- 25 Oct, 2022 5 commits
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Martin Krastev authored
Function vmw_mksstat_add_ioctl allocates three big arrays on stack. That triggers frame-size [-Wframe-larger-than=] warning. Refactor that function to use kmalloc_array instead. v2: Initialize page to null to avoid possible uninitialized use of it, spotted by the kernel test robot <lkp@intel.com> Signed-off-by:Martin Krastev <krastevm@vmware.com> Reviewed-by:
Zack Rusin <zackr@vmware.com> Reviewed-by:
Maaz Mombasawala <mombasawalam@vmware.com> Signed-off-by:
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Zack Rusin authored
Driver id registers are a new mechanism in the svga device to hint to the device which driver is running. This should not change device behavior in any way, but might be convenient to work-around specific bugs in guest drivers. Signed-off-by:
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Luben Tuikov authored
The currently default Round-Robin GPU scheduling can result in starvation of entities which have a large number of jobs, over entities which have a very small number of jobs (single digit). This can be illustrated in the following diagram, where jobs are alphabetized to show their chronological order of arrival, where job A is the oldest, B is the second oldest, and so on, to J, the most recent job to arrive. ---> entities j | H-F-----A--E--I-- o | --G-----B-----J-- b | --------C-------- s\/ --------D-------- WLOG, assuming all jobs are "ready", then a R-R scheduling will execute them in the following order (a slice off of the top of the entities' list), H, F, A, E, I, G, B, J, C, D. However, to mitigate job starvation, we'd rather execute C and D before E, and so on, given, of course, that they're all ready to be executed. So, if all jobs are ready at this instant, the order of execution for this and the next 9 instances of picking the next job to execute, should really be, A, B, C, D, E, F, G, H, I, J, which is their chronological order. The only reason for this order to be broken, is if an older job is not yet ready, but a younger job is ready, at an instant of picking a new job to execute. For instance if job C wasn't ready at time 2, but job D was ready, then we'd pick job D, like this: 0 +1 +2 ... A, B, D, ... And from then on, C would be preferred before all other jobs, if it is ready at the time when a new job for execution is picked. So, if C became ready two steps later, the execution order would look like this: ......0 +1 +2 ... A, B, D, E, C, F, G, H, I, J This is what the FIFO GPU scheduling algorithm achieves. It uses a Red-Black tree to keep jobs sorted in chronological order, where picking the oldest job is O(1) (we use the "cached" structure), and balancing the tree is O(log n). IOW, it picks the *oldest ready* job to execute now. The implementation is already in the kernel, and this commit only changes the default GPU scheduling algorithm to use. This was tested and achieves about 1% faster performance over the Round Robin algorithm. Cc: Christian König <christian.koenig@amd.com> Cc: Alex Deucher <Alexander.Deucher@amd.com> Cc: Direct Rendering Infrastructure - Development <dri-devel@lists.freedesktop.org> Signed-off-by:Luben Tuikov <luben.tuikov@amd.com> Reviewed-by:
Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221024212634.27230-1-luben.tuikov@amd.comSigned-off-by:
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Simon Ser authored
A typical DP-MST unplug removes a KMS connector. However care must be taken to properly synchronize with user-space. The expected sequence of events is the following: 1. The kernel notices that the DP-MST port is gone. 2. The kernel marks the connector as disconnected, then sends a uevent to make user-space re-scan the connector list. 3. User-space notices the connector goes from connected to disconnected, disables it. 4. Kernel handles the IOCTL disabling the connector. On success, the very last reference to the struct drm_connector is dropped and drm_connector_cleanup() is called. 5. The connector is removed from the list, and a uevent is sent to tell user-space that the connector disappeared. The very last step was missing. As a result, user-space thought the connector still existed and could try to disable it again. Since the kernel no longer knows about the connector, that would end up with EINVAL and confused user-space. Fix this by sending a hotplug uevent from drm_connector_cleanup(). Signed-off-by:
Simon Ser <contact@emersion.fr> Cc: stable@vger.kernel.org Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Lyude Paul <lyude@redhat.com> Cc: Jonas Ådahl <jadahl@redhat.com> Tested-by:
Jonas Ådahl <jadahl@redhat.com> Reviewed-by:
Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221017153150.60675-2-contact@emersion.fr
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Simon Ser authored
This reverts commit 981f0929. It turns out this causes logically active but disconnected DP MST connectors to disappear from the KMS resources list, and Mutter then assumes the connector is already disabled. Later on Mutter tries to re-use the same CRTC but fails since on the kernel side it's still tied to the disconnected DP MST connector. Signed-off-by:
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- 24 Oct, 2022 7 commits
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Dmitry Osipenko authored
The drm_client_buffer_delete() wasn't switched to unlocked GEM vunmapping by accident when rest of drm_client code transitioned to the unlocked variants of the vmapping functions. Make drm_client_buffer_delete() use the unlocked variant. This fixes lockdep warning splat about missing reservation lock when framebuffer is released. Reported-by:
kernel test robot <yujie.liu@intel.com> Link: https://lore.kernel.org/dri-devel/890f70db-68b0-8456-ca3c-c5496ef90517@collabora.com/T/ Fixes: 79e2cf2e ("drm/gem: Take reservation lock for vmap/vunmap operations") Signed-off-by:
Dmitry Osipenko <dmitry.osipenko@collabora.com> Acked-by:
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Pin-yen Lin authored
