diff options
Diffstat (limited to 'arch/x86/include/asm/tlbflush.h')
-rw-r--r-- | arch/x86/include/asm/tlbflush.h | 41 |
1 files changed, 1 insertions, 40 deletions
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h index 14c5b98aaa51..bbb94f05e1f3 100644 --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -143,6 +143,7 @@ static inline unsigned long build_cr3_noflush(pgd_t *pgd, u16 asid) void flush_tlb_local(void); void flush_tlb_global(void); void flush_tlb_one_user(unsigned long addr); +void flush_tlb_one_kernel(unsigned long addr); #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> @@ -318,14 +319,6 @@ static inline void cr4_clear_bits(unsigned long mask) } /* - * Mark all other ASIDs as invalid, preserves the current. - */ -static inline void invalidate_other_asid(void) -{ - this_cpu_write(cpu_tlbstate.invalidate_other, true); -} - -/* * Save some of cr4 feature set we're using (e.g. Pentium 4MB * enable and PPro Global page enable), so that any CPU's that boot * up after us can get the correct flags. This should only be used @@ -365,38 +358,6 @@ static inline void __flush_tlb_all(void) } } -/* - * flush one page in the kernel mapping - */ -static inline void __flush_tlb_one_kernel(unsigned long addr) -{ - count_vm_tlb_event(NR_TLB_LOCAL_FLUSH_ONE); - - /* - * If PTI is off, then __flush_tlb_one_user() is just INVLPG or its - * paravirt equivalent. Even with PCID, this is sufficient: we only - * use PCID if we also use global PTEs for the kernel mapping, and - * INVLPG flushes global translations across all address spaces. - * - * If PTI is on, then the kernel is mapped with non-global PTEs, and - * __flush_tlb_one_user() will flush the given address for the current - * kernel address space and for its usermode counterpart, but it does - * not flush it for other address spaces. - */ - flush_tlb_one_user(addr); - - if (!static_cpu_has(X86_FEATURE_PTI)) - return; - - /* - * See above. We need to propagate the flush to all other address - * spaces. In principle, we only need to propagate it to kernelmode - * address spaces, but the extra bookkeeping we would need is not - * worth it. - */ - invalidate_other_asid(); -} - #define TLB_FLUSH_ALL -1UL /* |