dri-devel June 2020

dri-devel@lists.freedesktop.org

315 participants
731 discussions

[PATCH v7 0/6] Add support for DisplayPort driver on SnapDragon
by Tanmay Shah 18 Jun '20

18 Jun '20

These patches add Display-Port driver on SnapDragon/msm hardware. This series also contains device-tree bindings for msm DP driver. It also contains Makefile and Kconfig changes to compile msm DP driver. The block diagram of DP driver is shown below: +-------------+ |DRM FRAMEWORK| +------+------+ | +----v----+ | DP DRM | +----+----+ | … [View More] +----v----+ +------------+| DP +----------++------+ + +---+| DISPLAY |+---+ | | | + +-+-----+-+ | | | | | | | | | | | | | | | | | | | | | | | | v v v v v v v +------+ +------+ +---+ +----+ +----+ +---+ +-----+ | DP | | DP | |DP | | DP | | DP | |DP | | DP | |PARSER| | HPD | |AUX| |LINK| |CTRL| |PHY| |POWER| +--+---+ +---+--+ +---+ +----+ +--+-+ +-+-+ +-----+ | | | +--v---+ +v-----v+ |DEVICE| | DP | | TREE | |CATALOG| +------+ +---+---+ | +---v----+ |CTRL/PHY| | HW | +--------+ This series depends-on: https://patchwork.freedesktop.org/patch/366159/ Changes in v7: - Modify cover letter description and fix title. - Introduce dp-controller.yaml for common bindings across SOC - Rename dp-sc7180.yaml to dp-controller-sc7180.yaml for SC7180 bindings - Rename compatible string to qcom,sc7180-dp - Add assigned-clocks and assigned-clock-parents properties in bindings - Remove redundant code from driver - Extend series to include HPD detection logic This series depends-on: https://patchwork.freedesktop.org/patch/366159/ Chandan Uddaraju (4): dt-bindings: msm/dp: add bindings of DP/DP-PLL driver for Snapdragon drm: add constant N value in helper file drm/msm/dp: add displayPort driver support drm/msm/dp: add support for DP PLL driver Jeykumar Sankaran (1): drm/msm/dpu: add display port support in DPU Tanmay Shah (1): drm/msm/dp: Add Display Port HPD feature .../display/msm/dp-controller-sc7180.yaml | 147 ++ .../bindings/display/msm/dp-controller.yaml | 59 + .../bindings/display/msm/dpu-sc7180.yaml | 11 + drivers/gpu/drm/i915/display/intel_display.c | 2 +- drivers/gpu/drm/msm/Kconfig | 16 + drivers/gpu/drm/msm/Makefile | 14 + drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 29 +- .../drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 8 + drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 83 +- drivers/gpu/drm/msm/dp/dp_aux.c | 530 +++++ drivers/gpu/drm/msm/dp/dp_aux.h | 35 + drivers/gpu/drm/msm/dp/dp_catalog.c | 1065 ++++++++++ drivers/gpu/drm/msm/dp/dp_catalog.h | 89 + drivers/gpu/drm/msm/dp/dp_ctrl.c | 1707 +++++++++++++++++ drivers/gpu/drm/msm/dp/dp_ctrl.h | 35 + drivers/gpu/drm/msm/dp/dp_display.c | 1006 ++++++++++ drivers/gpu/drm/msm/dp/dp_display.h | 31 + drivers/gpu/drm/msm/dp/dp_drm.c | 170 ++ drivers/gpu/drm/msm/dp/dp_drm.h | 18 + drivers/gpu/drm/msm/dp/dp_hpd.c | 69 + drivers/gpu/drm/msm/dp/dp_hpd.h | 79 + drivers/gpu/drm/msm/dp/dp_link.c | 1216 ++++++++++++ drivers/gpu/drm/msm/dp/dp_link.h | 132 ++ drivers/gpu/drm/msm/dp/dp_panel.c | 491 +++++ drivers/gpu/drm/msm/dp/dp_panel.h | 95 + drivers/gpu/drm/msm/dp/dp_parser.c | 268 +++ drivers/gpu/drm/msm/dp/dp_parser.h | 202 ++ drivers/gpu/drm/msm/dp/dp_pll.c | 93 + drivers/gpu/drm/msm/dp/dp_pll.h | 59 + drivers/gpu/drm/msm/dp/dp_pll_10nm.c | 884 +++++++++ drivers/gpu/drm/msm/dp/dp_pll_private.h | 103 + drivers/gpu/drm/msm/dp/dp_power.c | 392 ++++ drivers/gpu/drm/msm/dp/dp_power.h | 103 + drivers/gpu/drm/msm/dp/dp_reg.h | 517 +++++ drivers/gpu/drm/msm/msm_drv.c | 2 + drivers/gpu/drm/msm/msm_drv.h | 59 +- include/drm/drm_dp_helper.h | 1 + 37 files changed, 9801 insertions(+), 19 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/msm/dp-controller-sc7180.yaml create mode 100644 Documentation/devicetree/bindings/display/msm/dp-controller.yaml create mode 100644 drivers/gpu/drm/msm/dp/dp_aux.c create mode 100644 drivers/gpu/drm/msm/dp/dp_aux.h create mode 100644 drivers/gpu/drm/msm/dp/dp_catalog.c create mode 100644 drivers/gpu/drm/msm/dp/dp_catalog.h create mode 100644 drivers/gpu/drm/msm/dp/dp_ctrl.c create mode 100644 drivers/gpu/drm/msm/dp/dp_ctrl.h create mode 100644 drivers/gpu/drm/msm/dp/dp_display.c create mode 100644 drivers/gpu/drm/msm/dp/dp_display.h create mode 100644 drivers/gpu/drm/msm/dp/dp_drm.c create mode 100644 drivers/gpu/drm/msm/dp/dp_drm.h create mode 100644 drivers/gpu/drm/msm/dp/dp_hpd.c create mode 100644 drivers/gpu/drm/msm/dp/dp_hpd.h create mode 100644 drivers/gpu/drm/msm/dp/dp_link.c create mode 100644 drivers/gpu/drm/msm/dp/dp_link.h create mode 100644 drivers/gpu/drm/msm/dp/dp_panel.c create mode 100644 drivers/gpu/drm/msm/dp/dp_panel.h create mode 100644 drivers/gpu/drm/msm/dp/dp_parser.c create mode 100644 drivers/gpu/drm/msm/dp/dp_parser.h create mode 100644 drivers/gpu/drm/msm/dp/dp_pll.c create mode 100644 drivers/gpu/drm/msm/dp/dp_pll.h create mode 100644 drivers/gpu/drm/msm/dp/dp_pll_10nm.c create mode 100644 drivers/gpu/drm/msm/dp/dp_pll_private.h create mode 100644 drivers/gpu/drm/msm/dp/dp_power.c create mode 100644 drivers/gpu/drm/msm/dp/dp_power.h create mode 100644 drivers/gpu/drm/msm/dp/dp_reg.h base-commit: 66057dd1d1cf2149e0f5fdaee58d6ea69bc98048 prerequisite-patch-id: 8058026a54241aa728a91dd1685419afb249959e -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project [View Less]

