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linux/drivers/gpu/drm
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Chris Wilson e6154e4cb8 drm/i915: Skip the ERR_PTR error state 
Although commit fb6f0b64e455 ("drm/i915: Prevent machine hang from
Broxton's vtd w/a and error capture") applied cleanly after a 24 month
hiatus, the code had moved on with new methods for peeking and fetching
the captured gpu info. Make sure we catch all uses of the stashed error
state and avoid dereferencing the error pointer.

v2: Move error pointer determination into i915_gpu_capture_state
v3: Restore early check to avoid capturing and then throwing away
subsequent GPU error states.

Fixes: fb6f0b64e455 ("drm/i915: Prevent machine hang from Broxton's vtd w/a and error capture")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181207110554.19897-1-chris@chris-wilson.co.uk
2018-12-07 13:40:10 +00:00
..
amd
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +10:00
arc
drm/arc: Use drm_fbdev_generic_setup()
2018-11-01 15:23:21 +01:00
arm
drm: mali-dp: Enable Mali-DP tiled buffer formats
2018-11-02 09:57:27 +00:00
armada
drm: extract drm_atomic_uapi.c
2018-09-09 14:19:18 +02:00
ast
drm/ttm: initialize globals during device init (v2)
2018-11-05 14:21:21 -05:00
atmel-hlcdc
drm/atmel-hlcdc: Use drm_fbdev_generic_setup()
2018-11-01 15:24:22 +01:00
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-misc-next for v4.21, part 1:
2018-11-19 10:40:33 +10:00
cirrus
drm/ttm: initialize globals during device init (v2)
2018-11-05 14:21:21 -05:00
etnaviv
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +10:00
exynos
drm/exynos/fbdev: do not skip fbdev init if there are no connectors
2018-11-05 16:37:24 +09:00
fsl-dcu
drm/fsl-dcu: Use drm_fbdev_generic_setup()
2018-11-01 15:23:58 +01:00
gma500
Merge drm/drm-next into drm-misc-next
2018-08-27 10:00:03 -04:00
hisilicon
drm/ttm: initialize globals during device init (v2)
2018-11-05 14:21:21 -05:00
i2c
Merge branch 'drm-tda9950-fixes' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-fixes
2018-10-04 10:32:14 +10:00
i810
drm/i810: off by one in i810_dma_vertex()
2018-07-03 15:00:42 +02:00
i915
drm/i915: Skip the ERR_PTR error state
2018-12-07 13:40:10 +00:00
imx
drm/imx: fix build failure without CONFIG_DRM_FBDEV_EMULATION
2018-10-05 12:09:20 +02:00
lib
…
mediatek
drm pull for 4.20-rc1
2018-10-28 17:49:53 -07:00
meson
drm-misc-next for v4.21, part 1:
2018-11-19 10:40:33 +10:00
mga
…
mgag200
drm/ttm: initialize globals during device init (v2)
2018-11-05 14:21:21 -05:00
msm
drm-misc-next for v4.21, part 1:
2018-11-19 10:40:33 +10:00
mxsfb
drm/mxsfb: Switch to drm_atomic_helper_commit_tail_rpm
2018-09-26 22:07:40 +02:00
nouveau
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +10:00
omapdrm
drm/omap: dsi: Fix missing of_platform_depopulate()
2018-11-12 11:50:13 +02:00
panel
drm-misc-next for v4.21, part 1:
2018-11-19 10:40:33 +10:00
pl111
Merge drm/drm-next into drm-misc-next
2018-09-27 02:54:54 -04:00
qxl
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +10:00
r128
…
radeon
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +10:00
rcar-du
drm/rcar-du: Convert drm_atomic_helper_suspend/resume()
2018-10-23 15:59:01 +02:00
rockchip
drm/rockchip: dsi: add dual mipi support
2018-10-30 14:06:31 +01:00
savage
drm/savage: off by one in savage_bci_cmdbuf()
2018-07-04 14:27:01 +02:00
scheduler
drm/scheduler: Add drm_sched_job_cleanup
2018-11-05 14:21:27 -05:00
selftests
drm/selftests: Fix build warning -Wframe-larger-than
2018-11-02 14:25:32 +01:00
shmobile
drm: shmobile: convert to SPDX identifiers
2018-09-14 13:54:02 +03:00
sis
…
sti
drm: sti: don't pass GFP_DMA32 to dma_alloc_wc
2018-10-18 13:50:22 +02:00
stm
drm/stm: Use drm_fbdev_generic_setup()
2018-10-25 17:00:28 +02:00
sun4i
drm-misc-next for v4.21, part 1:
2018-11-19 10:40:33 +10:00
tdfx
…
tegra
drm/tegra: Changes for v4.20-rc1
2018-09-28 09:47:31 +10:00
tilcdc
drm/tilcdc: Use drm_fbdev_generic_setup()
2018-11-01 15:25:41 +01:00
tinydrm
drm/tinydrm: Fix setting of the column/page end addresses.
