docs: arm64: Move arm64 documentation under Documentation/arch/

Architecture-specific documentation is being moved into Documentation/arch/
as a way of cleaning up the top-level documentation directory and making
the docs hierarchy more closely match the source hierarchy.  Move
Documentation/arm64 into arch/ (along with the Chinese equvalent
translations) and fix up documentation references.

Cc: Will Deacon <will@kernel.org>
Cc: Alex Shi <alexs@kernel.org>
Cc: Hu Haowen <src.res@email.cn>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Yantengsi <siyanteng@loongson.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

1 files changed, 0 insertions, 216 deletions

diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst
deleted file mode 100644
index 9e311bc43e05..000000000000
--- a/Documentation/arm64/silicon-errata.rst
+++ /dev/null
@@ -1,216 +0,0 @@
-=======================================
-Silicon Errata and Software Workarounds
-=======================================
-
-Author: Will Deacon <will.deacon@arm.com>
-
-Date  : 27 November 2015
-
-It is an unfortunate fact of life that hardware is often produced with
-so-called "errata", which can cause it to deviate from the architecture
-under specific circumstances.  For hardware produced by ARM, these
-errata are broadly classified into the following categories:
-
-  ==========  ========================================================
-  Category A  A critical error without a viable workaround.
-  Category B  A significant or critical error with an acceptable
-              workaround.
-  Category C  A minor error that is not expected to occur under normal
-              operation.
-  ==========  ========================================================
-
-For more information, consult one of the "Software Developers Errata
-Notice" documents available on infocenter.arm.com (registration
-required).
-
-As far as Linux is concerned, Category B errata may require some special
-treatment in the operating system. For example, avoiding a particular
-sequence of code, or configuring the processor in a particular way. A
-less common situation may require similar actions in order to declassify
-a Category A erratum into a Category C erratum. These are collectively
-known as "software workarounds" and are only required in the minority of
-cases (e.g. those cases that both require a non-secure workaround *and*
-can be triggered by Linux).
-
-For software workarounds that may adversely impact systems unaffected by
-the erratum in question, a Kconfig entry is added under "Kernel
-Features" -> "ARM errata workarounds via the alternatives framework".
-These are enabled by default and patched in at runtime when an affected
-CPU is detected. For less-intrusive workarounds, a Kconfig option is not
-available and the code is structured (preferably with a comment) in such
-a way that the erratum will not be hit.
-
-This approach can make it slightly onerous to determine exactly which
-errata are worked around in an arbitrary kernel source tree, so this
-file acts as a registry of software workarounds in the Linux Kernel and
-will be updated when new workarounds are committed and backported to
-stable kernels.
-
-+----------------+-----------------+-----------------+-----------------------------+
-| Implementor    | Component       | Erratum ID      | Kconfig                     |
-+================+=================+=================+=============================+
-| Allwinner      | A64/R18         | UNKNOWN1        | SUN50I_ERRATUM_UNKNOWN1     |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A510     | #2457168        | ARM64_ERRATUM_2457168       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A510     | #2064142        | ARM64_ERRATUM_2064142       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A510     | #2038923        | ARM64_ERRATUM_2038923       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A510     | #1902691        | ARM64_ERRATUM_1902691       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A53      | #826319         | ARM64_ERRATUM_826319        |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A53      | #827319         | ARM64_ERRATUM_827319        |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A53      | #824069         | ARM64_ERRATUM_824069        |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A53      | #819472         | ARM64_ERRATUM_819472        |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A53      | #845719         | ARM64_ERRATUM_845719        |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A53      | #843419         | ARM64_ERRATUM_843419        |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A55      | #1024718        | ARM64_ERRATUM_1024718       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A55      | #1530923        | ARM64_ERRATUM_1530923       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A55      | #2441007        | ARM64_ERRATUM_2441007       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A57      | #832075         | ARM64_ERRATUM_832075        |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A57      | #852523         | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A57      | #834220         | ARM64_ERRATUM_834220        |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A57      | #1319537        | ARM64_ERRATUM_1319367       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A57      | #1742098        | ARM64_ERRATUM_1742098       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A72      | #853709         | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A72      | #1319367        | ARM64_ERRATUM_1319367       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A72      | #1655431        | ARM64_ERRATUM_1742098       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A73      | #858921         | ARM64_ERRATUM_858921        |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A76      | #1188873,1418040| ARM64_ERRATUM_1418040       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A76      | #1165522        | ARM64_ERRATUM_1165522       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A76      | #1286807        | ARM64_ERRATUM_1286807       