Chris Wilson 6e11ea9de9 drm/amdgpu: Transfer fences to dmabuf importer ... amdgpu only uses shared-fences internally, but dmabuf importers rely on implicit write hazard tracking via the reservation_object.fence_excl. For example, the importer use the write hazard for timing a page flip to only occur after the exporter has finished flushing its write into the surface. As such, on exporting a dmabuf, we must either flush all outstanding fences (for we do not know which are writes and should have been exclusive) or alternatively create a new exclusive fence that is the composite of all the existing shared fences, and so will only be signaled when all earlier fences are signaled (ensuring that we can not be signaled before the completion of any earlier write). v2: reservation_object is already locked by amdgpu_bo_reserve() v3: Replace looping with get_fences_rcu and special case the promotion of a single shared fence directly to an exclusive fence, bypassing the fence array. v4: Drop the fence array ref after assigning to reservation_object Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107341 Testcase: igt/amd_prime/amd-to-i915 References: 8e94a46c17 ("drm/amdgpu: Attach exclusive fence to prime exported bo's. (v5)") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: "Christian König" <christian.koenig@amd.com> Reviewed-by: "Christian König" <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>		2019-01-30 12:52:44 -05:00
..
amd	drm/amdgpu: Transfer fences to dmabuf importer	2019-01-30 12:52:44 -05:00
arc	drm: replace "drm_dev_unref" function with "drm_dev_put"	2018-11-24 22:12:54 +01:00
arm
armada	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
ast	drm pull request for 4.21-rc1	2018-12-25 11:48:26 -08:00
atmel-hlcdc
bochs	Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next	2018-11-19 11:07:52 +10:00
bridge	drm/bridge: tc358767: use DP connector if no panel set	2019-01-09 10:49:31 +01:00
cirrus	drm-misc-next for v4.21, part 2:	2018-11-22 12:54:38 +10:00
etnaviv	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
exynos	drm/exynos: fimd: Make pixel blend mode configurable	2018-12-14 15:46:15 +09:00
fsl-dcu
gma500
hisilicon
i2c
i810
i915	Merge tag 'gvt-fixes-2019-01-24' of https://github.com/intel/gvt-linux into drm-intel-fixes	2019-01-24 10:41:34 +02:00
imx
lib
mediatek	drm/mediatek: Only try to attach bridge if there is one	2018-12-03 11:08:22 +08:00
meson	drm/meson: Fix atomic mode switching regression	2019-01-15 13:21:32 +01:00
mga
mgag200
msm	Merge tag 'drm-msm-fixes-2019-01-24' of git://people.freedesktop.org/~robclark/linux into drm-fixes	2019-01-25 07:45:00 +10:00
mxsfb	drm: replace "drm_dev_unref" function with "drm_dev_put"	2018-11-24 22:12:54 +01:00
nouveau	Merge branch 'linux-4.21' of git://github.com/skeggsb/linux into drm-fixes	2019-01-18 15:38:18 +10:00
omapdrm	drm/omap: fix incorrect union usage	2018-12-03 14:46:30 +02:00
panel	drm/panel: simple: Add AUO G101EVN010 panel support	2018-12-03 17:04:48 +01:00
pl111	drm/pl111: add of_node_put()	2018-11-28 09:31:07 -08:00
qxl	drm/qxl: drop prime import/export callbacks	2019-01-14 08:16:18 +01:00
r128
radeon	drm/radeon: check if device is root before getting pci speed caps	2019-01-29 10:57:02 -05:00
rcar-du	drm pull request for 4.21-rc1	2018-12-25 11:48:26 -08:00
rockchip	drm/rockchip: add missing of_node_put	2019-01-13 19:20:45 +01:00
savage
scheduler	drm/scheduler: Add drm_sched_suspend/resume_timeout()	2018-12-05 17:56:16 -05:00
selftests	drm/selftest: fix spelling mistake "dimention" -> "dimension"	2018-12-11 15:19:42 +01:00
shmobile	drm: replace "drm_dev_unref" function with "drm_dev_put"	2018-11-24 22:12:54 +01:00
sis
sti	drm/sti: remove set but not used variable 'priv'	2018-11-13 12:07:18 +01:00
stm
sun4i	drm/sun4i: hdmi: Fix usage of TMDS clock	2019-01-22 10:16:22 +01:00
tdfx
tegra	drm/tegra: sor: Reset the SOR if possible	2018-12-06 18:58:32 +01:00
tilcdc
tinydrm	drm/tinydrm: Use kmemdup rather than duplicating its implementation in repaper_spi_transfer()	2018-12-04 15:57:42 +01:00
