, 0, 0, 0, 0, 0) +XTREG(95, 380, 32, 4, 4, 0x02ea, 0x000f, -2, 2, 0x1000, ccount, 0, 0, 0, 0, 0, 0) +XTREG(96, 384, 32, 4, 4, 0x02eb, 0x0003, -2, 2, 0x1000, prid, 0, 0, 0, 0, 0, 0) +XTREG(97, 388, 32, 4, 4, 0x02ec, 0x000f, -2, 2, 0x1000, icount, 0, 0, 0, 0, 0, 0) +XTREG(98, 392, 4, 4, 4, 0x02ed, 0x0007, -2, 2, 0x1000, icountlevel, 0, 0, 0, 0, 0, 0) +XTREG(99, 396, 32, 4, 4, 0x02ee, 0x0007, -2, 2, 0x1000, excvaddr, 0, 0, 0, 0, 0, 0) +XTREG(100, 400, 32, 4, 4, 0x02f0, 0x000f, -2, 2, 0x1000, ccompare0, 0, 0, 0, 0, 0, 0) +XTREG(101, 404, 32, 4, 4, 0x02f1, 0x000f, -2, 2, 0x1000, ccompare1, 0, 0, 0, 0, 0, 0) +XTREG(102, 408, 32, 4, 4, 0x02f2, 0x000f, -2, 2, 0x1000, ccompare2, 0, 0, 0, 0, 0, 0) +XTREG(103, 412, 32, 4, 4, 0x02f4, 0x0007, -2, 2, 0x1000, misc0, 0, 0, 0, 0, 0, 0) +XTREG(104, 416, 32, 4, 4, 0x02f5, 0x0007, -2, 2, 0x1000, misc1, 0, 0, 0, 0, 0, 0) +XTREG(105, 420, 32, 4, 4, 0x0000, 0x0006, -2, 8, 0x0100, a0, 0, 0, 0, 0, 0, 0) +XTREG(106, 424, 32, 4, 4, 0x0001, 0x0006, -2, 8, 0x0100, a1, 0, 0, 0, 0, 0, 0) +XTREG(107, 428, 32, 4, 4, 0x0002, 0x0006, -2, 8, 0x0100, a2, 0, 0, 0, 0, 0, 0) +XTREG(108, 432, 32, 4, 4, 0x0003, 0x0006, -2, 8, 0x0100, a3, 0, 0, 0, 0, 0, 0) +XTREG(109, 436, 32, 4, 4, 0x0004, 0x0006, -2, 8, 0x0100, a4, 0, 0, 0, 0, 0, 0) +XTREG(110, 440, 32, 4, 4, 0x0005, 0x0006, -2, 8, 0x0100, a5, 0, 0, 0, 0, 0, 0) +XTREG(111, 444, 32, 4, 4, 0x0006, 0x0006, -2, 8, 0x0100, a6, 0, 0, 0, 0, 0, 0) +XTREG(112, 448, 32, 4, 4, 0x0007, 0x0006, -2, 8, 0x0100, a7, 0, 0, 0, 0, 0, 0) +XTREG(113, 452, 32, 4, 4, 0x0008, 0x0006, -2, 8, 0x0100, a8, 0, 0, 0, 0, 0, 0) +XTREG(114, 456, 32, 4, 4, 0x0009, 0x0006, -2, 8, 0x0100, a9, 0, 0, 0, 0, 0, 0) +XTREG(115, 460, 32, 4, 4, 0x000a, 0x0006, -2, 8, 0x0100, a10, 0, 0, 0, 0, 0, 0) +XTREG(116, 464, 32, 4, 4, 0x000b, 0x0006, -2, 8, 0x0100, a11, 0, 0, 0, 0, 0, 0) +XTREG(117, 468, 32, 4, 4, 0x000c, 0x0006, -2, 8, 0x0100, a12, 0, 0, 0, 0, 0, 0) +XTREG(118, 472, 32, 4, 4, 0x000d, 0x0006, -2, 8, 0x0100, a13, 0, 0, 0, 0, 0, 0) +XTREG(119, 476, 32, 4, 4, 0x000e, 0x0006, -2, 8, 0x0100, a14, 0, 0, 0, 0, 0, 0) +XTREG(120, 480, 32, 4, 4, 0x000f, 0x0006, -2, 8, 0x0100, a15, 0, 0, 0, 0, 0, 0) diff --git a/src/target-xtensa/core-fsf.c b/src/target-xtensa/core-fsf.c new file mode 100644 index 0000000..f6ea6b9 --- /dev/null +++ b/src/target-xtensa/core-fsf.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "cpu.h" +#include "exec/exec-all.h" +#include "exec/gdbstub.h" +#include "qemu/host-utils.h" + +#include "core-fsf/core-isa.h" +#include "overlay_tool.h" + +static XtensaConfig fsf __attribute__((unused)) = { + .name = "fsf", + .gdb_regmap = { + /* GDB for this core is not supported currently */ + .reg = { + XTREG_END + }, + }, + .clock_freq_khz = 10000, + DEFAULT_SECTIONS +}; + +REGISTER_CORE(fsf) diff --git a/src/target-xtensa/core-fsf/core-isa.h b/src/target-xtensa/core-fsf/core-isa.h new file mode 100644 index 0000000..b519d6c --- /dev/null +++ b/src/target-xtensa/core-fsf/core-isa.h @@ -0,0 +1,361 @@ +/* + * Xtensa processor core configuration information. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1999-2006 Tensilica Inc. + */ + +#ifndef _XTENSA_CORE_H +#define _XTENSA_CORE_H + + +/**************************************************************************** + Parameters Useful for Any Code, USER or PRIVILEGED + ****************************************************************************/ + +/* + * Note: Macros of the form XCHAL_HAVE_*** have a value of 1 if the option is + * configured, and a value of 0 otherwise. These macros are always defined. + */ + + +/*---------------------------------------------------------------------- + ISA + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_BE 1 /* big-endian byte ordering */ +#define XCHAL_HAVE_WINDOWED 1 /* windowed registers option */ +#define XCHAL_NUM_AREGS 64 /* num of physical addr regs */ +#define XCHAL_NUM_AREGS_LOG2 6 /* log2(XCHAL_NUM_AREGS) */ +#define XCHAL_MAX_INSTRUCTION_SIZE 3 /* max instr bytes (3..8) */ +#define XCHAL_HAVE_DEBUG 1 /* debug option */ +#define XCHAL_HAVE_DENSITY 1 /* 16-bit instructions */ +#define XCHAL_HAVE_LOOPS 1 /* zero-overhead loops */ +#define XCHAL_HAVE_NSA 1 /* NSA/NSAU instructions */ +#define XCHAL_HAVE_MINMAX 0 /* MIN/MAX instructions */ +#define XCHAL_HAVE_SEXT 0 /* SEXT instruction */ +#define XCHAL_HAVE_CLAMPS 0 /* CLAMPS instruction */ +#define XCHAL_HAVE_MUL16 0 /* MUL16S/MUL16U instructions */ +#define XCHAL_HAVE_MUL32 0 /* MULL instruction */ +#define XCHAL_HAVE_MUL32_HIGH 0 /* MULUH/MULSH instructions */ +#define XCHAL_HAVE_L32R 1 /* L32R instruction */ +#define XCHAL_HAVE_ABSOLUTE_LITERALS 1 /* non-PC-rel (extended) L32R */ +#define XCHAL_HAVE_CONST16 0 /* CONST16 instruction */ +#define XCHAL_HAVE_ADDX 1 /* ADDX#/SUBX# instructions */ +#define XCHAL_HAVE_WIDE_BRANCHES 0 /* B*.W18 or B*.W15 instr's */ +#define XCHAL_HAVE_PREDICTED_BRANCHES 0 /* B[EQ/EQZ/NE/NEZ]T instr's */ +#define XCHAL_HAVE_CALL4AND12 1 /* (obsolete option) */ +#define XCHAL_HAVE_ABS 1 /* ABS instruction */ +/*#define XCHAL_HAVE_POPC 0*/ /* POPC instruction */ +/*#define XCHAL_HAVE_CRC 0*/ /* CRC instruction */ +#define XCHAL_HAVE_RELEASE_SYNC 0 /* L32AI/S32RI instructions */ +#define XCHAL_HAVE_S32C1I 0 /* S32C1I instruction */ +#define XCHAL_HAVE_SPECULATION 0 /* speculation */ +#define XCHAL_HAVE_FULL_RESET 1 /* all regs/state reset */ +#define XCHAL_NUM_CONTEXTS 1 /* */ +#define XCHAL_NUM_MISC_REGS 2 /* num of scratch regs (0..4) */ +#define XCHAL_HAVE_TAP_MASTER 0 /* JTAG TAP control instr's */ +#define XCHAL_HAVE_PRID 1 /* processor ID register */ +#define XCHAL_HAVE_THREADPTR 1 /* THREADPTR register */ +#define XCHAL_HAVE_BOOLEANS 0 /* boolean registers */ +#define XCHAL_HAVE_CP 0 /* CPENABLE reg (coprocessor) */ +#define XCHAL_CP_MAXCFG 0 /* max allowed cp id plus one */ +#define XCHAL_HAVE_MAC16 0 /* MAC16 package */ +#define XCHAL_HAVE_VECTORFPU2005 0 /* vector floating-point pkg */ +#define XCHAL_HAVE_FP 0 /* floating point pkg */ +#define XCHAL_HAVE_VECTRA1 0 /* Vectra I pkg */ +#define XCHAL_HAVE_VECTRALX 0 /* Vectra LX pkg */ +#define XCHAL_HAVE_HIFI2 0 /* HiFi2 Audio Engine pkg */ + + +/*---------------------------------------------------------------------- + MISC + ----------------------------------------------------------------------*/ + +#define XCHAL_NUM_WRITEBUFFER_ENTRIES 4 /* size of write buffer */ +#define XCHAL_INST_FETCH_WIDTH 4 /* instr-fetch width in bytes */ +#define XCHAL_DATA_WIDTH 4 /* data width in bytes */ +/* In T1050, applies to selected core load and store instructions (see ISA): */ +#define XCHAL_UNALIGNED_LOAD_EXCEPTION 1 /* unaligned loads cause exc. */ +#define XCHAL_UNALIGNED_STORE_EXCEPTION 1 /* unaligned stores cause exc.*/ + +#define XCHAL_SW_VERSION 800002 /* sw version of this header */ + +#define XCHAL_CORE_ID "fsf" /* alphanum core name + (CoreID) set in the Xtensa + Processor Generator */ + +#define XCHAL_CORE_DESCRIPTION "fsf standard core" +#define XCHAL_BUILD_UNIQUE_ID 0x00006700 /* 22-bit sw build ID */ + +/* + * These definitions describe the hardware targeted by this software. + */ +#define XCHAL_HW_CONFIGID0 0xC103C3FF /* ConfigID hi 32 bits*/ +#define XCHAL_HW_CONFIGID1 0x0C006700 /* ConfigID lo 32 bits*/ +#define XCHAL_HW_VERSION_NAME "LX2.0.0" /* full version name */ +#define XCHAL_HW_VERSION_MAJOR 2200 /* major ver# of targeted hw */ +#define XCHAL_HW_VERSION_MINOR 0 /* minor ver# of targeted hw */ +#define XTHAL_HW_REL_LX2 1 +#define XTHAL_HW_REL_LX2_0 1 +#define XTHAL_HW_REL_LX2_0_0 1 +#define XCHAL_HW_CONFIGID_RELIABLE 1 +/* If software targets a *range* of hardware versions, these are the bounds: */ +#define XCHAL_HW_MIN_VERSION_MAJOR 2200 /* major v of earliest tgt hw */ +#define XCHAL_HW_MIN_VERSION_MINOR 0 /* minor v of earliest tgt hw */ +#define XCHAL_HW_MAX_VERSION_MAJOR 2200 /* major v of latest tgt hw */ +#define XCHAL_HW_MAX_VERSION_MINOR 0 /* minor v of latest tgt hw */ + + +/*---------------------------------------------------------------------- + CACHE + ----------------------------------------------------------------------*/ + +#define XCHAL_ICACHE_LINESIZE 16 /* I-cache line size in bytes */ +#define XCHAL_DCACHE_LINESIZE 16 /* D-cache line size in bytes */ +#define XCHAL_ICACHE_LINEWIDTH 4 /* log2(I line size in bytes) */ +#define XCHAL_DCACHE_LINEWIDTH 4 /* log2(D line size in bytes) */ + +#define XCHAL_ICACHE_SIZE 8192 /* I-cache size in bytes or 0 */ +#define XCHAL_DCACHE_SIZE 8192 /* D-cache size in bytes or 0 */ + +#define XCHAL_DCACHE_IS_WRITEBACK 0 /* writeback feature */ + + + + +/**************************************************************************** + Parameters Useful for PRIVILEGED (Supervisory or Non-Virtualized) Code + ****************************************************************************/ + + +#ifndef XTENSA_HAL_NON_PRIVILEGED_ONLY + +/*---------------------------------------------------------------------- + CACHE + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_PIF 1 /* any outbound PIF present */ + +/* If present, cache size in bytes == (ways * 2^(linewidth + setwidth)). */ + +/* Number of cache sets in log2(lines per way): */ +#define XCHAL_ICACHE_SETWIDTH 8 +#define XCHAL_DCACHE_SETWIDTH 8 + +/* Cache set associativity (number of ways): */ +#define XCHAL_ICACHE_WAYS 2 +#define XCHAL_DCACHE_WAYS 2 + +/* Cache features: */ +#define XCHAL_ICACHE_LINE_LOCKABLE 0 +#define XCHAL_DCACHE_LINE_LOCKABLE 0 +#define XCHAL_ICACHE_ECC_PARITY 0 +#define XCHAL_DCACHE_ECC_PARITY 0 + +/* Number of encoded cache attr bits (see <xtensa/hal.h> for decoded bits): */ +#define XCHAL_CA_BITS 4 + + +/*---------------------------------------------------------------------- + INTERNAL I/D RAM/ROMs and XLMI + ----------------------------------------------------------------------*/ + +#define XCHAL_NUM_INSTROM 0 /* number of core instr. ROMs */ +#define XCHAL_NUM_INSTRAM 0 /* number of core instr. RAMs */ +#define XCHAL_NUM_DATAROM 0 /* number of core data ROMs */ +#define XCHAL_NUM_DATARAM 0 /* number of core data RAMs */ +#define XCHAL_NUM_URAM 0 /* number of core unified RAMs*/ +#define XCHAL_NUM_XLMI 0 /* number of core XLMI ports */ + + +/*---------------------------------------------------------------------- + INTERRUPTS and TIMERS + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_INTERRUPTS 1 /* interrupt option */ +#define XCHAL_HAVE_HIGHPRI_INTERRUPTS 1 /* med/high-pri. interrupts */ +#define XCHAL_HAVE_NMI 0 /* non-maskable interrupt */ +#define XCHAL_HAVE_CCOUNT 1 /* CCOUNT reg. (timer option) */ +#define XCHAL_NUM_TIMERS 3 /* number of CCOMPAREn regs */ +#define XCHAL_NUM_INTERRUPTS 17 /* number of interrupts */ +#define XCHAL_NUM_INTERRUPTS_LOG2 5 /* ceil(log2(NUM_INTERRUPTS)) */ +#define XCHAL_NUM_EXTINTERRUPTS 10 /* num of external interrupts */ +#define XCHAL_NUM_INTLEVELS 4 /* number of interrupt levels + (not including level zero) */ +#define XCHAL_EXCM_LEVEL 1 /* level masked by PS.EXCM */ + /* (always 1 in XEA1; levels 2 .. EXCM_LEVEL are "medium priority") */ + +/* Masks of interrupts at each interrupt level: */ +#define XCHAL_INTLEVEL1_MASK 0x000064F9 +#define XCHAL_INTLEVEL2_MASK 0x00008902 +#define XCHAL_INTLEVEL3_MASK 0x00011204 +#define XCHAL_INTLEVEL4_MASK 0x00000000 +#define XCHAL_INTLEVEL5_MASK 0x00000000 +#define XCHAL_INTLEVEL6_MASK 0x00000000 +#define XCHAL_INTLEVEL7_MASK 0x00000000 + +/* Masks of interrupts at each range 1..n of interrupt levels: */ +#define XCHAL_INTLEVEL1_ANDBELOW_MASK 0x000064F9 +#define XCHAL_INTLEVEL2_ANDBELOW_MASK 0x0000EDFB +#define XCHAL_INTLEVEL3_ANDBELOW_MASK 0x0001FFFF +#define XCHAL_INTLEVEL4_ANDBELOW_MASK 0x0001FFFF +#define XCHAL_INTLEVEL5_ANDBELOW_MASK 0x0001FFFF +#define XCHAL_INTLEVEL6_ANDBELOW_MASK 0x0001FFFF +#define XCHAL_INTLEVEL7_ANDBELOW_MASK 0x0001FFFF + +/* Level of each interrupt: */ +#define XCHAL_INT0_LEVEL 1 +#define XCHAL_INT1_LEVEL 2 +#define XCHAL_INT2_LEVEL 3 +#define XCHAL_INT3_LEVEL 1 +#define XCHAL_INT4_LEVEL 1 +#define XCHAL_INT5_LEVEL 1 +#define XCHAL_INT6_LEVEL 1 +#define XCHAL_INT7_LEVEL 1 +#define XCHAL_INT8_LEVEL 2 +#define XCHAL_INT9_LEVEL 3 +#define XCHAL_INT10_LEVEL 1 +#define XCHAL_INT11_LEVEL 2 +#define XCHAL_INT12_LEVEL 3 +#define XCHAL_INT13_LEVEL 1 +#define XCHAL_INT14_LEVEL 1 +#define XCHAL_INT15_LEVEL 2 +#define XCHAL_INT16_LEVEL 3 +#define XCHAL_DEBUGLEVEL 4 /* debug interrupt level */ +#define XCHAL_HAVE_DEBUG_EXTERN_INT 0 /* OCD external db interrupt */ + +/* Type of each interrupt: */ +#define XCHAL_INT0_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT1_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT2_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT3_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT4_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT5_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT6_TYPE XTHAL_INTTYPE_EXTERN_LEVEL +#define XCHAL_INT7_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT8_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT9_TYPE XTHAL_INTTYPE_EXTERN_EDGE +#define XCHAL_INT10_TYPE XTHAL_INTTYPE_TIMER +#define XCHAL_INT11_TYPE XTHAL_INTTYPE_TIMER +#define XCHAL_INT12_TYPE XTHAL_INTTYPE_TIMER +#define XCHAL_INT13_TYPE XTHAL_INTTYPE_SOFTWARE +#define XCHAL_INT14_TYPE XTHAL_INTTYPE_SOFTWARE +#define XCHAL_INT15_TYPE XTHAL_INTTYPE_SOFTWARE +#define XCHAL_INT16_TYPE XTHAL_INTTYPE_SOFTWARE + +/* Masks of interrupts for each type of interrupt: */ +#define XCHAL_INTTYPE_MASK_UNCONFIGURED 0xFFFE0000 +#define XCHAL_INTTYPE_MASK_SOFTWARE 0x0001E000 +#define XCHAL_INTTYPE_MASK_EXTERN_EDGE 0x00000380 +#define XCHAL_INTTYPE_MASK_EXTERN_LEVEL 0x0000007F +#define XCHAL_INTTYPE_MASK_TIMER 0x00001C00 +#define XCHAL_INTTYPE_MASK_NMI 0x00000000 +#define XCHAL_INTTYPE_MASK_WRITE_ERROR 0x00000000 + +/* Interrupt numbers assigned to specific interrupt sources: */ +#define XCHAL_TIMER0_INTERRUPT 10 /* CCOMPARE0 */ +#define XCHAL_TIMER1_INTERRUPT 11 /* CCOMPARE1 */ +#define XCHAL_TIMER2_INTERRUPT 12 /* CCOMPARE2 */ +#define XCHAL_TIMER3_INTERRUPT XTHAL_TIMER_UNCONFIGURED + +/* Interrupt numbers for levels at which only one interrupt is configured: */ +/* (There are many interrupts each at level(s) 1, 2, 3.) */ + + +/* + * External interrupt vectors/levels. + * These macros describe how Xtensa processor interrupt numbers + * (as numbered internally, eg. in INTERRUPT and INTENABLE registers) + * map to external BInterrupt<n> pins, for those interrupts + * configured as external (level-triggered, edge-triggered, or NMI). + * See the Xtensa processor databook for more details. + */ + +/* Core interrupt numbers mapped to each EXTERNAL interrupt number: */ +#define XCHAL_EXTINT0_NUM 0 /* (intlevel 1) */ +#define XCHAL_EXTINT1_NUM 1 /* (intlevel 2) */ +#define XCHAL_EXTINT2_NUM 2 /* (intlevel 3) */ +#define XCHAL_EXTINT3_NUM 3 /* (intlevel 1) */ +#define XCHAL_EXTINT4_NUM 4 /* (intlevel 1) */ +#define XCHAL_EXTINT5_NUM 5 /* (intlevel 1) */ +#define XCHAL_EXTINT6_NUM 6 /* (intlevel 1) */ +#define XCHAL_EXTINT7_NUM 7 /* (intlevel 1) */ +#define XCHAL_EXTINT8_NUM 8 /* (intlevel 2) */ +#define XCHAL_EXTINT9_NUM 9 /* (intlevel 3) */ + + +/*---------------------------------------------------------------------- + EXCEPTIONS and VECTORS + ----------------------------------------------------------------------*/ + +#define XCHAL_XEA_VERSION 2 /* Xtensa Exception Architecture + number: 1 == XEA1 (old) + 2 == XEA2 (new) + 0 == XEAX (extern) */ +#define XCHAL_HAVE_XEA1 0 /* Exception Architecture 1 */ +#define XCHAL_HAVE_XEA2 1 /* Exception Architecture 2 */ +#define XCHAL_HAVE_XEAX 0 /* External Exception Arch. */ +#define XCHAL_HAVE_EXCEPTIONS 1 /* exception option */ +#define XCHAL_HAVE_MEM_ECC_PARITY 0 /* local memory ECC/parity */ + +#define XCHAL_RESET_VECTOR_VADDR 0xFE000020 +#define XCHAL_RESET_VECTOR_PADDR 0xFE000020 +#define XCHAL_USER_VECTOR_VADDR 0xD0000220 +#define XCHAL_USER_VECTOR_PADDR 0x00000220 +#define XCHAL_KERNEL_VECTOR_VADDR 0xD0000200 +#define XCHAL_KERNEL_VECTOR_PADDR 0x00000200 +#define XCHAL_DOUBLEEXC_VECTOR_VADDR 0xD0000290 +#define XCHAL_DOUBLEEXC_VECTOR_PADDR 0x00000290 +#define XCHAL_WINDOW_VECTORS_VADDR 0xD0000000 +#define XCHAL_WINDOW_VECTORS_PADDR 0x00000000 +#define XCHAL_INTLEVEL2_VECTOR_VADDR 0xD0000240 +#define XCHAL_INTLEVEL2_VECTOR_PADDR 0x00000240 +#define XCHAL_INTLEVEL3_VECTOR_VADDR 0xD0000250 +#define XCHAL_INTLEVEL3_VECTOR_PADDR 0x00000250 +#define XCHAL_INTLEVEL4_VECTOR_VADDR 0xFE000520 +#define XCHAL_INTLEVEL4_VECTOR_PADDR 0xFE000520 +#define XCHAL_DEBUG_VECTOR_VADDR XCHAL_INTLEVEL4_VECTOR_VADDR +#define XCHAL_DEBUG_VECTOR_PADDR XCHAL_INTLEVEL4_VECTOR_PADDR + + +/*---------------------------------------------------------------------- + DEBUG + ----------------------------------------------------------------------*/ + +#define XCHAL_HAVE_OCD 1 /* OnChipDebug option */ +#define XCHAL_NUM_IBREAK 2 /* number of IBREAKn regs */ +#define XCHAL_NUM_DBREAK 2 /* number of DBREAKn regs */ +#define XCHAL_HAVE_OCD_DIR_ARRAY 1 /* faster OCD option */ + + +/*---------------------------------------------------------------------- + MMU + ----------------------------------------------------------------------*/ + +/* See <xtensa/config/core-matmap.h> header file for more details. */ + +#define XCHAL_HAVE_TLBS 1 /* inverse of HAVE_CACHEATTR */ +#define XCHAL_HAVE_SPANNING_WAY 0 /* one way maps I+D 4GB vaddr */ +#define XCHAL_HAVE_IDENTITY_MAP 0 /* vaddr == paddr always */ +#define XCHAL_HAVE_CACHEATTR 0 /* CACHEATTR register present */ +#define XCHAL_HAVE_MIMIC_CACHEATTR 0 /* region protection */ +#define XCHAL_HAVE_XLT_CACHEATTR 0 /* region prot. w/translation */ +#define XCHAL_HAVE_PTP_MMU 1 /* full MMU (with page table + [autorefill] and protection) + usable for an MMU-based OS */ +/* If none of the above last 4 are set, it's a custom TLB configuration. */ +#define XCHAL_ITLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */ +#define XCHAL_DTLB_ARF_ENTRIES_LOG2 2 /* log2(autorefill way size) */ + +#define XCHAL_MMU_ASID_BITS 8 /* number of bits in ASIDs */ +#define XCHAL_MMU_RINGS 4 /* number of rings (1..4) */ +#define XCHAL_MMU_RING_BITS 2 /* num of bits in RING field */ + +#endif /* !XTENSA_HAL_NON_PRIVILEGED_ONLY */ + + +#endif /* _XTENSA_CORE_CONFIGURATION_H */ diff --git a/src/target-xtensa/cpu-qom.h b/src/target-xtensa/cpu-qom.h new file mode 100644 index 0000000..2258224 --- /dev/null +++ b/src/target-xtensa/cpu-qom.h @@ -0,0 +1,99 @@ +/* + * QEMU Xtensa CPU + * + * Copyright (c) 2012 SUSE LINUX Products GmbH + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef QEMU_XTENSA_CPU_QOM_H +#define QEMU_XTENSA_CPU_QOM_H + +#include "qom/cpu.h" +#include "cpu.h" + +#define TYPE_XTENSA_CPU "xtensa-cpu" + +#define XTENSA_CPU_CLASS(class) \ + OBJECT_CLASS_CHECK(XtensaCPUClass, (class), TYPE_XTENSA_CPU) +#define XTENSA_CPU(obj) \ + OBJECT_CHECK(XtensaCPU, (obj), TYPE_XTENSA_CPU) +#define XTENSA_CPU_GET_CLASS(obj) \ + OBJECT_GET_CLASS(XtensaCPUClass, (obj), TYPE_XTENSA_CPU) + +/** + * XtensaCPUClass: + * @parent_realize: The parent class' realize handler. + * @parent_reset: The parent class' reset handler. + * @config: The CPU core configuration. + * + * An Xtensa CPU model. + */ +typedef struct XtensaCPUClass { + /*< private >*/ + CPUClass parent_class; + /*< public >*/ + + DeviceRealize parent_realize; + void (*parent_reset)(CPUState *cpu); + + const XtensaConfig *config; +} XtensaCPUClass; + +/** + * XtensaCPU: + * @env: #CPUXtensaState + * + * An Xtensa CPU. + */ +typedef struct XtensaCPU { + /*< private >*/ + CPUState parent_obj; + /*< public >*/ + + CPUXtensaState env; +} XtensaCPU; + +static inline XtensaCPU *xtensa_env_get_cpu(const CPUXtensaState *env) +{ + return container_of(env, XtensaCPU, env); +} + +#define ENV_GET_CPU(e) CPU(xtensa_env_get_cpu(e)) + +#define ENV_OFFSET offsetof(XtensaCPU, env) + +void xtensa_cpu_do_interrupt(CPUState *cpu); +bool xtensa_cpu_exec_interrupt(CPUState *cpu, int interrupt_request); +void xtensa_cpu_do_unassigned_access(CPUState *cpu, hwaddr addr, + bool is_write, bool is_exec, int opaque, + unsigned size); +void xtensa_cpu_dump_state(CPUState *cpu, FILE *f, + fprintf_function cpu_fprintf, int flags); +hwaddr xtensa_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); +int xtensa_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg); +int xtensa_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); +void xtensa_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, + int is_write, int is_user, uintptr_t retaddr); + +#endif diff --git a/src/target-xtensa/cpu.c b/src/target-xtensa/cpu.c new file mode 100644 index 0000000..4e49bee --- /dev/null +++ b/src/target-xtensa/cpu.c @@ -0,0 +1,182 @@ +/* + * QEMU Xtensa CPU + * + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * Copyright (c) 2012 SUSE LINUX Products GmbH + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "cpu.h" +#include "qemu-common.h" +#include "migration/vmstate.h" + + +static void xtensa_cpu_set_pc(CPUState *cs, vaddr value) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + + cpu->env.pc = value; +} + +static bool xtensa_cpu_has_work(CPUState *cs) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + + return cpu->env.pending_irq_level; +} + +/* CPUClass::reset() */ +static void xtensa_cpu_reset(CPUState *s) +{ + XtensaCPU *cpu = XTENSA_CPU(s); + XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(cpu); + CPUXtensaState *env = &cpu->env; + + xcc->parent_reset(s); + + env->exception_taken = 0; + env->pc = env->config->exception_vector[EXC_RESET]; + env->sregs[LITBASE] &= ~1; + env->sregs[PS] = xtensa_option_enabled(env->config, + XTENSA_OPTION_INTERRUPT) ? 0x1f : 0x10; + env->sregs[VECBASE] = env->config->vecbase; + env->sregs[IBREAKENABLE] = 0; + env->sregs[CACHEATTR] = 0x22222222; + env->sregs[ATOMCTL] = xtensa_option_enabled(env->config, + XTENSA_OPTION_ATOMCTL) ? 