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[PATCH] dt-bindings: display: Convert connectors to DT schema
by Rob Herring 18 Jun '20

18 Jun '20

Convert the analog TV, DVI, HDMI, and VGA connector bindings to DT schema format. Cc: Sam Ravnborg <sam(a)ravnborg.org> Cc: Laurent Pinchart <Laurent.pinchart(a)ideasonboard.com> Cc: Maxime Ripard <mripard(a)kernel.org> Signed-off-by: Rob Herring <robh(a)kernel.org> --- I put myself as maintainer, but would be happy if someone else was like one of the Cc'ed people. .../display/connector/analog-tv-connector.txt | 31 -------- .../connector/analog-tv-connector.yaml … [View More] | 47 ++++++++++++ .../display/connector/dvi-connector.txt | 36 --------- .../display/connector/dvi-connector.yaml | 75 +++++++++++++++++++ .../display/connector/hdmi-connector.txt | 31 -------- .../display/connector/hdmi-connector.yaml | 63 ++++++++++++++++ .../display/connector/vga-connector.txt | 36 --------- .../display/connector/vga-connector.yaml | 42 +++++++++++ 8 files changed, 227 insertions(+), 134 deletions(-) delete mode 100644 Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt create mode 100644 Documentation/devicetree/bindings/display/connector/analog-tv-connector.yaml delete mode 100644 Documentation/devicetree/bindings/display/connector/dvi-connector.txt create mode 100644 Documentation/devicetree/bindings/display/connector/dvi-connector.yaml delete mode 100644 Documentation/devicetree/bindings/display/connector/hdmi-connector.txt create mode 100644 Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml delete mode 100644 Documentation/devicetree/bindings/display/connector/vga-connector.txt create mode 100644 Documentation/devicetree/bindings/display/connector/vga-connector.yaml diff --git a/Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt b/Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt deleted file mode 100644 index 883bcb2604c7..000000000000 --- a/Documentation/devicetree/bindings/display/connector/analog-tv-connector.txt +++ /dev/null @@ -1,31 +0,0 @@ -Analog TV Connector -=================== - -Required properties: -- compatible: "composite-video-connector" or "svideo-connector" - -Optional properties: -- label: a symbolic name for the connector -- sdtv-standards: limit the supported TV standards on a connector to the given - ones. If not specified all TV standards are allowed. - Possible TV standards are defined in - include/dt-bindings/display/sdtv-standards.h. - -Required nodes: -- Video port for TV input - -Example -------- -#include <dt-bindings/display/sdtv-standards.h> - -tv: connector { - compatible = "composite-video-connector"; - label = "tv"; - sdtv-standards = <(SDTV_STD_PAL | SDTV_STD_NTSC)>; - - port { - tv_connector_in: endpoint { - remote-endpoint = <&venc_out>; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/display/connector/analog-tv-connector.yaml b/Documentation/devicetree/bindings/display/connector/analog-tv-connector.yaml new file mode 100644 index 000000000000..d9ac42cb7e04 --- /dev/null +++ b/Documentation/devicetree/bindings/display/connector/analog-tv-connector.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/connector/analog-tv-connector.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog TV Connector + +maintainers: + - Rob Herring <robh(a)kernel.org> + +properties: + compatible: + enum: + - composite-video-connector + - svideo-connector + + label: true + + sdtv-standards: + description: Limit the supported TV standards on a connector to the given + ones. If not specified all TV standards are allowed. Possible TV + standards are defined in include/dt-bindings/display/sdtv-standards.h. + $ref: /schemas/types.yaml#/definitions/uint32 + + port: + description: Connection to controller providing analog TV signals + +additionalProperties: false + +examples: + - | + #include <dt-bindings/display/sdtv-standards.h> + + connector { + compatible = "composite-video-connector"; + label = "tv"; + sdtv-standards = <(SDTV_STD_PAL | SDTV_STD_NTSC)>; + + port { + tv_connector_in: endpoint { + remote-endpoint = <&venc_out>; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/display/connector/dvi-connector.txt b/Documentation/devicetree/bindings/display/connector/dvi-connector.txt deleted file mode 100644 index 207e42e9eba0..000000000000 --- a/Documentation/devicetree/bindings/display/connector/dvi-connector.txt +++ /dev/null @@ -1,36 +0,0 @@ -DVI Connector -============== - -Required properties: -- compatible: "dvi-connector" - -Optional properties: -- label: a symbolic name for the connector -- ddc-i2c-bus: phandle to the i2c bus that is connected to DVI DDC -- analog: the connector has DVI analog pins -- digital: the connector has DVI digital pins -- dual-link: the connector has pins for DVI dual-link -- hpd-gpios: HPD GPIO number - -Required nodes: -- Video port for DVI input - -Note: One (or both) of 'analog' or 'digital' must be set. - -Example -------- - -dvi0: connector@0 { - compatible = "dvi-connector"; - label = "dvi"; - - digital; - - ddc-i2c-bus = <&i2c3>; - - port { - dvi_connector_in: endpoint { - remote-endpoint = <&tfp410_out>; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/display/connector/dvi-connector.yaml b/Documentation/devicetree/bindings/display/connector/dvi-connector.yaml new file mode 100644 index 000000000000..aaf61bce64ca --- /dev/null +++ b/Documentation/devicetree/bindings/display/connector/dvi-connector.