Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued

Backmerge drm-next to get at the hdmi2.0 helper functions.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

Documentation/ABI/testing/sysfs-bus-pci

@@ -299,5 +299,5 @@ What:		/sys/bus/pci/devices/.../revision
 Date:		November 2016
 Contact:	Emil Velikov <emil.l.velikov@gmail.com>
 Description:
-		This file contains the revision field of the the PCI device.
+		This file contains the revision field of the PCI device.
 		The value comes from device config space. The file is read only.

Documentation/admin-guide/kernel-parameters.txt

@@ -653,6 +653,9 @@
 	cpuidle.off=1	[CPU_IDLE]
 			disable the cpuidle sub-system
 
+	cpufreq.off=1	[CPU_FREQ]
+			disable the cpufreq sub-system
+
 	cpu_init_udelay=N
 			[X86] Delay for N microsec between assert and de-assert
 			of APIC INIT to start processors.  This delay occurs
@@ -1183,6 +1186,12 @@
 			functions that can be changed at run time by the
 			set_graph_notrace file in the debugfs tracing directory.
 
+	ftrace_graph_max_depth=<uint>
+			[FTRACE] Used with the function graph tracer. This is
+			the max depth it will trace into a function. This value
+			can be changed at run time by the max_graph_depth file
+			in the tracefs tracing directory. default: 0 (no limit)
+
 	gamecon.map[2|3]=
 			[HW,JOY] Multisystem joystick and NES/SNES/PSX pad
 			support via parallel port (up to 5 devices per port)

Documentation/admin-guide/security-bugs.rst

@@ -14,14 +14,17 @@ Contact
 The Linux kernel security team can be contacted by email at
 <security@kernel.org>.  This is a private list of security officers
 who will help verify the bug report and develop and release a fix.
-It is possible that the security team will bring in extra help from
+If you already have a fix, please include it with your report, as
-area maintainers to understand and fix the security vulnerability.
+that can speed up the process considerably.  It is possible that the
+security team will bring in extra help from area maintainers to
+understand and fix the security vulnerability.
 
 As it is with any bug, the more information provided the easier it
 will be to diagnose and fix.  Please review the procedure outlined in
-admin-guide/reporting-bugs.rst if you are unclear about what information is helpful.
+admin-guide/reporting-bugs.rst if you are unclear about what
-Any exploit code is very helpful and will not be released without
+information is helpful.  Any exploit code is very helpful and will not
-consent from the reporter unless it has already been made public.
+be released without consent from the reporter unless it has already been
+made public.
 
 Disclosure
 ----------
@@ -39,6 +42,32 @@ disclosure is from immediate (esp. if it's already publicly known)
 to a few weeks.  As a basic default policy, we expect report date to
 disclosure date to be on the order of 7 days.
 
+Coordination
+------------
+
+Fixes for sensitive bugs, such as those that might lead to privilege
+escalations, may need to be coordinated with the private
+<linux-distros@vs.openwall.org> mailing list so that distribution vendors
+are well prepared to issue a fixed kernel upon public disclosure of the
+upstream fix. Distros will need some time to test the proposed patch and
+will generally request at least a few days of embargo, and vendor update
+publication prefers to happen Tuesday through Thursday. When appropriate,
+the security team can assist with this coordination, or the reporter can
+include linux-distros from the start. In this case, remember to prefix
+the email Subject line with "[vs]" as described in the linux-distros wiki:
+<http://oss-security.openwall.org/wiki/mailing-lists/distros#how-to-use-the-lists>
+
+CVE assignment
+--------------
+
+The security team does not normally assign CVEs, nor do we require them
+for reports or fixes, as this can needlessly complicate the process and
+may delay the bug handling. If a reporter wishes to have a CVE identifier
+assigned ahead of public disclosure, they will need to contact the private
+linux-distros list, described above. When such a CVE identifier is known
+before a patch is provided, it is desirable to mention it in the commit
+message, though.
+
 Non-disclosure agreements
 -------------------------
 

Documentation/arm64/silicon-errata.txt

@@ -68,3 +68,4 @@ stable kernels.
 |                |                 |                 |                             |
 | Qualcomm Tech. | 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   |

Documentation/cgroup-v2.txt

@@ -1142,16 +1142,17 @@ used by the kernel.
 
   pids.max
 
- A read-write single value file which exists on non-root cgroups.  The
+	A read-write single value file which exists on non-root
- default is "max".
+	cgroups.  The default is "max".
 
- Hard limit of number of processes.
+	Hard limit of number of processes.
 
   pids.current
 
- A read-only single value file which exists on all cgroups.
+	A read-only single value file which exists on all cgroups.
 
- The number of processes currently in the cgroup and its descendants.
+	The number of processes currently in the cgroup and its
+	descendants.
 
 Organisational operations are not blocked by cgroup policies, so it is
 possible to have pids.current > pids.max.  This can be done by either

Documentation/conf.py

@@ -34,7 +34,7 @@ from load_config import loadConfig
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
-extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include', 'cdomain']
+extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include', 'cdomain', 'kfigure']
 
 # The name of the math extension changed on Sphinx 1.4
 if major == 1 and minor > 3:

Documentation/cpu-freq/cpu-drivers.txt

@@ -231,7 +231,7 @@ the reference implementation in drivers/cpufreq/longrun.c
 Only for drivers with target_index() and CPUFREQ_ASYNC_NOTIFICATION unset.
 
 get_intermediate should return a stable intermediate frequency platform wants to
-switch to, and target_intermediate() should set CPU to to that frequency, before
+switch to, and target_intermediate() should set CPU to that frequency, before
 jumping to the frequency corresponding to 'index'. Core will take care of
 sending notifications and driver doesn't have to handle them in
 target_intermediate() or target_index().

Documentation/dev-tools/kcov.rst

@@ -10,7 +10,7 @@ Note that kcov does not aim to collect as much coverage as possible. It aims
 to collect more or less stable coverage that is function of syscall inputs.
 To achieve this goal it does not collect coverage in soft/hard interrupts
 and instrumentation of some inherently non-deterministic parts of kernel is
-disbled (e.g. scheduler, locking).
+disabled (e.g. scheduler, locking).
 
 Usage
 -----

Documentation/devicetree/bindings/display/brcm,bcm-vc4.txt

@@ -34,6 +34,9 @@ Optional properties for HDMI:
 - hpd-gpios:	The GPIO pin for HDMI hotplug detect (if it doesn't appear
 		  as an interrupt/status bit in the HDMI controller
 		  itself).  See bindings/pinctrl/brcm,bcm2835-gpio.txt
+- dmas:		Should contain one entry pointing to the DMA channel used to
+		transfer audio data
+- dma-names:	Should contain "audio-rx"
 
 Required properties for DPI:
 - compatible:	Should be "brcm,bcm2835-dpi"

Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt

@@ -0,0 +1,64 @@
+Parallel to LVDS Encoder
+------------------------
+
+This binding supports the parallel to LVDS encoders that don't require any
+configuration.
+
+LVDS is a physical layer specification defined in ANSI/TIA/EIA-644-A. Multiple
+incompatible data link layers have been used over time to transmit image data
+to LVDS panels. This binding targets devices compatible with the following
+specifications only.
+
+[JEIDA] "Digital Interface Standards for Monitor", JEIDA-59-1999, February
+1999 (Version 1.0), Japan Electronic Industry Development Association (JEIDA)
+[LDI] "Open LVDS Display Interface", May 1999 (Version 0.95), National
+Semiconductor
+[VESA] "VESA Notebook Panel Standard", October 2007 (Version 1.0), Video
+Electronics Standards Association (VESA)
+
+Those devices have been marketed under the FPD-Link and FlatLink brand names
+among others.
+
+
+Required properties:
+
+- compatible: Must be "lvds-encoder"
+
+Required nodes:
+
+This device has two video ports. Their connections are modeled using the OF
+graph bindings specified in Documentation/devicetree/bindings/graph.txt.
+
+- Video port 0 for parallel input
+- Video port 1 for LVDS output
+
+
+Example
+-------
+
+lvds-encoder {
+	compatible = "lvds-encoder";
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+
+			lvds_enc_in: endpoint {
+				remote-endpoint = <&display_out_rgb>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+
+			lvds_enc_out: endpoint {
+				remote-endpoint = <&lvds_panel_in>;
+			};
+		};
+	};
+};

Documentation/devicetree/bindings/display/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt

@@ -0,0 +1,94 @@
+Drivers for the second video output of the GE B850v3:
+   STDP4028-ge-b850v3-fw bridges (LVDS-DP)
+   STDP2690-ge-b850v3-fw bridges (DP-DP++)
+
+The video processing pipeline on the second output on the GE B850v3:
+
+   Host -> LVDS|--(STDP4028)--|DP -> DP|--(STDP2690)--|DP++ -> Video output
+
+Each bridge has a dedicated flash containing firmware for supporting the custom
+design. The result is that, in this design, neither the STDP4028 nor the
+STDP2690 behave as the stock bridges would. The compatible strings include the
+suffix "-ge-b850v3-fw" to make it clear that the driver is for the bridges with
+the firmware specific for the GE B850v3.
+
+The hardware do not provide control over the video processing pipeline, as the
+two bridges behaves as a single one. The only interfaces exposed by the
+hardware are EDID, HPD, and interrupts.
+
+stdp4028-ge-b850v3-fw required properties:
+  - compatible : "megachips,stdp4028-ge-b850v3-fw"
+  - reg : I2C bus address
+  - interrupt-parent : phandle of the interrupt controller that services
+    interrupts to the device
+  - interrupts : one interrupt should be described here, as in
+    <0 IRQ_TYPE_LEVEL_HIGH>
+  - ports : One input port(reg = <0>) and one output port(reg = <1>)
+
+stdp2690-ge-b850v3-fw required properties:
+    compatible : "megachips,stdp2690-ge-b850v3-fw"
+  - reg : I2C bus address
+  - ports : One input port(reg = <0>) and one output port(reg = <1>)
+
+Example:
+
+&mux2_i2c2 {
+	status = "okay";
+	clock-frequency = <100000>;
+
+	stdp4028@73 {
+		compatible = "megachips,stdp4028-ge-b850v3-fw";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reg = <0x73>;
+
+		interrupt-parent = <&gpio2>;
+		interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				stdp4028_in: endpoint {
+					remote-endpoint = <&lvds0_out>;
+				};
+			};
+			port@1 {
+				reg = <1>;
+				stdp4028_out: endpoint {
+					remote-endpoint = <&stdp2690_in>;
+				};
+			};
+		};
+	};
+
+	stdp2690@72 {
+		compatible = "megachips,stdp2690-ge-b850v3-fw";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reg = <0x72>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				stdp2690_in: endpoint {
+					remote-endpoint = <&stdp4028_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				stdp2690_out: endpoint {
+					/* Connector for external display */
+				};
+			};
+		};
+	};
+};

Documentation/devicetree/bindings/display/imx/fsl-imx-drm.txt

@@ -21,13 +21,19 @@ Freescale i.MX IPUv3
 ====================
 
 Required properties:
-- compatible: Should be "fsl,<chip>-ipu"
+- compatible: Should be "fsl,<chip>-ipu" where <chip> is one of
+  - imx51
+  - imx53
+  - imx6q
+  - imx6qp
 - reg: should be register base and length as documented in the
   datasheet
 - interrupts: Should contain sync interrupt and error interrupt,
   in this order.
 - resets: phandle pointing to the system reset controller and
           reset line index, see reset/fsl,imx-src.txt for details
+Additional required properties for fsl,imx6qp-ipu:
+- fsl,prg: phandle to prg node associated with this IPU instance
 Optional properties:
 - port@[0-3]: Port nodes with endpoint definitions as defined in
   Documentation/devicetree/bindings/media/video-interfaces.txt.
@@ -53,6 +59,57 @@ ipu: ipu@18000000 {
 	};
 };
 
+Freescale i.MX PRE (Prefetch Resolve Engine)
+============================================
+
+Required properties:
+- compatible: should be "fsl,imx6qp-pre"
+- reg: should be register base and length as documented in the
+  datasheet
+- clocks : phandle to the PRE axi clock input, as described
+  in Documentation/devicetree/bindings/clock/clock-bindings.txt and
+  Documentation/devicetree/bindings/clock/imx6q-clock.txt.
+- clock-names: should be "axi"
+- interrupts: should contain the PRE interrupt
+- fsl,iram: phandle pointing to the mmio-sram device node, that should be
+  used for the PRE SRAM double buffer.
+
+example:
+
+pre@21c8000 {
+	compatible = "fsl,imx6qp-pre";
+	reg = <0x021c8000 0x1000>;
+	interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
+	clocks = <&clks IMX6QDL_CLK_PRE0>;
+	clock-names = "axi";
+	fsl,iram = <&ocram2>;
+};
+
+Freescale i.MX PRG (Prefetch Resolve Gasket)
+============================================
+
+Required properties:
+- compatible: should be "fsl,imx6qp-prg"
+- reg: should be register base and length as documented in the
+  datasheet
+- clocks : phandles to the PRG ipg and axi clock inputs, as described
+  in Documentation/devicetree/bindings/clock/clock-bindings.txt and
+  Documentation/devicetree/bindings/clock/imx6q-clock.txt.
+- clock-names: should be "ipg" and "axi"
+- fsl,pres: phandles to the PRE units attached to this PRG, with the fixed
+  PRE as the first entry and the muxable PREs following.
+
+example:
+
+prg@21cc000 {
+	compatible = "fsl,imx6qp-prg";
+	reg = <0x021cc000 0x1000>;
+	clocks = <&clks IMX6QDL_CLK_PRG0_APB>,
+		 <&clks IMX6QDL_CLK_PRG0_AXI>;
+	clock-names = "ipg", "axi";
+	fsl,pres = <&pre1>, <&pre2>, <&pre3>;
+};
+
 Parallel display support
 ========================
 

Documentation/devicetree/bindings/powerpc/4xx/emac.txt

@@ -71,6 +71,9 @@
 			  For Axon it can be absent, though my current driver
 			  doesn't handle phy-address yet so for now, keep
 			  0x00ffffff in it.
+    - phy-handle	: Used to describe configurations where a external PHY
+			  is used. Please refer to:
+			  Documentation/devicetree/bindings/net/ethernet.txt
     - rx-fifo-size-gige : 1 cell, Rx fifo size in bytes for 1000 Mb/sec
 			  operations (if absent the value is the same as
 			  rx-fifo-size).  For Axon, either absent or 2048.
@@ -81,8 +84,22 @@
 			  offload, phandle of the TAH device node.
     - tah-channel       : 1 cell, optional. If appropriate, channel used on the
 			  TAH engine.
+    - fixed-link	: Fixed-link subnode describing a link to a non-MDIO
+			  managed entity. See
+			  Documentation/devicetree/bindings/net/fixed-link.txt
+			  for details.
+    - mdio subnode	: When the EMAC has a phy connected to its local
+			  mdio, which us supported by the kernel's network
+			  PHY library in drivers/net/phy, there must be device
+			  tree subnode with the following required properties:
+				- #address-cells: Must be <1>.
+				- #size-cells: Must be <0>.
 
