arm64/sysreg: Align field names in ID_AA64DFR0_EL1 with architecture

The naming scheme the architecture uses for the fields in ID_AA64DFR0_EL1
does not align well with kernel conventions, using as it does a lot of
MixedCase in various arrangements. In preparation for automatically
generating the defines for this register rename the defines used to match
what is in the architecture.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220910163354.860255-2-broonie@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/include/asm/assembler.h

@@ -512,7 +512,7 @@ alternative_endif
  */
 	.macro	reset_pmuserenr_el0, tmpreg
 	mrs	\tmpreg, id_aa64dfr0_el1
-	sbfx	\tmpreg, \tmpreg, #ID_AA64DFR0_PMUVER_SHIFT, #4
+	sbfx	\tmpreg, \tmpreg, #ID_AA64DFR0_PMUVer_SHIFT, #4
 	cmp	\tmpreg, #1			// Skip if no PMU present
 	b.lt	9000f
 	msr	pmuserenr_el0, xzr		// Disable PMU access from EL0

arch/arm64/include/asm/cpufeature.h

@@ -553,7 +553,7 @@ cpuid_feature_cap_perfmon_field(u64 features, int field, u64 cap)
 	u64 mask = GENMASK_ULL(field + 3, field);
 
 	/* Treat IMPLEMENTATION DEFINED functionality as unimplemented */
-	if (val == ID_AA64DFR0_PMUVER_IMP_DEF)
+	if (val == ID_AA64DFR0_PMUVer_IMP_DEF)
 		val = 0;
 
 	if (val > cap) {

arch/arm64/include/asm/el2_setup.h

@@ -40,7 +40,7 @@
 
 .macro __init_el2_debug
 	mrs	x1, id_aa64dfr0_el1
-	sbfx	x0, x1, #ID_AA64DFR0_PMUVER_SHIFT, #4
+	sbfx	x0, x1, #ID_AA64DFR0_PMUVer_SHIFT, #4
 	cmp	x0, #1
 	b.lt	.Lskip_pmu_\@			// Skip if no PMU present
 	mrs	x0, pmcr_el0			// Disable debug access traps
@@ -49,7 +49,7 @@
 	csel	x2, xzr, x0, lt			// all PMU counters from EL1
 
 	/* Statistical profiling */
-	ubfx	x0, x1, #ID_AA64DFR0_PMSVER_SHIFT, #4
+	ubfx	x0, x1, #ID_AA64DFR0_PMSVer_SHIFT, #4
 	cbz	x0, .Lskip_spe_\@		// Skip if SPE not present
 
 	mrs_s	x0, SYS_PMBIDR_EL1              // If SPE available at EL2,
@@ -65,7 +65,7 @@
 
 .Lskip_spe_\@:
 	/* Trace buffer */
-	ubfx	x0, x1, #ID_AA64DFR0_TRBE_SHIFT, #4
+	ubfx	x0, x1, #ID_AA64DFR0_TraceBuffer_SHIFT, #4
 	cbz	x0, .Lskip_trace_\@		// Skip if TraceBuffer is not present
 
 	mrs_s	x0, SYS_TRBIDR_EL1
@@ -137,7 +137,7 @@
 
 	mov	x0, xzr
 	mrs	x1, id_aa64dfr0_el1
-	ubfx	x1, x1, #ID_AA64DFR0_PMSVER_SHIFT, #4
+	ubfx	x1, x1, #ID_AA64DFR0_PMSVer_SHIFT, #4
 	cmp	x1, #3
 	b.lt	.Lset_debug_fgt_\@
 	/* Disable PMSNEVFR_EL1 read and write traps */

arch/arm64/include/asm/hw_breakpoint.h

@@ -142,7 +142,7 @@ static inline int get_num_brps(void)
 	u64 dfr0 = read_sanitised_ftr_reg(SYS_ID_AA64DFR0_EL1);
 	return 1 +
 		cpuid_feature_extract_unsigned_field(dfr0,
-						ID_AA64DFR0_BRPS_SHIFT);
+						ID_AA64DFR0_BRPs_SHIFT);
 }
 
