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kernel_optimize_test/drivers/gpu/drm
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Fabio Estevam 447a011bb4 drm/msm: Fix suspend/resume on i.MX5 
[ Upstream commit a9748134ea4aad989e52a6a91479e0acfd306e5b ]

When putting iMX5 into suspend, the following flow is
observed:

[   70.023427] [<c07755f0>] (msm_atomic_commit_tail) from [<c06e7218>]
(commit_tail+0x9c/0x18c)
[   70.031890] [<c06e7218>] (commit_tail) from [<c0e2920c>]
(drm_atomic_helper_commit+0x1a0/0x1d4)
[   70.040627] [<c0e2920c>] (drm_atomic_helper_commit) from
[<c06e74d4>] (drm_atomic_helper_disable_all+0x1c4/0x1d4)
[   70.050913] [<c06e74d4>] (drm_atomic_helper_disable_all) from
[<c0e2943c>] (drm_atomic_helper_suspend+0xb8/0x170)
[   70.061198] [<c0e2943c>] (drm_atomic_helper_suspend) from
[<c06e84bc>] (drm_mode_config_helper_suspend+0x24/0x58)

In the i.MX5 case, priv->kms is not populated (as i.MX5 does not use any
of the Qualcomm display controllers), causing a NULL pointer
dereference in msm_atomic_commit_tail():

[   24.268964] 8<--- cut here ---
[   24.274602] Unable to handle kernel NULL pointer dereference at
virtual address 00000000
[   24.283434] pgd = (ptrval)
[   24.286387] [00000000] *pgd=ca212831
[   24.290788] Internal error: Oops: 17 [#1] SMP ARM
[   24.295609] Modules linked in:
[   24.298777] CPU: 0 PID: 197 Comm: init Not tainted 5.11.0-rc2-next-20210111 #333
[   24.306276] Hardware name: Freescale i.MX53 (Device Tree Support)
[   24.312442] PC is at msm_atomic_commit_tail+0x54/0xb9c
[   24.317743] LR is at commit_tail+0xa4/0x1b0

Fix the problem by calling drm_mode_config_helper_suspend/resume()
only when priv->kms is available.

Fixes: ca8199f134 ("drm/msm/dpu: ensure device suspend happens during PM sleep")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-30 14:32:03 +02:00
..
amd drm/amdgpu: Add additional Sienna Cichlid PCI ID 2021-03-30 14:31:55 +02:00
arc drm/arc: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS 2020-06-10 09:02:03 +02:00
arm Linux 5.9-rc4 2020-09-08 14:41:40 +10:00
armada drm-misc-next for 5.10: 2020-09-23 09:52:24 +10:00
aspeed drm/aspeed: Fix Kconfig warning & subsequent build errors 2020-12-30 11:52:56 +01:00
ast drm/ast: Reload gamma LUT after changing primary plane's color format 2020-11-25 09:13:20 +01:00
atmel-hlcdc drm/atomic-helper: reset vblank on crtc reset 2020-07-02 20:25:51 +02:00
bochs Linux 5.8 2020-08-11 11:58:31 +10:00
bridge drm/bridge: sii902x: Enable I/O and core VCC supplies if present 2021-01-19 18:27:19 +01:00
etnaviv drm/etnaviv: Use FOLL_FORCE for userptr 2021-03-30 14:31:55 +02:00
exynos drm/exynos: depend on COMMON_CLK to fix compile tests 2020-11-23 10:01:32 +09:00
fsl-dcu Linux 5.9-rc4 2020-09-08 14:41:40 +10:00
gma500 gma500: clean up error handling in init 2021-03-04 11:37:36 +01:00
hisilicon drm/hisilicon: Fix use-after-free 2021-03-07 12:34:11 +01:00
i2c sound updates for 5.9 2020-08-06 14:27:31 -07:00
i810 drm/i810: make i810_flush_queue() return void 2020-09-11 10:54:17 +02:00
i915 drm/i915: Fix the GT fence revocation runtime PM logic 2021-03-30 14:31:55 +02:00
