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linux/drivers/gpu/drm
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Chris Wilson 60b801999c drm: Wake up next in drm_read() chain if we are forced to putback the event 
After an event is sent, we try to copy it into the user buffer of the
first waiter in drm_read() and if the user buffer doesn't have enough
room we put it back onto the list. However, we didn't wake up any
subsequent waiter, so that event may sit on the list until either a new
vblank event is sent or a new waiter appears. Rare, but in the worst
case may lead to a stuck process.

Testcase: igt/drm_read/short-buffer-wakeup
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170804082328.17173-1-chris@chris-wilson.co.uk
 		2019-02-27 22:04:54 +00:00
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amd drm/drv: drm_dev_unplug(): Move out drm_dev_put() call 2019-02-21 12:11:58 +01:00
arc drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
arm drm/komeda: fix build with drm_modeset_helper.h update 2019-02-11 10:36:00 +01:00
armada drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
ast Merge branch 'drm-next-5.1' of git://people.freedesktop.org/~agd5f/linux into drm-next 2019-02-04 14:57:34 +10:00
atmel-hlcdc drm/irq: Don't check for DRIVER_HAVE_IRQ in drm_irq_(un)install 2019-01-29 15:45:06 +01:00
bochs drm/bochs: fix bochs_gem_prime_mmap 2019-02-05 10:28:15 +01:00
bridge Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
cirrus drm/cirrus: add plane setup 2019-02-05 10:28:13 +01:00
etnaviv drm: etnaviv: Switch to use drm_gem_object reservation_object 2019-02-19 11:08:40 +01:00
exynos drm/exynos: Change Andrzej Pietrasiewicz's e-mail address 2019-02-07 19:59:44 +09:00
fsl-dcu drm/irq: Don't check for DRIVER_HAVE_IRQ in drm_irq_(un)install 2019-01-29 15:45:06 +01:00
gma500 drm/irq: Ditch DRIVER_IRQ_SHARED 2019-01-29 15:45:21 +01:00
hisilicon drm/irq: Don't check for DRIVER_HAVE_IRQ in drm_irq_(un)install 2019-01-29 15:45:06 +01:00
i2c drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
i810
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i915 drm/i915: Attach colorspace property and enable modeset 2019-02-19 18:51:43 +01:00
imx Merge drm/drm-next into drm-misc-next 2019-02-19 11:17:05 +01:00
lib
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mediatek drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
meson Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
mga drm/irq: Ditch DRIVER_IRQ_SHARED 2019-01-29 15:45:21 +01:00
mgag200 Merge branch 'drm-next-5.1' of git://people.freedesktop.org/~agd5f/linux into drm-next 2019-02-04 14:57:34 +10:00
msm Merge drm/drm-next into drm-misc-next 2019-02-19 11:17:05 +01:00
mxsfb drm/irq: Don't check for DRIVER_HAVE_IRQ in drm_irq_(un)install 2019-01-29 15:45:06 +01:00
nouveau Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
omapdrm Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
panel drm/panel: Add Ronbo RB070D30 panel 2019-02-26 15:58:53 +01:00
pl111 drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
qxl drm/qxl: remove set but not used variable 'bo_old' 2019-02-21 13:04:16 +01:00
r128 drm/irq: Ditch DRIVER_IRQ_SHARED 2019-01-29 15:45:21 +01:00
radeon drm: change func to better detect wether swiotlb is needed 2019-02-20 13:29:29 +01:00
rcar-du Merge drm/drm-next into drm-misc-next 2019-02-11 10:35:35 +01:00
rockchip Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
savage drm/savage: mark expected switch fall-throughs 2019-01-30 17:35:29 +01:00
scheduler Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
selftests drm/selftest: fix spelling mistake "dimention" -> "dimension" 2018-12-11 15:19:42 +01:00
shmobile drm/irq: Don't check for DRIVER_HAVE_IRQ in drm_irq_(un)install 2019-01-29 15:45:06 +01:00
sis
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sti drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
stm drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
sun4i Merge drm/drm-next into drm-misc-next 2019-02-19 11:17:05 +01:00
