Andrey Grodzovsky 45ecaea738 drm/sched: Partial revert of 'drm/sched: Keep s_fence->parent pointer' ... Problem: This patch caused negative refcount as described in [1] because for that case parent fence did not signal by the time of drm_sched_stop and hence kept in pending list the assumption was they will not signal and so fence was put to account for the s_fence->parent refcount but for amdgpu which has embedded HW fence (always same parent fence) drm_sched_fence_release_scheduled was always called and would still drop the count for parent fence once more. For jobs that never signaled this imbalance was masked by refcount bug in amdgpu_fence_driver_clear_job_fences that would not drop refcount on the fences that were removed from fence drive fences array (against prevois insertion into the array in get in amdgpu_fence_emit). Fix: Revert this patch and by setting s_job->s_fence->parent to NULL as before prevent the extra refcount drop in amdgpu when drm_sched_fence_release_scheduled is called on job release. Also - align behaviour in drm_sched_resubmit_jobs_ext with that of drm_sched_main when submitting jobs - take a refcount for the new parent fence pointer and drop refcount for original kref_init for new HW fence creation (or fake new HW fence in amdgpu - see next patch). [1] - https://lore.kernel.org/all/731b7ff1-3cc9-e314-df2a-7c51b76d4db0@amd.com/t/#r00c728fcc069b1276642c325bfa9d82bf8fa21a3 Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Tested-by: Yiqing Yao <yiqing.yao@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2022-06-28 11:24:31 -04:00
..
amd	drm/amdgpu: Prevent race between late signaled fences and GPU reset.	2022-06-28 11:24:24 -04:00
arm	Merge tag 'drm-msm-next-2022-05-09' of https://gitlab.freedesktop.org/drm/msm into drm-next	2022-05-11 12:40:47 +10:00
armada	Driver core changes for 5.18-rc1	2022-03-28 12:41:28 -07:00
aspeed
ast	drm: simplify the return expression of ast_drm_resume()	2022-05-05 09:18:54 +02:00
atmel-hlcdc
bridge	drm/bridge: tc358767: Fix DP bridge mode detection from DT endpoints	2022-05-05 01:03:50 +02:00
display	drm/display: Select DP helper for DRM_DP_AUX_CHARDEV and DRM_DP_CEC	2022-04-29 10:11:08 +02:00
etnaviv	Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next	2022-05-17 12:20:04 +10:00
exynos	drm: exynos: dsi: Use child panel or bridge find helpers	2022-05-04 17:07:14 +02:00
fsl-dcu
gma500	drm: Rename dp/ to display/	2022-04-25 11:17:45 +02:00
gud
hisilicon	Driver core changes for 5.18-rc1	2022-03-28 12:41:28 -07:00
hyperv
i2c
i810
i915	drm/i915/dsi: fix VBT send packet port selection for ICL+	2022-05-23 12:08:58 +03:00
imx	drm/imx: various cleanups	2022-05-06 15:07:39 +10:00
ingenic	drm/ingenic: Add dw-hdmi driver specialization for jz4780	2022-04-11 16:04:39 +01:00
kmb
lib
lima	dma-buf: specify usage while adding fences to dma_resv obj v7	2022-04-07 12:53:53 +02:00
mcde	Revert "drm: bridge: mcde_dsi: Switch to devm_drm_of_get_bridge"	2022-05-04 17:06:31 +02:00
mediatek	Mediatek DRM Next for Linux 5.19	2022-05-06 17:26:01 +10:00
meson	Merge drm/drm-next into drm-misc-next	2022-04-05 11:06:58 +02:00
mga
mgag200	drm/mgag200: Protect concurrent access to I/O registers with lock	2022-05-05 09:18:54 +02:00
msm	5.19 fixes for msm-next	2022-05-20 16:35:52 +10:00
mxsfb	drm: mxsfb: Implement LCDIF scanout CRC32 support	2022-05-05 01:03:49 +02:00
nouveau	drm/nouveau: remove trace_dma_fence_emit	2022-05-04 15:15:56 -04:00
omapdrm	Merge drm/drm-next into drm-misc-next	2022-04-05 11:06:58 +02:00
panel	Merge drm/drm-next into drm-misc-next	2022-05-03 11:53:42 +02:00
panfrost	dma-buf: specify usage while adding fences to dma_resv obj v7	2022-04-07 12:53:53 +02:00
pl111
qxl	drm/qxl: add drm_gem_plane_helper_prepare_fb	2022-05-05 12:30:10 +02:00
r128
radeon	gpu/drm/radeon: Fix typo in comments	2022-06-23 17:21:49 -04:00
rcar-du	drm: allow passing possible_crtcs to drm_writeback_connector_init()	2022-05-02 02:12:59 +03:00
rockchip	drm/rockchip: Change register space names in vop2	2022-05-17 00:16:33 +02:00
savage
scheduler	drm/sched: Partial revert of 'drm/sched: Keep s_fence->parent pointer'	2022-06-28 11:24:31 -04:00
selftests	drm: Rename dp/ to display/	2022-04-25 11:17:45 +02:00
shmobile
sis
solomon	drm/ssd130x: Make ssd130x_remove() return void	2022-04-26 09:43:37 +02:00
sprd	Driver core changes for 5.18-rc1	2022-03-28 12:41:28 -07:00
sti	drm/sti: fix typos in comments	2022-04-07 11:31:52 +02:00