imx drm/imx/dcss: fix rotations for Vivante tiled formats 2020-12-30 11:53:22 +01:00
ingenic drm/ingenic: Fix bad revert 2020-10-12 20:26:14 +02:00
lib
lima drm/lima: fix reference leak in lima_pm_busy 2021-03-04 11:37:49 +01:00
mcde drm/mcde: Fix handling of platform_get_irq() error 2020-12-30 11:52:56 +01:00
mediatek drm/mediatek: Check if fb is null 2021-03-04 11:37:46 +01:00
meson drm: meson_drv add shutdown function 2021-03-17 17:06:19 +01:00
mga
mgag200 drm/mgag200: fix spelling mistake "expeced" -> "expected" 2020-08-27 11:17:52 +02:00
msm drm/msm: Fix suspend/resume on i.MX5 2021-03-30 14:32:03 +02:00
mxsfb drm: mxsfb: Silence -EPROBE_DEFER while waiting for bridge 2020-12-30 11:53:53 +01:00
nouveau drm/nouveau/kms: handle mDP connectors 2021-03-04 11:38:27 +01:00
omapdrm drm/omap: dmm_tiler: fix return error code in omap_dmm_probe() 2020-12-30 11:53:13 +01:00
panel drm/panel: kd35t133: allow using non-continuous dsi clock 2021-03-04 11:38:28 +01:00
panfrost drm/panfrost: Support cache-coherent integrations 2021-02-07 15:37:12 +01:00
pl111 drm: pl111: Update documentation 2020-07-23 10:06:22 +02:00
qxl qxl: Fix uninitialised struct field head.surface_id 2021-03-17 17:06:19 +01:00
r128
radeon Merge tag 'amd-drm-fixes-5.10-2020-10-09' of git://people.freedesktop.org/~agd5f/linux into drm-next 2020-10-12 10:40:43 +10:00
rcar-du drm: rcar-du: Fix the return check of of_parse_phandle and of_find_device_by_node 2021-03-04 11:37:38 +01:00
rockchip drm/rockchip: Require the YTR modifier for AFBC 2021-03-04 11:38:28 +01:00
savage treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
scheduler drm/sched: Cancel and flush all outstanding jobs before finish. 2021-03-04 11:38:27 +01:00
selftests drm/mst: Add support for QUERY_STREAM_ENCRYPTION_STATUS MST sideband message 2020-09-01 13:02:33 +05:30
shmobile drm/shmobile: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS 2020-06-10 09:05:18 +02:00
sis
sti Linux 5.9-rc4 2020-09-08 14:41:40 +10:00
stm drm/stm: repair runtime power management 2020-07-08 11:47:01 +02:00
sun4i drm/sun4i: tcon: fix inverted DCLK polarity 2021-03-04 11:37:41 +01:00
tdfx
tegra drm/tegra: Fix reference leak when pm_runtime_get_sync() fails 2021-03-04 11:37:42 +01:00
tidss drm/tidss: implement WA for AM65xx erratum i2000 2020-08-21 15:17:05 +03:00
tilcdc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
tiny drm: Use USB controller's DMA mask when importing dmabufs 2021-03-17 17:06:19 +01:00
ttm drm/ttm: fix eviction valuable range check. 2020-10-21 06:59:07 +10:00
tve200 drm/tve200: Fix handling of platform_get_irq() error 2020-12-30 11:52:56 +01:00
udl drm: Use USB controller's DMA mask when importing dmabufs 2021-03-17 17:06:19 +01:00
v3d drm/v3d: Fix double free in v3d_submit_cl_ioctl() 2020-10-26 11:43:31 +01:00
vboxvideo drm/vboxvideo: Use drm_gem_vram_vmap() interfaces 2020-09-14 09:12:24 +02:00
vc4 drm/vc4: hdmi: Update the CEC clock divider on HSM rate change 2021-03-04 11:37:49 +01:00
vgem drm/vgem: Use devm_drm_dev_alloc 2020-09-11 10:47:19 +02:00
via treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
virtio drm/virtio: use kvmalloc for large allocations 2021-03-07 12:34:04 +01:00
