diff options
Diffstat (limited to 'arch/arm/include/asm/cacheflush.h')
| -rw-r--r-- | arch/arm/include/asm/cacheflush.h | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 5e56288e343b..a094f964c869 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -445,15 +445,10 @@ static inline void __sync_cache_range_r(volatile void *p, size_t size) * however some exceptions may exist. Caveat emptor. * * - The clobber list is dictated by the call to v7_flush_dcache_*. - * fp is preserved to the stack explicitly prior disabling the cache - * since adding it to the clobber list is incompatible with having - * CONFIG_FRAME_POINTER=y. ip is saved as well if ever r12-clobbering - * trampoline are inserted by the linker and to keep sp 64-bit aligned. */ #define v7_exit_coherency_flush(level) \ asm volatile( \ ".arch armv7-a \n\t" \ - "stmfd sp!, {fp, ip} \n\t" \ "mrc p15, 0, r0, c1, c0, 0 @ get SCTLR \n\t" \ "bic r0, r0, #"__stringify(CR_C)" \n\t" \ "mcr p15, 0, r0, c1, c0, 0 @ set SCTLR \n\t" \ @@ -463,10 +458,9 @@ static inline void __sync_cache_range_r(volatile void *p, size_t size) "bic r0, r0, #(1 << 6) @ disable local coherency \n\t" \ "mcr p15, 0, r0, c1, c0, 1 @ set ACTLR \n\t" \ "isb \n\t" \ - "dsb \n\t" \ - "ldmfd sp!, {fp, ip}" \ - : : : "r0","r1","r2","r3","r4","r5","r6","r7", \ - "r9","r10","lr","memory" ) + "dsb" \ + : : : "r0","r1","r2","r3","r4","r5","r6", \ + "r9","r10","ip","lr","memory" ) void flush_uprobe_xol_access(struct page *page, unsigned long uaddr, void *kaddr, unsigned long len); |