-    Example:
+			  For PHY definitions: Please refer to
+			  Documentation/devicetree/bindings/net/phy.txt and
+			  Documentation/devicetree/bindings/net/ethernet.txt
+
+    Examples:
 
 	EMAC0: ethernet@40000800 {
 		device_type = "network";
@@ -104,6 +121,48 @@
 		zmii-channel = <0>;
 	};
 
+	EMAC1: ethernet@ef600c00 {
+		device_type = "network";
+		compatible = "ibm,emac-apm821xx", "ibm,emac4sync";
+		interrupt-parent = <&EMAC1>;
+		interrupts = <0 1>;
+		#interrupt-cells = <1>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		interrupt-map = <0 &UIC2 0x10 IRQ_TYPE_LEVEL_HIGH /* Status */
+				 1 &UIC2 0x14 IRQ_TYPE_LEVEL_HIGH /* Wake */>;
+		reg = <0xef600c00 0x000000c4>;
+		local-mac-address = [000000000000]; /* Filled in by U-Boot */
+		mal-device = <&MAL0>;
+		mal-tx-channel = <0>;
+		mal-rx-channel = <0>;
+		cell-index = <0>;
+		max-frame-size = <9000>;
+		rx-fifo-size = <16384>;
+		tx-fifo-size = <2048>;
+		fifo-entry-size = <10>;
+		phy-mode = "rgmii";
+		phy-handle = <&phy0>;
+		phy-map = <0x00000000>;
+		rgmii-device = <&RGMII0>;
+		rgmii-channel = <0>;
+		tah-device = <&TAH0>;
+		tah-channel = <0>;
+		has-inverted-stacr-oc;
+		has-new-stacr-staopc;
+
+	        mdio {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			phy0: ethernet-phy@0 {
+				compatible = "ethernet-phy-ieee802.3-c22";
+				reg = <0>;
+			};
+		};
+	};
+
+
       ii) McMAL node
 
     Required properties:
@@ -145,4 +204,3 @@
     - revision           : as provided by the RGMII new version register if
 			   available.
 			   For Axon: 0x0000012a
-

Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt

@@ -45,7 +45,7 @@ Required Properties:
 Optional Properties:
 - reg-names: In addition to the required properties, the following are optional
   - "efuse-address"	- Contains efuse base address used to pick up ABB info.
-  - "ldo-address"	- Contains address of ABB LDO overide register address.
+  - "ldo-address"	- Contains address of ABB LDO override register.
 	"efuse-address" is required for this.
 - ti,ldovbb-vset-mask	- Required if ldo-address is set, mask for LDO override
 	register to provide override vset value.

Documentation/devicetree/bindings/usb/usb251xb.txt

@@ -7,18 +7,18 @@ Required properties :
  - compatible : Should be "microchip,usb251xb" or one of the specific types:
 	"microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b",
 	"microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi"
- - hub-reset-gpios : Should specify the gpio for hub reset
+ - reset-gpios : Should specify the gpio for hub reset
+ - reg : I2C address on the selected bus (default is <0x2C>)
 
 Optional properties :
- - reg : I2C address on the selected bus (default is <0x2C>)
  - skip-config : Skip Hub configuration, but only send the USB-Attach command
- - vendor-id : USB Vendor ID of the hub (16 bit, default is 0x0424)
+ - vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424)
- - product-id : USB Product ID of the hub (16 bit, default depends on type)
+ - product-id : Set USB Product ID of the hub (16 bit, default depends on type)
- - device-id : USB Device ID of the hub (16 bit, default is 0x0bb3)
+ - device-id : Set USB Device ID of the hub (16 bit, default is 0x0bb3)
- - language-id : USB Language ID (16 bit, default is 0x0000)
+ - language-id : Set USB Language ID (16 bit, default is 0x0000)
- - manufacturer : USB Manufacturer string (max 31 characters long)
+ - manufacturer : Set USB Manufacturer string (max 31 characters long)
- - product : USB Product string (max 31 characters long)
+ - product : Set USB Product string (max 31 characters long)
- - serial : USB Serial string (max 31 characters long)
+ - serial : Set USB Serial string (max 31 characters long)
  - {bus,self}-powered : selects between self- and bus-powered operation (default
 	is self-powered)
  - disable-hi-speed : disable USB Hi-Speed support
@@ -31,8 +31,10 @@ Optional properties :
 	(default is individual)
  - dynamic-power-switching : enable auto-switching from self- to bus-powered
 	operation if the local power source is removed or unavailable
- - oc-delay-{100us,4ms,8ms,16ms} : set over current timer delay (default is 8ms)
+ - oc-delay-us : Delay time (in microseconds) for filtering the over-current
- - compound-device : indicated the hub is part of a compound device
+	sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If
+	an invalid value is given, the default is used instead.
+ - compound-device : indicate the hub is part of a compound device
  - port-mapping-mode : enable port mapping mode
  - string-support : enable string descriptor support (required for manufacturer,
 	product and serial string configuration)
@@ -40,34 +42,15 @@ Optional properties :
 	device connected.
  - sp-disabled-ports : Specifies the ports which will be self-power disabled
  - bp-disabled-ports : Specifies the ports which will be bus-power disabled
- - max-sp-power : Specifies the maximum current the hub consumes from an
+ - power-on-time-ms : Specifies the time it takes from the time the host
-	upstream port when operating as self-powered hub including the power
+	initiates the power-on sequence to a port until the port has adequate
-	consumption of a permanently attached peripheral if the hub is
+	power. The value is given in ms in a 0 - 510 range (default is 100ms).
-	configured as a compound device. The value is given in mA in a 0 - 500
-	range (default is 2).
- - max-bp-power : Specifies the maximum current the hub consumes from an
-	upstream port when operating as bus-powered hub including the power
-	consumption of a permanently attached peripheral if the hub is
-	configured as a compound device. The value is given in mA in a 0 - 500
-	range (default is 100).
- - max-sp-current : Specifies the maximum current the hub consumes from an
-	upstream port when operating as self-powered hub EXCLUDING the power
-	consumption of a permanently attached peripheral if the hub is
-	configured as a compound device. The value is given in mA in a 0 - 500
-	range (default is 2).
- - max-bp-current : Specifies the maximum current the hub consumes from an
-	upstream port when operating as bus-powered hub EXCLUDING the power
-	consumption of a permanently attached peripheral if the hub is
-	configured as a compound device. The value is given in mA in a 0 - 500
-	range (default is 100).
- - power-on-time : Specifies the time it takes from the time the host initiates
-	the power-on sequence to a port until the port has adequate power. The
-	value is given in ms in a 0 - 510 range (default is 100ms).
 
 Examples:
 	usb2512b@2c {
 		compatible = "microchip,usb2512b";
-		hub-reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+		reg = <0x2c>;
+		reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
 	};
 
 	usb2514b@2c {

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -178,6 +178,7 @@ maxim	Maxim Integrated Products
 mcube	mCube
 meas	Measurement Specialties
 mediatek	MediaTek Inc.
+megachips	MegaChips
 melexis	Melexis N.V.
 melfas	MELFAS Inc.
 memsic	MEMSIC Inc.

Documentation/doc-guide/hello.dot

@@ -0,0 +1,3 @@
+graph G {
+      Hello -- World
+}

Documentation/doc-guide/sphinx.rst

@@ -34,8 +34,9 @@ format-specific subdirectories under ``Documentation/output``.
 
 To generate documentation, Sphinx (``sphinx-build``) must obviously be
 installed. For prettier HTML output, the Read the Docs Sphinx theme
-(``sphinx_rtd_theme``) is used if available. For PDF output, ``rst2pdf`` is also
+(``sphinx_rtd_theme``) is used if available. For PDF output you'll also need
-needed. All of these are widely available and packaged in distributions.
+``XeLaTeX`` and ``convert(1)`` from ImageMagick (https://www.imagemagick.org).
+All of these are widely available and packaged in distributions.
 
 To pass extra options to Sphinx, you can use the ``SPHINXOPTS`` make
 variable. For example, use ``make SPHINXOPTS=-v htmldocs`` to get more verbose
@@ -73,7 +74,16 @@ Specific guidelines for the kernel documentation
 
 Here are some specific guidelines for the kernel documentation:
 
-* Please don't go overboard with reStructuredText markup. Keep it simple.
+* Please don't go overboard with reStructuredText markup. Keep it
+  simple. For the most part the documentation should be plain text with
+  just enough consistency in formatting that it can be converted to
+  other formats.
+
+* Please keep the formatting changes minimal when converting existing
+  documentation to reStructuredText.
+
+* Also update the content, not just the formatting, when converting
+  documentation.
 
 * Please stick to this order of heading adornments:
 
@@ -103,6 +113,12 @@ Here are some specific guidelines for the kernel documentation:
   the order as encountered."), having the higher levels the same overall makes
   it easier to follow the documents.
 
+* For inserting fixed width text blocks (for code examples, use case
+  examples, etc.), use ``::`` for anything that doesn't really benefit
+  from syntax highlighting, especially short snippets. Use
+  ``.. code-block:: <language>`` for longer code blocks that benefit
+  from highlighting.
+
 
 the C domain
 ------------
@@ -217,3 +233,96 @@ Rendered as:
       * .. _`last row`:
 
         - column 3
+
+
+Figures & Images
+================
+
+If you want to add an image, you should use the ``kernel-figure`` and
+``kernel-image`` directives. E.g. to insert a figure with a scalable
+image format use SVG (:ref:`svg_image_example`)::
+
+    .. kernel-figure::  svg_image.svg
+       :alt:    simple SVG image
+
+       SVG image example
+
+.. _svg_image_example:
+
+.. kernel-figure::  svg_image.svg
+   :alt:    simple SVG image
+
+   SVG image example
+
+The kernel figure (and image) directive support **DOT** formated files, see
+
+* DOT: http://graphviz.org/pdf/dotguide.pdf
+* Graphviz: http://www.graphviz.org/content/dot-language
+
+A simple example (:ref:`hello_dot_file`)::
+
+  .. kernel-figure::  hello.dot
+     :alt:    hello world
+
+     DOT's hello world example
+
+.. _hello_dot_file:
+
+.. kernel-figure::  hello.dot
+   :alt:    hello world
+
+   DOT's hello world example
+
+Embed *render* markups (or languages) like Graphviz's **DOT** is provided by the
+``kernel-render`` directives.::
+
+  .. kernel-render:: DOT
+     :alt: foobar digraph
+     :caption: Embedded **DOT** (Graphviz) code
+
+     digraph foo {
+      "bar" -> "baz";
+     }
+
+How this will be rendered depends on the installed tools. If Graphviz is
+installed, you will see an vector image. If not the raw markup is inserted as
+*literal-block* (:ref:`hello_dot_render`).
+
+.. _hello_dot_render:
+
+.. kernel-render:: DOT
+   :alt: foobar digraph
+   :caption: Embedded **DOT** (Graphviz) code
+
+   digraph foo {
+      "bar" -> "baz";
+   }
+
+The *render* directive has all the options known from the *figure* directive,
+plus option ``caption``.  If ``caption`` has a value, a *figure* node is
+inserted. If not, a *image* node is inserted. A ``caption`` is also needed, if
+you want to refer it (:ref:`hello_svg_render`).
+
+Embedded **SVG**::
+
+  .. kernel-render:: SVG
+     :caption: Embedded **SVG** markup
+     :alt: so-nw-arrow
+
+     <?xml version="1.0" encoding="UTF-8"?>
+     <svg xmlns="http://www.w3.org/2000/svg" version="1.1" ...>
+        ...
+     </svg>
+
+.. _hello_svg_render:
+
+.. kernel-render:: SVG
+   :caption: Embedded **SVG** markup
+   :alt: so-nw-arrow
+
+   <?xml version="1.0" encoding="UTF-8"?>
+   <svg xmlns="http://www.w3.org/2000/svg"
+     version="1.1" baseProfile="full" width="70px" height="40px" viewBox="0 0 700 400">
+   <line x1="180" y1="370" x2="500" y2="50" stroke="black" stroke-width="15px"/>
+   <polygon points="585 0 525 25 585 50" transform="rotate(135 525 25)"/>
+   </svg>

Documentation/doc-guide/svg_image.svg

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- originate: https://commons.wikimedia.org/wiki/File:Variable_Resistor.svg -->
+<svg xmlns="http://www.w3.org/2000/svg"
+	version="1.1" baseProfile="full"
+	width="70px" height="40px" viewBox="0 0 700 400">
+	<line x1="0" y1="200" x2="700" y2="200" stroke="black" stroke-width="20px"/>
+	<rect x="100" y="100" width="500" height="200" fill="white" stroke="black" stroke-width="20px"/>
+	<line x1="180" y1="370" x2="500" y2="50" stroke="black" stroke-width="15px"/>
+	<polygon points="585 0 525 25 585 50" transform="rotate(135 525 25)"/>
+</svg>

Documentation/gpu/drm-internals.rst

@@ -140,12 +140,12 @@ Device Instance and Driver Handling
 .. kernel-doc:: drivers/gpu/drm/drm_drv.c
    :doc: driver instance overview
 
-.. kernel-doc:: drivers/gpu/drm/drm_drv.c
-   :export:
-
 .. kernel-doc:: include/drm/drm_drv.h
    :internal:
 
+.. kernel-doc:: drivers/gpu/drm/drm_drv.c
+   :export:
+
 Driver Load
 -----------
 
@@ -240,68 +240,19 @@ drivers.
 .. kernel-doc:: drivers/gpu/drm/drm_pci.c
    :export:
 
-.. kernel-doc:: drivers/gpu/drm/drm_platform.c
-   :export:
-
 Open/Close, File Operations and IOCTLs
 ======================================
 
-Open and Close
---------------
-
-Open and close handlers. None of those methods are mandatory::
-
-    int (*firstopen) (struct drm_device *);
-    void (*lastclose) (struct drm_device *);
-    int (*open) (struct drm_device *, struct drm_file *);
-    void (*preclose) (struct drm_device *, struct drm_file *);
-    void (*postclose) (struct drm_device *, struct drm_file *);
-
-The firstopen method is called by the DRM core for legacy UMS (User Mode
-Setting) drivers only when an application opens a device that has no
-other opened file handle. UMS drivers can implement it to acquire device
-resources. KMS drivers can't use the method and must acquire resources
-in the load method instead.
-
-Similarly the lastclose method is called when the last application
-holding a file handle opened on the device closes it, for both UMS and
-KMS drivers. Additionally, the method is also called at module unload
-time or, for hot-pluggable devices, when the device is unplugged. The
-firstopen and lastclose calls can thus be unbalanced.
-
-The open method is called every time the device is opened by an
-application. Drivers can allocate per-file private data in this method
-and store them in the struct :c:type:`struct drm_file
-<drm_file>` driver_priv field. Note that the open method is
-called before firstopen.
-
-The close operation is split into preclose and postclose methods.
-Drivers must stop and cleanup all per-file operations in the preclose
-method. For instance pending vertical blanking and page flip events must
-be cancelled. No per-file operation is allowed on the file handle after
-returning from the preclose method.
-
-Finally the postclose method is called as the last step of the close
-operation, right before calling the lastclose method if no other open
-file handle exists for the device. Drivers that have allocated per-file
-private data in the open method should free it here.
-
-The lastclose method should restore CRTC and plane properties to default
-value, so that a subsequent open of the device will not inherit state
-from the previous user. It can also be used to execute delayed power
-switching state changes, e.g. in conjunction with the :ref:`vga_switcheroo`
-infrastructure. Beyond that KMS drivers should not do any
-further cleanup. Only legacy UMS drivers might need to clean up device
-state so that the vga console or an independent fbdev driver could take
-over.
-
 File Operations
 ---------------
 
-.. kernel-doc:: drivers/gpu/drm/drm_fops.c
+.. kernel-doc:: drivers/gpu/drm/drm_file.c
    :doc: file operations
 
-.. kernel-doc:: drivers/gpu/drm/drm_fops.c
+.. kernel-doc:: include/drm/drm_file.h
+   :internal:
+
+.. kernel-doc:: drivers/gpu/drm/drm_file.c
    :export:
 
 IOCTLs

Documentation/gpu/drm-kms-helpers.rst

@@ -37,10 +37,12 @@ Modeset Helper Reference for Common Vtables
 ===========================================
 
 .. kernel-doc:: include/drm/drm_modeset_helper_vtables.h
-   :internal:
+   :doc: overview
 
 .. kernel-doc:: include/drm/drm_modeset_helper_vtables.h
-   :doc: overview
+   :internal:
+
+.. _drm_atomic_helper:
 
