docs: arm64: convert docs to ReST and rename to .rst

The documentation is in a format that is very close to ReST format. The conversion is actually: - add blank lines in order to identify paragraphs; - fixing tables markups; - adding some lists markups; - marking literal blocks; - adjust some title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>

docs: arm64: convert docs to ReST and rename to .rst
The documentation is in a format that is very close to ReST format. The conversion is actually: - add blank lines in order to identify paragraphs; - fixing tables markups; - adding some lists markups; - marking literal blocks; - adjust some title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
b693d0b3 · Mauro Carvalho Chehab · Jonathan Corbet · 305a99eb · b693d0b3 · b693d0b3
Commit b693d0b3 authored Jun 12, 2019 by Mauro Carvalho Chehab Committed by Jonathan Corbet Jun 14, 2019
23 changed files
--- a/Documentation/arm64/acpi_object_usage.txt
+++ b/Documentation/arm64/acpi_object_usage.txt
+===========
 ACPI Tables
-----------
+===========
 The expectations of individual ACPI tables are discussed in the list that
 follows.
@@ -11,54 +13,71 @@ outside of the UEFI Forum (see Section 5.2.6 of the specification).
 For ACPI on arm64, tables also fall into the following categories:
-       -- Required: DSDT, FADT, GTDT, MADT, MCFG, RSDP, SPCR, XSDT
+       -  Required: DSDT, FADT, GTDT, MADT, MCFG, RSDP, SPCR, XSDT
-       -- Recommended: BERT, EINJ, ERST, HEST, PCCT, SSDT
+       -  Recommended: BERT, EINJ, ERST, HEST, PCCT, SSDT
-       -- Optional: BGRT, CPEP, CSRT, DBG2, DRTM, ECDT, FACS, FPDT, IORT,
+       -  Optional: BGRT, CPEP, CSRT, DBG2, DRTM, ECDT, FACS, FPDT, IORT,
          MCHI, MPST, MSCT, NFIT, PMTT, RASF, SBST, SLIT, SPMI, SRAT, STAO,
 	  TCPA, TPM2, UEFI, XENV
-       -- Not supported: BOOT, DBGP, DMAR, ETDT, HPET, IBFT, IVRS, LPIT,
+       -  Not supported: BOOT, DBGP, DMAR, ETDT, HPET, IBFT, IVRS, LPIT,
          MSDM, OEMx, PSDT, RSDT, SLIC, WAET, WDAT, WDRT, WPBT
+====== ========================================================================
 Table  Usage for ARMv8 Linux
-----  ----------------------------------------------------------------
+====== ========================================================================
 BERT   Section 18.3 (signature == "BERT")
-       == Boot Error Record Table ==
+       **Boot Error Record Table**
       Must be supplied if RAS support is provided by the platform.  It
       is recommended this table be supplied.
 BOOT   Signature Reserved (signature == "BOOT")
-       == simple BOOT flag table ==
+       **simple BOOT flag table**
       Microsoft only table, will not be supported.
 BGRT   Section 5.2.22 (signature == "BGRT")
-       == Boot Graphics Resource Table ==
+       **Boot Graphics Resource Table**
       Optional, not currently supported, with no real use-case for an
       ARM server.
 CPEP   Section 5.2.18 (signature == "CPEP")
-       == Corrected Platform Error Polling table ==
+       **Corrected Platform Error Polling table**
       Optional, not currently supported, and not recommended until such
       time as ARM-compatible hardware is available, and the specification
       suitably modified.
 CSRT   Signature Reserved (signature == "CSRT")
-       == Core System Resources Table ==
+       **Core System Resources Table**
       Optional, not currently supported.
 DBG2   Signature Reserved (signature == "DBG2")
-       == DeBuG port table 2 ==
+       **DeBuG port table 2**
       License has changed and should be usable.  Optional if used instead
       of earlycon=<device> on the command line.
 DBGP   Signature Reserved (signature == "DBGP")
-       == DeBuG Port table ==
+       **DeBuG Port table**
       Microsoft only table, will not be supported.
 DSDT   Section 5.2.11.1 (signature == "DSDT")
-       == Differentiated System Description Table ==
+       **Differentiated System Description Table**
       A DSDT is required; see also SSDT.
       ACPI tables contain only one DSDT but can contain one or more SSDTs,
@@ -66,22 +85,30 @@ DSDT   Section 5.2.11.1 (signature == "DSDT")
       but cannot modify or replace anything in the DSDT.
 DMAR   Signature Reserved (signature == "DMAR")
-       == DMA Remapping table ==
+       **DMA Remapping table**
       x86 only table, will not be supported.
 DRTM   Signature Reserved (signature == "DRTM")
-       == Dynamic Root of Trust for Measurement table ==
+       **Dynamic Root of Trust for Measurement table**
       Optional, not currently supported.
 ECDT   Section 5.2.16 (signature == "ECDT")
-       == Embedded Controller Description Table ==
+       **Embedded Controller Description Table**
       Optional, not currently supported, but could be used on ARM if and
       only if one uses the GPE_BIT field to represent an IRQ number, since
       there are no GPE blocks defined in hardware reduced mode.  This would
       need to be modified in the ACPI specification.
 EINJ   Section 18.6 (signature == "EINJ")
-       == Error Injection table ==
+       **Error Injection table**
       This table is very useful for testing platform response to error
       conditions; it allows one to inject an error into the system as
       if it had actually occurred.  However, this table should not be
@@ -89,27 +116,35 @@ EINJ   Section 18.6 (signature == "EINJ")
       and executed with the ACPICA tools only during testing.
 ERST   Section 18.5 (signature == "ERST")
-       == Error Record Serialization Table ==
+       **Error Record Serialization Table**
       On a platform supports RAS, this table must be supplied if it is not
       UEFI-based; if it is UEFI-based, this table may be supplied. When this
       table is not present, UEFI run time service will be utilized to save
       and retrieve hardware error information to and from a persistent store.
 ETDT   Signature Reserved (signature == "ETDT")
-       == Event Timer Description Table ==
+       **Event Timer Description Table**
       Obsolete table, will not be supported.
 FACS   Section 5.2.10 (signature == "FACS")
-       == Firmware ACPI Control Structure ==
+       **Firmware ACPI Control Structure**
       It is unlikely that this table will be terribly useful.  If it is
       provided, the Global Lock will NOT be used since it is not part of
       the hardware reduced profile, and only 64-bit address fields will
       be considered valid.
 FADT   Section 5.2.9 (signature == "FACP")
-       == Fixed ACPI Description Table ==
+       **Fixed ACPI Description Table**
       Required for arm64.
       The HW_REDUCED_ACPI flag must be set.  All of the fields that are
       to be ignored when HW_REDUCED_ACPI is set are expected to be set to
       zero.
@@ -118,22 +153,28 @@ FADT   Section 5.2.9 (signature == "FACP")
       used, not FIRMWARE_CTRL.
       If PSCI is used (as is recommended), make sure that ARM_BOOT_ARCH is
-       filled in properly -- that the PSCI_COMPLIANT flag is set and that
+       filled in properly - that the PSCI_COMPLIANT flag is set and that
       PSCI_USE_HVC is set or unset as needed (see table 5-37).
       For the DSDT that is also required, the X_DSDT field is to be used,
       not the DSDT field.
 FPDT   Section 5.2.23 (signature == "FPDT")
-       == Firmware Performance Data Table ==
+       **Firmware Performance Data Table**
       Optional, not currently supported.
 GTDT   Section 5.2.24 (signature == "GTDT")
-       == Generic Timer Description Table ==
+       **Generic Timer Description Table**
       Required for arm64.
 HEST   Section 18.3.2 (signature == "HEST")
-       == Hardware Error Source Table ==
+       **Hardware Error Source Table**
       ARM-specific error sources have been defined; please use those or the
       PCI types such as type 6 (AER Root Port), 7 (AER Endpoint), or 8 (AER
       Bridge), or use type 9 (Generic Hardware Error Source).  Firmware first
@@ -144,122 +185,174 @@ HEST   Section 18.3.2 (signature == "HEST")
       is recommended this table be supplied.
 HPET   Signature Reserved (signature == "HPET")
-       == High Precision Event timer Table ==
+       **High Precision Event timer Table**
       x86 only table, will not be supported.
 IBFT   Signature Reserved (signature == "IBFT")
-       == iSCSI Boot Firmware Table ==
+       **iSCSI Boot Firmware Table**
       Microsoft defined table, support TBD.
 IORT   Signature Reserved (signature == "IORT")
-       == Input Output Remapping Table ==
+       **Input Output Remapping Table**
       arm64 only table, required in order to describe IO topology, SMMUs,
       and GIC ITSs, and how those various components are connected together,
       such as identifying which components are behind which SMMUs/ITSs.
       This table will only be required on certain SBSA platforms (e.g.,
-       when using GICv3-ITS and an SMMU); on SBSA Level 0 platforms, it 
+       when using GICv3-ITS and an SMMU); on SBSA Level 0 platforms, it
       remains optional.
 IVRS   Signature Reserved (signature == "IVRS")
-       == I/O Virtualization Reporting Structure ==
+       **I/O Virtualization Reporting Structure**
       x86_64 (AMD) only table, will not be supported.
 LPIT   Signature Reserved (signature == "LPIT")
-       == Low Power Idle Table ==
+       **Low Power Idle Table**
       x86 only table as of ACPI 5.1; starting with ACPI 6.0, processor
       descriptions and power states on ARM platforms should use the DSDT
       and define processor container devices (_HID ACPI0010, Section 8.4,
       and more specifically 8.4.3 and and 8.4.4).
 MADT   Section 5.2.12 (signature == "APIC")
-       == Multiple APIC Description Table ==
+       **Multiple APIC Description Table**
       Required for arm64.  Only the GIC interrupt controller structures
       should be used (types 0xA - 0xF).
