diff options
Diffstat (limited to 'arch/powerpc/kernel/misc_64.S')
| -rw-r--r-- | arch/powerpc/kernel/misc_64.S | 27 |
1 files changed, 2 insertions, 25 deletions
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index 262ba9481781..a4fd536efb44 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -121,31 +121,8 @@ EXPORT_SYMBOL(flush_icache_range) * * flush all bytes from start to stop-1 inclusive */ -_GLOBAL_TOC(flush_dcache_range) -/* - * Flush the data cache to memory - * - * Different systems have different cache line sizes - */ - ld r10,PPC64_CACHES@toc(r2) - lwz r7,DCACHEL1BLOCKSIZE(r10) /* Get dcache block size */ - addi r5,r7,-1 - andc r6,r3,r5 /* round low to line bdy */ - subf r8,r6,r4 /* compute length */ - add r8,r8,r5 /* ensure we get enough */ - lwz r9,DCACHEL1LOGBLOCKSIZE(r10) /* Get log-2 of dcache block size */ - srw. r8,r8,r9 /* compute line count */ - beqlr /* nothing to do? */ - mtctr r8 -0: dcbst 0,r6 - add r6,r6,r7 - bdnz 0b - sync - blr -EXPORT_SYMBOL(flush_dcache_range) - -_GLOBAL(flush_inval_dcache_range) +_GLOBAL_TOC(flush_dcache_range) ld r10,PPC64_CACHES@toc(r2) lwz r7,DCACHEL1BLOCKSIZE(r10) /* Get dcache block size */ addi r5,r7,-1 @@ -164,7 +141,7 @@ _GLOBAL(flush_inval_dcache_range) sync isync blr - +EXPORT_SYMBOL(flush_dcache_range) /* * Flush a particular page from the data cache to RAM. |