2018-10-30 16:23:38 -07:00
ttm
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +10:00
tve200
drm/tve200: Use drm_fbdev_generic_setup()
2018-09-25 11:34:24 +02:00
udl
DRM: UDL: get rid of useless vblank initialization
2018-10-23 15:59:01 +02:00
v3d
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +10:00
vc4
dma-buf: allow reserving more than one shared fence slot
2018-10-25 13:45:07 +02:00
vgem
drm/vgem: Fix typo in driver feature flags
2018-11-05 15:31:51 +00:00
via
…
virtio
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +10:00
vkms
drm/vkms: provide a parent device to drm_dev_init()
2018-10-29 11:13:40 +00:00
vmwgfx
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +10:00
xen
drm: Replace NULL with error value in drm_prime_pages_to_sg
2018-07-23 11:47:35 +03:00
zte
drm/zte: Use drm_atomic_helper_shutdown
2018-10-05 18:04:10 +02:00
ati_pcigart.c
…
drm_agpsupport.c
…
drm_atomic_helper.c
Merge drm/drm-next into drm-intel-next-queued
2018-11-20 13:14:08 +02:00
drm_atomic_state_helper.c
drm: Extract drm_atomic_state_helper.[hc]
2018-10-05 18:04:09 +02:00
drm_atomic_uapi.c
drm: Add connector property to limit max bpc
2018-11-02 09:15:58 -07:00
drm_atomic.c
Merge drm/drm-next into drm-intel-next-queued
2018-11-20 13:14:08 +02:00
drm_auth.c
…
drm_blend.c
drm: Clarify DRM_MODE_REFLECT_X/Y documentation
2018-09-11 11:21:30 +01:00
drm_bridge.c
drm: bridge: document bridge attach/detach imbalance
2018-09-13 11:28:12 +02:00
drm_bufs.c
drm/bufs: Fix Spectre v1 vulnerability
2018-10-17 09:17:33 +02:00
drm_cache.c
…
drm_client.c
drm pull for 4.20-rc1
2018-10-28 17:49:53 -07:00
drm_color_mgmt.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
drm_connector.c
Merge drm/drm-next into drm-intel-next-queued
2018-11-20 13:14:08 +02:00
drm_context.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
drm_crtc_helper_internal.h
…
drm_crtc_helper.c
drm: Remove transitional helpers
2018-10-05 18:04:10 +02:00
drm_crtc_internal.h
drm: refuse ADDFB2 ioctl for broken bigendian drivers
2018-09-10 07:10:36 +02:00
drm_crtc.c
drm pull for 4.20-rc1
2018-10-28 17:49:53 -07:00
drm_debugfs_crc.c
Revert "drm: crc: Wait for a frame before returning from open()"
2018-08-22 09:50:16 -07:00
drm_debugfs.c
drm/atomic: Use drm_drv_uses_atomic_modeset() for debugfs creation
2018-09-17 19:24:37 -04:00
drm_dma.c
…
drm_dp_aux_dev.c
…
drm_dp_cec.c
drm: Do not call drm_dp_cec_set_edid() while registering DP connectors
2018-10-11 10:52:35 +02:00
drm_dp_dual_mode_helper.c
…
drm_dp_helper.c
drm/i915: Disable PSR in Apple panels
2018-12-04 12:12:28 -08:00
drm_dp_mst_topology.c
drm-misc-next for v4.21, part 1:
2018-11-19 10:40:33 +10:00
drm_drv.c
Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm-next
2018-11-19 11:07:52 +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-misc-next for 4.19:
2018-06-28 13:29:07 +10:00
drm_edid_load.c
…
drm_edid.c
drm, i915, amdgpu, bridge + core quirk
2018-11-02 10:58:20 -07:00
drm_encoder_slave.c
…
drm_encoder.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
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-misc-next for v4.21, part 1:
2018-11-19 10:40:33 +10:00
drm_file.c
drm: Begin an API for in-kernel clients
2018-07-10 14:51:37 +02:00
drm_flip_work.c
…
drm_fourcc.c
drm: Fix htmldocs warnings in drm_fourcc.c