0x28 : 0x15; + env->sregs[CONFIGID0] = env->config->configid[0]; + env->sregs[CONFIGID1] = env->config->configid[1]; + + env->pending_irq_level = 0; + reset_mmu(env); +} + +static ObjectClass *xtensa_cpu_class_by_name(const char *cpu_model) +{ + ObjectClass *oc; + char *typename; + + if (cpu_model == NULL) { + return NULL; + } + + typename = g_strdup_printf("%s-" TYPE_XTENSA_CPU, cpu_model); + oc = object_class_by_name(typename); + g_free(typename); + if (oc == NULL || !object_class_dynamic_cast(oc, TYPE_XTENSA_CPU) || + object_class_is_abstract(oc)) { + return NULL; + } + return oc; +} + +static void xtensa_cpu_realizefn(DeviceState *dev, Error **errp) +{ + CPUState *cs = CPU(dev); + XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(dev); + + cs->gdb_num_regs = xcc->config->gdb_regmap.num_regs; + + qemu_init_vcpu(cs); + + xcc->parent_realize(dev, errp); +} + +static void xtensa_cpu_initfn(Object *obj) +{ + CPUState *cs = CPU(obj); + XtensaCPU *cpu = XTENSA_CPU(obj); + XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(obj); + CPUXtensaState *env = &cpu->env; + static bool tcg_inited; + + cs->env_ptr = env; + env->config = xcc->config; + cpu_exec_init(cs, &error_abort); + + if (tcg_enabled() && !tcg_inited) { + tcg_inited = true; + xtensa_translate_init(); + } +} + +static const VMStateDescription vmstate_xtensa_cpu = { + .name = "cpu", + .unmigratable = 1, +}; + +static void xtensa_cpu_class_init(ObjectClass *oc, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(oc); + CPUClass *cc = CPU_CLASS(oc); + XtensaCPUClass *xcc = XTENSA_CPU_CLASS(cc); + + xcc->parent_realize = dc->realize; + dc->realize = xtensa_cpu_realizefn; + + xcc->parent_reset = cc->reset; + cc->reset = xtensa_cpu_reset; + + cc->class_by_name = xtensa_cpu_class_by_name; + cc->has_work = xtensa_cpu_has_work; + cc->do_interrupt = xtensa_cpu_do_interrupt; + cc->cpu_exec_interrupt = xtensa_cpu_exec_interrupt; + cc->dump_state = xtensa_cpu_dump_state; + cc->set_pc = xtensa_cpu_set_pc; + cc->gdb_read_register = xtensa_cpu_gdb_read_register; + cc->gdb_write_register = xtensa_cpu_gdb_write_register; + cc->gdb_stop_before_watchpoint = true; +#ifndef CONFIG_USER_ONLY + cc->do_unaligned_access = xtensa_cpu_do_unaligned_access; + cc->get_phys_page_debug = xtensa_cpu_get_phys_page_debug; + cc->do_unassigned_access = xtensa_cpu_do_unassigned_access; +#endif + cc->debug_excp_handler = xtensa_breakpoint_handler; + dc->vmsd = &vmstate_xtensa_cpu; + + /* + * Reason: xtensa_cpu_initfn() calls cpu_exec_init(), which saves + * the object in cpus -> dangling pointer after final + * object_unref(). + */ + dc->cannot_destroy_with_object_finalize_yet = true; +} + +static const TypeInfo xtensa_cpu_type_info = { + .name = TYPE_XTENSA_CPU, + .parent = TYPE_CPU, + .instance_size = sizeof(XtensaCPU), + .instance_init = xtensa_cpu_initfn, + .abstract = true, + .class_size = sizeof(XtensaCPUClass), + .class_init = xtensa_cpu_class_init, +}; + +static void xtensa_cpu_register_types(void) +{ + type_register_static(&xtensa_cpu_type_info); +} + +type_init(xtensa_cpu_register_types) diff --git a/src/target-xtensa/cpu.h b/src/target-xtensa/cpu.h new file mode 100644 index 0000000..15ce010 --- /dev/null +++ b/src/target-xtensa/cpu.h @@ -0,0 +1,555 @@ +/* + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef CPU_XTENSA_H +#define CPU_XTENSA_H + +#define ALIGNED_ONLY +#define TARGET_LONG_BITS 32 + +#define CPUArchState struct CPUXtensaState + +#include "config.h" +#include "qemu-common.h" +#include "exec/cpu-defs.h" +#include "fpu/softfloat.h" + +#define NB_MMU_MODES 4 + +#define TARGET_PHYS_ADDR_SPACE_BITS 32 +#define TARGET_VIRT_ADDR_SPACE_BITS 32 +#define TARGET_PAGE_BITS 12 + +enum { + /* Additional instructions */ + XTENSA_OPTION_CODE_DENSITY, + XTENSA_OPTION_LOOP, + XTENSA_OPTION_EXTENDED_L32R, + XTENSA_OPTION_16_BIT_IMUL, + XTENSA_OPTION_32_BIT_IMUL, + XTENSA_OPTION_32_BIT_IMUL_HIGH, + XTENSA_OPTION_32_BIT_IDIV, + XTENSA_OPTION_MAC16, + XTENSA_OPTION_MISC_OP_NSA, + XTENSA_OPTION_MISC_OP_MINMAX, + XTENSA_OPTION_MISC_OP_SEXT, + XTENSA_OPTION_MISC_OP_CLAMPS, + XTENSA_OPTION_COPROCESSOR, + XTENSA_OPTION_BOOLEAN, + XTENSA_OPTION_FP_COPROCESSOR, + XTENSA_OPTION_MP_SYNCHRO, + XTENSA_OPTION_CONDITIONAL_STORE, + XTENSA_OPTION_ATOMCTL, + XTENSA_OPTION_DEPBITS, + + /* Interrupts and exceptions */ + XTENSA_OPTION_EXCEPTION, + XTENSA_OPTION_RELOCATABLE_VECTOR, + XTENSA_OPTION_UNALIGNED_EXCEPTION, + XTENSA_OPTION_INTERRUPT, + XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT, + XTENSA_OPTION_TIMER_INTERRUPT, + + /* Local memory */ + XTENSA_OPTION_ICACHE, + XTENSA_OPTION_ICACHE_TEST, + XTENSA_OPTION_ICACHE_INDEX_LOCK, + XTENSA_OPTION_DCACHE, + XTENSA_OPTION_DCACHE_TEST, + XTENSA_OPTION_DCACHE_INDEX_LOCK, + XTENSA_OPTION_IRAM, + XTENSA_OPTION_IROM, + XTENSA_OPTION_DRAM, + XTENSA_OPTION_DROM, + XTENSA_OPTION_XLMI, + XTENSA_OPTION_HW_ALIGNMENT, + XTENSA_OPTION_MEMORY_ECC_PARITY, + + /* Memory protection and translation */ + XTENSA_OPTION_REGION_PROTECTION, + XTENSA_OPTION_REGION_TRANSLATION, + XTENSA_OPTION_MMU, + XTENSA_OPTION_CACHEATTR, + + /* Other */ + XTENSA_OPTION_WINDOWED_REGISTER, + XTENSA_OPTION_PROCESSOR_INTERFACE, + XTENSA_OPTION_MISC_SR, + XTENSA_OPTION_THREAD_POINTER, + XTENSA_OPTION_PROCESSOR_ID, + XTENSA_OPTION_DEBUG, + XTENSA_OPTION_TRACE_PORT, +}; + +enum { + THREADPTR = 231, + FCR = 232, + FSR = 233, +}; + +enum { + LBEG = 0, + LEND = 1, + LCOUNT = 2, + SAR = 3, + BR = 4, + LITBASE = 5, + SCOMPARE1 = 12, + ACCLO = 16, + ACCHI = 17, + MR = 32, + WINDOW_BASE = 72, + WINDOW_START = 73, + PTEVADDR = 83, + RASID = 90, + ITLBCFG = 91, + DTLBCFG = 92, + IBREAKENABLE = 96, + CACHEATTR = 98, + ATOMCTL = 99, + IBREAKA = 128, + DBREAKA = 144, + DBREAKC = 160, + CONFIGID0 = 176, + EPC1 = 177, + DEPC = 192, + EPS2 = 194, + CONFIGID1 = 208, + EXCSAVE1 = 209, + CPENABLE = 224, + INTSET = 226, + INTCLEAR = 227, + INTENABLE = 228, + PS = 230, + VECBASE = 231, + EXCCAUSE = 232, + DEBUGCAUSE = 233, + CCOUNT = 234, + PRID = 235, + ICOUNT = 236, + ICOUNTLEVEL = 237, + EXCVADDR = 238, + CCOMPARE = 240, + MISC = 244, +}; + +#define PS_INTLEVEL 0xf +#define PS_INTLEVEL_SHIFT 0 + +#define PS_EXCM 0x10 +#define PS_UM 0x20 + +#define PS_RING 0xc0 +#define PS_RING_SHIFT 6 + +#define PS_OWB 0xf00 +#define PS_OWB_SHIFT 8 + +#define PS_CALLINC 0x30000 +#define PS_CALLINC_SHIFT 16 +#define PS_CALLINC_LEN 2 + +#define PS_WOE 0x40000 + +#define DEBUGCAUSE_IC 0x1 +#define DEBUGCAUSE_IB 0x2 +#define DEBUGCAUSE_DB 0x4 +#define DEBUGCAUSE_BI 0x8 +#define DEBUGCAUSE_BN 0x10 +#define DEBUGCAUSE_DI 0x20 +#define DEBUGCAUSE_DBNUM 0xf00 +#define DEBUGCAUSE_DBNUM_SHIFT 8 + +#define DBREAKC_SB 0x80000000 +#define DBREAKC_LB 0x40000000 +#define DBREAKC_SB_LB (DBREAKC_SB | DBREAKC_LB) +#define DBREAKC_MASK 0x3f + +#define MAX_NAREG 64 +#define MAX_NINTERRUPT 32 +#define MAX_NLEVEL 6 +#define MAX_NNMI 1 +#define MAX_NCCOMPARE 3 +#define MAX_TLB_WAY_SIZE 8 +#define MAX_NDBREAK 2 + +#define REGION_PAGE_MASK 0xe0000000 + +#define PAGE_CACHE_MASK 0x700 +#define PAGE_CACHE_SHIFT 8 +#define PAGE_CACHE_INVALID 0x000 +#define PAGE_CACHE_BYPASS 0x100 +#define PAGE_CACHE_WT 0x200 +#define PAGE_CACHE_WB 0x400 +#define PAGE_CACHE_ISOLATE 0x600 + +enum { + /* Static vectors */ + EXC_RESET, + EXC_MEMORY_ERROR, + + /* Dynamic vectors */ + EXC_WINDOW_OVERFLOW4, + EXC_WINDOW_UNDERFLOW4, + EXC_WINDOW_OVERFLOW8, + EXC_WINDOW_UNDERFLOW8, + EXC_WINDOW_OVERFLOW12, + EXC_WINDOW_UNDERFLOW12, + EXC_IRQ, + EXC_KERNEL, + EXC_USER, + EXC_DOUBLE, + EXC_DEBUG, + EXC_MAX +}; + +enum { + ILLEGAL_INSTRUCTION_CAUSE = 0, + SYSCALL_CAUSE, + INSTRUCTION_FETCH_ERROR_CAUSE, + LOAD_STORE_ERROR_CAUSE, + LEVEL1_INTERRUPT_CAUSE, + ALLOCA_CAUSE, + INTEGER_DIVIDE_BY_ZERO_CAUSE, + PRIVILEGED_CAUSE = 8, + LOAD_STORE_ALIGNMENT_CAUSE, + + INSTR_PIF_DATA_ERROR_CAUSE = 12, + LOAD_STORE_PIF_DATA_ERROR_CAUSE, + INSTR_PIF_ADDR_ERROR_CAUSE, + LOAD_STORE_PIF_ADDR_ERROR_CAUSE, + + INST_TLB_MISS_CAUSE, + INST_TLB_MULTI_HIT_CAUSE, + INST_FETCH_PRIVILEGE_CAUSE, + INST_FETCH_PROHIBITED_CAUSE = 20, + LOAD_STORE_TLB_MISS_CAUSE = 24, + LOAD_STORE_TLB_MULTI_HIT_CAUSE, + LOAD_STORE_PRIVILEGE_CAUSE, + LOAD_PROHIBITED_CAUSE = 28, + STORE_PROHIBITED_CAUSE, + + COPROCESSOR0_DISABLED = 32, +}; + +typedef enum { + INTTYPE_LEVEL, + INTTYPE_EDGE, + INTTYPE_NMI, + INTTYPE_SOFTWARE, + INTTYPE_TIMER, + INTTYPE_DEBUG, + INTTYPE_WRITE_ERR, + INTTYPE_PROFILING, + INTTYPE_MAX +} interrupt_type; + +typedef struct xtensa_tlb_entry { + uint32_t vaddr; + uint32_t paddr; + uint8_t asid; + uint8_t attr; + bool variable; +} xtensa_tlb_entry; + +typedef struct xtensa_tlb { + unsigned nways; + const unsigned way_size[10]; + bool varway56; + unsigned nrefillentries; +} xtensa_tlb; + +typedef struct XtensaGdbReg { + int targno; + int type; + int group; + unsigned size; +} XtensaGdbReg; + +typedef struct XtensaGdbRegmap { + int num_regs; + int num_core_regs; + /* PC + a + ar + sr + ur */ + XtensaGdbReg reg[1 + 16 + 64 + 256 + 256]; +} XtensaGdbRegmap; + +typedef struct XtensaConfig { + const char *name; + uint64_t options; + XtensaGdbRegmap gdb_regmap; + unsigned nareg; + int excm_level; + int ndepc; + uint32_t vecbase; + uint32_t exception_vector[EXC_MAX]; + unsigned ninterrupt; + unsigned nlevel; + uint32_t interrupt_vector[MAX_NLEVEL + MAX_NNMI + 1]; + uint32_t level_mask[MAX_NLEVEL + MAX_NNMI + 1]; + uint32_t inttype_mask[INTTYPE_MAX]; + struct { + uint32_t level; + interrupt_type inttype; + } interrupt[MAX_NINTERRUPT]; + unsigned nccompare; + uint32_t timerint[MAX_NCCOMPARE]; + unsigned nextint; + unsigned extint[MAX_NINTERRUPT]; + + unsigned debug_level; + unsigned nibreak; + unsigned ndbreak; + + uint32_t configid[2]; + + uint32_t clock_freq_khz; + + xtensa_tlb itlb; + xtensa_tlb dtlb; +} XtensaConfig; + +typedef struct XtensaConfigList { + const XtensaConfig *config; + struct XtensaConfigList *next; +} XtensaConfigList; + +#ifdef HOST_WORDS_BIGENDIAN +enum { + FP_F32_HIGH, + FP_F32_LOW, +}; +#else +enum { + FP_F32_LOW, + FP_F32_HIGH, +}; +#endif + +typedef struct CPUXtensaState { + const XtensaConfig *config; + uint32_t regs[16]; + uint32_t pc; + uint32_t sregs[256]; + uint32_t uregs[256]; + uint32_t phys_regs[MAX_NAREG]; + union { + float32 f32[2]; + float64 f64; + } fregs[16]; + float_status fp_status; + + xtensa_tlb_entry itlb[7][MAX_TLB_WAY_SIZE]; + xtensa_tlb_entry dtlb[10][MAX_TLB_WAY_SIZE]; + unsigned autorefill_idx; + + int pending_irq_level; /* level of last raised IRQ */ + void **irq_inputs; + QEMUTimer *ccompare_timer; + uint32_t wake_ccount; + int64_t halt_clock; + + int exception_taken; + + /* Watchpoints for DBREAK registers */ + struct CPUWatchpoint *cpu_watchpoint[MAX_NDBREAK]; + + CPU_COMMON +} CPUXtensaState; + +#include "cpu-qom.h" + +#define cpu_exec cpu_xtensa_exec +#define cpu_signal_handler cpu_xtensa_signal_handler +#define cpu_list xtensa_cpu_list + +#ifdef TARGET_WORDS_BIGENDIAN +#define XTENSA_DEFAULT_CPU_MODEL "fsf" +#else +#define XTENSA_DEFAULT_CPU_MODEL "dc232b" +#endif + +XtensaCPU *cpu_xtensa_init(const char *cpu_model); + +#define cpu_init(cpu_model) CPU(cpu_xtensa_init(cpu_model)) + +void xtensa_translate_init(void); +void xtensa_breakpoint_handler(CPUState *cs); +int cpu_xtensa_exec(CPUState *cpu); +void xtensa_finalize_config(XtensaConfig *config); +void xtensa_register_core(XtensaConfigList *node); +void check_interrupts(CPUXtensaState *s); +void xtensa_irq_init(CPUXtensaState *env); +void *xtensa_get_extint(CPUXtensaState *env, unsigned extint); +void xtensa_advance_ccount(CPUXtensaState *env, uint32_t d); +void xtensa_timer_irq(CPUXtensaState *env, uint32_t id, uint32_t active); +void xtensa_rearm_ccompare_timer(CPUXtensaState *env); +int cpu_xtensa_signal_handler(int host_signum, void *pinfo, void *puc); +void xtensa_cpu_list(FILE *f, fprintf_function cpu_fprintf); +void xtensa_sync_window_from_phys(CPUXtensaState *env); +void xtensa_sync_phys_from_window(CPUXtensaState *env); +uint32_t xtensa_tlb_get_addr_mask(const CPUXtensaState *env, bool dtlb, uint32_t way); +void split_tlb_entry_spec_way(const CPUXtensaState *env, uint32_t v, bool dtlb, + uint32_t *vpn, uint32_t wi, uint32_t *ei); +int xtensa_tlb_lookup(const CPUXtensaState *env, uint32_t addr, bool dtlb, + uint32_t *pwi, uint32_t *pei, uint8_t *pring); +void xtensa_tlb_set_entry_mmu(const CPUXtensaState *env, + xtensa_tlb_entry *entry, bool dtlb, + unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte); +void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb, + unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte); +int xtensa_get_physical_addr(CPUXtensaState *env, bool update_tlb, + uint32_t vaddr, int is_write, int mmu_idx, + uint32_t *paddr, uint32_t *page_size, unsigned *access); +void reset_mmu(CPUXtensaState *env); +void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUXtensaState *env); +void debug_exception_env(CPUXtensaState *new_env, uint32_t cause); + + +#define XTENSA_OPTION_BIT(opt) (((uint64_t)1) << (opt)) +#define XTENSA_OPTION_ALL (~(uint64_t)0) + +static inline bool xtensa_option_bits_enabled(const XtensaConfig *config, + uint64_t opt) +{ + return (config->options & opt) != 0; +} + +static inline bool xtensa_option_enabled(const XtensaConfig *config, int opt) +{ + return xtensa_option_bits_enabled(config, XTENSA_OPTION_BIT(opt)); +} + +static inline int xtensa_get_cintlevel(const CPUXtensaState *env) +{ + int level = (env->sregs[PS] & PS_INTLEVEL) >> PS_INTLEVEL_SHIFT; + if ((env->sregs[PS] & PS_EXCM) && env->config->excm_level > level) { + level = env->config->excm_level; + } + return level; +} + +static inline int xtensa_get_ring(const CPUXtensaState *env) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + return (env->sregs[PS] & PS_RING) >> PS_RING_SHIFT; + } else { + return 0; + } +} + +static inline int xtensa_get_cring(const CPUXtensaState *env) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU) && + (env->sregs[PS] & PS_EXCM) == 0) { + return (env->sregs[PS] & PS_RING) >> PS_RING_SHIFT; + } else { + return 0; + } +} + +static inline xtensa_tlb_entry *xtensa_tlb_get_entry(CPUXtensaState *env, + bool dtlb, unsigned wi, unsigned ei) +{ + return dtlb ? + env->dtlb[wi] + ei : + env->itlb[wi] + ei; +} + +static inline uint32_t xtensa_replicate_windowstart(CPUXtensaState *env) +{ + return env->sregs[WINDOW_START] | + (env->sregs[WINDOW_START] << env->config->nareg / 4); +} + +/* MMU modes definitions */ +#define MMU_MODE0_SUFFIX _ring0 +#define MMU_MODE1_SUFFIX _ring1 +#define MMU_MODE2_SUFFIX _ring2 +#define MMU_MODE3_SUFFIX _ring3 + +static inline int cpu_mmu_index(CPUXtensaState *env, bool ifetch) +{ + return xtensa_get_cring(env); +} + +#define XTENSA_TBFLAG_RING_MASK 0x3 +#define XTENSA_TBFLAG_EXCM 0x4 +#define XTENSA_TBFLAG_LITBASE 0x8 +#define XTENSA_TBFLAG_DEBUG 0x10 +#define XTENSA_TBFLAG_ICOUNT 0x20 +#define XTENSA_TBFLAG_CPENABLE_MASK 0x3fc0 +#define XTENSA_TBFLAG_CPENABLE_SHIFT 6 +#define XTENSA_TBFLAG_EXCEPTION 0x4000 +#define XTENSA_TBFLAG_WINDOW_MASK 0x18000 +#define XTENSA_TBFLAG_WINDOW_SHIFT 15 + +static inline void cpu_get_tb_cpu_state(CPUXtensaState *env, target_ulong *pc, + target_ulong *cs_base, int *flags) +{ + CPUState *cs = CPU(xtensa_env_get_cpu(env)); + + *pc = env->pc; + *cs_base = 0; + *flags = 0; + *flags |= xtensa_get_ring(env); + if (env->sregs[PS] & PS_EXCM) { + *flags |= XTENSA_TBFLAG_EXCM; + } + if (xtensa_option_enabled(env->config, XTENSA_OPTION_EXTENDED_L32R) && + (env->sregs[LITBASE] & 1)) { + *flags |= XTENSA_TBFLAG_LITBASE; + } + if (xtensa_option_enabled(env->config, XTENSA_OPTION_DEBUG)) { + if (xtensa_get_cintlevel(env) < env->config->debug_level) { + *flags |= XTENSA_TBFLAG_DEBUG; + } + if (xtensa_get_cintlevel(env) < env->sregs[ICOUNTLEVEL]) { + *flags |= XTENSA_TBFLAG_ICOUNT; + } + } + if (xtensa_option_enabled(env->config, XTENSA_OPTION_COPROCESSOR)) { + *flags |= env->sregs[CPENABLE] << XTENSA_TBFLAG_CPENABLE_SHIFT; + } + if (cs->singlestep_enabled && env->exception_taken) { + *flags |= XTENSA_TBFLAG_EXCEPTION; + } + if (xtensa_option_enabled(env->config, XTENSA_OPTION_WINDOWED_REGISTER) && + (env->sregs[PS] & (PS_WOE | PS_EXCM)) == PS_WOE) { + uint32_t windowstart = xtensa_replicate_windowstart(env) >> + (env->sregs[WINDOW_BASE] + 1); + uint32_t w = ctz32(windowstart | 0x8); + + *flags |= w << XTENSA_TBFLAG_WINDOW_SHIFT; + } else { + *flags |= 3 << XTENSA_TBFLAG_WINDOW_SHIFT; + } +} + +#include "exec/cpu-all.h" +#include "exec/exec-all.h" + +#endif diff --git a/src/target-xtensa/gdbstub.c b/src/target-xtensa/gdbstub.c new file mode 100644 index 0000000..bc2e1b5 --- /dev/null +++ b/src/target-xtensa/gdbstub.c @@ -0,0 +1,126 @@ +/* + * Xtensa gdb server stub + * + * Copyright (c) 2003-2005 Fabrice Bellard + * Copyright (c) 2013 SUSE LINUX Products GmbH + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + */ +#include "config.h" +#include "qemu-common.h" +#include "exec/gdbstub.h" + +int xtensa_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + CPUXtensaState *env = &cpu->env; + const XtensaGdbReg *reg = env->config->gdb_regmap.reg + n; + unsigned i; + + if (n < 0 || n >= env->config->gdb_regmap.num_regs) { + return 0; + } + + switch (reg->type) { + case 9: /*pc*/ + return gdb_get_reg32(mem_buf, env->pc); + + case 1: /*ar*/ + xtensa_sync_phys_from_window(env); + return gdb_get_reg32(mem_buf, env->phys_regs[(reg->targno & 0xff) + % env->config->nareg]); + + case 2: /*SR*/ + return gdb_get_reg32(mem_buf, env->sregs[reg->targno & 0xff]); + + case 3: /*UR*/ + return gdb_get_reg32(mem_buf, env->uregs[reg->targno & 0xff]); + + case 4: /*f*/ + i = reg->targno & 0x0f; + switch (reg->size) { + case 4: + return gdb_get_reg32(mem_buf, + float32_val(env->fregs[i].f32[FP_F32_LOW])); + case 8: + return gdb_get_reg64(mem_buf, float64_val(env->fregs[i].f64)); + default: + return 0; + } + + case 8: /*a*/ + return gdb_get_reg32(mem_buf, env->regs[reg->targno & 0x0f]); + + default: + qemu_log("%s from reg %d of unsupported type %d\n", + __func__, n, reg->type); + return 0; + } +} + +int xtensa_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + CPUXtensaState *env = &cpu->env; + uint32_t tmp; + const XtensaGdbReg *reg = env->config->gdb_regmap.reg + n; + + if (n < 0 || n >= env->config->gdb_regmap.num_regs) { + return 0; + } + + tmp = ldl_p(mem_buf); + + switch (reg->type) { + case 9: /*pc*/ + env->pc = tmp; + break; + + case 1: /*ar*/ + env->phys_regs[(reg->targno & 0xff) % env->config->nareg] = tmp; + xtensa_sync_window_from_phys(env); + break; + + case 2: /*SR*/ + env->sregs[reg->targno & 0xff] = tmp; + break; + + case 3: /*UR*/ + env->uregs[reg->targno & 0xff] = tmp; + break; + + case 4: /*f*/ + switch (reg->size) { + case 4: + env->fregs[reg->targno & 0x0f].f32[FP_F32_LOW] = make_float32(tmp); + return 4; + case 8: + env->fregs[reg->targno & 0x0f].f64 = make_float64(tmp); + return 8; + default: + return 0; + } + + case 8: /*a*/ + env->regs[reg->targno & 0x0f] = tmp; + break; + + default: + qemu_log("%s to reg %d of unsupported type %d\n", + __func__, n, reg->type); + return 0; + } + + return 4; +} diff --git a/src/target-xtensa/helper.c b/src/target-xtensa/helper.c new file mode 100644 index 0000000..2c3447b --- /dev/null +++ b/src/target-xtensa/helper.c @@ -0,0 +1,729 @@ +/* + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "cpu.h" +#include "exec/exec-all.h" +#include "exec/gdbstub.h" +#include "qemu/host-utils.h" +#if !defined(CONFIG_USER_ONLY) +#include "hw/loader.h" +#endif + +static struct XtensaConfigList *xtensa_cores; + +static void xtensa_core_class_init(ObjectClass *oc, void *data) +{ + CPUClass *cc = CPU_CLASS(oc); + XtensaCPUClass *xcc = XTENSA_CPU_CLASS(oc); + const XtensaConfig *config = data; + + xcc->config = config; + + /* Use num_core_regs to see only non-privileged registers in an unmodified + * gdb. Use num_regs to see all registers. gdb modification is required + * for that: reset bit 0 in the 'flags' field of the registers definitions + * in the gdb/xtensa-config.c inside gdb source tree or inside gdb overlay. + */ + cc->gdb_num_core_regs = config->gdb_regmap.num_regs; +} + +void xtensa_finalize_config(XtensaConfig *config) +{ + unsigned i, n = 0; + + if (config->gdb_regmap.num_regs) { + return; + } + + for (i = 0; config->gdb_regmap.reg[i].targno >= 0; ++i) { + n += (config->gdb_regmap.reg[i].type != 6); + } + config->gdb_regmap.num_regs = n; +} + +void xtensa_register_core(XtensaConfigList *node) +{ + TypeInfo type = { + .parent = TYPE_XTENSA_CPU, + .class_init = xtensa_core_class_init, + .class_data = (void *)node->config, + }; + + node->next = xtensa_cores; + xtensa_cores = node; + type.name = g_strdup_printf("%s-" TYPE_XTENSA_CPU, node->config->name); + type_register(&type); + g_free((gpointer)type.name); +} + +static uint32_t check_hw_breakpoints(CPUXtensaState *env) +{ + unsigned i; + + for (i = 0; i < env->config->ndbreak; ++i) { + if (env->cpu_watchpoint[i] && + env->cpu_watchpoint[i]->flags & BP_WATCHPOINT_HIT) { + return DEBUGCAUSE_DB | (i << DEBUGCAUSE_DBNUM_SHIFT); + } + } + return 0; +} + +void xtensa_breakpoint_handler(CPUState *cs) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + CPUXtensaState *env = &cpu->env; + + if (cs->watchpoint_hit) { + if (cs->watchpoint_hit->flags & BP_CPU) { + uint32_t cause; + + cs->watchpoint_hit = NULL; + cause = check_hw_breakpoints(env); + if (cause) { + debug_exception_env(env, cause); + } + cpu_resume_from_signal(cs, NULL); + } + } +} + +XtensaCPU *cpu_xtensa_init(const char *cpu_model) +{ + ObjectClass *oc; + XtensaCPU *cpu; + CPUXtensaState *env; + + oc = cpu_class_by_name(TYPE_XTENSA_CPU, cpu_model); + if (oc == NULL) { + return NULL; + } + + cpu = XTENSA_CPU(object_new(object_class_get_name(oc))); + env = &cpu->env; + + xtensa_irq_init(env); + + object_property_set_bool(OBJECT(cpu), true, "realized", NULL); + + return cpu; +} + + +void xtensa_cpu_list(FILE *f, fprintf_function cpu_fprintf) +{ + XtensaConfigList *core = xtensa_cores; + cpu_fprintf(f, "Available CPUs:\n"); + for (; core; core = core->next) { + cpu_fprintf(f, " %s\n", core->config->name); + } +} + +hwaddr xtensa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + uint32_t paddr; + uint32_t page_size; + unsigned access; + + if (xtensa_get_physical_addr(&cpu->env, false, addr, 0, 0, + &paddr, &page_size, &access) == 0) { + return paddr; + } + if (xtensa_get_physical_addr(&cpu->env, false, addr, 2, 0, + &paddr, &page_size, &access) == 0) { + return paddr; + } + return ~0; +} + +static uint32_t relocated_vector(CPUXtensaState *env, uint32_t vector) +{ + if (xtensa_option_enabled(env->config, + XTENSA_OPTION_RELOCATABLE_VECTOR)) { + return vector - env->config->vecbase + env->sregs[VECBASE]; + } else { + return vector; + } +} + +/*! + * Handle penging IRQ. + * For the high priority interrupt jump to the corresponding interrupt vector. + * For the level-1 interrupt convert it to either user, kernel or double + * exception with the 'level-1 interrupt' exception cause. + */ +static void handle_interrupt(CPUXtensaState *env) +{ + int level = env->pending_irq_level; + + if (level > xtensa_get_cintlevel(env) && + level <= env->config->nlevel && + (env->config->level_mask[level] & + env->sregs[INTSET] & + env->sregs[INTENABLE])) { + CPUState *cs = CPU(xtensa_env_get_cpu(env)); + + if (level > 1) { + env->sregs[EPC1 + level - 1] = env->pc; + env->sregs[EPS2 + level - 2] = env->sregs[PS]; + env->sregs[PS] = + (env->sregs[PS] & ~PS_INTLEVEL) | level | PS_EXCM; + env->pc = relocated_vector(env, + env->config->interrupt_vector[level]); + } else { + env->sregs[EXCCAUSE] = LEVEL1_INTERRUPT_CAUSE; + + if (env->sregs[PS] & PS_EXCM) { + if (env->config->ndepc) { + env->sregs[DEPC] = env->pc; + } else { + env->sregs[EPC1] = env->pc; + } + cs->exception_index = EXC_DOUBLE; + } else { + env->sregs[EPC1] = env->pc; + cs->exception_index = + (env->sregs[PS] & PS_UM) ? EXC_USER : EXC_KERNEL; + } + env->sregs[PS] |= PS_EXCM; + } + env->exception_taken = 1; + } +} + +void xtensa_cpu_do_interrupt(CPUState *cs) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + CPUXtensaState *env = &cpu->env; + + if (cs->exception_index == EXC_IRQ) { + qemu_log_mask(CPU_LOG_INT, + "%s(EXC_IRQ) level = %d, cintlevel = %d, " + "pc = %08x, a0 = %08x, ps = %08x, " + "intset = %08x, intenable = %08x, " + "ccount = %08x\n", + __func__, env->pending_irq_level, xtensa_get_cintlevel(env), + env->pc, env->regs[0], env->sregs[PS], + env->sregs[INTSET], env->sregs[INTENABLE], + env->sregs[CCOUNT]); + handle_interrupt(env); + } + + switch (cs->exception_index) { + case EXC_WINDOW_OVERFLOW4: + case EXC_WINDOW_UNDERFLOW4: + case EXC_WINDOW_OVERFLOW8: + case EXC_WINDOW_UNDERFLOW8: + case EXC_WINDOW_OVERFLOW12: + case EXC_WINDOW_UNDERFLOW12: + case EXC_KERNEL: + case EXC_USER: + case EXC_DOUBLE: + case EXC_DEBUG: + qemu_log_mask(CPU_LOG_INT, "%s(%d) " + "pc = %08x, a0 = %08x, ps = %08x, ccount = %08x\n", + __func__, cs->exception_index, + env->pc, env->regs[0], env->sregs[PS], env->sregs[CCOUNT]); + if (env->config->exception_vector[cs->exception_index]) { + env->pc = relocated_vector(env, + env->config->exception_vector[cs->exception_index]); + env->exception_taken = 1; + } else { + qemu_log("%s(pc = %08x) bad exception_index: %d\n", + __func__, env->pc, cs->exception_index); + } + break; + + case EXC_IRQ: + break; + + default: + qemu_log("%s(pc = %08x) unknown exception_index: %d\n", + __func__, env->pc, cs->exception_index); + break; + } + check_interrupts(env); +} + +bool xtensa_cpu_exec_interrupt(CPUState *cs, int interrupt_request) +{ + if (interrupt_request & CPU_INTERRUPT_HARD) { + cs->exception_index = EXC_IRQ; + xtensa_cpu_do_interrupt(cs); + return true; + } + return false; +} + +static void reset_tlb_mmu_all_ways(CPUXtensaState *env, + const xtensa_tlb *tlb, xtensa_tlb_entry entry[][MAX_TLB_WAY_SIZE]) +{ + unsigned wi, ei; + + for (wi = 0; wi < tlb->nways; ++wi) { + for (ei = 0; ei < tlb->way_size[wi]; ++ei) { + entry[wi][ei].asid = 0; + entry[wi][ei].variable = true; + } + } +} + +static void reset_tlb_mmu_ways56(CPUXtensaState *env, + const xtensa_tlb *tlb, xtensa_tlb_entry entry[][MAX_TLB_WAY_SIZE]) +{ + if (!tlb->varway56) { + static const xtensa_tlb_entry way5[] = { + { + .vaddr = 0xd0000000, + .paddr = 0, + .asid = 1, + .attr = 7, + .variable = false, + }, { + .vaddr = 0xd8000000, + .paddr = 0, + .asid = 1, + .attr = 3, + .variable = false, + } + }; + static const xtensa_tlb_entry way6[] = { + { + .vaddr = 0xe0000000, + .paddr = 0xf0000000, + .asid = 1, + .attr = 7, + .variable = false, + }, { + .vaddr = 0xf0000000, + .paddr = 0xf0000000, + .asid = 1, + .attr = 3, + .variable = false, + } + }; + memcpy(entry[5], way5, sizeof(way5)); + memcpy(entry[6], way6, sizeof(way6)); + } else { + uint32_t ei; + for (ei = 0; ei < 8; ++ei) { + entry[6][ei].vaddr = ei << 29; + entry[6][ei].paddr = ei << 29; + entry[6][ei].asid = 1; + entry[6][ei].attr = 3; + } + } +} + +static void reset_tlb_region_way0(CPUXtensaState *env, + xtensa_tlb_entry entry[][MAX_TLB_WAY_SIZE]) +{ + unsigned ei; + + for (ei = 0; ei < 8; ++ei) { + entry[0][ei].vaddr = ei << 29; + entry[0][ei].paddr = ei << 29; + entry[0][ei].asid = 1; + entry[0][ei].attr = 2; + entry[0][ei].variable = true; + } +} + +void reset_mmu(CPUXtensaState *env) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + env->sregs[RASID] = 0x04030201; + env->sregs[ITLBCFG] = 0; + env->sregs[DTLBCFG] = 0; + env->autorefill_idx = 0; + reset_tlb_mmu_all_ways(env, &env->config->itlb, env->itlb); + reset_tlb_mmu_all_ways(env, &env->config->dtlb, env->dtlb); + reset_tlb_mmu_ways56(env, &env->config->itlb, env->itlb); + reset_tlb_mmu_ways56(env, &env->config->dtlb, env->dtlb); + } else { + reset_tlb_region_way0(env, env->itlb); + reset_tlb_region_way0(env, env->dtlb); + } +} + +static unsigned get_ring(const CPUXtensaState *env, uint8_t asid) +{ + unsigned i; + for (i = 0; i < 4; ++i) { + if (((env->sregs[RASID] >> i * 8) & 0xff) == asid) { + return i; + } + } + return 0xff; +} + +/*! + * Lookup xtensa TLB for the given virtual address. + * See ISA, 4.6.2.2 + * + * \param pwi: [out] way index + * \param pei: [out] entry index + * \param pring: [out] access ring + * \return 0 if ok, exception cause code otherwise + */ +int xtensa_tlb_lookup(const CPUXtensaState *env, uint32_t addr, bool dtlb, + uint32_t *pwi, uint32_t *pei, uint8_t *pring) +{ + const xtensa_tlb *tlb = dtlb ? + &env->config->dtlb : &env->config->itlb; + const xtensa_tlb_entry (*entry)[MAX_TLB_WAY_SIZE] = dtlb ? + env->dtlb : env->itlb; + + int nhits = 0; + unsigned wi; + + for (wi = 0; wi < tlb->nways; ++wi) { + uint32_t vpn; + uint32_t ei; + split_tlb_entry_spec_way(env, addr, dtlb, &vpn, wi, &ei); + if (entry[wi][ei].vaddr == vpn && entry[wi][ei].asid) { + unsigned ring = get_ring(env, entry[wi][ei].asid); + if (ring < 4) { + if (++nhits > 1) { + return dtlb ? + LOAD_STORE_TLB_MULTI_HIT_CAUSE : + INST_TLB_MULTI_HIT_CAUSE; + } + *pwi = wi; + *pei = ei; + *pring = ring; + } + } + } + return nhits ? 0 : + (dtlb ? LOAD_STORE_TLB_MISS_CAUSE : INST_TLB_MISS_CAUSE); +} + +/*! + * Convert MMU ATTR to PAGE_{READ,WRITE,EXEC} mask. + * See ISA, 4.6.5.10 + */ +static unsigned mmu_attr_to_access(uint32_t attr) +{ + unsigned access = 0; + + if (attr < 12) { + access |= PAGE_READ; + if (attr & 0x1) { + access |= PAGE_EXEC; + } + if (attr & 0x2) { + access |= PAGE_WRITE; + } + + switch (attr & 0xc) { + case 0: + access |= PAGE_CACHE_BYPASS; + break; + + case 4: + access |= PAGE_CACHE_WB; + break; + + case 8: + access |= PAGE_CACHE_WT; + break; + } + } else if (attr == 13) { + access |= PAGE_READ | PAGE_WRITE | PAGE_CACHE_ISOLATE; + } + return access; +} + +/*! + * Convert region protection ATTR to PAGE_{READ,WRITE,EXEC} mask. + * See ISA, 4.6.3.3 + */ +static unsigned region_attr_to_access(uint32_t attr) +{ + static const unsigned access[16] = { + [0] = PAGE_READ | PAGE_WRITE | PAGE_CACHE_WT, + [1] = PAGE_READ | PAGE_WRITE | PAGE_EXEC | PAGE_CACHE_WT, + [2] = PAGE_READ | PAGE_WRITE | PAGE_EXEC | PAGE_CACHE_BYPASS, + [3] = PAGE_EXEC | PAGE_CACHE_WB, + [4] = PAGE_READ | PAGE_WRITE | PAGE_EXEC | PAGE_CACHE_WB, + [5] = PAGE_READ | PAGE_WRITE | PAGE_EXEC | PAGE_CACHE_WB, + [14] = PAGE_READ | PAGE_WRITE | PAGE_CACHE_ISOLATE, + }; + + return access[attr & 0xf]; +} + +/*! + * Convert cacheattr to PAGE_{READ,WRITE,EXEC} mask. + * See ISA, A.2.14 The Cache Attribute Register + */ +static unsigned cacheattr_attr_to_access(uint32_t attr) +{ + static const unsigned access[16] = { + [0] = PAGE_READ | PAGE_WRITE | PAGE_CACHE_WT, + [1] = PAGE_READ | PAGE_WRITE | PAGE_EXEC | PAGE_CACHE_WT, + [2] = PAGE_READ | PAGE_WRITE | PAGE_EXEC | PAGE_CACHE_BYPASS, + [3] = PAGE_EXEC | PAGE_CACHE_WB, + [4] = PAGE_READ | PAGE_WRITE | PAGE_EXEC | PAGE_CACHE_WB, + [14] = PAGE_READ | PAGE_WRITE | PAGE_CACHE_ISOLATE, + }; + + return access[attr & 0xf]; +} + +static bool is_access_granted(unsigned access, int is_write) +{ + switch (is_write) { + case 0: + return access & PAGE_READ; + + case 1: + return access & PAGE_WRITE; + + case 2: + return access & PAGE_EXEC; + + default: + return 0; + } +} + +static int get_pte(CPUXtensaState *env, uint32_t vaddr, uint32_t *pte); + +static int get_physical_addr_mmu(CPUXtensaState *env, bool update_tlb, + uint32_t vaddr, int is_write, int mmu_idx, + uint32_t *paddr, uint32_t *page_size, unsigned *access, + bool may_lookup_pt) +{ + bool dtlb = is_write != 2; + uint32_t wi; + uint32_t ei; + uint8_t ring; + uint32_t vpn; + uint32_t pte; + const xtensa_tlb_entry *entry = NULL; + xtensa_tlb_entry tmp_entry; + int ret = xtensa_tlb_lookup(env, vaddr, dtlb, &wi, &ei, &ring); + + if ((ret == INST_TLB_MISS_CAUSE || ret == LOAD_STORE_TLB_MISS_CAUSE) && + may_lookup_pt && get_pte(env, vaddr, &pte) == 0) { + ring = (pte >> 4) & 0x3; + wi = 0; + split_tlb_entry_spec_way(env, vaddr, dtlb, &vpn, wi, &ei); + + if (update_tlb) { + wi = ++env->autorefill_idx & 0x3; + xtensa_tlb_set_entry(env, dtlb, wi, ei, vpn, pte); + env->sregs[EXCVADDR] = vaddr; + qemu_log_mask(CPU_LOG_MMU, "%s: autorefill(%08x): %08x -> %08x\n", + __func__, vaddr, vpn, pte); + } else { + xtensa_tlb_set_entry_mmu(env, &tmp_entry, dtlb, wi, ei, vpn, pte); + entry = &tmp_entry; + } + ret = 0; + } + if (ret != 0) { + return ret; + } + + if (entry == NULL) { + entry = xtensa_tlb_get_entry(env, dtlb, wi, ei); + } + + if (ring < mmu_idx) { + return dtlb ? + LOAD_STORE_PRIVILEGE_CAUSE : + INST_FETCH_PRIVILEGE_CAUSE; + } + + *access = mmu_attr_to_access(entry->attr) & + ~(dtlb ? PAGE_EXEC : PAGE_READ | PAGE_WRITE); + if (!is_access_granted(*access, is_write)) { + return dtlb ? + (is_write ? + STORE_PROHIBITED_CAUSE : + LOAD_PROHIBITED_CAUSE) : + INST_FETCH_PROHIBITED_CAUSE; + } + + *paddr = entry->paddr | (vaddr & ~xtensa_tlb_get_addr_mask(env, dtlb, wi)); + *page_size = ~xtensa_tlb_get_addr_mask(env, dtlb, wi) + 1; + + return 0; +} + +static int get_pte(CPUXtensaState *env, uint32_t vaddr, uint32_t *pte) +{ + CPUState *cs = CPU(xtensa_env_get_cpu(env)); + uint32_t paddr; + uint32_t page_size; + unsigned access; + uint32_t pt_vaddr = + (env->sregs[PTEVADDR] | (vaddr >> 10)) & 0xfffffffc; + int ret = get_physical_addr_mmu(env, false, pt_vaddr, 0, 0, + &paddr, &page_size, &access, false); + + qemu_log_mask(CPU_LOG_MMU, "%s: trying autorefill(%08x) -> %08x\n", + __func__, vaddr, ret ? ~0 : paddr); + + if (ret == 0) { + *pte = ldl_phys(cs->as, paddr); + } + return ret; +} + +static int get_physical_addr_region(CPUXtensaState *env, + uint32_t vaddr, int is_write, int mmu_idx, + uint32_t *paddr, uint32_t *page_size, unsigned *access) +{ + bool dtlb = is_write != 2; + uint32_t wi = 0; + uint32_t ei = (vaddr >> 29) & 0x7; + const xtensa_tlb_entry *entry = + xtensa_tlb_get_entry(env, dtlb, wi, ei); + + *access = region_attr_to_access(entry->attr); + if (!is_access_granted(*access, is_write)) { + return dtlb ? + (is_write ? + STORE_PROHIBITED_CAUSE : + LOAD_PROHIBITED_CAUSE) : + INST_FETCH_PROHIBITED_CAUSE; + } + + *paddr = entry->paddr | (vaddr & ~REGION_PAGE_MASK); + *page_size = ~REGION_PAGE_MASK + 1; + + return 0; +} + +/*! + * Convert virtual address to physical addr. + * MMU may issue pagewalk and change xtensa autorefill TLB way entry. + * + * \return 0 if ok, exception cause code otherwise + */ +int xtensa_get_physical_addr(CPUXtensaState *env, bool update_tlb, + uint32_t vaddr, int is_write, int mmu_idx, + uint32_t *paddr, uint32_t *page_size, unsigned *access) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + return get_physical_addr_mmu(env, update_tlb, + vaddr, is_write, mmu_idx, paddr, page_size, access, true); + } else if (xtensa_option_bits_enabled(env->config, + XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) | + XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION))) { + return get_physical_addr_region(env, vaddr, is_write, mmu_idx, + paddr, page_size, access); + } else { + *paddr = vaddr; + *page_size = TARGET_PAGE_SIZE; + *access = cacheattr_attr_to_access( + env->sregs[CACHEATTR] >> ((vaddr & 0xe0000000) >> 27)); + return 0; + } +} + +static void dump_tlb(FILE *f, fprintf_function cpu_fprintf, + CPUXtensaState *env, bool dtlb) +{ + unsigned wi, ei; + const xtensa_tlb *conf = + dtlb ? &env->config->dtlb : &env->config->itlb; + unsigned (*attr_to_access)(uint32_t) = + xtensa_option_enabled(env->config, XTENSA_OPTION_MMU) ? + mmu_attr_to_access : region_attr_to_access; + + for (wi = 0; wi < conf->nways; ++wi) { + uint32_t sz = ~xtensa_tlb_get_addr_mask(env, dtlb, wi) + 1; + const char *sz_text; + bool print_header = true; + + if (sz >= 0x100000) { + sz >>= 20; + sz_text = "MB"; + } else { + sz >>= 10; + sz_text = "KB"; + } + + for (ei = 0; ei < conf->way_size[wi]; ++ei) { + const xtensa_tlb_entry *entry = + xtensa_tlb_get_entry(env, dtlb, wi, ei); + + if (entry->asid) { + static const char * const cache_text[8] = { + [PAGE_CACHE_BYPASS >> PAGE_CACHE_SHIFT] = "Bypass", + [PAGE_CACHE_WT >> PAGE_CACHE_SHIFT] = "WT", + [PAGE_CACHE_WB >> PAGE_CACHE_SHIFT] = "WB", + [PAGE_CACHE_ISOLATE >> PAGE_CACHE_SHIFT] = "Isolate", + }; + unsigned access = attr_to_access(entry->attr); + unsigned cache_idx = (access & PAGE_CACHE_MASK) >> + PAGE_CACHE_SHIFT; + + if (print_header) { + print_header = false; + cpu_fprintf(f, "Way %u (%d %s)\n", wi, sz, sz_text); + cpu_fprintf(f, + "\tVaddr Paddr ASID Attr RWX Cache\n" + "\t---------- ---------- ---- ---- --- -------\n"); + } + cpu_fprintf(f, + "\t0x%08x 0x%08x 0x%02x 0x%02x %c%c%c %-7s\n", + entry->vaddr, + entry->paddr, + entry->asid, + entry->attr, + (access & PAGE_READ) ? 'R' : '-', + (access & PAGE_WRITE) ? 'W' : '-', + (access & PAGE_EXEC) ? 'X' : '-', + cache_text[cache_idx] ? cache_text[cache_idx] : + "Invalid"); + } + } + } +} + +void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUXtensaState *env) +{ + if (xtensa_option_bits_enabled(env->config, + XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) | + XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION) | + XTENSA_OPTION_BIT(XTENSA_OPTION_MMU))) { + + cpu_fprintf(f, "ITLB:\n"); + dump_tlb(f, cpu_fprintf, env, false); + cpu_fprintf(f, "\nDTLB:\n"); + dump_tlb(f, cpu_fprintf, env, true); + } else { + cpu_fprintf(f, "No TLB for this CPU core\n"); + } +} diff --git a/src/target-xtensa/helper.h b/src/target-xtensa/helper.h new file mode 100644 index 0000000..5ea9c5b --- /dev/null +++ b/src/target-xtensa/helper.h @@ -0,0 +1,58 @@ +DEF_HELPER_2(exception, noreturn, env, i32) +DEF_HELPER_3(exception_cause, noreturn, env, i32, i32) +DEF_HELPER_4(exception_cause_vaddr, noreturn, env, i32, i32, i32) +DEF_HELPER_3(debug_exception, noreturn, env, i32, i32) + +DEF_HELPER_FLAGS_1(nsa, TCG_CALL_NO_RWG_SE, i32, i32) +DEF_HELPER_FLAGS_1(nsau, TCG_CALL_NO_RWG_SE, i32, i32) +DEF_HELPER_2(wsr_windowbase, void, env, i32) +DEF_HELPER_4(entry, void, env, i32, i32, i32) +DEF_HELPER_2(retw, i32, env, i32) +DEF_HELPER_2(rotw, void, env, i32) +DEF_HELPER_3(window_check, noreturn, env, i32, i32) +DEF_HELPER_1(restore_owb, void, env) +DEF_HELPER_2(movsp, void, env, i32) +DEF_HELPER_2(wsr_lbeg, void, env, i32) +DEF_HELPER_2(wsr_lend, void, env, i32) +DEF_HELPER_1(simcall, void, env) +DEF_HELPER_1(dump_state, void, env) + +DEF_HELPER_3(waiti, void, env, i32, i32) +DEF_HELPER_3(timer_irq, void, env, i32, i32) +DEF_HELPER_2(advance_ccount, void, env, i32) +DEF_HELPER_1(check_interrupts, void, env) +DEF_HELPER_3(check_atomctl, void, env, i32, i32) + +DEF_HELPER_2(itlb_hit_test, void, env, i32) +DEF_HELPER_2(wsr_rasid, void, env, i32) +DEF_HELPER_FLAGS_3(rtlb0, TCG_CALL_NO_RWG_SE, i32, env, i32, i32) +DEF_HELPER_FLAGS_3(rtlb1, TCG_CALL_NO_RWG_SE, i32, env, i32, i32) +DEF_HELPER_3(itlb, void, env, i32, i32) +DEF_HELPER_3(ptlb, i32, env, i32, i32) +DEF_HELPER_4(wtlb, void, env, i32, i32, i32) + +DEF_HELPER_2(wsr_ibreakenable, void, env, i32) +DEF_HELPER_3(wsr_ibreaka, void, env, i32, i32) +DEF_HELPER_3(wsr_dbreaka, void, env, i32, i32) +DEF_HELPER_3(wsr_dbreakc, void, env, i32, i32) + +DEF_HELPER_2(wur_fcr, void, env, i32) +DEF_HELPER_FLAGS_1(abs_s, TCG_CALL_NO_RWG_SE, f32, f32) +DEF_HELPER_FLAGS_1(neg_s, TCG_CALL_NO_RWG_SE, f32, f32) +DEF_HELPER_3(add_s, f32, env, f32, f32) +DEF_HELPER_3(sub_s, f32, env, f32, f32) +DEF_HELPER_3(mul_s, f32, env, f32, f32) +DEF_HELPER_4(madd_s, f32, env, f32, f32, f32) +DEF_HELPER_4(msub_s, f32, env, f32, f32, f32) +DEF_HELPER_FLAGS_3(ftoi, TCG_CALL_NO_RWG_SE, i32, f32, i32, i32) +DEF_HELPER_FLAGS_3(ftoui, TCG_CALL_NO_RWG_SE, i32, f32, i32, i32) +DEF_HELPER_3(itof, f32, env, i32, i32) +DEF_HELPER_3(uitof, f32, env, i32, i32) + +DEF_HELPER_4(un_s, void, env, i32, f32, f32) +DEF_HELPER_4(oeq_s, void, env, i32, f32, f32) +DEF_HELPER_4(ueq_s, void, env, i32, f32, f32) +DEF_HELPER_4(olt_s, void, env, i32, f32, f32) +DEF_HELPER_4(ult_s, void, env, i32, f32, f32) +DEF_HELPER_4(ole_s, void, env, i32, f32, f32) +DEF_HELPER_4(ule_s, void, env, i32, f32, f32) diff --git a/src/target-xtensa/import_core.sh b/src/target-xtensa/import_core.sh new file mode 100755 index 0000000..351bee4 --- /dev/null +++ b/src/target-xtensa/import_core.sh @@ -0,0 +1,51 @@ +#! /bin/bash -e + +OVERLAY="$1" +NAME="$2" +FREQ=40000 +BASE=$(dirname "$0") +TARGET="$BASE"/core-$NAME + +[ $# -ge 2 -a -f "$OVERLAY" ] || { cat <<EOF +Usage: $0 overlay-archive-to-import core-name [frequency-in-KHz] + overlay-archive-to-import: file name of xtensa-config-overlay.tar.gz + to import configuration from. + core-name: QEMU name of the imported core. Must be valid + C identifier. + frequency-in-KHz: core frequency (40MHz if not specified). +EOF +exit +} + +[ $# -ge 3 ] && FREQ="$3" +mkdir -p "$TARGET" +tar -xf "$OVERLAY" -C "$TARGET" --strip-components=1 \ + --xform='s/core/core-isa/' config/core.h +tar -xf "$OVERLAY" -O gdb/xtensa-config.c | \ + sed -n '1,/*\//p;/XTREG/,/XTREG_END/p' > "$TARGET"/gdb-config.c + +cat <<EOF > "${TARGET}.c" +#include "cpu.h" +#include "exec/exec-all.h" +#include "exec/gdbstub.h" +#include "qemu/host-utils.h" + +#include "core-$NAME/core-isa.h" +#include "overlay_tool.h" + +static XtensaConfig $NAME __attribute__((unused)) = { + .name = "$NAME", + .gdb_regmap = { + .reg = { +#include "core-$NAME/gdb-config.c" + } + }, + .clock_freq_khz = $FREQ, + DEFAULT_SECTIONS +}; + +REGISTER_CORE($NAME) +EOF + +grep -q core-${NAME}.o "$BASE"/Makefile.objs || \ + echo "obj-y += core-${NAME}.o" >> "$BASE"/Makefile.objs diff --git a/src/target-xtensa/monitor.c b/src/target-xtensa/monitor.c new file mode 100644 index 0000000..554b212 --- /dev/null +++ b/src/target-xtensa/monitor.c @@ -0,0 +1,34 @@ +/* + * QEMU monitor + * + * Copyright (c) 2003-2004 Fabrice Bellard + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#include "cpu.h" +#include "monitor/monitor.h" +#include "monitor/hmp-target.h" +#include "hmp.h" + +void hmp_info_tlb(Monitor *mon, const QDict *qdict) +{ + CPUArchState *env1 = mon_get_cpu_env(); + + dump_mmu((FILE*)mon, (fprintf_function)monitor_printf, env1); +} diff --git a/src/target-xtensa/op_helper.c b/src/target-xtensa/op_helper.c new file mode 100644 index 0000000..718e54e --- /dev/null +++ b/src/target-xtensa/op_helper.c @@ -0,0 +1,981 @@ +/* + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "cpu.h" +#include "exec/helper-proto.h" +#include "qemu/host-utils.h" +#include "exec/cpu_ldst.h" +#include "exec/address-spaces.h" +#include "qemu/timer.h" + +void xtensa_cpu_do_unaligned_access(CPUState *cs, + vaddr addr, int is_write, int is_user, uintptr_t retaddr) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + CPUXtensaState *env = &cpu->env; + + if (xtensa_option_enabled(env->config, XTENSA_OPTION_UNALIGNED_EXCEPTION) && + !xtensa_option_enabled(env->config, XTENSA_OPTION_HW_ALIGNMENT)) { + cpu_restore_state(CPU(cpu), retaddr); + HELPER(exception_cause_vaddr)(env, + env->pc, LOAD_STORE_ALIGNMENT_CAUSE, addr); + } +} + +void tlb_fill(CPUState *cs, + target_ulong vaddr, int is_write, int mmu_idx, uintptr_t retaddr) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + CPUXtensaState *env = &cpu->env; + uint32_t paddr; + uint32_t page_size; + unsigned access; + int ret = xtensa_get_physical_addr(env, true, vaddr, is_write, mmu_idx, + &paddr, &page_size, &access); + + qemu_log_mask(CPU_LOG_MMU, "%s(%08x, %d, %d) -> %08x, ret = %d\n", + __func__, vaddr, is_write, mmu_idx, paddr, ret); + + if (ret == 0) { + tlb_set_page(cs, + vaddr & TARGET_PAGE_MASK, + paddr & TARGET_PAGE_MASK, + access, mmu_idx, page_size); + } else { + cpu_restore_state(cs, retaddr); + HELPER(exception_cause_vaddr)(env, env->pc, ret, vaddr); + } +} + +void xtensa_cpu_do_unassigned_access(CPUState *cs, hwaddr addr, + bool is_write, bool is_exec, int opaque, + unsigned size) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + CPUXtensaState *env = &cpu->env; + + HELPER(exception_cause_vaddr)(env, env->pc, + is_exec ? + INSTR_PIF_ADDR_ERROR_CAUSE : + LOAD_STORE_PIF_ADDR_ERROR_CAUSE, + is_exec ? addr : cs->mem_io_vaddr); +} + +static void tb_invalidate_virtual_addr(CPUXtensaState *env, uint32_t vaddr) +{ + uint32_t paddr; + uint32_t page_size; + unsigned access; + int ret = xtensa_get_physical_addr(env, false, vaddr, 2, 0, + &paddr, &page_size, &access); + if (ret == 0) { + tb_invalidate_phys_addr(&address_space_memory, paddr); + } +} + +void HELPER(exception)(CPUXtensaState *env, uint32_t excp) +{ + CPUState *cs = CPU(xtensa_env_get_cpu(env)); + + cs->exception_index = excp; + if (excp == EXCP_DEBUG) { + env->exception_taken = 0; + } + cpu_loop_exit(cs); +} + +void HELPER(exception_cause)(CPUXtensaState *env, uint32_t pc, uint32_t cause) +{ + uint32_t vector; + + env->pc = pc; + if (env->sregs[PS] & PS_EXCM) { + if (env->config->ndepc) { + env->sregs[DEPC] = pc; + } else { + env->sregs[EPC1] = pc; + } + vector = EXC_DOUBLE; + } else { + env->sregs[EPC1] = pc; + vector = (env->sregs[PS] & PS_UM) ? EXC_USER : EXC_KERNEL; + } + + env->sregs[EXCCAUSE] = cause; + env->sregs[PS] |= PS_EXCM; + + HELPER(exception)(env, vector); +} + +void HELPER(exception_cause_vaddr)(CPUXtensaState *env, + uint32_t pc, uint32_t cause, uint32_t vaddr) +{ + env->sregs[EXCVADDR] = vaddr; + HELPER(exception_cause)(env, pc, cause); +} + +void debug_exception_env(CPUXtensaState *env, uint32_t cause) +{ + if (xtensa_get_cintlevel(env) < env->config->debug_level) { + HELPER(debug_exception)(env, env->pc, cause); + } +} + +void HELPER(debug_exception)(CPUXtensaState *env, uint32_t pc, uint32_t cause) +{ + unsigned level = env->config->debug_level; + + env->pc = pc; + env->sregs[DEBUGCAUSE] = cause; + env->sregs[EPC1 + level - 1] = pc; + env->sregs[EPS2 + level - 2] = env->sregs[PS]; + env->sregs[PS] = (env->sregs[PS] & ~PS_INTLEVEL) | PS_EXCM | + (level << PS_INTLEVEL_SHIFT); + HELPER(exception)(env, EXC_DEBUG); +} + +uint32_t HELPER(nsa)(uint32_t v) +{ + if (v & 0x80000000) { + v = ~v; + } + return v ? clz32(v) - 1 : 31; +} + +uint32_t HELPER(nsau)(uint32_t v) +{ + return v ? clz32(v) : 32; +} + +static void copy_window_from_phys(CPUXtensaState *env, + uint32_t window, uint32_t phys, uint32_t n) +{ + assert(phys < env->config->nareg); + if (phys + n <= env->config->nareg) { + memcpy(env->regs + window, env->phys_regs + phys, + n * sizeof(uint32_t)); + } else { + uint32_t n1 = env->config->nareg - phys; + memcpy(env->regs + window, env->phys_regs + phys, + n1 * sizeof(uint32_t)); + memcpy(env->regs + window + n1, env->phys_regs, + (n - n1) * sizeof(uint32_t)); + } +} + +static void copy_phys_from_window(CPUXtensaState *env, + uint32_t phys, uint32_t window, uint32_t n) +{ + assert(phys < env->config->nareg); + if (phys + n <= env->config->nareg) { + memcpy(env->phys_regs + phys, env->regs + window, + n * sizeof(uint32_t)); + } else { + uint32_t n1 = env->config->nareg - phys; + memcpy(env->phys_regs + phys, env->regs + window, + n1 * sizeof(uint32_t)); + memcpy(env->phys_regs, env->regs + window + n1, + (n - n1) * sizeof(uint32_t)); + } +} + + +static inline unsigned windowbase_bound(unsigned a, const CPUXtensaState *env) +{ + return a & (env->config->nareg / 4 - 1); +} + +static inline unsigned windowstart_bit(unsigned a, const CPUXtensaState *env) +{ + return 1 << windowbase_bound(a, env); +} + +void xtensa_sync_window_from_phys(CPUXtensaState *env) +{ + copy_window_from_phys(env, 0, env->sregs[WINDOW_BASE] * 4, 16); +} + +void xtensa_sync_phys_from_window(CPUXtensaState *env) +{ + copy_phys_from_window(env, env->sregs[WINDOW_BASE] * 4, 0, 16); +} + +static void rotate_window_abs(CPUXtensaState *env, uint32_t position) +{ + xtensa_sync_phys_from_window(env); + env->sregs[WINDOW_BASE] = windowbase_bound(position, env); + xtensa_sync_window_from_phys(env); +} + +static void rotate_window(CPUXtensaState *env, uint32_t delta) +{ + rotate_window_abs(env, env->sregs[WINDOW_BASE] + delta); +} + +void HELPER(wsr_windowbase)(CPUXtensaState *env, uint32_t v) +{ + rotate_window_abs(env, v); +} + +void HELPER(entry)(CPUXtensaState *env, uint32_t pc, uint32_t s, uint32_t imm) +{ + int callinc = (env->sregs[PS] & PS_CALLINC) >> PS_CALLINC_SHIFT; + if (s > 3 || ((env->sregs[PS] & (PS_WOE | PS_EXCM)) ^ PS_WOE) != 0) { + qemu_log("Illegal entry instruction(pc = %08x), PS = %08x\n", + pc, env->sregs[PS]); + HELPER(exception_cause)(env, pc, ILLEGAL_INSTRUCTION_CAUSE); + } else { + uint32_t windowstart = xtensa_replicate_windowstart(env) >> + (env->sregs[WINDOW_BASE] + 1); + + if (windowstart & ((1 << callinc) - 1)) { + HELPER(window_check)(env, pc, callinc); + } + env->regs[(callinc << 2) | (s & 3)] = env->regs[s] - (imm << 3); + rotate_window(env, callinc); + env->sregs[WINDOW_START] |= + windowstart_bit(env->sregs[WINDOW_BASE], env); + } +} + +void HELPER(window_check)(CPUXtensaState *env, uint32_t pc, uint32_t w) +{ + uint32_t windowbase = windowbase_bound(env->sregs[WINDOW_BASE], env); + uint32_t windowstart = xtensa_replicate_windowstart(env) >> + (env->sregs[WINDOW_BASE] + 1); + uint32_t n = ctz32(windowstart) + 1; + + assert(n <= w); + + rotate_window(env, n); + env->sregs[PS] = (env->sregs[PS] & ~PS_OWB) | + (windowbase << PS_OWB_SHIFT) | PS_EXCM; + env->sregs[EPC1] = env->pc = pc; + + switch (ctz32(windowstart >> n)) { + case 0: + HELPER(exception)(env, EXC_WINDOW_OVERFLOW4); + break; + case 1: + HELPER(exception)(env, EXC_WINDOW_OVERFLOW8); + break; + default: + HELPER(exception)(env, EXC_WINDOW_OVERFLOW12); + break; + } +} + +uint32_t HELPER(retw)(CPUXtensaState *env, uint32_t pc) +{ + int n = (env->regs[0] >> 30) & 0x3; + int m = 0; + uint32_t windowbase = windowbase_bound(env->sregs[WINDOW_BASE], env); + uint32_t windowstart = env->sregs[WINDOW_START]; + uint32_t ret_pc = 0; + + if (windowstart & windowstart_bit(windowbase - 1, env)) { + m = 1; + } else if (windowstart & windowstart_bit(windowbase - 2, env)) { + m = 2; + } else if (windowstart & windowstart_bit(windowbase - 3, env)) { + m = 3; + } + + if (n == 0 || (m != 0 && m != n) || + ((env->sregs[PS] & (PS_WOE | PS_EXCM)) ^ PS_WOE) != 0) { + qemu_log("Illegal retw instruction(pc = %08x), " + "PS = %08x, m = %d, n = %d\n", + pc, env->sregs[PS], m, n); + HELPER(exception_cause)(env, pc, ILLEGAL_INSTRUCTION_CAUSE); + } else { + int owb = windowbase; + + ret_pc = (pc & 0xc0000000) | (env->regs[0] & 0x3fffffff); + + rotate_window(env, -n); + if (windowstart & windowstart_bit(env->sregs[WINDOW_BASE], env)) { + env->sregs[WINDOW_START] &= ~windowstart_bit(owb, env); + } else { + /* window underflow */ + env->sregs[PS] = (env->sregs[PS] & ~PS_OWB) | + (windowbase << PS_OWB_SHIFT) | PS_EXCM; + env->sregs[EPC1] = env->pc = pc; + + if (n == 1) { + HELPER(exception)(env, EXC_WINDOW_UNDERFLOW4); + } else if (n == 2) { + HELPER(exception)(env, EXC_WINDOW_UNDERFLOW8); + } else if (n == 3) { + HELPER(exception)(env, EXC_WINDOW_UNDERFLOW12); + } + } + } + return ret_pc; +} + +void HELPER(rotw)(CPUXtensaState *env, uint32_t imm4) +{ + rotate_window(env, imm4); +} + +void HELPER(restore_owb)(CPUXtensaState *env) +{ + rotate_window_abs(env, (env->sregs[PS] & PS_OWB) >> PS_OWB_SHIFT); +} + +void HELPER(movsp)(CPUXtensaState *env, uint32_t pc) +{ + if ((env->sregs[WINDOW_START] & + (windowstart_bit(env->sregs[WINDOW_BASE] - 3, env) | + windowstart_bit(env->sregs[WINDOW_BASE] - 2, env) | + windowstart_bit(env->sregs[WINDOW_BASE] - 1, env))) == 0) { + HELPER(exception_cause)(env, pc, ALLOCA_CAUSE); + } +} + +void HELPER(wsr_lbeg)(CPUXtensaState *env, uint32_t v) +{ + if (env->sregs[LBEG] != v) { + tb_invalidate_virtual_addr(env, env->sregs[LEND] - 1); + env->sregs[LBEG] = v; + } +} + +void HELPER(wsr_lend)(CPUXtensaState *env, uint32_t v) +{ + if (env->sregs[LEND] != v) { + tb_invalidate_virtual_addr(env, env->sregs[LEND] - 1); + env->sregs[LEND] = v; + tb_invalidate_virtual_addr(env, env->sregs[LEND] - 1); + } +} + +void HELPER(dump_state)(CPUXtensaState *env) +{ + XtensaCPU *cpu = xtensa_env_get_cpu(env); + + cpu_dump_state(CPU(cpu), stderr, fprintf, 0); +} + +void HELPER(waiti)(CPUXtensaState *env, uint32_t pc, uint32_t intlevel) +{ + CPUState *cpu; + + env->pc = pc; + env->sregs[PS] = (env->sregs[PS] & ~PS_INTLEVEL) | + (intlevel << PS_INTLEVEL_SHIFT); + check_interrupts(env); + if (env->pending_irq_level) { + cpu_loop_exit(CPU(xtensa_env_get_cpu(env))); + return; + } + + cpu = CPU(xtensa_env_get_cpu(env)); + env->halt_clock = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); + cpu->halted = 1; + if (xtensa_option_enabled(env->config, XTENSA_OPTION_TIMER_INTERRUPT)) { + xtensa_rearm_ccompare_timer(env); + } + HELPER(exception)(env, EXCP_HLT); +} + +void HELPER(timer_irq)(CPUXtensaState *env, uint32_t id, uint32_t active) +{ + xtensa_timer_irq(env, id, active); +} + +void HELPER(advance_ccount)(CPUXtensaState *env, uint32_t d) +{ + xtensa_advance_ccount(env, d); +} + +void HELPER(check_interrupts)(CPUXtensaState *env) +{ + check_interrupts(env); +} + +void HELPER(itlb_hit_test)(CPUXtensaState *env, uint32_t vaddr) +{ + get_page_addr_code(env, vaddr); +} + +/*! + * Check vaddr accessibility/cache attributes and raise an exception if + * specified by the ATOMCTL SR. + * + * Note: local memory exclusion is not implemented + */ +void HELPER(check_atomctl)(CPUXtensaState *env, uint32_t pc, uint32_t vaddr) +{ + uint32_t paddr, page_size, access; + uint32_t atomctl = env->sregs[ATOMCTL]; + int rc = xtensa_get_physical_addr(env, true, vaddr, 1, + xtensa_get_cring(env), &paddr, &page_size, &access); + + /* + * s32c1i never causes LOAD_PROHIBITED_CAUSE exceptions, + * see opcode description in the ISA + */ + if (rc == 0 && + (access & (PAGE_READ | PAGE_WRITE)) != (PAGE_READ | PAGE_WRITE)) { + rc = STORE_PROHIBITED_CAUSE; + } + + if (rc) { + HELPER(exception_cause_vaddr)(env, pc, rc, vaddr); + } + + /* + * When data cache is not configured use ATOMCTL bypass field. + * See ISA, 4.3.12.4 The Atomic Operation Control Register (ATOMCTL) + * under the Conditional Store Option. + */ + if (!xtensa_option_enabled(env->config, XTENSA_OPTION_DCACHE)) { + access = PAGE_CACHE_BYPASS; + } + + switch (access & PAGE_CACHE_MASK) { + case PAGE_CACHE_WB: + atomctl >>= 2; + /* fall through */ + case PAGE_CACHE_WT: + atomctl >>= 2; + /* fall through */ + case PAGE_CACHE_BYPASS: + if ((atomctl & 0x3) == 0) { + HELPER(exception_cause_vaddr)(env, pc, + LOAD_STORE_ERROR_CAUSE, vaddr); + } + break; + + case PAGE_CACHE_ISOLATE: + HELPER(exception_cause_vaddr)(env, pc, + LOAD_STORE_ERROR_CAUSE, vaddr); + break; + + default: + break; + } +} + +void HELPER(wsr_rasid)(CPUXtensaState *env, uint32_t v) +{ + XtensaCPU *cpu = xtensa_env_get_cpu(env); + + v = (v & 0xffffff00) | 0x1; + if (v != env->sregs[RASID]) { + env->sregs[RASID] = v; + tlb_flush(CPU(cpu), 1); + } +} + +static uint32_t get_page_size(const CPUXtensaState *env, bool dtlb, uint32_t way) +{ + uint32_t tlbcfg = env->sregs[dtlb ? DTLBCFG : ITLBCFG]; + + switch (way) { + case 4: + return (tlbcfg >> 16) & 0x3; + + case 5: + return (tlbcfg >> 20) & 0x1; + + case 6: + return (tlbcfg >> 24) & 0x1; + + default: + return 0; + } +} + +/*! + * Get bit mask for the virtual address bits translated by the TLB way + */ +uint32_t xtensa_tlb_get_addr_mask(const CPUXtensaState *env, bool dtlb, uint32_t way) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + bool varway56 = dtlb ? + env->config->dtlb.varway56 : + env->config->itlb.varway56; + + switch (way) { + case 4: + return 0xfff00000 << get_page_size(env, dtlb, way) * 2; + + case 5: + if (varway56) { + return 0xf8000000 << get_page_size(env, dtlb, way); + } else { + return 0xf8000000; + } + + case 6: + if (varway56) { + return 0xf0000000 << (1 - get_page_size(env, dtlb, way)); + } else { + return 0xf0000000; + } + + default: + return 0xfffff000; + } + } else { + return REGION_PAGE_MASK; + } +} + +/*! + * Get bit mask for the 'VPN without index' field. + * See ISA, 4.6.5.6, data format for RxTLB0 + */ +static uint32_t get_vpn_mask(const CPUXtensaState *env, bool dtlb, uint32_t way) +{ + if (way < 4) { + bool is32 = (dtlb ? + env->config->dtlb.nrefillentries : + env->config->itlb.nrefillentries) == 32; + return is32 ? 0xffff8000 : 0xffffc000; + } else if (way == 4) { + return xtensa_tlb_get_addr_mask(env, dtlb, way) << 2; + } else if (way <= 6) { + uint32_t mask = xtensa_tlb_get_addr_mask(env, dtlb, way); + bool varway56 = dtlb ? + env->config->dtlb.varway56 : + env->config->itlb.varway56; + + if (varway56) { + return mask << (way == 5 ? 2 : 3); + } else { + return mask << 1; + } + } else { + return 0xfffff000; + } +} + +/*! + * Split virtual address into VPN (with index) and entry index + * for the given TLB way + */ +void split_tlb_entry_spec_way(const CPUXtensaState *env, uint32_t v, bool dtlb, + uint32_t *vpn, uint32_t wi, uint32_t *ei) +{ + bool varway56 = dtlb ? + env->config->dtlb.varway56 : + env->config->itlb.varway56; + + if (!dtlb) { + wi &= 7; + } + + if (wi < 4) { + bool is32 = (dtlb ? + env->config->dtlb.nrefillentries : + env->config->itlb.nrefillentries) == 32; + *ei = (v >> 12) & (is32 ? 0x7 : 0x3); + } else { + switch (wi) { + case 4: + { + uint32_t eibase = 20 + get_page_size(env, dtlb, wi) * 2; + *ei = (v >> eibase) & 0x3; + } + break; + + case 5: + if (varway56) { + uint32_t eibase = 27 + get_page_size(env, dtlb, wi); + *ei = (v >> eibase) & 0x3; + } else { + *ei = (v >> 27) & 0x1; + } + break; + + case 6: + if (varway56) { + uint32_t eibase = 29 - get_page_size(env, dtlb, wi); + *ei = (v >> eibase) & 0x7; + } else { + *ei = (v >> 28) & 0x1; + } + break; + + default: + *ei = 0; + break; + } + } + *vpn = v & xtensa_tlb_get_addr_mask(env, dtlb, wi); +} + +/*! + * Split TLB address into TLB way, entry index and VPN (with index). + * See ISA, 4.6.5.5 - 4.6.5.8 for the TLB addressing format + */ +static void split_tlb_entry_spec(CPUXtensaState *env, uint32_t v, bool dtlb, + uint32_t *vpn, uint32_t *wi, uint32_t *ei) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + *wi = v & (dtlb ? 0xf : 0x7); + split_tlb_entry_spec_way(env, v, dtlb, vpn, *wi, ei); + } else { + *vpn = v & REGION_PAGE_MASK; + *wi = 0; + *ei = (v >> 29) & 0x7; + } +} + +static xtensa_tlb_entry *get_tlb_entry(CPUXtensaState *env, + uint32_t v, bool dtlb, uint32_t *pwi) +{ + uint32_t vpn; + uint32_t wi; + uint32_t ei; + + split_tlb_entry_spec(env, v, dtlb, &vpn, &wi, &ei); + if (pwi) { + *pwi = wi; + } + return xtensa_tlb_get_entry(env, dtlb, wi, ei); +} + +uint32_t HELPER(rtlb0)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + uint32_t wi; + const xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, &wi); + return (entry->vaddr & get_vpn_mask(env, dtlb, wi)) | entry->asid; + } else { + return v & REGION_PAGE_MASK; + } +} + +uint32_t HELPER(rtlb1)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) +{ + const xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, NULL); + return entry->paddr | entry->attr; +} + +void HELPER(itlb)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + uint32_t wi; + xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, &wi); + if (entry->variable && entry->asid) { + tlb_flush_page(CPU(xtensa_env_get_cpu(env)), entry->vaddr); + entry->asid = 0; + } + } +} + +uint32_t HELPER(ptlb)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + uint32_t wi; + uint32_t ei; + uint8_t ring; + int res = xtensa_tlb_lookup(env, v, dtlb, &wi, &ei, &ring); + + switch (res) { + case 0: + if (ring >= xtensa_get_ring(env)) { + return (v & 0xfffff000) | wi | (dtlb ? 0x10 : 0x8); + } + break; + + case INST_TLB_MULTI_HIT_CAUSE: + case LOAD_STORE_TLB_MULTI_HIT_CAUSE: + HELPER(exception_cause_vaddr)(env, env->pc, res, v); + break; + } + return 0; + } else { + return (v & REGION_PAGE_MASK) | 0x1; + } +} + +void xtensa_tlb_set_entry_mmu(const CPUXtensaState *env, + xtensa_tlb_entry *entry, bool dtlb, + unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte) +{ + entry->vaddr = vpn; + entry->paddr = pte & xtensa_tlb_get_addr_mask(env, dtlb, wi); + entry->asid = (env->sregs[RASID] >> ((pte >> 1) & 0x18)) & 0xff; + entry->attr = pte & 0xf; +} + +void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb, + unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte) +{ + XtensaCPU *cpu = xtensa_env_get_cpu(env); + CPUState *cs = CPU(cpu); + xtensa_tlb_entry *entry = xtensa_tlb_get_entry(env, dtlb, wi, ei); + + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + if (entry->variable) { + if (entry->asid) { + tlb_flush_page(cs, entry->vaddr); + } + xtensa_tlb_set_entry_mmu(env, entry, dtlb, wi, ei, vpn, pte); + tlb_flush_page(cs, entry->vaddr); + } else { + qemu_log("%s %d, %d, %d trying to set immutable entry\n", + __func__, dtlb, wi, ei); + } + } else { + tlb_flush_page(cs, entry->vaddr); + if (xtensa_option_enabled(env->config, + XTENSA_OPTION_REGION_TRANSLATION)) { + entry->paddr = pte & REGION_PAGE_MASK; + } + entry->attr = pte & 0xf; + } +} + +void HELPER(wtlb)(CPUXtensaState *env, uint32_t p, uint32_t v, uint32_t dtlb) +{ + uint32_t vpn; + uint32_t wi; + uint32_t ei; + split_tlb_entry_spec(env, v, dtlb, &vpn, &wi, &ei); + xtensa_tlb_set_entry(env, dtlb, wi, ei, vpn, p); +} + + +void HELPER(wsr_ibreakenable)(CPUXtensaState *env, uint32_t v) +{ + uint32_t change = v ^ env->sregs[IBREAKENABLE]; + unsigned i; + + for (i = 0; i < env->config->nibreak; ++i) { + if (change & (1 << i)) { + tb_invalidate_virtual_addr(env, env->sregs[IBREAKA + i]); + } + } + env->sregs[IBREAKENABLE] = v & ((1 << env->config->nibreak) - 1); +} + +void HELPER(wsr_ibreaka)(CPUXtensaState *env, uint32_t i, uint32_t v) +{ + if (env->sregs[IBREAKENABLE] & (1 << i) && env->sregs[IBREAKA + i] != v) { + tb_invalidate_virtual_addr(env, env->sregs[IBREAKA + i]); + tb_invalidate_virtual_addr(env, v); + } + env->sregs[IBREAKA + i] = v; +} + +static void set_dbreak(CPUXtensaState *env, unsigned i, uint32_t dbreaka, + uint32_t dbreakc) +{ + CPUState *cs = CPU(xtensa_env_get_cpu(env)); + int flags = BP_CPU | BP_STOP_BEFORE_ACCESS; + uint32_t mask = dbreakc | ~DBREAKC_MASK; + + if (env->cpu_watchpoint[i]) { + cpu_watchpoint_remove_by_ref(cs, env->cpu_watchpoint[i]); + } + if (dbreakc & DBREAKC_SB) { + flags |= BP_MEM_WRITE; + } + if (dbreakc & DBREAKC_LB) { + flags |= BP_MEM_READ; + } + /* contiguous mask after inversion is one less than some power of 2 */ + if ((~mask + 1) & ~mask) { + qemu_log("DBREAKC mask is not contiguous: 0x%08x\n", dbreakc); + /* cut mask after the first zero bit */ + mask = 0xffffffff << (32 - clo32(mask)); + } + if (cpu_watchpoint_insert(cs, dbreaka & mask, ~mask + 1, + flags, &env->cpu_watchpoint[i])) { + env->cpu_watchpoint[i] = NULL; + qemu_log("Failed to set data breakpoint at 0x%08x/%d\n", + dbreaka & mask, ~mask + 1); + } +} + +void HELPER(wsr_dbreaka)(CPUXtensaState *env, uint32_t i, uint32_t v) +{ + uint32_t dbreakc = env->sregs[DBREAKC + i]; + + if ((dbreakc & DBREAKC_SB_LB) && + env->sregs[DBREAKA + i] != v) { + set_dbreak(env, i, v, dbreakc); + } + env->sregs[DBREAKA + i] = v; +} + +void HELPER(wsr_dbreakc)(CPUXtensaState *env, uint32_t i, uint32_t v) +{ + if ((env->sregs[DBREAKC + i] ^ v) & (DBREAKC_SB_LB | DBREAKC_MASK)) { + if (v & DBREAKC_SB_LB) { + set_dbreak(env, i, env->sregs[DBREAKA + i], v); + } else { + if (env->cpu_watchpoint[i]) { + CPUState *cs = CPU(xtensa_env_get_cpu(env)); + + cpu_watchpoint_remove_by_ref(cs, env->cpu_watchpoint[i]); + env->cpu_watchpoint[i] = NULL; + } + } + } + env->sregs[DBREAKC + i] = v; +} + +void HELPER(wur_fcr)(CPUXtensaState *env, uint32_t v) +{ + static const int rounding_mode[] = { + float_round_nearest_even, + float_round_to_zero, + float_round_up, + float_round_down, + }; + + env->uregs[FCR] = v & 0xfffff07f; + set_float_rounding_mode(rounding_mode[v & 3], &env->fp_status); +} + +float32 HELPER(abs_s)(float32 v) +{ + return float32_abs(v); +} + +float32 HELPER(neg_s)(float32 v) +{ + return float32_chs(v); +} + +float32 HELPER(add_s)(CPUXtensaState *env, float32 a, float32 b) +{ + return float32_add(a, b, &env->fp_status); +} + +float32 HELPER(sub_s)(CPUXtensaState *env, float32 a, float32 b) +{ + return float32_sub(a, b, &env->fp_status); +} + +float32 HELPER(mul_s)(CPUXtensaState *env, float32 a, float32 b) +{ + return float32_mul(a, b, &env->fp_status); +} + +float32 HELPER(madd_s)(CPUXtensaState *env, float32 a, float32 b, float32 c) +{ + return float32_muladd(b, c, a, 0, + &env->fp_status); +} + +float32 HELPER(msub_s)(CPUXtensaState *env, float32 a, float32 b, float32 c) +{ + return float32_muladd(b, c, a, float_muladd_negate_product, + &env->fp_status); +} + +uint32_t HELPER(ftoi)(float32 v, uint32_t rounding_mode, uint32_t scale) +{ + float_status fp_status = {0}; + + set_float_rounding_mode(rounding_mode, &fp_status); + return float32_to_int32( + float32_scalbn(v, scale, &fp_status), &fp_status); +} + +uint32_t HELPER(ftoui)(float32 v, uint32_t rounding_mode, uint32_t scale) +{ + float_status fp_status = {0}; + float32 res; + + set_float_rounding_mode(rounding_mode, &fp_status); + + res = float32_scalbn(v, scale, &fp_status); + + if (float32_is_neg(v) && !float32_is_any_nan(v)) { + return float32_to_int32(res, &fp_status); + } else { + return float32_to_uint32(res, &fp_status); + } +} + +float32 HELPER(itof)(CPUXtensaState *env, uint32_t v, uint32_t scale) +{ + return float32_scalbn(int32_to_float32(v, &env->fp_status), + (int32_t)scale, &env->fp_status); +} + +float32 HELPER(uitof)(CPUXtensaState *env, uint32_t v, uint32_t scale) +{ + return float32_scalbn(uint32_to_float32(v, &env->fp_status), + (int32_t)scale, &env->fp_status); +} + +static inline void set_br(CPUXtensaState *env, bool v, uint32_t br) +{ + if (v) { + env->sregs[BR] |= br; + } else { + env->sregs[BR] &= ~br; + } +} + +void HELPER(un_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + set_br(env, float32_unordered_quiet(a, b, &env->fp_status), br); +} + +void HELPER(oeq_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + set_br(env, float32_eq_quiet(a, b, &env->fp_status), br); +} + +void HELPER(ueq_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + int v = float32_compare_quiet(a, b, &env->fp_status); + set_br(env, v == float_relation_equal || v == float_relation_unordered, br); +} + +void HELPER(olt_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + set_br(env, float32_lt_quiet(a, b, &env->fp_status), br); +} + +void HELPER(ult_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + int v = float32_compare_quiet(a, b, &env->fp_status); + set_br(env, v == float_relation_less || v == float_relation_unordered, br); +} + +void HELPER(ole_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + set_br(env, float32_le_quiet(a, b, &env->fp_status), br); +} + +void HELPER(ule_s)(CPUXtensaState *env, uint32_t br, float32 a, float32 b) +{ + int v = float32_compare_quiet(a, b, &env->fp_status); + set_br(env, v != float_relation_greater, br); +} diff --git a/src/target-xtensa/overlay_tool.h b/src/target-xtensa/overlay_tool.h new file mode 100644 index 0000000..e8a7fda --- /dev/null +++ b/src/target-xtensa/overlay_tool.h @@ -0,0 +1,602 @@ +/* + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#define XTREG(idx, ofs, bi, sz, al, no, flags, cp, typ, grp, name, \ + a1, a2, a3, a4, a5, a6) \ + { .targno = (no), .type = (typ), .group = (grp), .size = (sz) }, +#define XTREG_END { .targno = -1 }, + +#ifndef XCHAL_HAVE_DEPBITS +#define XCHAL_HAVE_DEPBITS 0 +#endif + +#ifndef XCHAL_HAVE_DIV32 +#define XCHAL_HAVE_DIV32 0 +#endif + +#ifndef XCHAL_UNALIGNED_LOAD_HW +#define XCHAL_UNALIGNED_LOAD_HW 0 +#endif + +#ifndef XCHAL_HAVE_VECBASE +#define XCHAL_HAVE_VECBASE 0 +#define XCHAL_VECBASE_RESET_VADDR 0 +#endif + +#ifndef XCHAL_HW_MIN_VERSION +#define XCHAL_HW_MIN_VERSION 0 +#endif + +#define XCHAL_OPTION(xchal, qemu) ((xchal) ? XTENSA_OPTION_BIT(qemu) : 0) + +#define XTENSA_OPTIONS ( \ + XCHAL_OPTION(XCHAL_HAVE_DENSITY, XTENSA_OPTION_CODE_DENSITY) | \ + XCHAL_OPTION(XCHAL_HAVE_LOOPS, XTENSA_OPTION_LOOP) | \ + XCHAL_OPTION(XCHAL_HAVE_ABSOLUTE_LITERALS, XTENSA_OPTION_EXTENDED_L32R) | \ + XCHAL_OPTION(XCHAL_HAVE_MUL16, XTENSA_OPTION_16_BIT_IMUL) | \ + XCHAL_OPTION(XCHAL_HAVE_MUL32, XTENSA_OPTION_32_BIT_IMUL) | \ + XCHAL_OPTION(XCHAL_HAVE_MUL32_HIGH, XTENSA_OPTION_32_BIT_IMUL_HIGH) | \ + XCHAL_OPTION(XCHAL_HAVE_DIV32, XTENSA_OPTION_32_BIT_IDIV) | \ + XCHAL_OPTION(XCHAL_HAVE_MAC16, XTENSA_OPTION_MAC16) | \ + XCHAL_OPTION(XCHAL_HAVE_NSA, XTENSA_OPTION_MISC_OP_NSA) | \ + XCHAL_OPTION(XCHAL_HAVE_MINMAX, XTENSA_OPTION_MISC_OP_MINMAX) | \ + XCHAL_OPTION(XCHAL_HAVE_SEXT, XTENSA_OPTION_MISC_OP_SEXT) | \ + XCHAL_OPTION(XCHAL_HAVE_CLAMPS, XTENSA_OPTION_MISC_OP_CLAMPS) | \ + XCHAL_OPTION(XCHAL_HAVE_CP, XTENSA_OPTION_COPROCESSOR) | \ + XCHAL_OPTION(XCHAL_HAVE_BOOLEANS, XTENSA_OPTION_BOOLEAN) | \ + XCHAL_OPTION(XCHAL_HAVE_FP, XTENSA_OPTION_FP_COPROCESSOR) | \ + XCHAL_OPTION(XCHAL_HAVE_RELEASE_SYNC, XTENSA_OPTION_MP_SYNCHRO) | \ + XCHAL_OPTION(XCHAL_HAVE_S32C1I, XTENSA_OPTION_CONDITIONAL_STORE) | \ + XCHAL_OPTION(XCHAL_HAVE_S32C1I && XCHAL_HW_MIN_VERSION >= 230000, \ + XTENSA_OPTION_ATOMCTL) | \ + XCHAL_OPTION(XCHAL_HAVE_DEPBITS, XTENSA_OPTION_DEPBITS) | \ + /* Interrupts and exceptions */ \ + XCHAL_OPTION(XCHAL_HAVE_EXCEPTIONS, XTENSA_OPTION_EXCEPTION) | \ + XCHAL_OPTION(XCHAL_HAVE_VECBASE, XTENSA_OPTION_RELOCATABLE_VECTOR) | \ + XCHAL_OPTION(XCHAL_UNALIGNED_LOAD_EXCEPTION, \ + XTENSA_OPTION_UNALIGNED_EXCEPTION) | \ + XCHAL_OPTION(XCHAL_HAVE_INTERRUPTS, XTENSA_OPTION_INTERRUPT) | \ + XCHAL_OPTION(XCHAL_HAVE_HIGHPRI_INTERRUPTS, \ + XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT) | \ + XCHAL_OPTION(XCHAL_HAVE_CCOUNT, XTENSA_OPTION_TIMER_INTERRUPT) | \ + /* Local memory, TODO */ \ + XCHAL_OPTION(XCHAL_ICACHE_WAYS, XTENSA_OPTION_ICACHE) | \ + XCHAL_OPTION(XCHAL_ICACHE_LINE_LOCKABLE, \ + XTENSA_OPTION_ICACHE_INDEX_LOCK) | \ + XCHAL_OPTION(XCHAL_DCACHE_WAYS, XTENSA_OPTION_DCACHE) | \ + XCHAL_OPTION(XCHAL_DCACHE_LINE_LOCKABLE, \ + XTENSA_OPTION_DCACHE_INDEX_LOCK) | \ + XCHAL_OPTION(XCHAL_UNALIGNED_LOAD_HW, XTENSA_OPTION_HW_ALIGNMENT) | \ + /* Memory protection and translation */ \ + XCHAL_OPTION(XCHAL_HAVE_MIMIC_CACHEATTR, \ + XTENSA_OPTION_REGION_PROTECTION) | \ + XCHAL_OPTION(XCHAL_HAVE_XLT_CACHEATTR, \ + XTENSA_OPTION_REGION_TRANSLATION) | \ + XCHAL_OPTION(XCHAL_HAVE_PTP_MMU, XTENSA_OPTION_MMU) | \ + XCHAL_OPTION(XCHAL_HAVE_CACHEATTR, XTENSA_OPTION_CACHEATTR) | \ + /* Other, TODO */ \ + XCHAL_OPTION(XCHAL_HAVE_WINDOWED, XTENSA_OPTION_WINDOWED_REGISTER) | \ + XCHAL_OPTION(XCHAL_HAVE_DEBUG, XTENSA_OPTION_DEBUG) |\ + XCHAL_OPTION(XCHAL_NUM_MISC_REGS > 0, XTENSA_OPTION_MISC_SR) | \ + XCHAL_OPTION(XCHAL_HAVE_THREADPTR, XTENSA_OPTION_THREAD_POINTER) | \ + XCHAL_OPTION(XCHAL_HAVE_PRID, XTENSA_OPTION_PROCESSOR_ID)) + +#ifndef XCHAL_WINDOW_OF4_VECOFS +#define XCHAL_WINDOW_OF4_VECOFS 0x00000000 +#define XCHAL_WINDOW_UF4_VECOFS 0x00000040 +#define XCHAL_WINDOW_OF8_VECOFS 0x00000080 +#define XCHAL_WINDOW_UF8_VECOFS 0x000000C0 +#define XCHAL_WINDOW_OF12_VECOFS 0x00000100 +#define XCHAL_WINDOW_UF12_VECOFS 0x00000140 +#endif + +#if XCHAL_HAVE_WINDOWED +#define WINDOW_VECTORS \ + [EXC_WINDOW_OVERFLOW4] = XCHAL_WINDOW_OF4_VECOFS + \ + XCHAL_WINDOW_VECTORS_VADDR, \ + [EXC_WINDOW_UNDERFLOW4] = XCHAL_WINDOW_UF4_VECOFS + \ + XCHAL_WINDOW_VECTORS_VADDR, \ + [EXC_WINDOW_OVERFLOW8] = XCHAL_WINDOW_OF8_VECOFS + \ + XCHAL_WINDOW_VECTORS_VADDR, \ + [EXC_WINDOW_UNDERFLOW8] = XCHAL_WINDOW_UF8_VECOFS + \ + XCHAL_WINDOW_VECTORS_VADDR, \ + [EXC_WINDOW_OVERFLOW12] = XCHAL_WINDOW_OF12_VECOFS + \ + XCHAL_WINDOW_VECTORS_VADDR, \ + [EXC_WINDOW_UNDERFLOW12] = XCHAL_WINDOW_UF12_VECOFS + \ + XCHAL_WINDOW_VECTORS_VADDR, +#else +#define WINDOW_VECTORS +#endif + +#define EXCEPTION_VECTORS { \ + [EXC_RESET] = XCHAL_RESET_VECTOR_VADDR, \ + WINDOW_VECTORS \ + [EXC_KERNEL] = XCHAL_KERNEL_VECTOR_VADDR, \ + [EXC_USER] = XCHAL_USER_VECTOR_VADDR, \ + [EXC_DOUBLE] = XCHAL_DOUBLEEXC_VECTOR_VADDR, \ + [EXC_DEBUG] = XCHAL_DEBUG_VECTOR_VADDR, \ + } + +#define INTERRUPT_VECTORS { \ + 0, \ + 0, \ + XCHAL_INTLEVEL2_VECTOR_VADDR, \ + XCHAL_INTLEVEL3_VECTOR_VADDR, \ + XCHAL_INTLEVEL4_VECTOR_VADDR, \ + XCHAL_INTLEVEL5_VECTOR_VADDR, \ + XCHAL_INTLEVEL6_VECTOR_VADDR, \ + XCHAL_INTLEVEL7_VECTOR_VADDR, \ + } + +#define LEVEL_MASKS { \ + [1] = XCHAL_INTLEVEL1_MASK, \ + [2] = XCHAL_INTLEVEL2_MASK, \ + [3] = XCHAL_INTLEVEL3_MASK, \ + [4] = XCHAL_INTLEVEL4_MASK, \ + [5] = XCHAL_INTLEVEL5_MASK, \ + [6] = XCHAL_INTLEVEL6_MASK, \ + [7] = XCHAL_INTLEVEL7_MASK, \ + } + +#define INTTYPE_MASKS { \ + [INTTYPE_EDGE] = XCHAL_INTTYPE_MASK_EXTERN_EDGE, \ + [INTTYPE_NMI] = XCHAL_INTTYPE_MASK_NMI, \ + [INTTYPE_SOFTWARE] = XCHAL_INTTYPE_MASK_SOFTWARE, \ + } + +#define XTHAL_INTTYPE_EXTERN_LEVEL INTTYPE_LEVEL +#define XTHAL_INTTYPE_EXTERN_EDGE INTTYPE_EDGE +#define XTHAL_INTTYPE_NMI INTTYPE_NMI +#define XTHAL_INTTYPE_SOFTWARE INTTYPE_SOFTWARE +#define XTHAL_INTTYPE_TIMER INTTYPE_TIMER +#define XTHAL_INTTYPE_TBD1 INTTYPE_DEBUG +#define XTHAL_INTTYPE_TBD2 INTTYPE_WRITE_ERR +#define XTHAL_INTTYPE_WRITE_ERROR INTTYPE_WRITE_ERR +#define XTHAL_INTTYPE_PROFILING INTTYPE_PROFILING + + +#define INTERRUPT(i) { \ + .level = XCHAL_INT ## i ## _LEVEL, \ + .inttype = XCHAL_INT ## i ## _TYPE, \ + } + +#define INTERRUPTS { \ + [0] = INTERRUPT(0), \ + [1] = INTERRUPT(1), \ + [2] = INTERRUPT(2), \ + [3] = INTERRUPT(3), \ + [4] = INTERRUPT(4), \ + [5] = INTERRUPT(5), \ + [6] = INTERRUPT(6), \ + [7] = INTERRUPT(7), \ + [8] = INTERRUPT(8), \ + [9] = INTERRUPT(9), \ + [10] = INTERRUPT(10), \ + [11] = INTERRUPT(11), \ + [12] = INTERRUPT(12), \ + [13] = INTERRUPT(13), \ + [14] = INTERRUPT(14), \ + [15] = INTERRUPT(15), \ + [16] = INTERRUPT(16), \ + [17] = INTERRUPT(17), \ + [18] = INTERRUPT(18), \ + [19] = INTERRUPT(19), \ + [20] = INTERRUPT(20), \ + [21] = INTERRUPT(21), \ + [22] = INTERRUPT(22), \ + [23] = INTERRUPT(23), \ + [24] = INTERRUPT(24), \ + [25] = INTERRUPT(25), \ + [26] = INTERRUPT(26), \ + [27] = INTERRUPT(27), \ + [28] = INTERRUPT(28), \ + [29] = INTERRUPT(29), \ + [30] = INTERRUPT(30), \ + [31] = INTERRUPT(31), \ + } + +#define TIMERINTS { \ + [0] = XCHAL_TIMER0_INTERRUPT, \ + [1] = XCHAL_TIMER1_INTERRUPT, \ + [2] = XCHAL_TIMER2_INTERRUPT, \ + } + +#define EXTINTS { \ + [0] = XCHAL_EXTINT0_NUM, \ + [1] = XCHAL_EXTINT1_NUM, \ + [2] = XCHAL_EXTINT2_NUM, \ + [3] = XCHAL_EXTINT3_NUM, \ + [4] = XCHAL_EXTINT4_NUM, \ + [5] = XCHAL_EXTINT5_NUM, \ + [6] = XCHAL_EXTINT6_NUM, \ + [7] = XCHAL_EXTINT7_NUM, \ + [8] = XCHAL_EXTINT8_NUM, \ + [9] = XCHAL_EXTINT9_NUM, \ + [10] = XCHAL_EXTINT10_NUM, \ + [11] = XCHAL_EXTINT11_NUM, \ + [12] = XCHAL_EXTINT12_NUM, \ + [13] = XCHAL_EXTINT13_NUM, \ + [14] = XCHAL_EXTINT14_NUM, \ + [15] = XCHAL_EXTINT15_NUM, \ + [16] = XCHAL_EXTINT16_NUM, \ + [17] = XCHAL_EXTINT17_NUM, \ + [18] = XCHAL_EXTINT18_NUM, \ + [19] = XCHAL_EXTINT19_NUM, \ + [20] = XCHAL_EXTINT20_NUM, \ + [21] = XCHAL_EXTINT21_NUM, \ + [22] = XCHAL_EXTINT22_NUM, \ + [23] = XCHAL_EXTINT23_NUM, \ + [24] = XCHAL_EXTINT24_NUM, \ + [25] = XCHAL_EXTINT25_NUM, \ + [26] = XCHAL_EXTINT26_NUM, \ + [27] = XCHAL_EXTINT27_NUM, \ + [28] = XCHAL_EXTINT28_NUM, \ + [29] = XCHAL_EXTINT29_NUM, \ + [30] = XCHAL_EXTINT30_NUM, \ + [31] = XCHAL_EXTINT31_NUM, \ + } + +#define EXCEPTIONS_SECTION \ + .excm_level = XCHAL_EXCM_LEVEL, \ + .vecbase = XCHAL_VECBASE_RESET_VADDR, \ + .exception_vector = EXCEPTION_VECTORS + +#define INTERRUPTS_SECTION \ + .ninterrupt = XCHAL_NUM_INTERRUPTS, \ + .nlevel = XCHAL_NUM_INTLEVELS, \ + .interrupt_vector = INTERRUPT_VECTORS, \ + .level_mask = LEVEL_MASKS, \ + .inttype_mask = INTTYPE_MASKS, \ + .interrupt = INTERRUPTS, \ + .nccompare = XCHAL_NUM_TIMERS, \ + .timerint = TIMERINTS, \ + .nextint = XCHAL_NUM_EXTINTERRUPTS, \ + .extint = EXTINTS + +#if XCHAL_HAVE_PTP_MMU + +#define TLB_TEMPLATE(ways, refill_way_size, way56) { \ + .nways = ways, \ + .way_size = { \ + (refill_way_size), (refill_way_size), \ + (refill_way_size), (refill_way_size), \ + 4, (way56) ? 4 : 2, (way56) ? 8 : 2, 1, 1, 1, \ + }, \ + .varway56 = (way56), \ + .nrefillentries = (refill_way_size) * 4, \ + } + +#define ITLB(varway56) \ + TLB_TEMPLATE(7, 1 << XCHAL_ITLB_ARF_ENTRIES_LOG2, varway56) + +#define DTLB(varway56) \ + TLB_TEMPLATE(10, 1 << XCHAL_DTLB_ARF_ENTRIES_LOG2, varway56) + +#define TLB_SECTION \ + .itlb = ITLB(XCHAL_HAVE_SPANNING_WAY), \ + .dtlb = DTLB(XCHAL_HAVE_SPANNING_WAY) + +#elif XCHAL_HAVE_XLT_CACHEATTR || XCHAL_HAVE_MIMIC_CACHEATTR + +#define TLB_TEMPLATE { \ + .nways = 1, \ + .way_size = { \ + 8, \ + } \ + } + +#define TLB_SECTION \ + .itlb = TLB_TEMPLATE, \ + .dtlb = TLB_TEMPLATE + +#endif + +#if (defined(TARGET_WORDS_BIGENDIAN) != 0) == (XCHAL_HAVE_BE != 0) +#define REGISTER_CORE(core) \ + static void __attribute__((constructor)) register_core(void) \ + { \ + static XtensaConfigList node = { \ + .config = &core, \ + }; \ + xtensa_finalize_config(&core); \ + xtensa_register_core(&node); \ + } +#else +#define REGISTER_CORE(core) +#endif + +#define DEBUG_SECTION \ + .debug_level = XCHAL_DEBUGLEVEL, \ + .nibreak = XCHAL_NUM_IBREAK, \ + .ndbreak = XCHAL_NUM_DBREAK + +#define CONFIG_SECTION \ + .configid = { \ + XCHAL_HW_CONFIGID0, \ + XCHAL_HW_CONFIGID1, \ + } + +#define DEFAULT_SECTIONS \ + .options = XTENSA_OPTIONS, \ + .nareg = XCHAL_NUM_AREGS, \ + .ndepc = (XCHAL_XEA_VERSION >= 2), \ + EXCEPTIONS_SECTION, \ + INTERRUPTS_SECTION, \ + TLB_SECTION, \ + DEBUG_SECTION, \ + CONFIG_SECTION + + +#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI + 1 <= 2 +#define XCHAL_INTLEVEL2_VECTOR_VADDR 0 +#endif +#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI + 1 <= 3 +#define XCHAL_INTLEVEL3_VECTOR_VADDR 0 +#endif +#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI + 1 <= 4 +#define XCHAL_INTLEVEL4_VECTOR_VADDR 0 +#endif +#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI + 1 <= 5 +#define XCHAL_INTLEVEL5_VECTOR_VADDR 0 +#endif +#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI + 1 <= 6 +#define XCHAL_INTLEVEL6_VECTOR_VADDR 0 +#endif +#if XCHAL_NUM_INTLEVELS + XCHAL_HAVE_NMI + 1 <= 7 +#define XCHAL_INTLEVEL7_VECTOR_VADDR 0 +#endif + + +#if XCHAL_NUM_INTERRUPTS <= 0 +#define XCHAL_INT0_LEVEL 0 +#define XCHAL_INT0_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 1 +#define XCHAL_INT1_LEVEL 0 +#define XCHAL_INT1_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 2 +#define XCHAL_INT2_LEVEL 0 +#define XCHAL_INT2_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 3 +#define XCHAL_INT3_LEVEL 0 +#define XCHAL_INT3_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 4 +#define XCHAL_INT4_LEVEL 0 +#define XCHAL_INT4_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 5 +#define XCHAL_INT5_LEVEL 0 +#define XCHAL_INT5_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 6 +#define XCHAL_INT6_LEVEL 0 +#define XCHAL_INT6_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 7 +#define XCHAL_INT7_LEVEL 0 +#define XCHAL_INT7_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 8 +#define XCHAL_INT8_LEVEL 0 +#define XCHAL_INT8_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 9 +#define XCHAL_INT9_LEVEL 0 +#define XCHAL_INT9_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 10 +#define XCHAL_INT10_LEVEL 0 +#define XCHAL_INT10_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 11 +#define XCHAL_INT11_LEVEL 0 +#define XCHAL_INT11_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 12 +#define XCHAL_INT12_LEVEL 0 +#define XCHAL_INT12_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 13 +#define XCHAL_INT13_LEVEL 0 +#define XCHAL_INT13_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 14 +#define XCHAL_INT14_LEVEL 0 +#define XCHAL_INT14_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 15 +#define XCHAL_INT15_LEVEL 0 +#define XCHAL_INT15_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 16 +#define XCHAL_INT16_LEVEL 0 +#define XCHAL_INT16_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 17 +#define XCHAL_INT17_LEVEL 0 +#define XCHAL_INT17_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 18 +#define XCHAL_INT18_LEVEL 0 +#define XCHAL_INT18_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 19 +#define XCHAL_INT19_LEVEL 0 +#define XCHAL_INT19_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 20 +#define XCHAL_INT20_LEVEL 0 +#define XCHAL_INT20_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 21 +#define XCHAL_INT21_LEVEL 0 +#define XCHAL_INT21_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 22 +#define XCHAL_INT22_LEVEL 0 +#define XCHAL_INT22_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 23 +#define XCHAL_INT23_LEVEL 0 +#define XCHAL_INT23_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 24 +#define XCHAL_INT24_LEVEL 0 +#define XCHAL_INT24_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 25 +#define XCHAL_INT25_LEVEL 0 +#define XCHAL_INT25_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 26 +#define XCHAL_INT26_LEVEL 0 +#define XCHAL_INT26_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 27 +#define XCHAL_INT27_LEVEL 0 +#define XCHAL_INT27_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 28 +#define XCHAL_INT28_LEVEL 0 +#define XCHAL_INT28_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 29 +#define XCHAL_INT29_LEVEL 0 +#define XCHAL_INT29_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 30 +#define XCHAL_INT30_LEVEL 0 +#define XCHAL_INT30_TYPE 0 +#endif +#if XCHAL_NUM_INTERRUPTS <= 31 +#define XCHAL_INT31_LEVEL 0 +#define XCHAL_INT31_TYPE 0 +#endif + + +#if XCHAL_NUM_EXTINTERRUPTS <= 0 +#define XCHAL_EXTINT0_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 1 +#define XCHAL_EXTINT1_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 2 +#define XCHAL_EXTINT2_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 3 +#define XCHAL_EXTINT3_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 4 +#define XCHAL_EXTINT4_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 5 +#define XCHAL_EXTINT5_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 6 +#define XCHAL_EXTINT6_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 7 +#define XCHAL_EXTINT7_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 8 +#define XCHAL_EXTINT8_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 9 +#define XCHAL_EXTINT9_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 10 +#define XCHAL_EXTINT10_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 11 +#define XCHAL_EXTINT11_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 12 +#define XCHAL_EXTINT12_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 13 +#define XCHAL_EXTINT13_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 14 +#define XCHAL_EXTINT14_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 15 +#define XCHAL_EXTINT15_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 16 +#define XCHAL_EXTINT16_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 17 +#define XCHAL_EXTINT17_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 18 +#define XCHAL_EXTINT18_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 19 +#define XCHAL_EXTINT19_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 20 +#define XCHAL_EXTINT20_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 21 +#define XCHAL_EXTINT21_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 22 +#define XCHAL_EXTINT22_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 23 +#define XCHAL_EXTINT23_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 24 +#define XCHAL_EXTINT24_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 25 +#define XCHAL_EXTINT25_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 26 +#define XCHAL_EXTINT26_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 27 +#define XCHAL_EXTINT27_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 28 +#define XCHAL_EXTINT28_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 29 +#define XCHAL_EXTINT29_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 30 +#define XCHAL_EXTINT30_NUM 0 +#endif +#if XCHAL_NUM_EXTINTERRUPTS <= 31 +#define XCHAL_EXTINT31_NUM 0 +#endif + + +#define XTHAL_TIMER_UNCONFIGURED 0 diff --git a/src/target-xtensa/translate.c b/src/target-xtensa/translate.c new file mode 100644 index 0000000..06b0163 --- /dev/null +++ b/src/target-xtensa/translate.c @@ -0,0 +1,3216 @@ +/* + * Xtensa ISA: + * http://www.tensilica.com/products/literature-docs/documentation/xtensa-isa-databook.htm + * + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <stdio.h> + +#include "cpu.h" +#include "exec/exec-all.h" +#include "disas/disas.h" +#include "tcg-op.h" +#include "qemu/log.h" +#include "sysemu/sysemu.h" +#include "exec/cpu_ldst.h" +#include "exec/semihost.h" + +#include "exec/helper-proto.h" +#include "exec/helper-gen.h" + +#include "trace-tcg.h" + + +typedef struct DisasContext { + const XtensaConfig *config; + TranslationBlock *tb; + uint32_t pc; + uint32_t next_pc; + int cring; + int ring; + uint32_t lbeg; + uint32_t lend; + TCGv_i32 litbase; + int is_jmp; + int singlestep_enabled; + + bool sar_5bit; + bool sar_m32_5bit; + bool sar_m32_allocated; + TCGv_i32 sar_m32; + + uint32_t ccount_delta; + unsigned window; + + bool debug; + bool icount; + TCGv_i32 next_icount; + + unsigned cpenable; +} DisasContext; + +static TCGv_ptr cpu_env; +static TCGv_i32 cpu_pc; +static TCGv_i32 cpu_R[16]; +static TCGv_i32 cpu_FR[16]; +static TCGv_i32 cpu_SR[256]; +static TCGv_i32 cpu_UR[256]; + +#include "exec/gen-icount.h" + +typedef struct XtensaReg { + const char *name; + uint64_t opt_bits; + enum { + SR_R = 1, + SR_W = 2, + SR_X = 4, + SR_RW = 3, + SR_RWX = 7, + } access; +} XtensaReg; + +#define XTENSA_REG_ACCESS(regname, opt, acc) { \ + .name = (regname), \ + .opt_bits = XTENSA_OPTION_BIT(opt), \ + .access = (acc), \ + } + +#define XTENSA_REG(regname, opt) XTENSA_REG_ACCESS(regname, opt, SR_RWX) + +#define XTENSA_REG_BITS_ACCESS(regname, opt, acc) { \ + .name = (regname), \ + .opt_bits = (opt), \ + .access = (acc), \ + } + +#define XTENSA_REG_BITS(regname, opt) \ + XTENSA_REG_BITS_ACCESS(regname, opt, SR_RWX) + +static const XtensaReg sregnames[256] = { + [LBEG] = XTENSA_REG("LBEG", XTENSA_OPTION_LOOP), + [LEND] = XTENSA_REG("LEND", XTENSA_OPTION_LOOP), + [LCOUNT] = XTENSA_REG("LCOUNT", XTENSA_OPTION_LOOP), + [SAR] = XTENSA_REG_BITS("SAR", XTENSA_OPTION_ALL), + [BR] = XTENSA_REG("BR", XTENSA_OPTION_BOOLEAN), + [LITBASE] = XTENSA_REG("LITBASE", XTENSA_OPTION_EXTENDED_L32R), + [SCOMPARE1] = XTENSA_REG("SCOMPARE1", XTENSA_OPTION_CONDITIONAL_STORE), + [ACCLO] = XTENSA_REG("ACCLO", XTENSA_OPTION_MAC16), + [ACCHI] = XTENSA_REG("ACCHI", XTENSA_OPTION_MAC16), + [MR] = XTENSA_REG("MR0", XTENSA_OPTION_MAC16), + [MR + 1] = XTENSA_REG("MR1", XTENSA_OPTION_MAC16), + [MR + 2] = XTENSA_REG("MR2", XTENSA_OPTION_MAC16), + [MR + 3] = XTENSA_REG("MR3", XTENSA_OPTION_MAC16), + [WINDOW_BASE] = XTENSA_REG("WINDOW_BASE", XTENSA_OPTION_WINDOWED_REGISTER), + [WINDOW_START] = XTENSA_REG("WINDOW_START", + XTENSA_OPTION_WINDOWED_REGISTER), + [PTEVADDR] = XTENSA_REG("PTEVADDR", XTENSA_OPTION_MMU), + [RASID] = XTENSA_REG("RASID", XTENSA_OPTION_MMU), + [ITLBCFG] = XTENSA_REG("ITLBCFG", XTENSA_OPTION_MMU), + [DTLBCFG] = XTENSA_REG("DTLBCFG", XTENSA_OPTION_MMU), + [IBREAKENABLE] = XTENSA_REG("IBREAKENABLE", XTENSA_OPTION_DEBUG), + [CACHEATTR] = XTENSA_REG("CACHEATTR", XTENSA_OPTION_CACHEATTR), + [ATOMCTL] = XTENSA_REG("ATOMCTL", XTENSA_OPTION_ATOMCTL), + [IBREAKA] = XTENSA_REG("IBREAKA0", XTENSA_OPTION_DEBUG), + [IBREAKA + 1] = XTENSA_REG("IBREAKA1", XTENSA_OPTION_DEBUG), + [DBREAKA] = XTENSA_REG("DBREAKA0", XTENSA_OPTION_DEBUG), + [DBREAKA + 1] = XTENSA_REG("DBREAKA1", XTENSA_OPTION_DEBUG), + [DBREAKC] = XTENSA_REG("DBREAKC0", XTENSA_OPTION_DEBUG), + [DBREAKC + 1] = XTENSA_REG("DBREAKC1", XTENSA_OPTION_DEBUG), + [CONFIGID0] = XTENSA_REG_BITS_ACCESS("CONFIGID0", XTENSA_OPTION_ALL, SR_R), + [EPC1] = XTENSA_REG("EPC1", XTENSA_OPTION_EXCEPTION), + [EPC1 + 1] = XTENSA_REG("EPC2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPC1 + 2] = XTENSA_REG("EPC3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPC1 + 3] = XTENSA_REG("EPC4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPC1 + 4] = XTENSA_REG("EPC5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPC1 + 5] = XTENSA_REG("EPC6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPC1 + 6] = XTENSA_REG("EPC7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [DEPC] = XTENSA_REG("DEPC", XTENSA_OPTION_EXCEPTION), + [EPS2] = XTENSA_REG("EPS2", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPS2 + 1] = XTENSA_REG("EPS3", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPS2 + 2] = XTENSA_REG("EPS4", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPS2 + 3] = XTENSA_REG("EPS5", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPS2 + 4] = XTENSA_REG("EPS6", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EPS2 + 5] = XTENSA_REG("EPS7", XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [CONFIGID1] = XTENSA_REG_BITS_ACCESS("CONFIGID1", XTENSA_OPTION_ALL, SR_R), + [EXCSAVE1] = XTENSA_REG("EXCSAVE1", XTENSA_OPTION_EXCEPTION), + [EXCSAVE1 + 1] = XTENSA_REG("EXCSAVE2", + XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EXCSAVE1 + 2] = XTENSA_REG("EXCSAVE3", + XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EXCSAVE1 + 3] = XTENSA_REG("EXCSAVE4", + XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EXCSAVE1 + 4] = XTENSA_REG("EXCSAVE5", + XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EXCSAVE1 + 5] = XTENSA_REG("EXCSAVE6", + XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [EXCSAVE1 + 6] = XTENSA_REG("EXCSAVE7", + XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT), + [CPENABLE] = XTENSA_REG("CPENABLE", XTENSA_OPTION_COPROCESSOR), + [INTSET] = XTENSA_REG_ACCESS("INTSET", XTENSA_OPTION_INTERRUPT, SR_RW), + [INTCLEAR] = XTENSA_REG_ACCESS("INTCLEAR", XTENSA_OPTION_INTERRUPT, SR_W), + [INTENABLE] = XTENSA_REG("INTENABLE", XTENSA_OPTION_INTERRUPT), + [PS] = XTENSA_REG_BITS("PS", XTENSA_OPTION_ALL), + [VECBASE] = XTENSA_REG("VECBASE", XTENSA_OPTION_RELOCATABLE_VECTOR), + [EXCCAUSE] = XTENSA_REG("EXCCAUSE", XTENSA_OPTION_EXCEPTION), + [DEBUGCAUSE] = XTENSA_REG_ACCESS("DEBUGCAUSE", XTENSA_OPTION_DEBUG, SR_R), + [CCOUNT] = XTENSA_REG("CCOUNT", XTENSA_OPTION_TIMER_INTERRUPT), + [PRID] = XTENSA_REG_ACCESS("PRID", XTENSA_OPTION_PROCESSOR_ID, SR_R), + [ICOUNT] = XTENSA_REG("ICOUNT", XTENSA_OPTION_DEBUG), + [ICOUNTLEVEL] = XTENSA_REG("ICOUNTLEVEL", XTENSA_OPTION_DEBUG), + [EXCVADDR] = XTENSA_REG("EXCVADDR", XTENSA_OPTION_EXCEPTION), + [CCOMPARE] = XTENSA_REG("CCOMPARE0", XTENSA_OPTION_TIMER_INTERRUPT), + [CCOMPARE + 1] = XTENSA_REG("CCOMPARE1", + XTENSA_OPTION_TIMER_INTERRUPT), + [CCOMPARE + 2] = XTENSA_REG("CCOMPARE2", + XTENSA_OPTION_TIMER_INTERRUPT), + [MISC] = XTENSA_REG("MISC0", XTENSA_OPTION_MISC_SR), + [MISC + 1] = XTENSA_REG("MISC1", XTENSA_OPTION_MISC_SR), + [MISC + 2] = XTENSA_REG("MISC2", XTENSA_OPTION_MISC_SR), + [MISC + 3] = XTENSA_REG("MISC3", XTENSA_OPTION_MISC_SR), +}; + +static const XtensaReg uregnames[256] = { + [THREADPTR] = XTENSA_REG("THREADPTR", XTENSA_OPTION_THREAD_POINTER), + [FCR] = XTENSA_REG("FCR", XTENSA_OPTION_FP_COPROCESSOR), + [FSR] = XTENSA_REG("FSR", XTENSA_OPTION_FP_COPROCESSOR), +}; + +void xtensa_translate_init(void) +{ + static const char * const regnames[] = { + "ar0", "ar1", "ar2", "ar3", + "ar4", "ar5", "ar6", "ar7", + "ar8", "ar9", "ar10", "ar11", + "ar12", "ar13", "ar14", "ar15", + }; + static const char * const fregnames[] = { + "f0", "f1", "f2", "f3", + "f4", "f5", "f6", "f7", + "f8", "f9", "f10", "f11", + "f12", "f13", "f14", "f15", + }; + int i; + + cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); + cpu_pc = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUXtensaState, pc), "pc"); + + for (i = 0; i < 16; i++) { + cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUXtensaState, regs[i]), + regnames[i]); + } + + for (i = 0; i < 16; i++) { + cpu_FR[i] = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUXtensaState, fregs[i].f32[FP_F32_LOW]), + fregnames[i]); + } + + for (i = 0; i < 256; ++i) { + if (sregnames[i].name) { + cpu_SR[i] = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUXtensaState, sregs[i]), + sregnames[i].name); + } + } + + for (i = 0; i < 256; ++i) { + if (uregnames[i].name) { + cpu_UR[i] = tcg_global_mem_new_i32(TCG_AREG0, + offsetof(CPUXtensaState, uregs[i]), + uregnames[i].name); + } + } +} + +static inline bool option_bits_enabled(DisasContext *dc, uint64_t opt) +{ + return xtensa_option_bits_enabled(dc->config, opt); +} + +static inline bool option_enabled(DisasContext *dc, int opt) +{ + return xtensa_option_enabled(dc->config, opt); +} + +static void init_litbase(DisasContext *dc) +{ + if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { + dc->litbase = tcg_temp_local_new_i32(); + tcg_gen_andi_i32(dc->litbase, cpu_SR[LITBASE], 0xfffff000); + } +} + +static void reset_litbase(DisasContext *dc) +{ + if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { + tcg_temp_free(dc->litbase); + } +} + +static void init_sar_tracker(DisasContext *dc) +{ + dc->sar_5bit = false; + dc->sar_m32_5bit = false; + dc->sar_m32_allocated = false; +} + +static void reset_sar_tracker(DisasContext *dc) +{ + if (dc->sar_m32_allocated) { + tcg_temp_free(dc->sar_m32); + } +} + +static void gen_right_shift_sar(DisasContext *dc, TCGv_i32 sa) +{ + tcg_gen_andi_i32(cpu_SR[SAR], sa, 0x1f); + if (dc->sar_m32_5bit) { + tcg_gen_discard_i32(dc->sar_m32); + } + dc->sar_5bit = true; + dc->sar_m32_5bit = false; +} + +static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa) +{ + TCGv_i32 tmp = tcg_const_i32(32); + if (!dc->sar_m32_allocated) { + dc->sar_m32 = tcg_temp_local_new_i32(); + dc->sar_m32_allocated = true; + } + tcg_gen_andi_i32(dc->sar_m32, sa, 0x1f); + tcg_gen_sub_i32(cpu_SR[SAR], tmp, dc->sar_m32); + dc->sar_5bit = false; + dc->sar_m32_5bit = true; + tcg_temp_free(tmp); +} + +static void gen_advance_ccount(DisasContext *dc) +{ + if (dc->ccount_delta > 0) { + TCGv_i32 tmp = tcg_const_i32(dc->ccount_delta); + gen_helper_advance_ccount(cpu_env, tmp); + tcg_temp_free(tmp); + } + dc->ccount_delta = 0; +} + +static void gen_exception(DisasContext *dc, int excp) +{ + TCGv_i32 tmp = tcg_const_i32(excp); + gen_advance_ccount(dc); + gen_helper_exception(cpu_env, tmp); + tcg_temp_free(tmp); +} + +static void gen_exception_cause(DisasContext *dc, uint32_t cause) +{ + TCGv_i32 tpc = tcg_const_i32(dc->pc); + TCGv_i32 tcause = tcg_const_i32(cause); + gen_advance_ccount(dc); + gen_helper_exception_cause(cpu_env, tpc, tcause); + tcg_temp_free(tpc); + tcg_temp_free(tcause); + if (cause == ILLEGAL_INSTRUCTION_CAUSE || + cause == SYSCALL_CAUSE) { + dc->is_jmp = DISAS_UPDATE; + } +} + +static void gen_exception_cause_vaddr(DisasContext *dc, uint32_t cause, + TCGv_i32 vaddr) +{ + TCGv_i32 tpc = tcg_const_i32(dc->pc); + TCGv_i32 tcause = tcg_const_i32(cause); + gen_advance_ccount(dc); + gen_helper_exception_cause_vaddr(cpu_env, tpc, tcause, vaddr); + tcg_temp_free(tpc); + tcg_temp_free(tcause); +} + +static void gen_debug_exception(DisasContext *dc, uint32_t cause) +{ + TCGv_i32 tpc = tcg_const_i32(dc->pc); + TCGv_i32 tcause = tcg_const_i32(cause); + gen_advance_ccount(dc); + gen_helper_debug_exception(cpu_env, tpc, tcause); + tcg_temp_free(tpc); + tcg_temp_free(tcause); + if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) { + dc->is_jmp = DISAS_UPDATE; + } +} + +static bool gen_check_privilege(DisasContext *dc) +{ + if (dc->cring) { + gen_exception_cause(dc, PRIVILEGED_CAUSE); + dc->is_jmp = DISAS_UPDATE; + return false; + } + return true; +} + +static bool gen_check_cpenable(DisasContext *dc, unsigned cp) +{ + if (option_enabled(dc, XTENSA_OPTION_COPROCESSOR) && + !