 Atomic Modeset Helper Functions Reference
 =========================================
@@ -84,27 +86,27 @@ Legacy CRTC/Modeset Helper Functions Reference
 Simple KMS Helper Reference
 ===========================
 
+.. kernel-doc:: drivers/gpu/drm/drm_simple_kms_helper.c
+   :doc: overview
+
 .. kernel-doc:: include/drm/drm_simple_kms_helper.h
    :internal:
 
 .. kernel-doc:: drivers/gpu/drm/drm_simple_kms_helper.c
    :export:
 
-.. kernel-doc:: drivers/gpu/drm/drm_simple_kms_helper.c
-   :doc: overview
-
 fbdev Helper Functions Reference
 ================================
 
 .. kernel-doc:: drivers/gpu/drm/drm_fb_helper.c
    :doc: fbdev helpers
 
-.. kernel-doc:: drivers/gpu/drm/drm_fb_helper.c
-   :export:
-
 .. kernel-doc:: include/drm/drm_fb_helper.h
    :internal:
 
+.. kernel-doc:: drivers/gpu/drm/drm_fb_helper.c
+   :export:
+
 Framebuffer CMA Helper Functions Reference
 ==========================================
 
@@ -114,6 +116,8 @@ Framebuffer CMA Helper Functions Reference
 .. kernel-doc:: drivers/gpu/drm/drm_fb_cma_helper.c
    :export:
 
+.. _drm_bridges:
+
 Bridges
 =======
 
@@ -139,18 +143,20 @@ Bridge Helper Reference
 .. kernel-doc:: drivers/gpu/drm/drm_bridge.c
    :export:
 
+.. _drm_panel_helper:
+
 Panel Helper Reference
 ======================
 
+.. kernel-doc:: drivers/gpu/drm/drm_panel.c
+   :doc: drm panel
+
 .. kernel-doc:: include/drm/drm_panel.h
    :internal:
 
 .. kernel-doc:: drivers/gpu/drm/drm_panel.c
    :export:
 
-.. kernel-doc:: drivers/gpu/drm/drm_panel.c
-   :doc: drm panel
-
 Display Port Helper Functions Reference
 =======================================
 
@@ -217,6 +223,18 @@ EDID Helper Functions Reference
 .. kernel-doc:: drivers/gpu/drm/drm_edid.c
    :export:
 
+SCDC Helper Functions Reference
+===============================
+
+.. kernel-doc:: drivers/gpu/drm/drm_scdc_helper.c
+   :doc: scdc helpers
+
+.. kernel-doc:: include/drm/drm_scdc_helper.h
+   :internal:
+
+.. kernel-doc:: drivers/gpu/drm/drm_scdc_helper.c
+   :export:
+
 Rectangle Utilities Reference
 =============================
 

Documentation/gpu/drm-kms.rst

@@ -15,35 +15,271 @@ be setup by initializing the following fields.
 -  struct drm_mode_config_funcs \*funcs;
    Mode setting functions.
 
-Mode Configuration
+Overview
+========
+
+.. kernel-render:: DOT
+   :alt: KMS Display Pipeline
+   :caption: KMS Display Pipeline Overview
+
+   digraph "KMS" {
+      node [shape=box]
+
+      subgraph cluster_static {
+          style=dashed
+          label="Static Objects"
+
+          node [bgcolor=grey style=filled]
+          "drm_plane A" -> "drm_crtc"
+          "drm_plane B" -> "drm_crtc"
+          "drm_crtc" -> "drm_encoder A"
+          "drm_crtc" -> "drm_encoder B"
+      }
+
+      subgraph cluster_user_created {
+          style=dashed
+          label="Userspace-Created"
+
+          node [shape=oval]
+          "drm_framebuffer 1" -> "drm_plane A"
+          "drm_framebuffer 2" -> "drm_plane B"
+      }
+
+      subgraph cluster_connector {
+          style=dashed
+          label="Hotpluggable"
+
+          "drm_encoder A" -> "drm_connector A"
+          "drm_encoder B" -> "drm_connector B"
+      }
+   }
+
+The basic object structure KMS presents to userspace is fairly simple.
+Framebuffers (represented by :c:type:`struct drm_framebuffer <drm_framebuffer>`,
+see `Frame Buffer Abstraction`_) feed into planes. One or more (or even no)
+planes feed their pixel data into a CRTC (represented by :c:type:`struct
+drm_crtc <drm_crtc>`, see `CRTC Abstraction`_) for blending. The precise
+blending step is explained in more detail in `Plane Composition Properties`_ and
+related chapters.
+
+For the output routing the first step is encoders (represented by
+:c:type:`struct drm_encoder <drm_encoder>`, see `Encoder Abstraction`_). Those
+are really just internal artifacts of the helper libraries used to implement KMS
+drivers. Besides that they make it unecessarily more complicated for userspace
+to figure out which connections between a CRTC and a connector are possible, and
+what kind of cloning is supported, they serve no purpose in the userspace API.
+Unfortunately encoders have been exposed to userspace, hence can't remove them
+at this point.  Futhermore the exposed restrictions are often wrongly set by
+drivers, and in many cases not powerful enough to express the real restrictions.
+A CRTC can be connected to multiple encoders, and for an active CRTC there must
+be at least one encoder.
+
+The final, and real, endpoint in the display chain is the connector (represented
+by :c:type:`struct drm_connector <drm_connector>`, see `Connector
+Abstraction`_). Connectors can have different possible encoders, but the kernel
+driver selects which encoder to use for each connector. The use case is DVI,
+which could switch between an analog and a digital encoder. Encoders can also
+drive multiple different connectors. There is exactly one active connector for
+every active encoder.
+
+Internally the output pipeline is a bit more complex and matches today's
+hardware more closely:
+
+.. kernel-render:: DOT
+   :alt: KMS Output Pipeline
+   :caption: KMS Output Pipeline
+
+   digraph "Output Pipeline" {
+      node [shape=box]
+
+      subgraph {
+          "drm_crtc" [bgcolor=grey style=filled]
+      }
+
+      subgraph cluster_internal {
+          style=dashed
+          label="Internal Pipeline"
+          {
+              node [bgcolor=grey style=filled]
+              "drm_encoder A";
+              "drm_encoder B";
+              "drm_encoder C";
+          }
+
+          {
+              node [bgcolor=grey style=filled]
+              "drm_encoder B" -> "drm_bridge B"
+              "drm_encoder C" -> "drm_bridge C1"
+              "drm_bridge C1" -> "drm_bridge C2";
+          }
+      }
+
+      "drm_crtc" -> "drm_encoder A"
+      "drm_crtc" -> "drm_encoder B"
+      "drm_crtc" -> "drm_encoder C"
+
+
+      subgraph cluster_output {
+          style=dashed
+          label="Outputs"
+
+          "drm_encoder A" -> "drm_connector A";
+          "drm_bridge B" -> "drm_connector B";
+          "drm_bridge C2" -> "drm_connector C";
+
+          "drm_panel"
+      }
+   }
+
+Internally two additional helper objects come into play. First, to be able to
+share code for encoders (sometimes on the same SoC, sometimes off-chip) one or
+more :ref:`drm_bridges` (represented by :c:type:`struct drm_bridge
+<drm_bridge>`) can be linked to an encoder. This link is static and cannot be
+changed, which means the cross-bar (if there is any) needs to be mapped between
+the CRTC and any encoders. Often for drivers with bridges there's no code left
+at the encoder level. Atomic drivers can leave out all the encoder callbacks to
+essentially only leave a dummy routing object behind, which is needed for
+backwards compatibility since encoders are exposed to userspace.
+
+The second object is for panels, represented by :c:type:`struct drm_panel
+<drm_panel>`, see :ref:`drm_panel_helper`. Panels do not have a fixed binding
+point, but are generally linked to the driver private structure that embeds
+:c:type:`struct drm_connector <drm_connector>`.
+
+Note that currently the bridge chaining and interactions with connectors and
+panels are still in-flux and not really fully sorted out yet.
 
 KMS Core Structures and Functions
 =================================
 
-.. kernel-doc:: drivers/gpu/drm/drm_mode_config.c
-   :export:
-
 .. kernel-doc:: include/drm/drm_mode_config.h
    :internal:
 
+.. kernel-doc:: drivers/gpu/drm/drm_mode_config.c
+   :export:
+
 Modeset Base Object Abstraction
 ===============================
 
+.. kernel-render:: DOT
+   :alt: Mode Objects and Properties
+   :caption: Mode Objects and Properties
+
+   digraph {
+      node [shape=box]
+
+      "drm_property A" -> "drm_mode_object A"
+      "drm_property A" -> "drm_mode_object B"
+      "drm_property B" -> "drm_mode_object A"
+   }
+
+The base structure for all KMS objects is :c:type:`struct drm_mode_object
+<drm_mode_object>`. One of the base services it provides is tracking properties,
+which are especially important for the atomic IOCTL (see `Atomic Mode
+Setting`_). The somewhat surprising part here is that properties are not
+directly instantiated on each object, but free-standing mode objects themselves,
+represented by :c:type:`struct drm_property <drm_property>`, which only specify
+the type and value range of a property. Any given property can be attached
+multiple times to different objects using :c:func:`drm_object_attach_property()
+<drm_object_attach_property>`.
+
 .. kernel-doc:: include/drm/drm_mode_object.h
    :internal:
 
 .. kernel-doc:: drivers/gpu/drm/drm_mode_object.c
    :export:
 
-Atomic Mode Setting Function Reference
+Atomic Mode Setting
-======================================
+===================
 
-.. kernel-doc:: drivers/gpu/drm/drm_atomic.c
+
-   :export:
+.. kernel-render:: DOT
+   :alt: Mode Objects and Properties
+   :caption: Mode Objects and Properties
+
+   digraph {
+      node [shape=box]
+
+      subgraph cluster_state {
+          style=dashed
+          label="Free-standing state"
+
+          "drm_atomic_state" -> "duplicated drm_plane_state A"
+          "drm_atomic_state" -> "duplicated drm_plane_state B"
+          "drm_atomic_state" -> "duplicated drm_crtc_state"
+          "drm_atomic_state" -> "duplicated drm_connector_state"
+          "drm_atomic_state" -> "duplicated driver private state"
+      }
+
+      subgraph cluster_current {
+          style=dashed
+          label="Current state"
+
+          "drm_device" -> "drm_plane A"
+          "drm_device" -> "drm_plane B"
+          "drm_device" -> "drm_crtc"
+          "drm_device" -> "drm_connector"
+          "drm_device" -> "driver private object"
+
+          "drm_plane A" -> "drm_plane_state A"
+          "drm_plane B" -> "drm_plane_state B"
+          "drm_crtc" -> "drm_crtc_state"
+          "drm_connector" -> "drm_connector_state"
+          "driver private object" -> "driver private state"
+      }
+
+      "drm_atomic_state" -> "drm_device" [label="atomic_commit"]
+      "duplicated drm_plane_state A" -> "drm_device"[style=invis]
+   }
+
+Atomic provides transactional modeset (including planes) updates, but a
+bit differently from the usual transactional approach of try-commit and
+rollback:
+
+- Firstly, no hardware changes are allowed when the commit would fail. This
+  allows us to implement the DRM_MODE_ATOMIC_TEST_ONLY mode, which allows
+  userspace to explore whether certain configurations would work or not.
+
+- This would still allow setting and rollback of just the software state,
+  simplifying conversion of existing drivers. But auditing drivers for
+  correctness of the atomic_check code becomes really hard with that: Rolling
+  back changes in data structures all over the place is hard to get right.
+
+- Lastly, for backwards compatibility and to support all use-cases, atomic
+  updates need to be incremental and be able to execute in parallel. Hardware
+  doesn't always allow it, but where possible plane updates on different CRTCs
+  should not interfere, and not get stalled due to output routing changing on
+  different CRTCs.
+
+Taken all together there's two consequences for the atomic design:
+
+- The overall state is split up into per-object state structures:
+  :c:type:`struct drm_plane_state <drm_plane_state>` for planes, :c:type:`struct
+  drm_crtc_state <drm_crtc_state>` for CRTCs and :c:type:`struct
+  drm_connector_state <drm_connector_state>` for connectors. These are the only
+  objects with userspace-visible and settable state. For internal state drivers
+  can subclass these structures through embeddeding, or add entirely new state
+  structures for their globally shared hardware functions.
+
+- An atomic update is assembled and validated as an entirely free-standing pile
+  of structures within the :c:type:`drm_atomic_state <drm_atomic_state>`
+  container. Again drivers can subclass that container for their own state
+  structure tracking needs. Only when a state is committed is it applied to the
+  driver and modeset objects. This way rolling back an update boils down to
+  releasing memory and unreferencing objects like framebuffers.
+
+Read on in this chapter, and also in :ref:`drm_atomic_helper` for more detailed
+coverage of specific topics.
+
+Atomic Mode Setting Function Reference
+--------------------------------------
 
 .. kernel-doc:: include/drm/drm_atomic.h
    :internal:
 
+.. kernel-doc:: drivers/gpu/drm/drm_atomic.c
+   :export:
+
 CRTC Abstraction
 ================
 
@@ -68,12 +304,12 @@ Frame Buffer Abstraction
 Frame Buffer Functions Reference
 --------------------------------
 
-.. kernel-doc:: drivers/gpu/drm/drm_framebuffer.c
-   :export:
-
 .. kernel-doc:: include/drm/drm_framebuffer.h
    :internal:
 
+.. kernel-doc:: drivers/gpu/drm/drm_framebuffer.c
+   :export:
+
 DRM Format Handling
 ===================
 
@@ -376,8 +612,8 @@ operation handler.
 Vertical Blanking and Interrupt Handling Functions Reference
 ------------------------------------------------------------
 
-.. kernel-doc:: drivers/gpu/drm/drm_irq.c
-   :export:
-
 .. kernel-doc:: include/drm/drm_irq.h
    :internal:
+
+.. kernel-doc:: drivers/gpu/drm/drm_irq.c
+   :export:

Documentation/gpu/drm-mm.rst

@@ -365,36 +365,36 @@ from the client in libdrm.
 GEM Function Reference
 ----------------------
 
-.. kernel-doc:: drivers/gpu/drm/drm_gem.c
-   :export:
-
 .. kernel-doc:: include/drm/drm_gem.h
    :internal:
 
+.. kernel-doc:: drivers/gpu/drm/drm_gem.c
+   :export:
+
 GEM CMA Helper Functions Reference
 ----------------------------------
 
 .. kernel-doc:: drivers/gpu/drm/drm_gem_cma_helper.c
    :doc: cma helpers
 
-.. kernel-doc:: drivers/gpu/drm/drm_gem_cma_helper.c
-   :export:
-
 .. kernel-doc:: include/drm/drm_gem_cma_helper.h
    :internal:
 
+.. kernel-doc:: drivers/gpu/drm/drm_gem_cma_helper.c
+   :export:
+
 VMA Offset Manager
 ==================
 
 .. kernel-doc:: drivers/gpu/drm/drm_vma_manager.c
    :doc: vma offset manager
 
-.. kernel-doc:: drivers/gpu/drm/drm_vma_manager.c
-   :export:
-
 .. kernel-doc:: include/drm/drm_vma_manager.h
    :internal:
 
+.. kernel-doc:: drivers/gpu/drm/drm_vma_manager.c
+   :export:
+
 PRIME Buffer Sharing
 ====================
 
@@ -449,6 +449,9 @@ PRIME Helper Functions
 PRIME Function References
 -------------------------
 
+.. kernel-doc:: include/drm/drm_prime.h
+   :internal:
+
 .. kernel-doc:: drivers/gpu/drm/drm_prime.c
    :export:
 
@@ -470,12 +473,12 @@ LRU Scan/Eviction Support
 DRM MM Range Allocator Function References
 ------------------------------------------
 
-.. kernel-doc:: drivers/gpu/drm/drm_mm.c
-   :export:
-
 .. kernel-doc:: include/drm/drm_mm.h
    :internal:
 
+.. kernel-doc:: drivers/gpu/drm/drm_mm.c
+   :export:
+
 DRM Cache Handling
 ==================
 

Documentation/gpu/drm-uapi.rst

@@ -21,6 +21,8 @@ libdrm Device Lookup
    :doc: getunique and setversion story
 
 
+.. _drm_primary_node:
+
 Primary Nodes, DRM Master and Authentication
 ============================================
 
@@ -103,6 +105,8 @@ is already rather painful for the DRM subsystem, with multiple different uAPIs
 for the same thing co-existing. If we add a few more complete mistakes into the
 mix every year it would be entirely unmanageable.
 
