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2018-02-19drm: NULL pointer dereference [null-pointer-deref] (CWE 476) problemJoe Moriarty
The Parfait (version 2.1.0) static code analysis tool found the following NULL pointer derefernce problem. - drivers/gpu/drm/drm_dp_mst_topology.c The call to drm_dp_calculate_rad() in function drm_dp_port_setup_pdt() could result in a NULL pointer being returned to port->mstb due to a failure to allocate memory for port->mstb. Signed-off-by: Joe Moriarty <joe.moriarty@oracle.com> Reviewed-by: Steven Sistare <steven.sistare@oracle.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180212195144.98323-3-joe.moriarty@oracle.com
2018-02-19dma-buf/sw_sync: Fix kerneldoc warningsChris Wilson
drivers/dma-buf/sw_sync.c:248: warning: No description found for parameter 'obj' drivers/dma-buf/sw_sync.c:248: warning: No description found for parameter 'value' drivers/dma-buf/sw_sync.c:248: warning: Excess function parameter 'parent' description in 'sync_pt_create' drivers/dma-buf/sw_sync.c:248: warning: Excess function parameter 'inc' description in 'sync_pt_create' Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180208113816.8288-1-chris@chris-wilson.co.uk
2018-02-19drm: Fix kerneldoc warnings for drm_leaseChris Wilson
drivers/gpu/drm/drm_lease.c:56: warning: No description found for parameter 'lessee_id' drivers/gpu/drm/drm_lease.c:56: warning: Excess function parameter 'id' description in '_drm_find_lessee' drivers/gpu/drm/drm_lease.c:114: warning: No description found for parameter 'file_priv' drivers/gpu/drm/drm_lease.c:114: warning: Excess function parameter 'master' description in '_drm_lease_held' drivers/gpu/drm/drm_lease.c:134: warning: No description found for parameter 'file_priv' drivers/gpu/drm/drm_lease.c:134: warning: Excess function parameter 'master' description in 'drm_lease_held' drivers/gpu/drm/drm_lease.c:158: warning: No description found for parameter 'crtcs_in' drivers/gpu/drm/drm_lease.c:158: warning: Excess function parameter 'crtcs' description in 'drm_lease_filter_crtcs' drivers/gpu/drm/drm_lease.c:311: warning: No description found for parameter 'top' drivers/gpu/drm/drm_lease.c:311: warning: Excess function parameter 'master' description in '_drm_lease_revoke' drivers/gpu/drm/drm_lease.c:494: warning: No description found for parameter 'lessor_priv' drivers/gpu/drm/drm_lease.c:494: warning: Excess function parameter 'file_priv' description in 'drm_mode_create_lease_ioctl' drivers/gpu/drm/drm_lease.c:672: warning: No description found for parameter 'lessee_priv' drivers/gpu/drm/drm_lease.c:672: warning: Excess function parameter 'file_priv' description in 'drm_mode_get_lease_ioctl' drivers/gpu/drm/drm_lease.c:733: warning: No description found for parameter 'lessor_priv' drivers/gpu/drm/drm_lease.c:733: warning: Excess function parameter 'file_priv' description in 'drm_mode_revoke_lease_ioctl' Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180208110817.30057-1-chris@chris-wilson.co.uk
2018-02-19drm/bochs: make structure bochs_bo_driver staticColin Ian King
The structure bochs_bo_driver is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: drivers/gpu/drm/bochs/bochs_mm.c:197:22: warning: symbol 'bochs_bo_driver' was not declared. Should it be static? Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180207111353.30261-1-colin.king@canonical.com
2018-02-18drm/rockchip: Respect page offset for PRIME mmap callsØrjan Eide
When mapping external DMA-bufs through the PRIME mmap call, we might be given an offset which has to be respected. However for the internal DRM GEM mmap path, we have to ignore the fake mmap offset used to identify the buffer only. Currently the code always zeroes out vma->vm_pgoff, which breaks the former. This patch fixes the problem by moving the vm_pgoff assignment to a function that is used only for GEM mmap path, so that the PRIME path retains the original offset. Cc: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Ørjan Eide <orjan.eide@arm.com> Signed-off-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20180130202913.28724-4-thierry.escande@collabora.com
2018-02-18drm/rockchip: support prime import sg tableHaixia Shi
The prime fd to handle ioctl was not used with rockchip before. Support was added in order to pass graphics_Gbm and to support potential uses within Chrome OS (e.g. zero-copy video decode, camera). Signed-off-by: Haixia Shi <hshi@chromium.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20180130202913.28724-3-thierry.escande@collabora.com
