diff options
Diffstat (limited to 'Documentation/arm64')
| -rw-r--r-- | Documentation/arm64/booting.rst | 3 | ||||
| -rw-r--r-- | Documentation/arm64/cpu-feature-registers.rst | 4 | ||||
| -rw-r--r-- | Documentation/arm64/elf_hwcaps.rst | 67 | ||||
| -rw-r--r-- | Documentation/arm64/silicon-errata.rst | 8 |
4 files changed, 50 insertions, 32 deletions
diff --git a/Documentation/arm64/booting.rst b/Documentation/arm64/booting.rst index d3f3a60fbf25..5d78a6f5b0ae 100644 --- a/Documentation/arm64/booting.rst +++ b/Documentation/arm64/booting.rst @@ -213,6 +213,9 @@ Before jumping into the kernel, the following conditions must be met: - ICC_SRE_EL3.Enable (bit 3) must be initialiased to 0b1. - ICC_SRE_EL3.SRE (bit 0) must be initialised to 0b1. + - ICC_CTLR_EL3.PMHE (bit 6) must be set to the same value across + all CPUs the kernel is executing on, and must stay constant + for the lifetime of the kernel. - If the kernel is entered at EL1: diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst index b86828f86e39..b6e44884e3ad 100644 --- a/Documentation/arm64/cpu-feature-registers.rst +++ b/Documentation/arm64/cpu-feature-registers.rst @@ -200,6 +200,10 @@ infrastructure: +------------------------------+---------+---------+ | Name | bits | visible | +------------------------------+---------+---------+ + | SB | [39-36] | y | + +------------------------------+---------+---------+ + | FRINTTS | [35-32] | y | + +------------------------------+---------+---------+ | GPI | [31-28] | y | +------------------------------+---------+---------+ | GPA | [27-24] | y | diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst index 91f79529c58c..7fa3d215ae6a 100644 --- a/Documentation/arm64/elf_hwcaps.rst +++ b/Documentation/arm64/elf_hwcaps.rst @@ -119,10 +119,6 @@ HWCAP_LRCPC HWCAP_DCPOP Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0001. -HWCAP2_DCPODP - - Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0010. - HWCAP_SHA3 Functionality implied by ID_AA64ISAR0_EL1.SHA3 == 0b0001. @@ -141,30 +137,6 @@ HWCAP_SHA512 HWCAP_SVE Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001. -HWCAP2_SVE2 - - Functionality implied by ID_AA64ZFR0_EL1.SVEVer == 0b0001. - -HWCAP2_SVEAES - - Functionality implied by ID_AA64ZFR0_EL1.AES == 0b0001. - -HWCAP2_SVEPMULL - - Functionality implied by ID_AA64ZFR0_EL1.AES == 0b0010. - -HWCAP2_SVEBITPERM - - Functionality implied by ID_AA64ZFR0_EL1.BitPerm == 0b0001. - -HWCAP2_SVESHA3 - - Functionality implied by ID_AA64ZFR0_EL1.SHA3 == 0b0001. - -HWCAP2_SVESM4 - - Functionality implied by ID_AA64ZFR0_EL1.SM4 == 0b0001. - HWCAP_ASIMDFHM Functionality implied by ID_AA64ISAR0_EL1.FHM == 0b0001. @@ -180,13 +152,12 @@ HWCAP_ILRCPC HWCAP_FLAGM Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0001. -HWCAP2_FLAGM2 - - Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0010. - HWCAP_SSBS Functionality implied by ID_AA64PFR1_EL1.SSBS == 0b0010. +HWCAP_SB + Functionality implied by ID_AA64ISAR1_EL1.SB == 0b0001. + HWCAP_PACA Functionality implied by ID_AA64ISAR1_EL1.APA == 0b0001 or ID_AA64ISAR1_EL1.API == 0b0001, as described by @@ -197,6 +168,38 @@ HWCAP_PACG ID_AA64ISAR1_EL1.GPI == 0b0001, as described by Documentation/arm64/pointer-authentication.rst. +HWCAP2_DCPODP + + Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0010. + +HWCAP2_SVE2 + + Functionality implied by ID_AA64ZFR0_EL1.SVEVer == 0b0001. + +HWCAP2_SVEAES + + Functionality implied by ID_AA64ZFR0_EL1.AES == 0b0001. + +HWCAP2_SVEPMULL + + Functionality implied by ID_AA64ZFR0_EL1.AES == 0b0010. + +HWCAP2_SVEBITPERM + + Functionality implied by ID_AA64ZFR0_EL1.BitPerm == 0b0001. + +HWCAP2_SVESHA3 + + Functionality implied by ID_AA64ZFR0_EL1.SHA3 == 0b0001. + +HWCAP2_SVESM4 + + Functionality implied by ID_AA64ZFR0_EL1.SM4 == 0b0001. + +HWCAP2_FLAGM2 + + Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0010. + HWCAP2_FRINT Functionality implied by ID_AA64ISAR1_EL1.FRINTTS == 0b0001. diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst index 17ea3fecddaa..899a72570282 100644 --- a/Documentation/arm64/silicon-errata.rst +++ b/Documentation/arm64/silicon-errata.rst @@ -70,8 +70,12 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A57 | #834220 | ARM64_ERRATUM_834220 | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Cortex-A57 | #1319537 | ARM64_ERRATUM_1319367 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A72 | #853709 | N/A | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Cortex-A72 | #1319367 | ARM64_ERRATUM_1319367 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A73 | #858921 | ARM64_ERRATUM_858921 | +----------------+-----------------+-----------------+-----------------------------+ | ARM | Cortex-A55 | #1024718 | ARM64_ERRATUM_1024718 | @@ -88,6 +92,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | ARM | Neoverse-N1 | #1349291 | N/A | +----------------+-----------------+-----------------+-----------------------------+ +| ARM | Neoverse-N1 | #1542419 | ARM64_ERRATUM_1542419 | ++----------------+-----------------+-----------------+-----------------------------+ | ARM | MMU-500 | #841119,826419 | N/A | +----------------+-----------------+-----------------+-----------------------------+ +----------------+-----------------+-----------------+-----------------------------+ @@ -107,6 +113,8 @@ stable kernels. +----------------+-----------------+-----------------+-----------------------------+ | Cavium | ThunderX2 SMMUv3| #126 | N/A | +----------------+-----------------+-----------------+-----------------------------+ +| Cavium | ThunderX2 Core | #219 | CAVIUM_TX2_ERRATUM_219 | ++----------------+-----------------+-----------------+-----------------------------+ +----------------+-----------------+-----------------+-----------------------------+ | Freescale/NXP | LS2080A/LS1043A | A-008585 | FSL_ERRATUM_A008585 | +----------------+-----------------+-----------------+-----------------------------+ |