+.. _drm_render_node:
+
 Render nodes
 ============
 

Documentation/gpu/todo.rst

@@ -153,6 +153,19 @@ following drivers still use ``struct_mutex``: ``msm``, ``omapdrm`` and
 
 Contact: Daniel Vetter
 
+Switch to drm_connector_list_iter for any connector_list walking
+----------------------------------------------------------------
+
+Connectors can be hotplugged, and we now have a special list of helpers to walk
+the connector_list in a race-free fashion, without incurring deadlocks on
+mutexes and other fun stuff.
+
+Unfortunately most drivers are not converted yet. At least all those supporting
+DP MST hotplug should be converted, since for those drivers the difference
+matters. See drm_for_each_connector_iter() vs. drm_for_each_connector().
+
+Contact: Daniel Vetter
+
 Core refactorings
 =================
 

Documentation/networking/ip-sysctl.txt

@@ -1006,7 +1006,8 @@ accept_redirects - BOOLEAN
 		FALSE (router)
 
 forwarding - BOOLEAN
-	Enable IP forwarding on this interface.
+	Enable IP forwarding on this interface.  This controls whether packets
+	received _on_ this interface can be forwarded.
 
 mc_forwarding - BOOLEAN
 	Do multicast routing. The kernel needs to be compiled with CONFIG_MROUTE

Documentation/phy.txt

@@ -97,7 +97,7 @@ should contain the phy name as given in the dt data and in the case of
 non-dt boot, it should contain the label of the PHY.  The two
 devm_phy_get associates the device with the PHY using devres on
 successful PHY get. On driver detach, release function is invoked on
-the the devres data and devres data is freed. phy_optional_get and
+the devres data and devres data is freed. phy_optional_get and
 devm_phy_optional_get should be used when the phy is optional. These
 two functions will never return -ENODEV, but instead returns NULL when
 the phy cannot be found.Some generic drivers, such as ehci, may use multiple

Documentation/process/changes.rst

@@ -318,9 +318,10 @@ PDF outputs, it is recommended to use version 1.4.6.
 .. note::
 
   Please notice that, for PDF and LaTeX output, you'll also need ``XeLaTeX``
-  version 3.14159265. Depending on the distribution, you may also need
+  version 3.14159265. Depending on the distribution, you may also need to
-  to install a series of ``texlive`` packages that provide the minimal
+  install a series of ``texlive`` packages that provide the minimal set of
-  set of functionalities required for ``XeLaTex`` to work.
+  functionalities required for ``XeLaTex`` to work. For PDF output you'll also
+  need ``convert(1)`` from ImageMagick (https://www.imagemagick.org).
 
 Other tools
 -----------

Documentation/sphinx/kfigure.py

@@ -0,0 +1,551 @@
+# -*- coding: utf-8; mode: python -*-
+# pylint: disable=C0103, R0903, R0912, R0915
+u"""
+    scalable figure and image handling
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    Sphinx extension which implements scalable image handling.
+
+    :copyright:  Copyright (C) 2016  Markus Heiser
+    :license:    GPL Version 2, June 1991 see Linux/COPYING for details.
+
+    The build for image formats depend on image's source format and output's
+    destination format. This extension implement methods to simplify image
+    handling from the author's POV. Directives like ``kernel-figure`` implement
+    methods *to* always get the best output-format even if some tools are not
+    installed. For more details take a look at ``convert_image(...)`` which is
+    the core of all conversions.
+
+    * ``.. kernel-image``: for image handling / a ``.. image::`` replacement
+
+    * ``.. kernel-figure``: for figure handling / a ``.. figure::`` replacement
+
+    * ``.. kernel-render``: for render markup / a concept to embed *render*
+      markups (or languages). Supported markups (see ``RENDER_MARKUP_EXT``)
+
+      - ``DOT``: render embedded Graphviz's **DOC**
+      - ``SVG``: render embedded Scalable Vector Graphics (**SVG**)
+      - ... *developable*
+
+    Used tools:
+
+    * ``dot(1)``: Graphviz (http://www.graphviz.org). If Graphviz is not
+      available, the DOT language is inserted as literal-block.
+
+    * SVG to PDF: To generate PDF, you need at least one of this tools:
+
+      - ``convert(1)``: ImageMagick (https://www.imagemagick.org)
+
+    List of customizations:
+
+    * generate PDF from SVG / used by PDF (LaTeX) builder
+
+    * generate SVG (html-builder) and PDF (latex-builder) from DOT files.
+      DOT: see http://www.graphviz.org/content/dot-language
+
+    """
+
+import os
+from os import path
+import subprocess
+from hashlib import sha1
+import sys
+
+from docutils import nodes
+from docutils.statemachine import ViewList
+from docutils.parsers.rst import directives
+from docutils.parsers.rst.directives import images
+import sphinx
+
+from sphinx.util.nodes import clean_astext
+from six import iteritems
+
+PY3 = sys.version_info[0] == 3
+
+if PY3:
+    _unicode = str
+else:
+    _unicode = unicode
+
+# Get Sphinx version
+major, minor, patch = sphinx.version_info[:3]
+if major == 1 and minor > 3:
+    # patches.Figure only landed in Sphinx 1.4
+    from sphinx.directives.patches import Figure  # pylint: disable=C0413
+else:
+    Figure = images.Figure
+
+__version__  = '1.0.0'
+
+# simple helper
+# -------------
+
+def which(cmd):
+    """Searches the ``cmd`` in the ``PATH`` enviroment.
+
+    This *which* searches the PATH for executable ``cmd`` . First match is
+    returned, if nothing is found, ``None` is returned.
+    """
+    envpath = os.environ.get('PATH', None) or os.defpath
+    for folder in envpath.split(os.pathsep):
+        fname = folder + os.sep + cmd
+        if path.isfile(fname):
+            return fname
+
+def mkdir(folder, mode=0o775):
+    if not path.isdir(folder):
+        os.makedirs(folder, mode)
+
+def file2literal(fname):
+    with open(fname, "r") as src:
+        data = src.read()
+        node = nodes.literal_block(data, data)
+    return node
+
+def isNewer(path1, path2):
+    """Returns True if ``path1`` is newer than ``path2``
+
+    If ``path1`` exists and is newer than ``path2`` the function returns
+    ``True`` is returned otherwise ``False``
+    """
+    return (path.exists(path1)
+            and os.stat(path1).st_ctime > os.stat(path2).st_ctime)
+
+def pass_handle(self, node):           # pylint: disable=W0613
+    pass
+
+# setup conversion tools and sphinx extension
+# -------------------------------------------
+
+# Graphviz's dot(1) support
+dot_cmd = None
+
+# ImageMagick' convert(1) support
+convert_cmd = None
+
+
+def setup(app):
+    # check toolchain first
+    app.connect('builder-inited', setupTools)
+
+    # image handling
+    app.add_directive("kernel-image",  KernelImage)
+    app.add_node(kernel_image,
+                 html    = (visit_kernel_image, pass_handle),
+                 latex   = (visit_kernel_image, pass_handle),
+                 texinfo = (visit_kernel_image, pass_handle),
+                 text    = (visit_kernel_image, pass_handle),
+                 man     = (visit_kernel_image, pass_handle), )
+
+    # figure handling
+    app.add_directive("kernel-figure", KernelFigure)
+    app.add_node(kernel_figure,
+                 html    = (visit_kernel_figure, pass_handle),
+                 latex   = (visit_kernel_figure, pass_handle),
+                 texinfo = (visit_kernel_figure, pass_handle),
+                 text    = (visit_kernel_figure, pass_handle),
+                 man     = (visit_kernel_figure, pass_handle), )
+
+    # render handling
+    app.add_directive('kernel-render', KernelRender)
+    app.add_node(kernel_render,
+                 html    = (visit_kernel_render, pass_handle),
+                 latex   = (visit_kernel_render, pass_handle),
+                 texinfo = (visit_kernel_render, pass_handle),
+                 text    = (visit_kernel_render, pass_handle),
+                 man     = (visit_kernel_render, pass_handle), )
+
+    app.connect('doctree-read', add_kernel_figure_to_std_domain)
+
+    return dict(
+        version = __version__,
+        parallel_read_safe = True,
+        parallel_write_safe = True
+    )
+
+
+def setupTools(app):
+    u"""
+    Check available build tools and log some *verbose* messages.
+
+    This function is called once, when the builder is initiated.
+    """
+    global dot_cmd, convert_cmd   # pylint: disable=W0603
+    app.verbose("kfigure: check installed tools ...")
+
+    dot_cmd = which('dot')
+    convert_cmd = which('convert')
+
+    if dot_cmd:
+        app.verbose("use dot(1) from: " + dot_cmd)
+    else:
+        app.warn("dot(1) not found, for better output quality install "
+                 "graphviz from http://www.graphviz.org")
+    if convert_cmd:
+        app.verbose("use convert(1) from: " + convert_cmd)
+    else:
+        app.warn(
+            "convert(1) not found, for SVG to PDF conversion install "
+            "ImageMagick (https://www.imagemagick.org)")
+
+
+# integrate conversion tools
+# --------------------------
+
+RENDER_MARKUP_EXT = {
+    # The '.ext' must be handled by convert_image(..) function's *in_ext* input.
+    # <name> : <.ext>
+    'DOT' : '.dot',
+    'SVG' : '.svg'
+}
+
+def convert_image(img_node, translator, src_fname=None):
+    """Convert a image node for the builder.
+
+    Different builder prefer different image formats, e.g. *latex* builder
+    prefer PDF while *html* builder prefer SVG format for images.
+
+    This function handles output image formats in dependence of source the
+    format (of the image) and the translator's output format.
+    """
+    app = translator.builder.app
+
+    fname, in_ext = path.splitext(path.basename(img_node['uri']))
+    if src_fname is None:
+        src_fname = path.join(translator.builder.srcdir, img_node['uri'])
+        if not path.exists(src_fname):
+            src_fname = path.join(translator.builder.outdir, img_node['uri'])
+
+    dst_fname = None
+
+    # in kernel builds, use 'make SPHINXOPTS=-v' to see verbose messages
+
+    app.verbose('assert best format for: ' + img_node['uri'])
+
+    if in_ext == '.dot':
+
+        if not dot_cmd:
+            app.verbose("dot from graphviz not available / include DOT raw.")
+            img_node.replace_self(file2literal(src_fname))
+
+        elif translator.builder.format == 'latex':
+            dst_fname = path.join(translator.builder.outdir, fname + '.pdf')
+            img_node['uri'] = fname + '.pdf'
+            img_node['candidates'] = {'*': fname + '.pdf'}
+
+
+        elif translator.builder.format == 'html':
+            dst_fname = path.join(
+                translator.builder.outdir,
+                translator.builder.imagedir,
+                fname + '.svg')
+            img_node['uri'] = path.join(
+                translator.builder.imgpath, fname + '.svg')
+            img_node['candidates'] = {
+                '*': path.join(translator.builder.imgpath, fname + '.svg')}
+
+        else:
+            # all other builder formats will include DOT as raw
+            img_node.replace_self(file2literal(src_fname))
+
+    elif in_ext == '.svg':
+
+        if translator.builder.format == 'latex':
+            if convert_cmd is None:
+                app.verbose("no SVG to PDF conversion available / include SVG raw.")
+                img_node.replace_self(file2literal(src_fname))
+            else:
+                dst_fname = path.join(translator.builder.outdir, fname + '.pdf')
+                img_node['uri'] = fname + '.pdf'
+                img_node['candidates'] = {'*': fname + '.pdf'}
+
+    if dst_fname:
+        # the builder needs not to copy one more time, so pop it if exists.
+        translator.builder.images.pop(img_node['uri'], None)
+        _name = dst_fname[len(translator.builder.outdir) + 1:]
+
+        if isNewer(dst_fname, src_fname):
+            app.verbose("convert: {out}/%s already exists and is newer" % _name)
+
+        else:
+            ok = False
+            mkdir(path.dirname(dst_fname))
+
+            if in_ext == '.dot':
+                app.verbose('convert DOT to: {out}/' + _name)
+                ok = dot2format(app, src_fname, dst_fname)
+
+            elif in_ext == '.svg':
+                app.verbose('convert SVG to: {out}/' + _name)
+                ok = svg2pdf(app, src_fname, dst_fname)
+
+            if not ok:
+                img_node.replace_self(file2literal(src_fname))
+
+
+def dot2format(app, dot_fname, out_fname):
+    """Converts DOT file to ``out_fname`` using ``dot(1)``.
+
+    * ``dot_fname`` pathname of the input DOT file, including extension ``.dot``
+    * ``out_fname`` pathname of the output file, including format extension
+
+    The *format extension* depends on the ``dot`` command (see ``man dot``
+    option ``-Txxx``). Normally you will use one of the following extensions:
+
+    - ``.ps`` for PostScript,
+    - ``.svg`` or ``svgz`` for Structured Vector Graphics,
+    - ``.fig`` for XFIG graphics and
+    - ``.png`` or ``gif`` for common bitmap graphics.
+
+    """
+    out_format = path.splitext(out_fname)[1][1:]
+    cmd = [dot_cmd, '-T%s' % out_format, dot_fname]
+    exit_code = 42
+
+    with open(out_fname, "w") as out:
+        exit_code = subprocess.call(cmd, stdout = out)
+        if exit_code != 0:
+            app.warn("Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
+    return bool(exit_code == 0)
+
+def svg2pdf(app, svg_fname, pdf_fname):
+    """Converts SVG to PDF with ``convert(1)`` command.
+
+    Uses ``convert(1)`` from ImageMagick (https://www.imagemagick.org) for
+    conversion.  Returns ``True`` on success and ``False`` if an error occurred.
+
+    * ``svg_fname`` pathname of the input SVG file with extension (``.svg``)
+    * ``pdf_name``  pathname of the output PDF file with extension (``.pdf``)
+
+    """
+    cmd = [convert_cmd, svg_fname, pdf_fname]
+    # use stdout and stderr from parent
+    exit_code = subprocess.call(cmd)
+    if exit_code != 0:
+        app.warn("Error #%d when calling: %s" % (exit_code, " ".join(cmd)))
+    return bool(exit_code == 0)
+
+
+# image handling
+# ---------------------
+
+def visit_kernel_image(self, node):    # pylint: disable=W0613
+    """Visitor of the ``kernel_image`` Node.
+
+    Handles the ``image`` child-node with the ``convert_image(...)``.
+    """
+    img_node = node[0]
+    convert_image(img_node, self)
+
+class kernel_image(nodes.image):
+    """Node for ``kernel-image`` directive."""
+    pass
+
+class KernelImage(images.Image):
+    u"""KernelImage directive
+
+    Earns everything from ``.. image::`` directive, except *remote URI* and
+    *glob* pattern. The KernelImage wraps a image node into a
+    kernel_image node. See ``visit_kernel_image``.
+    """
+
+    def run(self):
+        uri = self.arguments[0]
+        if uri.endswith('.*') or uri.find('://') != -1:
+            raise self.severe(
+                'Error in "%s: %s": glob pattern and remote images are not allowed'
+                % (self.name, uri))
+        result = images.Image.run(self)
+        if len(result) == 2 or isinstance(result[0], nodes.system_message):
+            return result
+        (image_node,) = result
+        # wrap image node into a kernel_image node / see visitors
+        node = kernel_image('', image_node)
+        return [node]
+
+# figure handling
+# ---------------------
+
+def visit_kernel_figure(self, node):   # pylint: disable=W0613
+    """Visitor of the ``kernel_figure`` Node.
+
+    Handles the ``image`` child-node with the ``convert_image(...)``.
+    """
+    img_node = node[0][0]
+    convert_image(img_node, self)
+
+class kernel_figure(nodes.figure):
+    """Node for ``kernel-figure`` directive."""
+
+class KernelFigure(Figure):
+    u"""KernelImage directive
+
+    Earns everything from ``.. figure::`` directive, except *remote URI* and
+    *glob* pattern.  The KernelFigure wraps a figure node into a kernel_figure
+    node. See ``visit_kernel_figure``.
+    """
+
+    def run(self):
+        uri = self.arguments[0]
+        if uri.endswith('.*') or uri.find('://') != -1:
+            raise self.severe(
+                'Error in "%s: %s":'
+                ' glob pattern and remote images are not allowed'
+                % (self.name, uri))
+        result = Figure.run(self)
+        if len(result) == 2 or isinstance(result[0], nodes.system_message):
+            return result
+        (figure_node,) = result
+        # wrap figure node into a kernel_figure node / see visitors
+        node = kernel_figure('', figure_node)
+        return [node]
+
+
+# render handling
+# ---------------------
+
+def visit_kernel_render(self, node):
+    """Visitor of the ``kernel_render`` Node.
+
+    If rendering tools available, save the markup of the ``literal_block`` child
+    node into a file and replace the ``literal_block`` node with a new created
+    ``image`` node, pointing to the saved markup file. Afterwards, handle the
+    image child-node with the ``convert_image(...)``.
+    """
+    app = self.builder.app
+    srclang = node.get('srclang')
+
+    app.verbose('visit kernel-render node lang: "%s"' % (srclang))
+
+    tmp_ext = RENDER_MARKUP_EXT.get(srclang, None)
+    if tmp_ext is None:
+        app.warn('kernel-render: "%s" unknow / include raw.' % (srclang))
+        return
+
+    if not dot_cmd and tmp_ext == '.dot':
+        app.verbose("dot from graphviz not available / include raw.")
+        return
+
+    literal_block = node[0]
+
+    code      = literal_block.astext()
+    hashobj   = code.encode('utf-8') #  str(node.attributes)
+    fname     = path.join('%s-%s' % (srclang, sha1(hashobj).hexdigest()))
+
+    tmp_fname = path.join(
+        self.builder.outdir, self.builder.imagedir, fname + tmp_ext)
+
+    if not path.isfile(tmp_fname):
+        mkdir(path.dirname(tmp_fname))
+        with open(tmp_fname, "w") as out:
+            out.write(code)
+
+    img_node = nodes.image(node.rawsource, **node.attributes)
+    img_node['uri'] = path.join(self.builder.imgpath, fname + tmp_ext)
+    img_node['candidates'] = {
+        '*': path.join(self.builder.imgpath, fname + tmp_ext)}
+
+    literal_block.replace_self(img_node)
+    convert_image(img_node, self, tmp_fname)
+
+
+class kernel_render(nodes.General, nodes.Inline, nodes.Element):
+    """Node for ``kernel-render`` directive."""
+    pass
+
+class KernelRender(Figure):
+    u"""KernelRender directive
+
+    Render content by external tool.  Has all the options known from the
+    *figure*  directive, plus option ``caption``.  If ``caption`` has a
+    value, a figure node with the *caption* is inserted. If not, a image node is
+    inserted.
+
+    The KernelRender directive wraps the text of the directive into a
+    literal_block node and wraps it into a kernel_render node. See
+    ``visit_kernel_render``.
+    """
+    has_content = True
+    required_arguments = 1
+    optional_arguments = 0
+    final_argument_whitespace = False
+
+    # earn options from 'figure'
+    option_spec = Figure.option_spec.copy()
+    option_spec['caption'] = directives.unchanged
+
+    def run(self):
+        return [self.build_node()]
+
+    def build_node(self):
+
+        srclang = self.arguments[0].strip()
+        if srclang not in RENDER_MARKUP_EXT.keys():
+            return [self.state_machine.reporter.warning(
+                'Unknow source language "%s", use one of: %s.' % (
+                    srclang, ",".join(RENDER_MARKUP_EXT.keys())),
+                line=self.lineno)]
+
+        code = '\n'.join(self.content)
+        if not code.strip():
+            return [self.state_machine.reporter.warning(
+                'Ignoring "%s" directive without content.' % (
+                    self.name),
+                line=self.lineno)]
+
+        node = kernel_render()
+        node['alt'] = self.options.get('alt','')
+        node['srclang'] = srclang
+        literal_node = nodes.literal_block(code, code)
+        node += literal_node
+
+        caption = self.options.get('caption')
+        if caption:
+            # parse caption's content
+            parsed = nodes.Element()
+            self.state.nested_parse(
+                ViewList([caption], source=''), self.content_offset, parsed)
+            caption_node = nodes.caption(
+                parsed[0].rawsource, '', *parsed[0].children)
+            caption_node.source = parsed[0].source
+            caption_node.line = parsed[0].line
+
+            figure_node = nodes.figure('', node)
+            for k,v in self.options.items():
+                figure_node[k] = v
+            figure_node += caption_node
+
+            node = figure_node
+
+        return node
+
+def add_kernel_figure_to_std_domain(app, doctree):
+    """Add kernel-figure anchors to 'std' domain.
+
+    The ``StandardDomain.process_doc(..)`` method does not know how to resolve
+    the caption (label) of ``kernel-figure`` directive (it only knows about
+    standard nodes, e.g. table, figure etc.). Without any additional handling
+    this will result in a 'undefined label' for kernel-figures.
+
+    This handle adds labels of kernel-figure to the 'std' domain labels.
+    """
+
+    std = app.env.domains["std"]
+    docname = app.env.docname
+    labels = std.data["labels"]
+
+    for name, explicit in iteritems(doctree.nametypes):
+        if not explicit:
+            continue
+        labelid = doctree.nameids[name]
+        if labelid is None:
+            continue
+        node = doctree.ids[labelid]
+
+        if node.tagname == 'kernel_figure':
+            for n in node.next_node():
+                if n.tagname == 'caption':
+                    sectname = clean_astext(n)
+                    # add label to std domain
+                    labels[name] = docname, labelid, sectname
+                    break

