diff options
Diffstat (limited to 'arch/openrisc/include')
21 files changed, 1392 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/asm-offsets.h b/arch/openrisc/include/asm/asm-offsets.h new file mode 100644 index 0000000..d370ee3 --- /dev/null +++ b/arch/openrisc/include/asm/asm-offsets.h @@ -0,0 +1 @@ +#include <generated/asm-offsets.h> diff --git a/arch/openrisc/include/asm/bitops.h b/arch/openrisc/include/asm/bitops.h new file mode 100644 index 0000000..a9e11ef --- /dev/null +++ b/arch/openrisc/include/asm/bitops.h @@ -0,0 +1,59 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_BITOPS_H +#define __ASM_OPENRISC_BITOPS_H + +/* + * Where we haven't written assembly versions yet, we fall back to the + * generic implementations. Otherwise, we pull in our (hopefully) + * optimized versions. + */ + +#include <linux/irqflags.h> +#include <linux/compiler.h> + +/* + * clear_bit may not imply a memory barrier + */ +#ifndef smp_mb__before_clear_bit +#define smp_mb__before_clear_bit() smp_mb() +#define smp_mb__after_clear_bit() smp_mb() +#endif + +#include <asm/bitops/__ffs.h> +#include <asm-generic/bitops/ffz.h> +#include <asm/bitops/fls.h> +#include <asm/bitops/__fls.h> +#include <asm-generic/bitops/fls64.h> +#include <asm-generic/bitops/find.h> + +#ifndef _LINUX_BITOPS_H +#error only <linux/bitops.h> can be included directly +#endif + +#include <asm-generic/bitops/sched.h> +#include <asm/bitops/ffs.h> +#include <asm-generic/bitops/hweight.h> +#include <asm-generic/bitops/lock.h> + +#include <asm-generic/bitops/atomic.h> +#include <asm-generic/bitops/non-atomic.h> +#include <asm-generic/bitops/ext2-atomic.h> + +#endif /* __ASM_GENERIC_BITOPS_H */ diff --git a/arch/openrisc/include/asm/bitops/__ffs.h b/arch/openrisc/include/asm/bitops/__ffs.h new file mode 100644 index 0000000..6c8368a --- /dev/null +++ b/arch/openrisc/include/asm/bitops/__ffs.h @@ -0,0 +1,33 @@ +/* + * OpenRISC Linux + * + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * + * 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. + */ + +#ifndef __ASM_OPENRISC___FFS_H +#define __ASM_OPENRISC___FFS_H + + +#ifdef CONFIG_OPENRISC_HAVE_INST_FF1 + +static inline unsigned long __ffs(unsigned long x) +{ + int ret; + + __asm__ ("l.ff1 %0,%1" + : "=r" (ret) + : "r" (x)); + + return ret-1; +} + +#else +#include <asm-generic/bitops/__ffs.h> +#endif + +#endif /* __ASM_OPENRISC___FFS_H */ diff --git a/arch/openrisc/include/asm/bitops/__fls.h b/arch/openrisc/include/asm/bitops/__fls.h new file mode 100644 index 0000000..c4ecdb4 --- /dev/null +++ b/arch/openrisc/include/asm/bitops/__fls.h @@ -0,0 +1,33 @@ +/* + * OpenRISC Linux + * + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * + * 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. + */ + +#ifndef __ASM_OPENRISC___FLS_H +#define __ASM_OPENRISC___FLS_H + + +#ifdef CONFIG_OPENRISC_HAVE_INST_FL1 + +static inline unsigned long __fls(unsigned long x) +{ + int ret; + + __asm__ ("l.fl1 %0,%1" + : "=r" (ret) + : "r" (x)); + + return ret-1; +} + +#else +#include <asm-generic/bitops/__fls.h> +#endif + +#endif /* __ASM_OPENRISC___FLS_H */ diff --git a/arch/openrisc/include/asm/bitops/ffs.h b/arch/openrisc/include/asm/bitops/ffs.h new file mode 100644 index 0000000..9de4624 --- /dev/null +++ b/arch/openrisc/include/asm/bitops/ffs.h @@ -0,0 +1,32 @@ +/* + * OpenRISC Linux + * + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * + * 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. + */ + +#ifndef __ASM_OPENRISC_FFS_H +#define __ASM_OPENRISC_FFS_H + +#ifdef CONFIG_OPENRISC_HAVE_INST_FF1 + +static inline int ffs(int x) +{ + int ret; + + __asm__ ("l.ff1 %0,%1" + : "=r" (ret) + : "r" (x)); + + return ret; +} + +#else +#include <asm-generic/bitops/ffs.h> +#endif + +#endif /* __ASM_OPENRISC_FFS_H */ diff --git a/arch/openrisc/include/asm/bitops/fls.h b/arch/openrisc/include/asm/bitops/fls.h new file mode 100644 index 0000000..9efbf9a --- /dev/null +++ b/arch/openrisc/include/asm/bitops/fls.h @@ -0,0 +1,33 @@ +/* + * OpenRISC Linux + * + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * + * 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. + */ + +#ifndef __ASM_OPENRISC_FLS_H +#define __ASM_OPENRISC_FLS_H + + +#ifdef CONFIG_OPENRISC_HAVE_INST_FL1 + +static inline int fls(int x) +{ + int ret; + + __asm__ ("l.fl1 %0,%1" + : "=r" (ret) + : "r" (x)); + + return ret; +} + +#else +#include <asm-generic/bitops/fls.h> +#endif + +#endif /* __ASM_OPENRISC_FLS_H */ diff --git a/arch/openrisc/include/asm/byteorder.h b/arch/openrisc/include/asm/byteorder.h new file mode 100644 index 0000000..60d14f7 --- /dev/null +++ b/arch/openrisc/include/asm/byteorder.h @@ -0,0 +1 @@ +#include <linux/byteorder/big_endian.h> diff --git a/arch/openrisc/include/asm/cpuinfo.h b/arch/openrisc/include/asm/cpuinfo.h new file mode 100644 index 0000000..917318b --- /dev/null +++ b/arch/openrisc/include/asm/cpuinfo.h @@ -0,0 +1,34 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_CPUINFO_H +#define __ASM_OPENRISC_CPUINFO_H + +struct cpuinfo { + u32 