(dc->cpenable & (1 << cp))) { + gen_exception_cause(dc, COPROCESSOR0_DISABLED + cp); + dc->is_jmp = DISAS_UPDATE; + return false; + } + return true; +} + +static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot) +{ + tcg_gen_mov_i32(cpu_pc, dest); + gen_advance_ccount(dc); + if (dc->icount) { + tcg_gen_mov_i32(cpu_SR[ICOUNT], dc->next_icount); + } + if (dc->singlestep_enabled) { + gen_exception(dc, EXCP_DEBUG); + } else { + if (slot >= 0) { + tcg_gen_goto_tb(slot); + tcg_gen_exit_tb((uintptr_t)dc->tb + slot); + } else { + tcg_gen_exit_tb(0); + } + } + dc->is_jmp = DISAS_UPDATE; +} + +static void gen_jump(DisasContext *dc, TCGv dest) +{ + gen_jump_slot(dc, dest, -1); +} + +static void gen_jumpi(DisasContext *dc, uint32_t dest, int slot) +{ + TCGv_i32 tmp = tcg_const_i32(dest); + if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) { + slot = -1; + } + gen_jump_slot(dc, tmp, slot); + tcg_temp_free(tmp); +} + +static void gen_callw_slot(DisasContext *dc, int callinc, TCGv_i32 dest, + int slot) +{ + TCGv_i32 tcallinc = tcg_const_i32(callinc); + + tcg_gen_deposit_i32(cpu_SR[PS], cpu_SR[PS], + tcallinc, PS_CALLINC_SHIFT, PS_CALLINC_LEN); + tcg_temp_free(tcallinc); + tcg_gen_movi_i32(cpu_R[callinc << 2], + (callinc << 30) | (dc->next_pc & 0x3fffffff)); + gen_jump_slot(dc, dest, slot); +} + +static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest) +{ + gen_callw_slot(dc, callinc, dest, -1); +} + +static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot) +{ + TCGv_i32 tmp = tcg_const_i32(dest); + if (((dc->tb->pc ^ dest) & TARGET_PAGE_MASK) != 0) { + slot = -1; + } + gen_callw_slot(dc, callinc, tmp, slot); + tcg_temp_free(tmp); +} + +static bool gen_check_loop_end(DisasContext *dc, int slot) +{ + if (option_enabled(dc, XTENSA_OPTION_LOOP) && + !(dc->tb->flags & XTENSA_TBFLAG_EXCM) && + dc->next_pc == dc->lend) { + TCGLabel *label = gen_new_label(); + + gen_advance_ccount(dc); + tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label); + tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1); + gen_jumpi(dc, dc->lbeg, slot); + gen_set_label(label); + gen_jumpi(dc, dc->next_pc, -1); + return true; + } + return false; +} + +static void gen_jumpi_check_loop_end(DisasContext *dc, int slot) +{ + if (!gen_check_loop_end(dc, slot)) { + gen_jumpi(dc, dc->next_pc, slot); + } +} + +static void gen_brcond(DisasContext *dc, TCGCond cond, + TCGv_i32 t0, TCGv_i32 t1, uint32_t offset) +{ + TCGLabel *label = gen_new_label(); + + gen_advance_ccount(dc); + tcg_gen_brcond_i32(cond, t0, t1, label); + gen_jumpi_check_loop_end(dc, 0); + gen_set_label(label); + gen_jumpi(dc, dc->pc + offset, 1); +} + +static void gen_brcondi(DisasContext *dc, TCGCond cond, + TCGv_i32 t0, uint32_t t1, uint32_t offset) +{ + TCGv_i32 tmp = tcg_const_i32(t1); + gen_brcond(dc, cond, t0, tmp, offset); + tcg_temp_free(tmp); +} + +static bool gen_check_sr(DisasContext *dc, uint32_t sr, unsigned access) +{ + if (!xtensa_option_bits_enabled(dc->config, sregnames[sr].opt_bits)) { + if (sregnames[sr].name) { + qemu_log("SR %s is not configured\n", sregnames[sr].name); + } else { + qemu_log("SR %d is not implemented\n", sr); + } + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + return false; + } else if (!(sregnames[sr].access & access)) { + static const char * const access_text[] = { + [SR_R] = "rsr", + [SR_W] = "wsr", + [SR_X] = "xsr", + }; + assert(access < ARRAY_SIZE(access_text) && access_text[access]); + qemu_log("SR %s is not available for %s\n", sregnames[sr].name, + access_text[access]); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + return false; + } + return true; +} + +static void gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr) +{ + gen_advance_ccount(dc); + tcg_gen_mov_i32(d, cpu_SR[sr]); +} + +static void gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr) +{ + tcg_gen_shri_i32(d, cpu_SR[EXCVADDR], 10); + tcg_gen_or_i32(d, d, cpu_SR[sr]); + tcg_gen_andi_i32(d, d, 0xfffffffc); +} + +static void gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr) +{ + static void (* const rsr_handler[256])(DisasContext *dc, + TCGv_i32 d, uint32_t sr) = { + [CCOUNT] = gen_rsr_ccount, + [PTEVADDR] = gen_rsr_ptevaddr, + }; + + if (rsr_handler[sr]) { + rsr_handler[sr](dc, d, sr); + } else { + tcg_gen_mov_i32(d, cpu_SR[sr]); + } +} + +static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + gen_helper_wsr_lbeg(cpu_env, s); + gen_jumpi_check_loop_end(dc, 0); +} + +static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + gen_helper_wsr_lend(cpu_env, s); + gen_jumpi_check_loop_end(dc, 0); +} + +static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f); + if (dc->sar_m32_5bit) { + tcg_gen_discard_i32(dc->sar_m32); + } + dc->sar_5bit = false; + dc->sar_m32_5bit = false; +} + +static void gen_wsr_br(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + tcg_gen_andi_i32(cpu_SR[sr], s, 0xffff); +} + +static void gen_wsr_litbase(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + tcg_gen_andi_i32(cpu_SR[sr], s, 0xfffff001); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + tcg_gen_ext8s_i32(cpu_SR[sr], s); +} + +static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + gen_helper_wsr_windowbase(cpu_env, v); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, (1 << dc->config->nareg / 4) - 1); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_ptevaddr(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, 0xffc00000); +} + +static void gen_wsr_rasid(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + gen_helper_wsr_rasid(cpu_env, v); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_tlbcfg(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, 0x01130000); +} + +static void gen_wsr_ibreakenable(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + gen_helper_wsr_ibreakenable(cpu_env, v); + gen_jumpi_check_loop_end(dc, 0); +} + +static void gen_wsr_atomctl(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, 0x3f); +} + +static void gen_wsr_ibreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + unsigned id = sr - IBREAKA; + + if (id < dc->config->nibreak) { + TCGv_i32 tmp = tcg_const_i32(id); + gen_helper_wsr_ibreaka(cpu_env, tmp, v); + tcg_temp_free(tmp); + gen_jumpi_check_loop_end(dc, 0); + } +} + +static void gen_wsr_dbreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + unsigned id = sr - DBREAKA; + + if (id < dc->config->ndbreak) { + TCGv_i32 tmp = tcg_const_i32(id); + gen_helper_wsr_dbreaka(cpu_env, tmp, v); + tcg_temp_free(tmp); + } +} + +static void gen_wsr_dbreakc(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + unsigned id = sr - DBREAKC; + + if (id < dc->config->ndbreak) { + TCGv_i32 tmp = tcg_const_i32(id); + gen_helper_wsr_dbreakc(cpu_env, tmp, v); + tcg_temp_free(tmp); + } +} + +static void gen_wsr_cpenable(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, 0xff); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_intset(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, + dc->config->inttype_mask[INTTYPE_SOFTWARE]); + gen_helper_check_interrupts(cpu_env); + gen_jumpi_check_loop_end(dc, 0); +} + +static void gen_wsr_intclear(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_andi_i32(tmp, v, + dc->config->inttype_mask[INTTYPE_EDGE] | + dc->config->inttype_mask[INTTYPE_NMI] | + dc->config->inttype_mask[INTTYPE_SOFTWARE]); + tcg_gen_andc_i32(cpu_SR[INTSET], cpu_SR[INTSET], tmp); + tcg_temp_free(tmp); + gen_helper_check_interrupts(cpu_env); +} + +static void gen_wsr_intenable(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_mov_i32(cpu_SR[sr], v); + gen_helper_check_interrupts(cpu_env); + gen_jumpi_check_loop_end(dc, 0); +} + +static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB | + PS_UM | PS_EXCM | PS_INTLEVEL; + + if (option_enabled(dc, XTENSA_OPTION_MMU)) { + mask |= PS_RING; + } + tcg_gen_andi_i32(cpu_SR[sr], v, mask); + gen_helper_check_interrupts(cpu_env); + /* This can change mmu index and tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_icount(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + if (dc->icount) { + tcg_gen_mov_i32(dc->next_icount, v); + } else { + tcg_gen_mov_i32(cpu_SR[sr], v); + } +} + +static void gen_wsr_icountlevel(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + tcg_gen_andi_i32(cpu_SR[sr], v, 0xf); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); +} + +static void gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + uint32_t id = sr - CCOMPARE; + if (id < dc->config->nccompare) { + uint32_t int_bit = 1 << dc->config->timerint[id]; + gen_advance_ccount(dc); + tcg_gen_mov_i32(cpu_SR[sr], v); + tcg_gen_andi_i32(cpu_SR[INTSET], cpu_SR[INTSET], ~int_bit); + gen_helper_check_interrupts(cpu_env); + } +} + +static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s) +{ + static void (* const wsr_handler[256])(DisasContext *dc, + uint32_t sr, TCGv_i32 v) = { + [LBEG] = gen_wsr_lbeg, + [LEND] = gen_wsr_lend, + [SAR] = gen_wsr_sar, + [BR] = gen_wsr_br, + [LITBASE] = gen_wsr_litbase, + [ACCHI] = gen_wsr_acchi, + [WINDOW_BASE] = gen_wsr_windowbase, + [WINDOW_START] = gen_wsr_windowstart, + [PTEVADDR] = gen_wsr_ptevaddr, + [RASID] = gen_wsr_rasid, + [ITLBCFG] = gen_wsr_tlbcfg, + [DTLBCFG] = gen_wsr_tlbcfg, + [IBREAKENABLE] = gen_wsr_ibreakenable, + [ATOMCTL] = gen_wsr_atomctl, + [IBREAKA] = gen_wsr_ibreaka, + [IBREAKA + 1] = gen_wsr_ibreaka, + [DBREAKA] = gen_wsr_dbreaka, + [DBREAKA + 1] = gen_wsr_dbreaka, + [DBREAKC] = gen_wsr_dbreakc, + [DBREAKC + 1] = gen_wsr_dbreakc, + [CPENABLE] = gen_wsr_cpenable, + [INTSET] = gen_wsr_intset, + [INTCLEAR] = gen_wsr_intclear, + [INTENABLE] = gen_wsr_intenable, + [PS] = gen_wsr_ps, + [ICOUNT] = gen_wsr_icount, + [ICOUNTLEVEL] = gen_wsr_icountlevel, + [CCOMPARE] = gen_wsr_ccompare, + [CCOMPARE + 1] = gen_wsr_ccompare, + [CCOMPARE + 2] = gen_wsr_ccompare, + }; + + if (wsr_handler[sr]) { + wsr_handler[sr](dc, sr, s); + } else { + tcg_gen_mov_i32(cpu_SR[sr], s); + } +} + +static void gen_wur(uint32_t ur, TCGv_i32 s) +{ + switch (ur) { + case FCR: + gen_helper_wur_fcr(cpu_env, s); + break; + + case FSR: + tcg_gen_andi_i32(cpu_UR[ur], s, 0xffffff80); + break; + + default: + tcg_gen_mov_i32(cpu_UR[ur], s); + break; + } +} + +static void gen_load_store_alignment(DisasContext *dc, int shift, + TCGv_i32 addr, bool no_hw_alignment) +{ + if (!option_enabled(dc, XTENSA_OPTION_UNALIGNED_EXCEPTION)) { + tcg_gen_andi_i32(addr, addr, ~0 << shift); + } else if (option_enabled(dc, XTENSA_OPTION_HW_ALIGNMENT) && + no_hw_alignment) { + TCGLabel *label = gen_new_label(); + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_andi_i32(tmp, addr, ~(~0 << shift)); + tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label); + gen_exception_cause_vaddr(dc, LOAD_STORE_ALIGNMENT_CAUSE, addr); + gen_set_label(label); + tcg_temp_free(tmp); + } +} + +static void gen_waiti(DisasContext *dc, uint32_t imm4) +{ + TCGv_i32 pc = tcg_const_i32(dc->next_pc); + TCGv_i32 intlevel = tcg_const_i32(imm4); + gen_advance_ccount(dc); + gen_helper_waiti(cpu_env, pc, intlevel); + tcg_temp_free(pc); + tcg_temp_free(intlevel); +} + +static bool gen_window_check1(DisasContext *dc, unsigned r1) +{ + if (r1 / 4 > dc->window) { + TCGv_i32 pc = tcg_const_i32(dc->pc); + TCGv_i32 w = tcg_const_i32(r1 / 4); + + gen_advance_ccount(dc); + gen_helper_window_check(cpu_env, pc, w); + dc->is_jmp = DISAS_UPDATE; + return false; + } + return true; +} + +static bool gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2) +{ + return gen_window_check1(dc, r1 > r2 ? r1 : r2); +} + +static bool gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2, + unsigned r3) +{ + return gen_window_check2(dc, r1, r2 > r3 ? r2 : r3); +} + +static TCGv_i32 gen_mac16_m(TCGv_i32 v, bool hi, bool is_unsigned) +{ + TCGv_i32 m = tcg_temp_new_i32(); + + if (hi) { + (is_unsigned ? tcg_gen_shri_i32 : tcg_gen_sari_i32)(m, v, 16); + } else { + (is_unsigned ? tcg_gen_ext16u_i32 : tcg_gen_ext16s_i32)(m, v); + } + return m; +} + +static inline unsigned xtensa_op0_insn_len(unsigned op0) +{ + return op0 >= 8 ? 2 : 3; +} + +static void disas_xtensa_insn(CPUXtensaState *env, DisasContext *dc) +{ +#define HAS_OPTION_BITS(opt) do { \ + if (!option_bits_enabled(dc, opt)) { \ + qemu_log("Option is not enabled %s:%d\n", \ + __FILE__, __LINE__); \ + goto invalid_opcode; \ + } \ + } while (0) + +#define HAS_OPTION(opt) HAS_OPTION_BITS(XTENSA_OPTION_BIT(opt)) + +#define TBD() qemu_log("TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__) +#define RESERVED() do { \ + qemu_log("RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \ + dc->pc, b0, b1, b2, __FILE__, __LINE__); \ + goto invalid_opcode; \ + } while (0) + + +#ifdef TARGET_WORDS_BIGENDIAN +#define OP0 (((b0) & 0xf0) >> 4) +#define OP1 (((b2) & 0xf0) >> 4) +#define OP2 ((b2) & 0xf) +#define RRR_R ((b1) & 0xf) +#define RRR_S (((b1) & 0xf0) >> 4) +#define RRR_T ((b0) & 0xf) +#else +#define OP0 (((b0) & 0xf)) +#define OP1 (((b2) & 0xf)) +#define OP2 (((b2) & 0xf0) >> 4) +#define RRR_R (((b1) & 0xf0) >> 4) +#define RRR_S (((b1) & 0xf)) +#define RRR_T (((b0) & 0xf0) >> 4) +#endif +#define RRR_X ((RRR_R & 0x4) >> 2) +#define RRR_Y ((RRR_T & 0x4) >> 2) +#define RRR_W (RRR_R & 0x3) + +#define RRRN_R RRR_R +#define RRRN_S RRR_S +#define RRRN_T RRR_T + +#define RRI4_R RRR_R +#define RRI4_S RRR_S +#define RRI4_T RRR_T +#ifdef TARGET_WORDS_BIGENDIAN +#define RRI4_IMM4 ((b2) & 0xf) +#else +#define RRI4_IMM4 (((b2) & 0xf0) >> 4) +#endif + +#define RRI8_R RRR_R +#define RRI8_S RRR_S +#define RRI8_T RRR_T +#define RRI8_IMM8 (b2) +#define RRI8_IMM8_SE ((((b2) & 0x80) ? 0xffffff00 : 0) | RRI8_IMM8) + +#ifdef TARGET_WORDS_BIGENDIAN +#define RI16_IMM16 (((b1) << 8) | (b2)) +#else +#define RI16_IMM16 (((b2) << 8) | (b1)) +#endif + +#ifdef TARGET_WORDS_BIGENDIAN +#define CALL_N (((b0) & 0xc) >> 2) +#define CALL_OFFSET ((((b0) & 0x3) << 16) | ((b1) << 8) | (b2)) +#else +#define CALL_N (((b0) & 0x30) >> 4) +#define CALL_OFFSET ((((b0) & 0xc0) >> 6) | ((b1) << 2) | ((b2) << 10)) +#endif +#define CALL_OFFSET_SE \ + (((CALL_OFFSET & 0x20000) ? 0xfffc0000 : 0) | CALL_OFFSET) + +#define CALLX_N CALL_N +#ifdef TARGET_WORDS_BIGENDIAN +#define CALLX_M ((b0) & 0x3) +#else +#define CALLX_M (((b0) & 0xc0) >> 6) +#endif +#define CALLX_S RRR_S + +#define BRI12_M CALLX_M +#define BRI12_S RRR_S +#ifdef TARGET_WORDS_BIGENDIAN +#define BRI12_IMM12 ((((b1) & 0xf) << 8) | (b2)) +#else +#define BRI12_IMM12 ((((b1) & 0xf0) >> 4) | ((b2) << 4)) +#endif +#define BRI12_IMM12_SE (((BRI12_IMM12 & 0x800) ? 0xfffff000 : 0) | BRI12_IMM12) + +#define BRI8_M BRI12_M +#define BRI8_R RRI8_R +#define BRI8_S RRI8_S +#define BRI8_IMM8 RRI8_IMM8 +#define BRI8_IMM8_SE RRI8_IMM8_SE + +#define RSR_SR (b1) + + uint8_t b0 = cpu_ldub_code(env, dc->pc); + uint8_t b1 = cpu_ldub_code(env, dc->pc + 1); + uint8_t b2 = 0; + unsigned len = xtensa_op0_insn_len(OP0); + + static const uint32_t B4CONST[] = { + 0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 + }; + + static const uint32_t B4CONSTU[] = { + 32768, 65536, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256 + }; + + switch (len) { + case 2: + HAS_OPTION(XTENSA_OPTION_CODE_DENSITY); + break; + + case 3: + b2 = cpu_ldub_code(env, dc->pc + 2); + break; + + default: + RESERVED(); + } + dc->next_pc = dc->pc + len; + + switch (OP0) { + case 0: /*QRST*/ + switch (OP1) { + case 0: /*RST0*/ + switch (OP2) { + case 0: /*ST0*/ + if ((RRR_R & 0xc) == 0x8) { + HAS_OPTION(XTENSA_OPTION_BOOLEAN); + } + + switch (RRR_R) { + case 0: /*SNM0*/ + switch (CALLX_M) { + case 0: /*ILL*/ + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + break; + + case 1: /*reserved*/ + RESERVED(); + break; + + case 2: /*JR*/ + switch (CALLX_N) { + case 0: /*RET*/ + case 2: /*JX*/ + if (gen_window_check1(dc, CALLX_S)) { + gen_jump(dc, cpu_R[CALLX_S]); + } + break; + + case 1: /*RETWw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + { + TCGv_i32 tmp = tcg_const_i32(dc->pc); + gen_advance_ccount(dc); + gen_helper_retw(tmp, cpu_env, tmp); + gen_jump(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 3: /*reserved*/ + RESERVED(); + break; + } + break; + + case 3: /*CALLX*/ + if (!gen_window_check2(dc, CALLX_S, CALLX_N << 2)) { + break; + } + switch (CALLX_N) { + case 0: /*CALLX0*/ + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); + tcg_gen_movi_i32(cpu_R[0], dc->next_pc); + gen_jump(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 1: /*CALLX4w*/ + case 2: /*CALLX8w*/ + case 3: /*CALLX12w*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]); + gen_callw(dc, CALLX_N, tmp); + tcg_temp_free(tmp); + } + break; + } + break; + } + break; + + case 1: /*MOVSPw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + if (gen_window_check2(dc, RRR_T, RRR_S)) { + TCGv_i32 pc = tcg_const_i32(dc->pc); + gen_advance_ccount(dc); + gen_helper_movsp(cpu_env, pc); + tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]); + tcg_temp_free(pc); + } + break; + + case 2: /*SYNC*/ + switch (RRR_T) { + case 0: /*ISYNC*/ + break; + + case 1: /*RSYNC*/ + break; + + case 2: /*ESYNC*/ + break; + + case 3: /*DSYNC*/ + break; + + case 8: /*EXCW*/ + HAS_OPTION(XTENSA_OPTION_EXCEPTION); + break; + + case 12: /*MEMW*/ + break; + + case 13: /*EXTW*/ + break; + + case 15: /*NOP*/ + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 3: /*RFEIx*/ + switch (RRR_T) { + case 0: /*RFETx*/ + HAS_OPTION(XTENSA_OPTION_EXCEPTION); + switch (RRR_S) { + case 0: /*RFEx*/ + if (gen_check_privilege(dc)) { + tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); + gen_helper_check_interrupts(cpu_env); + gen_jump(dc, cpu_SR[EPC1]); + } + break; + + case 1: /*RFUEx*/ + RESERVED(); + break; + + case 2: /*RFDEx*/ + if (gen_check_privilege(dc)) { + gen_jump(dc, cpu_SR[ + dc->config->ndepc ? DEPC : EPC1]); + } + break; + + case 4: /*RFWOw*/ + case 5: /*RFWUw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + if (gen_check_privilege(dc)) { + TCGv_i32 tmp = tcg_const_i32(1); + + tcg_gen_andi_i32( + cpu_SR[PS], cpu_SR[PS], ~PS_EXCM); + tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]); + + if (RRR_S == 4) { + tcg_gen_andc_i32(cpu_SR[WINDOW_START], + cpu_SR[WINDOW_START], tmp); + } else { + tcg_gen_or_i32(cpu_SR[WINDOW_START], + cpu_SR[WINDOW_START], tmp); + } + + gen_helper_restore_owb(cpu_env); + gen_helper_check_interrupts(cpu_env); + gen_jump(dc, cpu_SR[EPC1]); + + tcg_temp_free(tmp); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 1: /*RFIx*/ + HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT); + if (RRR_S >= 2 && RRR_S <= dc->config->nlevel) { + if (gen_check_privilege(dc)) { + tcg_gen_mov_i32(cpu_SR[PS], + cpu_SR[EPS2 + RRR_S - 2]); + gen_helper_check_interrupts(cpu_env); + gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]); + } + } else { + qemu_log("RFI %d is illegal\n", RRR_S); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + } + break; + + case 2: /*RFME*/ + TBD(); + break; + + default: /*reserved*/ + RESERVED(); + break; + + } + break; + + case 4: /*BREAKx*/ + HAS_OPTION(XTENSA_OPTION_DEBUG); + if (dc->debug) { + gen_debug_exception(dc, DEBUGCAUSE_BI); + } + break; + + case 5: /*SYSCALLx*/ + HAS_OPTION(XTENSA_OPTION_EXCEPTION); + switch (RRR_S) { + case 0: /*SYSCALLx*/ + gen_exception_cause(dc, SYSCALL_CAUSE); + break; + + case 1: /*SIMCALL*/ + if (semihosting_enabled()) { + if (gen_check_privilege(dc)) { + gen_helper_simcall(cpu_env); + } + } else { + qemu_log("SIMCALL but semihosting is disabled\n"); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + } + break; + + default: + RESERVED(); + break; + } + break; + + case 6: /*RSILx*/ + HAS_OPTION(XTENSA_OPTION_INTERRUPT); + if (gen_check_privilege(dc) && + gen_window_check1(dc, RRR_T)) { + tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]); + tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_INTLEVEL); + tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S); + gen_helper_check_interrupts(cpu_env); + gen_jumpi_check_loop_end(dc, 0); + } + break; + + case 7: /*WAITIx*/ + HAS_OPTION(XTENSA_OPTION_INTERRUPT); + if (gen_check_privilege(dc)) { + gen_waiti(dc, RRR_S); + } + break; + + case 8: /*ANY4p*/ + case 9: /*ALL4p*/ + case 10: /*ANY8p*/ + case 11: /*ALL8p*/ + HAS_OPTION(XTENSA_OPTION_BOOLEAN); + { + const unsigned shift = (RRR_R & 2) ? 