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2016-07-19drm/ttm: Delete an unnecessary check before the function call "ttm_tt_destroy"Markus Elfring1-3/+1
The ttm_tt_destroy() 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/54338f58-830c-a8b4-4554-5d4459bcd321@users.sourceforge.net
2016-07-19drm/vgem: Remember to offset relative timeouts to mod_timer() by jiffiesChris Wilson1-2/+2
mod_timer() takes an absolute jiffie value, not a relative timeout and quietly fixup the missed ret=0 otherwise gcc just always returns that the fence timed out. Testcase: igt/vgem_basic/fence Fixes: 407779848445 ("drm/vgem: Attach sw fences to exported vGEM dma-buf") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468834278-26716-1-git-send-email-chris@chris-wilson.co.uk
2016-07-18dma-buf: Release module reference on creation failureChris Wilson1-4/+11
If we fail to create the anon file, we need to remember to release the module reference on the owner. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: linaro-mm-sig@lists.linaro.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468840582-21469-1-git-send-email-chris@chris-wilson.co.uk
2016-07-18drm/arm: make fbdev support really optionalTobias Jakobi1-1/+0
Currently enabling ARM HDLCD 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-21-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/ast: make fbdev support really optionalTobias Jakobi1-4/+0
Currently enabling AST Server 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-20-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/virtio: make fbdev support really optionalTobias Jakobi1-4/+0
Currently enabling VirtIO 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-19-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/udl: make fbdev support really optionalTobias Jakobi1-5/+0
Currently enabling USB DisplayLink 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-17-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/bochs: make fbdev support really optionalTobias Jakobi1-4/+0
Currently enabling Bochs 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-15-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/fsl-dcu: make fbdev support really optionalTobias Jakobi1-5/+0
Currently enabling Freescale DCU 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-14-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/tilcdc: make fbdev support really optionalTobias Jakobi1-1/+0
Currently enabling TI LCDC 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-13-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/gma500: make fbdev support really optionalTobias Jakobi1-4/+0
Currently enabling Intel GMA 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-11-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/shmobile: make fbdev support really optionalTobias Jakobi1-1/+0
Currently enabling SH Mobile 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-9-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/imx: make fbdev support really optionalTobias Jakobi1-1/+0
Currently enabling Freescale i.MX 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-8-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/qxl: make fbdev support really optionalTobias Jakobi1-5/+0
Currently enabling QXL 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-7-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/cirrus: make fbdev support really optionalTobias Jakobi1-4/+0
Currently enabling QEMU Cirrus 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-6-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/mgag200: make fbdev support really optionalTobias Jakobi1-4/+0
Currently enabling MGA G200 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-5-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/omap: make fbdev support really optionalTobias Jakobi1-5/+0
Currently enabling OMAP 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-4-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/armada: make fbdev support really optionalTobias Jakobi1-4/+0
Currently enabling Marvell Armada 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-3-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/arc: make fbdev support really optionalTobias Jakobi1-1/+0
Currently enabling ARC 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-2-git-send-email-tjakobi@math.uni-bielefeld.de
2016-07-18drm/ast: Delete an unnecessary check before ↵Markus Elfring1-2/+1
drm_gem_object_unreference_unlocked() 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
2016-07-18drm/hdlcd: Delete an unnecessary check before drm_fbdev_cma_hotplug_event()Markus Elfring1-2/+1
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: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/c2b0f310-fa06-f4cc-0014-ea7f40564d26@users.sourceforge.net
2016-07-18drm/cirrus: Delete an unnecessary check before ↵Markus Elfring1-2/+2
drm_gem_object_unreference_unlocked() 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/bebf88d8-cc28-657a-e96c-58447d8cf376@users.sourceforge.net
2016-07-18drm/tegra: Delete an unnecessary check before the function call "vunmap"Markus Elfring1-1/+1
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: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/b3fbdcaf-1bda-7ce9-935b-2d716727ec39@users.sourceforge.net
2016-07-18drm/virtgpu: Delete unnecessary checks before ↵Markus Elfring1-4/+2
drm_gem_object_unreference_unlocked() 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: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/5e3dafff-72bb-e616-e84a-368f78fa66b1@users.sourceforge.net
2016-07-18drm/arcpgu: Delete an unnecessary check before drm_fbdev_cma_hotplug_event()Markus Elfring1-2/+1
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: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/dd9a16b1-234c-6776-e6d9-943a8457334e@users.sourceforge.net
2016-07-18drm/vc4: Delete unnecessary checks before two function callsMarkus Elfring2-4/+2