clock_frequency; + + u32 icache_size; + u32 icache_block_size; + + u32 dcache_size; + u32 dcache_block_size; +}; + +extern struct cpuinfo cpuinfo; + +#endif /* __ASM_OPENRISC_CPUINFO_H */ diff --git a/arch/openrisc/include/asm/delay.h b/arch/openrisc/include/asm/delay.h new file mode 100644 index 0000000..17f8bf5 --- /dev/null +++ b/arch/openrisc/include/asm/delay.h @@ -0,0 +1,24 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * + * 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. + */ + +#ifndef __ASM_OPENRISC_DELAY_H +#define __ASM_OPENRISC_DELAY_H + +#include <asm-generic/delay.h> + +extern unsigned long loops_per_jiffy; + +#endif diff --git a/arch/openrisc/include/asm/elf.h b/arch/openrisc/include/asm/elf.h new file mode 100644 index 0000000..2ce603b --- /dev/null +++ b/arch/openrisc/include/asm/elf.h @@ -0,0 +1,108 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_ELF_H +#define __ASM_OPENRISC_ELF_H + +/* + * ELF register definitions.. + */ +#include <linux/types.h> +#include <linux/ptrace.h> + + +/* The OR1K relocation types... not all relevant for module loader */ +#define R_OR32_NONE 0 +#define R_OR32_32 1 +#define R_OR32_16 2 +#define R_OR32_8 3 +#define R_OR32_CONST 4 +#define R_OR32_CONSTH 5 +#define R_OR32_JUMPTARG 6 +#define R_OR32_VTINHERIT 7 +#define R_OR32_VTENTRY 8 + +typedef unsigned long elf_greg_t; + +/* + * Note that NGREG is defined to ELF_NGREG in include/linux/elfcore.h, and is + * thus exposed to user-space. + */ +#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* A placeholder; OR32 does not have fp support yes, so no fp regs for now. */ +typedef unsigned long elf_fpregset_t; + +/* This should be moved to include/linux/elf.h */ +#define EM_OR32 0x8472 +#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_ARCH EM_OR32 +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2MSB + +#ifdef __KERNEL__ + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ + +#define elf_check_arch(x) \ + (((x)->e_machine == EM_OR32) || ((x)->e_machine == EM_OPENRISC)) + +/* This is the location that an ET_DYN program is loaded if exec'ed. Typical + use of this is to invoke "./ld.so someprog" to test out a new version of + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +#define ELF_ET_DYN_BASE (0x08000000) + +/* + * Enable dump using regset. + * This covers all of general/DSP/FPU regs. + */ +#define CORE_DUMP_USE_REGSET + +#define ELF_EXEC_PAGESIZE 8192 + +extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt); +#define ELF_CORE_COPY_REGS(dest, regs) dump_elf_thread(dest, regs); + +/* This yields a mask that user programs can use to figure out what + instruction set this cpu supports. This could be done in userspace, + but it's not easy, and we've already done it here. */ + +#define ELF_HWCAP (0) + +/* This yields a string that ld.so will use to load implementation + specific libraries for optimization. This is more specific in + intent than poking at uname or /proc/cpuinfo. + + For the moment, we have only optimizations for the Intel generations, + but that could change... */ + +#define ELF_PLATFORM (NULL) + +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) + +#endif /* __KERNEL__ */ +#endif diff --git a/arch/openrisc/include/asm/io.h b/arch/openrisc/include/asm/io.h new file mode 100644 index 0000000..07f5299 --- /dev/null +++ b/arch/openrisc/include/asm/io.h @@ -0,0 +1,51 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_IO_H +#define __ASM_OPENRISC_IO_H + +/* + * PCI: can we really do 0 here if we have no port IO? + */ +#define IO_SPACE_LIMIT 0 + +/* OpenRISC has no port IO */ +#define HAVE_ARCH_PIO_SIZE 1 +#define PIO_RESERVED 0X0UL +#define PIO_OFFSET 0 +#define PIO_MASK 0 + +#include <asm-generic/io.h> + +extern void __iomem *__ioremap(phys_addr_t offset, unsigned long size, + pgprot_t prot); + +static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size) +{ + return __ioremap(offset, size, PAGE_KERNEL); +} + +/* #define _PAGE_CI 0x002 */ +static inline void __iomem *ioremap_nocache(phys_addr_t offset, + unsigned long size) +{ + return __ioremap(offset, size, + __pgprot(pgprot_val(PAGE_KERNEL) | _PAGE_CI)); +} + +extern void iounmap(void *addr); +#endif diff --git a/arch/openrisc/include/asm/linkage.h b/arch/openrisc/include/asm/linkage.h new file mode 100644 index 0000000..e263875 --- /dev/null +++ b/arch/openrisc/include/asm/linkage.h @@ -0,0 +1,25 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_LINKAGE_H +#define __ASM_OPENRISC_LINKAGE_H + +#define __ALIGN .align 0 +#define __ALIGN_STR ".align 0" + +#endif /* __ASM_OPENRISC_LINKAGE_H */ diff --git a/arch/openrisc/include/asm/mutex.h b/arch/openrisc/include/asm/mutex.h new file mode 100644 index 0000000..b85a0cf --- /dev/null +++ b/arch/openrisc/include/asm/mutex.h @@ -0,0 +1,27 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +/* + * Pull in the generic implementation for the mutex fastpath. + * + * TODO: implement optimized primitives instead, or leave the generic + * implementation in place, or pick the atomic_xchg() based