tdfx
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tegra drm/tegra: Changes for v5.1-rc1 2019-02-11 13:32:49 +10:00
tilcdc drm/irq: Don't check for DRIVER_HAVE_IRQ in drm_irq_(un)install 2019-01-29 15:45:06 +01:00
tinydrm drm/tinydrm: Trivia typo fix 2019-02-21 12:23:48 +01:00
ttm drm/ttm: Remove ttm_bo_reference and ttm_bo_unref 2019-01-28 11:43:38 -05:00
tve200 drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
udl drm/drv: drm_dev_unplug(): Move out drm_dev_put() call 2019-02-21 12:11:58 +01:00
v3d drm: v3d: Switch to use drm_gem_object reservation_object 2019-02-19 11:08:40 +01:00
vc4 drm: Remove set but not used variable 'gem' 2019-02-19 11:08:41 +01:00
vgem dma-buf: make fence sequence numbers 64 bit v2 2018-12-07 12:44:16 +01:00
via drm/via: mark expected switch fall-throughs 2019-01-30 17:35:29 +01:00
virtio Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
vkms Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
vmwgfx Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
xen drm/drv: drm_dev_unplug(): Move out drm_dev_put() call 2019-02-21 12:11:58 +01:00
zte drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
Kconfig drm/cma-helper: Remove unused fbdev code 2019-01-17 10:56:38 +01:00
Makefile drm: rcar-du: lvds: Add API to enable/disable clock output 2019-02-08 02:25:56 +02:00
ati_pcigart.c drm/ati_pcigart: Fix error code in drm_ati_pcigart_init() 2018-12-17 10:47:17 +01:00
drm_agpsupport.c drm: Trivial comment grammar cleanups 2019-02-04 10:21:17 +01:00
drm_atomic.c drm-misc-next for 5.1: 2019-01-10 05:58:52 +10:00
drm_atomic_helper.c drm/atomic: Add drm_atomic_state->duplicated 2019-02-05 18:19:00 -05:00
drm_atomic_state_helper.c drm: Put damage blob when destroy plane state 2018-12-24 11:53:50 +01:00
drm_atomic_uapi.c drm: Add HDMI colorspace property 2019-02-19 18:50:55 +01:00
drm_auth.c drm: set is_master to 0 upon drm_new_set_master() failure 2018-11-26 16:14:27 -05:00
drm_blend.c
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drm_bridge.c drm: bridge: Constify mode arguments to bridge .mode_set() operation 2019-01-14 03:51:14 +02:00
drm_bufs.c drm: Trivial comment grammar cleanups 2019-02-04 10:21:17 +01:00
drm_cache.c
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drm_client.c drm/gem: Add drm_gem_object_funcs 2018-11-20 14:56:18 +01:00
drm_color_mgmt.c drm: Constify drm_color_lut_check() 2019-01-29 23:26:12 +02:00
drm_connector.c drm: Add HDMI colorspace property 2019-02-19 18:50:55 +01:00
drm_context.c drm: Fix error handling in drm_legacy_addctx 2019-01-07 11:26:31 +01:00
drm_crtc.c drm: Move the legacy kms disable_all helper to crtc helpers 2019-01-11 22:54:29 +01:00
drm_crtc_helper.c drm: Remove use of drm_mode_object 2019-01-15 13:20:56 +01:00
drm_crtc_helper_internal.h
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drm_crtc_internal.h drm: Unexport drm_crtc_force_disable 2019-01-11 15:56:40 +01:00
drm_damage_helper.c drm: prepare for drmP.h removal from drm_modeset_helper.h 2019-02-07 21:48:28 +01:00
drm_debugfs.c drm: Merge drm_info.c into drm_debugfs.c 2018-11-22 09:52:27 +01:00
drm_debugfs_crc.c
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drm_dma.c
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drm_dp_aux_dev.c
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drm_dp_cec.c
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drm_dp_dual_mode_helper.c
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drm_dp_helper.c drm/dsc: Add kernel documentation for DRM DP DSC helpers 2019-02-08 13:38:51 -08:00
drm_dp_mst_topology.c drm/dp_mst: Remove rebase-detritus in VCPI helper kernel-docs 2019-02-06 13:37:38 -05:00
drm_drv.c drm/drv: drm_dev_unplug(): Move out drm_dev_put() call 2019-02-21 12:11:58 +01:00
drm_dsc.c drm/dsc: Add kernel documentation for DRM DP DSC helpers 2019-02-08 13:38:51 -08:00
drm_dumb_buffers.c
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drm_edid.c drm: Add colorspace info to AVI Infoframe 2019-02-19 18:51:12 +01:00
drm_edid_load.c
