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mirror-linux/drivers/gpu/drm
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Erik Kurzinger 3bbf06efb8 drm/syncobj: fix DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE 
[ Upstream commit 101c9f637e ]

If DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT is invoked with the
DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE flag set but no fence has yet been
submitted for the given timeline point the call will fail immediately
with EINVAL. This does not match the intended behavior where the call
should wait until the fence has been submitted (or the timeout expires).

The following small example program illustrates the issue. It should
wait for 5 seconds and then print ETIME, but instead it terminates right
away after printing EINVAL.

  #include <stdio.h>
  #include <fcntl.h>
  #include <time.h>
  #include <errno.h>
  #include <xf86drm.h>
  int main(void)
  {
      int fd = open("/dev/dri/card0", O_RDWR);
      uint32_t syncobj;
      drmSyncobjCreate(fd, 0, &syncobj);
      struct timespec ts;
      clock_gettime(CLOCK_MONOTONIC, &ts);
      uint64_t point = 1;
      if (drmSyncobjTimelineWait(fd, &syncobj, &point, 1,
                                 ts.tv_sec * 1000000000 + ts.tv_nsec + 5000000000, // 5s
                                 DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE, NULL)) {
          printf("drmSyncobjTimelineWait failed %d\n", errno);
      }
  }

Fixes: 01d6c35783 ("drm/syncobj: add support for timeline point wait v8")
Signed-off-by: Erik Kurzinger <ekurzinger@nvidia.com>
Reviewed by: Simon Ser <contact@emersion.fd>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patchwork.freedesktop.org/patch/msgid/1fac96f1-2f3f-f9f9-4eb0-340f27a8f6c0@nvidia.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-11-20 11:52:17 +01:00
..
amd drm/amd/display: Bail from dm_check_crtc_cursor if no relevant change 2023-11-20 11:52:00 +01:00
arm drm/aperture: Remove primary argument 2023-08-30 16:10:57 +02:00
armada drm/armada: Fix off-by-one error in armada_overlay_get_property() 2023-09-13 09:42:42 +02:00
aspeed
…
ast drm/ast: Fix DRAM init on AST2200 2023-09-19 12:27:56 +02:00
atmel-hlcdc
…
bridge drm/bridge: lt9611uxc: fix the race in the error path 2023-11-20 11:52:00 +01:00
display drm/dp_mst: Fix NULL deref in get_mst_branch_device_by_guid_helper() 2023-11-02 09:35:25 +01:00
etnaviv drm/etnaviv: fix dumping of active MMU context 2023-09-13 09:42:39 +02:00
exynos drm/exynos: fix a possible null-pointer dereference due to data race in exynos_drm_crtc_atomic_disable() 2023-09-23 11:11:04 +02:00
fsl-dcu drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid() 2022-12-31 13:33:06 +01:00
gma500 drm/aperture: Remove primary argument 2023-08-30 16:10:57 +02:00
gud drm/gud: Fix UBSAN warning 2023-03-10 09:34:33 +01:00
hisilicon
…
hyperv drm/hyperv: Fix a compilation issue because of not including screen_info.h 2023-09-13 09:42:36 +02:00
i2c
…
i810
…
i915 drm/i915/pmu: Check if pmu is closed before stopping event 2023-11-02 09:35:25 +01:00
imx drm/imx/ipuv3: Fix front porch adjustment upon hactive aligning 2023-08-11 12:08:25 +02:00
ingenic drm/ingenic: Fix missing platform_driver_unregister() call in ingenic_drm_init() 2023-01-07 11:11:57 +01:00
kmb
…
lib
…