generic + * implementation. (see asm-generic/mutex-xchg.h for details) + */ + +#include <asm-generic/mutex-dec.h> diff --git a/arch/openrisc/include/asm/param.h b/arch/openrisc/include/asm/param.h new file mode 100644 index 0000000..c39a336 --- /dev/null +++ b/arch/openrisc/include/asm/param.h @@ -0,0 +1,26 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_PARAM_H +#define __ASM_OPENRISC_PARAM_H + +#define EXEC_PAGESIZE 8192 + +#include <asm-generic/param.h> + +#endif /* __ASM_OPENRISC_PARAM_H */ diff --git a/arch/openrisc/include/asm/processor.h b/arch/openrisc/include/asm/processor.h new file mode 100644 index 0000000..bb54c97 --- /dev/null +++ b/arch/openrisc/include/asm/processor.h @@ -0,0 +1,113 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_PROCESSOR_H +#define __ASM_OPENRISC_PROCESSOR_H + +#include <asm/spr_defs.h> +#include <asm/page.h> +#include <asm/ptrace.h> + +#define STACK_TOP TASK_SIZE +#define STACK_TOP_MAX STACK_TOP +/* Kernel and user SR register setting */ +#define KERNEL_SR (SPR_SR_DME | SPR_SR_IME | SPR_SR_ICE \ + | SPR_SR_DCE | SPR_SR_SM) +#define USER_SR (SPR_SR_DME | SPR_SR_IME | SPR_SR_ICE \ + | SPR_SR_DCE | SPR_SR_IEE | SPR_SR_TEE) +/* + * Default implementation of macro that returns current + * instruction pointer ("program counter"). + */ +#define current_text_addr() ({ __label__ _l; _l: &&_l; }) + +/* + * User space process size. This is hardcoded into a few places, + * so don't change it unless you know what you are doing. + */ + +#define TASK_SIZE (0x80000000UL) + +/* This decides where the kernel will search for a free chunk of vm + * space during mmap's. + */ +#define TASK_UNMAPPED_BASE (TASK_SIZE / 8 * 3) + +#ifndef __ASSEMBLY__ + +struct task_struct; + +struct thread_struct { +}; + +/* + * At user->kernel entry, the pt_regs struct is stacked on the top of the + * kernel-stack. This macro allows us to find those regs for a task. + * Notice that subsequent pt_regs stackings, like recursive interrupts + * occurring while we're in the kernel, won't affect this - only the first + * user->kernel transition registers are reached by this (i.e. not regs + * for running signal handler) + */ +#define user_regs(thread_info) (((struct pt_regs *)((unsigned long)(thread_info) + THREAD_SIZE - STACK_FRAME_OVERHEAD)) - 1) + +/* + * Dito but for the currently running task + */ + +#define task_pt_regs(task) user_regs(task_thread_info(task)) +#define current_regs() user_regs(current_thread_info()) + +extern inline void prepare_to_copy(struct task_struct *tsk) +{ +} + +#define INIT_SP (sizeof(init_stack) + (unsigned long) &init_stack) + +#define INIT_THREAD { } + + +#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc); +#define KSTK_ESP(tsk) (task_pt_regs(tsk)->sp); + + +extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); + +void start_thread(struct pt_regs *regs, unsigned long nip, unsigned long sp); +void release_thread(struct task_struct *); +unsigned long get_wchan(struct task_struct *p); + +/* + * Free current thread data structures etc.. + */ + +extern inline void exit_thread(void) +{ + /* Nothing needs to be done. */ +} + +/* + * Return saved PC of a blocked thread. For now, this is the "user" PC + */ +extern unsigned long thread_saved_pc(struct task_struct *t); + +#define init_stack (init_thread_union.stack) + +#define cpu_relax() do { } while (0) + +#endif /* __ASSEMBLY__ */ +#endif /* __ASM_OPENRISC_PROCESSOR_H */ diff --git a/arch/openrisc/include/asm/serial.h b/arch/openrisc/include/asm/serial.h new file mode 100644 index 0000000..270a452 --- /dev/null +++ b/arch/openrisc/include/asm/serial.h @@ -0,0 +1,36 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_SERIAL_H +#define __ASM_OPENRISC_SERIAL_H + +#ifdef __KERNEL__ + +#include <asm/cpuinfo.h> + +/* There's a generic version of this file, but it assumes a 1.8MHz UART clk... + * this, on the other hand, assumes the UART clock is tied to the system + * clock... 8250_early.c (early 8250 serial console) actually uses this, so + * it needs to be correct to get the early console working. + */ + +#define BASE_BAUD (cpuinfo.clock_frequency/16) + +#endif /* __KERNEL__ */ + +#endif /* __ASM_OPENRISC_SERIAL_H */ diff --git a/arch/openrisc/include/asm/spinlock.h b/arch/openrisc/include/asm/spinlock.h new file mode 100644 index 0000000..fd00a3a --- /dev/null +++ b/arch/openrisc/include/asm/spinlock.h @@ -0,0 +1,24 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_SPINLOCK_H +#define __ASM_OPENRISC_SPINLOCK_H + +#error "or32 doesn't do SMP yet" + +#endif diff --git a/arch/openrisc/include/asm/spr.h b/arch/openrisc/include/asm/spr.h new file mode 100644 index 0000000..1cccb42 --- /dev/null +++ b/arch/openrisc/include/asm/spr.h @@ -0,0 +1,42 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * + * 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. + */ + +#ifndef __ASM_OPENRISC_SPR_H +#define __ASM_OPENRISC_SPR_H + +#define mtspr(_spr, _val) __asm__ __volatile__ ( \ + "l.mtspr r0,%1,%0" \ + : : "K" (_spr), "r" (_val)) +#define