 /* Determine number of WRP registers available. */
@@ -151,7 +151,7 @@ static inline int get_num_wrps(void)
 	u64 dfr0 = read_sanitised_ftr_reg(SYS_ID_AA64DFR0_EL1);
 	return 1 +
 		cpuid_feature_extract_unsigned_field(dfr0,
-						ID_AA64DFR0_WRPS_SHIFT);
+						ID_AA64DFR0_WRPs_SHIFT);
 }
 
 #endif	/* __ASM_BREAKPOINT_H */

arch/arm64/include/asm/sysreg.h

@@ -700,26 +700,26 @@
 
 /* id_aa64dfr0 */
 #define ID_AA64DFR0_MTPMU_SHIFT		48
-#define ID_AA64DFR0_TRBE_SHIFT		44
-#define ID_AA64DFR0_TRACE_FILT_SHIFT	40
-#define ID_AA64DFR0_DOUBLELOCK_SHIFT	36
-#define ID_AA64DFR0_PMSVER_SHIFT	32
-#define ID_AA64DFR0_CTX_CMPS_SHIFT	28
-#define ID_AA64DFR0_WRPS_SHIFT		20
-#define ID_AA64DFR0_BRPS_SHIFT		12
-#define ID_AA64DFR0_PMUVER_SHIFT	8
-#define ID_AA64DFR0_TRACEVER_SHIFT	4
-#define ID_AA64DFR0_DEBUGVER_SHIFT	0
-
-#define ID_AA64DFR0_PMUVER_8_0		0x1
-#define ID_AA64DFR0_PMUVER_8_1		0x4
-#define ID_AA64DFR0_PMUVER_8_4		0x5
-#define ID_AA64DFR0_PMUVER_8_5		0x6
-#define ID_AA64DFR0_PMUVER_8_7		0x7
-#define ID_AA64DFR0_PMUVER_IMP_DEF	0xf
-
-#define ID_AA64DFR0_PMSVER_8_2		0x1
-#define ID_AA64DFR0_PMSVER_8_3		0x2
+#define ID_AA64DFR0_TraceBuffer_SHIFT	44
+#define ID_AA64DFR0_TraceFilt_SHIFT	40
+#define ID_AA64DFR0_DoubleLock_SHIFT	36
+#define ID_AA64DFR0_PMSVer_SHIFT	32
+#define ID_AA64DFR0_CTX_CMPs_SHIFT	28
+#define ID_AA64DFR0_WRPs_SHIFT		20
+#define ID_AA64DFR0_BRPs_SHIFT		12
+#define ID_AA64DFR0_PMUVer_SHIFT	8
+#define ID_AA64DFR0_TraceVer_SHIFT	4
+#define ID_AA64DFR0_DebugVer_SHIFT	0
+
+#define ID_AA64DFR0_PMUVer_8_0		0x1
+#define ID_AA64DFR0_PMUVer_8_1		0x4
+#define ID_AA64DFR0_PMUVer_8_4		0x5
+#define ID_AA64DFR0_PMUVer_8_5		0x6
+#define ID_AA64DFR0_PMUVer_8_7		0x7
+#define ID_AA64DFR0_PMUVer_IMP_DEF	0xf
+
+#define ID_AA64DFR0_PMSVer_8_2		0x1
+#define ID_AA64DFR0_PMSVer_8_3		0x2
 