Documentation/trace/kprobetrace.txt

@@ -12,7 +12,7 @@ kprobes can probe (this means, all functions body except for __kprobes
 functions). Unlike the Tracepoint based event, this can be added and removed
 dynamically, on the fly.
 
-To enable this feature, build your kernel with CONFIG_KPROBE_EVENT=y.
+To enable this feature, build your kernel with CONFIG_KPROBE_EVENTS=y.
 
 Similar to the events tracer, this doesn't need to be activated via
 current_tracer. Instead of that, add probe points via

Documentation/trace/uprobetracer.txt

@@ -7,7 +7,7 @@
 Overview
 --------
 Uprobe based trace events are similar to kprobe based trace events.
-To enable this feature, build your kernel with CONFIG_UPROBE_EVENT=y.
+To enable this feature, build your kernel with CONFIG_UPROBE_EVENTS=y.
 
 Similar to the kprobe-event tracer, this doesn't need to be activated via
 current_tracer. Instead of that, add probe points via

Documentation/virtual/kvm/api.txt

@@ -951,6 +951,10 @@ This ioctl allows the user to create or modify a guest physical memory
 slot.  When changing an existing slot, it may be moved in the guest
 physical memory space, or its flags may be modified.  It may not be
 resized.  Slots may not overlap in guest physical address space.
+Bits 0-15 of "slot" specifies the slot id and this value should be
+less than the maximum number of user memory slots supported per VM.
+The maximum allowed slots can be queried using KVM_CAP_NR_MEMSLOTS,
+if this capability is supported by the architecture.
 
 If KVM_CAP_MULTI_ADDRESS_SPACE is available, bits 16-31 of "slot"
 specifies the address space which is being modified.  They must be

Documentation/vm/userfaultfd.txt

@@ -172,10 +172,6 @@ the same read(2) protocol as for the page fault notifications. The
 manager has to explicitly enable these events by setting appropriate
 bits in uffdio_api.features passed to UFFDIO_API ioctl:
 
-UFFD_FEATURE_EVENT_EXIT - enable notification about exit() of the
-non-cooperative process. When the monitored process exits, the uffd
-manager will get UFFD_EVENT_EXIT.
-
 UFFD_FEATURE_EVENT_FORK - enable userfaultfd hooks for fork(). When
 this feature is enabled, the userfaultfd context of the parent process
 is duplicated into the newly created process. The manager receives

MAINTAINERS

@@ -8123,6 +8123,14 @@ L:	linux-wireless@vger.kernel.org
 S:	Maintained
 F:	drivers/net/wireless/mediatek/mt7601u/
 
+MEGACHIPS STDPXXXX-GE-B850V3-FW LVDS/DP++ BRIDGES
+M:	Peter Senna Tschudin <peter.senna@collabora.com>
+M:	Martin Donnelly <martin.donnelly@ge.com>
+M:	Martyn Welch <martyn.welch@collabora.co.uk>
+S:	Maintained
+F:	drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+F:	Documentation/devicetree/bindings/video/bridge/megachips-stdpxxxx-ge-b850v3-fw.txt
+
 MEGARAID SCSI/SAS DRIVERS
 M:	Kashyap Desai <kashyap.desai@broadcom.com>
 M:	Sumit Saxena <sumit.saxena@broadcom.com>
@@ -8313,7 +8321,6 @@ M:	Richard Leitner <richard.leitner@skidata.com>
 L:	linux-usb@vger.kernel.org
 S:	Maintained
 F:	drivers/usb/misc/usb251xb.c
-F:	include/linux/platform_data/usb251xb.h
 F:	Documentation/devicetree/bindings/usb/usb251xb.txt
 
 MICROSOFT SURFACE PRO 3 BUTTON DRIVER

Makefile

@@ -1,7 +1,7 @@
 VERSION = 4
 PATCHLEVEL = 11
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc3
 NAME = Fearless Coyote
 
 # *DOCUMENTATION*

arch/arc/include/asm/hugepage.h

@@ -11,6 +11,7 @@
 #define _ASM_ARC_HUGEPAGE_H
 
 #include <linux/types.h>
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 static inline pte_t pmd_pte(pmd_t pmd)

arch/arc/include/asm/pgtable.h

@@ -37,6 +37,7 @@
 
 #include <asm/page.h>
 #include <asm/mmu.h>
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 #include <linux/const.h>
 

arch/arm/include/asm/kvm_arm.h

@@ -209,6 +209,7 @@
 #define HSR_EC_IABT_HYP	(0x21)
 #define HSR_EC_DABT	(0x24)
 #define HSR_EC_DABT_HYP	(0x25)
+#define HSR_EC_MAX	(0x3f)
 
 #define HSR_WFI_IS_WFE		(_AC(1, UL) << 0)
 

arch/arm/include/asm/kvm_host.h

@@ -30,7 +30,6 @@
 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
 
 #define KVM_USER_MEM_SLOTS 32
-#define KVM_PRIVATE_MEM_SLOTS 4
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
 #define KVM_HAVE_ONE_REG
 #define KVM_HALT_POLL_NS_DEFAULT 500000

arch/arm/include/asm/pgtable.h

@@ -20,6 +20,7 @@
 
 #else
 
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopud.h>
 #include <asm/memory.h>
 #include <asm/pgtable-hwdef.h>

arch/arm/kvm/arm.c

@@ -221,6 +221,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
 		break;
+	case KVM_CAP_NR_MEMSLOTS:
+		r = KVM_USER_MEM_SLOTS;
+		break;
 	case KVM_CAP_MSI_DEVID:
 		if (!kvm)
 			r = -EINVAL;

arch/arm/kvm/handle_exit.c

@@ -79,7 +79,19 @@ static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
 	return 1;
 }
 
+static int kvm_handle_unknown_ec(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	u32 hsr = kvm_vcpu_get_hsr(vcpu);
+
+	kvm_pr_unimpl("Unknown exception class: hsr: %#08x\n",
+		      hsr);
+
+	kvm_inject_undefined(vcpu);
+	return 1;
+}
+
 static exit_handle_fn arm_exit_handlers[] = {
+	[0 ... HSR_EC_MAX]	= kvm_handle_unknown_ec,
 	[HSR_EC_WFI]		= kvm_handle_wfx,
 	[HSR_EC_CP15_32]	= kvm_handle_cp15_32,
 	[HSR_EC_CP15_64]	= kvm_handle_cp15_64,
@@ -98,13 +110,6 @@ static exit_handle_fn kvm_get_exit_handler(struct kvm_vcpu *vcpu)
 {
 	u8 hsr_ec = kvm_vcpu_trap_get_class(vcpu);
 
-	if (hsr_ec >= ARRAY_SIZE(arm_exit_handlers) ||
-	    !arm_exit_handlers[hsr_ec]) {
-		kvm_err("Unknown exception class: hsr: %#08x\n",
-			(unsigned int)kvm_vcpu_get_hsr(vcpu));
-		BUG();
-	}
-
 	return arm_exit_handlers[hsr_ec];
 }
 

arch/arm/tools/syscall.tbl

@@ -411,3 +411,4 @@
 394	common	pkey_mprotect		sys_pkey_mprotect
 395	common	pkey_alloc		sys_pkey_alloc
 396	common	pkey_free		sys_pkey_free
+397	common	statx			sys_statx

arch/arm/xen/mm.c

@@ -198,6 +198,8 @@ static const struct dma_map_ops xen_swiotlb_dma_ops = {
 	.unmap_page = xen_swiotlb_unmap_page,
 	.dma_supported = xen_swiotlb_dma_supported,
 	.set_dma_mask = xen_swiotlb_set_dma_mask,
+	.mmap = xen_swiotlb_dma_mmap,
+	.get_sgtable = xen_swiotlb_get_sgtable,
 };
 
 int __init xen_mm_init(void)

arch/arm64/Kconfig

@@ -508,6 +508,16 @@ config QCOM_FALKOR_ERRATUM_1009
 
 	  If unsure, say Y.
 
