- 03 Dec, 2020 2 commits
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Tian Tao authored
Add new api devm_drm_irq_install() to register interrupts, no need to call drm_irq_uninstall() when the drm module is removed. Signed-off-by:
Tian Tao <tiantao6@hisilicon.com> Reviewed-by:
Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/1606901212-8214-3-git-send-email-tiantao6@hisilicon.com
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Tian Tao authored
Use the devm_drm_dev_alloc provided by the drm framework to alloc a structure hibmc_drm_private. Signed-off-by:
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- 02 Dec, 2020 4 commits
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Simon Ser authored
It seems like we can't have nice things, so let's just document the disappointing behaviour instead. The previous version assumed the kernel would perform the probing work when appropriate, however this is not the case today. Update the documentation to reflect reality. v2: - Improve commit message to explain why this change is made (Pekka) - Keep the bit about flickering (Daniel) - Explain when user-space should force-probe, and when it shouldn't (Daniel) Signed-off-by:
Simon Ser <contact@emersion.fr> Fixes: 2ac5ef3b ("drm: document drm_mode_get_connector") Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by:
Pekka Paalanen <pekka.paalanen@collabora.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/AxqLnTAsFCRishOVB5CLsqIesmrMrm7oytnOVB7oPA@cp7-web-043.plabs.ch
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Gurchetan Singh authored
This an incremental refactor towards multiple dma-fence contexts in virtio-gpu. Since all fences are still allocated using &virtio_gpu_fence_driver.context, nothing should break and every processed fence will be signaled. The overall idea is every 3D context can allocate a number of dma-fence contexts. Each dma-fence context refers to it's own timeline. For example, consider the following case where virgl submits commands to the GPU (fence ids 1, 3) and does a metadata query with the CPU (fence id 5). In a different process, gfxstream submits commands to the GPU (fence ids 2, 4). fence_id (&dma_fence.seqno) | 1 2 3 4 5 ----------------------------------|----------- fence_ctx 0 (virgl gpu) | 1 3 fence_ctx 1 (virgl metadata query)| 5 fence_ctx 2 (gfxstream gpu) | 2 4 With multiple fence contexts, we can wait for the metadata query to finish without waiting for the virgl gpu to finish. virgl gpu does not have to wait for gfxstream gpu. The fence id still is the monotonically increasing sequence number, but it's only revelant to the specific dma-fence context. To fully enable this feature, we'll need to: - have each 3d context allocate a number of fence contexts. Not too hard with explicit context initialization on the horizon. - have guest userspace specify fence context when performing ioctls. - tag each fence emitted to the host with the fence context information. virtio_gpu_ctrl_hdr has padding + flags available, so that should be easy. This change goes in the direction specified above, by: - looking up the virtgpu_fence given a fence_id - signalling all prior fences in a given context - signalling current fence v2: fix grammar in comment v3: add r-b tags Reviewed-by:Anthoine Bourgeois <anthoine.bourgeois@gmail.com> Signed-off-by:
Gurchetan Singh <gurchetansingh@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20201201021623.619-3-gurchetansingh@chromium.orgSigned-off-by:
Gerd Hoffmann <kraxel@redhat.com>
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Gurchetan Singh authored
virtio_gpu_fence_event_process sets the last_fence_id and subsequently calls dma_fence_signal_locked(..). dma_fence_signal_locked(..) sets DMA_FENCE_FLAG_SIGNALED_BIT, which is actually checked before &dma_fence_ops.(*signaled) is called. The check for last_fence_id is therefore a bit redundant, and it will not be sufficient to check the last_fence_id for multiple synchronization timelines. Remove it. v3: add r-b tags Signed-off-by:
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Gurchetan Singh authored
virtio_gpu typically uses the prefix virtio_gpu, but there are a few places where the virtio prefix is used. Modify this for consistency. v3: add r-b tags Signed-off-by:
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- 01 Dec, 2020 4 commits
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Christian König authored
Daniel added a warning for this, but we were abusing that behavior here. Signed-off-by:
Christian König <christian.koenig@amd.com> Fixes: 57fcd550 ("drm/ttm: Warn on pinning without holding a reference") Acked-by:
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Daniel Vetter authored
