diff options
| author | James Hogan <james.hogan@imgtec.com> | 2015-12-17 00:49:37 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-01-24 03:30:41 +0100 |
| commit | f4956f620d065d8fa4d7a890cad548549e0b91ea (patch) | |
| tree | 17a434b48542e2f4f2faf6f3c9cf6d8e9b775161 | |
| parent | MIPS: Break down cacheops.h definitions (diff) | |
| download | linux-f4956f620d065d8fa4d7a890cad548549e0b91ea.tar.xz linux-f4956f620d065d8fa4d7a890cad548549e0b91ea.zip | |
MIPS: KVM: Use cacheops.h definitions
Drop the custom cache operation code definitions used by KVM for
emulating guest CACHE instructions, and switch to use the existing
definitions in <asm/cacheops.h>.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Gleb Natapov <gleb@kernel.org>
Cc: kvm@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/11893/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/kvm/emulate.c | 30 |
1 files changed, 8 insertions, 22 deletions
diff --git a/arch/mips/kvm/emulate.c b/arch/mips/kvm/emulate.c index 6ff1dcfc9ef1..0eb65668d2ab 100644 --- a/arch/mips/kvm/emulate.c +++ b/arch/mips/kvm/emulate.c @@ -20,6 +20,7 @@ #include <linux/random.h> #include <asm/page.h> #include <asm/cacheflush.h> +#include <asm/cacheops.h> #include <asm/cpu-info.h> #include <asm/mmu_context.h> #include <asm/tlbflush.h> @@ -1544,19 +1545,6 @@ int kvm_mips_sync_icache(unsigned long va, struct kvm_vcpu *vcpu) return 0; } -#define MIPS_CACHE_OP_INDEX_INV 0x0 -#define MIPS_CACHE_OP_INDEX_LD_TAG 0x1 -#define MIPS_CACHE_OP_INDEX_ST_TAG 0x2 -#define MIPS_CACHE_OP_IMP 0x3 -#define MIPS_CACHE_OP_HIT_INV 0x4 -#define MIPS_CACHE_OP_FILL_WB_INV 0x5 -#define MIPS_CACHE_OP_HIT_HB 0x6 -#define MIPS_CACHE_OP_FETCH_LOCK 0x7 - -#define MIPS_CACHE_ICACHE 0x0 -#define MIPS_CACHE_DCACHE 0x1 -#define MIPS_CACHE_SEC 0x3 - enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, uint32_t cause, struct kvm_run *run, @@ -1581,8 +1569,8 @@ enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, base = (inst >> 21) & 0x1f; op_inst = (inst >> 16) & 0x1f; offset = (int16_t)inst; - cache = (inst >> 16) & 0x3; - op = (inst >> 18) & 0x7; + cache = op_inst & CacheOp_Cache; + op = op_inst & CacheOp_Op; va = arch->gprs[base] + offset; @@ -1594,14 +1582,14 @@ enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, * invalidate the caches entirely by stepping through all the * ways/indexes */ - if (op == MIPS_CACHE_OP_INDEX_INV) { + if (op == Index_Writeback_Inv) { kvm_debug("@ %#lx/%#lx CACHE (cache: %#x, op: %#x, base[%d]: %#lx, offset: %#x\n", vcpu->arch.pc, vcpu->arch.gprs[31], cache, op, base, arch->gprs[base], offset); - if (cache == MIPS_CACHE_DCACHE) + if (cache == Cache_D) r4k_blast_dcache(); - else if (cache == MIPS_CACHE_ICACHE) + else if (cache == Cache_I) r4k_blast_icache(); else { kvm_err("%s: unsupported CACHE INDEX operation\n", @@ -1674,9 +1662,7 @@ enum emulation_result kvm_mips_emulate_cache(uint32_t inst, uint32_t *opc, skip_fault: /* XXXKYMA: Only a subset of cache ops are supported, used by Linux */ - if (cache == MIPS_CACHE_DCACHE - && (op == MIPS_CACHE_OP_FILL_WB_INV - || op == MIPS_CACHE_OP_HIT_INV)) { + if (op_inst == Hit_Writeback_Inv_D || op_inst == Hit_Invalidate_D) { flush_dcache_line(va); #ifdef CONFIG_KVM_MIPS_DYN_TRANS @@ -1686,7 +1672,7 @@ skip_fault: */ kvm_mips_trans_cache_va(inst, opc, vcpu); #endif - } else if (op == MIPS_CACHE_OP_HIT_INV && cache == MIPS_CACHE_ICACHE) { + } else if (op_inst == Hit_Invalidate_I) { flush_dcache_line(va); flush_icache_line(va); |