+config QCOM_QDF2400_ERRATUM_0065
+	bool "QDF2400 E0065: Incorrect GITS_TYPER.ITT_Entry_size"
+	default y
+	help
+	  On Qualcomm Datacenter Technologies QDF2400 SoC, ITS hardware reports
+	  ITE size incorrectly. The GITS_TYPER.ITT_Entry_size field should have
+	  been indicated as 16Bytes (0xf), not 8Bytes (0x7).
+
+	  If unsure, say Y.
+
 endmenu
 
 
@@ -1063,6 +1073,10 @@ config SYSVIPC_COMPAT
 	def_bool y
 	depends on COMPAT && SYSVIPC
 
+config KEYS_COMPAT
+	def_bool y
+	depends on COMPAT && KEYS
+
 endmenu
 
 menu "Power management options"

arch/arm64/include/asm/cpufeature.h

@@ -251,7 +251,7 @@ static inline bool system_supports_fpsimd(void)
 static inline bool system_uses_ttbr0_pan(void)
 {
 	return IS_ENABLED(CONFIG_ARM64_SW_TTBR0_PAN) &&
-		!cpus_have_cap(ARM64_HAS_PAN);
+		!cpus_have_const_cap(ARM64_HAS_PAN);
 }
 
 #endif /* __ASSEMBLY__ */

arch/arm64/include/asm/kvm_host.h

@@ -30,8 +30,7 @@
 
 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
 
-#define KVM_USER_MEM_SLOTS 32
+#define KVM_USER_MEM_SLOTS 512
-#define KVM_PRIVATE_MEM_SLOTS 4
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
 #define KVM_HALT_POLL_NS_DEFAULT 500000
 

arch/arm64/include/asm/pgtable-types.h

@@ -55,9 +55,13 @@ typedef struct { pteval_t pgprot; } pgprot_t;
 #define __pgprot(x)	((pgprot_t) { (x) } )
 
 #if CONFIG_PGTABLE_LEVELS == 2
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 #elif CONFIG_PGTABLE_LEVELS == 3
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopud.h>
+#elif CONFIG_PGTABLE_LEVELS == 4
+#include <asm-generic/5level-fixup.h>
 #endif
 
 #endif	/* __ASM_PGTABLE_TYPES_H */

arch/arm64/kernel/cpuidle.c

@@ -30,7 +30,7 @@ int arm_cpuidle_init(unsigned int cpu)
 }
 
 /**
- * cpu_suspend() - function to enter a low-power idle state
+ * arm_cpuidle_suspend() - function to enter a low-power idle state
  * @arg: argument to pass to CPU suspend operations
  *
  * Return: 0 on success, -EOPNOTSUPP if CPU suspend hook not initialized, CPU

arch/arm64/kernel/probes/kprobes.c

@@ -372,12 +372,6 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr)
 	return 0;
 }
 
-int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
-				       unsigned long val, void *data)
-{
-	return NOTIFY_DONE;
-}
-
 static void __kprobes kprobe_handler(struct pt_regs *regs)
 {
 	struct kprobe *p, *cur_kprobe;

arch/arm64/kvm/handle_exit.c

@@ -135,7 +135,19 @@ static int kvm_handle_guest_debug(struct kvm_vcpu *vcpu, struct kvm_run *run)
 	return ret;
 }
 
+static int kvm_handle_unknown_ec(struct kvm_vcpu *vcpu, struct kvm_run *run)
+{
+	u32 hsr = kvm_vcpu_get_hsr(vcpu);
+
+	kvm_pr_unimpl("Unknown exception class: hsr: %#08x -- %s\n",
+		      hsr, esr_get_class_string(hsr));
+
+	kvm_inject_undefined(vcpu);
+	return 1;
+}
+
 static exit_handle_fn arm_exit_handlers[] = {
+	[0 ... ESR_ELx_EC_MAX]	= kvm_handle_unknown_ec,
 	[ESR_ELx_EC_WFx]	= kvm_handle_wfx,
 	[ESR_ELx_EC_CP15_32]	= kvm_handle_cp15_32,
 	[ESR_ELx_EC_CP15_64]	= kvm_handle_cp15_64,
@@ -162,13 +174,6 @@ static exit_handle_fn kvm_get_exit_handler(struct kvm_vcpu *vcpu)
 	u32 hsr = kvm_vcpu_get_hsr(vcpu);
 	u8 hsr_ec = ESR_ELx_EC(hsr);
 
-	if (hsr_ec >= ARRAY_SIZE(arm_exit_handlers) ||
-	    !arm_exit_handlers[hsr_ec]) {
-		kvm_err("Unknown exception class: hsr: %#08x -- %s\n",
-			hsr, esr_get_class_string(hsr));
-		BUG();
-	}
-
 	return arm_exit_handlers[hsr_ec];
 }
 

arch/arm64/kvm/hyp/tlb.c

@@ -18,14 +18,62 @@
 #include <asm/kvm_hyp.h>
 #include <asm/tlbflush.h>
 
+static void __hyp_text __tlb_switch_to_guest_vhe(struct kvm *kvm)
+{
+	u64 val;
+
+	/*
+	 * With VHE enabled, we have HCR_EL2.{E2H,TGE} = {1,1}, and
+	 * most TLB operations target EL2/EL0. In order to affect the
+	 * guest TLBs (EL1/EL0), we need to change one of these two
+	 * bits. Changing E2H is impossible (goodbye TTBR1_EL2), so
+	 * let's flip TGE before executing the TLB operation.
+	 */
+	write_sysreg(kvm->arch.vttbr, vttbr_el2);
+	val = read_sysreg(hcr_el2);
+	val &= ~HCR_TGE;
+	write_sysreg(val, hcr_el2);
+	isb();
+}
+
+static void __hyp_text __tlb_switch_to_guest_nvhe(struct kvm *kvm)
+{
+	write_sysreg(kvm->arch.vttbr, vttbr_el2);
+	isb();
+}
+
+static hyp_alternate_select(__tlb_switch_to_guest,
+			    __tlb_switch_to_guest_nvhe,
+			    __tlb_switch_to_guest_vhe,
+			    ARM64_HAS_VIRT_HOST_EXTN);
+
+static void __hyp_text __tlb_switch_to_host_vhe(struct kvm *kvm)
+{
+	/*
+	 * We're done with the TLB operation, let's restore the host's
+	 * view of HCR_EL2.
+	 */
+	write_sysreg(0, vttbr_el2);
+	write_sysreg(HCR_HOST_VHE_FLAGS, hcr_el2);
+}
+
+static void __hyp_text __tlb_switch_to_host_nvhe(struct kvm *kvm)
+{
+	write_sysreg(0, vttbr_el2);
+}
+
+static hyp_alternate_select(__tlb_switch_to_host,
+			    __tlb_switch_to_host_nvhe,
+			    __tlb_switch_to_host_vhe,
+			    ARM64_HAS_VIRT_HOST_EXTN);
+
 void __hyp_text __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
 {
 	dsb(ishst);
 
 	/* Switch to requested VMID */
 	kvm = kern_hyp_va(kvm);
-	write_sysreg(kvm->arch.vttbr, vttbr_el2);
+	__tlb_switch_to_guest()(kvm);
-	isb();
 
 	/*
 	 * We could do so much better if we had the VA as well.
@@ -46,7 +94,7 @@ void __hyp_text __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
 	dsb(ish);
 	isb();
 
-	write_sysreg(0, vttbr_el2);
+	__tlb_switch_to_host()(kvm);
 }
 
 void __hyp_text __kvm_tlb_flush_vmid(struct kvm *kvm)
@@ -55,14 +103,13 @@ void __hyp_text __kvm_tlb_flush_vmid(struct kvm *kvm)
 
 	/* Switch to requested VMID */
 	kvm = kern_hyp_va(kvm);
-	write_sysreg(kvm->arch.vttbr, vttbr_el2);
+	__tlb_switch_to_guest()(kvm);
-	isb();
 
 	__tlbi(vmalls12e1is);
 	dsb(ish);
 	isb();
 
-	write_sysreg(0, vttbr_el2);
+	__tlb_switch_to_host()(kvm);
 }
 
 void __hyp_text __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu)
@@ -70,14 +117,13 @@ void __hyp_text __kvm_tlb_flush_local_vmid(struct kvm_vcpu *vcpu)
 	struct kvm *kvm = kern_hyp_va(kern_hyp_va(vcpu)->kvm);
 
 	/* Switch to requested VMID */
-	write_sysreg(kvm->arch.vttbr, vttbr_el2);
+	__tlb_switch_to_guest()(kvm);
-	isb();
 
 	__tlbi(vmalle1);
 	dsb(nsh);
 	isb();
 
-	write_sysreg(0, vttbr_el2);
+	__tlb_switch_to_host()(kvm);
 }
 
 void __hyp_text __kvm_flush_vm_context(void)

arch/arm64/mm/kasan_init.c

@@ -162,7 +162,7 @@ void __init kasan_init(void)
 	clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
 
 	vmemmap_populate(kimg_shadow_start, kimg_shadow_end,
-			 pfn_to_nid(virt_to_pfn(_text)));
+			 pfn_to_nid(virt_to_pfn(lm_alias(_text))));
 
 	/*
 	 * vmemmap_populate() has populated the shadow region that covers the

arch/avr32/include/asm/pgtable-2level.h

@@ -8,6 +8,7 @@
 #ifndef __ASM_AVR32_PGTABLE_2LEVEL_H
 #define __ASM_AVR32_PGTABLE_2LEVEL_H
 
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 /*

arch/avr32/oprofile/backtrace.c

@@ -14,7 +14,7 @@
  */
 
 #include <linux/oprofile.h>
-#include <linux/sched.h>
+#include <linux/ptrace.h>
 #include <linux/uaccess.h>
 
 /* The first two words of each frame on the stack look like this if we have

arch/cris/arch-v32/drivers/cryptocop.c

@@ -2086,7 +2086,7 @@ static void cryptocop_job_queue_close(void)
 		dma_in_cfg.en = regk_dma_no;
 		REG_WR(dma, IN_DMA_INST, rw_cfg, dma_in_cfg);
 
-		/* Disble the cryptocop. */
+		/* Disable the cryptocop. */
 		rw_cfg = REG_RD(strcop, regi_strcop, rw_cfg);
 		rw_cfg.en = 0;
 		REG_WR(strcop, regi_strcop, rw_cfg, rw_cfg);

arch/cris/include/asm/pgtable.h

@@ -6,6 +6,7 @@
 #define _CRIS_PGTABLE_H
 
 #include <asm/page.h>
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 #ifndef __ASSEMBLY__

arch/frv/include/asm/pgtable.h

@@ -16,6 +16,7 @@
 #ifndef _ASM_PGTABLE_H
 #define _ASM_PGTABLE_H
 
+#include <asm-generic/5level-fixup.h>
 #include <asm/mem-layout.h>
 #include <asm/setup.h>
 #include <asm/processor.h>

arch/h8300/include/asm/pgtable.h

@@ -1,5 +1,6 @@
 #ifndef _H8300_PGTABLE_H
 #define _H8300_PGTABLE_H
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopud.h>
 #include <asm-generic/pgtable.h>
 #define pgtable_cache_init()   do { } while (0)

arch/h8300/kernel/ptrace_h.c

@@ -9,7 +9,7 @@
  */
 
 #include <linux/linkage.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <asm/ptrace.h>
 
 #define BREAKINST 0x5730 /* trapa #3 */

arch/hexagon/include/asm/pgtable.h

@@ -26,6 +26,7 @@
  */
 #include <linux/swap.h>
 #include <asm/page.h>
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 /* A handy thing to have if one has the RAM. Declared in head.S */

arch/ia64/include/asm/pgtable.h

@@ -587,8 +587,10 @@ extern struct page *zero_page_memmap_ptr;
 
 
 #if CONFIG_PGTABLE_LEVELS == 3
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopud.h>
 #endif
+#include <asm-generic/5level-fixup.h>
 #include <asm-generic/pgtable.h>
 
 #endif /* _ASM_IA64_PGTABLE_H */

arch/metag/include/asm/pgtable.h

@@ -6,6 +6,7 @@
 #define _METAG_PGTABLE_H
 
 #include <asm/pgtable-bits.h>
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 /* Invalid regions on Meta: 0x00000000-0x001FFFFF and 0xFFFF0000-0xFFFFFFFF */

arch/microblaze/include/asm/page.h

@@ -95,7 +95,8 @@ typedef struct { unsigned long pgd; } pgd_t;
 #   else /* CONFIG_MMU */
 typedef struct { unsigned long	ste[64]; }	pmd_t;
 typedef struct { pmd_t		pue[1]; }	pud_t;
-typedef struct { pud_t		pge[1]; }	pgd_t;
+typedef struct { pud_t		p4e[1]; }	p4d_t;
+typedef struct { p4d_t		pge[1]; }	pgd_t;
 #   endif /* CONFIG_MMU */
 
 # define pte_val(x)	((x).pte)

arch/mips/cavium-octeon/cpu.c

@@ -10,7 +10,9 @@
 #include <linux/irqflags.h>
 #include <linux/notifier.h>
 #include <linux/prefetch.h>
+#include <linux/ptrace.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/cop2.h>
 #include <asm/current.h>

arch/mips/cavium-octeon/crypto/octeon-crypto.c

@@ -9,6 +9,7 @@
 #include <asm/cop2.h>
 #include <linux/export.h>
 #include <linux/interrupt.h>
+#include <linux/sched/task_stack.h>
 
 #include "octeon-crypto.h"
 

arch/mips/cavium-octeon/smp.c

@@ -12,6 +12,7 @@
 #include <linux/kernel_stat.h>
 #include <linux/sched.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/init.h>
 #include <linux/export.h>
 

arch/mips/include/asm/fpu.h

@@ -12,6 +12,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/task_stack.h>
+#include <linux/ptrace.h>
 #include <linux/thread_info.h>
 #include <linux/bitops.h>
 

arch/mips/include/asm/pgtable-32.h

@@ -16,6 +16,7 @@
 #include <asm/cachectl.h>
 #include <asm/fixmap.h>
 
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 extern int temp_tlb_entry;

arch/mips/include/asm/pgtable-64.h

@@ -17,6 +17,7 @@
 #include <asm/cachectl.h>
 #include <asm/fixmap.h>
 
+#define __ARCH_USE_5LEVEL_HACK
 #if defined(CONFIG_PAGE_SIZE_64KB) && !defined(CONFIG_MIPS_VA_BITS_48)
 #include <asm-generic/pgtable-nopmd.h>
 #else

arch/mips/kernel/smp-bmips.c

@@ -11,6 +11,7 @@
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/sched/hotplug.h>
+#include <linux/sched/task_stack.h>
 #include <linux/mm.h>
 #include <linux/delay.h>
 #include <linux/smp.h>

arch/mips/kernel/smp-mt.c

@@ -23,6 +23,7 @@
 #include <linux/interrupt.h>
 #include <linux/irqchip/mips-gic.h>
 #include <linux/compiler.h>
+#include <linux/sched/task_stack.h>
 #include <linux/smp.h>
 
 #include <linux/atomic.h>

arch/mips/loongson64/loongson-3/cop2-ex.c

@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/notifier.h>
+#include <linux/ptrace.h>
 
 #include <asm/fpu.h>
 #include <asm/cop2.h>

arch/mips/netlogic/common/smp.c

@@ -35,6 +35,7 @@
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/init.h>
+#include <linux/sched/task_stack.h>
 #include <linux/smp.h>
 #include <linux/irq.h>
 

arch/mips/netlogic/xlp/cop2-ex.c

@@ -9,11 +9,14 @@
  * Copyright (C) 2009 Wind River Systems,
  *   written by Ralf Baechle <ralf@linux-mips.org>
  */
+#include <linux/capability.h>
 #include <linux/init.h>
 #include <linux/irqflags.h>
 #include <linux/notifier.h>
 #include <linux/prefetch.h>
+#include <linux/ptrace.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 
 #include <asm/cop2.h>
 #include <asm/current.h>

arch/mips/sgi-ip22/ip28-berr.c

@@ -9,6 +9,7 @@
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/signal.h>
 #include <linux/seq_file.h>
 
 #include <asm/addrspace.h>

arch/mips/sgi-ip27/ip27-berr.c

@@ -12,7 +12,9 @@
 #include <linux/signal.h>	/* for SIGBUS */
 #include <linux/sched.h>	/* schow_regs(), force_sig() */
 #include <linux/sched/debug.h>
+#include <linux/sched/signal.h>
 
+#include <asm/ptrace.h>
 #include <asm/sn/addrs.h>
 #include <asm/sn/arch.h>
 #include <asm/sn/sn0/hub.h>

arch/mips/sgi-ip27/ip27-smp.c

@@ -8,10 +8,13 @@
  */
 #include <linux/init.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/topology.h>
 #include <linux/nodemask.h>
+
 #include <asm/page.h>
 #include <asm/processor.h>
+#include <asm/ptrace.h>
 #include <asm/sn/arch.h>
 #include <asm/sn/gda.h>
 #include <asm/sn/intr.h>

arch/mips/sgi-ip32/ip32-berr.c

@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/signal.h>
 #include <asm/traps.h>
 #include <linux/uaccess.h>
 #include <asm/addrspace.h>

arch/mips/sgi-ip32/ip32-reset.c

@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/notifier.h>
 #include <linux/delay.h>
 #include <linux/rtc/ds1685.h>

arch/mn10300/include/asm/page.h

@@ -57,6 +57,7 @@ typedef struct page *pgtable_t;
 #define __pgd(x)	((pgd_t) { (x) })
 #define __pgprot(x)	((pgprot_t) { (x) })
 
