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2019-11-28drm/selftests: Add drm_rect selftestsVille Syrjälä
Add selftests for drm_rect. A few basic ones for clipped and unclipped cases, and a few special ones for specific bugs we had in the code. I'm too lazy to think of more corner cases to check at this time. Maybe later. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191122175623.13565-5-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Benjamin Gaignard <benjamin.gaignard@st.com>
2019-11-27drm/vram: remove unused declarationGurchetan Singh
Commit b0e40e080522 ("vram: Have VRAM MM call GEM VRAM functions directly") removed this. Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Fixes: b0e40e080522 ("drm/vram: Have VRAM MM call GEM VRAM functions directly") Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Hans de Goede <hdegoede@redhat.com> Cc: "Christian König" <christian.koenig@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: virtualization@lists.linux-foundation.org Cc: dri-devel@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20191126184339.337-1-gurchetansingh@chromium.org
2019-11-26dma-buf: Remove kernel map/unmap hooksDaniel Vetter
All implementations are gone now. Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Link: https://patchwork.freedesktop.org/patch/msgid/20191118103536.17675-16-daniel.vetter@ffwll.ch
2019-11-25dma-buf: Drop dma_buf_k(un)mapDaniel Vetter
It's unused. 10 years ago, back when 32bit was still fairly common and trying to not exhaust vmalloc space sounded like a worthwhile goal, adding these to dma_buf made sense. Reality is that they simply never caught on, and nowadays everyone who needs plenty of buffers will run in 64bit mode anyway. Also update the docs in this area to adjust them to reality. The actual hooks in dma_buf_ops will be removed once all the implementations are gone. Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Link: https://patchwork.freedesktop.org/patch/msgid/20191118103536.17675-10-daniel.vetter@ffwll.ch
2019-11-25drm/tegra: Delete host1x_bo_ops->k(un)mapDaniel Vetter
It doesn't have any callers anymore. Aside: The ->mmap/munmap hooks have a bit a confusing name, they don't do userspace mmaps, but a kernel vmap. I think most places use vmap for this, except ttm, which uses kmap for vmap for added confusion. mmap seems entirely for userspace mappings set up through mmap(2) syscall. Reviewed-by: Thierry Reding <treding@nvidia.com> Tested-by: Thierry Reding <treding@nvidia.com> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: linux-tegra@vger.kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20191118103536.17675-3-daniel.vetter@ffwll.ch
2019-11-20Merge tag 'topic/drm-mipi-dsi-dsc-updates-2019-11-11' of ↵Maarten Lankhorst
ssh://git.freedesktop.org/git/drm-intel into drm-misc-next Core Changes: - Update DSI data type and command definitions - Add helpers for sending compression mode and PPS packets Driver Changes: - Update tiny/st7586 to reflect a definition change Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87tv7a4eq3.fsf@intel.com
2019-11-20drm/r128: make ATI PCI GART part of its only user, r128Jani Nikula
The ATI Rage 128 driver has been the only user of ATI PCI GART code since Radeon dropped UMS support in commit 8333f607a631 ("drm/radeon: remove UMS support"). Clean up the drm top level directory, Kconfig and Makefile by making ati_pcigart.[ch] part of r128. Drop the CONFIG_DRM_ATI_PCIGART config option made redundant by the change. This reduces drm.ko module size slightly when legacy drivers are enabled, and moves the baggage to r128.ko instead. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191119100536.12024-1-jani.nikula@intel.com
2019-11-19fbdev: Unexport unlink_framebuffer()Thomas Zimmermann
There are no external callers of unlink_framebuffer() left. Make the function an internal interface. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191114125106.28347-4-tzimmermann@suse.de
2019-11-19drm/fb-helper: Remove drm_fb_helper_unlink_fbi()Thomas Zimmermann
There are no callers of drm_fb_helper_unlink_fbi() left. Remove the function. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191114125106.28347-3-tzimmermann@suse.de
2019-11-14drm/print: group logging functions by prink or device basedJani Nikula
In preparation for adding struct drm_device based logging, group the existing functions by prink or struct device based logging. No functional changes. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Sean Paul <sean@poorly.run> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/51c70d80e7dd06c49ba3be56fbb6ae70edddc102.1572258936.git.jani.nikula@intel.com