Originally, the it6505 relies on a short sleep in the IRQ handler and a long sleep to make sure it6505->lane_swap and it6505->lane_count is configured in it6505_extcon_work and it6505_detect, respectively. Use completion and additional DPCD read to remove the unnecessary waits, and use a different lock for it6505_extcon_work and the threaded IRQ handler because they no longer need to run exclusively. The wait time of the completion is usually less than 10ms in local experiments, but leave it larger here just in case. Signed-off-by:
Pin-yen Lin <treapking@chromium.org> Reviewed-by:
Robert Foss <robert.foss@linaro.org> Signed-off-by:
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Pin-yen Lin authored
Move the DPCD read and link setup steps to HPD IRQ handler to remove an unnecessary dependency between .detect callback and the HPD IRQ handler before registering it6505 as a DRM bridge. This is safe because there is always a .detect call after each HPD IRQ handler triggered by the drm_helper_hpd_irq_event call. Signed-off-by:
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Pin-yen Lin authored
During device boot, the HPD interrupt could be triggered before the DRM subsystem registers it6505 as a DRM bridge. In such cases, the driver tries to access AUX channel and causes NULL pointer dereference. Initializing the AUX channel earlier to prevent such error. Fixes: b5c84a9e ("drm/bridge: add it6505 driver") Signed-off-by:
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wangjianli authored
Delete the redundant word 'the'. Signed-off-by:
wangjianli <wangjianli@cdjrlc.com> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20221022060701.58280-1-wangjianli@cdjrlc.com
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wangjianli authored
Delete the redundant word 'the'. Signed-off-by:
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Colin Ian King authored
There are a couple of spelling mistakes in DRM_DEBUG messages. Fix them. Signed-off-by:
Colin Ian King <colin.i.king@gmail.com> Signed-off-by:
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- 21 Oct, 2022 5 commits
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Yang Li authored
./drivers/gpu/drm/nouveau/nouveau_dmem.c: nvif/if000c.h is included more than once. Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=2404Reported-by:
Abaci Robot <abaci@linux.alibaba.com> Signed-off-by:
Yang Li <yang.lee@linux.alibaba.com> Reviewed-by:
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Zack Rusin authored
Trivial removal of an unused variable. Not sure how it snuck by me and build bots in the 7c99616e. Fixes: 7c99616e ("drm: Remove drm_mode_config::fb_base") Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Thomas Zimmermann <tzimemrmann@suse.de> Cc: Christian König <christian.koenig@amd.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Karol Herbst <kherbst@redhat.com> Cc: Lyude Paul <lyude@redhat.com> Reviewed-by:
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Alistair Popple authored
Commit 16ce101d ("mm/memory.c: fix race when faulting a device private page") changed the migrate_to_ram() callback to take a reference on the device page to ensure it can't be freed while handling the fault. Unfortunately the corresponding update to Nouveau to accommodate this change was inadvertently dropped from that patch causing GPU to CPU migration to fail so add it here. Signed-off-by:
Alistair Popple <apopple@nvidia.com> Fixes: 16ce101d ("mm/memory.c: fix race when faulting a device private page") Cc: John Hubbard <jhubbard@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Lyude Paul <lyude@redhat.com> Cc: Ben Skeggs <bskeggs@redhat.com> Reviewed-by:
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Sean Hong authored
Add support for the INX - N116BGE-EA2 (HW: C4) panel. Signed-off-by:
Sean Hong <sean.hong@quanta.corp-partner.google.com> Reviewed-by:
Douglas Anderson <dianders@chromium.org> Signed-off-by:
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Sean Hong authored
Add support for the INX - N116BGE-EA2 (HW: C2) panel. Signed-off-by:
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- 20 Oct, 2022 3 commits
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Michał Winiarski authored
The test was constructed as a single function (test case) which checks multiple conditions, calling the function that is tested multiple times with different arguments. This usually means that it can be easily converted into multiple test cases. Split igt_check_plane_state into two parameterized test cases, drm_check_plane_state and drm_check_invalid_plane_state. Passing output: ============================================================ ============== drm_plane_helper (2 subtests) =============== ================== drm_check_plane_state =================== [PASSED] clipping_simple [PASSED] clipping_rotate_reflect [PASSED] positioning_simple [PASSED] upscaling [PASSED] downscaling [PASSED] rounding1 [PASSED] rounding2 [PASSED] rounding3 [PASSED] rounding4 ============== [PASSED] drm_check_plane_state ============== ============== drm_check_invalid_plane_state =============== [PASSED] positioning_invalid [PASSED] upscaling_invalid [PASSED] downscaling_invalid ========== [PASSED] drm_check_invalid_plane_state ========== ================ [PASSED] drm_plane_helper ================= ============================================================ Testing complete. Ran 12 tests: passed: 12 v2: Add missing EXPECT/ASSERT (Maíra) v3: Use single EXPECT insted of condition + KUNIT_FAILURE (Maíra) v4: Rebase after "drm_test" rename Signed-off-by:
Michał Winiarski <michal.winiarski@intel.com> Reviewed-by:
Maíra Canal <mairacanal@riseup.net> Signed-off-by:
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Michał Winiarski authored
Currently the values are printed with debug log level. Adjust the log level and link the output with the test by using kunit_err. Example output: foo: dst: 20x20+10+10, expected: 10x10+0+0 foo: EXPECTATION FAILED at drivers/gpu/drm/tests/drm_plane_helper_test.c:85 Signed-off-by:
