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authorMark Brown <broonie@kernel.org>2022-10-17 18:25:17 +0300
committerWill Deacon <will@kernel.org>2022-11-09 20:54:53 +0300
commit939e4649d4fd54b622d08cd57100828df7a82074 (patch)
tree9c666e59473a24b56e452a67607d038dc7ca6908 /Documentation/arm64/elf_hwcaps.rst
parentb0ab73a5479fdf6b42babaccf22b4fa88f5a20a6 (diff)
downloadlinux-939e4649d4fd54b622d08cd57100828df7a82074.tar.xz
arm64/hwcap: Add support for FEAT_RPRFM
FEAT_RPRFM adds a new range prefetch hint within the existing PRFM space for range prefetch hinting. Add a new hwcap to allow userspace to discover support for the new instruction. Signed-off-by: Mark Brown <broonie@kernel.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Link: https://lore.kernel.org/r/20221017152520.1039165-4-broonie@kernel.org Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation/arm64/elf_hwcaps.rst')
-rw-r--r--Documentation/arm64/elf_hwcaps.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index 58197e9ccb6d..a82b2cdff680 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -278,6 +278,9 @@ HWCAP2_SVE_EBF16
HWCAP2_CSSC
Functionality implied by ID_AA64ISAR2_EL1.CSSC == 0b0001.
+HWCAP2_RPRFM
+ Functionality implied by ID_AA64ISAR2_EL1.RPRFM == 0b0001.
+
4. Unused AT_HWCAP bits
-----------------------