 #define ID_DFR0_PERFMON_SHIFT		24
 

arch/arm64/kernel/cpufeature.c

@@ -434,17 +434,17 @@ static const struct arm64_ftr_bits ftr_id_mmfr0[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_aa64dfr0[] = {
-	S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_DOUBLELOCK_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64DFR0_PMSVER_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_CTX_CMPS_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_WRPS_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_BRPS_SHIFT, 4, 0),
+	S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_DoubleLock_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64DFR0_PMSVer_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_CTX_CMPs_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_WRPs_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64DFR0_BRPs_SHIFT, 4, 0),
 	/*
 	 * We can instantiate multiple PMU instances with different levels
 	 * of support.
 	 */
-	S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_EXACT, ID_AA64DFR0_PMUVER_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_EXACT, ID_AA64DFR0_DEBUGVER_SHIFT, 4, 0x6),
+	S_ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_EXACT, ID_AA64DFR0_PMUVer_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_EXACT, ID_AA64DFR0_DebugVer_SHIFT, 4, 0x6),
 	ARM64_FTR_END,
 };
 

arch/arm64/kernel/debug-monitors.c

@@ -28,7 +28,7 @@
 u8 debug_monitors_arch(void)
 {
 	return cpuid_feature_extract_unsigned_field(read_sanitised_ftr_reg(SYS_ID_AA64DFR0_EL1),
-						ID_AA64DFR0_DEBUGVER_SHIFT);
+						ID_AA64DFR0_DebugVer_SHIFT);
 }
 
 /*

arch/arm64/kernel/perf_event.c

@@ -390,7 +390,7 @@ static const struct attribute_group armv8_pmuv3_caps_attr_group = {
  */
 static bool armv8pmu_has_long_event(struct arm_pmu *cpu_pmu)
 {
-	return (cpu_pmu->pmuver >= ID_AA64DFR0_PMUVER_8_5);
+	return (cpu_pmu->pmuver >= ID_AA64DFR0_PMUVer_8_5);
 }
 
 static inline bool armv8pmu_event_has_user_read(struct perf_event *event)
@@ -1145,8 +1145,8 @@ static void __armv8pmu_probe_pmu(void *info)
 
 	dfr0 = read_sysreg(id_aa64dfr0_el1);
 	pmuver = cpuid_feature_extract_unsigned_field(dfr0,
-			ID_AA64DFR0_PMUVER_SHIFT);
-	if (pmuver == ID_AA64DFR0_PMUVER_IMP_DEF || pmuver == 0)
+			ID_AA64DFR0_PMUVer_SHIFT);
+	if (pmuver == ID_AA64DFR0_PMUVer_IMP_DEF || pmuver == 0)
 		return;
 
 	cpu_pmu->pmuver = pmuver;
@@ -1172,7 +1172,7 @@ static void __armv8pmu_probe_pmu(void *info)
 			     pmceid, ARMV8_PMUV3_MAX_COMMON_EVENTS);
 
 	/* store PMMIR_EL1 register for sysfs */
-	if (pmuver >= ID_AA64DFR0_PMUVER_8_4 && (pmceid_raw[1] & BIT(31)))
+	if (pmuver >= ID_AA64DFR0_PMUVer_8_4 && (pmceid_raw[1] & BIT(31)))
 		cpu_pmu->reg_pmmir = read_cpuid(PMMIR_EL1);
 	else
 		cpu_pmu->reg_pmmir = 0;

arch/arm64/kvm/debug.c

@@ -295,12 +295,12 @@ void kvm_arch_vcpu_load_debug_state_flags(struct kvm_vcpu *vcpu)
 	 * If SPE is present on this CPU and is available at current EL,
 	 * we may need to check if the host state needs to be saved.
 	 */
-	if (cpuid_feature_extract_unsigned_field(dfr0, ID_AA64DFR0_PMSVER_SHIFT) &&
+	if (cpuid_feature_extract_unsigned_field(dfr0, ID_AA64DFR0_PMSVer_SHIFT) &&
 	    !(read_sysreg_s(SYS_PMBIDR_EL1) & BIT(SYS_PMBIDR_EL1_P_SHIFT)))
 		vcpu_set_flag(vcpu, DEBUG_STATE_SAVE_SPE);
 