2019-11-14drm/print: convert debug category macros into an enumJani Nikula
Mostly for improved documentation, convert the debug category macros into an enum. Drop unused DRM_UT_NONE. Document previously undocumented categories. Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Sean Paul <sean@poorly.run> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/96582479e7829d92b89adb805f829e23043ca85c.1572258936.git.jani.nikula@intel.com
2019-11-14drm/print: underscore prefix functions that should be private to printJani Nikula
We don't want people calling the functions directly. No functional changes. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Sean Paul <sean@poorly.run> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/6b236ed4d2e6d2987eaaeb9cb737f9c3699281cc.1572258936.git.jani.nikula@intel.com
2019-11-14drm/print: rename drm_debug to __drm_debug to discourage useJani Nikula
drm_debug_enabled() is the way to check. __drm_debug is now reserved for drm print code only. No functional changes. v2: Rebase on move unlikely() to drm_debug_enabled() Acked-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Eric Engestrom <eric@engestrom.ch> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Sean Paul <sean@poorly.run> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/840ff7292d1a39512bac2fcb1f45de9d50694bf1.1572258936.git.jani.nikula@intel.com
2019-11-14drm: Add a new helper drm_color_ctm_s31_32_to_qm_n()james qian wang (Arm Technology China)
Add a new helper function drm_color_ctm_s31_32_to_qm_n() for driver to convert S31.32 sign-magnitude to Qm.n 2's complement that supported by hardware. V4: Address Mihai, Daniel and Ilia's review comments. V5: Includes the sign bit in the value of m (Qm.n). V6: Allows m = 0 according to Mihail's comments. V7: Address Mihail's comments. V8: Use type 'u32' to replace 'uint32_t' V9: Rebase. Signed-off-by: james qian wang (Arm Technology China) <james.qian.wang@arm.com> Reviewed-by: Mihail Atanassov <mihail.atanassov@arm.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191112110927.20931-2-james.qian.wang@arm.com
2019-11-13drm/fb-helper: unexport drm_fb_helper_generic_probeDaniel Vetter
Not sure we don't yet have this as a patch somewhere ... Motivation is that the automatic lifetime management of the generic fbdev code is quite tricky, and it'll get even more tricky. Allowing drivers to just use the fb_probe looks like a recipe for disaster. Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191112175048.1581-1-daniel.vetter@ffwll.ch
2019-11-08drm/ttm: also export ttm_bo_vm_fault v2Christian König
That is needed by at least a cleanup in radeon. v2: also export ttm_bo_vm_access Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/339353/
2019-11-07drm/dsi: add helpers for DSI compression mode and PPS packetsJani Nikula
Add helper functions for sending the DSI compression mode and picture parameter set data type packets. For the time being, limit the support to using VESA DSC 1.1 and the default PPS. This may need updating if the need arises for proprietary compression or non-default PPS, however keep it simple for starters. v2: Add missing EXPORT_SYMBOL Cc: Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-5-jani.nikula@intel.com
2019-11-07drm/dsi: rename MIPI_DCS_SET_PARTIAL_AREA to MIPI_DCS_SET_PARTIAL_ROWSJani Nikula
The DCS command has been named SET_PARTIAL_ROWS in the DCS spec since v1.02, for more than a decade. Rename the enumeration to match the spec. v2: add comment about the rename (David Lechner) Cc: David Lechner <david@lechnology.com> Cc: Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-4-jani.nikula@intel.com
2019-11-07drm/dsi: add missing DSI DCS commandsJani Nikula
Update from the DCS specification. Cc: Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-3-jani.nikula@intel.com
2019-11-07drm/dsi: add missing DSI data typesJani Nikula
Add execute queue and compressed pixel stream packet data types for completeness. Cc: Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-2-jani.nikula@intel.com
2019-11-07drm/dsi: clean up DSI data type definitionsJani Nikula
Rename picture parameter set (it's a long packet, not a long write) and compression mode (it's not a DCS command) enumerations according to the DSI specification. Order the types according to the spec. Use tabs instead of spaces for indentation. Use all lower case for hex. Cc: Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-1-jani.nikula@intel.com
2019-11-07drm: atomic helper: fix W=1 warningsBenjamin Gaignard
