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| author | Brian Gerst <brgerst@gmail.com> | 2009-01-19 00:38:57 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-01-19 00:38:57 +0900 |
| commit | 9eb912d1aa6b8106e06a73ea6702ec3dab0d6a1a (patch) | |
| tree | ed563ea82e5190894806c62d87a769400b08375a /arch/x86/kernel/tlb_64.c | |
| parent | 1b437c8c73a36daa471dd54a63c426d72af5723d (diff) | |
| download | op-kernel-dev-9eb912d1aa6b8106e06a73ea6702ec3dab0d6a1a.zip op-kernel-dev-9eb912d1aa6b8106e06a73ea6702ec3dab0d6a1a.tar.gz | |
x86-64: Move TLB state from PDA to per-cpu and consolidate with 32-bit.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/kernel/tlb_64.c')
| -rw-r--r-- | arch/x86/kernel/tlb_64.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/x86/kernel/tlb_64.c b/arch/x86/kernel/tlb_64.c index 7f4141d..e64a32c 100644 --- a/arch/x86/kernel/tlb_64.c +++ b/arch/x86/kernel/tlb_64.c @@ -18,6 +18,9 @@ #include <asm/uv/uv_hub.h> #include <asm/uv/uv_bau.h> +DEFINE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate) + = { &init_mm, 0, }; + #include <mach_ipi.h> /* * Smarter SMP flushing macros. @@ -62,9 +65,9 @@ static DEFINE_PER_CPU(union smp_flush_state, flush_state); */ void leave_mm(int cpu) { - if (read_pda(mmu_state) == TLBSTATE_OK) + if (percpu_read(cpu_tlbstate.state) == TLBSTATE_OK) BUG(); - cpu_clear(cpu, read_pda(active_mm)->cpu_vm_mask); + cpu_clear(cpu, percpu_read(cpu_tlbstate.active_mm)->cpu_vm_mask); load_cr3(swapper_pg_dir); } EXPORT_SYMBOL_GPL(leave_mm); @@ -142,8 +145,8 @@ asmlinkage void smp_invalidate_interrupt(struct pt_regs *regs) * BUG(); */ - if (f->flush_mm == read_pda(active_mm)) { - if (read_pda(mmu_state) == TLBSTATE_OK) { + if (f->flush_mm == percpu_read(cpu_tlbstate.active_mm)) { + if (percpu_read(cpu_tlbstate.state) == TLBSTATE_OK) { if (f->flush_va == TLB_FLUSH_ALL) local_flush_tlb(); else @@ -281,7 +284,7 @@ static void do_flush_tlb_all(void *info) unsigned long cpu = smp_processor_id(); __flush_tlb_all(); - if (read_pda(mmu_state) == TLBSTATE_LAZY) + if (percpu_read(cpu_tlbstate.state) == TLBSTATE_LAZY) leave_mm(cpu); } |