 MCFG   Signature Reserved (signature == "MCFG")
-       == Memory-mapped ConFiGuration space ==
+       **Memory-mapped ConFiGuration space**
       If the platform supports PCI/PCIe, an MCFG table is required.
 MCHI   Signature Reserved (signature == "MCHI")
-       == Management Controller Host Interface table ==
+       **Management Controller Host Interface table**
       Optional, not currently supported.
 MPST   Section 5.2.21 (signature == "MPST")
-       == Memory Power State Table ==
+       **Memory Power State Table**
       Optional, not currently supported.
 MSCT   Section 5.2.19 (signature == "MSCT")
-       == Maximum System Characteristic Table ==
+       **Maximum System Characteristic Table**
       Optional, not currently supported.
 MSDM   Signature Reserved (signature == "MSDM")
-       == Microsoft Data Management table ==
+       **Microsoft Data Management table**
       Microsoft only table, will not be supported.
 NFIT   Section 5.2.25 (signature == "NFIT")
-       == NVDIMM Firmware Interface Table ==
+       **NVDIMM Firmware Interface Table**
       Optional, not currently supported.
 OEMx   Signature of "OEMx" only
-       == OEM Specific Tables ==
+       **OEM Specific Tables**
       All tables starting with a signature of "OEM" are reserved for OEM
       use.  Since these are not meant to be of general use but are limited
       to very specific end users, they are not recommended for use and are
       not supported by the kernel for arm64.
 PCCT   Section 14.1 (signature == "PCCT)
-       == Platform Communications Channel Table ==
+       **Platform Communications Channel Table**
       Recommend for use on arm64; use of PCC is recommended when using CPPC
       to control performance and power for platform processors.
 PMTT   Section 5.2.21.12 (signature == "PMTT")
-       == Platform Memory Topology Table ==
+       **Platform Memory Topology Table**
       Optional, not currently supported.
 PSDT   Section 5.2.11.3 (signature == "PSDT")
-       == Persistent System Description Table ==
+       **Persistent System Description Table**
       Obsolete table, will not be supported.
 RASF   Section 5.2.20 (signature == "RASF")
-       == RAS Feature table ==
+       **RAS Feature table**
       Optional, not currently supported.
 RSDP   Section 5.2.5 (signature == "RSD PTR")
-       == Root System Description PoinTeR ==
+       **Root System Description PoinTeR**
       Required for arm64.
 RSDT   Section 5.2.7 (signature == "RSDT")
-       == Root System Description Table ==
+       **Root System Description Table**
       Since this table can only provide 32-bit addresses, it is deprecated
       on arm64, and will not be used.  If provided, it will be ignored.
 SBST   Section 5.2.14 (signature == "SBST")
-       == Smart Battery Subsystem Table ==
+       **Smart Battery Subsystem Table**
       Optional, not currently supported.
 SLIC   Signature Reserved (signature == "SLIC")
-       == Software LIcensing table ==
+       **Software LIcensing table**
       Microsoft only table, will not be supported.
 SLIT   Section 5.2.17 (signature == "SLIT")
-       == System Locality distance Information Table ==
+       **System Locality distance Information Table**
       Optional in general, but required for NUMA systems.
 SPCR   Signature Reserved (signature == "SPCR")
-       == Serial Port Console Redirection table ==
+       **Serial Port Console Redirection table**
       Required for arm64.
 SPMI   Signature Reserved (signature == "SPMI")
-       == Server Platform Management Interface table ==
+       **Server Platform Management Interface table**
       Optional, not currently supported.
 SRAT   Section 5.2.16 (signature == "SRAT")
-       == System Resource Affinity Table ==
+       **System Resource Affinity Table**
       Optional, but if used, only the GICC Affinity structures are read.
       To support arm64 NUMA, this table is required.
 SSDT   Section 5.2.11.2 (signature == "SSDT")
-       == Secondary System Description Table ==
+       **Secondary System Description Table**
       These tables are a continuation of the DSDT; these are recommended
       for use with devices that can be added to a running system, but can
       also serve the purpose of dividing up device descriptions into more
@@ -272,49 +365,69 @@ SSDT   Section 5.2.11.2 (signature == "SSDT")
       one DSDT but can contain many SSDTs.
 STAO   Signature Reserved (signature == "STAO")
-       == _STA Override table ==
+       **_STA Override table**
       Optional, but only necessary in virtualized environments in order to
       hide devices from guest OSs.
 TCPA   Signature Reserved (signature == "TCPA")
-       == Trusted Computing Platform Alliance table ==
+       **Trusted Computing Platform Alliance table**
       Optional, not currently supported, and may need changes to fully
       interoperate with arm64.
 TPM2   Signature Reserved (signature == "TPM2")
-       == Trusted Platform Module 2 table ==
+       **Trusted Platform Module 2 table**
       Optional, not currently supported, and may need changes to fully
       interoperate with arm64.
 UEFI   Signature Reserved (signature == "UEFI")
-       == UEFI ACPI data table ==
+       **UEFI ACPI data table**
       Optional, not currently supported.  No known use case for arm64,
       at present.
 WAET   Signature Reserved (signature == "WAET")
-       == Windows ACPI Emulated devices Table ==
+       **Windows ACPI Emulated devices Table**
       Microsoft only table, will not be supported.
 WDAT   Signature Reserved (signature == "WDAT")
-       == Watch Dog Action Table ==
+       **Watch Dog Action Table**
       Microsoft only table, will not be supported.
 WDRT   Signature Reserved (signature == "WDRT")
-       == Watch Dog Resource Table ==
+       **Watch Dog Resource Table**
       Microsoft only table, will not be supported.
 WPBT   Signature Reserved (signature == "WPBT")
-       == Windows Platform Binary Table ==
+       **Windows Platform Binary Table**
       Microsoft only table, will not be supported.
 XENV   Signature Reserved (signature == "XENV")
-       == Xen project table ==
+       **Xen project table**
       Optional, used only by Xen at present.
 XSDT   Section 5.2.8 (signature == "XSDT")
-       == eXtended System Description Table ==
-       Required for arm64.
+       **eXtended System Description Table**
+       Required for arm64.
+====== ========================================================================
 ACPI Objects
 ------------
@@ -323,10 +436,11 @@ shown in the list that follows; any object not explicitly mentioned below
 should be used as needed for a particular platform or particular subsystem,
 such as power management or PCI.
+===== ================ ========================================================
 Name   Section         Usage for ARMv8 Linux
----   ------------    -------------------------------------------------
+===== ================ ========================================================
 _CCA   6.2.17          This method must be defined for all bus masters
-                       on arm64 -- there are no assumptions made about
+                       on arm64 - there are no assumptions made about
                       whether such devices are cache coherent or not.
                       The _CCA value is inherited by all descendants of
                       these devices so it does not need to be repeated.
@@ -422,8 +536,8 @@ _OSC   6.2.11          This method can be a global method in ACPI (i.e.,
                       by the kernel community, then register it with the
                       UEFI Forum.
-\_OSI  5.7.2           Deprecated on ARM64.  As far as ACPI firmware is 
+\_OSI  5.7.2           Deprecated on ARM64.  As far as ACPI firmware is
-		       concerned, _OSI is not to be used to determine what 
+		       concerned, _OSI is not to be used to determine what
 		       sort of system is being used or what functionality
 		       is provided.  The _OSC method is to be used instead.
@@ -447,7 +561,7 @@ _PSx   7.3.2-5         Use as needed; power management specific.  If _PS0 is
                       usage, change them in these methods.
 _RDI   8.4.4.4         Recommended for use with processor definitions (_HID
-		       ACPI0010) on arm64.  This should only be used in 
+		       ACPI0010) on arm64.  This should only be used in
 		       conjunction with _LPI.
 \_REV  5.7.4           Always returns the latest version of ACPI supported.
@@ -476,6 +590,7 @@ _SWS   7.4.3           Use as needed; power management specific; this may
 _UID   6.1.12          Recommended for distinguishing devices of the same
                       class; define it if at all possible.
+===== ================ ========================================================
@@ -488,7 +603,7 @@ platforms, ACPI events must be signaled differently.
 There are two options: GPIO-signaled interrupts (Section 5.6.5), and
 interrupt-signaled events (Section 5.6.9).  Interrupt-signaled events are a
-new feature in the ACPI 6.1 specification.  Either -- or both -- can be used
+new feature in the ACPI 6.1 specification.  Either - or both - can be used
 on a given platform, and which to use may be dependent of limitations in any
 given SoC.  If possible, interrupt-signaled events are recommended.
@@ -564,39 +679,40 @@ supported.
 The following classes of objects are not supported:
-       -- Section 9.2: ambient light sensor devices
+       -  Section 9.2: ambient light sensor devices
-       -- Section 9.3: battery devices
+       -  Section 9.3: battery devices
-       -- Section 9.4: lids (e.g., laptop lids)
+       -  Section 9.4: lids (e.g., laptop lids)
-       -- Section 9.8.2: IDE controllers
+       -  Section 9.8.2: IDE controllers
-       -- Section 9.9: floppy controllers
