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-rw-r--r--Documentation/arch/arm64/booting.rst11
-rw-r--r--Documentation/arch/arm64/elf_hwcaps.rst4
-rw-r--r--Documentation/arch/arm64/silicon-errata.rst2
-rw-r--r--Documentation/arch/arm64/sme.rst14
4 files changed, 19 insertions, 12 deletions
diff --git a/Documentation/arch/arm64/booting.rst b/Documentation/arch/arm64/booting.rst
index 2f666a7c303c..e4f953839f71 100644
--- a/Documentation/arch/arm64/booting.rst
+++ b/Documentation/arch/arm64/booting.rst
@@ -466,6 +466,17 @@ Before jumping into the kernel, the following conditions must be met:
- HDFGWTR2_EL2.nPMICFILTR_EL0 (bit 3) must be initialised to 0b1.
- HDFGWTR2_EL2.nPMUACR_EL1 (bit 4) must be initialised to 0b1.
+ For CPUs with SPE data source filtering (FEAT_SPE_FDS):
+
+ - If EL3 is present:
+
+ - MDCR_EL3.EnPMS3 (bit 42) must be initialised to 0b1.
+
+ - If the kernel is entered at EL1 and EL2 is present:
+
+ - HDFGRTR2_EL2.nPMSDSFR_EL1 (bit 19) must be initialised to 0b1.
+ - HDFGWTR2_EL2.nPMSDSFR_EL1 (bit 19) must be initialised to 0b1.
+
For CPUs with Memory Copy and Memory Set instructions (FEAT_MOPS):
- If the kernel is entered at EL1 and EL2 is present:
diff --git a/Documentation/arch/arm64/elf_hwcaps.rst b/Documentation/arch/arm64/elf_hwcaps.rst
index f58ada4d6cb2..a15df4956849 100644
--- a/Documentation/arch/arm64/elf_hwcaps.rst
+++ b/Documentation/arch/arm64/elf_hwcaps.rst
@@ -441,6 +441,10 @@ HWCAP3_MTE_FAR
HWCAP3_MTE_STORE_ONLY
Functionality implied by ID_AA64PFR2_EL1.MTESTOREONLY == 0b0001.
+HWCAP3_LSFE
+ Functionality implied by ID_AA64ISAR3_EL1.LSFE == 0b0001
+
+
4. Unused AT_HWCAP bits
-----------------------
diff --git a/Documentation/arch/arm64/silicon-errata.rst b/Documentation/arch/arm64/silicon-errata.rst
index b18ef4064bc0..a7ec57060f64 100644
--- a/Documentation/arch/arm64/silicon-errata.rst
+++ b/Documentation/arch/arm64/silicon-errata.rst
@@ -200,6 +200,8 @@ stable kernels.
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Neoverse-V3 | #3312417 | ARM64_ERRATUM_3194386 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Neoverse-V3AE | #3312417 | ARM64_ERRATUM_3194386 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | MMU-500 | #841119,826419 | ARM_SMMU_MMU_500_CPRE_ERRATA|
| | | #562869,1047329 | |
+----------------+-----------------+-----------------+-----------------------------+
diff --git a/Documentation/arch/arm64/sme.rst b/Documentation/arch/arm64/sme.rst
index 4cb38330e704..583f2ee9cb97 100644
--- a/Documentation/arch/arm64/sme.rst
+++ b/Documentation/arch/arm64/sme.rst
@@ -81,17 +81,7 @@ The ZA matrix is square with each side having as many bytes as a streaming
mode SVE vector.
-3. Sharing of streaming and non-streaming mode SVE state
----------------------------------------------------------
-
-It is implementation defined which if any parts of the SVE state are shared
-between streaming and non-streaming modes. When switching between modes
-via software interfaces such as ptrace if no register content is provided as
-part of switching no state will be assumed to be shared and everything will
-be zeroed.
-
-
-4. System call behaviour
+3. System call behaviour
-------------------------
* On syscall PSTATE.ZA is preserved, if PSTATE.ZA==1 then the contents of the
@@ -112,7 +102,7 @@ be zeroed.
exceptions for execve() described in section 6.
-5. Signal handling
+4. Signal handling
-------------------
* Signal handlers are invoked with PSTATE.SM=0, PSTATE.ZA=0, and TPIDR2_EL0=0.