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authorMark Brown <broonie@kernel.org>2023-01-16 16:04:48 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2023-01-20 12:23:07 +0000
commit7d5d8601e4577c918fdb5fa922c634a73557ac0f (patch)
treec02a9e4de75a72fe0ee10ee92e3812fd7a2fefbc /Documentation/arm64
parentf90b529bcbe57c66da2b6a0d3c7c81e8567af63d (diff)
arm64/sme: Add hwcaps for SME 2 and 2.1 features
In order to allow userspace to discover the presence of the new SME features add hwcaps for them. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20221208-arm64-sme2-v4-13-f2fa0aef982f@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'Documentation/arm64')
-rw-r--r--Documentation/arm64/elf_hwcaps.rst18
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index 6fed84f935df..8a9d4bf7daf4 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -284,6 +284,24 @@ HWCAP2_RPRFM
HWCAP2_SVE2P1
Functionality implied by ID_AA64ZFR0_EL1.SVEver == 0b0010.
+HWCAP2_SME2
+ Functionality implied by ID_AA64SMFR0_EL1.SMEver == 0b0001.
+
+HWCAP2_SME2P1
+ Functionality implied by ID_AA64SMFR0_EL1.SMEver == 0b0010.
+
+HWCAP2_SMEI16I32
+ Functionality implied by ID_AA64SMFR0_EL1.I16I32 == 0b0101
+
+HWCAP2_SMEBI32I32
+ Functionality implied by ID_AA64SMFR0_EL1.BI32I32 == 0b1
+
+HWCAP2_SMEB16B16
+ Functionality implied by ID_AA64SMFR0_EL1.B16B16 == 0b1
+
+HWCAP2_SMEF16F16
+ Functionality implied by ID_AA64SMFR0_EL1.F16F16 == 0b1
+
4. Unused AT_HWCAP bits
-----------------------