Few for_each macro set variables that are never used later which led to generate unused-but-set-variable warnings. Add (void)(foo) inside the macros to remove these warnings Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191008124254.2144-1-benjamin.gaignard@st.com
2019-11-07drm/fb-helper: Remove drm_fb_helper_fbdev_{setup, teardown}()Thomas Zimmermann
Both functions are unused and can be removed. Drivers should use drm_fbdev_generic_setup() instead. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191106124727.11641-3-tzimmermann@suse.de
2019-11-06drm/ttm: remove ttm_bo_wait_unreservedDaniel Vetter
With nouveau fixed all ttm-using drives have the correct nesting of mmap_sem vs dma_resv, and we can just lock the buffer. Assuming I didn't screw up anything with my audit of course. v2: - Dont forget wu_mutex (Christian König) - Keep the mmap_sem-less wait optimization (Thomas) - Use _lock_interruptible to be good citizens (Thomas) v3: Rebase over fault handler helperification. Reviewed-by: Christian König <christian.koenig@amd.com> (v2) Reviewed-by: Thomas Hellström <thellstrom@vmware.com> (v2) Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Christian Koenig <christian.koenig@amd.com> Cc: Huang Rui <ray.huang@amd.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: "VMware Graphics" <linux-graphics-maintainer@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191104173801.2972-3-daniel.vetter@ffwll.ch
2019-11-04drm/scdc: Fix typo in bit definition of SCDC_STATUS_FLAGSPatrik Jakobsson
Fix typo where bits got compared (x < y) instead of shifted (x << y). Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191016123342.19119-1-patrik.r.jakobsson@gmail.com
2019-11-04drm/ttm: Convert vm callbacks to helpersThomas Hellstrom
The default TTM fault handler may not be completely sufficient (vmwgfx needs to do some bookkeeping, control the write protectionand also needs to restrict the number of prefaults). Also make it possible replicate ttm_bo_vm_reserve() functionality for, for example, mkwrite handlers. So turn the TTM vm code into helpers: ttm_bo_vm_fault_reserved(), ttm_bo_vm_open(), ttm_bo_vm_close() and ttm_bo_vm_reserve(). Also provide a default TTM fault handler for other drivers to use. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/332900/?series=67217&rev=1 Signed-off-by: Christian König <christian.koenig@amd.com>
2019-10-30Revert "dma-buf: Add dma-buf heaps framework"Sean Paul
This reverts commit a69b0e855d3fd278ff6f09a23e1edf929538e304. This patchset doesn't meet the UAPI requirements set out in [1] for the DRM subsystem. Once the userspace component is reviewed and ready for merge we can try again. [1]- https://01.org/linuxgraphics/gfx-docs/drm/gpu/drm-uapi.html#open-source-userspace-requirements Fixes: a69b0e855d3f ("dma-buf: Add dma-buf heaps framework") Cc: Laura Abbott <labbott@redhat.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Liam Mark <lmark@codeaurora.org> Cc: Pratik Patel <pratikp@codeaurora.org> Cc: Brian Starkey <Brian.Starkey@arm.com> Cc: Vincent Donnefort <Vincent.Donnefort@arm.com> Cc: Sudipto Paul <Sudipto.Paul@arm.com> Cc: Andrew F. Davis <afd@ti.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Chenbo Feng <fengc@google.com> Cc: Alistair Strachan <astrachan@google.com> Cc: Hridya Valsaraju <hridya@google.com> Cc: Hillf Danton <hdanton@sina.com> Cc: dri-devel@lists.freedesktop.org Cc: Brian Starkey <brian.starkey@arm.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rob Herring <robh@kernel.org> Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: "Paul E. McKenney" <paulmck@linux.ibm.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: "Andrew F. Davis" <afd@ti.com> Cc: linux-media@vger.kernel.org Cc: linaro-mm-sig@lists.linaro.org Acked-by: David Airlie <airlied@linux.ie> Signed-off-by: Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20191030203003.101156-6-sean@poorly.run
2019-10-29drm/gem: Fix mmap fake offset handling for drm_gem_object_funcs.mmapRob Herring
Commit c40069cb7bd6 ("drm: add mmap() to drm_gem_object_funcs") introduced a GEM object mmap() hook which is expected to subtract the fake offset from vm_pgoff. However, for mmap() on dmabufs, there is not a fake offset. To fix this, let's always call mmap() object callback with an offset of 0, and leave it up to drm_gem_mmap_obj() to remove the fake offset. TTM still needs the fake offset, so we have to add it back until that's fixed. Fixes: c40069cb7bd6 ("drm: add mmap() to drm_gem_object_funcs") Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191024191859.31700-1-robh@kernel.org