mtspr_off(_spr, _off, _val) __asm__ __volatile__ ( \ + "l.mtspr %0,%1,%2" \ + : : "r" (_off), "r" (_val), "K" (_spr)) + +static inline unsigned long mfspr(unsigned long add) +{ + unsigned long ret; + __asm__ __volatile__ ("l.mfspr %0,r0,%1" : "=r" (ret) : "K" (add)); + return ret; +} + +static inline unsigned long mfspr_off(unsigned long add, unsigned long offset) +{ + unsigned long ret; + __asm__ __volatile__ ("l.mfspr %0,%1,%2" : "=r" (ret) + : "r" (offset), "K" (add)); + return ret; +} + +#endif diff --git a/arch/openrisc/include/asm/spr_defs.h b/arch/openrisc/include/asm/spr_defs.h new file mode 100644 index 0000000..5dbc668 --- /dev/null +++ b/arch/openrisc/include/asm/spr_defs.h @@ -0,0 +1,604 @@ +/* + * OpenRISC Linux + * + * SPR Definitions + * + * Copyright (C) 2000 Damjan Lampret + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2008, 2010 Embecosm Limited + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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 file is part of OpenRISC 1000 Architectural Simulator. + */ + +#ifndef SPR_DEFS__H +#define SPR_DEFS__H + +/* Definition of special-purpose registers (SPRs). */ + +#define MAX_GRPS (32) +#define MAX_SPRS_PER_GRP_BITS (11) +#define MAX_SPRS_PER_GRP (1 << MAX_SPRS_PER_GRP_BITS) +#define MAX_SPRS (0x10000) + +/* Base addresses for the groups */ +#define SPRGROUP_SYS (0 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_DMMU (1 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_IMMU (2 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_DC (3 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_IC (4 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_MAC (5 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_D (6 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_PC (7 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_PM (8 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_PIC (9 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_TT (10 << MAX_SPRS_PER_GRP_BITS) +#define SPRGROUP_FP (11 << MAX_SPRS_PER_GRP_BITS) + +/* System control and status group */ +#define SPR_VR (SPRGROUP_SYS + 0) +#define SPR_UPR (SPRGROUP_SYS + 1) +#define SPR_CPUCFGR (SPRGROUP_SYS + 2) +#define SPR_DMMUCFGR (SPRGROUP_SYS + 3) +#define SPR_IMMUCFGR (SPRGROUP_SYS + 4) +#define SPR_DCCFGR (SPRGROUP_SYS + 5) +#define SPR_ICCFGR (SPRGROUP_SYS + 6) +#define SPR_DCFGR (SPRGROUP_SYS + 7) +#define SPR_PCCFGR (SPRGROUP_SYS + 8) +#define SPR_NPC (SPRGROUP_SYS + 16) /* CZ 21/06/01 */ +#define SPR_SR (SPRGROUP_SYS + 17) /* CZ 21/06/01 */ +#define SPR_PPC (SPRGROUP_SYS + 18) /* CZ 21/06/01 */ +#define SPR_FPCSR (SPRGROUP_SYS + 20) /* CZ 21/06/01 */ +#define SPR_EPCR_BASE (SPRGROUP_SYS + 32) /* CZ 21/06/01 */ +#define SPR_EPCR_LAST (SPRGROUP_SYS + 47) /* CZ 21/06/01 */ +#define SPR_EEAR_BASE (SPRGROUP_SYS + 48) +#define SPR_EEAR_LAST (SPRGROUP_SYS + 63) +#define SPR_ESR_BASE (SPRGROUP_SYS + 64) +#define SPR_ESR_LAST (SPRGROUP_SYS + 79) +#define SPR_GPR_BASE (SPRGROUP_SYS + 1024) + +/* Data MMU group */ +#define SPR_DMMUCR (SPRGROUP_DMMU + 0) +#define SPR_DTLBEIR (SPRGROUP_DMMU + 2) +#define SPR_DTLBMR_BASE(WAY) (SPRGROUP_DMMU + 0x200 + (WAY) * 0x100) +#define SPR_DTLBMR_LAST(WAY) (SPRGROUP_DMMU + 0x27f + (WAY) * 0x100) +#define SPR_DTLBTR_BASE(WAY) (SPRGROUP_DMMU + 0x280 + (WAY) * 0x100) +#define SPR_DTLBTR_LAST(WAY) (SPRGROUP_DMMU + 0x2ff + (WAY) * 0x100) + +/* Instruction MMU group */ +#define SPR_IMMUCR (SPRGROUP_IMMU + 0) +#define SPR_ITLBEIR (SPRGROUP_IMMU + 2) +#define SPR_ITLBMR_BASE(WAY) (SPRGROUP_IMMU + 0x200 + (WAY) * 0x100) +#define SPR_ITLBMR_LAST(WAY) (SPRGROUP_IMMU + 0x27f + (WAY) * 0x100) +#define SPR_ITLBTR_BASE(WAY) (SPRGROUP_IMMU + 0x280 + (WAY) * 0x100) +#define SPR_ITLBTR_LAST(WAY) (SPRGROUP_IMMU + 0x2ff + (WAY) * 0x100) + +/* Data cache group */ +#define SPR_DCCR (SPRGROUP_DC + 0) +#define SPR_DCBPR (SPRGROUP_DC + 1) +#define SPR_DCBFR (SPRGROUP_DC + 2) +#define SPR_DCBIR (SPRGROUP_DC + 3) +#define SPR_DCBWR (SPRGROUP_DC + 4) +#define SPR_DCBLR (SPRGROUP_DC + 5) +#define SPR_DCR_BASE(WAY) (SPRGROUP_DC + 0x200 + (WAY) * 0x200) +#define SPR_DCR_LAST(WAY) (SPRGROUP_DC + 0x3ff + (WAY) * 0x200) + +/* Instruction cache group */ +#define SPR_ICCR (SPRGROUP_IC + 0) +#define SPR_ICBPR (SPRGROUP_IC + 1) +#define SPR_ICBIR (SPRGROUP_IC + 2) +#define SPR_ICBLR (SPRGROUP_IC + 3) +#define SPR_ICR_BASE(WAY) (SPRGROUP_IC + 0x200 + (WAY) * 0x200) +#define SPR_ICR_LAST(WAY) (SPRGROUP_IC + 0x3ff + (WAY) * 0x200) + +/* MAC group */ +#define SPR_MACLO (SPRGROUP_MAC + 1) +#define SPR_MACHI (SPRGROUP_MAC + 2) + +/* Debug group */ +#define SPR_DVR(N) (SPRGROUP_D + (N)) +#define SPR_DCR(N) (SPRGROUP_D + 8 + (N)) +#define SPR_DMR1 (SPRGROUP_D + 16) +#define SPR_DMR2 (SPRGROUP_D + 17) +#define SPR_DWCR0 (SPRGROUP_D + 18) +#define SPR_DWCR1 (SPRGROUP_D + 19) +#define SPR_DSR (SPRGROUP_D + 20) +#define SPR_DRR (SPRGROUP_D + 21) + +/* Performance counters group */ +#define SPR_PCCR(N) (SPRGROUP_PC + (N)) +#define SPR_PCMR(N) (SPRGROUP_PC + 8 + (N)) + +/* Power management group */ +#define