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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Nov 2023 10:32:45.5635 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f0967712-8638-4fbd-4c48-08dbdf7ce18f 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: AM4PEPF00027A60.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI0PR08MB10741 X-Spam-Status: No, score=-12.5 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,GIT_PATCH_0,KAM_DMARC_NONE,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE,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 List-Id: Given the introduction of optional 128-bit page table descriptor and translation hardening extension support with the Arm9.4-a architecture, this introduces the relevant flags to enable the reading and writing of 128-bit system registers. The `+d128' -march modifier enables the use of the following ACLE builtin functions: * __uint128_t __arm_rsr128(const char *special_register); * void __arm_wsr128(const char *special_register, __uint128_t value); and defines the __ARM_FEATURE_SYSREG128 macro to 1. Finally, the `rcwmask_el1' and `rcwsmask_el1' 128-bit system register implementations are also reliant on the enablement of the `+the' flag, which is thus also implemented in this patch. gcc/ChangeLog: * config/aarch64/aarch64-arches.def (armv8.9-a): New. (armv9.4-a): Likewise. * config/aarch64/aarch64-option-extensions.def (d128): Likewise. (the): Likewise. * config/aarch64/aarch64.h (AARCH64_ISA_V9_4A): Likewise. (AARCH64_ISA_V8_9A): Likewise. (TARGET_ARMV9_4): Likewise. (AARCH64_ISA_D128): Likewise. (AARCH64_ISA_THE): Likewise. (TARGET_D128): Likewise. * doc/invoke.texi (AArch64 Options): Document new -march flags and extensions. --- gcc/config/aarch64/aarch64-arches.def | 2 ++ gcc/config/aarch64/aarch64-c.cc | 1 + gcc/config/aarch64/aarch64-option-extensions.def | 4 ++++ gcc/config/aarch64/aarch64.h | 15 +++++++++++++++ gcc/doc/invoke.texi | 6 ++++++ 5 files changed, 28 insertions(+) diff --git a/gcc/config/aarch64/aarch64-arches.def b/gcc/config/aarch64/aarch64-arches.def index 7ae92aa8e98..becccb801d0 100644 --- a/gcc/config/aarch64/aarch64-arches.def +++ b/gcc/config/aarch64/aarch64-arches.def @@ -39,10 +39,12 @@ AARCH64_ARCH("armv8.5-a", generic, V8_5A, 8, (V8_4A, SB, SSBS, PR AARCH64_ARCH("armv8.6-a", generic, V8_6A, 8, (V8_5A, I8MM, BF16)) AARCH64_ARCH("armv8.7-a", generic, V8_7A, 8, (V8_6A, LS64)) AARCH64_ARCH("armv8.8-a", generic, V8_8A, 8, (V8_7A, MOPS)) +AARCH64_ARCH("armv8.9-a", generic, V8_9A, 8, (V8_8A)) AARCH64_ARCH("armv8-r", generic, V8R , 8, (V8_4A)) AARCH64_ARCH("armv9-a", generic, V9A , 9, (V8_5A, SVE2)) AARCH64_ARCH("armv9.1-a", generic, V9_1A, 9, (V8_6A, V9A)) AARCH64_ARCH("armv9.2-a", generic, V9_2A, 9, (V8_7A, V9_1A)) AARCH64_ARCH("armv9.3-a", generic, V9_3A, 9, (V8_8A, V9_2A)) +AARCH64_ARCH("armv9.4-a", generic, V9_4A, 9, (V8_9A, V9_3A)) #undef AARCH64_ARCH diff --git a/gcc/config/aarch64/aarch64-c.cc b/gcc/config/aarch64/aarch64-c.cc index be8b7236cf9..cacf8e8ed25 100644 --- a/gcc/config/aarch64/aarch64-c.cc +++ b/gcc/config/aarch64/aarch64-c.cc @@ -206,6 +206,7 @@ aarch64_update_cpp_builtins (cpp_reader *pfile) aarch64_def_or_undef (TARGET_LS64, "__ARM_FEATURE_LS64", pfile); aarch64_def_or_undef (AARCH64_ISA_RCPC, "__ARM_FEATURE_RCPC", pfile); + aarch64_def_or_undef (TARGET_D128, "__ARM_FEATURE_SYSREG128", pfile); /* Not for ACLE, but required to keep "float.h" correct if we switch target between implementations that do or do not support ARMv8.2-A diff --git a/gcc/config/aarch64/aarch64-option-extensions.def