2019-10-28drm/fb-helper: Remove drm_fb_helper_defio_init() and update docsThomas Zimmermann
There are no users of drm_fb_helper_defio_init(), so we can remove it. The documentation around defio support is a bit misleading and should mention compatibility issues with SHMEM helpers. Clarify this. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191025092759.13069-2-tzimmermann@suse.de
2019-10-25dma-buf: Add dma-buf heaps frameworkAndrew F. Davis
This framework allows a unified userspace interface for dma-buf exporters, allowing userland to allocate specific types of memory for use in dma-buf sharing. Each heap is given its own device node, which a user can allocate a dma-buf fd from using the DMA_HEAP_IOC_ALLOC. This code is an evoluiton of the Android ION implementation, and a big thanks is due to its authors/maintainers over time for their effort: Rebecca Schultz Zavin, Colin Cross, Benjamin Gaignard, Laura Abbott, and many other contributors! Cc: Laura Abbott <labbott@redhat.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Liam Mark <lmark@codeaurora.org> Cc: Pratik Patel <pratikp@codeaurora.org> Cc: Brian Starkey <Brian.Starkey@arm.com> Cc: Vincent Donnefort <Vincent.Donnefort@arm.com> Cc: Sudipto Paul <Sudipto.Paul@arm.com> Cc: Andrew F. Davis <afd@ti.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Chenbo Feng <fengc@google.com> Cc: Alistair Strachan <astrachan@google.com> Cc: Hridya Valsaraju <hridya@google.com> Cc: Hillf Danton <hdanton@sina.com> Cc: dri-devel@lists.freedesktop.org Reviewed-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Reviewed-by: Brian Starkey <brian.starkey@arm.com> Acked-by: Laura Abbott <labbott@redhat.com> Tested-by: Ayan Kumar Halder <ayan.halder@arm.com> Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191021190310.85221-2-john.stultz@linaro.org
2019-10-25drm/ttm: remove pointers to globalsChristian König
As the name says global memory and bo accounting is global. So it doesn't make to much sense having pointers to global structures all around the code. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Thomas Hellström <thellstrom@vmware.com> Link: https://patchwork.freedesktop.org/patch/332879/
2019-10-25drm/ttm: always keep BOs on the LRUChristian König
This allows blocking for BOs to become available in the memory management. Amdgpu is doing this for quite a while now during CS. Now apply the new behavior to all drivers using TTM. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Thomas Hellstrom <thellstrom@vmware.com> Link: https://patchwork.freedesktop.org/patch/332878/
2019-10-25drm/ttm, drm/vmwgfx: move cpu_writers handling into vmwgfxChristian König
This feature is only used by vmwgfx and superfluous for everybody else. Signed-off-by: Christian König <christian.koenig@amd.com> Co-developed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Tested-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/333650/
2019-10-24drm: Spelling s/connet/connect/Geert Uytterhoeven
Fix misspellings of "connector" and "connection" Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191024151737.29287-1-geert+renesas@glider.be
2019-10-24drm/vram-helpers: Add helpers for prepare_fb() and cleanup_fb()Thomas Zimmermann
The new helpers pin and unpin a framebuffer's GEM VRAM objects during plane updates. This should be sufficient for most drivers' implementation of prepare_fb() and cleanup_fb(). v2: * provide helpers for struct drm_simple_display_pipe_funcs * rename plane-helper funcs Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191024081404.6978-2-tzimmermann@suse.de
2019-10-24drm/simple-kms: Standardize arguments for callbacksDaniel Vetter
Passing the wrong type feels icky, everywhere else we use the pipe as the first parameter. Spotted while discussing patches with Thomas Zimmermann. v2: Make xen compile correctly Acked-By: Thomas Zimmermann <tzimmermann@suse.de> (v1) Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Noralf Trønnes <noralf@tronnes.org> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Eric Anholt <eric@anholt.net> Cc: Emil Velikov <emil.velikov@collabora.com> Cc: virtualization@lists.linux-foundation.org Cc: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191023101256.20509-1-daniel.vetter@ffwll.ch
2019-10-24dma-buf: change DMA-buf locking convention v3Christian König