lima drm/lima/lima_drv: Add missing unwind goto in lima_pdev_probe() 2023-05-11 23:03:12 +09:00
logicvc drm/logicvc: Kconfig: select REGMAP and REGMAP_MMIO 2023-11-02 09:35:28 +01:00
mcde
…
mediatek drm: mediatek: mtk_dsi: Fix NO_EOT_PACKET settings/handling 2023-11-20 11:52:01 +01:00
meson drm/meson: fix memory leak on ->hpd_notify callback 2023-10-06 14:57:06 +02:00
mga
…
mgag200 drm/mgag200: Fix gamma lut not initialized. 2023-05-30 14:03:19 +01:00
msm drm/msm/dsi: free TX buffer in unbind 2023-11-20 11:52:01 +01:00
mxsfb drm/mxsfb: Disable overlay plane in mxsfb_plane_overlay_atomic_disable() 2023-09-19 12:28:06 +02:00
nouveau drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create 2023-08-23 17:52:42 +02:00
omapdrm drm/omap: dsi: Fix excessive stack usage 2023-03-10 09:33:55 +01:00
panel drm/panel: simple: Add missing connector type and pixel format for AUO T215HVN01 2023-09-13 09:42:42 +02:00
panfrost drm/panfrost: Fix the panfrost_mmu_map_fault_addr() error path 2023-04-13 16:55:35 +02:00
pl111
…
qxl drm/qxl: fix UAF on handle creation 2023-08-23 17:52:39 +02:00
r128
…
radeon drm/radeon: possible buffer overflow 2023-11-20 11:51:58 +01:00
rcar-du drm: rcar-du: remove R-Car H3 ES1.* workarounds 2023-08-23 17:52:20 +02:00
rockchip drm/rockchip: Fix type promotion bug in rockchip_gem_iommu_map() 2023-11-20 11:52:00 +01:00
savage
…
scheduler dma-buf: add dma_fence_timestamp helper 2023-10-19 23:08:57 +02:00
shmobile
…
sis
…
solomon drm/ssd130x: Init display before the SSD130X_DISPLAY_ON command 2023-02-09 11:28:02 +01:00
sprd
…
sti drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid() 2022-12-31 13:33:06 +01:00
stm drm/aperture: Remove primary argument 2023-08-30 16:10:57 +02:00
sun4i drm/aperture: Remove primary argument 2023-08-30 16:10:57 +02:00
tdfx
…
tegra drm/tegra: dpaux: Fix incorrect return value of platform_get_irq 2023-09-13 09:42:41 +02:00
tests drm/tests: Fix incorrect argument in drm_test_mm_insert_range 2023-10-06 14:57:03 +02:00
tidss drm: tidss: Fix pixel format definition 2023-03-10 09:33:09 +01:00
tilcdc
…
tiny drm: gm12u320: Fix the timeout usage for usb_bulk_msg() 2023-09-23 11:11:08 +02:00
ttm drm/ttm: Reorder sys manager cleanup step 2023-11-08 14:11:00 +01:00
tve200
…
udl
…
v3d
…
vboxvideo
…
vc4 drm/aperture: Remove primary argument 2023-08-30 16:10:57 +02:00
vgem drm/vgem: add missing mutex_destroy 2023-05-11 23:03:07 +09:00
via
…
virtio drm/virtio: Conditionally allocate virtio_gpu_fence 2023-09-19 12:27:55 +02:00
vkms drm/vkms: Fix RGB565 pixel conversion 2023-07-19 16:21:18 +02:00
vmwgfx drm/vmwgfx: fix typo of sizeof argument 2023-10-19 23:08:53 +02:00
xen
…
xlnx drm: xlnx: zynqmp_dpsub: Add missing check for dma_set_mask 2023-09-13 09:42:42 +02:00
Kconfig drm: Disable dynamic debug as broken 2023-02-22 12:59:46 +01:00
Makefile
…
drm_agpsupport.c
…
drm_aperture.c drm/aperture: Remove primary argument 2023-08-30 16:10:57 +02:00
drm_atomic.c drm/atomic: Fix potential use-after-free in nonblocking commits 2023-07-23 13:49:50 +02:00
drm_atomic_helper.c drm/atomic-helper: relax unregistered connector check 2023-10-19 23:08:55 +02:00
drm_atomic_state_helper.c
…
drm_atomic_uapi.c
…
drm_auth.c
…
drm_blend.c
…
drm_bridge.c drm/bridge: Introduce pre_enable_prev_first to alter bridge init order 2023-07-19 16:21:23 +02:00
