- 18 Jul, 2016 10 commits
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Markus Elfring authored
The drm_gem_object_unreference_unlocked() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/f28c063f-ec56-e62b-9370-89ce833fa4e5@users.sourceforge.net
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Markus Elfring authored
The drm_fbdev_cma_hotplug_event() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Markus Elfring authored
The drm_gem_object_unreference_unlocked() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Markus Elfring authored
The vunmap() function performs also input parameter validation. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Markus Elfring authored
The drm_gem_object_unreference_unlocked() function tests whether its argument is NULL and then returns immediately. Thus the test around the calls is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Markus Elfring authored
The drm_fbdev_cma_hotplug_event() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Markus Elfring authored
The following functions test whether their argument is NULL and then return immediately. * drm_fbdev_cma_hotplug_event * drm_fbdev_cma_restore_mode Thus the tests around their calls are not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Markus Elfring authored
The drm_gem_object_unreference_unlocked() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Markus Elfring authored
The drm_gem_object_unreference_unlocked() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by:
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Chris Wilson authored
vGEM buffers are useful for passing data between software clients and hardware renders. By allowing the user to create and attach fences to the exported vGEM buffers (on the dma-buf), the user can implement a deferred renderer and queue hardware operations like flipping and then signal the buffer readiness (i.e. this allows the user to schedule operations out-of-order, but have them complete in-order). This also makes it much easier to write tightly controlled testcases for dma-buf fencing and signaling between hardware drivers. v2: Don't pretend the fences exist in an ordered timeline, but allocate a separate fence-context for each fence so that the fences are unordered. v3: Make the debug output more interesting, and show the signaled status. v4: Automatically signal the fence to prevent userspace from indefinitely hanging drivers. Testcase: igt/vgem_basic/dmabuf-fence Testcase: igt/vgem_slow/nohang Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Cc: Sean Paul <seanpaul@chromium.org> Cc: Zach Reizner <zachr@google.com> Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by:
Zach Reizner <zachr@google.com> Signed-off-by:
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- 15 Jul, 2016 8 commits
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Tobias Jakobi authored
Currently enabling Nouveau DRM support automatically pulls in fbdev dependency. However this dep is unnecessary since DRM core already handles this for us (DRM_FBDEV_EMULATION). Signed-off-by:
Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by:
Sean Paul <seanpaul@chromium.org>
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Tobias Jakobi authored
Currently enabling ATMEL HLCDC DRM support automatically pulls in fbdev dependency. However this dep is unnecessary since DRM core already handles this for us (DRM_FBDEV_EMULATION). Signed-off-by:
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Tobias Jakobi authored
Currently enabling R-Car DRM support automatically pulls in fbdev dependency. However this dep is unnecessary since DRM core already handles this for us (DRM_FBDEV_EMULATION). Signed-off-by:
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Tobias Jakobi authored
Currently enabling Rockchip DRM support automatically pulls in fbdev dependency. However this dep is unnecessary since DRM core already handles this for us (DRM_FBDEV_EMULATION). 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: Alexey Brodkin <abrodkin@synopsys.com> 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: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.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: Tomi Valkeinen <tomi.valkeinen@ti.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: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by:
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- 14 Jul, 2016 2 commits
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Daniel Vetter authored
This reverts commit 11c21e73. For reasons totally unclear this manages to wreak havoc with the audio rpm refcount: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 215 at drivers/gpu/drm/i915/intel_runtime_pm.c:1729 intel_display_power_put+0xe8/0x100 [i915] Use count on domain AUDIO is already zero Modules linked in: i915 ax88179_178a usbnet mii snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec x86_pkg_temp_thermal snd_hwdep intel_powerclamp snd_hda_core co f_pclmul crc32_pclmul snd_pcm ghash_clmulni_intel mei_me mei e1000e ptp pps_core i2c_hid [last unloaded: i915] CPU: 0 PID: 215 Comm: kworker/0:2 Not tainted 4.7.0-rc6+ #44 Hardware name: Intel Corporation Skylake Client platform/Skylake Halo DDR4 RVP11, BIOS SKLSE2R1.R00.X106.B00.1601180206 01/18/2016 Workqueue: events output_poll_execute 0000000000000000 ffff88045573fa38 ffffffff813a2d6b ffff88045573fa88 0000000000000000 ffff88045573fa78 ffffffff81075db6 000006c15a590000 ffff88045a59a238 