8 : 4; + TCGv_i32 mask = tcg_const_i32( + ((1 << shift) - 1) << RRR_S); + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_and_i32(tmp, cpu_SR[BR], mask); + if (RRR_R & 1) { /*ALL*/ + tcg_gen_addi_i32(tmp, tmp, 1 << RRR_S); + } else { /*ANY*/ + tcg_gen_add_i32(tmp, tmp, mask); + } + tcg_gen_shri_i32(tmp, tmp, RRR_S + shift); + tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], + tmp, RRR_T, 1); + tcg_temp_free(mask); + tcg_temp_free(tmp); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + + } + break; + + case 1: /*AND*/ + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + } + break; + + case 2: /*OR*/ + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + } + break; + + case 3: /*XOR*/ + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + } + break; + + case 4: /*ST1*/ + switch (RRR_R) { + case 0: /*SSR*/ + if (gen_window_check1(dc, RRR_S)) { + gen_right_shift_sar(dc, cpu_R[RRR_S]); + } + break; + + case 1: /*SSL*/ + if (gen_window_check1(dc, RRR_S)) { + gen_left_shift_sar(dc, cpu_R[RRR_S]); + } + break; + + case 2: /*SSA8L*/ + if (gen_window_check1(dc, RRR_S)) { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); + gen_right_shift_sar(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 3: /*SSA8B*/ + if (gen_window_check1(dc, RRR_S)) { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3); + gen_left_shift_sar(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 4: /*SSAI*/ + { + TCGv_i32 tmp = tcg_const_i32( + RRR_S | ((RRR_T & 1) << 4)); + gen_right_shift_sar(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 6: /*RER*/ + TBD(); + break; + + case 7: /*WER*/ + TBD(); + break; + + case 8: /*ROTWw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + if (gen_check_privilege(dc)) { + TCGv_i32 tmp = tcg_const_i32( + RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0)); + gen_helper_rotw(cpu_env, tmp); + tcg_temp_free(tmp); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); + } + break; + + case 14: /*NSAu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA); + if (gen_window_check2(dc, RRR_S, RRR_T)) { + gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]); + } + break; + + case 15: /*NSAUu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA); + if (gen_window_check2(dc, RRR_S, RRR_T)) { + gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 5: /*TLB*/ + HAS_OPTION_BITS( + XTENSA_OPTION_BIT(XTENSA_OPTION_MMU) | + XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) | + XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION)); + if (gen_check_privilege(dc) && + gen_window_check2(dc, RRR_S, RRR_T)) { + TCGv_i32 dtlb = tcg_const_i32((RRR_R & 8) != 0); + + switch (RRR_R & 7) { + case 3: /*RITLB0*/ /*RDTLB0*/ + gen_helper_rtlb0(cpu_R[RRR_T], + cpu_env, cpu_R[RRR_S], dtlb); + break; + + case 4: /*IITLB*/ /*IDTLB*/ + gen_helper_itlb(cpu_env, cpu_R[RRR_S], dtlb); + /* This could change memory mapping, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); + break; + + case 5: /*PITLB*/ /*PDTLB*/ + tcg_gen_movi_i32(cpu_pc, dc->pc); + gen_helper_ptlb(cpu_R[RRR_T], + cpu_env, cpu_R[RRR_S], dtlb); + break; + + case 6: /*WITLB*/ /*WDTLB*/ + gen_helper_wtlb( + cpu_env, cpu_R[RRR_T], cpu_R[RRR_S], dtlb); + /* This could change memory mapping, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); + break; + + case 7: /*RITLB1*/ /*RDTLB1*/ + gen_helper_rtlb1(cpu_R[RRR_T], + cpu_env, cpu_R[RRR_S], dtlb); + break; + + default: + tcg_temp_free(dtlb); + RESERVED(); + break; + } + tcg_temp_free(dtlb); + } + break; + + case 6: /*RT0*/ + if (!gen_window_check2(dc, RRR_R, RRR_T)) { + break; + } + switch (RRR_S) { + case 0: /*NEG*/ + tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]); + break; + + case 1: /*ABS*/ + { + TCGv_i32 zero = tcg_const_i32(0); + TCGv_i32 neg = tcg_temp_new_i32(); + + tcg_gen_neg_i32(neg, cpu_R[RRR_T]); + tcg_gen_movcond_i32(TCG_COND_GE, cpu_R[RRR_R], + cpu_R[RRR_T], zero, cpu_R[RRR_T], neg); + tcg_temp_free(neg); + tcg_temp_free(zero); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 7: /*reserved*/ + RESERVED(); + break; + + case 8: /*ADD*/ + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + } + break; + + case 9: /*ADD**/ + case 10: + case 11: + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8); + tcg_gen_add_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); + tcg_temp_free(tmp); + } + break; + + case 12: /*SUB*/ + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + } + break; + + case 13: /*SUB**/ + case 14: + case 15: + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12); + tcg_gen_sub_i32(cpu_R[RRR_R], tmp, cpu_R[RRR_T]); + tcg_temp_free(tmp); + } + break; + } + break; + + case 1: /*RST1*/ + switch (OP2) { + case 0: /*SLLI*/ + case 1: + if (gen_window_check2(dc, RRR_R, RRR_S)) { + tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S], + 32 - (RRR_T | ((OP2 & 1) << 4))); + } + break; + + case 2: /*SRAI*/ + case 3: + if (gen_window_check2(dc, RRR_R, RRR_T)) { + tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T], + RRR_S | ((OP2 & 1) << 4)); + } + break; + + case 4: /*SRLI*/ + if (gen_window_check2(dc, RRR_R, RRR_T)) { + tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S); + } + break; + + case 6: /*XSR*/ + if (gen_check_sr(dc, RSR_SR, SR_X) && + (RSR_SR < 64 || gen_check_privilege(dc)) && + gen_window_check1(dc, RRR_T)) { + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_mov_i32(tmp, cpu_R[RRR_T]); + gen_rsr(dc, cpu_R[RRR_T], RSR_SR); + gen_wsr(dc, RSR_SR, tmp); + tcg_temp_free(tmp); + } + break; + + /* + * Note: 64 bit ops are used here solely because SAR values + * have range 0..63 + */ +#define gen_shift_reg(cmd, reg) do { \ + TCGv_i64 tmp = tcg_temp_new_i64(); \ + tcg_gen_extu_i32_i64(tmp, reg); \ + tcg_gen_##cmd##_i64(v, v, tmp); \ + tcg_gen_extrl_i64_i32(cpu_R[RRR_R], v); \ + tcg_temp_free_i64(v); \ + tcg_temp_free_i64(tmp); \ + } while (0) + +#define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR]) + + case 8: /*SRC*/ + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + TCGv_i64 v = tcg_temp_new_i64(); + tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]); + gen_shift(shr); + } + break; + + case 9: /*SRL*/ + if (!gen_window_check2(dc, RRR_R, RRR_T)) { + break; + } + if (dc->sar_5bit) { + tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); + } else { + TCGv_i64 v = tcg_temp_new_i64(); + tcg_gen_extu_i32_i64(v, cpu_R[RRR_T]); + gen_shift(shr); + } + break; + + case 10: /*SLL*/ + if (!gen_window_check2(dc, RRR_R, RRR_S)) { + break; + } + if (dc->sar_m32_5bit) { + tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32); + } else { + TCGv_i64 v = tcg_temp_new_i64(); + TCGv_i32 s = tcg_const_i32(32); + tcg_gen_sub_i32(s, s, cpu_SR[SAR]); + tcg_gen_andi_i32(s, s, 0x3f); + tcg_gen_extu_i32_i64(v, cpu_R[RRR_S]); + gen_shift_reg(shl, s); + tcg_temp_free(s); + } + break; + + case 11: /*SRA*/ + if (!gen_window_check2(dc, RRR_R, RRR_T)) { + break; + } + if (dc->sar_5bit) { + tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]); + } else { + TCGv_i64 v = tcg_temp_new_i64(); + tcg_gen_ext_i32_i64(v, cpu_R[RRR_T]); + gen_shift(sar); + } + break; +#undef gen_shift +#undef gen_shift_reg + + case 12: /*MUL16U*/ + HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + TCGv_i32 v1 = tcg_temp_new_i32(); + TCGv_i32 v2 = tcg_temp_new_i32(); + tcg_gen_ext16u_i32(v1, cpu_R[RRR_S]); + tcg_gen_ext16u_i32(v2, cpu_R[RRR_T]); + tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); + tcg_temp_free(v2); + tcg_temp_free(v1); + } + break; + + case 13: /*MUL16S*/ + HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL); + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + TCGv_i32 v1 = tcg_temp_new_i32(); + TCGv_i32 v2 = tcg_temp_new_i32(); + tcg_gen_ext16s_i32(v1, cpu_R[RRR_S]); + tcg_gen_ext16s_i32(v2, cpu_R[RRR_T]); + tcg_gen_mul_i32(cpu_R[RRR_R], v1, v2); + tcg_temp_free(v2); + tcg_temp_free(v1); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 2: /*RST2*/ + if (OP2 >= 8 && !gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + break; + } + + if (OP2 >= 12) { + HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV); + TCGLabel *label = gen_new_label(); + tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0, label); + gen_exception_cause(dc, INTEGER_DIVIDE_BY_ZERO_CAUSE); + gen_set_label(label); + } + + switch (OP2) { +#define BOOLEAN_LOGIC(fn, r, s, t) \ + do { \ + HAS_OPTION(XTENSA_OPTION_BOOLEAN); \ + TCGv_i32 tmp1 = tcg_temp_new_i32(); \ + TCGv_i32 tmp2 = tcg_temp_new_i32(); \ + \ + tcg_gen_shri_i32(tmp1, cpu_SR[BR], s); \ + tcg_gen_shri_i32(tmp2, cpu_SR[BR], t); \ + tcg_gen_##fn##_i32(tmp1, tmp1, tmp2); \ + tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], tmp1, r, 1); \ + tcg_temp_free(tmp1); \ + tcg_temp_free(tmp2); \ + } while (0) + + case 0: /*ANDBp*/ + BOOLEAN_LOGIC(and, RRR_R, RRR_S, RRR_T); + break; + + case 1: /*ANDBCp*/ + BOOLEAN_LOGIC(andc, RRR_R, RRR_S, RRR_T); + break; + + case 2: /*ORBp*/ + BOOLEAN_LOGIC(or, RRR_R, RRR_S, RRR_T); + break; + + case 3: /*ORBCp*/ + BOOLEAN_LOGIC(orc, RRR_R, RRR_S, RRR_T); + break; + + case 4: /*XORBp*/ + BOOLEAN_LOGIC(xor, RRR_R, RRR_S, RRR_T); + break; + +#undef BOOLEAN_LOGIC + + case 8: /*MULLi*/ + HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL); + tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 10: /*MULUHi*/ + case 11: /*MULSHi*/ + HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL_HIGH); + { + TCGv lo = tcg_temp_new(); + + if (OP2 == 10) { + tcg_gen_mulu2_i32(lo, cpu_R[RRR_R], + cpu_R[RRR_S], cpu_R[RRR_T]); + } else { + tcg_gen_muls2_i32(lo, cpu_R[RRR_R], + cpu_R[RRR_S], cpu_R[RRR_T]); + } + tcg_temp_free(lo); + } + break; + + case 12: /*QUOUi*/ + tcg_gen_divu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + case 13: /*QUOSi*/ + case 15: /*REMSi*/ + { + TCGLabel *label1 = gen_new_label(); + TCGLabel *label2 = gen_new_label(); + + tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_S], 0x80000000, + label1); + tcg_gen_brcondi_i32(TCG_COND_NE, cpu_R[RRR_T], 0xffffffff, + label1); + tcg_gen_movi_i32(cpu_R[RRR_R], + OP2 == 13 ? 0x80000000 : 0); + tcg_gen_br(label2); + gen_set_label(label1); + if (OP2 == 13) { + tcg_gen_div_i32(cpu_R[RRR_R], + cpu_R[RRR_S], cpu_R[RRR_T]); + } else { + tcg_gen_rem_i32(cpu_R[RRR_R], + cpu_R[RRR_S], cpu_R[RRR_T]); + } + gen_set_label(label2); + } + break; + + case 14: /*REMUi*/ + tcg_gen_remu_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]); + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 3: /*RST3*/ + switch (OP2) { + case 0: /*RSR*/ + if (gen_check_sr(dc, RSR_SR, SR_R) && + (RSR_SR < 64 || gen_check_privilege(dc)) && + gen_window_check1(dc, RRR_T)) { + gen_rsr(dc, cpu_R[RRR_T], RSR_SR); + } + break; + + case 1: /*WSR*/ + if (gen_check_sr(dc, RSR_SR, SR_W) && + (RSR_SR < 64 || gen_check_privilege(dc)) && + gen_window_check1(dc, RRR_T)) { + gen_wsr(dc, RSR_SR, cpu_R[RRR_T]); + } + break; + + case 2: /*SEXTu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT); + if (gen_window_check2(dc, RRR_R, RRR_S)) { + int shift = 24 - RRR_T; + + if (shift == 24) { + tcg_gen_ext8s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); + } else if (shift == 16) { + tcg_gen_ext16s_i32(cpu_R[RRR_R], cpu_R[RRR_S]); + } else { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shli_i32(tmp, cpu_R[RRR_S], shift); + tcg_gen_sari_i32(cpu_R[RRR_R], tmp, shift); + tcg_temp_free(tmp); + } + } + break; + + case 3: /*CLAMPSu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP_CLAMPS); + if (gen_window_check2(dc, RRR_R, RRR_S)) { + TCGv_i32 tmp1 = tcg_temp_new_i32(); + TCGv_i32 tmp2 = tcg_temp_new_i32(); + TCGv_i32 zero = tcg_const_i32(0); + + tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 24 - RRR_T); + tcg_gen_xor_i32(tmp2, tmp1, cpu_R[RRR_S]); + tcg_gen_andi_i32(tmp2, tmp2, 0xffffffff << (RRR_T + 7)); + + tcg_gen_sari_i32(tmp1, cpu_R[RRR_S], 31); + tcg_gen_xori_i32(tmp1, tmp1, 0xffffffff >> (25 - RRR_T)); + + tcg_gen_movcond_i32(TCG_COND_EQ, cpu_R[RRR_R], tmp2, zero, + cpu_R[RRR_S], tmp1); + tcg_temp_free(tmp1); + tcg_temp_free(tmp2); + tcg_temp_free(zero); + } + break; + + case 4: /*MINu*/ + case 5: /*MAXu*/ + case 6: /*MINUu*/ + case 7: /*MAXUu*/ + HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX); + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + static const TCGCond cond[] = { + TCG_COND_LE, + TCG_COND_GE, + TCG_COND_LEU, + TCG_COND_GEU + }; + tcg_gen_movcond_i32(cond[OP2 - 4], cpu_R[RRR_R], + cpu_R[RRR_S], cpu_R[RRR_T], + cpu_R[RRR_S], cpu_R[RRR_T]); + } + break; + + case 8: /*MOVEQZ*/ + case 9: /*MOVNEZ*/ + case 10: /*MOVLTZ*/ + case 11: /*MOVGEZ*/ + if (gen_window_check3(dc, RRR_R, RRR_S, RRR_T)) { + static const TCGCond cond[] = { + TCG_COND_EQ, + TCG_COND_NE, + TCG_COND_LT, + TCG_COND_GE, + }; + TCGv_i32 zero = tcg_const_i32(0); + + tcg_gen_movcond_i32(cond[OP2 - 8], cpu_R[RRR_R], + cpu_R[RRR_T], zero, cpu_R[RRR_S], cpu_R[RRR_R]); + tcg_temp_free(zero); + } + break; + + case 12: /*MOVFp*/ + case 13: /*MOVTp*/ + HAS_OPTION(XTENSA_OPTION_BOOLEAN); + if (gen_window_check2(dc, RRR_R, RRR_S)) { + TCGv_i32 zero = tcg_const_i32(0); + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T); + tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ, + cpu_R[RRR_R], tmp, zero, + cpu_R[RRR_S], cpu_R[RRR_R]); + + tcg_temp_free(tmp); + tcg_temp_free(zero); + } + break; + + case 14: /*RUR*/ + if (gen_window_check1(dc, RRR_R)) { + int st = (RRR_S << 4) + RRR_T; + if (uregnames[st].name) { + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_UR[st]); + } else { + qemu_log("RUR %d not implemented, ", st); + TBD(); + } + } + break; + + case 15: /*WUR*/ + if (gen_window_check1(dc, RRR_T)) { + if (uregnames[RSR_SR].name) { + gen_wur(RSR_SR, cpu_R[RRR_T]); + } else { + qemu_log("WUR %d not implemented, ", RSR_SR); + TBD(); + } + } + break; + + } + break; + + case 4: /*EXTUI*/ + case 5: + if (gen_window_check2(dc, RRR_R, RRR_T)) { + int shiftimm = RRR_S | ((OP1 & 1) << 4); + int maskimm = (1 << (OP2 + 1)) - 1; + + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_shri_i32(tmp, cpu_R[RRR_T], shiftimm); + tcg_gen_andi_i32(cpu_R[RRR_R], tmp, maskimm); + tcg_temp_free(tmp); + } + break; + + case 6: /*CUST0*/ + RESERVED(); + break; + + case 7: /*CUST1*/ + RESERVED(); + break; + + case 8: /*LSCXp*/ + switch (OP2) { + case 0: /*LSXf*/ + case 1: /*LSXUf*/ + case 4: /*SSXf*/ + case 5: /*SSXUf*/ + HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); + if (gen_window_check2(dc, RRR_S, RRR_T) && + gen_check_cpenable(dc, 0)) { + TCGv_i32 addr = tcg_temp_new_i32(); + tcg_gen_add_i32(addr, cpu_R[RRR_S], cpu_R[RRR_T]); + gen_load_store_alignment(dc, 2, addr, false); + if (OP2 & 0x4) { + tcg_gen_qemu_st32(cpu_FR[RRR_R], addr, dc->cring); + } else { + tcg_gen_qemu_ld32u(cpu_FR[RRR_R], addr, dc->cring); + } + if (OP2 & 0x1) { + tcg_gen_mov_i32(cpu_R[RRR_S], addr); + } + tcg_temp_free(addr); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 9: /*LSC4*/ + if (!gen_window_check2(dc, RRR_S, RRR_T)) { + break; + } + switch (OP2) { + case 0: /*L32E*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + if (gen_check_privilege(dc) && + gen_window_check2(dc, RRR_S, RRR_T)) { + TCGv_i32 addr = tcg_temp_new_i32(); + tcg_gen_addi_i32(addr, cpu_R[RRR_S], + (0xffffffc0 | (RRR_R << 2))); + tcg_gen_qemu_ld32u(cpu_R[RRR_T], addr, dc->ring); + tcg_temp_free(addr); + } + break; + + case 4: /*S32E*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + if (gen_check_privilege(dc) && + gen_window_check2(dc, RRR_S, RRR_T)) { + TCGv_i32 addr = tcg_temp_new_i32(); + tcg_gen_addi_i32(addr, cpu_R[RRR_S], + (0xffffffc0 | (RRR_R << 2))); + tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring); + tcg_temp_free(addr); + } + break; + + case 5: /*S32N*/ + if (gen_window_check2(dc, RRI4_S, RRI4_T)) { + TCGv_i32 addr = tcg_temp_new_i32(); + + tcg_gen_addi_i32(addr, cpu_R[RRI4_S], RRI4_IMM4 << 2); + gen_load_store_alignment(dc, 2, addr, false); + tcg_gen_qemu_st32(cpu_R[RRI4_T], addr, dc->cring); + tcg_temp_free(addr); + } + break; + + default: + RESERVED(); + break; + } + break; + + case 10: /*FP0*/ + /*DEPBITS*/ + if (option_enabled(dc, XTENSA_OPTION_DEPBITS)) { + if (!gen_window_check2(dc, RRR_S, RRR_T)) { + break; + } + tcg_gen_deposit_i32(cpu_R[RRR_T], cpu_R[RRR_T], cpu_R[RRR_S], + OP2, RRR_R + 1); + break; + } + + HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); + switch (OP2) { + case 0: /*ADD.Sf*/ + if (gen_check_cpenable(dc, 0)) { + gen_helper_add_s(cpu_FR[RRR_R], cpu_env, + cpu_FR[RRR_S], cpu_FR[RRR_T]); + } + break; + + case 1: /*SUB.Sf*/ + if (gen_check_cpenable(dc, 0)) { + gen_helper_sub_s(cpu_FR[RRR_R], cpu_env, + cpu_FR[RRR_S], cpu_FR[RRR_T]); + } + break; + + case 2: /*MUL.Sf*/ + if (gen_check_cpenable(dc, 0)) { + gen_helper_mul_s(cpu_FR[RRR_R], cpu_env, + cpu_FR[RRR_S], cpu_FR[RRR_T]); + } + break; + + case 4: /*MADD.Sf*/ + if (gen_check_cpenable(dc, 0)) { + gen_helper_madd_s(cpu_FR[RRR_R], cpu_env, + cpu_FR[RRR_R], cpu_FR[RRR_S], + cpu_FR[RRR_T]); + } + break; + + case 5: /*MSUB.Sf*/ + if (gen_check_cpenable(dc, 0)) { + gen_helper_msub_s(cpu_FR[RRR_R], cpu_env, + cpu_FR[RRR_R], cpu_FR[RRR_S], + cpu_FR[RRR_T]); + } + break; + + case 8: /*ROUND.Sf*/ + case 9: /*TRUNC.Sf*/ + case 10: /*FLOOR.Sf*/ + case 11: /*CEIL.Sf*/ + case 14: /*UTRUNC.Sf*/ + if (gen_window_check1(dc, RRR_R) && + gen_check_cpenable(dc, 0)) { + static const unsigned rounding_mode_const[] = { + float_round_nearest_even, + float_round_to_zero, + float_round_down, + float_round_up, + [6] = float_round_to_zero, + }; + TCGv_i32 rounding_mode = tcg_const_i32( + rounding_mode_const[OP2 & 7]); + TCGv_i32 scale = tcg_const_i32(RRR_T); + + if (OP2 == 14) { + gen_helper_ftoui(cpu_R[RRR_R], cpu_FR[RRR_S], + rounding_mode, scale); + } else { + gen_helper_ftoi(cpu_R[RRR_R], cpu_FR[RRR_S], + rounding_mode, scale); + } + + tcg_temp_free(rounding_mode); + tcg_temp_free(scale); + } + break; + + case 12: /*FLOAT.Sf*/ + case 13: /*UFLOAT.Sf*/ + if (gen_window_check1(dc, RRR_S) && + gen_check_cpenable(dc, 0)) { + TCGv_i32 scale = tcg_const_i32(-RRR_T); + + if (OP2 == 13) { + gen_helper_uitof(cpu_FR[RRR_R], cpu_env, + cpu_R[RRR_S], scale); + } else { + gen_helper_itof(cpu_FR[RRR_R], cpu_env, + cpu_R[RRR_S], scale); + } + tcg_temp_free(scale); + } + break; + + case 15: /*FP1OP*/ + switch (RRR_T) { + case 0: /*MOV.Sf*/ + if (gen_check_cpenable(dc, 0)) { + tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_FR[RRR_S]); + } + break; + + case 1: /*ABS.Sf*/ + if (gen_check_cpenable(dc, 0)) { + gen_helper_abs_s(cpu_FR[RRR_R], cpu_FR[RRR_S]); + } + break; + + case 4: /*RFRf*/ + if (gen_window_check1(dc, RRR_R) && + gen_check_cpenable(dc, 0)) { + tcg_gen_mov_i32(cpu_R[RRR_R], cpu_FR[RRR_S]); + } + break; + + case 5: /*WFRf*/ + if (gen_window_check1(dc, RRR_S) && + gen_check_cpenable(dc, 0)) { + tcg_gen_mov_i32(cpu_FR[RRR_R], cpu_R[RRR_S]); + } + break; + + case 6: /*NEG.Sf*/ + if (gen_check_cpenable(dc, 0)) { + gen_helper_neg_s(cpu_FR[RRR_R], cpu_FR[RRR_S]); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 11: /*FP1*/ + /*DEPBITS*/ + if (option_enabled(dc, XTENSA_OPTION_DEPBITS)) { + if (!gen_window_check2(dc, RRR_S, RRR_T)) { + break; + } + tcg_gen_deposit_i32(cpu_R[RRR_T], cpu_R[RRR_T], cpu_R[RRR_S], + OP2 + 16, RRR_R + 1); + break; + } + + HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); + +#define gen_compare(rel, br, a, b) \ + do { \ + if (gen_check_cpenable(dc, 0)) { \ + TCGv_i32 bit = tcg_const_i32(1 << br); \ + \ + gen_helper_##rel(cpu_env, bit, cpu_FR[a], cpu_FR[b]); \ + tcg_temp_free(bit); \ + } \ + } while (0) + + switch (OP2) { + case 1: /*UN.Sf*/ + gen_compare(un_s, RRR_R, RRR_S, RRR_T); + break; + + case 2: /*OEQ.Sf*/ + gen_compare(oeq_s, RRR_R, RRR_S, RRR_T); + break; + + case 3: /*UEQ.Sf*/ + gen_compare(ueq_s, RRR_R, RRR_S, RRR_T); + break; + + case 4: /*OLT.Sf*/ + gen_compare(olt_s, RRR_R, RRR_S, RRR_T); + break; + + case 5: /*ULT.Sf*/ + gen_compare(ult_s, RRR_R, RRR_S, RRR_T); + break; + + case 6: /*OLE.Sf*/ + gen_compare(ole_s, RRR_R, RRR_S, RRR_T); + break; + + case 7: /*ULE.Sf*/ + gen_compare(ule_s, RRR_R, RRR_S, RRR_T); + break; + +#undef gen_compare + + case 8: /*MOVEQZ.Sf*/ + case 9: /*MOVNEZ.Sf*/ + case 10: /*MOVLTZ.Sf*/ + case 11: /*MOVGEZ.Sf*/ + if (gen_window_check1(dc, RRR_T) && + gen_check_cpenable(dc, 0)) { + static const TCGCond cond[] = { + TCG_COND_EQ, + TCG_COND_NE, + TCG_COND_LT, + TCG_COND_GE, + }; + TCGv_i32 zero = tcg_const_i32(0); + + tcg_gen_movcond_i32(cond[OP2 - 8], cpu_FR[RRR_R], + cpu_R[RRR_T], zero, cpu_FR[RRR_S], cpu_FR[RRR_R]); + tcg_temp_free(zero); + } + break; + + case 12: /*MOVF.Sf*/ + case 13: /*MOVT.Sf*/ + HAS_OPTION(XTENSA_OPTION_BOOLEAN); + if (gen_check_cpenable(dc, 0)) { + TCGv_i32 zero = tcg_const_i32(0); + TCGv_i32 tmp = tcg_temp_new_i32(); + + tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T); + tcg_gen_movcond_i32(OP2 & 1 ? TCG_COND_NE : TCG_COND_EQ, + cpu_FR[RRR_R], tmp, zero, + cpu_FR[RRR_S], cpu_FR[RRR_R]); + + tcg_temp_free(tmp); + tcg_temp_free(zero); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 1: /*L32R*/ + if (gen_window_check1(dc, RRR_T)) { + TCGv_i32 tmp = tcg_const_i32( + ((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ? + 0 : ((dc->pc + 3) & ~3)) + + (0xfffc0000 | (RI16_IMM16 << 2))); + + if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) { + tcg_gen_add_i32(tmp, tmp, dc->litbase); + } + tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring); + tcg_temp_free(tmp); + } + break; + + case 2: /*LSAI*/ +#define gen_load_store(type, shift) do { \ + if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \ + TCGv_i32 addr = tcg_temp_new_i32(); \ + \ + tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \ + if (shift) { \ + gen_load_store_alignment(dc, shift, addr, false); \ + } \ + tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ + tcg_temp_free(addr); \ + } \ + } while (0) + + switch (RRI8_R) { + case 0: /*L8UI*/ + gen_load_store(ld8u, 0); + break; + + case 1: /*L16UI*/ + gen_load_store(ld16u, 1); + break; + + case 2: /*L32I*/ + gen_load_store(ld32u, 2); + break; + + case 4: /*S8I*/ + gen_load_store(st8, 0); + break; + + case 5: /*S16I*/ + gen_load_store(st16, 1); + break; + + case 6: /*S32I*/ + gen_load_store(st32, 2); + break; + +#define gen_dcache_hit_test(w, shift) do { \ + if (gen_window_check1(dc, RRI##w##_S)) { \ + TCGv_i32 addr = tcg_temp_new_i32(); \ + TCGv_i32 res = tcg_temp_new_i32(); \ + tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \ + RRI##w##_IMM##w << shift); \ + tcg_gen_qemu_ld8u(res, addr, dc->cring); \ + tcg_temp_free(addr); \ + tcg_temp_free(res); \ + } \ + } while (0) + +#define gen_dcache_hit_test4() gen_dcache_hit_test(4, 4) +#define gen_dcache_hit_test8() gen_dcache_hit_test(8, 2) + + case 7: /*CACHEc*/ + if (RRI8_T < 8) { + HAS_OPTION(XTENSA_OPTION_DCACHE); + } + + switch (RRI8_T) { + case 0: /*DPFRc*/ + gen_window_check1(dc, RRI8_S); + break; + + case 1: /*DPFWc*/ + gen_window_check1(dc, RRI8_S); + break; + + case 2: /*DPFROc*/ + gen_window_check1(dc, RRI8_S); + break; + + case 3: /*DPFWOc*/ + gen_window_check1(dc, RRI8_S); + break; + + case 4: /*DHWBc*/ + gen_dcache_hit_test8(); + break; + + case 5: /*DHWBIc*/ + gen_dcache_hit_test8(); + break; + + case 6: /*DHIc*/ + if (gen_check_privilege(dc)) { + gen_dcache_hit_test8(); + } + break; + + case 7: /*DIIc*/ + if (gen_check_privilege(dc)) { + gen_window_check1(dc, RRI8_S); + } + break; + + case 8: /*DCEc*/ + switch (OP1) { + case 0: /*DPFLl*/ + HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); + if (gen_check_privilege(dc)) { + gen_dcache_hit_test4(); + } + break; + + case 2: /*DHUl*/ + HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); + if (gen_check_privilege(dc)) { + gen_dcache_hit_test4(); + } + break; + + case 3: /*DIUl*/ + HAS_OPTION(XTENSA_OPTION_DCACHE_INDEX_LOCK); + if (gen_check_privilege(dc)) { + gen_window_check1(dc, RRI4_S); + } + break; + + case 4: /*DIWBc*/ + HAS_OPTION(XTENSA_OPTION_DCACHE); + if (gen_check_privilege(dc)) { + gen_window_check1(dc, RRI4_S); + } + break; + + case 5: /*DIWBIc*/ + HAS_OPTION(XTENSA_OPTION_DCACHE); + if (gen_check_privilege(dc)) { + gen_window_check1(dc, RRI4_S); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + + } + break; + +#undef gen_dcache_hit_test +#undef gen_dcache_hit_test4 +#undef gen_dcache_hit_test8 + +#define gen_icache_hit_test(w, shift) do { \ + if (gen_window_check1(dc, RRI##w##_S)) { \ + TCGv_i32 addr = tcg_temp_new_i32(); \ + tcg_gen_movi_i32(cpu_pc, dc->pc); \ + tcg_gen_addi_i32(addr, cpu_R[RRI##w##_S], \ + RRI##w##_IMM##w << shift); \ + gen_helper_itlb_hit_test(cpu_env, addr); \ + tcg_temp_free(addr); \ + }\ + } while (0) + +#define gen_icache_hit_test4() gen_icache_hit_test(4, 4) +#define gen_icache_hit_test8() gen_icache_hit_test(8, 2) + + case 12: /*IPFc*/ + HAS_OPTION(XTENSA_OPTION_ICACHE); + gen_window_check1(dc, RRI8_S); + break; + + case 13: /*ICEc*/ + switch (OP1) { + case 0: /*IPFLl*/ + HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); + if (gen_check_privilege(dc)) { + gen_icache_hit_test4(); + } + break; + + case 2: /*IHUl*/ + HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); + if (gen_check_privilege(dc)) { + gen_icache_hit_test4(); + } + break; + + case 3: /*IIUl*/ + HAS_OPTION(XTENSA_OPTION_ICACHE_INDEX_LOCK); + if (gen_check_privilege(dc)) { + gen_window_check1(dc, RRI4_S); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 14: /*IHIc*/ + HAS_OPTION(XTENSA_OPTION_ICACHE); + gen_icache_hit_test8(); + break; + + case 15: /*IIIc*/ + HAS_OPTION(XTENSA_OPTION_ICACHE); + if (gen_check_privilege(dc)) { + gen_window_check1(dc, RRI8_S); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + +#undef gen_icache_hit_test +#undef gen_icache_hit_test4 +#undef gen_icache_hit_test8 + + case 9: /*L16SI*/ + gen_load_store(ld16s, 1); + break; +#undef gen_load_store + + case 10: /*MOVI*/ + if (gen_window_check1(dc, RRI8_T)) { + tcg_gen_movi_i32(cpu_R[RRI8_T], + RRI8_IMM8 | (RRI8_S << 8) | + ((RRI8_S & 0x8) ? 0xfffff000 : 0)); + } + break; + +#define gen_load_store_no_hw_align(type) do { \ + if (gen_window_check2(dc, RRI8_S, RRI8_T)) { \ + TCGv_i32 addr = tcg_temp_local_new_i32(); \ + tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); \ + gen_load_store_alignment(dc, 2, addr, true); \ + tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \ + tcg_temp_free(addr); \ + } \ + } while (0) + + case 11: /*L32AIy*/ + HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); + gen_load_store_no_hw_align(ld32u); /*TODO acquire?