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Zack Rusin authored
The fb_base in struct drm_mode_config has been unused for a long time. Some drivers set it and some don't leading to a very confusing state where the variable can't be relied upon, because there's no indication as to which driver sets it and which doesn't. The only usage of fb_base is internal to two drivers so instead of trying to force it into all the drivers to get it into a coherent state completely remove it. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
Thomas Zimmermann <tzimemrmann@suse.de> Acked-by:
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- 18 Oct, 2022 2 commits
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Jocelyn Falempe authored
For G200_SE_A, PLL M setting is wrong, which leads to blank screen, or "signal out of range" on VGA display. previous code had "m |= 0x80" which was changed to m |= ((pixpllcn & BIT(8)) >> 1); Tested on G200_SE_A rev 42 This line of code was moved to another file with commit 877507bb ("drm/mgag200: Provide per-device callbacks for PIXPLLC") but can be easily backported before this commit. v2: * put BIT(7) First to respect MSB-to-LSB (Thomas) * Add a comment to explain that this bit must be set (Thomas) Fixes: 2dd04094 ("drm/mgag200: Store values (not bits) in struct mgag200_pll_values") Cc: stable@vger.kernel.org Signed-off-by:
Jocelyn Falempe <jfalempe@redhat.com> Reviewed-by:
Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20221013132810.521945-1-jfalempe@redhat.com
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Maxime Ripard authored
Let's kick-off this release cycle. Signed-off-by:
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- 17 Oct, 2022 18 commits
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Dmitry Osipenko authored
The internal dma-buf lock isn't needed anymore because the updated locking specification claims that dma-buf reservation must be locked by importers, and thus, the internal data is already protected by the reservation lock. Remove the obsoleted internal lock. Acked-by:
Sumit Semwal <sumit.semwal@linaro.org> Acked-by:
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Dmitry Osipenko authored
All drivers that use dma-bufs have been moved to the updated locking specification and now dma-buf reservation is guaranteed to be locked by importers during the mapping operations. There is no need to take the internal dma-buf lock anymore. Remove locking from the videobuf2 memory allocators. Acked-by:
Tomasz Figa <tfiga@chromium.org> Acked-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Acked-by:
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Dmitry Osipenko authored
Add documentation for the dynamic locking convention. The documentation tells dma-buf API users when they should take the reservation lock and when not. Acked-by:
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Dmitry Osipenko authored
Move dma_buf_mmap() function to the dynamic locking specification by taking the reservation lock. Neither of the today's drivers take the reservation lock within the mmap() callback, hence it's safe to enforce the locking. Acked-by:
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Dmitry Osipenko authored
Move dma-buf attachment mapping functions to the dynamic locking specification by asserting that the reservation lock is held. Acked-by:
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Dmitry Osipenko authored
Move dma-buf attachment API functions to the dynamic locking specification by taking the reservation lock around the mapping operations. The strict locking convention prevents deadlock situations for dma-buf importers and exporters. Acked-by:
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Dmitry Osipenko authored
Move dma_buf_vmap/vunmap() functions to the dynamic locking specification by asserting that the reservation lock is held. Acked-by:
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Dmitry Osipenko authored
Prepare Tegra video decoder driver to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by:
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Dmitry Osipenko authored
Prepare V4L2 memory allocators to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by:
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Dmitry Osipenko authored
Prepare gntdev driver to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by:
Juergen Gross <jgross@suse.com> Acked-by:
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Dmitry Osipenko authored
Prepare fastrpc to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
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Dmitry Osipenko authored
Prepare InfiniBand drivers to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by:
Jason Gunthorpe <jgg@nvidia.com> Acked-by:
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Dmitry Osipenko authored
Prepare Etnaviv driver to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by:
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Dmitry Osipenko authored
Prepare Tegra DRM driver to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by:
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Dmitry Osipenko authored
Prepare OMAP DRM driver to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by:
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Dmitry Osipenko authored
Prepare i915 driver to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions and handling cases where importer now holds the reservation lock. Acked-by:
Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by:
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Dmitry Osipenko authored
Prepare Armada driver to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Acked-by:
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Dmitry Osipenko authored
Prepare DRM prime core to the common dynamic dma-buf locking convention by starting to use the unlocked versions of dma-buf API functions. Reviewed-by:
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