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 #endif /* !__ASSEMBLY__ */

arch/nios2/include/asm/pgtable.h

@@ -22,6 +22,7 @@
 #include <asm/tlbflush.h>
 
 #include <asm/pgtable-bits.h>
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 #define FIRST_USER_ADDRESS	0UL

arch/openrisc/include/asm/cmpxchg.h

@@ -77,7 +77,11 @@ static inline unsigned long __xchg(unsigned long val, volatile void *ptr,
 	return val;
 }
 
-#define xchg(ptr, with) \
+#define xchg(ptr, with) 						\
-	((typeof(*(ptr)))__xchg((unsigned long)(with), (ptr), sizeof(*(ptr))))
+	({								\
+		(__typeof__(*(ptr))) __xchg((unsigned long)(with),	\
+					    (ptr),			\
+					    sizeof(*(ptr)));		\
+	})
 
 #endif /* __ASM_OPENRISC_CMPXCHG_H */

arch/openrisc/include/asm/pgtable.h

@@ -25,6 +25,7 @@
 #ifndef __ASM_OPENRISC_PGTABLE_H
 #define __ASM_OPENRISC_PGTABLE_H
 
+#define __ARCH_USE_5LEVEL_HACK
 #include <asm-generic/pgtable-nopmd.h>
 
 #ifndef __ASSEMBLY__

arch/openrisc/include/asm/uaccess.h

@@ -211,7 +211,7 @@ do {									\
 	case 1: __get_user_asm(x, ptr, retval, "l.lbz"); break;		\
 	case 2: __get_user_asm(x, ptr, retval, "l.lhz"); break;		\
 	case 4: __get_user_asm(x, ptr, retval, "l.lwz"); break;		\
-	case 8: __get_user_asm2(x, ptr, retval);			\
+	case 8: __get_user_asm2(x, ptr, retval); break;			\
 	default: (x) = __get_user_bad();				\
 	}								\
 } while (0)

arch/openrisc/kernel/or32_ksyms.c

@@ -30,6 +30,7 @@
 #include <asm/hardirq.h>
 #include <asm/delay.h>
 #include <asm/pgalloc.h>
+#include <asm/pgtable.h>
 
 #define DECLARE_EXPORT(name) extern void name(void); EXPORT_SYMBOL(name)
 
@@ -42,6 +43,9 @@ DECLARE_EXPORT(__muldi3);
 DECLARE_EXPORT(__ashrdi3);
 DECLARE_EXPORT(__ashldi3);
 DECLARE_EXPORT(__lshrdi3);
+DECLARE_EXPORT(__ucmpdi2);
 
+EXPORT_SYMBOL(empty_zero_page);
 EXPORT_SYMBOL(__copy_tofrom_user);
+EXPORT_SYMBOL(__clear_user);
 EXPORT_SYMBOL(memset);

arch/openrisc/kernel/process.c

@@ -90,6 +90,7 @@ void arch_cpu_idle(void)
 }
 
 void (*pm_power_off) (void) = machine_power_off;
+EXPORT_SYMBOL(pm_power_off);
 
 /*
  * When a process does an "exec", machine state like FPU and debug

arch/parisc/include/asm/cacheflush.h

@@ -43,28 +43,9 @@ static inline void flush_kernel_dcache_page(struct page *page)
 
 #define flush_kernel_dcache_range(start,size) \
 	flush_kernel_dcache_range_asm((start), (start)+(size));
-/* vmap range flushes and invalidates.  Architecturally, we don't need
- * the invalidate, because the CPU should refuse to speculate once an
- * area has been flushed, so invalidate is left empty */
-static inline void flush_kernel_vmap_range(void *vaddr, int size)
-{
-	unsigned long start = (unsigned long)vaddr;
 
-	flush_kernel_dcache_range_asm(start, start + size);
+void flush_kernel_vmap_range(void *vaddr, int size);
-}
+void invalidate_kernel_vmap_range(void *vaddr, int size);
-static inline void invalidate_kernel_vmap_range(void *vaddr, int size)
-{
-	unsigned long start = (unsigned long)vaddr;
-	void *cursor = vaddr;
-
-	for ( ; cursor < vaddr + size; cursor += PAGE_SIZE) {
-		struct page *page = vmalloc_to_page(cursor);
-
-		if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
-			flush_kernel_dcache_page(page);
-	}
-	flush_kernel_dcache_range_asm(start, start + size);
-}
 
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()

arch/parisc/include/asm/uaccess.h

@@ -32,7 +32,8 @@
  * that put_user is the same as __put_user, etc.
  */
 
-#define access_ok(type, uaddr, size) (1)
+#define access_ok(type, uaddr, size)	\
+	( (uaddr) == (uaddr) )
 
 #define put_user __put_user
 #define get_user __get_user

arch/parisc/include/uapi/asm/unistd.h

@@ -362,8 +362,9 @@
 #define __NR_copy_file_range	(__NR_Linux + 346)
 #define __NR_preadv2		(__NR_Linux + 347)
 #define __NR_pwritev2		(__NR_Linux + 348)
+#define __NR_statx		(__NR_Linux + 349)
 
-#define __NR_Linux_syscalls	(__NR_pwritev2 + 1)
+#define __NR_Linux_syscalls	(__NR_statx + 1)
 
 
 #define __IGNORE_select		/* newselect */

arch/parisc/kernel/cache.c

@@ -616,3 +616,25 @@ flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long
 		__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
 	}
 }
+
+void flush_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long start = (unsigned long)vaddr;
+
+	if ((unsigned long)size > parisc_cache_flush_threshold)
+		flush_data_cache();
+	else
+		flush_kernel_dcache_range_asm(start, start + size);
+}
+EXPORT_SYMBOL(flush_kernel_vmap_range);
+
+void invalidate_kernel_vmap_range(void *vaddr, int size)
+{
+	unsigned long start = (unsigned long)vaddr;
+
+	if ((unsigned long)size > parisc_cache_flush_threshold)
+		flush_data_cache();
+	else
+		flush_kernel_dcache_range_asm(start, start + size);
+}
+EXPORT_SYMBOL(invalidate_kernel_vmap_range);

arch/parisc/kernel/module.c

@@ -620,6 +620,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			 */
 			*loc = fsel(val, addend); 
 			break;
+		case R_PARISC_SECREL32:
+			/* 32-bit section relative address. */
+			*loc = fsel(val, addend);
+			break;
 		case R_PARISC_DPREL21L:
 			/* left 21 bit of relative address */
 			val = lrsel(val - dp, addend);
@@ -807,6 +811,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
 			 */
 			*loc = fsel(val, addend); 
 			break;
+		case R_PARISC_SECREL32:
+			/* 32-bit section relative address. */
+			*loc = fsel(val, addend);
+			break;
 		case R_PARISC_FPTR64:
 			/* 64-bit function address */
 			if(in_local(me, (void *)(val + addend))) {

arch/parisc/kernel/perf.c

@@ -39,7 +39,7 @@
  *  the PDC INTRIGUE calls.  This is done to eliminate bugs introduced
  *  in various PDC revisions.  The code is much more maintainable
  *  and reliable this way vs having to debug on every version of PDC
- *  on every box. 
+ *  on every box.
  */
 
 #include <linux/capability.h>
@@ -195,8 +195,8 @@ static int perf_config(uint32_t *image_ptr);
 static int perf_release(struct inode *inode, struct file *file);
 static int perf_open(struct inode *inode, struct file *file);
 static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos);
-static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 
+static ssize_t perf_write(struct file *file, const char __user *buf,
-	loff_t *ppos);
+	size_t count, loff_t *ppos);
 static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
 static void perf_start_counters(void);
 static int perf_stop_counters(uint32_t *raddr);
@@ -222,7 +222,7 @@ extern void perf_intrigue_disable_perf_counters (void);
 /*
  * configure:
  *
- * Configure the cpu with a given data image.  First turn off the counters, 
+ * Configure the cpu with a given data image.  First turn off the counters,
  * then download the image, then turn the counters back on.
  */
 static int perf_config(uint32_t *image_ptr)
@@ -234,7 +234,7 @@ static int perf_config(uint32_t *image_ptr)
 	error = perf_stop_counters(raddr);
 	if (error != 0) {
 		printk("perf_config: perf_stop_counters = %ld\n", error);
-		return -EINVAL; 
+		return -EINVAL;
 	}
 
 printk("Preparing to write image\n");
@@ -242,7 +242,7 @@ printk("Preparing to write image\n");
 	error = perf_write_image((uint64_t *)image_ptr);
 	if (error != 0) {
 		printk("perf_config: DOWNLOAD = %ld\n", error);
-		return -EINVAL; 
+		return -EINVAL;
 	}
 
 printk("Preparing to start counters\n");
@@ -254,7 +254,7 @@ printk("Preparing to start counters\n");
 }
 
 /*
- * Open the device and initialize all of its memory.  The device is only 
+ * Open the device and initialize all of its memory.  The device is only
  * opened once, but can be "queried" by multiple processes that know its
  * file descriptor.
  */
@@ -298,19 +298,19 @@ static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t
  * called on the processor that the download should happen
  * on.
  */
-static ssize_t perf_write(struct file *file, const char __user *buf, size_t count, 
+static ssize_t perf_write(struct file *file, const char __user *buf,
-	loff_t *ppos)
+	size_t count, loff_t *ppos)
 {
 	size_t image_size;
 	uint32_t image_type;
 	uint32_t interface_type;
 	uint32_t test;
 
-	if (perf_processor_interface == ONYX_INTF) 
+	if (perf_processor_interface == ONYX_INTF)
 		image_size = PCXU_IMAGE_SIZE;
-	else if (perf_processor_interface == CUDA_INTF) 
+	else if (perf_processor_interface == CUDA_INTF)
 		image_size = PCXW_IMAGE_SIZE;
-	else 
+	else
 		return -EFAULT;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -330,22 +330,22 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
 
 	/* First check the machine type is correct for
 	   the requested image */
-        if (((perf_processor_interface == CUDA_INTF) &&
+	if (((perf_processor_interface == CUDA_INTF) &&
-		       (interface_type != CUDA_INTF)) ||
+			(interface_type != CUDA_INTF)) ||
-	    ((perf_processor_interface == ONYX_INTF) &&
+		((perf_processor_interface == ONYX_INTF) &&
-	               (interface_type != ONYX_INTF))) 
+			(interface_type != ONYX_INTF)))
 		return -EINVAL;
 
 	/* Next check to make sure the requested image
 	   is valid */
-	if (((interface_type == CUDA_INTF) && 
+	if (((interface_type == CUDA_INTF) &&
 		       (test >= MAX_CUDA_IMAGES)) ||
-	    ((interface_type == ONYX_INTF) && 
+	    ((interface_type == ONYX_INTF) &&
-		       (test >= MAX_ONYX_IMAGES))) 
+		       (test >= MAX_ONYX_IMAGES)))
 		return -EINVAL;
 
 	/* Copy the image into the processor */
-	if (interface_type == CUDA_INTF) 
+	if (interface_type == CUDA_INTF)
 		return perf_config(cuda_images[test]);
 	else
 		return perf_config(onyx_images[test]);
@@ -359,7 +359,7 @@ static ssize_t perf_write(struct file *file, const char __user *buf, size_t coun
 static void perf_patch_images(void)
 {
 #if 0 /* FIXME!! */
-/* 
+/*
  * NOTE:  this routine is VERY specific to the current TLB image.
  * If the image is changed, this routine might also need to be changed.
  */
@@ -367,9 +367,9 @@ static void perf_patch_images(void)
 	extern void $i_dtlb_miss_2_0();
 	extern void PA2_0_iva();
 
-	/* 
+	/*
 	 * We can only use the lower 32-bits, the upper 32-bits should be 0
-	 * anyway given this is in the kernel 
+	 * anyway given this is in the kernel
 	 */
 	uint32_t itlb_addr  = (uint32_t)&($i_itlb_miss_2_0);
 	uint32_t dtlb_addr  = (uint32_t)&($i_dtlb_miss_2_0);
@@ -377,21 +377,21 @@ static void perf_patch_images(void)
 
 	if (perf_processor_interface == ONYX_INTF) {
 		/* clear last 2 bytes */
-		onyx_images[TLBMISS][15] &= 0xffffff00;  
+		onyx_images[TLBMISS][15] &= 0xffffff00;
 		/* set 2 bytes */
 		onyx_images[TLBMISS][15] |= (0x000000ff&((dtlb_addr) >> 24));
 		onyx_images[TLBMISS][16] = (dtlb_addr << 8)&0xffffff00;
 		onyx_images[TLBMISS][17] = itlb_addr;
 
 		/* clear last 2 bytes */
-		onyx_images[TLBHANDMISS][15] &= 0xffffff00;  
+		onyx_images[TLBHANDMISS][15] &= 0xffffff00;
 		/* set 2 bytes */
 		onyx_images[TLBHANDMISS][15] |= (0x000000ff&((dtlb_addr) >> 24));
 		onyx_images[TLBHANDMISS][16] = (dtlb_addr << 8)&0xffffff00;
 		onyx_images[TLBHANDMISS][17] = itlb_addr;
 
 		/* clear last 2 bytes */
-		onyx_images[BIG_CPI][15] &= 0xffffff00;  
+		onyx_images[BIG_CPI][15] &= 0xffffff00;
 		/* set 2 bytes */
 		onyx_images[BIG_CPI][15] |= (0x000000ff&((dtlb_addr) >> 24));
 		onyx_images[BIG_CPI][16] = (dtlb_addr << 8)&0xffffff00;
@@ -404,24 +404,24 @@ static void perf_patch_images(void)
 
 	} else if (perf_processor_interface == CUDA_INTF) {
 		/* Cuda interface */
-		cuda_images[TLBMISS][16] =  
+		cuda_images[TLBMISS][16] =
 			(cuda_images[TLBMISS][16]&0xffff0000) |
 			((dtlb_addr >> 8)&0x0000ffff);
-		cuda_images[TLBMISS][17] = 
+		cuda_images[TLBMISS][17] =
 			((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
 		cuda_images[TLBMISS][18] = (itlb_addr << 16)&0xffff0000;
 
-		cuda_images[TLBHANDMISS][16] = 
+		cuda_images[TLBHANDMISS][16] =
 			(cuda_images[TLBHANDMISS][16]&0xffff0000) |
 			((dtlb_addr >> 8)&0x0000ffff);
-		cuda_images[TLBHANDMISS][17] = 
+		cuda_images[TLBHANDMISS][17] =
 			((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
 		cuda_images[TLBHANDMISS][18] = (itlb_addr << 16)&0xffff0000;
 
-		cuda_images[BIG_CPI][16] = 
+		cuda_images[BIG_CPI][16] =
 			(cuda_images[BIG_CPI][16]&0xffff0000) |
 			((dtlb_addr >> 8)&0x0000ffff);
-		cuda_images[BIG_CPI][17] = 
+		cuda_images[BIG_CPI][17] =
 			((dtlb_addr << 24)&0xff000000) | ((itlb_addr >> 16)&0x000000ff);
 		cuda_images[BIG_CPI][18] = (itlb_addr << 16)&0xffff0000;
 	} else {
@@ -433,7 +433,7 @@ static void perf_patch_images(void)
 
 /*
  * ioctl routine
- * All routines effect the processor that they are executed on.  Thus you 
+ * All routines effect the processor that they are executed on.  Thus you
  * must be running on the processor that you wish to change.
  */
 