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/connector/dvi-connector.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: DVI Connector + +maintainers: + - Rob Herring <robh(a)kernel.org> + +properties: + compatible: + const: dvi-connector + + type: + description: The HDMI connector type + enum: + - a # Standard full size + - b # Never deployed? + - c # Mini + - d # Micro + - e # automotive + + label: true + + hpd-gpios: + description: A GPIO line connected to HPD + maxItems: 1 + + ddc-i2c-bus: + description: phandle link to the I2C controller used for DDC EDID probing + $ref: /schemas/types.yaml#/definitions/phandle + + analog: + type: boolean + description: the connector has DVI analog pins + + digital: + type: boolean + description: the connector has DVI digital pins + + dual-link: + type: boolean + description: the connector has pins for DVI dual-link + + port: + description: Connection to controller providing DVI signals + +anyOf: + - required: + - analog + - required: + - digital + +additionalProperties: false + +examples: + - | + connector { + compatible = "dvi-connector"; + label = "dvi"; + + digital; + + ddc-i2c-bus = <&i2c3>; + + port { + dvi_connector_in: endpoint { + remote-endpoint = <&tfp410_out>; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt b/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt deleted file mode 100644 index aeb07c4bd703..000000000000 --- a/Documentation/devicetree/bindings/display/connector/hdmi-connector.txt +++ /dev/null @@ -1,31 +0,0 @@ -HDMI Connector -============== - -Required properties: -- compatible: "hdmi-connector" -- type: the HDMI connector type: "a", "b", "c", "d" or "e" - -Optional properties: -- label: a symbolic name for the connector -- hpd-gpios: HPD GPIO number -- ddc-i2c-bus: phandle link to the I2C controller used for DDC EDID probing -- ddc-en-gpios: signal to enable DDC bus - -Required nodes: -- Video port for HDMI input - -Example -------- - -hdmi0: connector@1 { - compatible = "hdmi-connector"; - label = "hdmi"; - - type = "a"; - - port { - hdmi_connector_in: endpoint { - remote-endpoint = <&tpd12s015_out>; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml b/Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml new file mode 100644 index 000000000000..57f0193a12e7 --- /dev/null +++ b/Documentation/devicetree/bindings/display/connector/hdmi-connector.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/connector/hdmi-connector.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: HDMI Connector + +maintainers: + - Rob Herring <robh(a)kernel.org> + +properties: + compatible: + const: hdmi-connector + + type: + description: The HDMI connector type + enum: + - a # Standard full size + - b # Never deployed? + - c # Mini + - d # Micro + - e # automotive + + label: true + + hpd-gpios: + description: A GPIO line connected to HPD + maxItems: 1 + + ddc-i2c-bus: + description: phandle link to the I2C controller used for DDC EDID probing + $ref: /schemas/types.yaml#/definitions/phandle + + ddc-en-gpios: + description: GPIO signal to enable DDC bus + maxItems: 1 + + port: + description: Connection to controller providing HDMI signals + +required: + - compatible + - type + +additionalProperties: false + +examples: + - | + connector { + compatible = "hdmi-connector"; + label = "hdmi"; + + type = "a"; + + port { + hdmi_connector_in: endpoint { + remote-endpoint = <&tpd12s015_out>; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/display/connector/vga-connector.txt b/Documentation/devicetree/bindings/display/connector/vga-connector.txt deleted file mode 100644 index c727f298e7ad..000000000000 --- a/Documentation/devicetree/bindings/display/connector/vga-connector.txt +++ /dev/null @@ -1,36 +0,0 @@ -VGA Connector -============= - -Required properties: - -- compatible: "vga-connector" - -Optional properties: - -- label: a symbolic name for the connector corresponding to a hardware label -- ddc-i2c-bus: phandle to the I2C bus that is connected to VGA DDC - -Required nodes: - -The VGA connector internal connections are modeled using the OF graph bindings -specified in Documentation/devicetree/bindings/graph.txt. - -The VGA connector has a single port that must be connected to a video source -port. - - -Example -------- - -vga0: connector@0 { - compatible = "vga-connector"; - label = "vga"; - - ddc-i2c-bus = <&i2c3>; - - port { - vga_connector_in: endpoint { - remote-endpoint = <&adv7123_out>; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/display/connector/vga-connector.yaml b/Documentation/devicetree/bindings/display/connector/vga-connector.yaml new file mode 100644 index 000000000000..cc1245f471bc --- /dev/null +++ b/Documentation/devicetree/bindings/display/connector/vga-connector.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/connector/vga-connector.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: VGA Connector + +maintainers: + - Rob Herring <robh(a)kernel.org> + +properties: + compatible: + const: vga-connector + + label: true + + ddc-i2c-bus: + description: phandle link to the I2C controller used for DDC EDID probing + $ref: /schemas/types.yaml#/definitions/phandle + + port: + description: Connection to controller providing VGA signals + +additionalProperties: false + +examples: + - | + connector { + compatible = "vga-connector"; + label = "vga"; + + ddc-i2c-bus = <&i2c3>; + + port { + vga_connector_in: endpoint { + remote-endpoint = <&adv7123_out>; + }; + }; + }; + +... -- 2.25.1 [View Less]