*/ + break; + + case 12: /*ADDI*/ + if (gen_window_check2(dc, RRI8_S, RRI8_T)) { + tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE); + } + break; + + case 13: /*ADDMI*/ + if (gen_window_check2(dc, RRI8_S, RRI8_T)) { + tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], + RRI8_IMM8_SE << 8); + } + break; + + case 14: /*S32C1Iy*/ + HAS_OPTION(XTENSA_OPTION_CONDITIONAL_STORE); + if (gen_window_check2(dc, RRI8_S, RRI8_T)) { + TCGLabel *label = gen_new_label(); + TCGv_i32 tmp = tcg_temp_local_new_i32(); + TCGv_i32 addr = tcg_temp_local_new_i32(); + TCGv_i32 tpc; + + tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]); + tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); + gen_load_store_alignment(dc, 2, addr, true); + + gen_advance_ccount(dc); + tpc = tcg_const_i32(dc->pc); + gen_helper_check_atomctl(cpu_env, tpc, addr); + tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring); + tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T], + cpu_SR[SCOMPARE1], label); + + tcg_gen_qemu_st32(tmp, addr, dc->cring); + + gen_set_label(label); + tcg_temp_free(tpc); + tcg_temp_free(addr); + tcg_temp_free(tmp); + } + break; + + case 15: /*S32RIy*/ + HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO); + gen_load_store_no_hw_align(st32); /*TODO release?*/ + break; +#undef gen_load_store_no_hw_align + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 3: /*LSCIp*/ + switch (RRI8_R) { + case 0: /*LSIf*/ + case 4: /*SSIf*/ + case 8: /*LSIUf*/ + case 12: /*SSIUf*/ + HAS_OPTION(XTENSA_OPTION_FP_COPROCESSOR); + if (gen_window_check1(dc, RRI8_S) && + gen_check_cpenable(dc, 0)) { + TCGv_i32 addr = tcg_temp_new_i32(); + tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); + gen_load_store_alignment(dc, 2, addr, false); + if (RRI8_R & 0x4) { + tcg_gen_qemu_st32(cpu_FR[RRI8_T], addr, dc->cring); + } else { + tcg_gen_qemu_ld32u(cpu_FR[RRI8_T], addr, dc->cring); + } + if (RRI8_R & 0x8) { + tcg_gen_mov_i32(cpu_R[RRI8_S], addr); + } + tcg_temp_free(addr); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + case 4: /*MAC16d*/ + HAS_OPTION(XTENSA_OPTION_MAC16); + { + enum { + MAC16_UMUL = 0x0, + MAC16_MUL = 0x4, + MAC16_MULA = 0x8, + MAC16_MULS = 0xc, + MAC16_NONE = 0xf, + } op = OP1 & 0xc; + bool is_m1_sr = (OP2 & 0x3) == 2; + bool is_m2_sr = (OP2 & 0xc) == 0; + uint32_t ld_offset = 0; + + if (OP2 > 9) { + RESERVED(); + } + + switch (OP2 & 2) { + case 0: /*MACI?/MACC?*/ + is_m1_sr = true; + ld_offset = (OP2 & 1) ? -4 : 4; + + if (OP2 >= 8) { /*MACI/MACC*/ + if (OP1 == 0) { /*LDINC/LDDEC*/ + op = MAC16_NONE; + } else { + RESERVED(); + } + } else if (op != MAC16_MULA) { /*MULA.*.*.LDINC/LDDEC*/ + RESERVED(); + } + break; + + case 2: /*MACD?/MACA?*/ + if (op == MAC16_UMUL && OP2 != 7) { /*UMUL only in MACAA*/ + RESERVED(); + } + break; + } + + if (op != MAC16_NONE) { + if (!is_m1_sr && !gen_window_check1(dc, RRR_S)) { + break; + } + if (!is_m2_sr && !gen_window_check1(dc, RRR_T)) { + break; + } + } + + if (ld_offset && !gen_window_check1(dc, RRR_S)) { + break; + } + + { + TCGv_i32 vaddr = tcg_temp_new_i32(); + TCGv_i32 mem32 = tcg_temp_new_i32(); + + if (ld_offset) { + tcg_gen_addi_i32(vaddr, cpu_R[RRR_S], ld_offset); + gen_load_store_alignment(dc, 2, vaddr, false); + tcg_gen_qemu_ld32u(mem32, vaddr, dc->cring); + } + if (op != MAC16_NONE) { + TCGv_i32 m1 = gen_mac16_m( + is_m1_sr ? cpu_SR[MR + RRR_X] : cpu_R[RRR_S], + OP1 & 1, op == MAC16_UMUL); + TCGv_i32 m2 = gen_mac16_m( + is_m2_sr ? cpu_SR[MR + 2 + RRR_Y] : cpu_R[RRR_T], + OP1 & 2, op == MAC16_UMUL); + + if (op == MAC16_MUL || op == MAC16_UMUL) { + tcg_gen_mul_i32(cpu_SR[ACCLO], m1, m2); + if (op == MAC16_UMUL) { + tcg_gen_movi_i32(cpu_SR[ACCHI], 0); + } else { + tcg_gen_sari_i32(cpu_SR[ACCHI], cpu_SR[ACCLO], 31); + } + } else { + TCGv_i32 lo = tcg_temp_new_i32(); + TCGv_i32 hi = tcg_temp_new_i32(); + + tcg_gen_mul_i32(lo, m1, m2); + tcg_gen_sari_i32(hi, lo, 31); + if (op == MAC16_MULA) { + tcg_gen_add2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI], + cpu_SR[ACCLO], cpu_SR[ACCHI], + lo, hi); + } else { + tcg_gen_sub2_i32(cpu_SR[ACCLO], cpu_SR[ACCHI], + cpu_SR[ACCLO], cpu_SR[ACCHI], + lo, hi); + } + tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]); + + tcg_temp_free_i32(lo); + tcg_temp_free_i32(hi); + } + tcg_temp_free(m1); + tcg_temp_free(m2); + } + if (ld_offset) { + tcg_gen_mov_i32(cpu_R[RRR_S], vaddr); + tcg_gen_mov_i32(cpu_SR[MR + RRR_W], mem32); + } + tcg_temp_free(vaddr); + tcg_temp_free(mem32); + } + } + break; + + case 5: /*CALLN*/ + switch (CALL_N) { + case 0: /*CALL0*/ + tcg_gen_movi_i32(cpu_R[0], dc->next_pc); + gen_jumpi(dc, (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); + break; + + case 1: /*CALL4w*/ + case 2: /*CALL8w*/ + case 3: /*CALL12w*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + if (gen_window_check1(dc, CALL_N << 2)) { + gen_callwi(dc, CALL_N, + (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); + } + break; + } + break; + + case 6: /*SI*/ + switch (CALL_N) { + case 0: /*J*/ + gen_jumpi(dc, dc->pc + 4 + CALL_OFFSET_SE, 0); + break; + + case 1: /*BZ*/ + if (gen_window_check1(dc, BRI12_S)) { + static const TCGCond cond[] = { + TCG_COND_EQ, /*BEQZ*/ + TCG_COND_NE, /*BNEZ*/ + TCG_COND_LT, /*BLTZ*/ + TCG_COND_GE, /*BGEZ*/ + }; + + gen_brcondi(dc, cond[BRI12_M & 3], cpu_R[BRI12_S], 0, + 4 + BRI12_IMM12_SE); + } + break; + + case 2: /*BI0*/ + if (gen_window_check1(dc, BRI8_S)) { + static const TCGCond cond[] = { + TCG_COND_EQ, /*BEQI*/ + TCG_COND_NE, /*BNEI*/ + TCG_COND_LT, /*BLTI*/ + TCG_COND_GE, /*BGEI*/ + }; + + gen_brcondi(dc, cond[BRI8_M & 3], + cpu_R[BRI8_S], B4CONST[BRI8_R], 4 + BRI8_IMM8_SE); + } + break; + + case 3: /*BI1*/ + switch (BRI8_M) { + case 0: /*ENTRYw*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + { + TCGv_i32 pc = tcg_const_i32(dc->pc); + TCGv_i32 s = tcg_const_i32(BRI12_S); + TCGv_i32 imm = tcg_const_i32(BRI12_IMM12); + gen_advance_ccount(dc); + gen_helper_entry(cpu_env, pc, s, imm); + tcg_temp_free(imm); + tcg_temp_free(s); + tcg_temp_free(pc); + /* This can change tb->flags, so exit tb */ + gen_jumpi_check_loop_end(dc, -1); + } + break; + + case 1: /*B1*/ + switch (BRI8_R) { + case 0: /*BFp*/ + case 1: /*BTp*/ + HAS_OPTION(XTENSA_OPTION_BOOLEAN); + { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRI8_S); + gen_brcondi(dc, + BRI8_R == 1 ? TCG_COND_NE : TCG_COND_EQ, + tmp, 0, 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + } + break; + + case 8: /*LOOP*/ + case 9: /*LOOPNEZ*/ + case 10: /*LOOPGTZ*/ + HAS_OPTION(XTENSA_OPTION_LOOP); + if (gen_window_check1(dc, RRI8_S)) { + uint32_t lend = dc->pc + RRI8_IMM8 + 4; + TCGv_i32 tmp = tcg_const_i32(lend); + + tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1); + tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc); + gen_helper_wsr_lend(cpu_env, tmp); + tcg_temp_free(tmp); + + if (BRI8_R > 8) { + TCGLabel *label = gen_new_label(); + tcg_gen_brcondi_i32( + BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT, + cpu_R[RRI8_S], 0, label); + gen_jumpi(dc, lend, 1); + gen_set_label(label); + } + + gen_jumpi(dc, dc->next_pc, 0); + } + break; + + default: /*reserved*/ + RESERVED(); + break; + + } + break; + + case 2: /*BLTUI*/ + case 3: /*BGEUI*/ + if (gen_window_check1(dc, BRI8_S)) { + gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU, + cpu_R[BRI8_S], B4CONSTU[BRI8_R], + 4 + BRI8_IMM8_SE); + } + break; + } + break; + + } + break; + + case 7: /*B*/ + { + TCGCond eq_ne = (RRI8_R & 8) ? TCG_COND_NE : TCG_COND_EQ; + + switch (RRI8_R & 7) { + case 0: /*BNONE*/ /*BANY*/ + if (gen_window_check2(dc, RRI8_S, RRI8_T)) { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); + gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + } + break; + + case 1: /*BEQ*/ /*BNE*/ + case 2: /*BLT*/ /*BGE*/ + case 3: /*BLTU*/ /*BGEU*/ + if (gen_window_check2(dc, RRI8_S, RRI8_T)) { + static const TCGCond cond[] = { + [1] = TCG_COND_EQ, + [2] = TCG_COND_LT, + [3] = TCG_COND_LTU, + [9] = TCG_COND_NE, + [10] = TCG_COND_GE, + [11] = TCG_COND_GEU, + }; + gen_brcond(dc, cond[RRI8_R], cpu_R[RRI8_S], cpu_R[RRI8_T], + 4 + RRI8_IMM8_SE); + } + break; + + case 4: /*BALL*/ /*BNALL*/ + if (gen_window_check2(dc, RRI8_S, RRI8_T)) { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]); + gen_brcond(dc, eq_ne, tmp, cpu_R[RRI8_T], + 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + } + break; + + case 5: /*BBC*/ /*BBS*/ + if (gen_window_check2(dc, RRI8_S, RRI8_T)) { +#ifdef TARGET_WORDS_BIGENDIAN + TCGv_i32 bit = tcg_const_i32(0x80000000); +#else + TCGv_i32 bit = tcg_const_i32(0x00000001); +#endif + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_andi_i32(tmp, cpu_R[RRI8_T], 0x1f); +#ifdef TARGET_WORDS_BIGENDIAN + tcg_gen_shr_i32(bit, bit, tmp); +#else + tcg_gen_shl_i32(bit, bit, tmp); +#endif + tcg_gen_and_i32(tmp, cpu_R[RRI8_S], bit); + gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + tcg_temp_free(bit); + } + break; + + case 6: /*BBCI*/ /*BBSI*/ + case 7: + if (gen_window_check1(dc, RRI8_S)) { + TCGv_i32 tmp = tcg_temp_new_i32(); + tcg_gen_andi_i32(tmp, cpu_R[RRI8_S], +#ifdef TARGET_WORDS_BIGENDIAN + 0x80000000 >> (((RRI8_R & 1) << 4) | RRI8_T)); +#else + 0x00000001 << (((RRI8_R & 1) << 4) | RRI8_T)); +#endif + gen_brcondi(dc, eq_ne, tmp, 0, 4 + RRI8_IMM8_SE); + tcg_temp_free(tmp); + } + break; + + } + } + break; + +#define gen_narrow_load_store(type) do { \ + if (gen_window_check2(dc, RRRN_S, RRRN_T)) { \ + TCGv_i32 addr = tcg_temp_new_i32(); \ + tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \ + gen_load_store_alignment(dc, 2, addr, false); \ + tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \ + tcg_temp_free(addr); \ + } \ + } while (0) + + case 8: /*L32I.Nn*/ + gen_narrow_load_store(ld32u); + break; + + case 9: /*S32I.Nn*/ + gen_narrow_load_store(st32); + break; +#undef gen_narrow_load_store + + case 10: /*ADD.Nn*/ + if (gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T)) { + tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]); + } + break; + + case 11: /*ADDI.Nn*/ + if (gen_window_check2(dc, RRRN_R, RRRN_S)) { + tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], + RRRN_T ? RRRN_T : -1); + } + break; + + case 12: /*ST2n*/ + if (!gen_window_check1(dc, RRRN_S)) { + break; + } + if (RRRN_T < 8) { /*MOVI.Nn*/ + tcg_gen_movi_i32(cpu_R[RRRN_S], + RRRN_R | (RRRN_T << 4) | + ((RRRN_T & 6) == 6 ? 0xffffff80 : 0)); + } else { /*BEQZ.Nn*/ /*BNEZ.Nn*/ + TCGCond eq_ne = (RRRN_T & 4) ? TCG_COND_NE : TCG_COND_EQ; + + gen_brcondi(dc, eq_ne, cpu_R[RRRN_S], 0, + 4 + (RRRN_R | ((RRRN_T & 3) << 4))); + } + break; + + case 13: /*ST3n*/ + switch (RRRN_R) { + case 0: /*MOV.Nn*/ + if (gen_window_check2(dc, RRRN_S, RRRN_T)) { + tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]); + } + break; + + case 15: /*S3*/ + switch (RRRN_T) { + case 0: /*RET.Nn*/ + gen_jump(dc, cpu_R[0]); + break; + + case 1: /*RETW.Nn*/ + HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); + { + TCGv_i32 tmp = tcg_const_i32(dc->pc); + gen_advance_ccount(dc); + gen_helper_retw(tmp, cpu_env, tmp); + gen_jump(dc, tmp); + tcg_temp_free(tmp); + } + break; + + case 2: /*BREAK.Nn*/ + HAS_OPTION(XTENSA_OPTION_DEBUG); + if (dc->debug) { + gen_debug_exception(dc, DEBUGCAUSE_BN); + } + break; + + case 3: /*NOP.Nn*/ + break; + + case 6: /*ILL.Nn*/ + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + break; + + default: /*reserved*/ + RESERVED(); + break; + } + + if (dc->is_jmp == DISAS_NEXT) { + gen_check_loop_end(dc, 0); + } + dc->pc = dc->next_pc; + + return; + +invalid_opcode: + qemu_log("INVALID(pc = %08x)\n", dc->pc); + gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE); +#undef HAS_OPTION +} + +static inline unsigned xtensa_insn_len(CPUXtensaState *env, DisasContext *dc) +{ + uint8_t b0 = cpu_ldub_code(env, dc->pc); + return xtensa_op0_insn_len(OP0); +} + +static void gen_ibreak_check(CPUXtensaState *env, DisasContext *dc) +{ + unsigned i; + + for (i = 0; i < dc->config->nibreak; ++i) { + if ((env->sregs[IBREAKENABLE] & (1 << i)) && + env->sregs[IBREAKA + i] == dc->pc) { + gen_debug_exception(dc, DEBUGCAUSE_IB); + break; + } + } +} + +void gen_intermediate_code(CPUXtensaState *env, TranslationBlock *tb) +{ + XtensaCPU *cpu = xtensa_env_get_cpu(env); + CPUState *cs = CPU(cpu); + DisasContext dc; + int insn_count = 0; + int max_insns = tb->cflags & CF_COUNT_MASK; + uint32_t pc_start = tb->pc; + uint32_t next_page_start = + (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; + + if (max_insns == 0) { + max_insns = CF_COUNT_MASK; + } + if (max_insns > TCG_MAX_INSNS) { + max_insns = TCG_MAX_INSNS; + } + + dc.config = env->config; + dc.singlestep_enabled = cs->singlestep_enabled; + dc.tb = tb; + dc.pc = pc_start; + dc.ring = tb->flags & XTENSA_TBFLAG_RING_MASK; + dc.cring = (tb->flags & XTENSA_TBFLAG_EXCM) ? 0 : dc.ring; + dc.lbeg = env->sregs[LBEG]; + dc.lend = env->sregs[LEND]; + dc.is_jmp = DISAS_NEXT; + dc.ccount_delta = 0; + dc.debug = tb->flags & XTENSA_TBFLAG_DEBUG; + dc.icount = tb->flags & XTENSA_TBFLAG_ICOUNT; + dc.cpenable = (tb->flags & XTENSA_TBFLAG_CPENABLE_MASK) >> + XTENSA_TBFLAG_CPENABLE_SHIFT; + dc.window = ((tb->flags & XTENSA_TBFLAG_WINDOW_MASK) >> + XTENSA_TBFLAG_WINDOW_SHIFT); + + init_litbase(&dc); + init_sar_tracker(&dc); + if (dc.icount) { + dc.next_icount = tcg_temp_local_new_i32(); + } + + gen_tb_start(tb); + + if (tb->flags & XTENSA_TBFLAG_EXCEPTION) { + tcg_gen_movi_i32(cpu_pc, dc.pc); + gen_exception(&dc, EXCP_DEBUG); + } + + do { + tcg_gen_insn_start(dc.pc); + ++insn_count; + + ++dc.ccount_delta; + + if (unlikely(cpu_breakpoint_test(cs, dc.pc, BP_ANY))) { + tcg_gen_movi_i32(cpu_pc, dc.pc); + gen_exception(&dc, EXCP_DEBUG); + dc.is_jmp = DISAS_UPDATE; + /* The address covered by the breakpoint must be included in + [tb->pc, tb->pc + tb->size) in order to for it to be + properly cleared -- thus we increment the PC here so that + the logic setting tb->size below does the right thing. */ + dc.pc += 2; + break; + } + + if (insn_count == max_insns && (tb->cflags & CF_LAST_IO)) { + gen_io_start(); + } + + if (dc.icount) { + TCGLabel *label = gen_new_label(); + + tcg_gen_addi_i32(dc.next_icount, cpu_SR[ICOUNT], 1); + tcg_gen_brcondi_i32(TCG_COND_NE, dc.next_icount, 0, label); + tcg_gen_mov_i32(dc.next_icount, cpu_SR[ICOUNT]); + if (dc.debug) { + gen_debug_exception(&dc, DEBUGCAUSE_IC); + } + gen_set_label(label); + } + + if (dc.debug) { + gen_ibreak_check(env, &dc); + } + + disas_xtensa_insn(env, &dc); + if (dc.icount) { + tcg_gen_mov_i32(cpu_SR[ICOUNT], dc.next_icount); + } + if (cs->singlestep_enabled) { + tcg_gen_movi_i32(cpu_pc, dc.pc); + gen_exception(&dc, EXCP_DEBUG); + break; + } + } while (dc.is_jmp == DISAS_NEXT && + insn_count < max_insns && + dc.pc < next_page_start && + dc.pc + xtensa_insn_len(env, &dc) <= next_page_start && + !tcg_op_buf_full()); + + reset_litbase(&dc); + reset_sar_tracker(&dc); + if (dc.icount) { + tcg_temp_free(dc.next_icount); + } + + if (tb->cflags & CF_LAST_IO) { + gen_io_end(); + } + + if (dc.is_jmp == DISAS_NEXT) { + gen_jumpi(&dc, dc.pc, 0); + } + gen_tb_end(tb, insn_count); + +#ifdef DEBUG_DISAS + if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) { + qemu_log("----------------\n"); + qemu_log("IN: %s\n", lookup_symbol(pc_start)); + log_target_disas(cs, pc_start, dc.pc - pc_start, 0); + qemu_log("\n"); + } +#endif + tb->size = dc.pc - pc_start; + tb->icount = insn_count; +} + +void xtensa_cpu_dump_state(CPUState *cs, FILE *f, + fprintf_function cpu_fprintf, int flags) +{ + XtensaCPU *cpu = XTENSA_CPU(cs); + CPUXtensaState *env = &cpu->env; + int i, j; + + cpu_fprintf(f, "PC=%08x\n\n", env->pc); + + for (i = j = 0; i < 256; ++i) { + if (xtensa_option_bits_enabled(env->config, sregnames[i].opt_bits)) { + cpu_fprintf(f, "%12s=%08x%c", sregnames[i].name, env->sregs[i], + (j++ % 4) == 3 ? '\n' : ' '); + } + } + + cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); + + for (i = j = 0; i < 256; ++i) { + if (xtensa_option_bits_enabled(env->config, uregnames[i].opt_bits)) { + cpu_fprintf(f, "%s=%08x%c", uregnames[i].name, env->uregs[i], + (j++ % 4) == 3 ? '\n' : ' '); + } + } + + cpu_fprintf(f, (j % 4) == 0 ? "\n" : "\n\n"); + + for (i = 0; i < 16; ++i) { + cpu_fprintf(f, " A%02d=%08x%c", i, env->regs[i], + (i % 4) == 3 ? '\n' : ' '); + } + + cpu_fprintf(f, "\n"); + + for (i = 0; i < env->config->nareg; ++i) { + cpu_fprintf(f, "AR%02d=%08x%c", i, env->phys_regs[i], + (i % 4) == 3 ? '\n' : ' '); + } + + if (xtensa_option_enabled(env->config, XTENSA_OPTION_FP_COPROCESSOR)) { + cpu_fprintf(f, "\n"); + + for (i = 0; i < 16; ++i) { + cpu_fprintf(f, "F%02d=%08x (%+10.8e)%c", i, + float32_val(env->fregs[i].f32[FP_F32_LOW]), + *(float *)(env->fregs[i].f32 + FP_F32_LOW), + (i % 2) == 1 ? '\n' : ' '); + } + } +} + +void restore_state_to_opc(CPUXtensaState *env, TranslationBlock *tb, + target_ulong *data) +{ + env->pc = data[0]; +} diff --git a/src/target-xtensa/xtensa-semi.c b/src/target-xtensa/xtensa-semi.c new file mode 100644 index 0000000..16e9d8c --- /dev/null +++ b/src/target-xtensa/xtensa-semi.c @@ -0,0 +1,321 @@ +/* + * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of the Open Source and Linux Lab nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <errno.h> +#include <unistd.h> +#include <string.h> +#include <stddef.h> +#include "cpu.h" +#include "exec/helper-proto.h" +#include "qemu/log.h" + +enum { + TARGET_SYS_exit = 1, + TARGET_SYS_read = 3, + TARGET_SYS_write = 4, + TARGET_SYS_open = 5, + TARGET_SYS_close = 6, + TARGET_SYS_lseek = 19, + TARGET_SYS_select_one = 29, + + TARGET_SYS_argc = 1000, + TARGET_SYS_argv_sz = 1001, + TARGET_SYS_argv = 1002, + TARGET_SYS_memset = 1004, +}; + +enum { + SELECT_ONE_READ = 1, + SELECT_ONE_WRITE = 2, + SELECT_ONE_EXCEPT = 3, +}; + +enum { + TARGET_EPERM = 1, + TARGET_ENOENT = 2, + TARGET_ESRCH = 3, + TARGET_EINTR = 4, + TARGET_EIO = 5, + TARGET_ENXIO = 6, + TARGET_E2BIG = 7, + TARGET_ENOEXEC = 8, + TARGET_EBADF = 9, + TARGET_ECHILD = 10, + TARGET_EAGAIN = 11, + TARGET_ENOMEM = 12, + TARGET_EACCES = 13, + TARGET_EFAULT = 14, + TARGET_ENOTBLK = 15, + TARGET_EBUSY = 16, + TARGET_EEXIST = 17, + TARGET_EXDEV = 18, + TARGET_ENODEV = 19, + TARGET_ENOTDIR = 20, + TARGET_EISDIR = 21, + TARGET_EINVAL = 22, + TARGET_ENFILE = 23, + TARGET_EMFILE = 24, + TARGET_ENOTTY = 25, + TARGET_ETXTBSY = 26, + TARGET_EFBIG = 27, + TARGET_ENOSPC = 28, + TARGET_ESPIPE = 29, + TARGET_EROFS = 30, + TARGET_EMLINK = 31, + TARGET_EPIPE = 32, + TARGET_EDOM = 33, + TARGET_ERANGE = 34, + TARGET_ENOSYS = 88, + TARGET_ELOOP = 92, +}; + +static uint32_t errno_h2g(int host_errno) +{ + static const uint32_t guest_errno[] = { + [EPERM] = TARGET_EPERM, + [ENOENT] = TARGET_ENOENT, + [ESRCH] = TARGET_ESRCH, + [EINTR] = TARGET_EINTR, + [EIO] = TARGET_EIO, + [ENXIO] = TARGET_ENXIO, + [E2BIG] = TARGET_E2BIG, + [ENOEXEC] = TARGET_ENOEXEC, + [EBADF] = TARGET_EBADF, + [ECHILD] = TARGET_ECHILD, + [EAGAIN] = TARGET_EAGAIN, + [ENOMEM] = TARGET_ENOMEM, + [EACCES] = TARGET_EACCES, + [EFAULT] = TARGET_EFAULT, +#ifdef ENOTBLK + [ENOTBLK] = TARGET_ENOTBLK, +#endif + [EBUSY] = TARGET_EBUSY, + [EEXIST] = TARGET_EEXIST, + [EXDEV] = TARGET_EXDEV, + [ENODEV] = TARGET_ENODEV, + [ENOTDIR] = TARGET_ENOTDIR, + [EISDIR] = TARGET_EISDIR, + [EINVAL] = TARGET_EINVAL, + [ENFILE] = TARGET_ENFILE, + [EMFILE] = TARGET_EMFILE, + [ENOTTY] = TARGET_ENOTTY, +#ifdef ETXTBSY + [ETXTBSY] = TARGET_ETXTBSY, +#endif + [EFBIG] = TARGET_EFBIG, + [ENOSPC] = TARGET_ENOSPC, + [ESPIPE] = TARGET_ESPIPE, + [EROFS] = TARGET_EROFS, + [EMLINK] = TARGET_EMLINK, + [EPIPE] = TARGET_EPIPE, + [EDOM] = TARGET_EDOM, + [ERANGE] = TARGET_ERANGE, + [ENOSYS] = TARGET_ENOSYS, +#ifdef ELOOP + [ELOOP] = TARGET_ELOOP, +#endif + }; + + if (host_errno == 0) { + return 0; + } else if (host_errno > 0 && host_errno < ARRAY_SIZE(guest_errno) && + guest_errno[host_errno]) { + return guest_errno[host_errno]; + } else { + return TARGET_EINVAL; + } +} + +void HELPER(simcall)(CPUXtensaState *env) +{ + CPUState *cs = CPU(xtensa_env_get_cpu(env)); + uint32_t *regs = env->regs; + + switch (regs[2]) { + case TARGET_SYS_exit: + qemu_log("exit(%d) simcall\n", regs[3]); + exit(regs[3]); + break; + + case TARGET_SYS_read: + case TARGET_SYS_write: + { + bool is_write = regs[2] == TARGET_SYS_write; + uint32_t fd = regs[3]; + uint32_t vaddr = regs[4]; + uint32_t len = regs[5]; + + while (len > 0) { + hwaddr paddr = cpu_get_phys_page_debug(cs, vaddr); + uint32_t page_left = + TARGET_PAGE_SIZE - (vaddr & (TARGET_PAGE_SIZE - 1)); + uint32_t io_sz = page_left < len ? page_left : len; + hwaddr sz = io_sz; + void *buf = cpu_physical_memory_map(paddr, &sz, is_write); + + if (buf) { + vaddr += io_sz; + len -= io_sz; + regs[2] = is_write ? + write(fd, buf, io_sz) : + read(fd, buf, io_sz); + regs[3] = errno_h2g(errno); + cpu_physical_memory_unmap(buf, sz, is_write, sz); + if (regs[2] == -1) { + break; + } + } else { + regs[2] = -1; + regs[3] = TARGET_EINVAL; + break; + } + } + } + break; + + case TARGET_SYS_open: + { + char name[1024]; + int rc; + int i; + + for (i = 0; i < ARRAY_SIZE(name); ++i) { + rc = cpu_memory_rw_debug(cs, regs[3] + i, + (uint8_t *)name + i, 1, 0); + if (rc != 0 || name[i] == 0) { + break; + } + } + + if (rc == 0 && i < ARRAY_SIZE(name)) { + regs[2] = open(name, regs[4], regs[5]); + regs[3] = errno_h2g(errno); + } else { + regs[2] = -1; + regs[3] = TARGET_EINVAL; + } + } + break; + + case TARGET_SYS_close: + if (regs[3] < 3) { + regs[2] = regs[3] = 0; + } else { + regs[2] = close(regs[3]); + regs[3] = errno_h2g(errno); + } + break; + + case TARGET_SYS_lseek: + regs[2] = lseek(regs[3], (off_t)(int32_t)regs[4], regs[5]); + regs[3] = errno_h2g(errno); + break; + + case TARGET_SYS_select_one: + { + uint32_t fd = regs[3]; + uint32_t rq = regs[4]; + uint32_t target_tv = regs[5]; + uint32_t target_tvv[2]; + + struct timeval tv = {0}; + fd_set fdset; + + FD_ZERO(&fdset); + FD_SET(fd, &fdset); + + if (target_tv) { + cpu_memory_rw_debug(cs, target_tv, + (uint8_t *)target_tvv, sizeof(target_tvv), 0); + tv.tv_sec = (int32_t)tswap32(target_tvv[0]); + tv.tv_usec = (int32_t)tswap32(target_tvv[1]); + } + regs[2] = select(fd + 1, + rq == SELECT_ONE_READ ? &fdset : NULL, + rq == SELECT_ONE_WRITE ? &fdset : NULL, + rq == SELECT_ONE_EXCEPT ? &fdset : NULL, + target_tv ? &tv : NULL); + regs[3] = errno_h2g(errno); + } + break; + + case TARGET_SYS_argc: + regs[2] = 1; + regs[3] = 0; + break; + + case TARGET_SYS_argv_sz: + regs[2] = 128; + regs[3] = 0; + break; + + case TARGET_SYS_argv: + { + struct Argv { + uint32_t argptr[2]; + char text[120]; + } argv = { + {0, 0}, + "test" + }; + + argv.argptr[0] = tswap32(regs[3] + offsetof(struct Argv, text)); + cpu_memory_rw_debug(cs, + regs[3], (uint8_t *)&argv, sizeof(argv), 1); + } + break; + + case TARGET_SYS_memset: + { + uint32_t base = regs[3]; + uint32_t sz = regs[5]; + + while (sz) { + hwaddr len = sz; + void *buf = cpu_physical_memory_map(base, &len, 1); + + if (buf && len) { + memset(buf, regs[4], len); + cpu_physical_memory_unmap(buf, len, 1, len); + } else { + len = 1; + } + base += len; + sz -= len; + } + regs[2] = regs[3]; + regs[3] = 0; + } + break; + + default: + qemu_log("%s(%d): not implemented\n", __func__, regs[2]); + regs[2] = -1; + regs[3] = TARGET_ENOSYS; + break; + } +} |