2018-02-18drm/rockchip: Get rid of unnecessary struct fieldsTomasz Figa
This patch removes unused fields from vop structure. Signed-off-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20180130202913.28724-2-thierry.escande@collabora.com
2018-02-18drm/rockchip: inno_hdmi: Remove unnecessary platform_get_resource() error checkFabio Estevam
devm_ioremap_resource() already checks if the resource is NULL, so remove the unnecessary platform_get_resource() error check. Cc: Heiko Stübner <heiko@sntech.de> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/1513602150-7542-4-git-send-email-festevam@gmail.com
2018-02-18drm/rockchip: dsi: Remove unnecessary platform_get_resource() error checkFabio Estevam
devm_ioremap_resource() already checks if the resource is NULL, so remove the unnecessary platform_get_resource() error check. Cc: Heiko Stübner <heiko@sntech.de> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/1513602150-7542-3-git-send-email-festevam@gmail.com
2018-02-16Merge airlied/drm-next into drm-misc-nextSean Paul
Backmerge 4.15 and hdcp topic branch Signed-off-by: Sean Paul <seanpaul@chromium.org>
2018-02-16drm/sun4i: fix HSYNC and VSYNC polarityGiulio Benetti
Differently from other Lcd signals, HSYNC and VSYNC signals result inverted if their bits are cleared to 0. Invert their settings of IO_POL register. Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/1518717288-123578-1-git-send-email-giulio.benetti@micronovasrl.com
2018-02-16drm/rcar-du: dw-hdmi: Fix compilationMaxime Ripard
Commit eea034af90c6 ("drm/bridge/synopsys: dw-hdmi: don't clobber drvdata") broke the build with one build error and one warning. Fix both. Cc: Archit Taneja <architt@codeaurora.org> Cc: Jernej Skrabec <jernej.skrabec@siol.net> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Fixes: eea034af90c6 ("drm/bridge/synopsys: dw-hdmi: don't clobber drvdata") Reported-by: kbuild test robot <fengguang.wu@intel.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180216154412.22876-1-maxime.ripard@bootlin.com
2018-02-16drm/sun4i: Implement A83T HDMI driverJernej Skrabec
A83T has DW HDMI IP block with a custom PHY similar to Synopsys gen2 HDMI PHY. Only video output was tested, while HW also supports audio and CEC. Support for them will be added later. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180214200906.31509-11-jernej.skrabec@siol.net
2018-02-16drm/sun4i: Add support for A83T second DE2 mixerJernej Skrabec
It supports 1 VI and 1 UI plane and HW scaling on both planes. Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180214200906.31509-10-jernej.skrabec@siol.net
2018-02-16drm/sun4i: Add support for A83T second TCONJernej Skrabec
This TCON is connected to HDMI encoder. Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180214200906.31509-9-jernej.skrabec@siol.net
2018-02-16drm/sun4i: Add has_channel_0 TCON quirkJernej Skrabec
Some TCONs on newer SoCs doesn't support channel 0, since they are meant to be used only with TV or HDMI encoder. Prepare support for them with adding has_channel_0 quirk. Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180214200906.31509-8-jernej.skrabec@siol.net
2018-02-16dt-bindings: display: sun4i-drm: Add A83T HDMI pipelineJernej Skrabec
This commit adds all necessary compatibles and descriptions needed to implement A83T HDMI pipeline. Mixer is already properly described, so only compatible is added. However, A83T TV TCON, which is connected to HDMI, doesn't have channel 0, contrary to all TCONs currently described. Because of that, TCON documentation is extended. A83T features Synopsys DW HDMI controller with a custom PHY which looks like Synopsys Gen2 PHY with few additions. Since there is no documentation, needed properties were found out through experimentation and reading BSP code. At the end, example is added for newer SoCs, which feature DE2 and DW HDMI. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180214200906.31509-7-jernej.skrabec@siol.net
2018-02-16drm/bridge/synopsys: dw-hdmi: don't clobber drvdataJernej Skrabec
dw_hdmi shouldn't set drvdata since some drivers might need to store it's own data there. Rework dw_hdmi in a way to return struct dw_hdmi instead to store it in drvdata. This way drivers are responsible to store and pass structure when needed. Idea was taken from the following commit: 8242ecbd597d ("drm/bridge/synopsys: stop clobbering drvdata") Cc: p.zabel@pengutronix.de Cc: Laurent.pinchart@ideasonboard.com Cc: hjc@rock-chips.com Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Archit Taneja <architt@codeaurora.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180214200906.31509-6-jernej.skrabec@siol.net