+       -  Section 9.9: floppy controllers
-       -- Section 9.10: GPE block devices
+       -  Section 9.10: GPE block devices
-       -- Section 9.15: PC/AT RTC/CMOS devices
+       -  Section 9.15: PC/AT RTC/CMOS devices
-       -- Section 9.16: user presence detection devices
+       -  Section 9.16: user presence detection devices
-       -- Section 9.17: I/O APIC devices; all GICs must be enumerable via MADT
+       -  Section 9.17: I/O APIC devices; all GICs must be enumerable via MADT
-       -- Section 9.18: time and alarm devices (see 9.15)
+       -  Section 9.18: time and alarm devices (see 9.15)
-       -- Section 10: power source and power meter devices
+       -  Section 10: power source and power meter devices
-       -- Section 11: thermal management
+       -  Section 11: thermal management
-       -- Section 12: embedded controllers interface
+       -  Section 12: embedded controllers interface
-       -- Section 13: SMBus interfaces
+       -  Section 13: SMBus interfaces
 This also means that there is no support for the following objects:
+====   =========================== ====   ==========
 Name   Section                     Name   Section
----   ------------                ----   ------------
+====   =========================== ====   ==========
 _ALC   9.3.4                       _FDM   9.10.3
 _ALI   9.3.2                       _FIX   6.2.7
 _ALP   9.3.6                       _GAI   10.4.5
@@ -619,4 +735,4 @@ _DCK   6.5.2                       _UPD   9.16.1
 _EC    12.12                       _UPP   9.16.2
 _FDE   9.10.1                      _WPC   10.5.2
 _FDI   9.10.2                      _WPP   10.5.3
+====   =========================== ====   ==========
--- a/Documentation/arm64/arm-acpi.txt
+++ b/Documentation/arm64/arm-acpi.txt
+=====================
 ACPI on ARMv8 Servers
---------------------
+=====================
 ACPI can be used for ARMv8 general purpose servers designed to follow
 the ARM SBSA (Server Base System Architecture) [0] and SBBR (Server
 Base Boot Requirements) [1] specifications.  Please note that the SBBR
@@ -34,28 +36,28 @@ of the summary text almost directly, to be honest.
 The short form of the rationale for ACPI on ARM is:
-- ACPI’s byte code (AML) allows the platform to encode hardware behavior,
+-  ACPI’s byte code (AML) allows the platform to encode hardware behavior,
   while DT explicitly does not support this.  For hardware vendors, being
   able to encode behavior is a key tool used in supporting operating
   system releases on new hardware.
-- ACPI’s OSPM defines a power management model that constrains what the
+-  ACPI’s OSPM defines a power management model that constrains what the
   platform is allowed to do into a specific model, while still providing
   flexibility in hardware design.
-- In the enterprise server environment, ACPI has established bindings (such
+-  In the enterprise server environment, ACPI has established bindings (such
   as for RAS) which are currently used in production systems.  DT does not.
   Such bindings could be defined in DT at some point, but doing so means ARM
   and x86 would end up using completely different code paths in both firmware
   and the kernel.
-- Choosing a single interface to describe the abstraction between a platform
+-  Choosing a single interface to describe the abstraction between a platform
   and an OS is important.  Hardware vendors would not be required to implement
   both DT and ACPI if they want to support multiple operating systems.  And,
   agreeing on a single interface instead of being fragmented into per OS
   interfaces makes for better interoperability overall.
-- The new ACPI governance process works well and Linux is now at the same
+-  The new ACPI governance process works well and Linux is now at the same
   table as hardware vendors and other OS vendors.  In fact, there is no
   longer any reason to feel that ACPI only belongs to Windows or that
   Linux is in any way secondary to Microsoft in this arena.  The move of
@@ -169,31 +171,31 @@ For the ACPI core to operate properly, and in turn provide the information
 the kernel needs to configure devices, it expects to find the following
 tables (all section numbers refer to the ACPI 6.1 specification):
-    -- RSDP (Root System Description Pointer), section 5.2.5
+    -  RSDP (Root System Description Pointer), section 5.2.5
-    -- XSDT (eXtended System Description Table), section 5.2.8
+    -  XSDT (eXtended System Description Table), section 5.2.8
-    -- FADT (Fixed ACPI Description Table), section 5.2.9
+    -  FADT (Fixed ACPI Description Table), section 5.2.9
-    -- DSDT (Differentiated System Description Table), section
+    -  DSDT (Differentiated System Description Table), section
       5.2.11.1
-    -- MADT (Multiple APIC Description Table), section 5.2.12
+    -  MADT (Multiple APIC Description Table), section 5.2.12
-    -- GTDT (Generic Timer Description Table), section 5.2.24
+    -  GTDT (Generic Timer Description Table), section 5.2.24
-    -- If PCI is supported, the MCFG (Memory mapped ConFiGuration
+    -  If PCI is supported, the MCFG (Memory mapped ConFiGuration
       Table), section 5.2.6, specifically Table 5-31.
-    -- If booting without a console=<device> kernel parameter is
+    -  If booting without a console=<device> kernel parameter is
       supported, the SPCR (Serial Port Console Redirection table),
       section 5.2.6, specifically Table 5-31.
-    -- If necessary to describe the I/O topology, SMMUs and GIC ITSs,
+    -  If necessary to describe the I/O topology, SMMUs and GIC ITSs,
       the IORT (Input Output Remapping Table, section 5.2.6, specifically
       Table 5-31).
-    -- If NUMA is supported, the SRAT (System Resource Affinity Table)
+    -  If NUMA is supported, the SRAT (System Resource Affinity Table)
       and SLIT (System Locality distance Information Table), sections
       5.2.16 and 5.2.17, respectively.
@@ -269,9 +271,9 @@ describes how to define the structure of an object returned via _DSD, and
 how specific data structures are defined by specific UUIDs.  Linux should
 only use the _DSD Device Properties UUID [5]:
-   -- UUID: daffd814-6eba-4d8c-8a91-bc9bbf4aa301
+   - UUID: daffd814-6eba-4d8c-8a91-bc9bbf4aa301
-   -- http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf
+   - http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf
 The UEFI Forum provides a mechanism for registering device properties [4]
 so that they may be used across all operating systems supporting ACPI.
@@ -327,10 +329,10 @@ turning a device full off.
 There are two options for using those Power Resources.  They can:
-   -- be managed in a _PSx method which gets called on entry to power
+   -  be managed in a _PSx method which gets called on entry to power
      state Dx.
-   -- be declared separately as power resources with their own _ON and _OFF
+   -  be declared separately as power resources with their own _ON and _OFF
      methods.  They are then tied back to D-states for a particular device
      via _PRx which specifies which power resources a device needs to be on
      while in Dx.  Kernel then tracks number of devices using a power resource
@@ -339,16 +341,16 @@ There are two options for using those Power Resources.  They can:
 The kernel ACPI code will also assume that the _PSx methods follow the normal
 ACPI rules for such methods:
-   -- If either _PS0 or _PS3 is implemented, then the other method must also
+   -  If either _PS0 or _PS3 is implemented, then the other method must also
      be implemented.
-   -- If a device requires usage or setup of a power resource when on, the ASL
+   -  If a device requires usage or setup of a power resource when on, the ASL
      should organize that it is allocated/enabled using the _PS0 method.
-   -- Resources allocated or enabled in the _PS0 method should be disabled
+   -  Resources allocated or enabled in the _PS0 method should be disabled
      or de-allocated in the _PS3 method.
-   -- Firmware will leave the resources in a reasonable state before handing
+   -  Firmware will leave the resources in a reasonable state before handing
      over control to the kernel.
 Such code in _PSx methods will of course be very platform specific.  But,
@@ -394,52 +396,52 @@ else must be discovered by the driver probe function.  Then, have the rest
 of the driver operate off of the contents of that struct.  Doing so should
 allow most divergence between ACPI and DT functionality to be kept local to
 the probe function instead of being scattered throughout the driver.  For
-example:
+example::
-static int device_probe_dt(struct platform_device *pdev)
+  static int device_probe_dt(struct platform_device *pdev)
-{
+  {
-       /* DT specific functionality */
+         /* DT specific functionality */
-       ...
+         ...
-}
+  }
-static int device_probe_acpi(struct platform_device *pdev)
+  static int device_probe_acpi(struct platform_device *pdev)
-{
+  {
-       /* ACPI specific functionality */
+         /* ACPI specific functionality */
-       ...
+         ...
-}
+  }
-static int device_probe(struct platform_device *pdev)
+  static int device_probe(struct platform_device *pdev)
-{
+  {
-       ...
+         ...
-       struct device_node node = pdev->dev.of_node;
+         struct device_node node = pdev->dev.of_node;
-       ...
+         ...
-       if (node)
+         if (node)
-               ret = device_probe_dt(pdev);
+                 ret = device_probe_dt(pdev);
-       else if (ACPI_HANDLE(&pdev->dev))
+         else if (ACPI_HANDLE(&pdev->dev))
-               ret = device_probe_acpi(pdev);
+                 ret = device_probe_acpi(pdev);
-       else
+         else
-               /* other initialization */
+                 /* other initialization */
-               ...
+                 ...
-       /* Continue with any generic probe operations */
