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Thu, 4 Jul 2024 14:23:59 +0000 From: Matthieu Longo To: CC: Richard Earnshaw , Nick Clifton , Matthieu Longo Subject: [PATCH v1 3/4] aarch64: add STEP2 feature and its associated registers Date: Thu, 4 Jul 2024 15:23:37 +0100 Message-ID: <20240704142338.1582659-4-matthieu.longo@arm.com> X-Mailer: git-send-email 2.45.1 In-Reply-To: <20240704142338.1582659-1-matthieu.longo@arm.com> References: <20240704142338.1582659-1-matthieu.longo@arm.com> MIME-Version: 1.0 X-EOPAttributedMessage: 1 X-MS-TrafficTypeDiagnostic: AM4PEPF00027A5F:EE_|DBBPR08MB6153:EE_|AMS0EPF000001B0:EE_|PAWPR08MB9808:EE_ X-MS-Office365-Filtering-Correlation-Id: 45103e36-4de5-4124-90ea-08dc9c34fadd X-LD-Processed: f34e5979-57d9-4aaa-ad4d-b122a662184d,ExtAddr x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; ARA:13230040|376014|1800799024|36860700013|82310400026; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:40.67.248.234; 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CTRY:IE; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:64aa7808-outbound-1.mta.getcheckrecipient.com; PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com; CAT:NONE; SFS:(13230040)(36860700013)(1800799024)(376014)(35042699022)(82310400026); DIR:OUT; SFP:1101; X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Jul 2024 14:24:14.0199 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 45103e36-4de5-4124-90ea-08dc9c34fadd X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d; Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AMS0EPF000001B0.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PAWPR08MB9808 X-Spam-Status: No, score=-11.9 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FORGED_SPF_HELO, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_NONE, TXREP, UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: binutils@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Binutils mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: binutils-bounces~patchwork=sourceware.org@sourceware.org AArch64 defines new registers for the feature step2 (Enhanced Software Step Extension). step2 is an Armv9.5-A feature. This patch also adds relevant tests. Regression tested on aarch64-none-elf, and no regression found. --- .../aarch64/sysreg/armv9_5-a-sysregs-archv9_4-unsupported.l | 4 ++++ gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.d | 2 ++ gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.s | 3 +++ include/opcode/aarch64.h | 3 +++ opcodes/aarch64-sys-regs.def | 1 + 5 files changed, 13 insertions(+) diff --git a/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs-archv9_4-unsupported.l b/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs-archv9_4-unsupported.l index 66dd5e8558e..58e7f9b9c26 100644 --- a/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs-archv9_4-unsupported.l +++ b/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs-archv9_4-unsupported.l @@ -10,4 +10,8 @@ [^ :]+:[0-9]+: Error: selected processor does not support system register name 'spmzr_el0' [^ :]+:[0-9]+: Info: macro invoked from here [^ :]+:[0-9]+: Error: selected processor does not support system register name 'spmzr_el0' +[^ :]+:[0-9]+: Info: macro invoked from here +[^ :]+:[0-9]+: Error: selected processor does not support system register name 'mdstepop_el1' +[^ :]+:[0-9]+: Info: macro invoked from here +[^ :]+:[0-9]+: Error: selected processor does not support system register name 'mdstepop_el1' [^ :]+:[0-9]+: Info: macro invoked from here \ No newline at end of file diff --git a/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.d b/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.d index 1a6c3be8abb..c52142d3998 100644 --- a/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.d +++ b/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.d @@ -13,3 +13,5 @@ Disassembly of section \.text: .*: d53e5260 mrs x0, vsesr_el3 .*: d5139c80 msr spmzr_el0, x0 .*: d5339c80 mrs x0, spmzr_el0 +.*: d5100540 msr mdstepop_el1, x0 +.*: d5300540 mrs x0, mdstepop_el1 diff --git a/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.s b/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.s index 701a80ce903..e3ba989c88e 100644 --- a/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.s +++ b/gas/testsuite/gas/aarch64/sysreg/armv9_5-a-sysregs.s @@ -8,3 +8,6 @@ rw_sys_reg sys_reg=vsesr_el3 xreg=x0 r=1 w=1 /* System Performance Monitors Extension version 2. */ rw_sys_reg sys_reg=spmzr_el0 xreg=x0 r=1 w=1 + +/* Enhanced Software Step Extension. */ +rw_sys_reg sys_reg=mdstepop_el1 xreg=x0 r=1 w=1 diff --git a/include/opcode/aarch64.h b/include/opcode/aarch64.h index 4dc30193d40..dfed0a509b2 100644 --- a/include/opcode/aarch64.h +++ b/include/opcode/aarch64.h @@ -234,6 +234,8 @@ enum aarch64_feature_bit { AARCH64_FEATURE_SVE2p1, /* RCPC3 instructions. */ AARCH64_FEATURE_RCPC3, + /* Enhanced Software Step Extension. */ + AARCH64_FEATURE_STEP2, /* Checked Pointer Arithmetic instructions. */ AARCH64_FEATURE_CPA, /* FAMINMAX instructions. */ @@ -373,6 +375,7 @@ enum aarch64_feature_bit { | AARCH64_FEATBIT (X, FAMINMAX)\ | AARCH64_FEATBIT (X, E3DSE) \ | AARCH64_FEATBIT (X, SPMU2) \ + | AARCH64_FEATBIT (X, STEP2) \ ) /* Architectures are the sum of the base and extensions. */ diff --git a/opcodes/aarch64-sys-regs.def b/opcodes/aarch64-sys-regs.def index 4fbc65e32fd..cd2f1ac8516 100644 --- a/opcodes/aarch64-sys-regs.def +++ b/opcodes/aarch64-sys-regs.def @@ -573,6 +573,7 @@ SYSREG ("mdrar_el1", CPENC (2,0,1,0,0), F_REG_READ, AARCH64_NO_FEATURES) SYSREG ("mdscr_el1", CPENC (2,0,0,2,2), 0, AARCH64_NO_FEATURES) SYSREG ("mdselr_el1", CPENC (2,0,0,4,2), F_ARCHEXT, AARCH64_FEATURE (DEBUGv8p9)) + SYSREG ("mdstepop_el1", CPENC (2,0,0,5,2), F_ARCHEXT, AARCH64_FEATURE (STEP2)) SYSREG ("mecid_a0_el2", CPENC (3,4,10,8,1), 0, AARCH64_NO_FEATURES) SYSREG ("mecid_a1_el2", CPENC (3,4,10,8,3), 0, AARCH64_NO_FEATURES) SYSREG ("mecid_p0_el2", CPENC (3,4,10,8,0), 0, AARCH64_NO_FEATURES)