vkms drm/vkms: Use devm_drm_dev_alloc 2020-09-11 10:47:19 +02:00
vmwgfx RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
xen drm-misc-next for 5.10: 2020-09-23 09:52:24 +10:00
xlnx drm/xlnx: fix kmemleak by sending vblank_event in atomic_disable 2021-02-26 10:13:01 +01:00
zte sound updates for 5.9 2020-08-06 14:27:31 -07:00
drm_agpsupport.c
drm_atomic_helper.c drm/atomic: put state on error path 2021-01-27 11:54:55 +01:00
drm_atomic_state_helper.c drm/atomic-helper: reset vblank on crtc reset 2020-07-02 20:25:51 +02:00
drm_atomic_uapi.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_atomic.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_auth.c drm/auth: make drm_{set,drop}master_ioctl symmetrical 2020-06-15 14:49:50 +01:00
drm_blend.c
drm_bridge_connector.c drm/bridge_connector: Set default status connected for eDP connectors 2020-08-26 19:11:41 +02:00
drm_bridge.c drm: bridge: Pass drm_display_info to drm_bridge_funcs .mode_valid() 2020-06-23 19:53:27 +02:00
drm_bufs.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
drm_cache.c drm: core: fix common struct sg_table related issues 2020-09-10 08:17:48 +02:00
drm_client_modeset.c drm: Nuke mode->vrefresh 2020-05-27 14:31:42 +03:00
drm_client.c drm/client: Add drm_client_framebuffer_flush() 2020-05-26 13:31:01 +02:00
drm_color_mgmt.c drm/modeset-lock: Take the modeset BKL for legacy drivers 2020-08-17 13:41:50 -04:00
drm_connector.c drm: Replace mode->export_head with a boolean 2020-09-01 13:38:34 +03:00
drm_context.c
drm_crtc_helper_internal.h drm/probe_helper: Add drm_connector_helper_funcs.mode_valid_ctx 2020-07-13 13:29:20 -04:00
drm_crtc_helper.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_crtc_internal.h
drm_crtc.c Linux 5.9-rc2 2020-08-25 11:00:02 +02:00
drm_damage_helper.c
drm_debugfs_crc.c drm/crc-debugfs: Fix memleak in crc_control_write 2020-09-01 09:45:44 +02:00
drm_debugfs.c drm/debug: Expose connector VRR monitor range via debugfs 2020-06-25 15:47:14 -07:00
drm_dma.c
drm_dp_aux_dev.c drm/dp_aux_dev: check aux_dev before use in drm_dp_aux_dev_get_by_minor() 2020-12-30 11:54:19 +01:00
drm_dp_cec.c
drm_dp_dual_mode_helper.c
drm_dp_helper.c drm/dp: fix kernel-doc warnings at drm_dp_helper.c 2020-10-27 11:20:36 +01:00
drm_dp_mst_topology_internal.h
drm_dp_mst_topology.c drm/dp_mst: Don't cache EDIDs for physical ports 2021-03-04 11:37:49 +01:00
drm_drv.c drm/dev: Remove drm_dev_init 2020-09-21 10:45:08 +02:00
drm_dsc.c
drm_dumb_buffers.c
drm_edid_load.c
drm_edid.c drm/edid: fix objtool warning in drm_cvt_modes() 2020-12-30 11:54:29 +01:00
drm_encoder_slave.c drm: encoder_slave: use new I2C API 2020-06-19 09:20:21 +02:00
drm_encoder.c
drm_fb_cma_helper.c
drm_fb_helper.c drm/fb-helper: Add missed unlocks in setcmap_legacy() 2021-03-04 11:37:36 +01:00
drm_file.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_flip_work.c
drm_format_helper.c drm/format-helper: Add drm_fb_swab() 2020-05-26 13:33:08 +02:00
drm_fourcc.c drm: drm_fourcc: add NV15, Q410, Q401 YUV formats 2020-06-19 13:33:40 +01:00
drm_framebuffer.c gpu/drm: cleanup coding style a bit 2020-09-09 11:45:18 +02:00
drm_gem_cma_helper.c drm: prime: add common helper to check scatterlist contiguity 2020-09-10 08:17:48 +02:00
