arm64/sysreg: Standardise naming for ID_ISAR0_EL1

To convert the 32bit id registers to use the sysreg generation, they
must first have a regular pattern, to match the symbols the script
generates.

Ensure symbols for the ID_ISAR0_EL1 register have an _EL1 suffix,
and use lower-case for feature names where the arm-arm does the same.

To functional change.
Signed-off-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20221130171637.718182-5-james.morse@arm.comSigned-off-by: Will Deacon <will@kernel.org>

arch/arm64/include/asm/sysreg.h

@@ -710,13 +710,13 @@
 
 #define ID_DFR1_MTPMU_SHIFT		0
 
-#define ID_ISAR0_DIVIDE_SHIFT		24
-#define ID_ISAR0_DEBUG_SHIFT		20
-#define ID_ISAR0_COPROC_SHIFT		16
-#define ID_ISAR0_CMPBRANCH_SHIFT	12
-#define ID_ISAR0_BITFIELD_SHIFT		8
-#define ID_ISAR0_BITCOUNT_SHIFT		4
-#define ID_ISAR0_SWAP_SHIFT		0
+#define ID_ISAR0_EL1_Divide_SHIFT	24
+#define ID_ISAR0_EL1_Debug_SHIFT	20
+#define ID_ISAR0_EL1_Coproc_SHIFT	16
+#define ID_ISAR0_EL1_CmpBranch_SHIFT	12
+#define ID_ISAR0_EL1_BitField_SHIFT	8
+#define ID_ISAR0_EL1_BitCount_SHIFT	4
+#define ID_ISAR0_EL1_Swap_SHIFT		0
 
 #define ID_ISAR5_RDM_SHIFT		24
 #define ID_ISAR5_CRC32_SHIFT		16

arch/arm64/kernel/cpufeature.c

@@ -470,13 +470,13 @@ static const struct arm64_ftr_bits ftr_gmid[] = {
 };
 
 static const struct arm64_ftr_bits ftr_id_isar0[] = {
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_DIVIDE_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_DEBUG_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_COPROC_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_CMPBRANCH_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_BITFIELD_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_BITCOUNT_SHIFT, 4, 0),
-	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_SWAP_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_EL1_Divide_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_EL1_Debug_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_EL1_Coproc_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_EL1_CmpBranch_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_EL1_BitField_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_EL1_BitCount_SHIFT, 4, 0),
+	ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_ISAR0_EL1_Swap_SHIFT, 4, 0),
 	ARM64_FTR_END,
 };