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[PATCH v6 00/16] drm/i915: Add support for HDCP 1.4 over MST connectors
by Sean Paul 18 Jun '20

18 Jun '20

From: Sean Paul <seanpaul(a)chromium.org> Changes in v6: -Rebased on -tip -Disabled HDCP over MST on GEN12 -Addressed Lyude's review comments in the QUERY_STREAM_ENCRYPTION_STATUS patch Sean Paul (16): drm/i915: Fix sha_text population code drm/i915: Clear the repeater bit on HDCP disable drm/i915: WARN if HDCP signalling is enabled upon disable drm/i915: Intercept Aksv writes in the aux hooks drm/i915: Use the cpu_transcoder in intel_hdcp to toggle HDCP signalling drm/… [View More]

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[PATCH 00/29] Documentation fixes
by Mauro Carvalho Chehab 18 Jun '20

18 Jun '20

Hi Jon, That's a bunch of files I have to be applied on the top of v5.8-rc1 fixing documentation warnings. I already removed some duplicated stuff. Regards, Mauro Mauro Carvalho Chehab (29): mm: vmalloc.c: remove a kernel-doc annotation from a removed parameter net: dev: add a missing kernel-doc annotation net: netdevice.h: add a description for napi_defer_hard_irqs scripts/kernel-doc: parse __ETHTOOL_DECLARE_LINK_MODE_MASK net: pylink.h: add kernel-doc descriptions for new fields … [View More]at phylink_config scripts/kernel-doc: handle function pointer prototypes fs: fs.h: fix a kernel-doc parameter description gpio: driver.h: fix kernel-doc markup kcsan: fix a kernel-doc warning rcu: fix some kernel-doc warnings fs: docs: f2fs.rst: fix a broken table dt: update a reference for reneases pcar file renamed to yaml dt: fix broken links due to txt->yaml renames dt: Fix broken references to renamed docs dt: fix reference to olpc,xo1.75-ec.txt selftests/vm/keys: fix a broken reference at protection_keys.c docs: hugetlbpage.rst: fix some warnings docs: powerpc: fix some issues at vas-api.rst docs: driver-model: remove a duplicated markup at driver.rst docs: watch_queue.rst: supress some Sphinx warnings and move to core-api docs: device-mapper: add dm-ebs.rst to an index file docs: it_IT: add two missing references docs: ABI: fix a typo when pointing to w1-generic.rst docs: fs: locking.rst: fix a broken table docs: add bus-virt-phys-mapping.txt to core-api docs: fix references for DMA*.txt files docs: dt: minor adjustments at writing-schema.rst docs: fs: proc.rst: fix a warning due to a merge conflict docs: fs: proc.rst: convert a new chapter to ReST .../ABI/testing/sysfs-driver-w1_therm | 2 +- Documentation/PCI/pci.rst | 6 +- .../admin-guide/device-mapper/index.rst | 1 + Documentation/admin-guide/mm/hugetlbpage.rst | 25 ++- Documentation/block/biodoc.rst | 2 +- .../bus-virt-phys-mapping.rst} | 2 +- Documentation/core-api/dma-api.rst | 6 +- Documentation/core-api/dma-isa-lpc.rst | 2 +- Documentation/core-api/index.rst | 2 + Documentation/{ => core-api}/watch_queue.rst | 34 ++-- .../bindings/arm/freescale/fsl,scu.txt | 2 +- .../bindings/display/bridge/sii902x.txt | 2 +- .../bindings/display/imx/fsl-imx-drm.txt | 4 +- .../devicetree/bindings/display/imx/ldb.txt | 4 +- .../display/rockchip/rockchip-drm.yaml | 2 +- .../bindings/misc/olpc,xo1.75-ec.txt | 2 +- .../bindings/net/mediatek-bluetooth.txt | 2 +- .../bindings/pinctrl/renesas,pfc-pinctrl.txt | 2 +- .../bindings/sound/audio-graph-card.txt | 2 +- .../bindings/sound/st,sti-asoc-card.txt | 2 +- .../bindings/spi/qcom,spi-geni-qcom.txt | 2 +- Documentation/devicetree/writing-schema.rst | 9 +- .../driver-api/driver-model/driver.rst | 2 - Documentation/driver-api/usb/dma.rst | 6 +- Documentation/filesystems/f2fs.rst | 150 ++++++++++++------ Documentation/filesystems/locking.rst | 6 +- Documentation/filesystems/proc.rst | 46 +++--- Documentation/memory-barriers.txt | 6 +- Documentation/mips/ingenic-tcu.rst | 2 +- Documentation/powerpc/vas-api.rst | 23 ++- Documentation/security/keys/core.rst | 2 +- .../it_IT/process/management-style.rst | 2 + .../it_IT/process/submitting-patches.rst | 2 + .../translations/ko_KR/memory-barriers.txt | 6 +- MAINTAINERS | 8 +- arch/ia64/hp/common/sba_iommu.c | 12 +- arch/parisc/kernel/pci-dma.c | 2 +- arch/x86/include/asm/dma-mapping.h | 4 +- arch/x86/kernel/amd_gart_64.c | 2 +- drivers/parisc/sba_iommu.c | 14 +- include/linux/dma-mapping.h | 2 +- include/linux/fs.h | 2 +- include/linux/gpio/driver.h | 2 +- include/linux/kcsan-checks.h | 10 +- include/linux/netdevice.h | 2 + include/linux/phylink.h | 4 + include/linux/rculist.h | 2 +- include/linux/watch_queue.h | 2 +- include/media/videobuf-dma-sg.h | 2 +- init/Kconfig | 2 +- kernel/dma/debug.c | 2 +- kernel/watch_queue.c | 2 +- mm/vmalloc.c | 1 - net/core/dev.c | 1 + scripts/kernel-doc | 7 + tools/testing/selftests/vm/protection_keys.c | 2 +- 56 files changed, 282 insertions(+), 175 deletions(-) rename Documentation/{bus-virt-phys-mapping.txt => core-api/bus-virt-phys-mapping.rst} (99%) rename Documentation/{ => core-api}/watch_queue.rst (94%) -- 2.26.2 [View Less]

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[RESEND PATCH v2 0/4] drm/etnaviv: Tidy up clocks handling
by Lubomir Rintel 18 Jun '20

18 Jun '20

Hi, please consider applying patches that are chained to this message. They make getting/enabling the clocks in the etnaviv driver slightly nicer, first two also fix potential problems. Compared to v1, patch 2/4 was fixed and patch 3/4 was added. As it was pointed out in response to v1, the clocks documented as mandatory by the binding document are different from what the driver enforces. Moreover, there is no agreement on which clocks must be present in the device tree, so I'm leaving the … [View More]

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[PATCH v2] drm/etnaviv: convert get_user_pages() --> pin_user_pages()
by John Hubbard 18 Jun '20

