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| author | Ingo Molnar <mingo@kernel.org> | 2017-03-23 08:28:19 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-03-23 08:28:19 +0100 |
| commit | 1f9ca184049724209cddbddac593d13eb87e48c0 (patch) | |
| tree | a96bfd7bad95b717d2cabfd1e00e8803e998c23d /arch/x86/include/asm/tlbflush.h | |
| parent | x86/xen/gdt: Use X86_FEATURE_XENPV instead of globals for the GDT fixup (diff) | |
| parent | um/arch_prctl: Fix fallout from x86 arch_prctl() rework (diff) | |
| download | linux-1f9ca184049724209cddbddac593d13eb87e48c0.tar.xz linux-1f9ca184049724209cddbddac593d13eb87e48c0.zip | |
Merge branch 'x86/process' into x86/mm, to create new base for further patches
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/tlbflush.h')
| -rw-r--r-- | arch/x86/include/asm/tlbflush.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h index fc5abff9b7fd..75d002bdb3f3 100644 --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -110,6 +110,16 @@ static inline void cr4_clear_bits(unsigned long mask) } } +static inline void cr4_toggle_bits(unsigned long mask) +{ + unsigned long cr4; + + cr4 = this_cpu_read(cpu_tlbstate.cr4); + cr4 ^= mask; + this_cpu_write(cpu_tlbstate.cr4, cr4); + __write_cr4(cr4); +} + /* Read the CR4 shadow. */ static inline unsigned long cr4_read_shadow(void) { |