diff options
| author | Guo Ren <guoren@linux.alibaba.com> | 2021-06-06 18:20:50 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2021-07-01 06:55:39 +0300 |
| commit | 3f1e782998cdf6dac037588b99b10b787b00810a (patch) | |
| tree | c8b733eb062e7763841a9411b8c4acd9506f0fe6 /arch/riscv/include | |
| parent | 70c7605c08c5979e5148085903bfed5feac09406 (diff) | |
| download | linux-3f1e782998cdf6dac037588b99b10b787b00810a.tar.xz | |
riscv: add ASID-based tlbflushing methods
Implement optimized version of the tlb flushing routines for systems
using ASIDs. These are behind the use_asid_allocator static branch to
not affect existing systems not using ASIDs.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
[hch: rebased on top of previous cleanups, use the same algorithm as
the non-ASID based code for local vs global flushes, keep functions
as local as possible]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/mmu_context.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/mmu_context.h b/arch/riscv/include/asm/mmu_context.h index b0659413a080..7030837adc1a 100644 --- a/arch/riscv/include/asm/mmu_context.h +++ b/arch/riscv/include/asm/mmu_context.h @@ -33,6 +33,8 @@ static inline int init_new_context(struct task_struct *tsk, return 0; } +DECLARE_STATIC_KEY_FALSE(use_asid_allocator); + #include <asm-generic/mmu_context.h> #endif /* _ASM_RISCV_MMU_CONTEXT_H */ |