diff options
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/cpu-features.h | 8 | ||||
| -rw-r--r-- | arch/mips/include/asm/cpu-info.h | 1 | ||||
| -rw-r--r-- | arch/mips/include/asm/cpu-type.h | 203 | ||||
| -rw-r--r-- | arch/mips/include/asm/cpu.h | 38 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-au1x00/au1000.h | 4 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h | 2 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h | 2 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h | 2 | ||||
| -rw-r--r-- | arch/mips/include/asm/mipsregs.h | 7 | ||||
| -rw-r--r-- | arch/mips/include/asm/pci.h | 12 | ||||
| -rw-r--r-- | arch/mips/include/asm/timex.h | 33 | ||||
| -rw-r--r-- | arch/mips/include/asm/vga.h | 3 |
12 files changed, 296 insertions, 19 deletions
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index fa44f3e..d445d06 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -13,12 +13,6 @@ #include <asm/cpu-info.h> #include <cpu-feature-overrides.h> -#ifndef current_cpu_type -#define current_cpu_type() current_cpu_data.cputype -#endif - -#define boot_cpu_type() cpu_data[0].cputype - /* * SMP assumption: Options of CPU 0 are a superset of all processors. * This is true for all known MIPS systems. @@ -193,7 +187,7 @@ /* * MIPS32, MIPS64, VR5500, IDT32332, IDT32334 and maybe a few other - * pre-MIPS32/MIPS53 processors have CLO, CLZ. The IDT RC64574 is 64-bit and + * pre-MIPS32/MIPS64 processors have CLO, CLZ. The IDT RC64574 is 64-bit and * has CLO and CLZ but not DCLO nor DCLZ. For 64-bit kernels * cpu_has_clo_clz also indicates the availability of DCLO and DCLZ. */ diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h index 41401d8..21c8e29 100644 --- a/arch/mips/include/asm/cpu-info.h +++ b/arch/mips/include/asm/cpu-info.h @@ -84,6 +84,7 @@ struct cpuinfo_mips { extern struct cpuinfo_mips cpu_data[]; #define current_cpu_data cpu_data[smp_processor_id()] #define raw_current_cpu_data cpu_data[raw_smp_processor_id()] +#define boot_cpu_data cpu_data[0] extern void cpu_probe(void); extern void cpu_report(void); diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h new file mode 100644 index 0000000..4a402cc --- /dev/null +++ b/arch/mips/include/asm/cpu-type.h @@ -0,0 +1,203 @@ +/* + * 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) 2003, 2004 Ralf Baechle + * Copyright (C) 2004 Maciej W. Rozycki + */ +#ifndef __ASM_CPU_TYPE_H +#define __ASM_CPU_TYPE_H + +#include <linux/smp.h> +#include <linux/compiler.h> + +static inline int __pure __get_cpu_type(const int cpu_type) +{ + switch (cpu_type) { +#if defined(CONFIG_SYS_HAS_CPU_LOONGSON2E) || \ + defined(CONFIG_SYS_HAS_CPU_LOONGSON2F) + case CPU_LOONGSON2: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_LOONGSON1B + case CPU_LOONGSON1: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_MIPS32_R1 + case CPU_4KC: + case CPU_ALCHEMY: + case CPU_BMIPS3300: + case CPU_BMIPS4350: + case CPU_PR4450: + case CPU_BMIPS32: + case CPU_JZRISC: +#endif + +#if defined(CONFIG_SYS_HAS_CPU_MIPS32_R1) || \ + defined(CONFIG_SYS_HAS_CPU_MIPS32_R2) + case CPU_4KEC: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_MIPS32_R2 + case CPU_4KSC: + case CPU_24K: + case CPU_34K: + case CPU_1004K: + case CPU_74K: + case CPU_M14KC: + case CPU_M14KEC: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R1 + case CPU_5KC: + case CPU_5KE: + case CPU_20KC: + case CPU_25KF: + case CPU_SB1: + case CPU_SB1A: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_MIPS64_R2 + /* + * All MIPS64 R2 processors have their own special symbols. That is, + * there currently is no pure R2 core + */ +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R3000 + case CPU_R2000: + case CPU_R3000: + case CPU_R3000A: + case CPU_R3041: + case CPU_R3051: + case CPU_R3052: + case CPU_R3081: + case CPU_R3081E: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_TX39XX + case CPU_TX3912: + case CPU_TX3922: + case CPU_TX3927: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_VR41XX + case CPU_VR41XX: + case CPU_VR4111: + case CPU_VR4121: + case CPU_VR4122: + case CPU_VR4131: + case CPU_VR4133: + case CPU_VR4181: + case CPU_VR4181A: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R4300 + case CPU_R4300: + case CPU_R4310: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R4X00 + case CPU_R4000PC: + case CPU_R4000SC: + case CPU_R4000MC: + case CPU_R4200: + case CPU_R4400PC: + case CPU_R4400SC: + case CPU_R4400MC: + case CPU_R4600: + case CPU_R4700: + case CPU_R4640: + case