gas: aarch64: Add system registers for Debug and PMU extensions

This patch adds support for the new AArch64 system registers that are part of the following extensions:
 * FEAT_DEBUGv8p9
 * FEAT_PMUv3p9
 * FEAT_PMUv3_SS
 * FEAT_PMUv3_ICNTR
 * FEAT_SEBEP

3 files changed, 151 insertions, 0 deletions

diff --git a/gas/testsuite/gas/aarch64/armv8_9-a-sysregs-bad.l b/gas/testsuite/gas/aarch64/armv8_9-a-sysregs-bad.l
index 71ec06e..02d9cac 100644
--- a/gas/testsuite/gas/aarch64/armv8_9-a-sysregs-bad.l
+++ b/gas/testsuite/gas/aarch64/armv8_9-a-sysregs-bad.l
@@ -77,3 +77,50 @@
 .*: Error: selected processor does not support system register name 'tcr2_el1'
 .*: Error: selected processor does not support system register name 'tcr2_el12'
 .*: Error: selected processor does not support system register name 'tcr2_el2'
+.*: Error: selected processor does not support system register name 'mdselr_el1'
+.*: Error: selected processor does not support system register name 'mdselr_el1'
+.*: Error: selected processor does not support system register name 'pmuacr_el1'
+.*: Error: selected processor does not support system register name 'pmuacr_el1'
+.*: Error: selected processor does not support system register name 'pmccntsvr_el1'
+.*: Error: selected processor does not support system register name 'pmicntsvr_el1'
+.*: Error: selected processor does not support system register name 'pmsscr_el1'
+.*: Error: selected processor does not support system register name 'pmsscr_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr0_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr10_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr11_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr12_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr13_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr14_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr15_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr16_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr17_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr18_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr19_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr1_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr20_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr21_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr22_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr23_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr24_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr25_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr26_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr27_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr28_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr29_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr30_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr3_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr4_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr5_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr6_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr7_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr8_el1'
+.*: Error: selected processor does not support system register name 'pmevcntsvr9_el1'
+.*: Error: selected processor does not support system register name 'pmicntr_el0'
+.*: Error: selected processor does not support system register name 'pmicntr_el0'
+.*: Error: selected processor does not support system register name 'pmicfiltr_el0'
+.*: Error: selected processor does not support system register name 'pmicfiltr_el0'
+.*: Error: selected processor does not support system register name 'pmzr_el0'
+.*: Error: selected processor does not support system register name 'pmecr_el1'
+.*: Error: selected processor does not support system register name 'pmecr_el1'
+.*: Error: selected processor does not support system register name 'pmiar_el1'