2018-02-16drm/bridge/synopsys: dw-hdmi: Export some PHY related functionsJernej Skrabec
Parts of PHY code could be useful also for custom PHYs. For example, Allwinner A83T has custom PHY which is probably Synopsys gen2 PHY with few additional memory mapped registers, so most of the Synopsys PHY related code could be reused. Functions exported here are actually not specific to Synopsys PHYs but to DWC HDMI controller PHY interface. This means that even if the PHY is completely custom, i.e. not designed by Synopsys, exported functions can be useful. Reviewed-by: Archit Taneja <architt@codeaurora.org> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180214200906.31509-5-jernej.skrabec@siol.net
2018-02-16drm/bridge/synopsys: dw-hdmi: Enable workaround for v1.32aJernej Skrabec
Allwinner SoCs have dw hdmi controller v1.32a which exhibits same magenta line issue as i.MX6Q and i.MX6DL. Enable workaround for it. Tests show that one iteration is enough. Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180214200906.31509-4-jernej.skrabec@siol.net
2018-02-16Merge tag 'topic/hdcp-2018-02-13' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next Add HDCP support to i915 drm driver. * tag 'topic/hdcp-2018-02-13' of git://anongit.freedesktop.org/drm/drm-misc: (26 commits) drm/i915: fix misalignment in HDCP register def drm/i915: Reauthenticate HDCP on failure drm/i915: Detect panel's hdcp capability drm/i915: Optimize HDCP key load drm/i915: Retry HDCP bksv read drm/i915: Connector info in HDCP debug msgs drm/i915: Stop encryption for repeater with no sink drm/i915: Handle failure from 2nd stage HDCP auth drm/i915: Downgrade hdcp logs from INFO to DEBUG_KMS drm/i915: Restore HDCP DRM_INFO when with no downstream drm/i915: Check for downstream topology errors drm/i915: Start repeater auth on READY/CP_IRQ drm/i915: II stage HDCP auth for repeater only drm/i915: Extending HDCP for HSW, BDW and BXT+ drm/i915/dp: Fix compilation of intel_dp_hdcp_check_link drm/i915: Only disable HDCP when it's active drm/i915: Don't allow HDCP on PORT E/F drm/i915: Implement HDCP for DisplayPort drm/i915: Implement HDCP for HDMI drm/i915: Add function to output Aksv over GMBUS ...
2018-02-16Merge tag 'drm-misc-next-2018-02-13' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for 4.17: UAPI Changes: - drm/vc4: Expose performance counters to userspace (Boris) Cross-subsystem Changes: - MAINTAINERS: Linus to maintain panel-arm-versatile in -misc (Linus) Core Changes: - Only use swiotlb when necessary (Chunming) Driver Changes: - drm/panel: Add support for ARM Versatile panels (Linus) - pl111: Improvements around versatile panel support (Linus) ---------------------------------------- Tagged on 2018-02-06: drm-misc-next for 4.17: UAPI Changes: - Validate mode flags + type (Ville) - Deprecate unused mode flags PIXMUX, BCAST (Ville) - Deprecate unused mode types BUILTIN, CRTC_C, CLOCK_C, DEFAULT (Ville) Cross-subsystem Changes: - MAINTAINERS: s/Daniel/Maarten/ for drm-misc (Daniel) Core Changes: - gem: Export gem functions for drivers to use (Samuel) - bridge: Introduce bridge timings in drm_bridge (Linus) - dma-buf: Allow exclusive fence to be bundled in fence array when calling reservation_object_get_fences_rcu (Christian) - dp: Add training pattern 4 and HBR3 support to dp helpers (Manasi) - fourcc: Add alpha bit to formats to avoid driver format LUTs (Maxime) - mode: Various cleanups + add new device-wide .mode_valid hook (Ville) - atomic: Fix state leak when non-blocking commits fail (Leo) NOTE: IIRC, this was cross-picked to -fixes so it might fall out - crc: Allow polling on the data fd (Maarten) Driver Changes: - bridge/vga-dac: Add THS8134* support (Linus) - tinydrm: Various MIPI DBI improvements/cleanups (Noralf) - bridge/dw-mipi-dsi: Cleanups + use create_packet helper (Brian) - drm/sun4i: Add Display Engine frontend support (Maxime) - drm/sun4i: Add zpos support + increase num planes from 2 to 4 (Maxime) - various: Use drm_mode_get_hv_timing() to fill plane clip rectangle (Ville) - stm: Add 8-bit clut support, add dsi phy v1.31 support, +fixes (Phillipe) Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Chunming Zhou <david1.zhou@amd.com> Cc: Samuel Li <Samuel.Li@amd.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Brian Norris <briannorris@chromium.