diff options
Diffstat (limited to 'include/asm-alpha')
| -rw-r--r-- | include/asm-alpha/mmu_context.h | 6 | ||||
| -rw-r--r-- | include/asm-alpha/processor.h | 13 | ||||
| -rw-r--r-- | include/asm-alpha/ptrace.h | 6 | ||||
| -rw-r--r-- | include/asm-alpha/system.h | 18 | ||||
| -rw-r--r-- | include/asm-alpha/thread_info.h | 2 |
5 files changed, 22 insertions, 23 deletions
diff --git a/include/asm-alpha/mmu_context.h b/include/asm-alpha/mmu_context.h index a714d0cdc20..6f92482cc96 100644 --- a/include/asm-alpha/mmu_context.h +++ b/include/asm-alpha/mmu_context.h @@ -156,7 +156,7 @@ ev5_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm, /* Always update the PCB ASN. Another thread may have allocated a new mm->context (via flush_tlb_mm) without the ASN serial number wrapping. We have no way to detect when this is needed. */ - next->thread_info->pcb.asn = mmc & HARDWARE_ASN_MASK; + task_thread_info(next)->pcb.asn = mmc & HARDWARE_ASN_MASK; } __EXTERN_INLINE void @@ -235,7 +235,7 @@ init_new_context(struct task_struct *tsk, struct mm_struct *mm) if (cpu_online(i)) mm->context[i] = 0; if (tsk != current) - tsk->thread_info->pcb.ptbr + task_thread_info(tsk)->pcb.ptbr = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT; return 0; } @@ -249,7 +249,7 @@ destroy_context(struct mm_struct *mm) static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) { - tsk->thread_info->pcb.ptbr + task_thread_info(tsk)->pcb.ptbr = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT; } diff --git a/include/asm-alpha/processor.h b/include/asm-alpha/processor.h index bb1a7a3abb8..425b7b6d28c 100644 --- a/include/asm-alpha/processor.h +++ b/include/asm-alpha/processor.h @@ -52,19 +52,10 @@ extern long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); unsigned long get_wchan(struct task_struct *p); -/* See arch/alpha/kernel/ptrace.c for details. */ -#define PT_REG(reg) \ - (PAGE_SIZE*2 - sizeof(struct pt_regs) + offsetof(struct pt_regs, reg)) - -#define SW_REG(reg) \ - (PAGE_SIZE*2 - sizeof(struct pt_regs) - sizeof(struct switch_stack) \ - + offsetof(struct switch_stack, reg)) - -#define KSTK_EIP(tsk) \ - (*(unsigned long *)(PT_REG(pc) + (unsigned long) ((tsk)->thread_info))) +#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc) #define KSTK_ESP(tsk) \ - ((tsk) == current ? rdusp() : (tsk)->thread_info->pcb.usp) + ((tsk) == current ? rdusp() : task_thread_info(tsk)->pcb.usp) #define cpu_relax() barrier() diff --git a/include/asm-alpha/ptrace.h b/include/asm-alpha/ptrace.h index 072375c135b..9933b8b3612 100644 --- a/include/asm-alpha/ptrace.h +++ b/include/asm-alpha/ptrace.h @@ -75,10 +75,10 @@ struct switch_stack { #define profile_pc(regs) instruction_pointer(regs) extern void show_regs(struct pt_regs *); -#define alpha_task_regs(task) \ - ((struct pt_regs *) ((long) (task)->thread_info + 2*PAGE_SIZE) - 1) +#define task_pt_regs(task) \ + ((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1) -#define force_successful_syscall_return() (alpha_task_regs(current)->r0 = 0) +#define force_successful_syscall_return() (task_pt_regs(current)->r0 = 0) #endif diff --git a/include/asm-alpha/system.h b/include/asm-alpha/system.h index 050e86d1289..cc9c7e8cced 100644 --- a/include/asm-alpha/system.h +++ b/include/asm-alpha/system.h @@ -131,15 +131,25 @@ struct el_common_EV6_mcheck { extern void halt(void) __attribute__((noreturn)); #define __halt() __asm__ __volatile__ ("call_pal %0 #halt" : : "i" (PAL_halt)) -#define switch_to(P,N,L) \ - do { \ - (L) = alpha_switch_to(virt_to_phys(&(N)->thread_info->pcb), (P)); \ - check_mmu_context(); \ +#define switch_to(P,N,L) \ + do { \ + (L) = alpha_switch_to(virt_to_phys(&task_thread_info(N)->pcb), (P)); \ + check_mmu_context(); \ } while (0) struct task_struct; extern struct task_struct *alpha_switch_to(unsigned long, struct task_struct*); +/* + * On SMP systems, when the scheduler does migration-cost autodetection, + * it needs a way to flush as much of the CPU's caches as possible. + * + * TODO: fill this in! + */ +static inline void sched_cacheflush(void) +{ +} + #define imb() \ __asm__ __volatile__ ("call_pal %0 #imb" : : "i" (PAL_imb) : "memory") diff --git a/include/asm-alpha/thread_info.h b/include/asm-alpha/thread_info.h index d51491ed00b..69ffd93f8e2 100644 --- a/include/asm-alpha/thread_info.h +++ b/include/asm-alpha/thread_info.h @@ -54,8 +54,6 @@ register struct thread_info *__current_thread_info __asm__("$8"); #define alloc_thread_info(tsk) \ ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) #define free_thread_info(ti) free_pages((unsigned long) (ti), 1) -#define get_thread_info(ti) get_task_struct((ti)->task) -#define put_thread_info(ti) put_task_struct((ti)->task) #endif /* __ASSEMBLY__ */ |