+         /* Continue with any generic probe operations */
-       ...
+         ...
-}
+  }
 DO keep the MODULE_DEVICE_TABLE entries together in the driver to make it
 clear the different names the driver is probed for, both from DT and from
-ACPI:
+ACPI::
-static struct of_device_id virtio_mmio_match[] = {
+  static struct of_device_id virtio_mmio_match[] = {
-        { .compatible = "virtio,mmio", },
+          { .compatible = "virtio,mmio", },
-        { }
+          { }
-};
+  };
-MODULE_DEVICE_TABLE(of, virtio_mmio_match);
+  MODULE_DEVICE_TABLE(of, virtio_mmio_match);
-static const struct acpi_device_id virtio_mmio_acpi_match[] = {
+  static const struct acpi_device_id virtio_mmio_acpi_match[] = {
-        { "LNRO0005", },
+          { "LNRO0005", },
-        { }
+          { }
-};
+  };
-MODULE_DEVICE_TABLE(acpi, virtio_mmio_acpi_match);
+  MODULE_DEVICE_TABLE(acpi, virtio_mmio_acpi_match);
 ASWG
@@ -471,7 +473,8 @@ Linux Code
 Individual items specific to Linux on ARM, contained in the the Linux
 source code, are in the list that follows:
-ACPI_OS_NAME           This macro defines the string to be returned when
+ACPI_OS_NAME
+                       This macro defines the string to be returned when
                       an ACPI method invokes the _OS method.  On ARM64
                       systems, this macro will be "Linux" by default.
                       The command line parameter acpi_os=<string>
@@ -482,38 +485,44 @@ ACPI_OS_NAME           This macro defines the string to be returned when
 ACPI Objects
 ------------
 Detailed expectations for ACPI tables and object are listed in the file
-Documentation/arm64/acpi_object_usage.txt.
+Documentation/arm64/acpi_object_usage.rst.
 References
 ----------
-[0] http://silver.arm.com -- document ARM-DEN-0029, or newer
+[0] http://silver.arm.com
+    document ARM-DEN-0029, or newer:
    "Server Base System Architecture", version 2.3, dated 27 Mar 2014
 [1] http://infocenter.arm.com/help/topic/com.arm.doc.den0044a/Server_Base_Boot_Requirements.pdf
    Document ARM-DEN-0044A, or newer: "Server Base Boot Requirements, System
    Software on ARM Platforms", dated 16 Aug 2014
-[2] http://www.secretlab.ca/archives/151, 10 Jan 2015, Copyright (c) 2015,
+[2] http://www.secretlab.ca/archives/151,
+    10 Jan 2015, Copyright (c) 2015,
    Linaro Ltd., written by Grant Likely.
-[3] AMD ACPI for Seattle platform documentation:
+[3] AMD ACPI for Seattle platform documentation
    http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2012/10/Seattle_ACPI_Guide.pdf
-[4] http://www.uefi.org/acpi -- please see the link for the "ACPI _DSD Device
+[4] http://www.uefi.org/acpi
+    please see the link for the "ACPI _DSD Device
    Property Registry Instructions"
-[5] http://www.uefi.org/acpi -- please see the link for the "_DSD (Device
+[5] http://www.uefi.org/acpi
+    please see the link for the "_DSD (Device
    Specific Data) Implementation Guide"
-[6] Kernel code for the unified device property interface can be found in
+[6] Kernel code for the unified device
+    property interface can be found in
    include/linux/property.h and drivers/base/property.c.
 Authors
 -------
-Al Stone <al.stone@linaro.org>
+- Al Stone <al.stone@linaro.org>
-Graeme Gregory <graeme.gregory@linaro.org>
+- Graeme Gregory <graeme.gregory@linaro.org>
-Hanjun Guo <hanjun.guo@linaro.org>
+- Hanjun Guo <hanjun.guo@linaro.org>
-Grant Likely <grant.likely@linaro.org>, for the "Why ACPI on ARM?" section
+- Grant Likely <grant.likely@linaro.org>, for the "Why ACPI on ARM?" section
--- a/Documentation/arm64/booting.txt
+++ b/Documentation/arm64/booting.txt
-			Booting AArch64 Linux
+=====================
-			=====================
+Booting AArch64 Linux
+=====================
 Author: Will Deacon <will.deacon@arm.com>
 Date  : 07 September 2012
 This document is based on the ARM booting document by Russell King and
@@ -12,7 +14,7 @@ The AArch64 exception model is made up of a number of exception levels
 counterpart.  EL2 is the hypervisor level and exists only in non-secure
 mode. EL3 is the highest priority level and exists only in secure mode.
-For the purposes of this document, we will use the term `boot loader'
+For the purposes of this document, we will use the term `boot loader`
 simply to define all software that executes on the CPU(s) before control
 is passed to the Linux kernel.  This may include secure monitor and
 hypervisor code, or it may just be a handful of instructions for
@@ -70,7 +72,7 @@ Image target is available instead.
 Requirement: MANDATORY
-The decompressed kernel image contains a 64-byte header as follows:
+The decompressed kernel image contains a 64-byte header as follows::
  u32 code0;			/* Executable code */
  u32 code1;			/* Executable code */
@@ -103,19 +105,26 @@ Header notes:
 - The flags field (introduced in v3.17) is a little-endian 64-bit field
  composed as follows:
-  Bit 0:	Kernel endianness.  1 if BE, 0 if LE.
-  Bit 1-2:	Kernel Page size.
+  ============= ===============================================================
-			0 - Unspecified.
+  Bit 0		Kernel endianness.  1 if BE, 0 if LE.
-			1 - 4K
+  Bit 1-2	Kernel Page size.
-			2 - 16K
-			3 - 64K
+			* 0 - Unspecified.
-  Bit 3:	Kernel physical placement
+			* 1 - 4K
-			0 - 2MB aligned base should be as close as possible
+			* 2 - 16K
-			    to the base of DRAM, since memory below it is not
+			* 3 - 64K
-			    accessible via the linear mapping
+  Bit 3		Kernel physical placement
-			1 - 2MB aligned base may be anywhere in physical
-			    memory
+			0
-  Bits 4-63:	Reserved.
+			  2MB aligned base should be as close as possible
+			  to the base of DRAM, since memory below it is not
+			  accessible via the linear mapping
+			1
+			  2MB aligned base may be anywhere in physical
+			  memory
+  Bits 4-63	Reserved.
+  ============= ===============================================================
 - When image_size is zero, a bootloader should attempt to keep as much
  memory as possible free for use by the kernel immediately after the
@@ -147,19 +156,22 @@ Before jumping into the kernel, the following conditions must be met:
  corrupted by bogus network packets or disk data.  This will save
  you many hours of debug.
- Primary CPU general-purpose register settings
+- Primary CPU general-purpose register settings:
-  x0 = physical address of device tree blob (dtb) in system RAM.
-  x1 = 0 (reserved for future use)
+    - x0 = physical address of device tree blob (dtb) in system RAM.
-  x2 = 0 (reserved for future use)
+    - x1 = 0 (reserved for future use)
-  x3 = 0 (reserved for future use)
+    - x2 = 0 (reserved for future use)
+    - x3 = 0 (reserved for future use)
 - CPU mode
  All forms of interrupts must be masked in PSTATE.DAIF (Debug, SError,
  IRQ and FIQ).
  The CPU must be in either EL2 (RECOMMENDED in order to have access to
  the virtualisation extensions) or non-secure EL1.
 - Caches, MMUs
  The MMU must be off.
  Instruction cache may be on or off.
  The address range corresponding to the loaded kernel image must be
@@ -172,18 +184,21 @@ Before jumping into the kernel, the following conditions must be met:
  operations (not recommended) must be configured and disabled.
 - Architected timers
  CNTFRQ must be programmed with the timer frequency and CNTVOFF must
  be programmed with a consistent value on all CPUs.  If entering the
  kernel at EL1, CNTHCTL_EL2 must have EL1PCTEN (bit 0) set where
  available.
 - Coherency
  All CPUs to be booted by the kernel must be part of the same coherency
  domain on entry to the kernel.  This may require IMPLEMENTATION DEFINED
  initialisation to enable the receiving of maintenance operations on
  each CPU.
 - System registers
  All writable architected system registers at the exception level where
  the kernel image will be entered must be initialised by software at a
  higher exception level to prevent execution in an UNKNOWN state.
@@ -195,28 +210,40 @@ Before jumping into the kernel, the following conditions must be met:
  For systems with a GICv3 interrupt controller to be used in v3 mode:
  - If EL3 is present:
-    ICC_SRE_EL3.Enable (bit 3) must be initialiased to 0b1.
-    ICC_SRE_EL3.SRE (bit 0) must be initialised to 0b1.
+      - ICC_SRE_EL3.Enable (bit 3) must be initialiased to 0b1.
+      - ICC_SRE_EL3.SRE (bit 0) must be initialised to 0b1.
  - If the kernel is entered at EL1:
-    ICC.SRE_EL2.Enable (bit 3) must be initialised to 0b1
-    ICC_SRE_EL2.SRE (bit 0) must be initialised to 0b1.
+      - ICC.SRE_EL2.Enable (bit 3) must be initialised to 0b1
+      - ICC_SRE_EL2.SRE (bit 0) must be initialised to 0b1.
  - The DT or ACPI tables must describe a GICv3 interrupt controller.
  For systems with a GICv3 interrupt controller to be used in
  compatibility (v2) mode:
  - If EL3 is present:
-    ICC_SRE_EL3.SRE (bit 0) must be initialised to 0b0.
+      ICC_SRE_EL3.SRE (bit 0) must be initialised to 0b0.
  - If the kernel is entered at EL1:
-    ICC_SRE_EL2.SRE (bit 0) must be initialised to 0b0.
+      ICC_SRE_EL2.SRE (bit 0) must be initialised to 0b0.
  - The DT or ACPI tables must describe a GICv2 interrupt controller.
  For CPUs with pointer authentication functionality:
  - If EL3 is present:
-    SCR_EL3.APK (bit 16) must be initialised to 0b1
-    SCR_EL3.API (bit 17) must be initialised to 0b1
+    - SCR_EL3.APK (bit 16) must be initialised to 0b1
+    - SCR_EL3.API (bit 17) must be initialised to 0b1
  - If the kernel is entered at EL1:
-    HCR_EL2.APK (bit 40) must be initialised to 0b1
-    HCR_EL2.API (bit 41) must be initialised to 0b1
+    - HCR_EL2.APK (bit 40) must be initialised to 0b1
+    - HCR_EL2.API (bit 41) must be initialised to 0b1
 The requirements described above for CPU mode, caches, MMUs, architected
 timers, coherency and system registers apply to all CPUs.  All CPUs must