ttm	drm/ttm: Use drm_debug_printer for all ttm_bo_mem_space_debug output	2018-12-21 15:27:58 -05:00
tve200	drm: replace "drm_dev_unref" function with "drm_dev_put"	2018-11-24 22:12:54 +01:00
udl
v3d	Final changes to drm-misc-next for v4.21:	2018-12-07 11:23:05 +10:00
vc4	drm: revert "expand replace_fence to support timeline point v2"	2018-12-05 11:01:11 +01:00
vgem
via
virtio	drm/virtio: drop prime import/export callbacks	2019-01-14 08:16:19 +01:00
vkms	drm/vkms: Remove set but not used variable 'vkms_obj'	2018-12-04 11:47:27 +01:00
vmwgfx	IOMMU Updates for Linux v4.21	2019-01-01 15:55:29 -08:00
xen	drm/xen-front: Use Xen common shared buffer implementation	2018-12-18 12:16:13 -05:00
zte
ati_pcigart.c
drm_agpsupport.c
drm_atomic.c	drm: Add a new plane property to send damage during plane update	2018-12-05 10:00:35 +01:00
drm_atomic_helper.c	Final changes to drm-misc-next for v4.21:	2018-12-07 11:23:05 +10:00
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	gpu/drm: Fix lock held when returning to user space.	2019-01-10 11:31:58 +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
drm_bridge.c
drm_bufs.c
drm_cache.c
drm_client.c	drm/gem: Add drm_gem_object_funcs	2018-11-20 14:56:18 +01:00
drm_color_mgmt.c	drm: Add DRM_MODESET_LOCK_BEGIN/END helpers	2018-11-29 10:48:31 -05:00
drm_connector.c	Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next	2018-12-06 13:29:09 +10:00
drm_context.c
drm_crtc.c	Final changes to drm-misc-next for v4.21:	2018-12-07 11:23:05 +10:00
drm_crtc_helper.c
drm_crtc_helper_internal.h
drm_crtc_internal.h
drm_damage_helper.c	drm: fix null pointer dereference on null state pointer	2018-12-24 11:52:43 +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
drm_dma.c
drm_dp_aux_dev.c
drm_dp_cec.c
drm_dp_dual_mode_helper.c
drm_dp_helper.c	drm/i915: Disable PSR in Apple panels	2019-01-10 15:09:35 +02:00
drm_dp_mst_topology.c	Revert "drm/dp_mst: Skip validating ports during destruction, just ref"	2018-11-28 16:22:17 -05:00
drm_drv.c	drm-misc-next for v4.21:	2018-11-29 10:28:49 +10:00
drm_dsc.c	drm/dsc: Add helpers for DSC picture parameter set infoframes	2018-11-27 18:35:17 -08:00
drm_dumb_buffers.c
drm_edid.c
drm_edid_load.c
drm_encoder.c
drm_encoder_slave.c
drm_fb_cma_helper.c	drm-misc-next for v4.21, part 1:	2018-11-19 10:40:33 +10:00
drm_fb_helper.c	drm/fb-helper: Ignore the value of fb_var_screeninfo.pixclock	2019-01-10 08:25:36 +01:00
drm_file.c	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
drm_flip_work.c
drm_fourcc.c	drm: Introduce new DRM_FORMAT_XYUV	2018-11-20 16:20:13 +02:00
drm_framebuffer.c
drm_gem.c	drm/gem: Add drm_gem_object_funcs	2018-11-20 14:56:18 +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_hashtab.c
drm_internal.h	drm pull request for 4.21-rc1	2018-12-25 11:48:26 -08:00
drm_ioc32.c
drm_ioctl.c	drm/ioctl: Fix Spectre v1 vulnerabilities	2018-12-20 08:13:29 +01:00
drm_irq.c
drm_kms_helper_common.c
drm_lease.c	drm pull request for 4.21-rc1	2018-12-25 11:48:26 -08:00
drm_legacy.h
drm_lock.c
drm_memory.c
drm_mipi_dsi.c
drm_mm.c
drm_mode_config.c	Merge tag 'vmwgfx-next-2018-12-05' of git://people.freedesktop.org/~thomash/linux into drm-next	2018-12-06 13:43:56 +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
drm_modeset_helper.c
drm_modeset_lock.c	drm: Add DRM_MODESET_LOCK_BEGIN/END helpers	2018-11-29 10:48:31 -05:00
drm_of.c
drm_panel.c
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: Add DRM_MODESET_LOCK_BEGIN/END helpers	2018-11-29 10:48:31 -05:00
drm_plane_helper.c
drm_prime.c	drm/prime: Fix drm_gem_prime_mmap() stack use	2018-11-22 15:44:05 +01:00
drm_print.c
drm_probe_helper.c
drm_property.c
drm_rect.c
drm_scatter.c
drm_scdc_helper.c
drm_simple_kms_helper.c
drm_syncobj.c	drm: revert "expand replace_fence to support timeline point v2"	2018-12-05 11:01:11 +01:00
drm_sysfs.c	drm/lease: Send a distinct uevent	2018-11-30 10:57:18 +01:00
drm_trace.h
drm_trace_points.c
drm_vblank.c
drm_vm.c
drm_vma_manager.c
drm_writeback.c
Kconfig
Makefile	Merge tag 'vmwgfx-next-2018-12-05' of git://people.freedesktop.org/~thomash/linux into drm-next	2018-12-06 13:43:56 +10:00