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drm_encoder.c
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drm_encoder_slave.c
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drm_fb_cma_helper.c drm/cma-helper: Remove unused fbdev code 2019-01-17 10:56:38 +01:00
drm_fb_helper.c drm/fb-helper: generic: Don't take module ref for fbcon 2019-02-21 12:24:28 +01:00
drm_file.c drm: Wake up next in drm_read() chain if we are forced to putback the event 2019-02-27 22:04:54 +00:00
drm_flip_work.c drm: move drm_can_sleep() to drm_util.h 2019-01-14 10:58:37 +01:00
drm_fourcc.c drm/fourcc: Add new P010, P016 video format 2019-02-08 22:17:08 +01:00
drm_framebuffer.c drm: Trivial comment grammar cleanups 2019-02-04 10:21:17 +01:00
drm_gem.c drm: Add reservation_object to drm_gem_object 2019-02-19 11:08:40 +01:00
drm_gem_cma_helper.c drm/cma-helper: Add DRM_GEM_CMA_VMAP_DRIVER_OPS 2018-11-20 14:57:25 +01:00
drm_gem_framebuffer_helper.c drm/gem-fb-helper: Add drm_gem_fb_create_with_dirty() 2019-01-17 10:56:45 +01:00
drm_hashtab.c
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drm_internal.h drm-misc-next for 5.1: 2019-01-10 05:58:52 +10:00
drm_ioc32.c
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drm_ioctl.c drm/ioctl: Fix Spectre v1 vulnerabilities 2018-12-20 08:13:29 +01:00
drm_irq.c drm/irq: Ditch DRIVER_IRQ_SHARED 2019-01-29 15:45:21 +01:00
drm_kms_helper_common.c
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drm_lease.c Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
drm_legacy.h
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drm_lock.c
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drm_memory.c drm: change func to better detect wether swiotlb is needed 2019-02-20 13:29:29 +01:00
drm_mipi_dsi.c
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drm_mm.c drm: Trivial comment grammar cleanups 2019-02-04 10:21:17 +01:00
drm_mode_config.c drm-misc-next for 5.1: 2019-01-10 05:58:52 +10:00
drm_mode_object.c gpu/drm: Fix lock held when returning to user space. 2019-01-10 11:31:58 +01:00
drm_modes.c Linux 5.0-rc7 2019-02-18 13:27:15 +10:00
drm_modeset_helper.c drm: prepare for drmP.h removal from drm_modeset_helper.h 2019-02-07 21:48:28 +01:00
drm_modeset_lock.c drm/atomic: integrate modeset lock with private objects 2018-12-11 15:24:30 +01:00
drm_of.c drm/of: Fix kerneldoc 2019-01-12 13:07:58 +01:00
drm_panel.c drm/panel: Small documentation polish 2019-01-12 13:08:12 +01:00
drm_panel_orientation_quirks.c drm: panel-orientation-quirks: Do rotation quirk for new GPD Win2 FW 2018-11-15 10:55:30 +01:00
drm_pci.c cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
drm_plane.c drm: Auto-set allow_fb_modifiers when given modifiers at plane init 2019-01-11 16:53:55 +01:00
drm_plane_helper.c
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drm_prime.c drm: Add reservation_object to drm_gem_object 2019-02-19 11:08:40 +01:00
drm_print.c
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drm_probe_helper.c drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
drm_property.c drm: Trivial comment grammar cleanups 2019-02-04 10:21:17 +01:00
drm_rect.c drm: Nuke drm_calc_{h,v}scale_relaxed() 2019-02-07 13:14:06 +02:00
drm_scatter.c
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drm_scdc_helper.c
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drm_simple_kms_helper.c drm: Split out drm_probe_helper.h 2019-01-24 13:20:42 +01:00
drm_syncobj.c drm/syncobj: remove drm_syncobj_cb and cleanup 2018-12-11 17:38:38 +01:00
drm_sysfs.c drm/lease: Send a distinct uevent 2018-11-30 10:57:18 +01:00
drm_trace.h
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drm_trace_points.c
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drm_vblank.c drm: Trivial comment grammar cleanups 2019-02-04 10:21:17 +01:00
drm_vm.c drm/drm_vm: Mark expected switch fall-throughs 2019-02-19 12:20:41 +01:00
drm_vma_manager.c
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drm_writeback.c
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