b/gcc/config/aarch64/aarch64-option-extensions.def index 825f3bf7758..da31f7c32d1 100644 --- a/gcc/config/aarch64/aarch64-option-extensions.def +++ b/gcc/config/aarch64/aarch64-option-extensions.def @@ -151,4 +151,8 @@ AARCH64_OPT_EXTENSION("mops", MOPS, (), (), (), "") AARCH64_OPT_EXTENSION("cssc", CSSC, (), (), (), "cssc") +AARCH64_OPT_EXTENSION("d128", D128, (), (), (), "d128") + +AARCH64_OPT_EXTENSION("the", THE, (), (), (), "the") + #undef AARCH64_OPT_EXTENSION diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h index 84e6f79ca83..1b3c800ec89 100644 --- a/gcc/config/aarch64/aarch64.h +++ b/gcc/config/aarch64/aarch64.h @@ -219,13 +219,17 @@ enum class aarch64_feature : unsigned char { #define AARCH64_ISA_PAUTH (aarch64_isa_flags & AARCH64_FL_PAUTH) #define AARCH64_ISA_V8_7A (aarch64_isa_flags & AARCH64_FL_V8_7A) #define AARCH64_ISA_V8_8A (aarch64_isa_flags & AARCH64_FL_V8_8A) +#define AARCH64_ISA_V8_9A (aarch64_isa_flags & AARCH64_FL_V8_9A) #define AARCH64_ISA_V9A (aarch64_isa_flags & AARCH64_FL_V9A) #define AARCH64_ISA_V9_1A (aarch64_isa_flags & AARCH64_FL_V9_1A) #define AARCH64_ISA_V9_2A (aarch64_isa_flags & AARCH64_FL_V9_2A) #define AARCH64_ISA_V9_3A (aarch64_isa_flags & AARCH64_FL_V9_3A) +#define AARCH64_ISA_V9_4A (aarch64_isa_flags & AARCH64_FL_V9_4A) #define AARCH64_ISA_MOPS (aarch64_isa_flags & AARCH64_FL_MOPS) #define AARCH64_ISA_LS64 (aarch64_isa_flags & AARCH64_FL_LS64) #define AARCH64_ISA_CSSC (aarch64_isa_flags & AARCH64_FL_CSSC) +#define AARCH64_ISA_D128 (aarch64_isa_flags & AARCH64_FL_D128) +#define AARCH64_ISA_THE (aarch64_isa_flags & AARCH64_FL_THE) /* AARCH64_FL options necessary for system register implementation. */ @@ -388,6 +392,17 @@ enum class aarch64_feature : unsigned char { /* ARMv8.1-A Adv.SIMD support. */ #define TARGET_SIMD_RDMA (TARGET_SIMD && AARCH64_ISA_RDMA) +/* Armv9.4-A features. */ +#define TARGET_ARMV9_4 (AARCH64_ISA_V9_4A) + +/* 128-bit System Registers and Instructions from Armv9.4-a are enabled + through +d128. */ +#define TARGET_D128 (AARCH64_ISA_D128) + +/* Armv8.9-A/9.4-A Translation Hardening Extension system registers are + enabled through +the. */ +#define TARGET_THE (AARCH64_ISA_THE) + /* Standard register usage. */ /* 31 64-bit general purpose registers R0-R30: diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 6e776a0faa1..88327ce9681 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -20722,10 +20722,12 @@ and the features that they enable by default: @item @samp{armv8.6-a} @tab Armv8.6-A @tab @samp{armv8.5-a}, @samp{+bf16}, @samp{+i8mm} @item @samp{armv8.7-a} @tab Armv8.7-A @tab @samp{armv8.6-a}, @samp{+ls64} @item @samp{armv8.8-a} @tab Armv8.8-a @tab @samp{armv8.7-a}, @samp{+mops} +@item @samp{armv8.9-a} @tab Armv8.9-a @tab @samp{armv8.8-a} @item @samp{armv9-a} @tab Armv9-A @tab @samp{armv8.5-a}, @samp{+sve}, @samp{+sve2} @item @samp{armv9.1-a} @tab Armv9.1-A @tab @samp{armv9-a}, @samp{+bf16}, @samp{+i8mm} @item @samp{armv9.2-a} @tab Armv9.2-A @tab @samp{armv9.1-a}, @samp{+ls64} @item @samp{armv9.3-a} @tab Armv9.3-A @tab @samp{armv9.2-a}, @samp{+mops} +@item @samp{armv9.4-a} @tab Armv9.4-A @tab @samp{armv9.3-a} @item @samp{armv8-r} @tab Armv8-R @tab @samp{armv8-r} @end multitable @@ -21028,6 +21030,10 @@ Enable the Flag Manipulation instructions Extension. Enable the Pointer Authentication Extension. @item cssc Enable the Common Short Sequence Compression instructions. +@item d128 +Enable support for 128-bit system register read/write instructions. +@item the +Enable support for Armv8.9-a/9.4-a translation hardening extension. @end table -- 2.41.0