18 Jun '20

This code was using get_user_pages*(), in a "Case 2" scenario (DMA/RDMA), using the categorization from [1]. That means that it's time to convert the get_user_pages*() + put_page() calls to pin_user_pages*() + unpin_user_pages() calls. There is some helpful background in [2]: basically, this is a small part of fixing a long-standing disconnect between pinning pages, and file systems' use of those pages. [1] Documentation/core-api/pin_user_pages.rst [2] "Explicit pinning of user-space pages": … [View More]

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[PATCH] drm/arm: fix unintentional integer overflow on left shift
by Colin King 18 Jun '20

18 Jun '20

From: Colin Ian King <colin.king(a)canonical.com> Shifting the integer value 1 is evaluated using 32-bit arithmetic and then used in an expression that expects a long value leads to a potential integer overflow. Fix this by using the BIT macro to perform the shift to avoid the overflow. Addresses-Coverity: ("Unintentional integer overflow") Fixes: ad49f8602fe8 ("drm/arm: Add support for Mali Display Processors") Signed-off-by: Colin Ian King <colin.king(a)canonical.com> --- … [View More]

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[PATCH] drm/noveau: fix reference count leak in nv50_disp_atomic_commit
by Aditya Pakki 18 Jun '20

18 Jun '20

nv50_disp_atomic_commit() calls calls pm_runtime_get_sync and in turn increments the reference count. In case of failure, decrement the ref count before returning the error. Signed-off-by: Aditya Pakki <pakki001(a)umn.edu> --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index d472942102f5..b4039907f0d6 100644 --- a/drivers/gpu/drm/nouveau/… [View More]

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[PATCH] drm/amdgpu: remove redundant initialization of variable ret
by Colin King 18 Jun '20

18 Jun '20

From: Colin Ian King <colin.king(a)canonical.com> The variable ret is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by: Colin Ian King <colin.king(a)canonical.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/… [View More]

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[v8] drm/msm/dpu: ensure device suspend happens during PM sleep
by Kalyan Thota 18 Jun '20