drm_bridge_connector.c
…
drm_buddy.c drm: buddy_allocator: Fix buddy allocator init on 32-bit systems 2023-04-26 14:28:36 +02:00
drm_bufs.c
…
drm_cache.c
…
drm_client.c drm/client: Send hotplug event after registering a client 2023-07-23 13:49:28 +02:00
drm_client_modeset.c drm/client: Fix memory leak in drm_client_modeset_probe 2023-07-27 08:50:28 +02:00
drm_color_mgmt.c
…
drm_connector.c drm/connector: send hotplug uevent on connector cleanup 2023-01-07 11:11:56 +01:00
drm_context.c
…
drm_crtc.c
…
drm_crtc_helper.c
…
drm_crtc_helper_internal.h
…
drm_crtc_internal.h
…
drm_damage_helper.c
…
drm_debugfs.c
…
drm_debugfs_crc.c
…
drm_displayid.c drm/displayid: add displayid_get_header() and check bounds better 2023-05-24 17:32:34 +01:00
drm_dma.c
…
drm_drv.c drm/drv: Fix potential memory leak in drm_dev_init() 2022-11-10 18:49:01 -05:00
drm_dumb_buffers.c
…
drm_edid.c drm/edid: Add quirk for OSVR HDK 2.0 2023-09-23 11:11:03 +02:00
drm_edid_load.c
…
drm_encoder.c
…
drm_encoder_slave.c
…
drm_fb_dma_helper.c
…
drm_fb_helper.c drm/client: Send hotplug event after registering a client 2023-07-23 13:49:28 +02:00
drm_file.c
…
drm_flip_work.c
…
drm_format_helper.c
…
drm_fourcc.c drm/fourcc: Add missing big-endian XRGB1555 and RGB565 formats 2023-03-10 09:33:08 +01:00
drm_framebuffer.c
…
drm_gem.c drm/msm/gem: Prevent blocking within shrinker loop 2023-03-22 13:33:39 +01:00
drm_gem_atomic_helper.c
…
drm_gem_dma_helper.c
…
drm_gem_framebuffer_helper.c
…
drm_gem_shmem_helper.c drm/shmem-helper: Reset vma->vm_ops before calling dma_buf_mmap() 2023-08-16 18:27:22 +02:00
drm_gem_ttm_helper.c
…
drm_gem_vram_helper.c drm/vram-helper: fix function names in vram helper doc 2023-07-19 16:21:16 +02:00
drm_hashtab.c
…
drm_internal.h drm: Fix potential null-ptr-deref in drm_vblank_destroy_worker() 2022-11-10 18:49:02 -05:00
drm_ioc32.c
…
drm_ioctl.c
…
drm_irq.c
…
drm_kms_helper_common.c
…
drm_lease.c
…
drm_legacy.h
…
drm_legacy_misc.c
…
drm_lock.c
…
drm_managed.c drm: fix drmm_mutex_init() 2023-05-30 14:03:20 +01:00
drm_memory.c
…
drm_mipi_dbi.c
…
drm_mipi_dsi.c drm/mipi-dsi: Set the fwnode for mipi_dsi_device 2023-05-24 17:32:31 +01:00
drm_mm.c
…
drm_mode_config.c drm: Fix potential null-ptr-deref due to drmm_mode_config_init() 2023-03-10 09:33:08 +01:00
drm_mode_object.c
…
drm_modes.c
…
drm_modeset_helper.c
…
drm_modeset_lock.c
…
drm_nomodeset.c
…
drm_of.c
…
drm_panel.c
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drm_panel_orientation_quirks.c drm: panel-orientation-quirks: Add quirk for One Mix 2S 2023-10-25 12:03:11 +02:00
drm_pci.c
…
drm_plane.c
…
drm_plane_helper.c
…
drm_prime.c
…
drm_print.c
…
drm_privacy_screen.c
…
drm_privacy_screen_x86.c
…
drm_probe_helper.c drm/probe-helper: Cancel previous job before starting new one 2023-05-11 23:03:07 +09:00
drm_property.c
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drm_rect.c
…
drm_scatter.c
…
drm_self_refresh_helper.c
…
drm_simple_kms_helper.c
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drm_syncobj.c drm/syncobj: fix DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE 2023-11-20 11:52:17 +01:00
drm_sysfs.c
…
drm_trace.h
…
drm_trace_points.c
…
drm_vblank.c
…
drm_vblank_work.c
…
drm_vm.c
…
drm_vma_manager.c drm/drm_vma_manager: Add drm_vma_node_allow_once() 2023-02-01 08:34:42 +01:00
drm_writeback.c
…