diff options
Diffstat (limited to 'arch/powerpc/kernel/vdso32/cacheflush.S')
| -rw-r--r-- | arch/powerpc/kernel/vdso32/cacheflush.S | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/arch/powerpc/kernel/vdso32/cacheflush.S b/arch/powerpc/kernel/vdso32/cacheflush.S deleted file mode 100644 index 3440ddf21c8b..000000000000 --- a/arch/powerpc/kernel/vdso32/cacheflush.S +++ /dev/null @@ -1,103 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * vDSO provided cache flush routines - * - * Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org), - * IBM Corp. - */ -#include <asm/processor.h> -#include <asm/ppc_asm.h> -#include <asm/vdso.h> -#include <asm/vdso_datapage.h> -#include <asm/asm-offsets.h> -#include <asm/cache.h> - - .text - -/* - * Default "generic" version of __kernel_sync_dicache. - * - * void __kernel_sync_dicache(unsigned long start, unsigned long end) - * - * Flushes the data cache & invalidate the instruction cache for the - * provided range [start, end[ - */ -V_FUNCTION_BEGIN(__kernel_sync_dicache) - .cfi_startproc -#ifdef CONFIG_PPC64 - mflr r12 - .cfi_register lr,r12 - get_datapage r10, r0 - mtlr r12 -#endif - -#ifdef CONFIG_PPC64 - lwz r7,CFG_DCACHE_BLOCKSZ(r10) - addi r5,r7,-1 -#else - li r5, L1_CACHE_BYTES - 1 -#endif - andc r6,r3,r5 /* round low to line bdy */ - subf r8,r6,r4 /* compute length */ - add r8,r8,r5 /* ensure we get enough */ -#ifdef CONFIG_PPC64 - lwz r9,CFG_DCACHE_LOGBLOCKSZ(r10) - srw. r8,r8,r9 /* compute line count */ -#else - srwi. r8, r8, L1_CACHE_SHIFT - mr r7, r6 -#endif - crclr cr0*4+so - beqlr /* nothing to do? */ - mtctr r8 -1: dcbst 0,r6 -#ifdef CONFIG_PPC64 - add r6,r6,r7 -#else - addi r6, r6, L1_CACHE_BYTES -#endif - bdnz 1b - sync - -/* Now invalidate the instruction cache */ - -#ifdef CONFIG_PPC64 - lwz r7,CFG_ICACHE_BLOCKSZ(r10) - addi r5,r7,-1 - andc r6,r3,r5 /* round low to line bdy */ - subf r8,r6,r4 /* compute length */ - add r8,r8,r5 - lwz r9,CFG_ICACHE_LOGBLOCKSZ(r10) - srw. r8,r8,r9 /* compute line count */ - crclr cr0*4+so - beqlr /* nothing to do? */ -#endif - mtctr r8 -#ifdef CONFIG_PPC64 -2: icbi 0,r6 - add r6,r6,r7 -#else -2: icbi 0, r7 - addi r7, r7, L1_CACHE_BYTES -#endif - bdnz 2b - isync - li r3,0 - blr - .cfi_endproc -V_FUNCTION_END(__kernel_sync_dicache) - - -/* - * POWER5 version of __kernel_sync_dicache - */ -V_FUNCTION_BEGIN(__kernel_sync_dicache_p5) - .cfi_startproc - crclr cr0*4+so - sync - isync - li r3,0 - blr - .cfi_endproc -V_FUNCTION_END(__kernel_sync_dicache_p5) - |