--- a/Documentation/arm64/cpu-feature-registers.txt
+++ b/Documentation/arm64/cpu-feature-registers.txt
-		ARM64 CPU Feature Registers
+===========================
-		===========================
+ARM64 CPU Feature Registers
+===========================
 Author: Suzuki K Poulose <suzuki.poulose@arm.com>
@@ -9,7 +10,7 @@ registers to userspace. The availability of this ABI is advertised
 via the HWCAP_CPUID in HWCAPs.
 1. Motivation
---------------
+-------------
 The ARM architecture defines a set of feature registers, which describe
 the capabilities of the CPU/system. Access to these system registers is
@@ -33,9 +34,10 @@ there are some issues with their usage.
 2. Requirements
-----------------
+---------------
+ a) Safety:
- a) Safety :
    Applications should be able to use the information provided by the
    infrastructure to run safely across the system. This has greater
    implications on a system with heterogeneous CPUs.
@@ -47,7 +49,8 @@ there are some issues with their usage.
    Otherwise an application could crash when scheduled on the CPU
    which doesn't support CRC32.
- b) Security :
+ b) Security:
    Applications should only be able to receive information that is
    relevant to the normal operation in userspace. Hence, some of the
    fields are masked out(i.e, made invisible) and their values are set to
@@ -58,10 +61,12 @@ there are some issues with their usage.
    (even when the CPU provides it).
 c) Implementation Defined Features
    The infrastructure doesn't expose any register which is
    IMPLEMENTATION DEFINED as per ARMv8-A Architecture.
- d) CPU Identification :
+ d) CPU Identification:
    MIDR_EL1 is exposed to help identify the processor. On a
    heterogeneous system, this could be racy (just like getcpu()). The
    process could be migrated to another CPU by the time it uses the
@@ -70,7 +75,7 @@ there are some issues with their usage.
    currently executing on. The REVIDR is not exposed due to this
    constraint, as REVIDR makes sense only in conjunction with the
    MIDR. Alternately, MIDR_EL1 and REVIDR_EL1 are exposed via sysfs
-    at:
+    at::
 	/sys/devices/system/cpu/cpu$ID/regs/identification/
 	                                              \- midr
@@ -85,7 +90,8 @@ exception and ends up in SIGILL being delivered to the process.
 The infrastructure hooks into the exception handler and emulates the
 operation if the source belongs to the supported system register space.
-The infrastructure emulates only the following system register space:
+The infrastructure emulates only the following system register space::
 	Op0=3, Op1=0, CRn=0, CRm=0,4,5,6,7
 (See Table C5-6 'System instruction encodings for non-Debug System
@@ -107,73 +113,76 @@ infrastructure:
 -------------------------------------------
  1) ID_AA64ISAR0_EL1 - Instruction Set Attribute Register 0
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
     | Name                         |  bits   | visible |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | TS                           | [55-52] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | FHM                          | [51-48] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | DP                           | [47-44] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | SM4                          | [43-40] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | SM3                          | [39-36] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | SHA3                         | [35-32] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | RDM                          | [31-28] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | ATOMICS                      | [23-20] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | CRC32                        | [19-16] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | SHA2                         | [15-12] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | SHA1                         | [11-8]  |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | AES                          | [7-4]   |    y    |
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
  2) ID_AA64PFR0_EL1 - Processor Feature Register 0
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
     | Name                         |  bits   | visible |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | DIT                          | [51-48] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | SVE                          | [35-32] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | GIC                          | [27-24] |    n    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | AdvSIMD                      | [23-20] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | FP                           | [19-16] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | EL3                          | [15-12] |    n    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | EL2                          | [11-8]  |    n    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | EL1                          | [7-4]   |    n    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | EL0                          | [3-0]   |    n    |
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
  3) MIDR_EL1 - Main ID Register
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
     | Name                         |  bits   | visible |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | Implementer                  | [31-24] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | Variant                      | [23-20] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | Architecture                 | [19-16] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | PartNum                      | [15-4]  |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | Revision                     | [3-0]   |    y    |
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
   NOTE: The 'visible' fields of MIDR_EL1 will contain the value
   as available on the CPU where it is fetched and is not a system
@@ -181,90 +190,92 @@ infrastructure:
  4) ID_AA64ISAR1_EL1 - Instruction set attribute register 1
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
     | Name                         |  bits   | visible |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | GPI                          | [31-28] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | GPA                          | [27-24] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | LRCPC                        | [23-20] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | FCMA                         | [19-16] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | JSCVT                        | [15-12] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | API                          | [11-8]  |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | APA                          | [7-4]   |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | DPB                          | [3-0]   |    y    |
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
  5) ID_AA64MMFR2_EL1 - Memory model feature register 2
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
     | Name                         |  bits   | visible |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | AT                           | [35-32] |    y    |
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
  6) ID_AA64ZFR0_EL1 - SVE feature ID register 0
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
     | Name                         |  bits   | visible |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | SM4                          | [43-40] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | SHA3                         | [35-32] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | BitPerm                      | [19-16] |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | AES                          | [7-4]   |    y    |
-     |--------------------------------------------------|
+     +------------------------------+---------+---------+
     | SVEVer                       | [3-0]   |    y    |
-     x--------------------------------------------------x
+     +------------------------------+---------+---------+
 Appendix I: Example
---------------------------
+-------------------
-/*
+::
- * Sample program to demonstrate the MRS emulation ABI.
- *
+  /*
- * Copyright (C) 2015-2016, ARM Ltd
+   * Sample program to demonstrate the MRS emulation ABI.
- *
+   *
- * Author: Suzuki K Poulose <suzuki.poulose@arm.com>
+   * Copyright (C) 2015-2016, ARM Ltd
- *
+   *
- * This program is free software; you can redistribute it and/or modify
+   * Author: Suzuki K Poulose <suzuki.poulose@arm.com>
- * it under the terms of the GNU General Public License version 2 as
+   *
- * published by the Free Software Foundation.
+   * This program is free software; you can redistribute it and/or modify
- *
+   * it under the terms of the GNU General Public License version 2 as
- * This program is distributed in the hope that it will be useful,
+   * published by the Free Software Foundation.
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
+   *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   * This program is distributed in the hope that it will be useful,
- * GNU General Public License for more details.
+   * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * This program is free software; you can redistribute it and/or modify
+   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * it under the terms of the GNU General Public License version 2 as
+   * GNU General Public License for more details.
- * published by the Free Software Foundation.
+   * This program is free software; you can redistribute it and/or modify
- *
+   * it under the terms of the GNU General Public License version 2 as
- * This program is distributed in the hope that it will be useful,
+   * published by the Free Software Foundation.
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
+   *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   * This program is distributed in the hope that it will be useful,
- * GNU General Public License for more details.
+   * but WITHOUT ANY WARRANTY; without even the implied warranty of
- */
+   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   * GNU General Public License for more details.
-#include <asm/hwcap.h>
+   */
-#include <stdio.h>
-#include <sys/auxv.h>
+  #include <asm/hwcap.h>
+  #include <stdio.h>
-#define get_cpu_ftr(id) ({					\
+  #include <sys/auxv.h>
+  #define get_cpu_ftr(id) ({					\
 		unsigned long __val;				\
 		asm("mrs %0, "#id : "=r" (__val));		\
 		printf("%-20s: 0x%016lx\n", #id, __val);	\
 	})
-int main(void)
+  int main(void)
-{
+  {
 	if (!(getauxval(AT_HWCAP) & HWCAP_CPUID)) {
 		fputs("CPUID registers unavailable\n", stderr);
@@ -284,13 +295,10 @@ int main(void)
 	get_cpu_ftr(MPIDR_EL1);
 	get_cpu_ftr(REVIDR_EL1);
-#if 0
+  #if 0
 	/* Unexposed register access causes SIGILL */
 	get_cpu_ftr(ID_MMFR0_EL1);
-#endif
+  #endif
 	return 0;
-}
+  }
--- a/Documentation/arm64/elf_hwcaps.txt
+++ b/Documentation/arm64/elf_hwcaps.txt
+================
 ARM64 ELF hwcaps
 ================
@@ -15,16 +16,16 @@ of flags called hwcaps, exposed in the auxilliary vector.
 Userspace software can test for features by acquiring the AT_HWCAP or
 AT_HWCAP2 entry of the auxiliary vector, and testing whether the relevant
-flags are set, e.g.
+flags are set, e.g.::
-bool floating_point_is_present(void)
+	bool floating_point_is_present(void)
-{
+	{
-	unsigned long hwcaps = getauxval(AT_HWCAP);
+		unsigned long hwcaps = getauxval(AT_HWCAP);
-	if (hwcaps & HWCAP_FP)
+		if (hwcaps & HWCAP_FP)
-		return true;
+			return true;
-	return false;
+		return false;
-}
+	}
 Where software relies on a feature described by a hwcap, it should check
 the relevant hwcap flag to verify that the feature is present before
@@ -45,7 +46,7 @@ userspace code at EL0. These hwcaps are defined in terms of ID register
 fields, and should be interpreted with reference to the definition of
 these fields in the ARM Architecture Reference Manual (ARM ARM).
-Such hwcaps are described below in the form:
+Such hwcaps are described below in the form::
    Functionality implied by idreg.field == val.
@@ -64,75 +65,58 @@ reference to ID registers, and may refer to other documentation.
 ---------------------------------
 HWCAP_FP
    Functionality implied by ID_AA64PFR0_EL1.FP == 0b0000.
 HWCAP_ASIMD
    Functionality implied by ID_AA64PFR0_EL1.AdvSIMD == 0b0000.
 HWCAP_EVTSTRM
    The generic timer is configured to generate events at a frequency of
    approximately 100KHz.
 HWCAP_AES
    Functionality implied by ID_AA64ISAR0_EL1.AES == 0b0001.
 HWCAP_PMULL
    Functionality implied by ID_AA64ISAR0_EL1.AES == 0b0010.
 HWCAP_SHA1
    Functionality implied by ID_AA64ISAR0_EL1.SHA1 == 0b0001.
 HWCAP_SHA2
    Functionality implied by ID_AA64ISAR0_EL1.SHA2 == 0b0001.
 HWCAP_CRC32
    Functionality implied by ID_AA64ISAR0_EL1.CRC32 == 0b0001.
 HWCAP_ATOMICS
    Functionality implied by ID_AA64ISAR0_EL1.Atomic == 0b0010.
 HWCAP_FPHP
    Functionality implied by ID_AA64PFR0_EL1.FP == 0b0001.
 HWCAP_ASIMDHP
    Functionality implied by ID_AA64PFR0_EL1.AdvSIMD == 0b0001.
 HWCAP_CPUID
    EL0 access to certain ID registers is available, to the extent
-    described by Documentation/arm64/cpu-feature-registers.txt.
+    described by Documentation/arm64/cpu-feature-registers.rst.
    These ID registers may imply the availability of features.
 HWCAP_ASIMDRDM
    Functionality implied by ID_AA64ISAR0_EL1.RDM == 0b0001.
 HWCAP_JSCVT
    Functionality implied by ID_AA64ISAR1_EL1.JSCVT == 0b0001.
 HWCAP_FCMA
    Functionality implied by ID_AA64ISAR1_EL1.FCMA == 0b0001.
 HWCAP_LRCPC
    Functionality implied by ID_AA64ISAR1_EL1.LRCPC == 0b0001.
 HWCAP_DCPOP
    Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0001.
 HWCAP2_DCPODP
@@ -140,27 +124,21 @@ HWCAP2_DCPODP
    Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0010.
 HWCAP_SHA3
    Functionality implied by ID_AA64ISAR0_EL1.SHA3 == 0b0001.
 HWCAP_SM3
    Functionality implied by ID_AA64ISAR0_EL1.SM3 == 0b0001.
 HWCAP_SM4
    Functionality implied by ID_AA64ISAR0_EL1.SM4 == 0b0001.
 HWCAP_ASIMDDP
    Functionality implied by ID_AA64ISAR0_EL1.DP == 0b0001.
 HWCAP_SHA512
    Functionality implied by ID_AA64ISAR0_EL1.SHA2 == 0b0010.
 HWCAP_SVE
    Functionality implied by ID_AA64PFR0_EL1.SVE == 0b0001.
 HWCAP2_SVE2
@@ -188,40 +166,32 @@ HWCAP2_SVESM4
    Functionality implied by ID_AA64ZFR0_EL1.SM4 == 0b0001.
 HWCAP_ASIMDFHM
   Functionality implied by ID_AA64ISAR0_EL1.FHM == 0b0001.
 HWCAP_DIT
    Functionality implied by ID_AA64PFR0_EL1.DIT == 0b0001.
 HWCAP_USCAT
    Functionality implied by ID_AA64MMFR2_EL1.AT == 0b0001.
 HWCAP_ILRCPC
    Functionality implied by ID_AA64ISAR1_EL1.LRCPC == 0b0010.
 HWCAP_FLAGM
    Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0001.
 HWCAP_SSBS
    Functionality implied by ID_AA64PFR1_EL1.SSBS == 0b0010.
 HWCAP_PACA
    Functionality implied by ID_AA64ISAR1_EL1.APA == 0b0001 or
    ID_AA64ISAR1_EL1.API == 0b0001, as described by
-    Documentation/arm64/pointer-authentication.txt.
+    Documentation/arm64/pointer-authentication.rst.
 HWCAP_PACG
    Functionality implied by ID_AA64ISAR1_EL1.GPA == 0b0001 or
    ID_AA64ISAR1_EL1.GPI == 0b0001, as described by
-    Documentation/arm64/pointer-authentication.txt.
+    Documentation/arm64/pointer-authentication.rst.
 4. Unused AT_HWCAP bits