drm_gem_framebuffer_helper.c
drm_gem_shmem_helper.c drm/shmem-helpers: vunmap: Don't put pages for dma-buf 2021-03-17 17:06:19 +01:00
drm_gem_ttm_helper.c drm/ttm: merge offset and base in ttm_bus_placement 2020-09-08 10:43:30 +02:00
drm_gem_vram_helper.c drm/vram-helper: Fix use of top-down placement 2020-11-20 05:20:48 +10:00
drm_gem.c drm/shme-helpers: Fix dma_buf_mmap forwarding bug 2020-10-28 12:27:41 +01:00
drm_hashtab.c
drm_hdcp.c
drm_internal.h drm/dev: Remove drm_dev_init 2020-09-21 10:45:08 +02:00
drm_ioc32.c drm/compat: Clear bounce structures 2021-03-17 17:06:18 +01:00
drm_ioctl.c drm-misc-next for v5.9: 2020-06-24 15:45:51 +10:00
drm_irq.c drm: use drm_dev_has_vblank more 2020-05-29 12:58:11 +02:00
drm_kms_helper_common.c
drm_lease.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_legacy_misc.c
drm_legacy.h
drm_lock.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_managed.c drm/dev: Remove drm_dev_init 2020-09-21 10:45:08 +02:00
drm_memory.c
drm_mipi_dbi.c Linux 5.8 2020-08-11 11:58:31 +10:00
drm_mipi_dsi.c drm: mipi-dsi: Convert logging to drm_* functions. 2020-07-10 20:21:45 +02:00
drm_mm.c drm/mm: cleanup and improve next_hole_*_addr() 2020-06-23 15:46:40 +02:00
drm_mode_config.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_mode_object.c drm/modeset-lock: Take the modeset BKL for legacy drivers 2020-08-17 13:41:50 -04:00
drm_modes.c drm/modes: Switch to 64bit maths to avoid integer overflow 2021-03-04 11:38:27 +01:00
drm_modeset_helper.c
drm_modeset_lock.c
drm_of.c Linux 5.8 2020-08-11 11:58:31 +10:00
drm_panel_orientation_quirks.c drm: Added orientation quirk for ASUS tablet model T103HAF 2020-08-04 11:45:23 +02:00
drm_panel.c drm/panel: Add helper for reading DT rotation 2020-08-16 17:12:18 +02:00
drm_pci.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_plane_helper.c
drm_plane.c Linux 5.9-rc2 2020-08-25 11:00:02 +02:00
drm_prime.c drm: kernel-doc: add description for a new function parameter 2020-10-27 11:21:04 +01:00
drm_print.c
drm_probe_helper.c Merge tag 'drm-intel-next-2020-07-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2020-07-31 14:42:37 +10:00
drm_property.c
drm_rect.c
drm_scatter.c gpu/drm: remove the powerpc hack in drm_legacy_sg_alloc 2020-06-02 10:59:11 -07:00
drm_scdc_helper.c
drm_self_refresh_helper.c
drm_simple_kms_helper.c
drm_syncobj.c drm/syncobj: Fix use-after-free 2021-01-27 11:54:55 +01:00
drm_sysfs.c drm/connector: notify userspace on hotplug after register complete 2020-06-03 10:24:23 +02:00
drm_trace_points.c
drm_trace.h
drm_vblank_work.c This tree adds the sched_set_fifo*() encapsulation APIs to remove 2020-08-06 11:55:43 -07:00
drm_vblank.c drm/atomic-helper: Remove the timestamping constant update from drm_atomic_helper_update_legacy_modeset_state() 2020-09-14 22:37:31 +03:00
drm_vm.c drm-misc-next for v5.9: 2020-06-24 15:45:51 +10:00
drm_vma_manager.c
drm_writeback.c drm/writeback: don't set fence->ops to default 2020-05-20 20:03:45 +02:00
Kconfig drm/radeon: fix AGP dependency 2021-03-30 14:31:51 +02:00
Makefile drm/imx: compile imx directory by default 2020-09-09 16:39:48 +02:00