This patch is a stripped down version of the locking changes necessary to support dynamic DMA-buf handling. It adds a dynamic flag for both importers as well as exporters so that drivers can choose if they want the reservation object locked or unlocked during mapping of attachments. For compatibility between drivers we cache the DMA-buf mapping during attaching an importer as soon as exporter/importer disagree on the dynamic handling. Issues and solutions we considered: - We can't change all existing drivers, and existing improters have strong opinions about which locks they're holding while calling dma_buf_attachment_map/unmap. Exporters also have strong opinions about which locks they can acquire in their ->map/unmap callbacks, levaing no room for change. The solution to avoid this was to move the actual map/unmap out from this call, into the attach/detach callbacks, and cache the mapping. This works because drivers don't call attach/detach from deep within their code callchains (like deep in memory management code called from cs/execbuf ioctl), but directly from the fd2handle implementation. - The caching has some troubles on some soc drivers, which set other modes than DMA_BIDIRECTIONAL. We can't have 2 incompatible mappings, and we can't re-create the mapping at _map time due to the above locking fun. We very carefuly step around that by only caching at attach time if the dynamic mode between importer/expoert mismatches. - There's been quite some discussion on dma-buf mappings which need active cache management, which would all break down when caching, plus we don't have explicit flush operations on the attachment side. The solution to this was to shrug and keep the current discrepancy between what the dma-buf docs claim and what implementations do, with the hope that the begin/end_cpu_access hooks are good enough and that all necessary flushing to keep device mappings consistent will be done there. v2: cleanup set_name merge, improve kerneldoc v3: update commit message, kerneldoc and cleanup _debug_show() Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/336788/
2019-10-23drm/tegra: Move drm_dp_link helpers to Tegra DRMThierry Reding
During the discussion of patches that enhance the drm_dp_link helpers it was concluded that these helpers aren't very useful to begin with. After all other drivers have been converted not to use these helpers anymore, move these helpers into the last remaining user: Tegra DRM. If at some point these helpers are deemed more widely useful, they can be moved out into the DRM DP helpers again. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-14-thierry.reding@gmail.com
2019-10-23drm/dp: Add helper to get post-cursor adjustmentsThierry Reding
If the transmitter supports pre-emphasis post cursor2 the sink will request adjustments in a similar way to how it requests adjustments to the voltage swing and pre-emphasis settings. Add a helper to extract these adjustments on a per-lane basis from the DPCD link status. Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-8-thierry.reding@gmail.com
2019-10-23drm/dp: Add drm_dp_alternate_scrambler_reset_cap() helperThierry Reding
Add a helper to check if the sink supports the eDP alternate scrambler reset value of 0xfffe. Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-6-thierry.reding@gmail.com
2019-10-23drm/dp: Add drm_dp_channel_coding_supported() helperThierry Reding
Add a helper to check whether the sink supports ANSI 8B/10B channel coding capability as specified in ANSI X3.230-1994, clause 11. Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-5-thierry.reding@gmail.com
2019-10-23drm/dp: Add drm_dp_fast_training_cap() helperThierry Reding
Add a helper that checks for the fast training capability given the DPCD receiver capabilities blob. Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-4-thierry.reding@gmail.com
2019-10-23drm/dp: Sort includes alphabeticallyThierry Reding
Keeping the list sorted alphabetically makes it much easier to determine where to add new includes. Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191021143437.1477719-2-thierry.reding@gmail.com
2019-10-23Merge drm/drm-next into drm-misc-nextSean Paul
Parroting Daniel's backmerge justification from 2e79e22e092acd55da0b2db066e4826d7d152c41: Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol value") to be able to merge his dp_link patch series. Signed-off-by: Sean Paul <seanpaul@chromium.org>
2019-10-23Revert "drm/omap: add OMAP_BO flags to affect buffer allocation"Sean Paul
This reverts commit 23b482252836ab3c5e6b3b20ed3038449cbc7679. This patch does not have an acceptable open source userspace implementation, and as such it does not meet the requirements for adding new UAPI. Discussion is in the Link. Link: https://lists.freedesktop.org/archives/dri-devel/2019-October/240586.html Fixes: 23b482252836 ("drm/omap: add OMAP_BO flags to affect buffer allocation") Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Jean-Jacques Hiblot <jjhiblot@ti.com> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191022204733.235801-1-sean@poorly.run