SPR_PMR (SPRGROUP_PM + 0) + +/* PIC group */ +#define SPR_PICMR (SPRGROUP_PIC + 0) +#define SPR_PICPR (SPRGROUP_PIC + 1) +#define SPR_PICSR (SPRGROUP_PIC + 2) + +/* Tick Timer group */ +#define SPR_TTMR (SPRGROUP_TT + 0) +#define SPR_TTCR (SPRGROUP_TT + 1) + +/* + * Bit definitions for the Version Register + * + */ +#define SPR_VR_VER 0xff000000 /* Processor version */ +#define SPR_VR_CFG 0x00ff0000 /* Processor configuration */ +#define SPR_VR_RES 0x0000ffc0 /* Reserved */ +#define SPR_VR_REV 0x0000003f /* Processor revision */ + +#define SPR_VR_VER_OFF 24 +#define SPR_VR_CFG_OFF 16 +#define SPR_VR_REV_OFF 0 + +/* + * Bit definitions for the Unit Present Register + * + */ +#define SPR_UPR_UP 0x00000001 /* UPR present */ +#define SPR_UPR_DCP 0x00000002 /* Data cache present */ +#define SPR_UPR_ICP 0x00000004 /* Instruction cache present */ +#define SPR_UPR_DMP 0x00000008 /* Data MMU present */ +#define SPR_UPR_IMP 0x00000010 /* Instruction MMU present */ +#define SPR_UPR_MP 0x00000020 /* MAC present */ +#define SPR_UPR_DUP 0x00000040 /* Debug unit present */ +#define SPR_UPR_PCUP 0x00000080 /* Performance counters unit present */ +#define SPR_UPR_PMP 0x00000100 /* Power management present */ +#define SPR_UPR_PICP 0x00000200 /* PIC present */ +#define SPR_UPR_TTP 0x00000400 /* Tick timer present */ +#define SPR_UPR_RES 0x00fe0000 /* Reserved */ +#define SPR_UPR_CUP 0xff000000 /* Context units present */ + +/* + * JPB: Bit definitions for the CPU configuration register + * + */ +#define SPR_CPUCFGR_NSGF 0x0000000f /* Number of shadow GPR files */ +#define SPR_CPUCFGR_CGF 0x00000010 /* Custom GPR file */ +#define SPR_CPUCFGR_OB32S 0x00000020 /* ORBIS32 supported */ +#define SPR_CPUCFGR_OB64S 0x00000040 /* ORBIS64 supported */ +#define SPR_CPUCFGR_OF32S 0x00000080 /* ORFPX32 supported */ +#define SPR_CPUCFGR_OF64S 0x00000100 /* ORFPX64 supported */ +#define SPR_CPUCFGR_OV64S 0x00000200 /* ORVDX64 supported */ +#define SPR_CPUCFGR_RES 0xfffffc00 /* Reserved */ + +/* + * JPB: Bit definitions for the Debug configuration register and other + * constants. + * + */ + +#define SPR_DCFGR_NDP 0x00000007 /* Number of matchpoints mask */ +#define SPR_DCFGR_NDP1 0x00000000 /* One matchpoint supported */ +#define SPR_DCFGR_NDP2 0x00000001 /* Two matchpoints supported */ +#define SPR_DCFGR_NDP3 0x00000002 /* Three matchpoints supported */ +#define SPR_DCFGR_NDP4 0x00000003 /* Four matchpoints supported */ +#define SPR_DCFGR_NDP5 0x00000004 /* Five matchpoints supported */ +#define SPR_DCFGR_NDP6 0x00000005 /* Six matchpoints supported */ +#define SPR_DCFGR_NDP7 0x00000006 /* Seven matchpoints supported */ +#define SPR_DCFGR_NDP8 0x00000007 /* Eight matchpoints supported */ +#define SPR_DCFGR_WPCI 0x00000008 /* Watchpoint counters implemented */ + +#define MATCHPOINTS_TO_NDP(n) (1 == n ? SPR_DCFGR_NDP1 : \ + 2 == n ? SPR_DCFGR_NDP2 : \ + 3 == n ? SPR_DCFGR_NDP3 : \ + 4 == n ? SPR_DCFGR_NDP4 : \ + 5 == n ? SPR_DCFGR_NDP5 : \ + 6 == n ? SPR_DCFGR_NDP6 : \ + 7 == n ? SPR_DCFGR_NDP7 : SPR_DCFGR_NDP8) +#define MAX_MATCHPOINTS 8 +#define MAX_WATCHPOINTS (MAX_MATCHPOINTS + 2) + +/* + * Bit definitions for the Supervision Register + * + */ +#define SPR_SR_SM 0x00000001 /* Supervisor Mode */ +#define SPR_SR_TEE 0x00000002 /* Tick timer Exception Enable */ +#define SPR_SR_IEE 0x00000004 /* Interrupt Exception Enable */ +#define SPR_SR_DCE 0x00000008 /* Data Cache Enable */ +#define SPR_SR_ICE 0x00000010 /* Instruction Cache Enable */ +#define SPR_SR_DME 0x00000020 /* Data MMU Enable */ +#define SPR_SR_IME 0x00000040 /* Instruction MMU Enable */ +#define SPR_SR_LEE 0x00000080 /* Little Endian Enable */ +#define SPR_SR_CE 0x00000100 /* CID Enable */ +#define SPR_SR_F 0x00000200 /* Condition Flag */ +#define SPR_SR_CY 0x00000400 /* Carry flag */ +#define SPR_SR_OV 0x00000800 /* Overflow flag */ +#define SPR_SR_OVE 0x00001000 /* Overflow flag Exception */ +#define SPR_SR_DSX 0x00002000 /* Delay Slot Exception */ +#define SPR_SR_EPH 0x00004000 /* Exception Prefix High */ +#define SPR_SR_FO 0x00008000 /* Fixed one */ +#define SPR_SR_SUMRA 0x00010000 /* Supervisor SPR read access */ +#define SPR_SR_RES 0x0ffe0000 /* Reserved */ +#define SPR_SR_CID 0xf0000000 /* Context ID */ + +/* + * Bit definitions for the Data MMU Control Register + * + */ +#define SPR_DMMUCR_P2S 0x0000003e /* Level 2 Page Size */ +#define SPR_DMMUCR_P1S 0x000007c0 /* Level 1 Page Size */ +#define SPR_DMMUCR_VADDR_WIDTH 0x0000f800 /* Virtual ADDR Width */ +#define SPR_DMMUCR_PADDR_WIDTH 0x000f0000 /* Physical ADDR Width */ + +/* + * Bit definitions for the Instruction MMU Control Register + * + */ +#define SPR_IMMUCR_P2S 0x0000003e /* Level 2 Page Size */ +#define SPR_IMMUCR_P1S 0x000007c0 /* Level 1 Page Size */ +#define SPR_IMMUCR_VADDR_WIDTH 0x0000f800 /* Virtual ADDR Width */ +#define SPR_IMMUCR_PADDR_WIDTH 0x000f0000 /* Physical ADDR Width */ + +/* + * Bit definitions for the Data TLB Match Register + * + */ +#define SPR_DTLBMR_V 0x00000001 /* Valid */ +#define SPR_DTLBMR_PL1 0x00000002 /* Page