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Christian König <christian.koenig@amd.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Philippe Cornu <philippe.cornu@st.com> Cc: Leo (Sunpeng) Li <sunpeng.li@amd.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> * tag 'drm-misc-next-2018-02-13' of git://anongit.freedesktop.org/drm/drm-misc: (115 commits) drm/radeon: only enable swiotlb path when need v2 drm/amdgpu: only enable swiotlb alloc when need v2 drm: add func to get max iomem address v2 drm/vc4: Expose performance counters to userspace drm: Print the pid when debug logging an ioctl error. drm/stm: ltdc: remove non-alpha color formats on layer 2 for older hw drm/stm: ltdc: add non-alpha color formats drm/bridge/synopsys: dsi: Add 1.31 version support drm/bridge/synopsys: dsi: Add read feature drm/pl111: Support multiple endpoints on the CLCD drm/pl111: Support variants with broken VBLANK drm/pl111: Support variants with broken clock divider drm/pl111: Handle the Versatile RGB/BGR565 mode drm/pl111: Properly detect the ARM PL110 variants drm/panel: Add support for ARM Versatile panels drm/panel: Device tree bindings for ARM Versatile panels drm/bridge: Rename argument from crtc to bridge drm/crc: Add support for polling on the data fd. drm/sun4i: Use drm_mode_get_hv_timing() to populate plane clip rectangle drm/rcar-du: Use drm_mode_get_hv_timing() to populate plane clip rectangle ...
2018-02-16Merge tag 'drm-intel-next-2018-02-07' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-next UAPI Changes: - Userspace whitelist register GEN9_SLICE_COMMON_ECO_CHICKEN1 for GLK (Kenneth) - Non-existent PMU counters are not placed to sysfs (Tvrtko) - Add a note to deprecate I915_SET_COLORKEY_NONE and ignore it (Ville) * Intel DDX never ended using it, and implementation was wonky Core Changes: - Moved away from struct timeval into ktime_t in prep for 2038 (Arnd) * Merged the i915 portion through drm-tip, no core dependencies Driver Changes: - Base support for Icelake and Icelake PCH (Anusha, Rodrigo, Mahesh, Paulo, James, Kelvin) - Add AUX-F port support for Cannonlake (Rodrigo) - New DMC firmware for 1.07 Cannonlake (Anusha) * Go to linux-firmware.git to get it - Reject non-cursor planes nearly (3 px) out of screen on GLK/CNL (Imre) - Y/Yf modifiers restored for SKL+ sprites (Ville) - Compressed framebuffer support for sprites (Ville) - Tune down overly aggressive shrinking (Chris) - Shrink kmem caches when GPU is idle (Chris) - EDID bit-banging fallback for HDMI EDID (Stefan) - Don't boost the GPU when the waited request is already running (Chris) - Avoid GLK/BXT CDCLK frequency locking timeouts (Imre) - Limit DP link rate according to VBT on CNL+ (Jani) - Skip post-reset request emission if the engine is not idle (Chris) - Report any link training error on a fixed eDP panel as errors (Manasi) - DSI panel fixes for Bay Trail (Hans) - Selftest additions and improvements (Chris, Matt) - DMA fence test additions and accompanying fixes (Chris) - Power domain vs. register access fix (Maarten) - Squelch warnings for people with teensy framebuffers (stride < 512) (Maarten) - Increase Render/Media power gating hysteresis for Gen9+ (Chris) - HDMI vswing display workaround for Gen9+ (Ville) - GuC code cleanup and lockdep fixes (Sagar, Michal Wa.) - Continuously run hangcheck for simplicity (Chris) - Execlist debugging improvements (Chris) - GuC debugging improvements (Sujaritha, Michal Wa., Sagar) - Command parser boundary checks (Michal Srb) - Add a workaround for 3DSTATE_SAMPLE_PATTERN on CNL (Rafael) - Fix PMU enabling race condition (Tvrtko) - Usual smaller testing and debugging improvements * tag 'drm-intel-next-2018-02-07' of git://anongit.freedesktop.org/drm/drm-intel: (158 commits) drm/i915: Update DRIVER_DATE to 20180207 drm/i915/pmu: Fix PMU enable vs execlists tasklet race drm/i915/cnl: WaPipeControlBefore3DStateSamplePattern drm/i915/cmdparser: Do not check past the cmd length. drm/i915/cmdparser: Check reg_table_count before derefencing. drm/i915: Deprecate I915_SET_COLORKEY_NONE drm/i915: Skip post-reset request emission if the engine is not idle drm/i915/execlists: Move the reset bits to a more natural home drm/i915/selftests: Use a sacrificial context for hang testing drm/i915/selftests: Flush old resets between engines drm/i915/breadcrumbs: Drop request reference for the signaler thread drm/i915: Remove unbannable context spam from reset drm/i915/execlists: Remove the startup spam drm/i915: Show the GPU state when declaring wedged drm/i915: Always update the no_fbc_reason when disabling drm/i915: Add some newlines to intel_engine_dump() headers drm/i915: Report if an unbannable context is involved in a GPU hang drm/i915: Remove spurious DRM_ERROR for cancelled interrupts drm/i915/execlists: Flush GTIIR on clearing CS interrupts during reset drm/i915: reduce indent in pch detection ...