2019-10-23Merge v5.4-rc4 into drm-nextDaniel Vetter
Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol value") to be able to merge his dp_link patch series. Some adjacent changes conflicts, plus some clashes in i915 due to cherry-picking and git trying to be helpful and leaving both versions in. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-10-22drm/edid: Add drm_hdmi_avi_infoframe_bars()Ville Syrjälä
Add a function to fill the AVI infoframe bar information from the standard tv margin properties. Cc: Eric Anholt <eric@anholt.net> Cc: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191008164814.5894-1-ville.syrjala@linux.intel.com Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
2019-10-19Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: "I was battling a cold after some recent trips, so quite a bit piled up meanwhile, sorry about that. Highlights: 1) Fix fd leak in various bpf selftests, from Brian Vazquez. 2) Fix crash in xsk when device doesn't support some methods, from Magnus Karlsson. 3) Fix various leaks and use-after-free in rxrpc, from David Howells. 4) Fix several SKB leaks due to confusion of who owns an SKB and who should release it in the llc code. From Eric Biggers. 5) Kill a bunc of KCSAN warnings in TCP, from Eric Dumazet. 6) Jumbo packets don't work after resume on r8169, as the BIOS resets the chip into non-jumbo mode during suspend. From Heiner Kallweit. 7) Corrupt L2 header during MPLS push, from Davide Caratti. 8) Prevent possible infinite loop in tc_ctl_action, from Eric Dumazet. 9) Get register bits right in bcmgenet driver, based upon chip version. From Florian Fainelli. 10) Fix mutex problems in microchip DSA driver, from Marek Vasut. 11) Cure race between route lookup and invalidation in ipv4, from Wei Wang. 12) Fix performance regression due to false sharing in 'net' structure, from Eric Dumazet" * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (145 commits) net: reorder 'struct net' fields to avoid false sharing net: dsa: fix switch tree list net: ethernet: dwmac-sun8i: show message only when switching to promisc net: aquantia: add an error handling in aq_nic_set_multicast_list net: netem: correct the parent's backlog when corrupted packet was dropped net: netem: fix error path for corrupted GSO frames macb: propagate errors when getting optional clocks xen/netback: fix error path of xenvif_connect_data() net: hns3: fix mis-counting IRQ vector numbers issue net: usb: lan78xx: Connect PHY before registering MAC vsock/virtio: discard packets if credit is not respected vsock/virtio: send a credit update when buffer size is changed mlxsw: spectrum_trap: Push Ethernet header before reporting trap net: ensure correct skb->tstamp in various fragmenters net: bcmgenet: reset 40nm EPHY on energy detect net: bcmgenet: soft reset 40nm EPHYs before MAC init net: phy: bcm7xxx: define soft_reset for 40nm EPHY net: bcmgenet: don't set phydev->link from MAC net: Update address for MediaTek ethernet driver in MAINTAINERS ipv4: fix race condition between route lookup and invalidation ...
2019-10-19net: reorder 'struct net' fields to avoid false sharingEric Dumazet
Intel test robot reported a ~7% regression on TCP_CRR tests that they bisected to the cited commit. Indeed, every time a new TCP socket is created or deleted, the atomic counter net->count is touched (via get_net(net) and put_net(net) calls) So cpus might have to reload a contended cache line in net_hash_mix(net) calls. We need to reorder 'struct net' fields to move @hash_mix in a read mostly cache line. We move in the first cache line fields that can be dirtied often. We probably will have to address in a followup patch the __randomize_layout that was added in linux-4.13, since this might break our placement choices. Fixes: 355b98553789 ("netns: provide pure entropy for net_hash_mix()") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: kernel test robot <oliver.sang@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-18drm/edid: Make drm_get_cea_aspect_ratio() staticVille Syrjälä
drm_get_cea_aspect_ratio() is not used outside drm_edid.c. Make it static. Cc: Wayne Lin <waynelin@amd.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191004141914.20600-1-ville.syrjala@linux.intel.com Reviewed-by: Uma Shankar <uma.shankar@intel.com>
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