--- a/Documentation/arm64/hugetlbpage.txt
+++ b/Documentation/arm64/hugetlbpage.txt
+====================
 HugeTLBpage on ARM64
 ====================
@@ -31,8 +32,10 @@ and level of the page table.
 The following hugepage sizes are supported -
-         CONT PTE    PMD    CONT PMD    PUD
+  ====== ========   ====    ========    ===
-         --------    ---    --------    ---
+  -      CONT PTE    PMD    CONT PMD    PUD
+  ====== ========   ====    ========    ===
  4K:         64K     2M         32M     1G
  16K:         2M    32M          1G
  64K:         2M   512M         16G
+  ====== ========   ====    ========    ===
--- a/Documentation/arm64/index.rst
+++ b/Documentation/arm64/index.rst
+:orphan:
+==================
+ARM64 Architecture
+==================
+.. toctree::
+    :maxdepth: 1
+    acpi_object_usage
+    arm-acpi
+    booting
+    cpu-feature-registers
+    elf_hwcaps
+    hugetlbpage
+    legacy_instructions
+    memory
+    pointer-authentication
+    silicon-errata
+    sve
+    tagged-pointers
+.. only::  subproject and html
+   Indices
+   =======
+   * :ref:`genindex`
--- a/Documentation/arm64/legacy_instructions.txt
+++ b/Documentation/arm64/legacy_instructions.txt
+===================
+Legacy instructions
+===================
 The arm64 port of the Linux kernel provides infrastructure to support
 emulation of instructions which have been deprecated, or obsoleted in
 the architecture. The infrastructure code uses undefined instruction
@@ -9,19 +13,22 @@ The emulation mode can be controlled by writing to sysctl nodes
 behaviours and the corresponding values of the sysctl nodes -
 * Undef
-  Value: 0
+    Value: 0
  Generates undefined instruction abort. Default for instructions that
  have been obsoleted in the architecture, e.g., SWP
 * Emulate
-  Value: 1
+    Value: 1
  Uses software emulation. To aid migration of software, in this mode
  usage of emulated instruction is traced as well as rate limited
  warnings are issued. This is the default for deprecated
  instructions, .e.g., CP15 barriers
 * Hardware Execution
-  Value: 2
+    Value: 2
  Although marked as deprecated, some implementations may support the
  enabling/disabling of hardware support for the execution of these
  instructions. Using hardware execution generally provides better
@@ -38,20 +45,24 @@ individual instruction notes for further information.
 Supported legacy instructions
 -----------------------------
 * SWP{B}
-Node: /proc/sys/abi/swp
-Status: Obsolete
+:Node: /proc/sys/abi/swp
-Default: Undef (0)
+:Status: Obsolete
+:Default: Undef (0)
 * CP15 Barriers
-Node: /proc/sys/abi/cp15_barrier
-Status: Deprecated
+:Node: /proc/sys/abi/cp15_barrier
-Default: Emulate (1)
+:Status: Deprecated
+:Default: Emulate (1)
 * SETEND
-Node: /proc/sys/abi/setend
-Status: Deprecated
+:Node: /proc/sys/abi/setend
-Default: Emulate (1)*
+:Status: Deprecated
-Note: All the cpus on the system must have mixed endian support at EL0
+:Default: Emulate (1)*
-for this feature to be enabled. If a new CPU - which doesn't support mixed
-endian - is hotplugged in after this feature has been enabled, there could
+  Note: All the cpus on the system must have mixed endian support at EL0
-be unexpected results in the application.
+  for this feature to be enabled. If a new CPU - which doesn't support mixed
+  endian - is hotplugged in after this feature has been enabled, there could
+  be unexpected results in the application.
--- a/Documentation/arm64/memory.txt
+++ b/Documentation/arm64/memory.txt
-		     Memory Layout on AArch64 Linux
+==============================
-		     ==============================
+Memory Layout on AArch64 Linux
+==============================
 Author: Catalin Marinas <catalin.marinas@arm.com>
@@ -21,69 +22,69 @@ The swapper_pg_dir address is written to TTBR1 and never written to
 TTBR0.
-AArch64 Linux memory layout with 4KB pages + 3 levels:
+AArch64 Linux memory layout with 4KB pages + 3 levels::
-Start			End			Size		Use
+  Start			End			Size		Use
-----------------------------------------------------------------------
+  -----------------------------------------------------------------------
-0000000000000000	0000007fffffffff	 512GB		user
+  0000000000000000	0000007fffffffff	 512GB		user
-ffffff8000000000	ffffffffffffffff	 512GB		kernel
+  ffffff8000000000	ffffffffffffffff	 512GB		kernel
-AArch64 Linux memory layout with 4KB pages + 4 levels:
+AArch64 Linux memory layout with 4KB pages + 4 levels::
-Start			End			Size		Use
+  Start			End			Size		Use
-----------------------------------------------------------------------
+  -----------------------------------------------------------------------
-0000000000000000	0000ffffffffffff	 256TB		user
+  0000000000000000	0000ffffffffffff	 256TB		user
-ffff000000000000	ffffffffffffffff	 256TB		kernel
+  ffff000000000000	ffffffffffffffff	 256TB		kernel
-AArch64 Linux memory layout with 64KB pages + 2 levels:
+AArch64 Linux memory layout with 64KB pages + 2 levels::
-Start			End			Size		Use
+  Start			End			Size		Use
-----------------------------------------------------------------------
+  -----------------------------------------------------------------------
-0000000000000000	000003ffffffffff	   4TB		user
+  0000000000000000	000003ffffffffff	   4TB		user
-fffffc0000000000	ffffffffffffffff	   4TB		kernel
+  fffffc0000000000	ffffffffffffffff	   4TB		kernel
-AArch64 Linux memory layout with 64KB pages + 3 levels:
+AArch64 Linux memory layout with 64KB pages + 3 levels::
-Start			End			Size		Use
+  Start			End			Size		Use
-----------------------------------------------------------------------
+  -----------------------------------------------------------------------
-0000000000000000	0000ffffffffffff	 256TB		user
+  0000000000000000	0000ffffffffffff	 256TB		user
-ffff000000000000	ffffffffffffffff	 256TB		kernel
+  ffff000000000000	ffffffffffffffff	 256TB		kernel
 For details of the virtual kernel memory layout please see the kernel
 booting log.
-Translation table lookup with 4KB pages:
+Translation table lookup with 4KB pages::
-+--------+--------+--------+--------+--------+--------+--------+--------+
+  +--------+--------+--------+--------+--------+--------+--------+--------+
-|63    56|55    48|47    40|39    32|31    24|23    16|15     8|7      0|
+  |63    56|55    48|47    40|39    32|31    24|23    16|15     8|7      0|
-+--------+--------+--------+--------+--------+--------+--------+--------+
+  +--------+--------+--------+--------+--------+--------+--------+--------+
- |                 |         |         |         |         |
+   |                 |         |         |         |         |
- |                 |         |         |         |         v
+   |                 |         |         |         |         v
- |                 |         |         |         |   [11:0]  in-page offset
+   |                 |         |         |         |   [11:0]  in-page offset
- |                 |         |         |         +-> [20:12] L3 index
+   |                 |         |         |         +-> [20:12] L3 index
- |                 |         |         +-----------> [29:21] L2 index
+   |                 |         |         +-----------> [29:21] L2 index
- |                 |         +---------------------> [38:30] L1 index
+   |                 |         +---------------------> [38:30] L1 index
- |                 +-------------------------------> [47:39] L0 index
+   |                 +-------------------------------> [47:39] L0 index
- +-------------------------------------------------> [63] TTBR0/1
+   +-------------------------------------------------> [63] TTBR0/1
-Translation table lookup with 64KB pages:
+Translation table lookup with 64KB pages::
-+--------+--------+--------+--------+--------+--------+--------+--------+
+  +--------+--------+--------+--------+--------+--------+--------+--------+
-|63    56|55    48|47    40|39    32|31    24|23    16|15     8|7      0|
+  |63    56|55    48|47    40|39    32|31    24|23    16|15     8|7      0|
-+--------+--------+--------+--------+--------+--------+--------+--------+
+  +--------+--------+--------+--------+--------+--------+--------+--------+
- |                 |    |               |              |
+   |                 |    |               |              |
- |                 |    |               |              v
+   |                 |    |               |              v
- |                 |    |               |            [15:0]  in-page offset
+   |                 |    |               |            [15:0]  in-page offset
- |                 |    |               +----------> [28:16] L3 index
+   |                 |    |               +----------> [28:16] L3 index
- |                 |    +--------------------------> [41:29] L2 index
+   |                 |    +--------------------------> [41:29] L2 index
- |                 +-------------------------------> [47:42] L1 index
+   |                 +-------------------------------> [47:42] L1 index
- +-------------------------------------------------> [63] TTBR0/1
+   +-------------------------------------------------> [63] TTBR0/1
 When using KVM without the Virtualization Host Extensions, the