CPU_R4650: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_TX49XX + case CPU_TX49XX: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R5000 + case CPU_R5000: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R5432 + case CPU_R5432: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R5500 + case CPU_R5500: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R6000 + case CPU_R6000: + case CPU_R6000A: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_NEVADA + case CPU_NEVADA: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R8000 + case CPU_R8000: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_R10000 + case CPU_R10000: + case CPU_R12000: + case CPU_R14000: +#endif +#ifdef CONFIG_SYS_HAS_CPU_RM7000 + case CPU_RM7000: + case CPU_SR71000: +#endif +#ifdef CONFIG_SYS_HAS_CPU_RM9000 + case CPU_RM9000: +#endif +#ifdef CONFIG_SYS_HAS_CPU_SB1 + case CPU_SB1: + case CPU_SB1A: +#endif +#ifdef CONFIG_SYS_HAS_CPU_CAVIUM_OCTEON + case CPU_CAVIUM_OCTEON: + case CPU_CAVIUM_OCTEON_PLUS: + case CPU_CAVIUM_OCTEON2: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_BMIPS4380 + case CPU_BMIPS4380: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_BMIPS5000 + case CPU_BMIPS5000: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_XLP + case CPU_XLP: +#endif + +#ifdef CONFIG_SYS_HAS_CPU_XLR + case CPU_XLR: +#endif + break; + default: + unreachable(); + } + + return cpu_type; +} + +static inline int __pure current_cpu_type(void) +{ + const int cpu_type = current_cpu_data.cputype; + + return __get_cpu_type(cpu_type); +} + +static inline int __pure boot_cpu_type(void) +{ + const int cpu_type = cpu_data[0].cputype; + + return __get_cpu_type(cpu_type); +} + +#endif /* __ASM_CPU_TYPE_H */ diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index 71b9f19..d2035e1 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -3,15 +3,14 @@ * various MIPS cpu types. * * Copyright (C) 1996 David S. Miller (davem@davemloft.net) - * Copyright (C) 2004 Maciej W. Rozycki + * Copyright (C) 2004, 2013 Maciej W. Rozycki */ #ifndef _ASM_CPU_H #define _ASM_CPU_H -/* Assigned Company values for bits 23:16 of the PRId Register - (CP0 register 15, select 0). As of the MIPS32 and MIPS64 specs from - MTI, the PRId register is defined in this (backwards compatible) - way: +/* + As of the MIPS32 and MIPS64 specs from MTI, the PRId register (CP0 + register 15, select 0) is defined in this (backwards compatible) way: +----------------+----------------+----------------+----------------+ | Company Options| Company ID | Processor ID | Revision | @@ -23,6 +22,14 @@ spec. */ +#define PRID_OPT_MASK 0xff000000 + +/* + * Assigned Company values for bits 23:16 of the PRId register. + */ + +#define PRID_COMP_MASK 0xff0000 + #define PRID_COMP_LEGACY 0x000000 #define PRID_COMP_MIPS 0x010000 #define PRID_COMP_BROADCOM 0x020000 @@ -38,10 +45,17 @@ #define PRID_COMP_INGENIC 0xd00000 /* - * Assigned values for the product ID register. In order to detect a - * certain CPU type exactly eventually additional registers may need to - * be examined. These are valid when 23:16 == PRID_COMP_LEGACY + * Assigned Processor ID (implementation) values for bits 15:8 of the PRId + * register. In order to detect a certain CPU type exactly eventually + * additional registers may need to be examined. */ + +#define PRID_IMP_MASK 0xff00 + +/* + * These are valid when 23:16 == PRID_COMP_LEGACY + */ + #define PRID_IMP_R2000 0x0100 #define PRID_IMP_AU1_REV1 0x0100 #define PRID_IMP_AU1_REV2 0x0200 @@ -182,11 +196,15 @@ #define PRID_IMP_NETLOGIC_XLP2XX 0x1200 /* - * Definitions for 7:0 on legacy processors + * Particular Revision values for bits 7:0 of the PRId register. */ #define PRID_REV_MASK 0x00ff +/* + * Definitions for 7:0 on legacy processors + */ + #define PRID_REV_TX4927 0x0022 #define PRID_REV_TX4937 0x0030 #define PRID_REV_R4400 0x0040 @@ -227,6 +245,8 @@ * 31 16 15 8 7 0 */ +#define FPIR_IMP_MASK 0xff00 + #define FPIR_IMP_NONE 0x0000 enum cpu_type_enum { diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h index 3e11a46..54f9e84 100644 --- a/arch/mips/include/asm/mach-au1x00/au1000.h +++ b/arch/mips/include/asm/mach-au1x00/au1000.h @@ -43,6 +43,8 @@ #include <linux/io.h> #include <linux/irq.h> +#include <asm/cpu.h> + /* cpu pipeline flush */ void static inline au_sync(void) { @@ -140,7 +142,7 @@ static inline int au1xxx_cpu_needs_config_od(void) static inline int alchemy_get_cputype(void) { - switch (read_c0_prid() & 0xffff0000) { + switch (read_c0_prid() & (PRID_OPT_MASK | PRID_COMP_MASK)) { case 0x00030000: return ALCHEMY_CPU_AU1000; break; diff --git a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h index f4caacd..1bcb642 100644 --- a/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-ip22/cpu-feature-overrides.h @@ -8,6 +8,8 @@ #ifndef __ASM_MACH_IP22_CPU_FEATURE_OVERRIDES_H #define __ASM_MACH_IP22_CPU_FEATURE_OVERRIDES_H +#include <asm/cpu.h> + /* * IP22 with a variety of processors so we can't use defaults for everything. */ diff --git a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h index 1d2b6ff..d6111aa 100644 --- a/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-ip27/cpu-feature-overrides.h @@ -8,6 +8,8 @@ #ifndef __ASM_MACH_IP27_CPU_FEATURE_OVERRIDES_H #define __ASM_MACH_IP27_CPU_FEATURE_OVERRIDES_H +#include <asm/cpu.h> + /* * IP27 only comes with R10000 family processors all using the same config */ diff --git a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h index 65e9c85..4cec06d 100644 --- a/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h +++ b/arch/mips/include/asm/mach-ip28/cpu-feature-overrides.h @@ -9,6 +9,8 @@ #ifndef __ASM_MACH_IP28_CPU_FEATURE_OVERRIDES_H #define __ASM_MACH_IP28_CPU_FEATURE_OVERRIDES_H +#include <asm/cpu.h> + /* * IP28 only comes with R10000 family processors all using the same config */ diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index fed1c3e..e033141 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -603,6 +603,13 @@ #define MIPS_CONF4_MMUEXTDEF (_ULCAST_(3) << 14) #define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14) +#define MIPS_CONF5_NF (_ULCAST_(1) << 0) +#define MIPS_CONF5_UFR (_ULCAST_(1) << 2) +#define MIPS_CONF5_MSAEN (_ULCAST_(1) << 27) +#define MIPS_CONF5_EVA (_ULCAST_(1) << 28) +#define MIPS_CONF5_CV (_ULCAST_(1) << 29) +#define MIPS_CONF5_K (_ULCAST_(1) << 30) + #define MIPS_CONF6_SYND (_ULCAST_(1) << 13) #define MIPS_CONF7_WII (_ULCAST_(1) << 31) diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h index f194c08..12d6842 100644 --- a/arch/mips/include/asm/pci.h +++ b/arch/mips/include/asm/pci.h @@ -83,6 +83,18 @@ static inline void pcibios_penalize_isa_irq(int irq, int active) extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine); +#define HAVE_ARCH_PCI_RESOURCE_TO_USER + +static inline void pci_resource_to_user(const struct pci_dev *dev, int bar, + const struct resource *rsrc, resource_size_t *start, + resource_size_t *end) +{ + phys_t size = resource_size(rsrc); + + *start = fixup_bigphys_addr(rsrc->start, size); + *end = rsrc->start + size; +} + /* * Dynamic DMA mapping stuff. * MIPS has everything mapped statically. diff --git a/arch/mips/include/asm/timex.h b/arch/mips/include/asm/timex.h index 6529704..c542475 100644 --- a/arch/mips/include/asm/timex.h +++ b/arch/mips/include/asm/timex.h @@ -10,7 +10,9 @@ #ifdef __KERNEL__ +#include <asm/cpu-features.h> #include <asm/mipsregs.h> +#include <asm/cpu-type.h> /* * This is the clock rate of the i8253 PIT. A MIPS system may not have @@ -33,9 +35,38 @@ typedef unsigned int cycles_t; +/* + * On R4000/R4400 before version 5.0 an erratum exists such that if the + * cycle counter is read in the exact moment that it is matching the + * compare register, no interrupt will be generated. + * + * There is a suggested workaround and also the erratum can't strike if + * the compare interrupt isn't being used as the clock source device. + * However for now the implementaton of this function doesn't get these + * fine details right. + */ static inline cycles_t get_cycles(void) { - return 0; + switch (boot_cpu_type()) { + case CPU_R4400PC: + case CPU_R4400SC: + case CPU_R4400MC: + if ((read_c0_prid() & 0xff) >= 0x0050) + return read_c0_count(); + break; + + case CPU_R4000PC: + case CPU_R4000SC: + case CPU_R4000MC: + break; + + default: + if (cpu_has_counter) + return read_c0_count(); + break; + } + + return 0; /* no usable counter */ } #endif /* __KERNEL__ */ diff --git a/arch/mips/include/asm/vga.h b/arch/mips/include/asm/vga.h index f4cff7e..f82c837 100644 --- a/arch/mips/include/asm/vga.h +++ b/arch/mips/include/asm/vga.h @@ -6,6 +6,7 @@ #ifndef _ASM_VGA_H #define _ASM_VGA_H +#include <asm/addrspace.h> #include <asm/byteorder.h> /* @@ -13,7 +14,7 @@ * access the videoram directly without any black magic. */ -#define VGA_MAP_MEM(x, s) (0xb0000000L + (unsigned long)(x)) +#define VGA_MAP_MEM(x, s) CKSEG1ADDR(0x10000000L + (unsigned long)(x)) #define vga_readb(x) (*(x)) #define vga_writeb(x, y) (*(y) = (x)) |
