/* * arch/arm/include/asm/processor.h * * Copyright (C) 1995-1999 Russell King * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __ASM_ARM_PROCESSOR_H #define __ASM_ARM_PROCESSOR_H /* * Default implementation of macro that returns current * instruction pointer ("program counter"). */ #define current_text_addr() ({ __label__ _l; _l: &&_l;}) #ifdef __KERNEL__ #include <asm/hw_breakpoint.h> #include <asm/ptrace.h> #include <asm/types.h> #include <asm/unified.h> #ifdef __KERNEL__ #define STACK_TOP ((current->personality & ADDR_LIMIT_32BIT) ? \ TASK_SIZE : TASK_SIZE_26) #define STACK_TOP_MAX TASK_SIZE #endif struct debug_info { #ifdef CONFIG_HAVE_HW_BREAKPOINT struct perf_event *hbp[ARM_MAX_HBP_SLOTS]; #endif }; struct thread_struct { /* fault info */ unsigned long address; unsigned long trap_no; unsigned long error_code; /* debugging */ struct debug_info debug; }; #define INIT_THREAD { } #ifdef CONFIG_MMU #define nommu_start_thread(regs) do { } while (0) #else #define nommu_start_thread(regs) regs->ARM_r10 = current->mm->start_data #endif #define start_thread(regs,pc,sp) \ ({ \ memset(regs->uregs, 0, sizeof(regs->uregs)); \ if (current->personality & ADDR_LIMIT_32BIT) \ regs->ARM_cpsr = USR_MODE; \ else \ regs->ARM_cpsr = USR26_MODE; \ if (elf_hwcap & HWCAP_THUMB && pc & 1) \ regs->ARM_cpsr |= PSR_T_BIT; \ regs->ARM_cpsr |= PSR_ENDSTATE; \ regs->ARM_pc = pc & ~1; /* pc */ \ regs->ARM_sp = sp; /* sp */ \ nommu_start_thread(regs); \ }) /* Forward declaration, a strange C thing */ struct task_struct; /* Free all resources held by a thread. */ extern void release_thread(struct task_struct *); unsigned long get_wchan(struct task_struct *p); #if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327) #define cpu_relax() smp_mb() #else #define cpu_relax() barrier() #endif #define cpu_relax_lowlatency() cpu_relax() #define task_pt_regs(p) \ ((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1) #define KSTK_EIP(tsk) task_pt_regs(tsk)->ARM_pc #define KSTK_ESP(tsk) task_pt_regs(tsk)->ARM_sp #ifdef CONFIG_SMP #define __ALT_SMP_ASM(smp, up) \ "9998: " smp "\n" \ " .pushsection \".alt.smp.init\", \"a\"\n" \ " .long 9998b\n" \ " " up "\n" \ " .popsection\n" #else #define __ALT_SMP_ASM(smp, up) up #endif /* * Prefetching support - only ARMv5. */ #if __LINUX_ARM_ARCH__ >= 5 #define ARCH_HAS_PREFETCH
static inline void prefetch(const void *ptr) { __asm__ __volatile__( "pld\t%a0" :: "p" (ptr)); }Contributors
| Person | Tokens | Prop | Commits | CommitProp | |
| nicolas pitre | nicolas pitre | 10 | 66.67% | 1 | 33.33% |
| russell king | russell king | 4 | 26.67% | 1 | 33.33% |
| will deacon | will deacon | 1 | 6.67% | 1 | 33.33% |
| Total | 15 | 100.00% | 3 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp | |
| will deacon | will deacon | 11 | 73.33% | 1 | 50.00% |
| russell king | russell king | 4 | 26.67% | 1 | 50.00% |
| Total | 15 | 100.00% | 2 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp | |
| will deacon | will deacon | 89 | 30.90% | 7 | 21.21% |
| pre-git | pre-git | 77 | 26.74% | 10 | 30.30% |
| russell king | russell king | 58 | 20.14% | 6 | 18.18% |
| hyok s. choi | hyok s. choi | 22 | 7.64% | 1 | 3.03% |
| david howells | david howells | 12 | 4.17% | 1 | 3.03% |
| nicolas pitre | nicolas pitre | 10 | 3.47% | 1 | 3.03% |
| al viro | al viro | 6 | 2.08% | 2 | 6.06% |
| davidlohr bueso | davidlohr bueso | 5 | 1.74% | 1 | 3.03% |
| linus torvalds | linus torvalds | 4 | 1.39% | 1 | 3.03% |
| rob herring | rob herring | 3 | 1.04% | 1 | 3.03% |
| anton blanchard | anton blanchard | 1 | 0.35% | 1 | 3.03% |
| lennert buytenhek | lennert buytenhek | 1 | 0.35% | 1 | 3.03% |
| Total | 288 | 100.00% | 33 | 100.00% |