--- a/Documentation/arm64/pointer-authentication.txt
+++ b/Documentation/arm64/pointer-authentication.txt
+=======================================
 Pointer authentication in AArch64 Linux
 =======================================
 Author: Mark Rutland <mark.rutland@arm.com>
 Date: 2017-07-19
 This document briefly describes the provision of pointer authentication

--- a/Documentation/arm64/silicon-errata.txt
+++ b/Documentation/arm64/silicon-errata.txt
-                Silicon Errata and Software Workarounds
+=======================================
-                =======================================
+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
@@ -9,11 +11,13 @@ 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
+  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
+  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
@@ -42,47 +46,86 @@ 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                     |
 +----------------+-----------------+-----------------+-----------------------------+
+| Implementor    | Component       | Erratum ID      | Kconfig                     |
+================+=================+=================+=============================+
 | Allwinner      | A64/R18         | UNKNOWN1        | SUN50I_ERRATUM_UNKNOWN1     |
-|                |                 |                 |                             |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
 | 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-A57      | #832075         | ARM64_ERRATUM_832075        |
+----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A57      | #852523         | N/A                         |
+----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A57      | #834220         | ARM64_ERRATUM_834220        |
+----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A72      | #853709         | N/A                         |
+----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A73      | #858921         | ARM64_ERRATUM_858921        |
+----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A55      | #1024718        | ARM64_ERRATUM_1024718       |
+----------------+-----------------+-----------------+-----------------------------+
 | 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            | Neoverse-N1     | #1188873,1418040| ARM64_ERRATUM_1418040       |
+----------------+-----------------+-----------------+-----------------------------+
 | ARM            | MMU-500         | #841119,826419  | N/A                         |
-|                |                 |                 |                             |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
 | Cavium         | ThunderX ITS    | #22375,24313    | CAVIUM_ERRATUM_22375        |
+----------------+-----------------+-----------------+-----------------------------+
 | Cavium         | ThunderX ITS    | #23144          | CAVIUM_ERRATUM_23144        |
+----------------+-----------------+-----------------+-----------------------------+
 | Cavium         | ThunderX GICv3  | #23154          | CAVIUM_ERRATUM_23154        |
+----------------+-----------------+-----------------+-----------------------------+
 | 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                         |
-|                |                 |                 |                             |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
 | 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      | Hip07           | #161600802      | HISILICON_ERRATUM_161600802 |
+----------------+-----------------+-----------------+-----------------------------+
 | Hisilicon      | Hip08 SMMU PMCG | #162001800      | N/A                         |
-|                |                 |                 |                             |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
 | Qualcomm Tech. | Kryo/Falkor v1  | E1003           | QCOM_FALKOR_ERRATUM_1003    |
+----------------+-----------------+-----------------+-----------------------------+
 | Qualcomm Tech. | 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    |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
 | Fujitsu        | A64FX           | E#010001        | FUJITSU_ERRATUM_010001      |
+----------------+-----------------+-----------------+-----------------------------+
--- a/Documentation/arm64/sve.txt
+++ b/Documentation/arm64/sve.txt
-            Scalable Vector Extension support for AArch64 Linux
+===================================================
-            ===================================================
+Scalable Vector Extension support for AArch64 Linux
+===================================================
 Author: Dave Martin <Dave.Martin@arm.com>
 Date:   4 August 2017
 This document outlines briefly the interface provided to userspace by Linux in
@@ -426,7 +428,7 @@ In A64 state, SVE adds the following:
 * FPSR and FPCR are retained from ARMv8-A, and interact with SVE floating-point
  operations in a similar way to the way in which they interact with ARMv8
-  floating-point operations.
+  floating-point operations::
         8VL-1                       128               0  bit index
        +----          ////            -----------------+
@@ -483,6 +485,8 @@ ARMv8-A defines the following floating-point / SIMD register state:
 * 32 128-bit vector registers V0..V31
 * 2 32-bit status/control registers FPSR, FPCR
+::
         127           0  bit index
        +---------------+
     V0 |               |
@@ -517,7 +521,7 @@ References
 [2] arch/arm64/include/uapi/asm/ptrace.h
    AArch64 Linux ptrace ABI definitions
-[3] Documentation/arm64/cpu-feature-registers.txt
+[3] Documentation/arm64/cpu-feature-registers.rst
 [4] ARM IHI0055C
    http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055c/IHI0055C_beta_aapcs64.pdf

