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authorLeon Alrae <leon.alrae@imgtec.com>2014-07-07 11:24:00 +0100
committerLeon Alrae <leon.alrae@imgtec.com>2014-11-03 11:48:34 +0000
commit9456c2fbcd82dd82328ac6e7602a815582b1043e (patch)
tree7a2f9f2763b0945ec990ae22f3847476f89c5de5 /target-mips/cpu.h
parent92ceb440d47b9ef3ba860cdc75a7e31563a7dc0c (diff)
downloadqemu-arm-9456c2fbcd82dd82328ac6e7602a815582b1043e.tar.gz
target-mips: add TLBINV support
For Standard TLB configuration (Config.MT=1): TLBINV invalidates a set of TLB entries based on ASID. The virtual address is ignored in the entry match. TLB entries which have their G bit set to 1 are not modified. TLBINVF causes all entries to be invalidated. Single TLB entry can be marked as invalid on TLB entry write by having EntryHi.EHINV set to 1. Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Diffstat (limited to 'target-mips/cpu.h')
-rw-r--r--target-mips/cpu.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/target-mips/cpu.h b/target-mips/cpu.h
index a9e1bc2eb4..9c38b4ff74 100644
--- a/target-mips/cpu.h
+++ b/target-mips/cpu.h
@@ -34,6 +34,7 @@ struct r4k_tlb_t {
uint_fast16_t XI1:1;
uint_fast16_t RI0:1;
uint_fast16_t RI1:1;
+ uint_fast16_t EHINV:1;
target_ulong PFN[2];
};
@@ -47,6 +48,8 @@ struct CPUMIPSTLBContext {
void (*helper_tlbwr)(struct CPUMIPSState *env);
void (*helper_tlbp)(struct CPUMIPSState *env);
void (*helper_tlbr)(struct CPUMIPSState *env);
+ void (*helper_tlbinv)(struct CPUMIPSState *env);
+ void (*helper_tlbinvf)(struct CPUMIPSState *env);
union {
struct {
r4k_tlb_t tlb[MIPS_TLB_MAX];
@@ -282,6 +285,7 @@ struct CPUMIPSState {
target_ulong CP0_BadVAddr;
int32_t CP0_Count;
target_ulong CP0_EntryHi;
+#define CP0EnHi_EHINV 10
int32_t CP0_Compare;
int32_t CP0_Status;
#define CP0St_CU3 31
@@ -393,6 +397,7 @@ struct CPUMIPSState {
uint32_t CP0_Config4;
uint32_t CP0_Config4_rw_bitmask;
#define CP0C4_M 31
+#define CP0C4_IE 29
#define CP0C4_KScrExist 16
uint32_t CP0_Config5;
uint32_t CP0_Config5_rw_bitmask;
@@ -529,6 +534,8 @@ void r4k_helper_tlbwi(CPUMIPSState *env);
void r4k_helper_tlbwr(CPUMIPSState *env);
void r4k_helper_tlbp(CPUMIPSState *env);
void r4k_helper_tlbr(CPUMIPSState *env);
+void r4k_helper_tlbinv(CPUMIPSState *env);
+void r4k_helper_tlbinvf(CPUMIPSState *env);
void mips_cpu_unassigned_access(CPUState *cpu, hwaddr addr,
bool is_write, bool is_exec, int unused,