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Tue, 28 Nov 2023 15:56:12 +0000 From: Victor Do Nascimento To: CC: , , , Victor Do Nascimento Subject: [PATCH v2 0/5] aarch64: Add Armv9.4-a 128-bit system-register read/write support Date: Tue, 28 Nov 2023 15:55:42 +0000 Message-ID: <20231128155609.198744-1-victor.donascimento@arm.com> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 1 X-MS-TrafficTypeDiagnostic: AM4PEPF00027A6A:EE_|VI1PR08MB9982:EE_|AM3PEPF0000A799:EE_|VI1PR08MB10176:EE_ X-MS-Office365-Filtering-Correlation-Id: c236ee1b-64e6-4969-6b09-08dbf02a92cc x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:40.67.248.234;CTRY:IE;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:nebula.arm.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230031)(4636009)(376002)(136003)(396003)(346002)(39850400004)(230922051799003)(451199024)(64100799003)(186009)(1800799012)(82310400011)(46966006)(36840700001)(70206006)(54906003)(2616005)(7696005)(426003)(336012)(5660300002)(82740400003)(1076003)(966005)(478600001)(316002)(41300700001)(4326008)(36756003)(2906002)(6916009)(86362001)(8936002)(70586007)(26005)(8676002)(6666004)(47076005)(81166007)(356005)(36860700001)(40480700001)(83380400001)(36900700001);DIR:OUT;SFP:1101; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Nov 2023 15:56:24.4751 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c236ee1b-64e6-4969-6b09-08dbf02a92cc 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: AM3PEPF0000A799.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB10176 X-Spam-Status: No, score=-6.4 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,KAM_DMARC_NONE,KAM_SHORT,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Changes from v1 - https://gcc.gnu.org/pipermail/gcc-patches/2023-November/635531.html * [PATCH 4/5] - For `error_at' message, put feature name in quotes. * [PATCH 4/5] - For `aarch64_retrieve_sysreg' function, add description of new parameter to comments. * [PATCH 5/5] - Reduce the minimum arch requirements of the system register unit tests, selectively using `#pragma GCC target' when testing 128-bit sysreg r/w functions. --- Given the introduction of optional 128-bit page table descriptor and translation hardening extension support with the Arm9.4-a architecture, this patch series introduces the necessary changes to the aarch64-specific builtin code to enable the reading and writing of 128-bit system registers. In so doing, the following ACLE builtins and feature macro are made available to the compiler: * __uint128_t __arm_rsr128(const char *special_register); * void __arm_wsr128(const char *special_register, __uint128_t value); * __ARM_FEATURE_SYSREG128. Finally, in order to update the GCC system-register database bringing it in line with Binutils, and in so doing add the relevant 128-bit system registers to GCC, this patch also introduces the Guarded Control Stack (GCS) `+gcs' architecture modifier flag, allowing the inclusion of the novel GCS system registers which are now supported and also present in the `aarch64-sys-regs.def' system register database. Victor Do Nascimento (5): aarch64: Add march flags for +the and +d128 arch extensions aarch64: Add support for GCS system registers with the +gcs modifier aarch64: Sync `aarch64-sys-regs.def' with Binutils. aarch64: Implement 128-bit extension to ACLE sysreg r/w builtins aarch64: Add rsr128 and wsr128 ACLE tests gcc/config/aarch64/aarch64-arches.def | 2 + gcc/config/aarch64/aarch64-builtins.cc | 50 ++++++++++++++++--- gcc/config/aarch64/aarch64-c.cc | 1 + .../aarch64/aarch64-option-extensions.def | 6 +++ gcc/config/aarch64/aarch64-protos.h | 2 +- gcc/config/aarch64/aarch64-sys-regs.def | 30 +++++++---- gcc/config/aarch64/aarch64.cc | 9 +++- gcc/config/aarch64/aarch64.h | 21 ++++++++ gcc/config/aarch64/aarch64.md | 18 +++++++ gcc/config/aarch64/arm_acle.h | 11 ++++ gcc/doc/invoke.texi | 8 +++ gcc/testsuite/gcc.target/aarch64/acle/rwsr.c | 32 ++++++++++++ 12 files changed, 170 insertions(+), 20 deletions(-) -- 2.42.0