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author | rogersb11 <brettrogers11@gmail.com> | 2015-11-10 11:19:31 -0600 |
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committer | rogersb11 <brettrogers11@gmail.com> | 2015-11-10 14:01:25 -0500 |
commit | b4d16f70c34ecb908c8a61e58ea51fecdd4a4b10 (patch) | |
tree | 973e9aeb97bb13497d17a43e6f3c070381bc5b87 /arch/sparc/mm/tlb.c | |
parent | d177fbc2f0c263b06c18bda2eb46200a31bcbebd (diff) | |
parent | 5dba9ddd98cbc7ad319d687887981a0ea0062c75 (diff) | |
download | kernel_samsung_smdk4412-b4d16f70c34ecb908c8a61e58ea51fecdd4a4b10.tar.gz kernel_samsung_smdk4412-b4d16f70c34ecb908c8a61e58ea51fecdd4a4b10.tar.bz2 kernel_samsung_smdk4412-b4d16f70c34ecb908c8a61e58ea51fecdd4a4b10.zip |
Merge remote-tracking branch 'korg/linux-3.0.y' into cm-13.0
Conflicts:
crypto/algapi.c
drivers/gpu/drm/i915/i915_debugfs.c
drivers/gpu/drm/i915/intel_display.c
drivers/video/fbmem.c
include/linux/nls.h
kernel/cgroup.c
kernel/signal.c
kernel/timeconst.pl
net/ipv4/ping.c
Change-Id: I1f532925d1743df74d66bcdd6fc92f05c72ee0dd
Diffstat (limited to 'arch/sparc/mm/tlb.c')
-rw-r--r-- | arch/sparc/mm/tlb.c | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c index b1f279cd00b..072f5530373 100644 --- a/arch/sparc/mm/tlb.c +++ b/arch/sparc/mm/tlb.c @@ -24,11 +24,17 @@ static DEFINE_PER_CPU(struct tlb_batch, tlb_batch); void flush_tlb_pending(void) { struct tlb_batch *tb = &get_cpu_var(tlb_batch); + struct mm_struct *mm = tb->mm; - if (tb->tlb_nr) { - flush_tsb_user(tb); + if (!tb->tlb_nr) + goto out; - if (CTX_VALID(tb->mm->context)) { + flush_tsb_user(tb); + + if (CTX_VALID(mm->context)) { + if (tb->tlb_nr == 1) { + global_flush_tlb_page(mm, tb->vaddrs[0]); + } else { #ifdef CONFIG_SMP smp_flush_tlb_pending(tb->mm, tb->tlb_nr, &tb->vaddrs[0]); @@ -37,12 +43,30 @@ void flush_tlb_pending(void) tb->tlb_nr, &tb->vaddrs[0]); #endif } - tb->tlb_nr = 0; } + tb->tlb_nr = 0; + +out: put_cpu_var(tlb_batch); } +void arch_enter_lazy_mmu_mode(void) +{ + struct tlb_batch *tb = &__get_cpu_var(tlb_batch); + + tb->active = 1; +} + +void arch_leave_lazy_mmu_mode(void) +{ + struct tlb_batch *tb = &__get_cpu_var(tlb_batch); + + if (tb->tlb_nr) + flush_tlb_pending(); + tb->active = 0; +} + void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr, pte_t *ptep, pte_t orig, int fullmm) { @@ -90,6 +114,12 @@ no_cache_flush: nr = 0; } + if (!tb->active) { + flush_tsb_user_page(mm, vaddr); + global_flush_tlb_page(mm, vaddr); + goto out; + } + if (nr == 0) tb->mm = mm; @@ -98,5 +128,6 @@ no_cache_flush: if (nr >= TLB_BATCH_NR) flush_tlb_pending(); +out: put_cpu_var(tlb_batch); } |