2018-02-15drm: Add DPCD definitions for DP 1.4 FEC featureAnusha Srivatsa
Forward Error Correction is supported on DP 1.4. This patch adds corresponding DPCD register definitions. v2: Add dri-devel mailing list to the CC list(Jani) v3: Change names, add missing masks (Manasi) v4: Add missing shifts to mask (Manasi) v5: Arrange the definitions in ascending order of the address (Jani) v6: remove unnecessary definitions. Add missing masks, add "/* 1.4 */" to offset definitions. (Jani) Cc: dri-devel@lists.freedesktop.org Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1518636498-20921-1-git-send-email-anusha.srivatsa@intel.com
2018-02-14Documentation: bindings: add dt documentation for cdn DP controllerChris Zhong
This patch adds a binding that describes the cdn DP controller for rk3399. Signed-off-by: Chris Zhong <zyw@rock-chips.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> [document the missing 3 reset-names] Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20180213143549.15197-1-enric.balletbo@collabora.com
2018-02-13drm/radeon: only enable swiotlb path when need v2Chunming Zhou
swiotlb expands our card accessing range, but its path always is slower than ttm pool allocation. So add condition to use it. v2: move a bit later Signed-off-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Monk Liu <monk.liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180209024410.1469-3-david1.zhou@amd.com
2018-02-13drm/amdgpu: only enable swiotlb alloc when need v2Chunming Zhou
get the max io mapping address of system memory to see if it is over our card accessing range. v2: move checking later Signed-off-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Monk Liu <monk.liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180209024410.1469-2-david1.zhou@amd.com
2018-02-13drm: add func to get max iomem address v2Chunming Zhou
it will be used to check if the driver needs swiotlb v2: Don't use inline, instead, move function to drm_memory.c (Michel Daenzer <michel@daenzer.net>) Signed-off-by: Chunming Zhou <david1.zhou@amd.com> Reviewed-by: Monk Liu <monk.liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180209024410.1469-1-david1.zhou@amd.com
2018-02-11Linux 4.16-rc1Linus Torvalds
2018-02-11unify {de,}mangle_poll(), get rid of kernel-side POLL...Al Viro
except, again, POLLFREE and POLL_BUSY_LOOP. With this, we finally get to the promised end result: - POLL{IN,OUT,...} are plain integers and *not* in __poll_t, so any stray instances of ->poll() still using those will be caught by sparse. - eventpoll.c and select.c warning-free wrt __poll_t - no more kernel-side definitions of POLL... - userland ones are visible through the entire kernel (and used pretty much only for mangle/demangle) - same behavior as after the first series (i.e. sparc et.al. epoll(2) working correctly). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-11vfs: do bulk POLL* -> EPOLL* replacementLinus Torvalds
This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-11Merge branch 'work.poll2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more poll annotation updates from Al Viro: "This is preparation to solving the problems you've mentioned in the original poll series. After this series, the kernel is ready for running for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done as a for bulk search-and-replace. After that, the kernel is ready to apply the patch to unify {de,}mangle_poll(), and then get rid of kernel-side POLL... uses entirely, and we should be all done with that stuff. Basically, that's what you suggested wrt KPOLL..., except that we can use EPOLL... instead - they already are arch-independent (and equal to what is currently kernel-side POLL...). After the preparations (in this series) switch to returning EPOLL... from ->poll() instances is completely mechanical and kernel-side POLL... can go away. The last step (killing kernel-side POLL... and unifying {de,}mangle_poll() has to be done after the search-and-replace job, since we need userland-side POLL... for unified {de,}mangle_poll(), thus the cherry-pick at the last step. After that we will have: - POLL{IN,OUT,...