 	/* Check if we have TRBE implemented and available at the host */
-	if (cpuid_feature_extract_unsigned_field(dfr0, ID_AA64DFR0_TRBE_SHIFT) &&
+	if (cpuid_feature_extract_unsigned_field(dfr0, ID_AA64DFR0_TraceBuffer_SHIFT) &&
 	    !(read_sysreg_s(SYS_TRBIDR_EL1) & TRBIDR_PROG))
 		vcpu_set_flag(vcpu, DEBUG_STATE_SAVE_TRBE);
 }

arch/arm64/kvm/hyp/nvhe/pkvm.c

@@ -86,32 +86,32 @@ static void pvm_init_traps_aa64dfr0(struct kvm_vcpu *vcpu)
 	u64 cptr_set = 0;
 
 	/* Trap/constrain PMU */
-	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_PMUVER), feature_ids)) {
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_PMUVer), feature_ids)) {
 		mdcr_set |= MDCR_EL2_TPM | MDCR_EL2_TPMCR;
 		mdcr_clear |= MDCR_EL2_HPME | MDCR_EL2_MTPME |
 			      MDCR_EL2_HPMN_MASK;
 	}
 
 	/* Trap Debug */
-	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_DEBUGVER), feature_ids))
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_DebugVer), feature_ids))
 		mdcr_set |= MDCR_EL2_TDRA | MDCR_EL2_TDA | MDCR_EL2_TDE;
 
 	/* Trap OS Double Lock */
-	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_DOUBLELOCK), feature_ids))
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_DoubleLock), feature_ids))
 		mdcr_set |= MDCR_EL2_TDOSA;
 
 	/* Trap SPE */
-	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_PMSVER), feature_ids)) {
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_PMSVer), feature_ids)) {
 		mdcr_set |= MDCR_EL2_TPMS;
 		mdcr_clear |= MDCR_EL2_E2PB_MASK << MDCR_EL2_E2PB_SHIFT;
 	}
 
 	/* Trap Trace Filter */
-	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_TRACE_FILT), feature_ids))
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_TraceFilt), feature_ids))
 		mdcr_set |= MDCR_EL2_TTRF;
 
 	/* Trap Trace */
-	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_TRACEVER), feature_ids))
+	if (!FIELD_GET(ARM64_FEATURE_MASK(ID_AA64DFR0_TraceVer), feature_ids))
 		cptr_set |= CPTR_EL2_TTA;
 
 	vcpu->arch.mdcr_el2 |= mdcr_set;

arch/arm64/kvm/pmu-emul.c

@@ -33,12 +33,12 @@ static u32 kvm_pmu_event_mask(struct kvm *kvm)
 	pmuver = kvm->arch.arm_pmu->pmuver;
 
 	switch (pmuver) {
-	case ID_AA64DFR0_PMUVER_8_0:
+	case ID_AA64DFR0_PMUVer_8_0:
 		return GENMASK(9, 0);
-	case ID_AA64DFR0_PMUVER_8_1:
-	case ID_AA64DFR0_PMUVER_8_4:
-	case ID_AA64DFR0_PMUVER_8_5:
-	case ID_AA64DFR0_PMUVER_8_7:
+	case ID_AA64DFR0_PMUVer_8_1:
+	case ID_AA64DFR0_PMUVer_8_4:
+	case ID_AA64DFR0_PMUVer_8_5:
+	case ID_AA64DFR0_PMUVer_8_7:
 		return GENMASK(15, 0);
 	default:		/* Shouldn't be here, just for sanity */
 		WARN_ONCE(1, "Unknown PMU version %d\n", pmuver);
@@ -774,7 +774,7 @@ void kvm_host_pmu_init(struct arm_pmu *pmu)
 {
 	struct arm_pmu_entry *entry;
 