@@ -459,7 +459,7 @@ static long perf_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			}
 
 			/* copy out the Counters */
-			if (copy_to_user((void __user *)arg, raddr, 
+			if (copy_to_user((void __user *)arg, raddr,
 					sizeof (raddr)) != 0) {
 				error =  -EFAULT;
 				break;
@@ -487,7 +487,7 @@ static const struct file_operations perf_fops = {
 	.open = perf_open,
 	.release = perf_release
 };
-	
+
 static struct miscdevice perf_dev = {
 	MISC_DYNAMIC_MINOR,
 	PA_PERF_DEV,
@@ -595,7 +595,7 @@ static int perf_stop_counters(uint32_t *raddr)
 		/* OR sticky2 (bit 1496) to counter2 bit 32 */
 		tmp64 |= (userbuf[23] >> 8) & 0x0000000080000000;
 		raddr[2] = (uint32_t)tmp64;
-		
+
 		/* Counter3 is bits 1497 to 1528 */
 		tmp64 =  (userbuf[23] >> 7) & 0x00000000ffffffff;
 		/* OR sticky3 (bit 1529) to counter3 bit 32 */
@@ -617,7 +617,7 @@ static int perf_stop_counters(uint32_t *raddr)
 		userbuf[22] = 0;
 		userbuf[23] = 0;
 
-		/* 
+		/*
 		 * Write back the zeroed bytes + the image given
 		 * the read was destructive.
 		 */
@@ -625,13 +625,13 @@ static int perf_stop_counters(uint32_t *raddr)
 	} else {
 
 		/*
-		 * Read RDR-15 which contains the counters and sticky bits 
+		 * Read RDR-15 which contains the counters and sticky bits
 		 */
 		if (!perf_rdr_read_ubuf(15, userbuf)) {
 			return -13;
 		}
 
-		/* 
+		/*
 		 * Clear out the counters
 		 */
 		perf_rdr_clear(15);
@@ -644,7 +644,7 @@ static int perf_stop_counters(uint32_t *raddr)
 		raddr[2] = (uint32_t)((userbuf[1] >> 32) & 0x00000000ffffffffUL);
 		raddr[3] = (uint32_t)(userbuf[1] & 0x00000000ffffffffUL);
 	}
- 
+
 	return 0;
 }
 
@@ -682,7 +682,7 @@ static int perf_rdr_read_ubuf(uint32_t	rdr_num, uint64_t *buffer)
 	i = tentry->num_words;
 	while (i--) {
 		buffer[i] = 0;
-	}	
+	}
 
 	/* Check for bits an even number of 64 */
 	if ((xbits = width & 0x03f) != 0) {
@@ -808,18 +808,22 @@ static int perf_write_image(uint64_t *memaddr)
 	}
 
 	runway = ioremap_nocache(cpu_device->hpa.start, 4096);
+	if (!runway) {
+		pr_err("perf_write_image: ioremap failed!\n");
+		return -ENOMEM;
+	}
 
 	/* Merge intrigue bits into Runway STATUS 0 */
 	tmp64 = __raw_readq(runway + RUNWAY_STATUS) & 0xffecfffffffffffful;
-	__raw_writeq(tmp64 | (*memaddr++ & 0x0013000000000000ul), 
+	__raw_writeq(tmp64 | (*memaddr++ & 0x0013000000000000ul),
 		     runway + RUNWAY_STATUS);
-	
+
 	/* Write RUNWAY DEBUG registers */
 	for (i = 0; i < 8; i++) {
 		__raw_writeq(*memaddr++, runway + RUNWAY_DEBUG);
 	}
 
-	return 0; 
+	return 0;
 }
 
 /*
@@ -843,7 +847,7 @@ printk("perf_rdr_write\n");
 			perf_rdr_shift_out_U(rdr_num, buffer[i]);
 		} else {
 			perf_rdr_shift_out_W(rdr_num, buffer[i]);
-		}	
+		}
 	}
 printk("perf_rdr_write done\n");
 }

arch/parisc/kernel/process.c

@@ -142,6 +142,8 @@ void machine_power_off(void)
 
 	printk(KERN_EMERG "System shut down completed.\n"
 	       "Please power this system off now.");
+
+	for (;;);
 }
 
 void (*pm_power_off)(void) = machine_power_off;

arch/parisc/kernel/syscall_table.S

@@ -444,6 +444,7 @@
 	ENTRY_SAME(copy_file_range)
 	ENTRY_COMP(preadv2)
 	ENTRY_COMP(pwritev2)
+	ENTRY_SAME(statx)
 
 
 .ifne (. - 90b) - (__NR_Linux_syscalls * (91b - 90b))

arch/powerpc/Kconfig

@@ -80,93 +80,99 @@ config ARCH_HAS_DMA_SET_COHERENT_MASK
 config PPC
 	bool
 	default y
-	select BUILDTIME_EXTABLE_SORT
+	#
+	# Please keep this list sorted alphabetically.
+	#
+	select ARCH_HAS_DEVMEM_IS_ALLOWED
+	select ARCH_HAS_DMA_SET_COHERENT_MASK
+	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_GCOV_PROFILE_ALL
+	select ARCH_HAS_SCALED_CPUTIME		if VIRT_CPU_ACCOUNTING_NATIVE
+	select ARCH_HAS_SG_CHAIN
+	select ARCH_HAS_TICK_BROADCAST		if GENERIC_CLOCKEVENTS_BROADCAST
+	select ARCH_HAS_UBSAN_SANITIZE_ALL
+	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_MIGHT_HAVE_PC_SERIO
+	select ARCH_SUPPORTS_ATOMIC_RMW
+	select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
+	select ARCH_USE_BUILTIN_BSWAP
+	select ARCH_USE_CMPXCHG_LOCKREF		if PPC64
+	select ARCH_WANT_IPC_PARSE_VERSION
 	select BINFMT_ELF
-	select ARCH_HAS_ELF_RANDOMIZE
+	select BUILDTIME_EXTABLE_SORT
+	select CLONE_BACKWARDS
+	select DCACHE_WORD_ACCESS		if PPC64 && CPU_LITTLE_ENDIAN
+	select EDAC_ATOMIC_SCRUB
+	select EDAC_SUPPORT
+	select GENERIC_ATOMIC64			if PPC32
+	select GENERIC_CLOCKEVENTS
+	select GENERIC_CLOCKEVENTS_BROADCAST	if SMP
+	select GENERIC_CMOS_UPDATE
+	select GENERIC_CPU_AUTOPROBE
+	select GENERIC_IRQ_SHOW
+	select GENERIC_IRQ_SHOW_LEVEL
+	select GENERIC_SMP_IDLE_THREAD
+	select GENERIC_STRNCPY_FROM_USER
+	select GENERIC_STRNLEN_USER
+	select GENERIC_TIME_VSYSCALL_OLD
+	select HAVE_ARCH_AUDITSYSCALL
+	select HAVE_ARCH_HARDENED_USERCOPY
+	select HAVE_ARCH_JUMP_LABEL
+	select HAVE_ARCH_KGDB
+	select HAVE_ARCH_SECCOMP_FILTER
+	select HAVE_ARCH_TRACEHOOK
+	select HAVE_CBPF_JIT			if !PPC64
+	select HAVE_CONTEXT_TRACKING		if PPC64
+	select HAVE_DEBUG_KMEMLEAK
+	select HAVE_DEBUG_STACKOVERFLOW
+	select HAVE_DMA_API_DEBUG
+	select HAVE_DYNAMIC_FTRACE
+	select HAVE_DYNAMIC_FTRACE_WITH_REGS	if MPROFILE_KERNEL
+	select HAVE_EBPF_JIT			if PPC64
+	select HAVE_EFFICIENT_UNALIGNED_ACCESS	if !(CPU_LITTLE_ENDIAN && POWER7_CPU)
+	select HAVE_FTRACE_MCOUNT_RECORD
+	select HAVE_FUNCTION_GRAPH_TRACER
+	select HAVE_FUNCTION_TRACER
+	select HAVE_GCC_PLUGINS
+	select HAVE_GENERIC_RCU_GUP
+	select HAVE_HW_BREAKPOINT		if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx)
+	select HAVE_IDE
+	select HAVE_IOREMAP_PROT
+	select HAVE_IRQ_EXIT_ON_IRQ_STACK
+	select HAVE_KERNEL_GZIP
+	select HAVE_KPROBES
+	select HAVE_KRETPROBES
+	select HAVE_LIVEPATCH			if HAVE_DYNAMIC_FTRACE_WITH_REGS
+	select HAVE_MEMBLOCK
+	select HAVE_MEMBLOCK_NODE_MAP
+	select HAVE_MOD_ARCH_SPECIFIC
+	select HAVE_NMI				if PERF_EVENTS
+	select HAVE_OPROFILE
+	select HAVE_OPTPROBES			if PPC64
+	select HAVE_PERF_EVENTS
+	select HAVE_PERF_EVENTS_NMI		if PPC64
+	select HAVE_PERF_REGS
+	select HAVE_PERF_USER_STACK_DUMP
+	select HAVE_RCU_TABLE_FREE		if SMP
+	select HAVE_REGS_AND_STACK_ACCESS_API
+	select HAVE_SYSCALL_TRACEPOINTS
+	select HAVE_VIRT_CPU_ACCOUNTING
+	select IRQ_DOMAIN
+	select IRQ_FORCED_THREADING
+	select MODULES_USE_ELF_RELA
+	select NO_BOOTMEM
 	select OF
 	select OF_EARLY_FLATTREE
 	select OF_RESERVED_MEM
-	select HAVE_FTRACE_MCOUNT_RECORD
+	select OLD_SIGACTION			if PPC32
-	select HAVE_DYNAMIC_FTRACE
-	select HAVE_DYNAMIC_FTRACE_WITH_REGS if MPROFILE_KERNEL
-	select HAVE_FUNCTION_TRACER
-	select HAVE_FUNCTION_GRAPH_TRACER
-	select HAVE_GCC_PLUGINS
-	select SYSCTL_EXCEPTION_TRACE
-	select VIRT_TO_BUS if !PPC64
-	select HAVE_IDE
-	select HAVE_IOREMAP_PROT
-	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !(CPU_LITTLE_ENDIAN && POWER7_CPU)
-	select HAVE_KPROBES
-	select HAVE_OPTPROBES if PPC64
-	select HAVE_ARCH_KGDB
-	select HAVE_KRETPROBES
-	select HAVE_ARCH_TRACEHOOK
-	select HAVE_MEMBLOCK
-	select HAVE_MEMBLOCK_NODE_MAP
-	select HAVE_DMA_API_DEBUG
-	select HAVE_OPROFILE
-	select HAVE_DEBUG_KMEMLEAK
-	select ARCH_HAS_SG_CHAIN
-	select GENERIC_ATOMIC64 if PPC32
-	select HAVE_PERF_EVENTS
-	select HAVE_PERF_REGS
-	select HAVE_PERF_USER_STACK_DUMP
-	select HAVE_REGS_AND_STACK_ACCESS_API
-	select HAVE_HW_BREAKPOINT if PERF_EVENTS && (PPC_BOOK3S || PPC_8xx)
-	select ARCH_WANT_IPC_PARSE_VERSION
-	select SPARSE_IRQ
-	select IRQ_DOMAIN
-	select GENERIC_IRQ_SHOW
-	select GENERIC_IRQ_SHOW_LEVEL
-	select IRQ_FORCED_THREADING
-	select HAVE_RCU_TABLE_FREE if SMP
-	select HAVE_SYSCALL_TRACEPOINTS
-	select HAVE_CBPF_JIT if !PPC64
-	select HAVE_EBPF_JIT if PPC64
-	select HAVE_ARCH_JUMP_LABEL
-	select ARCH_HAVE_NMI_SAFE_CMPXCHG
-	select ARCH_HAS_GCOV_PROFILE_ALL
-	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_CMOS_UPDATE
-	select GENERIC_TIME_VSYSCALL_OLD
-	select GENERIC_CLOCKEVENTS
-	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
-	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
-	select GENERIC_STRNCPY_FROM_USER
-	select GENERIC_STRNLEN_USER
-	select HAVE_MOD_ARCH_SPECIFIC
-	select MODULES_USE_ELF_RELA
-	select CLONE_BACKWARDS
-	select ARCH_USE_BUILTIN_BSWAP
 	select OLD_SIGSUSPEND
-	select OLD_SIGACTION if PPC32
+	select SPARSE_IRQ
-	select HAVE_DEBUG_STACKOVERFLOW
+	select SYSCTL_EXCEPTION_TRACE
-	select HAVE_IRQ_EXIT_ON_IRQ_STACK
+	select VIRT_TO_BUS			if !PPC64
-	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
+	#
-	select HAVE_ARCH_AUDITSYSCALL
+	# Please keep this list sorted alphabetically.
-	select ARCH_SUPPORTS_ATOMIC_RMW
+	#
-	select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
-	select NO_BOOTMEM
-	select HAVE_GENERIC_RCU_GUP
-	select HAVE_PERF_EVENTS_NMI if PPC64
-	select HAVE_NMI if PERF_EVENTS
-	select EDAC_SUPPORT
-	select EDAC_ATOMIC_SCRUB
-	select ARCH_HAS_DMA_SET_COHERENT_MASK
-	select ARCH_HAS_DEVMEM_IS_ALLOWED
-	select HAVE_ARCH_SECCOMP_FILTER
-	select ARCH_HAS_UBSAN_SANITIZE_ALL
-	select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT
-	select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS
-	select GENERIC_CPU_AUTOPROBE
-	select HAVE_VIRT_CPU_ACCOUNTING
-	select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE
-	select HAVE_ARCH_HARDENED_USERCOPY
-	select HAVE_KERNEL_GZIP
-	select HAVE_CONTEXT_TRACKING if PPC64
 
 config GENERIC_CSUM
 	def_bool n

arch/powerpc/Makefile

@@ -72,8 +72,15 @@ GNUTARGET	:= powerpc
 MULTIPLEWORD	:= -mmultiple
 endif
 
-cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mbig-endian)
+ifdef CONFIG_PPC64
+cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
+cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mcall-aixdesc)
+aflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mabi=elfv1)
+aflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mabi=elfv2
+endif
+
 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mlittle-endian
+cflags-$(CONFIG_CPU_BIG_ENDIAN)		+= $(call cc-option,-mbig-endian)
 ifneq ($(cc-name),clang)
   cflags-$(CONFIG_CPU_LITTLE_ENDIAN)	+= -mno-strict-align
 endif
@@ -113,7 +120,9 @@ ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
 AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv2)
 else
+CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcall-aixdesc)
+AFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
 endif
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)

arch/powerpc/boot/zImage.lds.S

@@ -68,6 +68,7 @@ SECTIONS
   }
 
 #ifdef CONFIG_PPC64_BOOT_WRAPPER
+  . = ALIGN(256);
   .got :
   {
     __toc_start = .;

arch/powerpc/crypto/crc32c-vpmsum_glue.c

@@ -52,7 +52,7 @@ static int crc32c_vpmsum_cra_init(struct crypto_tfm *tfm)
 {
 	u32 *key = crypto_tfm_ctx(tfm);
 
-	*key = 0;
+	*key = ~0;
 
 	return 0;
 }

arch/powerpc/include/asm/bitops.h

@@ -51,6 +51,10 @@
 #define PPC_BIT(bit)		(1UL << PPC_BITLSHIFT(bit))
 #define PPC_BITMASK(bs, be)	((PPC_BIT(bs) - PPC_BIT(be)) | PPC_BIT(bs))
 
+/* Put a PPC bit into a "normal" bit position */
+#define PPC_BITEXTRACT(bits, ppc_bit, dst_bit)			\
+	((((bits) >> PPC_BITLSHIFT(ppc_bit)) & 1) << (dst_bit))
+
 #include <asm/barrier.h>
 
 /* Macro for generating the ***_bits() functions */