} *not* in __poll_t, so any stray instances of ->poll() still using those will be caught by sparse. - eventpoll.c and select.c warning-free wrt __poll_t - no more kernel-side definitions of POLL... - userland ones are visible through the entire kernel (and used pretty much only for mangle/demangle) - same behavior as after the first series (i.e. sparc et.al. epoll(2) working correctly)" * 'work.poll2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: annotate ep_scan_ready_list() ep_send_events_proc(): return result via esed->res preparation to switching ->poll() to returning EPOLL... add EPOLLNVAL, annotate EPOLL... and event_poll->event use linux/poll.h instead of asm/poll.h xen: fix poll misannotation smc: missing poll annotations
2018-02-11Merge tag 'xtensa-20180211' of git://github.com/jcmvbkbc/linux-xtensaLinus Torvalds
Pull xtense fix from Max Filippov: "Build fix for xtensa architecture with KASAN enabled" * tag 'xtensa-20180211' of git://github.com/jcmvbkbc/linux-xtensa: xtensa: fix build with KASAN
2018-02-11Merge tag 'nios2-v4.16-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2 Pull nios2 update from Ley Foon Tan: - clean up old Kconfig options from defconfig - remove leading 0x and 0s from bindings notation in dts files * tag 'nios2-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2: nios2: defconfig: Cleanup from old Kconfig options nios2: dts: Remove leading 0x and 0s from bindings notation
2018-02-11xtensa: fix build with KASANMax Filippov
The commit 917538e212a2 ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage") removed KASAN_SHADOW_SCALE_SHIFT definition from include/linux/kasan.h and added it to architecture-specific headers, except for xtensa. This broke the xtensa build with KASAN enabled. Define KASAN_SHADOW_SCALE_SHIFT in arch/xtensa/include/asm/kasan.h Reported by: kbuild test robot <fengguang.wu@intel.com> Fixes: 917538e212a2 ("kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage") Acked-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2018-02-11nios2: defconfig: Cleanup from old Kconfig optionsKrzysztof Kozlowski
Remove old, dead Kconfig option INET_LRO. It is gone since commit 7bbf3cae65b6 ("ipv4: Remove inet_lro library"). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
2018-02-11nios2: dts: Remove leading 0x and 0s from bindings notationMathieu Malaterre
Improve the DTS files by removing all the leading "0x" and zeros to fix the following dtc warnings: Warning (unit_address_format): Node /XXX unit name should not have leading "0x" and Warning (unit_address_format): Node /XXX unit name should not have leading 0s Converted using the following command: find . -type f \( -iname *.dts -o -iname *.dtsi \) -exec sed -E -i -e "s/@0x([0-9a-fA-F\.]+)\s?\{/@\L\1 \{/g" -e "s/@0+([0-9a-fA-F\.]+)\s?\{/@\L\1 \{/g" {} + For simplicity, two sed expressions were used to solve each warnings separately. To make the regex expression more robust a few other issues were resolved, namely setting unit-address to lower case, and adding a whitespace before the the opening curly brace: https://elinux.org/Device_Tree_Linux#Linux_conventions This is a follow up to commit 4c9847b7375a ("dt-bindings: Remove leading 0x from bindings notation") Reported-by: David Daney <ddaney@caviumnetworks.com> Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Mathieu Malaterre <malat@debian.org> Acked-by: Ley Foon Tan <ley.foon.tan@intel.com>
2018-02-10drm/vc4: Expose performance counters to userspaceBoris Brezillon
The V3D engine has various hardware counters which might be interesting to userspace performance analysis tools. Expose new ioctls to create/destroy a performance monitor object and query the counter values of this perfmance monitor. Note that a perfomance monitor is given an ID that is only valid on the file descriptor it has been allocated from. A performance monitor can be attached to a CL submission and the driver will enable HW counters for this request and update the performance monitor values at the end of the job. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20180112090926.12538-1-boris.brezillon@free-electrons.com
2018-02-10drm: Print the pid when debug logging an ioctl error.Eric Anholt
