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| author |   Mikael Starvik <mikael.starvik@axis.com> | 2005-07-27 11:44:42 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-27 16:26:01 -0700 |
| commit | 8d20a541b089ecb67a88a673548161b686ed7b85 (patch) | |
| tree | 53bac804d538068c80684becb76cd76937956502 /arch/cris/arch-v10/mm/fault.c | |
| parent | [PATCH] CRIS update: profiler (diff) | |
| download | linux-dev-8d20a541b089ecb67a88a673548161b686ed7b85.tar.xz linux-dev-8d20a541b089ecb67a88a673548161b686ed7b85.zip | |
[PATCH] CRIS update: SMP
Patches to support SMP.
* Each CPU has its own current_pgd.
* flush_tlb_range is implemented as flush_tlb_mm.
* Atomic operations implemented with spinlocks.
* Semaphores implemented with spinlocks.
Signed-off-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/cris/arch-v10/mm/fault.c')
| -rw-r--r-- | arch/cris/arch-v10/mm/fault.c | 26 |
1 files changed, 2 insertions, 24 deletions
diff --git a/arch/cris/arch-v10/mm/fault.c b/arch/cris/arch-v10/mm/fault.c index 6805cdb25a53..fe2615022b97 100644 --- a/arch/cris/arch-v10/mm/fault.c +++ b/arch/cris/arch-v10/mm/fault.c @@ -14,6 +14,7 @@ #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/arch/svinto.h> +#include <asm/mmu_context.h> /* debug of low-level TLB reload */ #undef DEBUG @@ -24,8 +25,6 @@ #define D(x) #endif -extern volatile pgd_t *current_pgd; - extern const struct exception_table_entry *search_exception_tables(unsigned long addr); @@ -46,7 +45,7 @@ handle_mmu_bus_fault(struct pt_regs *regs) int page_id; int acc, inv; #endif - pgd_t* pgd = (pgd_t*)current_pgd; + pgd_t* pgd = (pgd_t*)per_cpu(current_pgd, smp_processor_id()); pmd_t *pmd; pte_t pte; int miss, we, writeac; @@ -94,24 +93,3 @@ handle_mmu_bus_fault(struct pt_regs *regs) *R_TLB_LO = pte_val(pte); local_irq_restore(flags); } - -/* Called from arch/cris/mm/fault.c to find fixup code. */ -int -find_fixup_code(struct pt_regs *regs) -{ - const struct exception_table_entry *fixup; - - if ((fixup = search_exception_tables(regs->irp)) != 0) { - /* Adjust the instruction pointer in the stackframe. */ - regs->irp = fixup->fixup; - - /* - * Don't return by restoring the CPU state, so switch - * frame-type. - */ - regs->frametype = CRIS_FRAME_NORMAL; - return 1; - } - - return 0; -} |