ffff88045a590054 ffff88045a590000 ffff88045a590000 Call Trace: [<ffffffff813a2d6b>] dump_stack+0x4d/0x72 [<ffffffff81075db6>] __warn+0xc6/0xe0 [<ffffffff81075e1a>] warn_slowpath_fmt+0x4a/0x50 [<ffffffffa046399d>] ? hsw_audio_codec_disable+0xdd/0x110 [i915] [<ffffffffa041e638>] intel_display_power_put+0xe8/0x100 [i915] [<ffffffffa049d776>] intel_disable_ddi+0x46/0x80 [i915] [<ffffffffa0474eef>] haswell_crtc_disable+0x16f/0x290 [i915] [<ffffffffa047cb53>] intel_atomic_commit_tail+0x153/0x10e0 [i915] [<ffffffff814aa020>] ? drm_atomic_helper_swap_state+0x140/0x2d0 [<ffffffffa047dedd>] intel_atomic_commit+0x3fd/0x520 [i915] [<ffffffff814d0252>] ? drm_atomic_add_affected_connectors+0x22/0xf0 [<ffffffff814cf8a2>] drm_atomic_commit+0x32/0x50 [<ffffffff814aed07>] restore_fbdev_mode+0x147/0x260 [<ffffffff814b026e>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2e/0x70 [<ffffffff814b02d8>] drm_fb_helper_set_par+0x28/0x50 [<ffffffff814b0203>] drm_fb_helper_hotplug_event+0x143/0x180 [<ffffffffa0498ab5>] intel_fbdev_output_poll_changed+0x15/0x20 [i915] [<ffffffff814a1f92>] drm_kms_helper_hotplug_event+0x22/0x30 [<ffffffff814a2172>] output_poll_execute+0x192/0x1e0 [<ffffffff8108cf7c>] process_one_work+0x14c/0x480 [<ffffffff8108d4fa>] worker_thread+0x24a/0x4e0 [<ffffffff8108d2b0>] ? process_one_work+0x480/0x480 [<ffffffff8108d2b0>] ? process_one_work+0x480/0x480 [<ffffffff81092904>] kthread+0xc4/0xe0 [<ffffffff8173013f>] ret_from_fork+0x1f/0x40 [<ffffffff81092840>] ? kthread_worker_fn+0x180/0x180 ---[ end trace 2d440da5f0c053e4 ]--- Instead of scratching heads too much while CI is down, let's revert before more trouble is caused. Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reported-by:
Mika Kuoppala <mika.kuoppala@intel.com> Reported-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by:
Daniel Vetter <daniel.vetter@intel.com> Signed-off-by:
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Chris Wilson authored
Currently, we completely ignore the user when it comes to the in/out direction of the ioctl argument, as we simply cannot trust userspace. (For example, they might request a copy of the modified ioctl argument when the driver is not expecting such and so leak kernel stack.) However, blindly copying over the target address may also lead to a spurious EFAULT, and a failure after the ioctl was completed successfully. This is important in order to avoid an ABI break when extending an ioctl from IOR to IORW. Similar to how we only copy the intersection of the kernel arg size and the user arg size, we only want to copy back the kernel arg data iff both the kernel and userspace request the copy. Signed-off-by:
Christian König <christian.koenig@amd.com> Signed-off-by:
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- 13 Jul, 2016 3 commits
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Gustavo Padovan authored
We've got a complaint saying that the description was quite obtuse and indeed it was. This patch tries to improve it. Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by:
Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by:
Sumit Semwal <sumit.semwal@linaro.org>
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Gustavo Padovan authored
Add Gustavo as maintainer for the Sync File Framework. Sumit is co-maintainer as he maintains drivers/dma-buf/. It also uses Sumit's tree as base. Signed-off-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
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Daniel Vetter authored
This was somehow lost between v3 and the merged version in Maarten's patch merged as: commit f2d580b9 Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Date: Wed May 4 14:38:26 2016 +0200 drm/core: Do not preserve framebuffer on rmfb, v4. Actual code copied from Maarten's patch, but with the slight change to just use dev->mode_config.funcs->atomic_commit to decide whether to use the atomic path or not. Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
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- 12 Jul, 2016 17 commits
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Chris Wilson authored
Since PAGE_KERNEL_IO is specific to x86 and equivalent to PAGE_KERNEL for our wrapping with pgprot_writecombine(), just use the common define. drivers/gpu/drm/vgem/vgem_drv.c: In function 'vgem_prime_vmap': >> drivers/gpu/drm/vgem/vgem_drv.c:238:53: error: 'PAGE_KERNEL_IO' undeclared (first use in this function) addr = vmap(pages, n_pages, 0, pgprot_writecombine(PAGE_KERNEL_IO)); Reported-by: 0day Fixes: e6f15b76 ("drm/vgem: Enable dmabuf interface for export") Signed-off-by:Matthew Auld <matthew.auld@intel.com> Signed-off-by:
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Dan Carpenter authored
GCC doesn't complain about this but my static checker does. We're passing "drawable" before initializing it. It's not actually used so it's harmless and I just removed it. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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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:
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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=92845Signed-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:
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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:
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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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