When we debug print what ioctl we're calling into, we include the pid. If you have multiple processes rendering simulataneously, the error return also needs the pid so you can see which of the ioctl calls was the one to fail. Signed-off-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/20180130215643.11016-1-eric@anholt.net Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2018-02-10Merge tag 'pci-v4.16-fixes-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fix from Bjorn Helgaas: "Fix a POWER9/powernv INTx regression from the merge window (Alexey Kardashevskiy)" * tag 'pci-v4.16-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: powerpc/pci: Fix broken INTx configuration via OF
2018-02-10Merge tag 'for-linus-20180210' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "A few fixes to round off the merge window on the block side: - a set of bcache fixes by way of Michael Lyle, from the usual bcache suspects. - add a simple-to-hook-into function for bpf EIO error injection. - fix blk-wbt that mischarectized flushes as reads. Improve the logic so that flushes and writes are accounted as writes, and only reads as reads. From me. - fix requeue crash in BFQ, from Paolo" * tag 'for-linus-20180210' of git://git.kernel.dk/linux-block: block, bfq: add requeue-request hook bcache: fix for data collapse after re-attaching an attached device bcache: return attach error when no cache set exist bcache: set writeback_rate_update_seconds in range [1, 60] seconds bcache: fix for allocator and register thread race bcache: set error_limit correctly bcache: properly set task state in bch_writeback_thread() bcache: fix high CPU occupancy during journal bcache: add journal statistic block: Add should_fail_bio() for bpf error injection blk-wbt: account flush requests correctly
2018-02-10Merge tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86Linus Torvalds
Pull x86 platform driver updates from Darren Hart: "Mellanox fixes and new system type support. Mostly data for new system types with a correction and an uninitialized variable fix" [ Pulling from github because git.infradead.org currently seems to be down for some reason, but Darren had a backup location - Linus ] * tag 'platform-drivers-x86-v4.16-3' of git://github.com/dvhart/linux-pdx86: platform/x86: mlx-platform: Add support for new 200G IB and Ethernet systems platform/x86: mlx-platform: Add support for new msn201x system type platform/x86: mlx-platform: Add support for new msn274x system type platform/x86: mlx-platform: Fix power cable setting for msn21xx family platform/x86: mlx-platform: Add define for the negative bus platform/x86: mlx-platform: Use defines for bus assignment platform/mellanox: mlxreg-hotplug: Fix uninitialized variable
2018-02-10Merge tag 'chrome-platform-for-linus-4.16' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform Pull chrome platform updates from Benson Leung: - move cros_ec_dev to drivers/mfd - other small maintenance fixes [ The cros_ec_dev movement came in earlier through the MFD tree - Linus ] * tag 'chrome-platform-for-linus-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/bleung/chrome-platform: platform/chrome: Use proper protocol transfer function platform/chrome: cros_ec_lpc: Add support for Google Glimmer platform/chrome: cros_ec_lpc: Register the driver if ACPI entry is missing. platform/chrome: cros_ec_lpc: remove redundant pointer request cros_ec: fix nul-termination for firmware build info platform/chrome: chromeos_laptop: make chromeos_laptop const
2018-02-10Merge tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull KVM updates from Radim Krčmář: "ARM: - icache invalidation optimizations, improving VM startup time - support for forwarded level-triggered interrupts, improving performance for timers and passthrough platform devices - a small fix for power-management notifiers, and some cosmetic changes PPC: - add MMIO emulation for vector loads and stores - allow HPT guests to run on a radix host on POWER9 v2.2 CPUs without requiring the complex thread synchronization of older CPU versions - improve the handling of escalation interrupts with the XIVE interrupt controller - support decrement register migration - various cleanups and bugfixes. s390: - Cornelia Huck passed maintainership to Janosch Frank - exitless interrupts for emulated devices - cleanup of cpuflag handling - kvm_stat counter improvements - VSIE improvements - mm cleanup x86: - hypervisor part of SEV - UMIP, RDPID, and MSR_SMI_COUNT emulation - paravirtualized TLB shootdown using the new KVM_VCPU_PREEMPTED bit - allow guests to see TOPOEXT, GFNI, VAES, VPCLMULQDQ, and more AVX512 features - show vcpu id in its anonymous inode name - many fixes and cleanups - per-VCPU MSR bitmaps (already merged through x86/pti branch) - stable KVM clock when nesting on Hyper-V (merged through x86/hyperv)" * tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (197 commits) KVM: PPC: Book3S: Add MMIO emulation for VMX instructions KVM: PPC: Book3S HV: Branch inside feature section KVM: PPC: Book3S HV: Make HPT resizing work on POWER9 KVM: PPC: Book3S HV: Fix handling of secondary HPTEG in HPT resizing code KVM: PPC: Book3S PR: Fix broken select due to misspelling KVM: x86: don't forget vcpu_put() in kvm_arch_vcpu_ioctl_set_sregs() KVM: PPC: Book3S PR: Fix svcpu copying with preemption enabled KVM: PPC: Book3S HV: Drop locks before reading guest memory kvm: x86: remove efer_reload entry in kvm_vcpu_stat KVM: x86: AMD Processor Topology Information x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested kvm: embed vcpu id to dentry of vcpu anon inode kvm: Map PFN-type memory regions as writable (if possible) x86/kvm: Make it compile on 32bit and with HYPYERVISOR_GUEST=n KVM: arm/arm64: Fixup userspace irqchip static key optimization KVM: arm/arm64: Fix userspace_irqchip_in_use counting KVM: arm/arm64: Fix incorrect timer_is_pending logic MAINTAINERS: update KVM/s390 maintainers MAINTAINERS: add Halil as additional vfio-ccw maintainer MAINTAINERS: add David as a reviewer for KVM/s390 ...
2018-02-10powerpc/pci: Fix broken INTx configuration via OFAlexey Kardashevskiy
59f47eff03a0 ("powerpc/pci: Use of_irq_parse_and_map_pci() helper") replaced of_irq_parse_pci() + irq_create_of_mapping() with of_irq_parse_and_map_pci(), but neglected to capture the virq returned by irq_create_of_mapping(), so virq remained zero, which caused INTx configuration to fail. Save the virq value returned by of_irq_parse_and_map_pci() and correct the virq declaration to match the of_irq_parse_and_map_pci() signature. Fixes: 59f47eff03a0 "powerpc/pci: Use of_irq_parse_and_map_pci() helper" Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> [bhelgaas: changelog] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-02-09Merge tag 'kbuild-v4.16-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull more Kbuild updates from Masahiro Yamada: "Makefile changes: - enable unused-variable warning that was wrongly disabled for clang Kconfig changes: - warn about blank 'help' and fix existing instances - fix 'choice' behavior to not write out invisible symbols - fix misc weirdness Coccinell changes: - fix false positive of free after managed memory alloc detection - improve performance of NULL dereference detection" * tag 'kbuild-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (21 commits) kconfig: remove const qualifier from sym_expand_string_value() kconfig: add xrealloc() helper kconfig: send error messages to stderr kconfig: echo stdin to stdout if either is redirected kconfig: remove check_stdin() kconfig: remove 'config*' pattern from .gitignnore kconfig: show '?' prompt even if no help text is available kconfig: do not write choice values when their dependency becomes n coccinelle: deref_null: avoid useless computation coccinelle: devm_free: reduce false positives kbuild: clang: disable unused variable warnings only when constant kconfig: Warn if help text is blank nios2: kconfig: Remove blank help text arm: vt8500: kconfig: Remove blank help text MIPS: kconfig: Remove blank help text MIPS: BCM63XX: kconfig: Remove blank help text lib/Kconfig.debug: Remove blank help text Staging: rtl8192e: kconfig: Remove blank help text Staging: rtl8192u: kconfig: Remove blank help text mmc: kconfig: Remove blank help text ...
2018-02-09mconsole_proc(): don't mess with file->f_posAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-09Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull misc vfs fixes from Al Viro. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: seq_file: fix incomplete reset on read from zero offset kernfs: fix regression in kernfs_fop_write caused by wrong type
2018-02-10kconfig: remove const qualifier from sym_expand_string_value()Masahiro Yamada
This function returns realloc'ed memory, so the returned pointer must be passed to free() when done. So, 'const' qualifier is odd. It is allowed to modify the expanded string. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-02-10kconfig: add xrealloc() helperMasahiro Yamada
We already have xmalloc(), xcalloc(). Add xrealloc() as well to save tedious error handling. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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