-	if (pmu->pmuver == 0 || pmu->pmuver == ID_AA64DFR0_PMUVER_IMP_DEF)
+	if (pmu->pmuver == 0 || pmu->pmuver == ID_AA64DFR0_PMUVer_IMP_DEF)
 		return;
 
 	mutex_lock(&arm_pmus_lock);
@@ -828,7 +828,7 @@ static struct arm_pmu *kvm_pmu_probe_armpmu(void)
 	if (event->pmu) {
 		pmu = to_arm_pmu(event->pmu);
 		if (pmu->pmuver == 0 ||
-		    pmu->pmuver == ID_AA64DFR0_PMUVER_IMP_DEF)
+		    pmu->pmuver == ID_AA64DFR0_PMUVer_IMP_DEF)
 			pmu = NULL;
 	}
 
@@ -856,7 +856,7 @@ u64 kvm_pmu_get_pmceid(struct kvm_vcpu *vcpu, bool pmceid1)
 		 * Don't advertise STALL_SLOT, as PMMIR_EL0 is handled
 		 * as RAZ
 		 */
-		if (vcpu->kvm->arch.arm_pmu->pmuver >= ID_AA64DFR0_PMUVER_8_4)
+		if (vcpu->kvm->arch.arm_pmu->pmuver >= ID_AA64DFR0_PMUVer_8_4)
 			val &= ~BIT_ULL(ARMV8_PMUV3_PERFCTR_STALL_SLOT - 32);
 		base = 32;
 	}

arch/arm64/kvm/sys_regs.c

@@ -1110,14 +1110,14 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu,
 		break;
 	case SYS_ID_AA64DFR0_EL1:
 		/* Limit debug to ARMv8.0 */
-		val &= ~ARM64_FEATURE_MASK(ID_AA64DFR0_DEBUGVER);
-		val |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64DFR0_DEBUGVER), 6);
+		val &= ~ARM64_FEATURE_MASK(ID_AA64DFR0_DebugVer);
+		val |= FIELD_PREP(ARM64_FEATURE_MASK(ID_AA64DFR0_DebugVer), 6);
 		/* Limit guests to PMUv3 for ARMv8.4 */
 		val = cpuid_feature_cap_perfmon_field(val,
-						      ID_AA64DFR0_PMUVER_SHIFT,
-						      kvm_vcpu_has_pmu(vcpu) ? ID_AA64DFR0_PMUVER_8_4 : 0);
+						      ID_AA64DFR0_PMUVer_SHIFT,
+						      kvm_vcpu_has_pmu(vcpu) ? ID_AA64DFR0_PMUVer_8_4 : 0);
 		/* Hide SPE from guests */
-		val &= ~ARM64_FEATURE_MASK(ID_AA64DFR0_PMSVER);
+		val &= ~ARM64_FEATURE_MASK(ID_AA64DFR0_PMSVer);
 		break;
 	case SYS_ID_DFR0_EL1:
 		/* Limit guests to PMUv3 for ARMv8.4 */
@@ -1827,9 +1827,9 @@ static bool trap_dbgdidr(struct kvm_vcpu *vcpu,
 		u64 pfr = read_sanitised_ftr_reg(SYS_ID_AA64PFR0_EL1);
 		u32 el3 = !!cpuid_feature_extract_unsigned_field(pfr, ID_AA64PFR0_EL1_EL3_SHIFT);
 
-		p->regval = ((((dfr >> ID_AA64DFR0_WRPS_SHIFT) & 0xf) << 28) |
-			     (((dfr >> ID_AA64DFR0_BRPS_SHIFT) & 0xf) << 24) |
-			     (((dfr >> ID_AA64DFR0_CTX_CMPS_SHIFT) & 0xf) << 20)
+		p->regval = ((((dfr >> ID_AA64DFR0_WRPs_SHIFT) & 0xf) << 28) |
+			     (((dfr >> ID_AA64DFR0_BRPs_SHIFT) & 0xf) << 24) |
+			     (((dfr >> ID_AA64DFR0_CTX_CMPs_SHIFT) & 0xf) << 20)
 			     | (6 << 16) | (1 << 15) | (el3 << 14) | (el3 << 12));
 		return true;
 	}