arm64/sysreg: Get rid of TRFCR_ELx SysregFields

There is no such thing as TRFCR_ELx in the architecture.
What we have is TRFCR_EL1, for which TRFCR_EL12 is an accessor.

Rename TRFCR_ELx_* to TRFCR_EL1_*, and fix the bit of code using
these names.

Similarly, TRFCR_EL12 is redefined as a mapping to TRFCR_EL1.

Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/87cygsqgkh.wl-maz@kernel.org
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>

Author: Marc Zyngier

arch/arm64/tools/sysreg

@@ -1999,7 +1999,7 @@ Field	17:16	ZEN
 Res0	15:0
 EndSysreg
 
-SysregFields TRFCR_ELx
+Sysreg	TRFCR_EL1	3	0	1	2	1
 Res0	63:7
 UnsignedEnum	6:5	TS
 	0b0001	VIRTUAL
@@ -2011,10 +2011,6 @@ Field	1	ExTRE
 Field	0	E0TRE
 EndSysregFields
 
-Sysreg	TRFCR_EL1	3	0	1	2	1
-Fields	TRFCR_ELx
-EndSysreg
-
 Sysreg	SMPRI_EL1	3	0	1	2	4
 Res0	63:4
 Field	3:0	PRIORITY
@@ -2991,7 +2987,7 @@ Mapping	ZCR_EL1
 EndSysreg
 
 Sysreg	TRFCR_EL12	3	5	1	2	1
-Fields	TRFCR_ELx
+Mapping	TRFCR_EL1
 EndSysreg
 
 Sysreg	SMCR_EL12	3	5	1	2	6

drivers/hwtracing/coresight/coresight-etm4x-core.c

@@ -275,7 +275,7 @@ static void etm4x_prohibit_trace(struct etmv4_drvdata *drvdata)
 	if (!drvdata->trfcr)
 		return;
 
-	trfcr = drvdata->trfcr & ~(TRFCR_ELx_ExTRE | TRFCR_ELx_E0TRE);
+	trfcr = drvdata->trfcr & ~(TRFCR_EL1_ExTRE | TRFCR_EL1_E0TRE);
 
 	write_trfcr(trfcr);
 	kvm_tracing_set_el1_configuration(trfcr);
@@ -286,9 +286,9 @@ static u64 etm4x_get_kern_user_filter(struct etmv4_drvdata *drvdata)
 	u64 trfcr = drvdata->trfcr;
 
 	if (drvdata->config.mode & ETM_MODE_EXCL_KERN)
-		trfcr &= ~TRFCR_ELx_ExTRE;
+		trfcr &= ~TRFCR_EL1_ExTRE;
 	if (drvdata->config.mode & ETM_MODE_EXCL_USER)
-		trfcr &= ~TRFCR_ELx_E0TRE;
+		trfcr &= ~TRFCR_EL1_E0TRE;
 
 	return trfcr;
 }
@@ -312,15 +312,15 @@ static void etm4x_allow_trace(struct etmv4_drvdata *drvdata)
 		return;
 
 	if (drvdata->config.mode & ETM_MODE_EXCL_HOST)
-		trfcr = drvdata->trfcr & ~(TRFCR_ELx_ExTRE | TRFCR_ELx_E0TRE);
+		trfcr = drvdata->trfcr & ~(TRFCR_EL1_ExTRE | TRFCR_EL1_E0TRE);
 	else
 		trfcr = etm4x_get_kern_user_filter(drvdata);
 
 	write_trfcr(trfcr);
 
 	/* Set filters for guests and pass to KVM */
 	if (drvdata->config.mode & ETM_MODE_EXCL_GUEST)
-		guest_trfcr = drvdata->trfcr & ~(TRFCR_ELx_ExTRE | TRFCR_ELx_E0TRE);
+		guest_trfcr = drvdata->trfcr & ~(TRFCR_EL1_ExTRE | TRFCR_EL1_E0TRE);
 	else
 		guest_trfcr = etm4x_get_kern_user_filter(drvdata);
 
@@ -1176,9 +1176,9 @@ static void cpu_detect_trace_filtering(struct etmv4_drvdata *drvdata)
 	 * tracing at the kernel EL and EL0, forcing to use the
 	 * virtual time as the timestamp.
 	 */
-	trfcr = (TRFCR_ELx_TS_VIRTUAL |
-		 TRFCR_ELx_ExTRE |
-		 TRFCR_ELx_E0TRE);
+	trfcr = (TRFCR_EL1_TS_VIRTUAL |
+		 TRFCR_EL1_ExTRE |
+		 TRFCR_EL1_E0TRE);
 
 	/* If we are running at EL2, allow tracing the CONTEXTIDR_EL2. */
 	if (is_kernel_in_hyp_mode())

drivers/hwtracing/coresight/coresight-etm4x-sysfs.c

@@ -2319,11 +2319,11 @@ static ssize_t ts_source_show(struct device *dev,
 		goto out;
 	}
 
-	switch (drvdata->trfcr & TRFCR_ELx_TS_MASK) {
-	case TRFCR_ELx_TS_VIRTUAL:
-	case TRFCR_ELx_TS_GUEST_PHYSICAL:
-	case TRFCR_ELx_TS_PHYSICAL:
-		val = FIELD_GET(TRFCR_ELx_TS_MASK, drvdata->trfcr);
+	switch (drvdata->trfcr & TRFCR_EL1_TS_MASK) {
+	case TRFCR_EL1_TS_VIRTUAL:
+	case TRFCR_EL1_TS_GUEST_PHYSICAL:
+	case TRFCR_EL1_TS_PHYSICAL:
+		val = FIELD_GET(TRFCR_EL1_TS_MASK, drvdata->trfcr);
 		break;
 	default:
 		val = -1;

drivers/hwtracing/coresight/coresight-trbe.c

@@ -1118,7 +1118,7 @@ static u64 cpu_prohibit_trace(void)
 	u64 trfcr = read_trfcr();
 
 	/* Prohibit tracing at EL0 & the kernel EL */
-	write_trfcr(trfcr & ~(TRFCR_ELx_ExTRE | TRFCR_ELx_E0TRE));
+	write_trfcr(trfcr & ~(TRFCR_EL1_ExTRE | TRFCR_EL1_E0TRE));
 	/* Return the original value of the TRFCR */
 	return trfcr;
 }