diff options
| -rw-r--r-- | arch/arm64/include/asm/assembler.h | 30 | ||||
| -rw-r--r-- | arch/arm64/mm/cache.S | 3 |
2 files changed, 21 insertions, 12 deletions
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index 66aea4aa455d..02d73d83f0de 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -373,27 +373,33 @@ alternative_endif * size: size of the region * Corrupts: kaddr, size, tmp1, tmp2 */ + .macro __dcache_op_workaround_clean_cache, op, kaddr +alternative_if_not ARM64_WORKAROUND_CLEAN_CACHE + dc \op, \kaddr +alternative_else + dc civac, \kaddr +alternative_endif + .endm + .macro dcache_by_line_op op, domain, kaddr, size, tmp1, tmp2 dcache_line_size \tmp1, \tmp2 add \size, \kaddr, \size sub \tmp2, \tmp1, #1 bic \kaddr, \kaddr, \tmp2 9998: - .if (\op == cvau || \op == cvac) -alternative_if_not ARM64_WORKAROUND_CLEAN_CACHE - dc \op, \kaddr -alternative_else - dc civac, \kaddr -alternative_endif - .elseif (\op == cvap) -alternative_if ARM64_HAS_DCPOP - sys 3, c7, c12, 1, \kaddr // dc cvap -alternative_else - dc cvac, \kaddr -alternative_endif + .ifc \op, cvau + __dcache_op_workaround_clean_cache \op, \kaddr + .else + .ifc \op, cvac + __dcache_op_workaround_clean_cache \op, \kaddr + .else + .ifc \op, cvap + sys 3, c7, c12, 1, \kaddr // dc cvap .else dc \op, \kaddr .endif + .endif + .endif add \kaddr, \kaddr, \tmp1 cmp \kaddr, \size b.lo 9998b diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S index 91464e7f77cc..c1e8f3c6ffd5 100644 --- a/arch/arm64/mm/cache.S +++ b/arch/arm64/mm/cache.S @@ -181,6 +181,9 @@ ENDPROC(__dma_clean_area) * - size - size in question */ ENTRY(__clean_dcache_area_pop) + alternative_if_not ARM64_HAS_DCPOP + b __clean_dcache_area_poc + alternative_else_nop_endif dcache_by_line_op cvap, sy, x0, x1, x2, x3 ret ENDPIPROC(__clean_dcache_area_pop) |