--- a/Documentation/arm64/tagged-pointers.txt
+++ b/Documentation/arm64/tagged-pointers.txt
-		Tagged virtual addresses in AArch64 Linux
+=========================================
-		=========================================
+Tagged virtual addresses in AArch64 Linux
+=========================================
 Author: Will Deacon <will.deacon@arm.com>
 Date  : 12 June 2013
 This document briefly describes the provision of tagged virtual

--- a/Documentation/translations/zh_CN/arm64/booting.txt
+++ b/Documentation/translations/zh_CN/arm64/booting.txt
-Chinese translated version of Documentation/arm64/booting.txt
+Chinese translated version of Documentation/arm64/booting.rst
 If you have any comment or update to the content, please contact the
 original document maintainer directly.  However, if you have a problem
@@ -10,7 +10,7 @@ M:	Will Deacon <will.deacon@arm.com>
 zh_CN:	Fu Wei <wefu@redhat.com>
 C:	55f058e7574c3615dea4615573a19bdb258696c6
 ---------------------------------------------------------------------
-Documentation/arm64/booting.txt 的中文翻译
+Documentation/arm64/booting.rst 的中文翻译
 如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
 交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻

--- a/Documentation/translations/zh_CN/arm64/legacy_instructions.txt
+++ b/Documentation/translations/zh_CN/arm64/legacy_instructions.txt
-Chinese translated version of Documentation/arm64/legacy_instructions.txt
+Chinese translated version of Documentation/arm64/legacy_instructions.rst
 If you have any comment or update to the content, please contact the
 original document maintainer directly.  However, if you have a problem
@@ -10,7 +10,7 @@ Maintainer: Punit Agrawal <punit.agrawal@arm.com>
            Suzuki K. Poulose <suzuki.poulose@arm.com>
 Chinese maintainer: Fu Wei <wefu@redhat.com>
 ---------------------------------------------------------------------
-Documentation/arm64/legacy_instructions.txt 的中文翻译
+Documentation/arm64/legacy_instructions.rst 的中文翻译
 如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
 交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻

--- a/Documentation/translations/zh_CN/arm64/memory.txt
+++ b/Documentation/translations/zh_CN/arm64/memory.txt
-Chinese translated version of Documentation/arm64/memory.txt
+Chinese translated version of Documentation/arm64/memory.rst
 If you have any comment or update to the content, please contact the
 original document maintainer directly.  However, if you have a problem
@@ -9,7 +9,7 @@ or if there is a problem with the translation.
 Maintainer: Catalin Marinas <catalin.marinas@arm.com>
 Chinese maintainer: Fu Wei <wefu@redhat.com>
 ---------------------------------------------------------------------
-Documentation/arm64/memory.txt 的中文翻译
+Documentation/arm64/memory.rst 的中文翻译
 如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
 交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻

--- a/Documentation/translations/zh_CN/arm64/silicon-errata.txt
+++ b/Documentation/translations/zh_CN/arm64/silicon-errata.txt
-Chinese translated version of Documentation/arm64/silicon-errata.txt
+Chinese translated version of Documentation/arm64/silicon-errata.rst
 If you have any comment or update to the content, please contact the
 original document maintainer directly.  However, if you have a problem
@@ -10,7 +10,7 @@ M:	Will Deacon <will.deacon@arm.com>
 zh_CN:	Fu Wei <wefu@redhat.com>
 C:	1926e54f115725a9248d0c4c65c22acaf94de4c4
 ---------------------------------------------------------------------
-Documentation/arm64/silicon-errata.txt 的中文翻译
+Documentation/arm64/silicon-errata.rst 的中文翻译
 如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
 交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻

--- a/Documentation/translations/zh_CN/arm64/tagged-pointers.txt
+++ b/Documentation/translations/zh_CN/arm64/tagged-pointers.txt
-Chinese translated version of Documentation/arm64/tagged-pointers.txt
+Chinese translated version of Documentation/arm64/tagged-pointers.rst
 If you have any comment or update to the content, please contact the
 original document maintainer directly.  However, if you have a problem
@@ -9,7 +9,7 @@ or if there is a problem with the translation.
 Maintainer: Will Deacon <will.deacon@arm.com>
 Chinese maintainer: Fu Wei <wefu@redhat.com>
 ---------------------------------------------------------------------
-Documentation/arm64/tagged-pointers.txt 的中文翻译
+Documentation/arm64/tagged-pointers.rst 的中文翻译
 如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文
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--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -2205,7 +2205,7 @@ max_vq.  This is the maximum vector length available to the guest on
 this vcpu, and determines which register slices are visible through
 this ioctl interface.
-(See Documentation/arm64/sve.txt for an explanation of the "vq"
+(See Documentation/arm64/sve.rst for an explanation of the "vq"
 nomenclature.)
 KVM_REG_ARM64_SVE_VLS is only accessible after KVM_ARM_VCPU_INIT.

--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -83,7 +83,7 @@ static inline unsigned long efi_get_max_fdt_addr(unsigned long dram_base)
 * guaranteed to cover the kernel Image.
 *
 * Since the EFI stub is part of the kernel Image, we can relax the
- * usual requirements in Documentation/arm64/booting.txt, which still
+ * usual requirements in Documentation/arm64/booting.rst, which still
 * apply to other bootloaders, and are required for some kernel
 * configurations.
 */

--- a/arch/arm64/include/asm/image.h
+++ b/arch/arm64/include/asm/image.h
@@ -27,7 +27,7 @@
 /*
 * struct arm64_image_header - arm64 kernel image header
- * See Documentation/arm64/booting.txt for details
+ * See Documentation/arm64/booting.rst for details
 *
 * @code0:		Executable code, or
 *   @mz_header		  alternatively used for part of MZ header

--- a/arch/arm64/include/uapi/asm/sigcontext.h
+++ b/arch/arm64/include/uapi/asm/sigcontext.h
@@ -137,7 +137,7 @@ struct sve_context {
 * vector length beyond its initial architectural limit of 2048 bits
 * (16 quadwords).
 *
- * See linux/Documentation/arm64/sve.txt for a description of the VL/VQ
+ * See linux/Documentation/arm64/sve.rst for a description of the VL/VQ
 * terminology.
 */
 #define SVE_VQ_BYTES		__SVE_VQ_BYTES	/* bytes per quadword */

--- a/arch/arm64/kernel/kexec_image.c
+++ b/arch/arm64/kernel/kexec_image.c
@@ -53,7 +53,7 @@ static void *image_load(struct kimage *image,
 	/*
 	 * We require a kernel with an unambiguous Image header. Per
-	 * Documentation/arm64/booting.txt, this is the case when image_size
+	 * Documentation/arm64/booting.rst, this is the case when image_size
 	 * is non-zero (practically speaking, since v3.17).
 	 */
 	h = (struct arm64_image_header *)kernel;