Level 1 (if 0 then PL2) */ +#define SPR_DTLBMR_CID 0x0000003c /* Context ID */ +#define SPR_DTLBMR_LRU 0x000000c0 /* Least Recently Used */ +#define SPR_DTLBMR_VPN 0xfffff000 /* Virtual Page Number */ + +/* + * Bit definitions for the Data TLB Translate Register + * + */ +#define SPR_DTLBTR_CC 0x00000001 /* Cache Coherency */ +#define SPR_DTLBTR_CI 0x00000002 /* Cache Inhibit */ +#define SPR_DTLBTR_WBC 0x00000004 /* Write-Back Cache */ +#define SPR_DTLBTR_WOM 0x00000008 /* Weakly-Ordered Memory */ +#define SPR_DTLBTR_A 0x00000010 /* Accessed */ +#define SPR_DTLBTR_D 0x00000020 /* Dirty */ +#define SPR_DTLBTR_URE 0x00000040 /* User Read Enable */ +#define SPR_DTLBTR_UWE 0x00000080 /* User Write Enable */ +#define SPR_DTLBTR_SRE 0x00000100 /* Supervisor Read Enable */ +#define SPR_DTLBTR_SWE 0x00000200 /* Supervisor Write Enable */ +#define SPR_DTLBTR_PPN 0xfffff000 /* Physical Page Number */ + +/* + * Bit definitions for the Instruction TLB Match Register + * + */ +#define SPR_ITLBMR_V 0x00000001 /* Valid */ +#define SPR_ITLBMR_PL1 0x00000002 /* Page Level 1 (if 0 then PL2) */ +#define SPR_ITLBMR_CID 0x0000003c /* Context ID */ +#define SPR_ITLBMR_LRU 0x000000c0 /* Least Recently Used */ +#define SPR_ITLBMR_VPN 0xfffff000 /* Virtual Page Number */ + +/* + * Bit definitions for the Instruction TLB Translate Register + * + */ +#define SPR_ITLBTR_CC 0x00000001 /* Cache Coherency */ +#define SPR_ITLBTR_CI 0x00000002 /* Cache Inhibit */ +#define SPR_ITLBTR_WBC 0x00000004 /* Write-Back Cache */ +#define SPR_ITLBTR_WOM 0x00000008 /* Weakly-Ordered Memory */ +#define SPR_ITLBTR_A 0x00000010 /* Accessed */ +#define SPR_ITLBTR_D 0x00000020 /* Dirty */ +#define SPR_ITLBTR_SXE 0x00000040 /* User Read Enable */ +#define SPR_ITLBTR_UXE 0x00000080 /* User Write Enable */ +#define SPR_ITLBTR_PPN 0xfffff000 /* Physical Page Number */ + +/* + * Bit definitions for Data Cache Control register + * + */ +#define SPR_DCCR_EW 0x000000ff /* Enable ways */ + +/* + * Bit definitions for Insn Cache Control register + * + */ +#define SPR_ICCR_EW 0x000000ff /* Enable ways */ + +/* + * Bit definitions for Data Cache Configuration Register + * + */ + +#define SPR_DCCFGR_NCW 0x00000007 +#define SPR_DCCFGR_NCS 0x00000078 +#define SPR_DCCFGR_CBS 0x00000080 +#define SPR_DCCFGR_CWS 0x00000100 +#define SPR_DCCFGR_CCRI 0x00000200 +#define SPR_DCCFGR_CBIRI 0x00000400 +#define SPR_DCCFGR_CBPRI 0x00000800 +#define SPR_DCCFGR_CBLRI 0x00001000 +#define SPR_DCCFGR_CBFRI 0x00002000 +#define SPR_DCCFGR_CBWBRI 0x00004000 + +#define SPR_DCCFGR_NCW_OFF 0 +#define SPR_DCCFGR_NCS_OFF 3 +#define SPR_DCCFGR_CBS_OFF 7 + +/* + * Bit definitions for Instruction Cache Configuration Register + * + */ +#define SPR_ICCFGR_NCW 0x00000007 +#define SPR_ICCFGR_NCS 0x00000078 +#define SPR_ICCFGR_CBS 0x00000080 +#define SPR_ICCFGR_CCRI 0x00000200 +#define SPR_ICCFGR_CBIRI 0x00000400 +#define SPR_ICCFGR_CBPRI 0x00000800 +#define SPR_ICCFGR_CBLRI 0x00001000 + +#define SPR_ICCFGR_NCW_OFF 0 +#define SPR_ICCFGR_NCS_OFF 3 +#define SPR_ICCFGR_CBS_OFF 7 + +/* + * Bit definitions for Data MMU Configuration Register + * + */ + +#define SPR_DMMUCFGR_NTW 0x00000003 +#define SPR_DMMUCFGR_NTS 0x0000001C +#define SPR_DMMUCFGR_NAE 0x000000E0 +#define SPR_DMMUCFGR_CRI 0x00000100 +#define SPR_DMMUCFGR_PRI 0x00000200 +#define SPR_DMMUCFGR_TEIRI 0x00000400 +#define SPR_DMMUCFGR_HTR 0x00000800 + +#define SPR_DMMUCFGR_NTW_OFF 0 +#define SPR_DMMUCFGR_NTS_OFF 2 + +/* + * Bit definitions for Instruction MMU Configuration Register + * + */ + +#define SPR_IMMUCFGR_NTW 0x00000003 +#define SPR_IMMUCFGR_NTS 0x0000001C +#define SPR_IMMUCFGR_NAE 0x000000E0 +#define SPR_IMMUCFGR_CRI 0x00000100 +#define SPR_IMMUCFGR_PRI 0x00000200 +#define SPR_IMMUCFGR_TEIRI 0x00000400 +#define SPR_IMMUCFGR_HTR 0x00000800 + +#define SPR_IMMUCFGR_NTW_OFF 0 +#define SPR_IMMUCFGR_NTS_OFF 2 + +/* + * Bit definitions for Debug Control registers + * + */ +#define SPR_DCR_DP 0x00000001 /* DVR/DCR present */ +#define SPR_DCR_CC 0x0000000e /* Compare condition */ +#define SPR_DCR_SC 0x00000010 /* Signed compare */ +#define SPR_DCR_CT 0x000000e0 /* Compare to */ + +/* Bit results with SPR_DCR_CC mask */ +#define SPR_DCR_CC_MASKED 0x00000000 +#define SPR_DCR_CC_EQUAL 0x00000002 +#define SPR_DCR_CC_LESS 0x00000004 +#define SPR_DCR_CC_LESSE 0x00000006 +#define SPR_DCR_CC_GREAT 0x00000008 +#define SPR_DCR_CC_GREATE 0x0000000a +#define SPR_DCR_CC_NEQUAL 0x0000000c + +/* Bit results with SPR_DCR_CT mask */ +#define SPR_DCR_CT_DISABLED 0x00000000 +#define SPR_DCR_CT_IFEA 0x00000020 +#define SPR_DCR_CT_LEA 0x00000040 +#define SPR_DCR_CT_SEA 0x00000060 +#define SPR_DCR_CT_LD 0x00000080 +#define SPR_DCR_CT_SD 0x000000a0 +#define SPR_DCR_CT_LSEA 0x000000c0 +#define SPR_DCR_CT_LSD 0x000000e0 +/* SPR_DCR_CT_LSD doesn't seem to be implemented anywhere in or1ksim. 2004-1-30 HP */ + +/* + * Bit definitions for Debug Mode 1 register + * + */ +#define SPR_DMR1_CW 0x000fffff /* Chain register pair data */ +#define SPR_DMR1_CW0_AND 0x00000001 +#define SPR_DMR1_CW0_OR 0x00000002 +#define SPR_DMR1_CW0 (SPR_DMR1_CW0_AND | SPR_DMR1_CW0_OR) +#define SPR_DMR1_CW1_AND 0x00000004 +#define SPR_DMR1_CW1_OR 0x00000008 +#define SPR_DMR1_CW1 (SPR_DMR1_CW1_AND | SPR_DMR1_CW1_OR) +#define SPR_DMR1_CW2_AND 0x00000010 +#define SPR_DMR1_CW2_OR 0x00000020 +#define SPR_DMR1_CW2 (SPR_DMR1_CW2_AND | SPR_DMR1_CW2_OR) +#define SPR_DMR1_CW3_AND 0x00000040 +#define SPR_DMR1_CW3_OR 0x00000080 +#define SPR_DMR1_CW3 (SPR_DMR1_CW3_AND | SPR_DMR1_CW3_OR) +#define SPR_DMR1_CW4_AND 0x00000100 +#define SPR_DMR1_CW4_OR 0x00000200 +#define SPR_DMR1_CW4 (SPR_DMR1_CW4_AND | SPR_DMR1_CW4_OR) +#define SPR_DMR1_CW5_AND 0x00000400 +#define SPR_DMR1_CW5_OR 0x00000800 +#define SPR_DMR1_CW5 (SPR_DMR1_CW5_AND | SPR_DMR1_CW5_OR) +#define SPR_DMR1_CW6_AND 0x00001000 +#define SPR_DMR1_CW6_OR 0x00002000 +#define SPR_DMR1_CW6 (SPR_DMR1_CW6_AND | SPR_DMR1_CW6_OR) +#define SPR_DMR1_CW7_AND 0x00004000 +#define SPR_DMR1_CW7_OR 0x00008000 +#define SPR_DMR1_CW7 (SPR_DMR1_CW7_AND | SPR_DMR1_CW7_OR) +#define SPR_DMR1_CW8_AND 0x00010000 +#define SPR_DMR1_CW8_OR 0x00020000 +#define SPR_DMR1_CW8 (SPR_DMR1_CW8_AND | SPR_DMR1_CW8_OR) +#define SPR_DMR1_CW9_AND 0x00040000 +#define SPR_DMR1_CW9_OR 0x00080000 +#define SPR_DMR1_CW9 (SPR_DMR1_CW9_AND | SPR_DMR1_CW9_OR) +#define SPR_DMR1_RES1 0x00300000 /* Reserved */ +#define SPR_DMR1_ST 0x00400000 /* Single-step trace*/ +#define SPR_DMR1_BT 0x00800000 /* Branch trace */ +#define SPR_DMR1_RES2 0xff000000 /* Reserved */ + +/* + * Bit definitions for Debug Mode 2 register. AWTC and WGB corrected by JPB + * + */ +#define SPR_DMR2_WCE0 0x00000001 /* Watchpoint counter 0 enable */ +#define SPR_DMR2_WCE1 0x00000002 /* Watchpoint counter 0 enable */ +#define SPR_DMR2_AWTC 0x00000ffc /* Assign watchpoints to counters */ +#define SPR_DMR2_AWTC_OFF 2 /* Bit offset to AWTC field */ +#define SPR_DMR2_WGB 0x003ff000 /* Watchpoints generating breakpoint */ +#define SPR_DMR2_WGB_OFF 12 /* Bit offset to WGB field */ +#define SPR_DMR2_WBS 0xffc00000 /* JPB: Watchpoint status */ +#define SPR_DMR2_WBS_OFF 22 /* Bit offset to WBS field */ + +/* + * Bit definitions for Debug watchpoint counter registers + * + */ +#define SPR_DWCR_COUNT 0x0000ffff /* Count */ +#define SPR_DWCR_MATCH 0xffff0000 /* Match */ +#define SPR_DWCR_MATCH_OFF 16 /* Match bit offset */ + +/* + * Bit definitions for Debug stop register + * + */ +#define SPR_DSR_RSTE 0x00000001 /* Reset exception */ +#define SPR_DSR_BUSEE 0x00000002 /* Bus error exception */ +#define SPR_DSR_DPFE 0x00000004 /* Data Page Fault exception */ +#define SPR_DSR_IPFE 0x00000008 /* Insn Page Fault exception */ +#define SPR_DSR_TTE 0x00000010 /* Tick Timer exception */ +#define SPR_DSR_AE 0x00000020 /* Alignment exception */ +#define SPR_DSR_IIE 0x00000040 /* Illegal Instruction exception */ +#define SPR_DSR_IE 0x00000080 /* Interrupt exception */ +#define SPR_DSR_DME 0x00000100 /* DTLB miss exception */ +#define SPR_DSR_IME 0x00000200 /* ITLB miss exception */ +#define SPR_DSR_RE 0x00000400 /* Range exception */ +#define SPR_DSR_SCE 0x00000800 /* System call exception */ +#define SPR_DSR_FPE 0x00001000 /* Floating Point Exception */ +#define SPR_DSR_TE 0x00002000 /* Trap exception */ + +/* + * Bit definitions for Debug reason register + * + */ +#define SPR_DRR_RSTE 0x00000001 /* Reset exception */ +#define SPR_DRR_BUSEE 0x00000002 /* Bus error exception */ +#define SPR_DRR_DPFE 0x00000004 /* Data Page Fault exception */ +#define SPR_DRR_IPFE 0x00000008 /* Insn Page Fault exception */ +#define SPR_DRR_TTE 0x00000010 /* Tick Timer exception */ +#define SPR_DRR_AE 0x00000020 /* Alignment exception */ +#define SPR_DRR_IIE 0x00000040 /* Illegal Instruction exception */ +#define SPR_DRR_IE 0x00000080 /* Interrupt exception */ +#define SPR_DRR_DME 0x00000100 /* DTLB miss exception */ +#define SPR_DRR_IME 0x00000200 /* ITLB miss exception */ +#define SPR_DRR_RE 0x00000400 /* Range exception */ +#define SPR_DRR_SCE 0x00000800 /* System call exception */ +#define SPR_DRR_FPE 0x00001000 /* Floating Point Exception */ +#define SPR_DRR_TE 0x00002000 /* Trap exception */ + +/* + * Bit definitions for Performance counters mode registers + * + */ +#define SPR_PCMR_CP 0x00000001 /* Counter present */ +#define SPR_PCMR_UMRA 0x00000002 /* User mode read access */ +#define SPR_PCMR_CISM 0x00000004 /* Count in supervisor mode */ +#define SPR_PCMR_CIUM 0x00000008 /* Count in user mode */ +#define SPR_PCMR_LA 0x00000010 /* Load access event */ +#define SPR_PCMR_SA 0x00000020 /* Store access event */ +#define SPR_PCMR_IF 0x00000040 /* Instruction fetch event*/ +#define SPR_PCMR_DCM 0x00000080 /* Data cache miss event */ +#define SPR_PCMR_ICM 0x00000100 /* Insn cache miss event */ +#define SPR_PCMR_IFS 0x00000200 /* Insn fetch stall event */ +#define SPR_PCMR_LSUS 0x00000400 /* LSU stall event */ +#define SPR_PCMR_BS 0x00000800 /* Branch stall event */ +#define SPR_PCMR_DTLBM 0x00001000 /* DTLB miss event */ +#define SPR_PCMR_ITLBM 0x00002000 /* ITLB miss event */ +#define SPR_PCMR_DDS 0x00004000 /* Data dependency stall event */ +#define SPR_PCMR_WPE 0x03ff8000 /* Watchpoint events */ + +/* + * Bit definitions for the Power management register + * + */ +#define SPR_PMR_SDF 0x0000000f /* Slow down factor */ +#define SPR_PMR_DME 0x00000010 /* Doze mode enable */ +#define SPR_PMR_SME 0x00000020 /* Sleep mode enable */ +#define SPR_PMR_DCGE 0x00000040 /* Dynamic clock gating enable */ +#define SPR_PMR_SUME 0x00000080 /* Suspend mode enable */ + +/* + * Bit definitions for PICMR + * + */ +#define SPR_PICMR_IUM 0xfffffffc /* Interrupt unmask */ + +/* + * Bit definitions for PICPR + * + */ +#define SPR_PICPR_IPRIO 0xfffffffc /* Interrupt priority */ + +/* + * Bit definitions for PICSR + * + */ +#define SPR_PICSR_IS 0xffffffff /* Interrupt status */ + +/* + * Bit definitions for Tick Timer Control Register + * + */ + +#define SPR_TTCR_CNT 0xffffffff /* Count, time period */ +#define SPR_TTMR_TP 0x0fffffff /* Time period */ +#define SPR_TTMR_IP 0x10000000 /* Interrupt Pending */ +#define SPR_TTMR_IE 0x20000000 /* Interrupt Enable */ +#define SPR_TTMR_DI 0x00000000 /* Disabled */ +#define SPR_TTMR_RT 0x40000000 /* Restart tick */ +#define SPR_TTMR_SR 0x80000000 /* Single run */ +#define SPR_TTMR_CR 0xc0000000 /* Continuous run */ +#define SPR_TTMR_M 0xc0000000 /* Tick mode */ + +/* + * Bit definitions for the FP Control Status Register + * + */ +#define SPR_FPCSR_FPEE 0x00000001 /* Floating Point Exception Enable */ +#define SPR_FPCSR_RM 0x00000006 /* Rounding Mode */ +#define SPR_FPCSR_OVF 0x00000008 /* Overflow Flag */ +#define SPR_FPCSR_UNF 0x00000010 /* Underflow Flag */ +#define SPR_FPCSR_SNF 0x00000020 /* SNAN Flag */ +#define SPR_FPCSR_QNF 0x00000040 /* QNAN Flag */ +#define SPR_FPCSR_ZF 0x00000080 /* Zero Flag */ +#define SPR_FPCSR_IXF 0x00000100 /* Inexact Flag */ +#define SPR_FPCSR_IVF 0x00000200 /* Invalid Flag */ +#define SPR_FPCSR_INF 0x00000400 /* Infinity Flag */ +#define SPR_FPCSR_DZF 0x00000800 /* Divide By Zero Flag */ +#define SPR_FPCSR_ALLF (SPR_FPCSR_OVF | SPR_FPCSR_UNF | SPR_FPCSR_SNF | \ + SPR_FPCSR_QNF | SPR_FPCSR_ZF | SPR_FPCSR_IXF | \ + SPR_FPCSR_IVF | SPR_FPCSR_INF | SPR_FPCSR_DZF) + +#define FPCSR_RM_RN (0<<1) +#define FPCSR_RM_RZ (1<<1) +#define FPCSR_RM_RIP (2<<1) +#define FPCSR_RM_RIN (3<<1) + +/* + * l.nop constants + * + */ +#define NOP_NOP 0x0000 /* Normal nop instruction */ +#define NOP_EXIT 0x0001 /* End of simulation */ +#define NOP_REPORT 0x0002 /* Simple report */ +/*#define NOP_PRINTF 0x0003 Simprintf instruction (obsolete)*/ +#define NOP_PUTC 0x0004 /* JPB: Simputc instruction */ +#define NOP_CNT_RESET 0x0005 /* Reset statistics counters */ +#define NOP_GET_TICKS 0x0006 /* JPB: Get # ticks running */ +#define NOP_GET_PS 0x0007 /* JPB: Get picosecs/cycle */ +#define NOP_REPORT_FIRST 0x0400 /* Report with number */ +#define NOP_REPORT_LAST 0x03ff /* Report with number */ + +#endif /* SPR_DEFS__H */ diff --git a/arch/openrisc/include/asm/system.h b/arch/openrisc/include/asm/system.h new file mode 100644 index 0000000..cf65888 --- /dev/null +++ b/arch/openrisc/include/asm/system.h @@ -0,0 +1,35 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_SYSTEM_H +#define __ASM_OPENRISC_SYSTEM_H + +#ifdef __KERNEL__ +#ifndef __ASSEMBLY__ + +#include <asm/spr.h> +#include <asm-generic/system.h> + +/* We probably need this definition, but the generic system.h provides it + * and it's not used on our arch anyway... + */ +/*#define nop() __asm__ __volatile__ ("l.nop"::)*/ + +#endif /* __ASSEMBLY__ */ +#endif /* __KERNEL__ */ +#endif /* __ASM_OPENRISC_SYSTEM_H */ diff --git a/arch/openrisc/include/asm/unaligned.h b/arch/openrisc/include/asm/unaligned.h new file mode 100644 index 0000000..1141cbd --- /dev/null +++ b/arch/openrisc/include/asm/unaligned.h @@ -0,0 +1,51 @@ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + * + * 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. + */ + +#ifndef __ASM_OPENRISC_UNALIGNED_H +#define __ASM_OPENRISC_UNALIGNED_H + +/* + * This is copied from the generic implementation and the C-struct + * variant replaced with the memmove variant. The GCC compiler + * for the OR32 arch optimizes too aggressively for the C-struct + * variant to work, so use the memmove variant instead. + * + * It may be worth considering implementing the unaligned access + * exception handler and allowing unaligned accesses (access_ok.h)... + * not sure if it would be much of a performance win without further + * investigation. + */ +#include <asm/byteorder.h> + +#if defined(__LITTLE_ENDIAN) +# include <linux/unaligned/le_memmove.h> +# include <linux/unaligned/be_byteshift.h> +# include <linux/unaligned/generic.h> +# define get_unaligned __get_unaligned_le +# define put_unaligned __put_unaligned_le +#elif defined(__BIG_ENDIAN) +# include <linux/unaligned/be_memmove.h> +# include <linux/unaligned/le_byteshift.h> +# include <linux/unaligned/generic.h> +# define get_unaligned __get_unaligned_be +# define put_unaligned __put_unaligned_be +#else +# error need to define endianess +#endif + +#endif /* __ASM_OPENRISC_UNALIGNED_H */ |