Purely conjecture, but I think the original locking inversion with the legacy page flip code between flipping and ttm's bo move function shoudn't exist anymore with atomic: With atomic the bo pinning and actual modeset commit is completely separated in the code patsh. This annotation was originally added in commit 060810d7 Author: Ben Skeggs <bskeggs@redhat.com> Date: Mon Jul 8 14:15:51 2013 +1000 drm/nouveau: fix locking issues in page flipping paths due to commit b580c9e2 Author: Maarten Lankhorst <m.b.lankhorst@gmail.com> Date: Thu Jun 27 13:48:18 2013 +0200 drm/nouveau: make flipping lockdep safe Acked-by:
Ben Skeggs <bskeggs@redhat.com> Reviewed-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Cc: Maarten Lankhorst <m.b.lankhorst@gmail.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Dave Airlie <airlied@gmail.com> Cc: nouveau@lists.freedesktop.org Link: https://patchwork.freedesktop.org/patch/msgid/20201127163528.2221671-1-daniel.vetter@ffwll.ch
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Jialin Zhang authored
Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 5c49fd3a ("gma500: Add the core DRM files and headers") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Jialin Zhang <zhangjialin11@huawei.com> Signed-off-by:
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Christian König authored
ttm_module.h deals with internals of TTM and should never be include outside of it. v2: also move the file around Signed-off-by:
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- 30 Nov, 2020 25 commits
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Sam Ravnborg authored
Fix warnings by deleting unused code. The register reads are kept as it is unknown if there are any hidden side-effects. v2: - Update subject (Lee) Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Acked-by:
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Sam Ravnborg authored
Fix W=1 warnings by removing unused code v2: - Updated subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix set but not used warnings by introducing no_printk variants for the internal logging system for this driver. Fix a new warning that popped up now that logging was checked for correct printf format strings. A more invasive fix had been to replace all the internal logging with standard logging primitives - thats for another day. v2: - Update subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix W=1 warnings: - Fix kernel-doc - Drop unused code/variables - Use memcpy to copy a string without zero-termination strncpy() generates a warning v2: - Updated subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix W=1 warnings: - Fix kernel-doc - Drop unused code v2: - Updated subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fixed a few kernel-doc issues to fix the warnings. v2: - Updated subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix W=1 warnings: - Fix kernel-doc - Drop unused variables/code v2: - Updated subject (Lee) Signed-off-by:
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Sam Ravnborg authored
The tmp variable was assigned but the result was never used, so delete the tmp variable. v2: - Update subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix warning by deleting the variable. The function call viafb_get_best_mode() was verified to have no side-effects, and thus could be dropped too. v2: - Update subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix warnings by dropping unused variable and the unused assignments. v2: - Update subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix "set but not used" warnings by removing the code the assign the variables and the definition of the variables. A register read is kept as it may have unknown side-effects. This removes a lot of unused code - which is always a good thing to do. v2: - Updated subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix W=1 warning by commenting unused SiS_TVDelay* variables. The SiS_TVDelay* variables seem to contain some magic numbers so looks like data worth keeping around but not as code we build. v2: - Update subject (Lee) Signed-off-by:
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Sam Ravnborg authored
init.h defines static symbols, so it should only be included once. Drop the include from sis.h as it is not needed. This fixes a lot of warnings seen with a W=1 build. v2: - Update subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix W=1 warnings about variables assigned but never used. - One variable is only used when CONFIG_FB_ATY_GENERIC_LCD is defined Fix so variable is only defined with CONFIG_FB_ATY_GENERIC_LCD - Several variables was only assigned by a call to aty_ld_le32(). Drop the variables but keep the call to aty_ld_le32() as it may have unexpected side-effects. v2: - Updated subject (Lee) Signed-off-by:
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Sam Ravnborg authored
Fix W=1 warnings about variables assigned but never used. - Drop variables that were set but never used - Make variable definition conditional on ATARI v2: - Fix m68k build error (kernel test robot) - Improve subject (Lee Jones) Signed-off-by:
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Sam Ravnborg authored
Fix warning about variable that is asssigned a value but never used. The variable was indeed never used so delete it. Keep the call to radeon_probe_i2c_connector() as it may have side-effects. It is unlikely but I could not verify that is was safe to drop the call. Signed-off-by:
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Christian König authored
Mapping the imported pages of a DMA-buf into an userspace process doesn't work as expected. But we have reoccurring requests on this approach, so split the functions for this and document that dma_buf_mmap() needs to be used instead. v2: split it into two functions v3: rebased on latest changes v4: update commit message a bit Signed-off-by:
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Christian König authored
Not used any more. Signed-off-by:
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Christian König authored
The function qxl_gem_prime_import_sg_table is not fully implemented. Signed-off-by:
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Christian König authored
According to Daniel VMWGFX doesn't support DMA-buf anyway. Signed-off-by:
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Christian König authored
This is deprecated, also drop the comment about faults. v2: also use ttm_sg_tt_init to avoid allocating the page array. Signed-off-by:
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Christian König authored
This is deprecated. Signed-off-by:
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Christian König authored
This is deprecated. v2: also use ttm_sg_tt_init to avoid allocating the page array. Signed-off-by:
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Thomas Zimmermann authored
The new GEM object function drm_gem_cma_mmap() sets the VMA flags and offset as in the old implementation and immediately maps in the buffer's memory pages. Changing CMA helpers to use the GEM object function allows for the removal of the special implementations for mmap and gem_prime_mmap callbacks. The regular functions drm_gem_mmap() and drm_gem_prime_mmap() are now used. Signed-off-by:
Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201123115646.11004-3-tzimmermann@suse.de
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Thomas Zimmermann authored
These functions are not directly related to PRIME interfaces any longer, but are now GEM object functions. Rename them accordingly and fix the docs. Signed-off-by:
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- 29 Nov, 2020 5 commits
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Douglas Anderson authored
Add support for the BOE NV110WTM-N61 panel. The EDID lists two modes (one for 60 Hz refresh rate and one for 40 Hz), so we'll list both of them here. Note that the panel datasheet requires 80 ms between HPD asserting and the backlight power being turned on. We'll use the new timing constraints structure to do this cleanly. This assumes that the backlight will be enabled _after_ the panel enable finishes. This is how it works today and seems a sane assumption. Signed-off-by:
Douglas Anderson <dianders@chromium.org> Signed-off-by:
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Douglas Anderson authored
Add yet another eDP panel. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Douglas Anderson authored
On the panel I'm looking at, there's an 80 ms minimum time between HPD being asserted by the panel and setting the backlight enable GPIO. While we could just add an 80 ms "enable" delay, this is not ideal. Link training is allowed to happen in parallel with this delay so the fixed 80 ms delay over-delays. We'll support this by logging the time at the end of prepare and then delaying in enable if enough time hasn't passed. Signed-off-by:
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Douglas Anderson authored
It is believed that all of the current users of the "unprepare" delay don't actually need to wait the amount of time specified directly in the unprepare phase. The purpose of the delay that's specified is to allow the panel to fully power off so that we don't try to power it back on before it's managed to full power down. Let's use this observation to avoid the fixed delay that we currently have. Instead of delaying, we'll note the current time when the unprepare happens. If someone then tries to prepare the panel later and not enough time has passed, we'll do the delay before starting the prepare phase. Signed-off-by:
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Douglas Anderson authored
When I run: scripts/kernel-doc -rst drivers/gpu/drm/panel/panel-simple.c I see that several of the kernel-doc entries aren't showing up because they don't specify the full path down the hierarchy. Let's fix that and also move to inline kernel docs. Signed-off-by:
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