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A76      | #1463225        | ARM64_ERRATUM_1463225       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A77      | #1508412        | ARM64_ERRATUM_1508412       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A510     | #2051678        | ARM64_ERRATUM_2051678       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A510     | #2077057        | ARM64_ERRATUM_2077057       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A510     | #2441009        | ARM64_ERRATUM_2441009       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A510     | #2658417        | ARM64_ERRATUM_2658417       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A710     | #2119858        | ARM64_ERRATUM_2119858       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A710     | #2054223        | ARM64_ERRATUM_2054223       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A710     | #2224489        | ARM64_ERRATUM_2224489       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-A715     | #2645198        | ARM64_ERRATUM_2645198       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-X2       | #2119858        | ARM64_ERRATUM_2119858       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Cortex-X2       | #2224489        | ARM64_ERRATUM_2224489       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Neoverse-N1     | #1188873,1418040| ARM64_ERRATUM_1418040       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Neoverse-N1     | #1349291        | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Neoverse-N1     | #1542419        | ARM64_ERRATUM_1542419       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Neoverse-N2     | #2139208        | ARM64_ERRATUM_2139208       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Neoverse-N2     | #2067961        | ARM64_ERRATUM_2067961       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | Neoverse-N2     | #2253138        | ARM64_ERRATUM_2253138       |
-+----------------+-----------------+-----------------+-----------------------------+
-| ARM            | MMU-500         | #841119,826419  | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Broadcom       | Brahma-B53      | N/A             | ARM64_ERRATUM_845719        |
-+----------------+-----------------+-----------------+-----------------------------+
-| Broadcom       | Brahma-B53      | N/A             | ARM64_ERRATUM_843419        |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX ITS    | #22375,24313    | CAVIUM_ERRATUM_22375        |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX ITS    | #23144          | CAVIUM_ERRATUM_23144        |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX GICv3  | #23154,38545    | CAVIUM_ERRATUM_23154        |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX GICv3  | #38539          | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX Core   | #27456          | CAVIUM_ERRATUM_27456        |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX Core   | #30115          | CAVIUM_ERRATUM_30115        |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX SMMUv2 | #27704          | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX2 SMMUv3| #74             | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX2 SMMUv3| #126            | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-| Cavium         | ThunderX2 Core  | #219            | CAVIUM_TX2_ERRATUM_219      |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Marvell        | ARM-MMU-500     | #582743         | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| NVIDIA         | Carmel Core     | N/A             | NVIDIA_CARMEL_CNP_ERRATUM   |
-+----------------+-----------------+-----------------+-----------------------------+
-| NVIDIA         | T241 GICv3/4.x  | T241-FABRIC-4   | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Freescale/NXP  | LS2080A/LS1043A | A-008585        | FSL_ERRATUM_A008585         |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon      | Hip0{5,6,7}     | #161010101      | HISILICON_ERRATUM_161010101 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon      | Hip0{6,7}       | #161010701      | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon      | Hip0{6,7}       | #161010803      | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon      | Hip07           | #161600802      | HISILICON_ERRATUM_161600802 |
-+----------------+-----------------+-----------------+-----------------------------+
-| Hisilicon      | Hip08 SMMU PMCG | #162001800      | N/A                         |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo/Falkor v1  | E1003           | QCOM_FALKOR_ERRATUM_1003    |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo/Falkor v1  | E1009           | QCOM_FALKOR_ERRATUM_1009    |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | QDF2400 ITS     | E0065           | QCOM_QDF2400_ERRATUM_0065   |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Falkor v{1,2}   | E1041           | QCOM_FALKOR_ERRATUM_1041    |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Gold    | N/A             | ARM64_ERRATUM_1463225       |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Gold    | N/A             | ARM64_ERRATUM_1418040       |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Silver  | N/A             | ARM64_ERRATUM_1530923       |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Silver  | N/A             | ARM64_ERRATUM_1024718       |
-+----------------+-----------------+-----------------+-----------------------------+
-| Qualcomm Tech. | Kryo4xx Gold    | N/A             | ARM64_ERRATUM_1286807       |
-+----------------+-----------------+-----------------+-----------------------------+
-+----------------+-----------------+-----------------+-----------------------------+
-| Rockchip       | RK3588          | #3588001        | ROCKCHIP_ERRATUM_3588001    |
-+----------------+-----------------+-----------------+-----------------------------+
-
-+----------------+-----------------+-----------------+-----------------------------+
-| Fujitsu        | A64FX           | E#010001        | FUJITSU_ERRATUM_010001      |
-+----------------+-----------------+-----------------+-----------------------------+