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: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/fb33d930-6a5c-c501-6676-26bd486f1cb5@users.sourceforge.net
2016-07-18drm/rockchip: Delete an unnecessary check before ↵Markus Elfring1-6/+2
drm_gem_object_unreference_unlocked() 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/b66399ed-278b-b85d-4a21-b34164936ef6@users.sourceforge.net
2016-07-18drm/bochs: Delete an unnecessary check before ↵Markus Elfring1-2/+2
drm_gem_object_unreference_unlocked() 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/1e3a8c0d-e737-f092-727e-af7e3810b8dc@users.sourceforge.net
2016-07-18drm/vgem: Attach sw fences to exported vGEM dma-buf (ioctl)Chris Wilson5-1/+396
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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468571471-12610-1-git-send-email-chris@chris-wilson.co.uk
2016-07-15drm/nouveau: make fbdev support really optionalTobias Jakobi1-6/+0
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>
2016-07-15drm/atmel-hlcdc: make fbdev support really optionalTobias Jakobi1-1/+0
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: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-15drm/rcar-du: make fbdev support really optionalTobias Jakobi1-1/+0
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: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-15drm/rockchip: make fbdev support really optionalTobias Jakobi1-4/+0
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: Tobias Jakobi <tjakobi@math.uni-bielefeld.de> Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-15gpu: drm: arcpgu_drv: add missing of_node_put after calling of_parse_phandlePeter Chen1-0/+1
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: Sean Paul <seanpaul@chromium.org>
2016-07-15gpu: drm: exynos_hdmi: add missing of_node_put after calling of_parse_phandlePeter Chen1-0/+2
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: Peter Chen <peter.chen@nxp.com> Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-15gpu: drm: omapdrm: dss-of: add missing of_node_put after calling ↵Peter Chen1-3/+4
of_parse_phandle 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: Peter Chen <peter.chen@nxp.com> Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-15gpu: drm: omapdrm: connector-dvi: add missing of_node_put after calling ↵Peter Chen1-0/+1
of_parse_phandle 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: Peter Chen <peter.chen@nxp.com> Signed-off-by: Sean Paul <seanpaul@chromium.org>
2016-07-14Revert "drm: Resurrect atomic rmfb code"Daniel Vetter3-73/+0
This reverts commit 11c21e73f848844d439cbccb42a1018b8c560e5c. 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: Mika Kuoppala <mika.kuoppala@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468502194-17029-1-git-send-email-daniel.vetter@ffwll.ch
2016-07-14drm: Don't overwrite user ioctl arg unless requestedChris Wilson1-28/+22
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: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468335590-21023-1-git-send-email-chris@chris-wilson.co.uk
2016-07-13dma-buf/sync_file: improve Kconfig description for Sync FilesGustavo Padovan1-3/+12
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>
2016-07-13MAINTAINERS: add entry for the Sync File FrameworkGustavo Padovan1-0/+11
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: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2016-07-13drm: Resurrect atomic rmfb codeDaniel Vetter3-0/+73
This was somehow lost between v3 and the merged version in Maarten's patch merged as: commit f2d580b9a8149735cbc4b59c4a8df60173658140 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: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-24-git-send-email-daniel.vetter@ffwll.ch
2016-07-12drm/vgem: Use PAGE_KERNEL in place of x86-specific PAGE_KERNEL_IOChris Wilson1-1/+1
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: e6f15b763ab2 ("drm/vgem: Enable dmabuf interface for export") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1468325090-27966-1-git-send-email-chris@chris-wilson.co.uk
2016-07-12qxl: silence uninitialized variable warningDan Carpenter1-2/+1
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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20160711084716.GB31411@mwanda
2016-07-12qxl: check for kmap failuresDan Carpenter1-0/+2
If kmap fails, it leads to memory corruption. Fixes: f64122c1f6ad ('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
2016-07-12vga_switcheroo: Sphinxify docsLukas Wunner3-22/+18
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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/3a369602ae35fdbf5e4a12f7e172088c89fa27bb.1468225027.git.lukas@wunner.de
2016-07-12drm: Restore double clflush on the last partial cachelineChris Wilson1-0/+1
This effectively reverts commit afcd950cafea6e27b739fe7772cbbeed37d05b8b 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: afcd950cafea6 (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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1467880930-23082-6-git-send-email-chris@chris-wilson.co.uk
2016-07-12gpu: drm: rockchip_drm_drv: add missing of_node_put after calling ↵Peter Chen1-0/+1
of_parse_phandle 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: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1467684294-20111-2-git-send-email-peter.chen@nxp.com
2016-07-12gpu: drm: sti_vtg: add missing of_node_put after calling of_parse_phandlePeter Chen1-0/+1
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: Peter Chen <peter.chen@nxp.com> Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1467684294-20111-6-git-send-email-peter.chen@nxp.com
2016-07-12gpu: drm: sti_hqvdp: add missing of_node_put after calling of_parse_phandlePeter Chen1-0/+1
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: Peter Chen <peter.chen@nxp.com> Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1467684294-20111-5-git-send-email-peter.chen@nxp.com
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