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authorSuzuki K Poulose <suzuki.poulose@arm.com>2017-03-14 18:13:25 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2017-03-20 16:29:28 +0000
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arm64: v8.3: Support for Javascript conversion instruction
ARMv8.3 adds support for a new instruction to perform conversion from double precision floating point to integer to match the architected behaviour of the equivalent Javascript conversion. Expose the availability via HWCAP and MRS emulation. Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'Documentation/arm64')
-rw-r--r--Documentation/arm64/cpu-feature-registers.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/arm64/cpu-feature-registers.txt b/Documentation/arm64/cpu-feature-registers.txt
index 61ca21ebef1a..5b279dcee9c6 100644
--- a/Documentation/arm64/cpu-feature-registers.txt
+++ b/Documentation/arm64/cpu-feature-registers.txt
@@ -169,6 +169,14 @@ infrastructure:
as available on the CPU where it is fetched and is not a system
wide safe value.
+ 4) ID_AA64ISAR1_EL1 - Instruction set attribute register 1
+
+ x--------------------------------------------------x
+ | Name | bits | visible |
+ |--------------------------------------------------|
+ | JSCVT | [15-12] | y |
+ x--------------------------------------------------x
+
Appendix I: Example
---------------------------