stm	stm: ltdc: fix two incorrect NULL checks on list iterator	2022-04-07 10:26:59 +02:00
sun4i	Merge drm/drm-next into drm-misc-next	2022-05-03 11:53:42 +02:00
tdfx
tegra	drm/tegra: Changes for v5.19-rc1	2022-05-13 13:14:34 +10:00
tidss	drm/tidss: Soft Reset DISPC on startup	2022-04-19 15:09:45 +03:00
tilcdc	drm/tilcdc: fix typos in comment	2022-04-25 10:18:52 +03:00
tiny	drm/simpledrm: Use fbdev defaults for shadow buffering	2022-05-03 16:04:22 +02:00
ttm	drm/ttm: use kvcalloc() instead of kvmalloc_array() in ttm_tt v2	2022-04-21 14:47:30 +02:00
tve200
udl
v3d	drm/v3d: Fix null pointer dereference of pointer perfmon	2022-04-26 11:55:28 -01:00
vboxvideo
vc4	Merge tag 'drm-msm-next-2022-05-09' of https://gitlab.freedesktop.org/drm/msm into drm-next	2022-05-11 12:40:47 +10:00
vgem	dma-buf: specify usage while adding fences to dma_resv obj v7	2022-04-07 12:53:53 +02:00
via
virtio	dma-buf: specify usage while adding fences to dma_resv obj v7	2022-04-07 12:53:53 +02:00
vkms	drm: allow passing possible_crtcs to drm_writeback_connector_init()	2022-05-02 02:12:59 +03:00
vmwgfx	fbdev: Use pageref offset for deferred-I/O writeback	2022-05-03 16:04:22 +02:00
xen	xen: branch for v5.18-rc1	2022-03-28 14:32:39 -07:00
xlnx	drm/display: Introduce a DRM display-helper module	2022-04-25 11:19:21 +02:00
drm_agpsupport.c
drm_aperture.c
drm_atomic.c	drm/atomic: Add atomic_print_state to private objects	2022-03-31 10:19:45 +02:00
drm_atomic_helper.c
drm_atomic_state_helper.c
drm_atomic_uapi.c	drm: handle kernel fences in drm_gem_plane_helper_prepare_fb v2	2022-05-02 09:01:51 +02:00
drm_auth.c
drm_blend.c
drm_bridge.c
drm_bridge_connector.c
drm_buddy.c	drm: add a check to verify the size alignment	2022-04-11 15:35:47 +02:00
drm_bufs.c
drm_cache.c
drm_client.c
drm_client_modeset.c
drm_color_mgmt.c	drm: fix typo in comment	2022-05-04 14:09:34 +02:00
drm_connector.c	drm/display: Move HDMI helpers into display-helper module	2022-04-25 11:19:36 +02:00
drm_context.c
drm_crtc.c
drm_crtc_helper.c	drm: Use drm_mode_copy()	2022-04-12 09:27:20 +03:00
drm_crtc_helper_internal.h
drm_crtc_internal.h
drm_damage_helper.c
drm_debugfs.c
drm_debugfs_crc.c
drm_displayid.c
drm_dma.c
drm_drv.c
drm_dumb_buffers.c
drm_edid.c	drm/edid: drop kernel-doc for static functions	2022-04-29 14:04:55 +03:00
drm_edid_load.c
drm_encoder.c
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c	fbdev: Rename pagelist to pagereflist for deferred I/O	2022-05-03 16:04:22 +02:00
drm_file.c
drm_flip_work.c
drm_format_helper.c	drm/format-helper: Share implementation among conversion helpers	2022-05-05 08:54:09 +02:00
drm_fourcc.c
drm_framebuffer.c
drm_gem.c	dma-buf: add enum dma_resv_usage v4	2022-04-07 12:53:53 +02:00
drm_gem_atomic_helper.c	drm: handle kernel fences in drm_gem_plane_helper_prepare_fb v2	2022-05-02 09:01:51 +02:00
drm_gem_cma_helper.c
drm_gem_framebuffer_helper.c
drm_gem_shmem_helper.c
drm_gem_ttm_helper.c
drm_gem_vram_helper.c	Merge drm/drm-next into drm-misc-next	2022-04-05 11:06:58 +02:00
drm_hashtab.c
drm_internal.h
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: Add DRM-managed mutex_init()	2022-05-05 09:04:10 +02:00
drm_memory.c
drm_mipi_dbi.c
drm_mipi_dsi.c	drm/display: Move DSC header and helpers into display-helper module	2022-04-25 11:19:36 +02:00
drm_mm.c
drm_mode_config.c
drm_mode_object.c
drm_modes.c	drm/modes: Make width-mm/height-mm check in of_get_drm_panel_display_mode() mandatory	2022-04-24 23:54:05 +02:00
drm_modeset_helper.c
drm_modeset_lock.c
drm_nomodeset.c
drm_of.c	Revert "drm: of: Lookup if child node has panel or bridge"	2022-04-21 09:18:08 +02:00
drm_panel.c
drm_panel_orientation_quirks.c
drm_pci.c
drm_plane.c	drm/plane: Move range check for format_count earlier	2022-04-28 16:13:04 +01:00
drm_plane_helper.c
drm_prime.c
drm_print.c
drm_privacy_screen.c
drm_privacy_screen_x86.c
drm_probe_helper.c
drm_property.c
drm_rect.c
drm_scatter.c
drm_self_refresh_helper.c
drm_simple_kms_helper.c
drm_syncobj.c
drm_sysfs.c
drm_trace.h
drm_trace_points.c
drm_vblank.c	drm: Use drm_mode_copy()	2022-04-12 09:27:20 +03:00
drm_vblank_work.c
drm_vm.c
drm_vma_manager.c
drm_writeback.c	drm: introduce drm_writeback_connector_init_with_encoder() API	2022-05-02 02:12:59 +03:00
Kconfig	drm/display: Move HDMI helpers into display-helper module	2022-04-25 11:19:36 +02:00
Makefile	drm/display: Move SCDC helpers into display-helper library	2022-04-25 11:19:37 +02:00