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authorTakashi Iwai <tiwai@suse.de>2022-12-22 11:11:48 +0300
committerTakashi Iwai <tiwai@suse.de>2022-12-22 11:11:48 +0300
commit2d78eb0342dd2c9c5cde9ae9ada1d33f189a858b (patch)
treef711bc9cab45f4963e4883ef15ff4c54a6cbc12e /Documentation/arm64/cpu-feature-registers.rst
parentb47068b4aa53a57552398e3f60d0ed1918700c2b (diff)
parentee0b089d660021792e4ab4dda191b097ce1e964f (diff)
downloadlinux-2d78eb0342dd2c9c5cde9ae9ada1d33f189a858b.tar.xz
Merge branch 'for-next' into for-linus
Diffstat (limited to 'Documentation/arm64/cpu-feature-registers.rst')
-rw-r--r--Documentation/arm64/cpu-feature-registers.rst38
1 files changed, 37 insertions, 1 deletions
diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index 04ba83e1965f..c7adc7897df6 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -92,7 +92,7 @@ operation if the source belongs to the supported system register space.
The infrastructure emulates only the following system register space::
- Op0=3, Op1=0, CRn=0, CRm=0,4,5,6,7
+ Op0=3, Op1=0, CRn=0, CRm=0,2,3,4,5,6,7
(See Table C5-6 'System instruction encodings for non-Debug System
register accesses' in ARMv8 ARM DDI 0487A.h, for the list of
@@ -293,6 +293,42 @@ infrastructure:
| WFXT | [3-0] | y |
+------------------------------+---------+---------+
+ 10) MVFR0_EL1 - AArch32 Media and VFP Feature Register 0
+
+ +------------------------------+---------+---------+
+ | Name | bits | visible |
+ +------------------------------+---------+---------+
+ | FPDP | [11-8] | y |
+ +------------------------------+---------+---------+
+
+ 11) MVFR1_EL1 - AArch32 Media and VFP Feature Register 1
+
+ +------------------------------+---------+---------+
+ | Name | bits | visible |
+ +------------------------------+---------+---------+
+ | SIMDFMAC | [31-28] | y |
+ +------------------------------+---------+---------+
+ | SIMDSP | [19-16] | y |
+ +------------------------------+---------+---------+
+ | SIMDInt | [15-12] | y |
+ +------------------------------+---------+---------+
+ | SIMDLS | [11-8] | y |
+ +------------------------------+---------+---------+
+
+ 12) ID_ISAR5_EL1 - AArch32 Instruction Set Attribute Register 5
+
+ +------------------------------+---------+---------+
+ | Name | bits | visible |
+ +------------------------------+---------+---------+
+ | CRC32 | [19-16] | y |
+ +------------------------------+---------+---------+
+ | SHA2 | [15-12] | y |
+ +------------------------------+---------+---------+
+ | SHA1 | [11-8] | y |
+ +------------------------------+---------+---------+
+ | AES | [7-4] | y |
+ +------------------------------+---------+---------+
+
Appendix I: Example
-------------------