From: Victor Do Nascimento <victor.donascimento@arm.com>
To: <gcc-patches@gcc.gnu.org>
Cc: <kyrylo.tkachov@arm.com>, <richard.sandiford@arm.com>,
<Richard.Earnshaw@arm.com>,
Victor Do Nascimento <victor.donascimento@arm.com>
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 [thread overview]
Message-ID: <20231128155609.198744-1-victor.donascimento@arm.com> (raw)
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
next reply other threads:[~2023-11-28 15:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-28 15:55 Victor Do Nascimento [this message]
2023-11-28 15:55 ` [PATCH v2 1/5] aarch64: Add march flags for +the and +d128 arch extensions Victor Do Nascimento
2023-11-28 15:55 ` [PATCH v2 2/5] aarch64: Add support for GCS system registers with the +gcs modifier Victor Do Nascimento
2023-11-28 15:55 ` [PATCH v2 3/5] aarch64: Sync `aarch64-sys-regs.def' with Binutils Victor Do Nascimento
2023-11-28 16:40 ` Kyrylo Tkachov
2023-11-28 15:55 ` [PATCH v2 4/5] aarch64: Implement 128-bit extension to ACLE sysreg r/w builtins Victor Do Nascimento
2023-11-28 15:55 ` [PATCH v2 5/5] aarch64: Add rsr128 and wsr128 ACLE tests Victor Do Nascimento
2023-11-28 22:46 ` [PATCH v2 0/5] aarch64: Add Armv9.4-a 128-bit system-register read/write support Richard Sandiford
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