18 Jun '20

"The PM core always increments the runtime usage counter before calling the ->suspend() callback and decrements it after calling the ->resume() callback" DPU and DSI are managed as runtime devices. When suspend is triggered, PM core adds a refcount on all the devices and calls device suspend, since usage count is already incremented, runtime suspend was not getting called and it kept the clocks on which resulted in target not entering into XO shutdown. Add changes to force suspend on … [View More]runtime devices during pm sleep. Changes in v1: - Remove unnecessary checks in the function _dpu_kms_disable_dpu (Rob Clark). Changes in v2: - Avoid using suspend_late to reset the usagecount as suspend_late might not be called during suspend call failures (Doug). Changes in v3: - Use force suspend instead of managing device usage_count via runtime put and get API's to trigger callbacks (Doug). Changes in v4: - Check the return values of pm_runtime_force_suspend and pm_runtime_force_resume API's and pass appropriately (Doug). Changes in v5: - With v4 patch, test cycle has uncovered issues in device resume. On bubs: cmd tx failures were seen as SW is sending panel off commands when the dsi resources are turned off. Upon suspend, DRM driver will issue a NULL composition to the dpu, followed by turning off all the HW blocks. v5 changes will serialize the NULL commit and resource unwinding by handling them under PM prepare and PM complete phases there by ensuring that clks are on when panel off commands are being processed. Changes in v6: - Use drm_mode_config_helper_suspend/resume() instead of legacy API drm_atomic_helper_suspend/resume() (Doug). Trigger runtime callbacks from the suspend/resume call to turn off the resources. Changes in v7: - Add "__maybe_unused" to the functions to avoid compilation failures. Cleanup unnecessary configs (Doug). Signed-off-by: Kalyan Thota <kalyan_t(a)codeaurora.org> Reviewed-by: Douglas Anderson <dianders(a)chromium.org> --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 2 + drivers/gpu/drm/msm/dsi/dsi.c | 2 + drivers/gpu/drm/msm/msm_drv.c | 67 +++++++++++++++------------------ 3 files changed, 35 insertions(+), 36 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index a5da7aa..dcf5b9a 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -1150,6 +1150,8 @@ static int __maybe_unused dpu_runtime_resume(struct device *dev) static const struct dev_pm_ops dpu_pm_ops = { SET_RUNTIME_PM_OPS(dpu_runtime_suspend, dpu_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) }; static const struct of_device_id dpu_dt_match[] = { diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c index 55ea4bc2..62704885 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.c +++ b/drivers/gpu/drm/msm/dsi/dsi.c @@ -161,6 +161,8 @@ static int dsi_dev_remove(struct platform_device *pdev) static const struct dev_pm_ops dsi_pm_ops = { SET_RUNTIME_PM_OPS(msm_dsi_runtime_suspend, msm_dsi_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) }; static struct platform_driver dsi_driver = { diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index f6ce40b..6d294c8 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -1039,75 +1039,70 @@ static int msm_ioctl_submitqueue_close(struct drm_device *dev, void *data, .patchlevel = MSM_VERSION_PATCHLEVEL, }; -#ifdef CONFIG_PM_SLEEP -static int msm_pm_suspend(struct device *dev) +static int __maybe_unused msm_runtime_suspend(struct device *dev) { struct drm_device *ddev = dev_get_drvdata(dev); struct msm_drm_private *priv = ddev->dev_private; + struct msm_mdss *mdss = priv->mdss; - if (WARN_ON(priv->pm_state)) - drm_atomic_state_put(priv->pm_state); + DBG(""); - priv->pm_state = drm_atomic_helper_suspend(ddev); - if (IS_ERR(priv->pm_state)) { - int ret = PTR_ERR(priv->pm_state); - DRM_ERROR("Failed to suspend dpu, %d\n", ret); - return ret; - } + if (mdss && mdss->funcs) + return mdss->funcs->disable(mdss); return 0; } -static int msm_pm_resume(struct device *dev) +static int __maybe_unused msm_runtime_resume(struct device *dev) { struct drm_device *ddev = dev_get_drvdata(dev); struct msm_drm_private *priv = ddev->dev_private; - int ret; + struct msm_mdss *mdss = priv->mdss; - if (WARN_ON(!priv->pm_state)) - return -ENOENT; + DBG(""); - ret = drm_atomic_helper_resume(ddev, priv->pm_state); - if (!ret) - priv->pm_state = NULL; + if (mdss && mdss->funcs) + return mdss->funcs->enable(mdss); - return ret; + return 0; } -#endif -#ifdef CONFIG_PM -static int msm_runtime_suspend(struct device *dev) +static int __maybe_unused msm_pm_suspend(struct device *dev) { - struct drm_device *ddev = dev_get_drvdata(dev); - struct msm_drm_private *priv = ddev->dev_private; - struct msm_mdss *mdss = priv->mdss; - DBG(""); + if (pm_runtime_suspended(dev)) + return 0; - if (mdss && mdss->funcs) - return mdss->funcs->disable(mdss); + return msm_runtime_suspend(dev); +} - return 0; +static int __maybe_unused msm_pm_resume(struct device *dev) +{ + if (pm_runtime_suspended(dev)) + return 0; + + return msm_runtime_resume(dev); } -static int msm_runtime_resume(struct device *dev) +static int __maybe_unused msm_pm_prepare(struct device *dev) { struct drm_device *ddev = dev_get_drvdata(dev); - struct msm_drm_private *priv = ddev->dev_private; - struct msm_mdss *mdss = priv->mdss; - DBG(""); + return drm_mode_config_helper_suspend(ddev); +} - if (mdss && mdss->funcs) - return mdss->funcs->enable(mdss); +static void __maybe_unused msm_pm_complete(struct device *dev) +{ + struct drm_device *ddev = dev_get_drvdata(dev); - return 0; + drm_mode_config_helper_resume(ddev); } -#endif static const struct dev_pm_ops msm_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(msm_pm_suspend, msm_pm_resume) SET_RUNTIME_PM_OPS(msm_runtime_suspend, msm_runtime_resume, NULL) + .prepare = msm_pm_prepare, + .complete = msm_pm_complete, }; /* -- 1.9.1 [View Less]

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dri-devel June 2020