- Jul 12, 2016
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Dan Carpenter authored
If kmap fails, it leads to memory corruption. Fixes: f64122c1 ('drm: add new QXL driver. (v1.4)') Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20160711084633.GA31411@mwanda
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Lukas Wunner authored
Fix up formatting glitches remaining after the automatic rst conversion. Cc: Jonathan Corbet <corbet@lwn.net> Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by:
Lukas Wunner <lukas@wunner.de> Signed-off-by:
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Chris Wilson authored
This effectively reverts commit afcd950c Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Wed Jun 10 15:58:01 2015 +0100 drm: Avoid the double clflush on the last cache line in drm_clflush_virt_range() as we have observed issues with serialisation of the clflush operations on Baytrail+ Atoms with partial updates. Applying the double flush on the last cacheline forces that clflush to be ordered with respect to the previous clflush, and the mfence then protects against prefetches crossing the clflush boundary. The same issue can be demonstrated in userspace with igt/gem_exec_flush. Fixes: afcd950c (drm: Avoid the double clflush on the last cache...) Testcase: igt/gem_concurrent_blit Testcase: igt/gem_partial_pread_pwrite Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92845 Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: dri-devel@lists.freedesktop.org Cc: Akash Goel <akash.goel@intel.com> Cc: Imre Deak <imre.deak@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jason Ekstrand <jason.ekstrand@intel.com> Cc: stable@vger.kernel.org Reviewed-by:
Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by:
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Peter Chen authored
of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: Mark Yao <mark.yao@rock-chips.com> Cc: Heiko Stuebner <heiko@sntech.de> Signed-off-by:
Peter Chen <peter.chen@nxp.com> Signed-off-by:
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Peter Chen authored
of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by:
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Peter Chen authored
of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Signed-off-by:
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Peter Chen authored
of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Signed-off-by:
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Peter Chen authored
of_node_put needs to be called when the device node which is got from of_parse_phandle has finished using. Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Signed-off-by:
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Gustavo Padovan authored
Remove legacy usage of drm_handle_vblank() Signed-off-by:
Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by:
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Gustavo Padovan authored
Remove legacy usage of drm_handle_vblank() Signed-off-by:
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Gustavo Padovan authored
Remove legacy usage of drm_handle_vblank() Signed-off-by:
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Gustavo Padovan authored
Remove legacy usage of drm_handle_vblank() Signed-off-by:
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Gustavo Padovan authored
Remove legacy usage of drm_handle_vblank() Signed-off-by:
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Gustavo Padovan authored
As they are not used anywhere outside drm_irq.c make them static. Signed-off-by:
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Dan Carpenter authored
We should be checking "phy_provider" here not "phy". Fixes: 2e54c14e ('drm/mediatek: Add DSI sub driver') Signed-off-by:
Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by:
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Bhaktipriya Shridhar authored
System workqueues have been able to handle high level of concurrency for a long time now and there's no reason to use dedicated workqueues just to gain concurrency. Since the workqueue in the QXL graphics device driver is involved in freeing and processing the release ring (workitem &qdev->gc_workqxl, maps to gc_work which calls qxl_garbage_collect) and is not being used on a memory reclaim path, dedicated gc_queue has been replaced with the use of system_wq. Unlike a dedicated per-cpu workqueue created with create_workqueue(), system_wq allows multiple work items to overlap executions even on the same CPU; however, a per-cpu workqueue doesn't have any CPU locality or global ordering guarantees unless the target CPU is explicitly specified and thus the increase of local concurrency shouldn't make any difference. flush_work() has been called in qxl_device_fini() to ensure that there are no pending tasks while disconnecting the driver. Signed-off-by:
Bhaktipriya Shridhar <bhaktipriya96@gmail.com> Acked-by:
Tejun Heo <tj@kernel.org> Signed-off-by:
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Xinliang Liu authored
Vblank turn on should be called in crtc's enable callback. And turn off called in crtc's disable callback. Thanks to Daniel Vetter, this bug is reported by him. Reported-by:
Daniel Vetter <daniel.vetter@intel.com> Signed-off-by:
Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by:
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Alexey Khoroshilov authored
If class_create() fails, there is no need for class_destroy(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by:
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Benjamin Herrenschmidt authored
That constant isn't meant to be used outside of arch mm code Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Thierry Reding authored
Use a consistent name for the function that implements set_tear_scanline and reword and reformat the kerneldoc slightly. Signed-off-by:
Thierry Reding <treding@nvidia.com> Signed-off-by:
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Thierry Reding authored
The QXL driver sets DRIVER_MODESET unconditionally, so testing for the absence of the feature will always fail. Signed-off-by:
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Frank Binns authored
Use the appropriate drm minor type helper instead. Cc: Sinclair Yeh <syeh@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by:
Frank Binns <frank.binns@imgtec.com> Reviewed-by:
Sinclair Yeh <syeh@vmware.com> Signed-off-by:
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Chris Wilson authored
Rather than manually perform our unregistration actions before shutting down the device, move them to drm_unplug_dev(). Signed-off-by:
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Chris Wilson authored
Rather than do a partial unregister of just the minors, unregister the device (drm_dev_unregister(), and so remove all userspace interfaces, when the device is unplugged (drm_unplug_dev()). Signed-off-by:
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Chris Wilson authored