+.*: Error: selected processor does not support system register name 'pmiar_el1'
diff --git a/gas/testsuite/gas/aarch64/armv8_9-a-sysregs.d b/gas/testsuite/gas/aarch64/armv8_9-a-sysregs.d
index ea4cc86..dc1e8bc 100644
--- a/gas/testsuite/gas/aarch64/armv8_9-a-sysregs.d
+++ b/gas/testsuite/gas/aarch64/armv8_9-a-sysregs.d
@@ -84,3 +84,50 @@ Disassembly of section \.text:
 .*:	d5182060 	msr	tcr2_el1, x0
 .*:	d51d2060 	msr	tcr2_el12, x0
 .*:	d51c2060 	msr	tcr2_el2, x0
+.*:	d5300440 	mrs	x0, mdselr_el1
+.*:	d5100440 	msr	mdselr_el1, x0
+.*:	d5389e80 	mrs	x0, pmuacr_el1
+.*:	d5189e80 	msr	pmuacr_el1, x0
+.*:	d530ebe0 	mrs	x0, pmccntsvr_el1
+.*:	d530ec00 	mrs	x0, pmicntsvr_el1
+.*:	d5389d60 	mrs	x0, pmsscr_el1
+.*:	d5189d60 	msr	pmsscr_el1, x0
+.*:	d530e800 	mrs	x0, pmevcntsvr0_el1
+.*:	d530e940 	mrs	x0, pmevcntsvr10_el1
+.*:	d530e960 	mrs	x0, pmevcntsvr11_el1
+.*:	d530e980 	mrs	x0, pmevcntsvr12_el1
+.*:	d530e9a0 	mrs	x0, pmevcntsvr13_el1
+.*:	d530e9c0 	mrs	x0, pmevcntsvr14_el1
+.*:	d530e9e0 	mrs	x0, pmevcntsvr15_el1
+.*:	d530ea00 	mrs	x0, pmevcntsvr16_el1
+.*:	d530ea20 	mrs	x0, pmevcntsvr17_el1
+.*:	d530ea40 	mrs	x0, pmevcntsvr18_el1
+.*:	d530ea60 	mrs	x0, pmevcntsvr19_el1
+.*:	d530e820 	mrs	x0, pmevcntsvr1_el1
+.*:	d530ea80 	mrs	x0, pmevcntsvr20_el1
+.*:	d530eaa0 	mrs	x0, pmevcntsvr21_el1
+.*:	d530eac0 	mrs	x0, pmevcntsvr22_el1
+.*:	d530eae0 	mrs	x0, pmevcntsvr23_el1
+.*:	d530eb00 	mrs	x0, pmevcntsvr24_el1
+.*:	d530eb20 	mrs	x0, pmevcntsvr25_el1
+.*:	d530eb40 	mrs	x0, pmevcntsvr26_el1
+.*:	d530eb60 	mrs	x0, pmevcntsvr27_el1
+.*:	d530eb80 	mrs	x0, pmevcntsvr28_el1
+.*:	d530eba0 	mrs	x0, pmevcntsvr29_el1
+.*:	d530ebc0 	mrs	x0, pmevcntsvr30_el1
+.*:	d530e860 	mrs	x0, pmevcntsvr3_el1
+.*:	d530e880 	mrs	x0, pmevcntsvr4_el1
+.*:	d530e8a0 	mrs	x0, pmevcntsvr5_el1
+.*:	d530e8c0 	mrs	x0, pmevcntsvr6_el1
+.*:	d530e8e0 	mrs	x0, pmevcntsvr7_el1
+.*:	d530e900 	mrs	x0, pmevcntsvr8_el1
+.*:	d530e920 	mrs	x0, pmevcntsvr9_el1
+.*:	d53b9400 	mrs	x0, pmicntr_el0
+.*:	d51b9400 	msr	pmicntr_el0, x0
+.*:	d53b9600 	mrs	x0, pmicfiltr_el0
+.*:	d51b9600 	msr	pmicfiltr_el0, x0
+.*:	d51b9d80 	msr	pmzr_el0, x0
+.*:	d5389ea0 	mrs	x0, pmecr_el1
+.*:	d5189ea0 	msr	pmecr_el1, x0
+.*:	d5389ee0 	mrs	x0, pmiar_el1
+.*:	d5189ee0 	msr	pmiar_el1, x0
\ No newline at end of file
diff --git a/gas/testsuite/gas/aarch64/armv8_9-a-sysregs.s b/gas/testsuite/gas/aarch64/armv8_9-a-sysregs.s
index 2768c26..5366318 100644
--- a/gas/testsuite/gas/aarch64/armv8_9-a-sysregs.s
+++ b/gas/testsuite/gas/aarch64/armv8_9-a-sysregs.s
@@ -98,3 +98,60 @@
 	msr tcr2_el1, x0
 	msr tcr2_el12, x0
 	msr tcr2_el2, x0
+
+	/* FEAT_DEBUGv8p9 Extension.  */
+	mrs x0, mdselr_el1
+	msr mdselr_el1, x0
+
+	/* FEAT_PMUv3p9 Extension.  */
+	mrs x0, pmuacr_el1
+	msr pmuacr_el1, x0
+
+	/* FEAT_PMUv3_SS Extension.  */
+	mrs x0, pmccntsvr_el1
+	mrs x0, pmicntsvr_el1
+	mrs x0, pmsscr_el1
+	msr pmsscr_el1, x0
+	mrs x0, pmevcntsvr0_el1
+	mrs x0, pmevcntsvr10_el1
+	mrs x0, pmevcntsvr11_el1
+	mrs x0, pmevcntsvr12_el1
+	mrs x0, pmevcntsvr13_el1
+	mrs x0, pmevcntsvr14_el1
+	mrs x0, pmevcntsvr15_el1
+	mrs x0, pmevcntsvr16_el1
+	mrs x0, pmevcntsvr17_el1
+	mrs x0, pmevcntsvr18_el1
+	mrs x0, pmevcntsvr19_el1
+	mrs x0, pmevcntsvr1_el1
+	mrs x0, pmevcntsvr20_el1
+	mrs x0, pmevcntsvr21_el1
+	mrs x0, pmevcntsvr22_el1
+	mrs x0, pmevcntsvr23_el1
+	mrs x0, pmevcntsvr24_el1
+	mrs x0, pmevcntsvr25_el1
+	mrs x0, pmevcntsvr26_el1
+	mrs x0, pmevcntsvr27_el1
+	mrs x0, pmevcntsvr28_el1
+	mrs x0, pmevcntsvr29_el1
+	mrs x0, pmevcntsvr30_el1
+	mrs x0, pmevcntsvr3_el1
+	mrs x0, pmevcntsvr4_el1
+	mrs x0, pmevcntsvr5_el1
+	mrs x0, pmevcntsvr6_el1
+	mrs x0, pmevcntsvr7_el1
+	mrs x0, pmevcntsvr8_el1
+	mrs x0, pmevcntsvr9_el1
+
+	/* FEAT_PMUv3_ICNTR Extension.  */
+	mrs x0, pmicntr_el0
+	msr pmicntr_el0, x0
+	mrs x0, pmicfiltr_el0
+	msr pmicfiltr_el0, x0
+	msr pmzr_el0, x0
+
+	/* FEAT_SEBEP Extension.  */
+	mrs x0, pmecr_el1
+	msr pmecr_el1, x0
+	mrs x0, pmiar_el1
+	msr pmiar_el1, x0