diff options
| author | Benjamin Gray <bgray@linux.ibm.com> | 2022-11-09 15:51:10 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-11-30 21:46:49 +1100 |
| commit | 274d842fa1efd9449e62222c8896e0be11621f1f (patch) | |
| tree | e561c879fbb8aec516100c49d8a3127bfae68a26 /arch/powerpc/include/asm/book3s | |
| parent | d34471c9bd5d47ab148dd68817631a4238f755c4 (diff) | |
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/book3s')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/32/tlbflush.h | 9 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/tlbflush.h | 7 |
2 files changed, 16 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/32/tlbflush.h b/arch/powerpc/include/asm/book3s/32/tlbflush.h index ba1743c52b56..4be572908124 100644 --- a/arch/powerpc/include/asm/book3s/32/tlbflush.h +++ b/arch/powerpc/include/asm/book3s/32/tlbflush.h @@ -2,6 +2,8 @@ #ifndef _ASM_POWERPC_BOOK3S_32_TLBFLUSH_H #define _ASM_POWERPC_BOOK3S_32_TLBFLUSH_H +#include <linux/build_bug.h> + #define MMU_NO_CONTEXT (0) /* * TLB flushing for "classic" hash-MMU 32-bit CPUs, 6xx, 7xx, 7xxx @@ -74,6 +76,13 @@ static inline void local_flush_tlb_page(struct vm_area_struct *vma, { flush_tlb_page(vma, vmaddr); } + +static inline void local_flush_tlb_page_psize(struct mm_struct *mm, + unsigned long vmaddr, int psize) +{ + BUILD_BUG(); +} + static inline void local_flush_tlb_mm(struct mm_struct *mm) { flush_tlb_mm(mm); diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush.h b/arch/powerpc/include/asm/book3s/64/tlbflush.h index c56a0aee8124..dd39313242b4 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush.h @@ -86,6 +86,13 @@ static inline void local_flush_tlb_page(struct vm_area_struct *vma, radix__local_flush_tlb_page(vma, vmaddr); } +static inline void local_flush_tlb_page_psize(struct mm_struct *mm, + unsigned long vmaddr, int psize) +{ + if (radix_enabled()) + radix__local_flush_tlb_page_psize(mm, vmaddr, psize); +} + static inline void tlb_flush(struct mmu_gather *tlb) { if (radix_enabled()) |