diff options
| author | Benjamin Gray <bgray@linux.ibm.com> | 2022-11-09 07:51:10 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-11-30 13:46:49 +0300 |
| commit | 274d842fa1efd9449e62222c8896e0be11621f1f (patch) | |
| tree | e561c879fbb8aec516100c49d8a3127bfae68a26 /arch/powerpc/include/asm/nohash | |
| parent | d34471c9bd5d47ab148dd68817631a4238f755c4 (diff) | |
| download | linux-274d842fa1efd9449e62222c8896e0be11621f1f.tar.xz | |
powerpc/tlb: Add local flush for page given mm_struct and psize
Adds a local TLB flush operation that works given an mm_struct, VA to
flush, and page size representation. Most implementations mirror the
surrounding code. The book3s/32/tlbflush.h implementation is left as
a BUILD_BUG because it is more complicated and not required for
anything as yet.
This removes the need to create a vm_area_struct, which the temporary
patching mm work does not need.
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221109045112.187069-8-bgray@linux.ibm.com
Diffstat (limited to 'arch/powerpc/include/asm/nohash')
| -rw-r--r-- | arch/powerpc/include/asm/nohash/tlbflush.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/nohash/tlbflush.h b/arch/powerpc/include/asm/nohash/tlbflush.h index bdaf34ad41ea..9a2cf83ea4f1 100644 --- a/arch/powerpc/include/asm/nohash/tlbflush.h +++ b/arch/powerpc/include/asm/nohash/tlbflush.h @@ -45,6 +45,12 @@ static inline void local_flush_tlb_page(struct vm_area_struct *vma, unsigned lon asm volatile ("tlbie %0; sync" : : "r" (vmaddr) : "memory"); } +static inline void local_flush_tlb_page_psize(struct mm_struct *mm, + unsigned long vmaddr, int psize) +{ + asm volatile ("tlbie %0; sync" : : "r" (vmaddr) : "memory"); +} + static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end) { start &= PAGE_MASK; @@ -58,6 +64,7 @@ static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); extern void local_flush_tlb_mm(struct mm_struct *mm); extern void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr); +void local_flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmaddr, int psize); extern void __local_flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr, int tsize, int ind); |