This has now been removed from all drivers as it is performed centrally as a part of device registration for modesetting drivers. With the last user gone, we can unexport it from the DRM module. Signed-off-by:
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Tobias Jakobi authored
Currently enabling Exynos DRM support automatically pulls in lots of fbdev dependencies. However these deps are unnecessary since DRM core already enables them when needed. Signed-off-by:
Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by:
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Michel Dänzer authored
Consolidate the _DRM_VBLANK_NEXTONMISS handling between drm_wait_vblank and drm_queue_vblank_event. This is a cleanup spotted while working on other changes. (The way it was previously handled could also theoretically result in drm_queue_vblank_event unnecessarily bumping vblwait->request.sequence, if the vblank counter happened to increment between the drm_vblank_count(_and_time) calls in each function, but that's unlikely) Signed-off-by:
Michel Dänzer <michel.daenzer@amd.com> Reviewed-by:
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Chris Wilson authored
Enable the standard GEM dma-buf interface provided by the DRM core, but only for exporting the VGEM object. This allows passing around the VGEM objects created from the dumb interface and using them as sources elsewhere. Creating a VGEM object for a foriegn handle is not supported. v2: With additional completeness. v3: Need to clear the CPU cache upon exporting the dma-addresses. v4: Use drm_gem_put_pages() as well. v5: Use drm_prime_pages_to_sg() Testcase: igt/vgem_basic/dmabuf-* Testcase: igt/prime_vgem Signed-off-by:
Zach Reizner <zachr@google.com> Reviewed-by:
Matthew Auld <matthew.auld@intel.com> Signed-off-by:
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Chris Wilson authored
The vGEM mmap code has bitrotted slightly and now immediately BUGs. Since vGEM was last updated, there are new core GEM facilities to provide more common functions, so let's use those here. v2: drm_gem_free_mmap_offset() is performed from drm_gem_object_release() so we can remove the redundant call. Testcase: igt/vgem_basic/mmap Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96603 Signed-off-by:
Humberto Israel Perez Rodriguez <humberto.i.perez.rodriguez@intel.com> Reviewed-by:
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- Jun 30, 2016
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Masanari Iida authored
This patch fix a spelling typo found in Documentation/DocBook/gpu/API-drm-ioctl-flags.html It is because the html file was created from comments in source, I have to fix the source. Signed-off-by:
Masanari Iida <standby24x7@gmail.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20160629234706.31209-1-standby24x7@gmail.com
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- Jun 27, 2016
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Frank Binns authored
Signed-off-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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- Jun 24, 2016
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Lukas Wunner authored
Use shiny new drm_crtc_force_disable() instead of open coding the same. No functional change intended. Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by:
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Lukas Wunner authored
Use shiny new drm_crtc_force_disable() instead of open coding the same. No functional change intended. Cc: Francisco Jerez <currojerez@riseup.net> Signed-off-by:
Francisco Jerez <currojerez@riseup.net> Signed-off-by:
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Lukas Wunner authored
Use shiny new drm_crtc_force_disable() instead of open coding the same. No functional change intended. Signed-off-by:
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Lukas Wunner authored
amdgpu leaks a runtime pm ref if at least one CRTC is enabled on unload. The ref is taken by amdgpu_crtc_set_config() and held as long as a CRTC is in use. Fix by turning off all CRTCs on unload. Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Lukas Wunner authored
radeon leaks a runtime pm ref if at least one CRTC is enabled on unload. The ref is taken by radeon_crtc_set_config() and held as long as a CRTC is in use. Fix by turning off all CRTCs on unload. Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Lukas Wunner authored
nouveau leaks a runtime pm ref if at least one CRTC is enabled on unload. The ref is taken by nouveau_crtc_set_config() and held as long as a CRTC is in use. nv04_display_destroy() should solve this by turning off all CRTCs, but (1) nv50_display_destroy() doesn't do the same and (2) it's broken since commit d6bf2f37 ("drm/nouveau: run mode_config destructor before destroying internal display state") because the crtc structs are torn down by drm_mode_config_cleanup() before being turned off. Also, there's no locking. Move the code to turn off all CRTCs from nv04_display_destroy() to nouveau_display_destroy() so that it's called for both nv04 and nv50 and before drm_mode_config_cleanup(). Use drm_crtc_force_disable_all() helper to save on code and have proper locking. Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by:
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Lukas Wunner authored
Turning off a single CRTC or all active CRTCs of a DRM device is a fairly common pattern. Add helpers to avoid open coding this everywhere. The name was chosen to be consistent with drm_plane_force_disable(). Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by:
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Lukas Wunner authored
The PCI core calls pm_runtime_forbid() on device probe in pci_pm_init(), making this the default state when amdgpu is loaded. amdgpu_driver_load_kms() therefore calls pm_runtime_allow(), but there's no pm_runtime_forbid() in amdgpu_driver_unload_kms() to balance it. Add it so that we leave the device in the same state that we found it. This isn't a bug, it's just good housekeeping. When amdgpu is first loaded with runpm=1, then unloaded and loaded again with runpm=0, pm_runtime_forbid() will be called from amdgpu_pmops_runtime_idle() or amdgpu_pmops_runtime_suspend(), so the behaviour is correct. If there ever is a third party driver for AMD cards, this commit avoids that it has to clean up behind amdgpu. Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Lukas Wunner authored
If an error occurs in amdgpu_device_init() after adev->rmmio has been set, its caller amdgpu_driver_load_kms() will skip runtime pm initialization and call amdgpu_driver_unload_kms(), which acquires a runtime pm ref that is leaked. Balance by releasing a runtime pm ref in the error path of amdgpu_driver_load_kms(). Fixes: d38ceaf9 ("drm/amdgpu: add core driver (v4)") Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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