2018-11-07 16:16:27 -05:00
drm_framebuffer.c
drm: Add macro to export functions only when CONFIG_DRM_DEBUG_SELFTEST is enabled
2018-11-02 09:58:10 +00:00
drm_gem_cma_helper.c
drm: Replace NULL with error value in drm_prime_pages_to_sg
2018-07-23 11:47:35 +03:00
drm_gem_framebuffer_helper.c
drm/fourcc: Add char_per_block, block_w and block_h in drm_format_info
2018-11-02 09:55:27 +00:00
drm_gem.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
drm_hashtab.c
…
drm_info.c
…
drm_internal.h
drm: Drop drmP.h from drm_connector.c
2018-09-09 14:19:17 +02:00
drm_ioc32.c
…
drm_ioctl.c
drm: Return -EOPNOTSUPP in drm_setclientcap() when driver do not support KMS
2018-09-21 11:19:40 +02:00
drm_irq.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
drm_kms_helper_common.c
…
drm_lease.c
drm-misc-next for v4.21, part 1:
2018-11-19 10:40:33 +10:00
drm_legacy.h
…
drm_lock.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
drm_memory.c
drm: Shift * to be adjacent to pointer name
2018-10-16 14:39:25 +02:00
drm_mipi_dsi.c
drm: Add support for pps and compression mode command packet
2018-07-25 07:51:05 -04:00
drm_mm.c
…
drm_mode_config.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
drm_mode_object.c
drm: Remove 80-column line in drm_mode_object.c
2018-11-01 18:54:05 +01:00
drm_modes.c
drm: Convert to using %pOFn instead of device_node.name
2018-10-01 10:16:39 +02:00
drm_modeset_helper.c
drm: Unexport primary plane helpers
2018-10-05 18:06:49 +02:00
drm_modeset_lock.c
drm: Change deadlock-avoidance algorithm for the modeset locks.
2018-07-03 09:46:05 +02:00
drm_of.c
drm/doc: Include drm_of.c helpers
2018-07-13 18:40:28 +02:00
drm_panel_orientation_quirks.c
Merge drm/drm-next into drm-misc-next
2018-10-24 14:26:04 -04:00
drm_panel.c
This is the 4.19-rc6 release
2018-10-04 11:03:34 +10:00
drm_pci.c
drm/drm_pci.c: Use dma_zalloc_coherent
2018-10-23 15:59:01 +02:00
drm_plane_helper.c
drm: Unexport drm_plane_helper_check_update
2018-10-05 22:45:19 +02:00
drm_plane.c
drm: Add drm_any_plane_has_format()
2018-11-06 21:34:22 +02:00
drm_prime.c
drm: Remove defunct dma_buf_kmap stubs
2018-10-05 16:45:40 +01:00
drm_print.c
drm: Add puts callback for the coredump printer
2018-07-30 08:49:41 -04:00
drm_probe_helper.c
drm: drop _mode_ from remaining connector functions
2018-07-13 18:40:27 +02:00
drm_property.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
drm_rect.c
…
drm_scatter.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
drm_scdc_helper.c
…
drm_simple_kms_helper.c
drm/tinydrm: Advertise that we can do only DRM_FORMAT_MOD_LINEAR.
2018-10-30 13:01:50 -07:00
drm_syncobj.c
drm/syncobj: Fix oops on drm_syncobj_find_fence(file_priv, 0, ...).
2018-11-06 12:53:02 +01:00
drm_sysfs.c
…
drm_trace_points.c
…
drm_trace.h
…
drm_vblank.c
drm: Differentiate the lack of an interface from invalid parameter
2018-09-14 17:29:47 +01:00
drm_vm.c
…
drm_vma_manager.c
drm: Remove "protection" around drm_vma_offset_manager_destroy()
2018-09-04 19:00:32 +01:00
drm_writeback.c
drm: writeback: Fix doc that says connector should be disconnected
2018-07-16 16:35:27 +01:00
Kconfig
drm/fb_helper: Allow leaking fbdev smem_start
2018-10-03 21:08:21 +02:00
Makefile
drm/dsc: Add helpers for DSC picture parameter set infoframes
2018-11-27 18:35:17 -08:00