[PULL 32/57] target/arm: Implement the access tag cache flushes

[Peter Maydell]

From: Richard Henderson <richard.henderson@linaro.org>

Like the regular data cache flushes, these are nops within qemu.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200626033144.790098-21-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/helper.c | 65 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 2c6ec244af8..d8c31d03dad 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -6929,6 +6929,32 @@ static const ARMCPRegInfo mte_reginfo[] = {
       .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 7,
       .type = ARM_CP_NO_RAW,
       .access = PL0_RW, .readfn = tco_read, .writefn = tco_write },
+    { .name = "DC_IGVAC", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 3,
+      .type = ARM_CP_NOP, .access = PL1_W,
+      .accessfn = aa64_cacheop_poc_access },
+    { .name = "DC_IGSW", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 4,
+      .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw },
+    { .name = "DC_IGDVAC", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 5,
+      .type = ARM_CP_NOP, .access = PL1_W,
+      .accessfn = aa64_cacheop_poc_access },
+    { .name = "DC_IGDSW", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 6,
+      .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw },
+    { .name = "DC_CGSW", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 4,
+      .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw },
+    { .name = "DC_CGDSW", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 6,
+      .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw },
+    { .name = "DC_CIGSW", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 4,
+      .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw },
+    { .name = "DC_CIGDSW", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 6,
+      .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw },
     REGINFO_SENTINEL
 };
 
@@ -6938,6 +6964,43 @@ static const ARMCPRegInfo mte_tco_ro_reginfo[] = {
       .type = ARM_CP_CONST, .access = PL0_RW, },
     REGINFO_SENTINEL
 };
+
+static const ARMCPRegInfo mte_el0_cacheop_reginfo[] = {
+    { .name = "DC_CGVAC", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 3,
+      .type = ARM_CP_NOP, .access = PL0_W,
+      .accessfn = aa64_cacheop_poc_access },
+    { .name = "DC_CGDVAC", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 5,
+      .type = ARM_CP_NOP, .access = PL0_W,
+      .accessfn = aa64_cacheop_poc_access },
+    { .name = "DC_CGVAP", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 3,
+      .type = ARM_CP_NOP, .access = PL0_W,
+      .accessfn = aa64_cacheop_poc_access },
+    { .name = "DC_CGDVAP", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 5,
+      .type = ARM_CP_NOP, .access = PL0_W,
+      .accessfn = aa64_cacheop_poc_access },
+    { .name = "DC_CGVADP", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 3,
+      .type = ARM_CP_NOP, .access = PL0_W,
+      .accessfn = aa64_cacheop_poc_access },
+    { .name = "DC_CGDVADP", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 5,
+      .type = ARM_CP_NOP, .access = PL0_W,
+      .accessfn = aa64_cacheop_poc_access },
+    { .name = "DC_CIGVAC", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 3,
+      .type = ARM_CP_NOP, .access = PL0_W,
+      .accessfn = aa64_cacheop_poc_access },
+    { .name = "DC_CIGDVAC", .state = ARM_CP_STATE_AA64,
+      .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 5,
+      .type = ARM_CP_NOP, .access = PL0_W,
+      .accessfn = aa64_cacheop_poc_access },
+    REGINFO_SENTINEL
+};
+
 #endif
 
 static CPAccessResult access_predinv(CPUARMState *env, const ARMCPRegInfo *ri,
@@ -8071,8 +8134,10 @@ void register_cp_regs_for_features(ARMCPU *cpu)
      */
     if (cpu_isar_feature(aa64_mte, cpu)) {
         define_arm_cp_regs(cpu, mte_reginfo);
+        define_arm_cp_regs(cpu, mte_el0_cacheop_reginfo);
     } else if (cpu_isar_feature(aa64_mte_insn_reg, cpu)) {
         define_arm_cp_regs(cpu, mte_tco_ro_reginfo);
+        define_arm_cp_regs(cpu, mte_el0_cacheop_reginfo);
     }
 #endif
 
-- 
2.20.1