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linux-stable/drivers/gpu/drm
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Hugh Dickins cdc1e6e225 drm/i915: fix blank screen booting crashes 
5.15-rc1 crashes with blank screen when booting up on two ThinkPads
using i915.  Bisections converge convincingly, but arrive at different
and suprising "culprits", none of them the actual culprit.

netconsole (with init_netconsole() hacked to call i915_init() when
logging has started, instead of by module_init()) tells the story:

kernel BUG at drivers/gpu/drm/i915/i915_sw_fence.c:245!
with RSI: ffffffff814d408b pointing to sw_fence_dummy_notify().
I've been building with CONFIG_CC_OPTIMIZE_FOR_SIZE=y, and that
function needs to be 4-byte aligned.

Fixes: 62eaf0ae21 ("drm/i915/guc: Support request cancellation")
Signed-off-by: Hugh Dickins <hughd@google.com>
Tested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-10-02 09:39:15 -07:00
..
amd drm/amdgpu: force exit gfxoff on sdma resume for rmb s0ix 2021-09-28 14:40:27 -04:00
arm drm/arm/hdlcd: Convert to Linux IRQ interfaces 2021-08-10 20:00:51 +02:00
armada drm/aperture: Pass DRM driver structure instead of driver name 2021-07-01 11:11:55 +02:00
aspeed drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default 2021-06-24 15:40:11 +02:00
ast drm/ast: Use offset-adjusted shadow-plane mappings 2021-08-08 20:27:06 +02:00
atmel-hlcdc drm/atmel-hlcdc: Convert to Linux IRQ interfaces 2021-08-10 20:00:58 +02:00
bridge drm/bridge: ti-sn65dsi86: Avoid creating multiple connectors 2021-08-12 09:56:09 -07:00
etnaviv drm/etnaviv: add missing MMU context put when reaping MMU mapping 2021-09-16 10:35:37 +02:00
exynos drm/exynos: Make use of the helper function devm_platform_ioremap_resource() 2021-09-16 14:05:07 +09:00
fsl-dcu drm/fsl-dcu: Convert to Linux IRQ interfaces 2021-08-10 20:13:25 +02:00
gma500 drm/gma500: Convert to Linux IRQ interfaces 2021-08-10 20:13:32 +02:00
gud drm/gud: Get offset-adjusted mapping from drm_gem_fb_vmap() 2021-08-08 20:27:24 +02:00
hisilicon drm-misc-next for v5.15: 2021-07-30 14:52:00 +10:00
hyperv drm/hyperv: Use offset-adjusted shadow-plane mappings 2021-08-08 20:27:27 +02:00
i2c
i810 drm: IRQ midlayer is now legacy 2021-08-10 20:14:01 +02:00
i915 drm/i915: fix blank screen booting crashes 2021-10-02 09:39:15 -07:00
imx drm for v5.15-rc1 2021-09-01 11:26:46 -07:00
ingenic drm/ingenic: Use standard drm_atomic_helper_commit_tail 2021-08-11 15:49:15 +02:00
kmb drm for v5.15-rc1 2021-09-01 11:26:46 -07:00
lib
lima drm-misc-next for v5.15: 2021-07-21 11:58:28 +10:00
mcde drm-misc-next for v5.15: 2021-07-30 14:52:00 +10:00
mediatek drm for v5.15-rc1 2021-09-01 11:26:46 -07:00
meson drm for v5.15-rc1 2021-09-01 11:26:46 -07:00
mga drm: IRQ midlayer is now legacy 2021-08-10 20:14:01 +02:00
mgag200 drm/mgag200: Fix uninitialized variable delta 2021-08-18 20:47:59 +02:00
msm Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
mxsfb drm/mxsfb: Convert to Linux IRQ interfaces 2021-08-10 20:13:45 +02:00
nouveau drm/nouveau/nvkm: Replace -ENOSYS with -ENODEV 2021-09-20 11:05:49 -07:00
omapdrm drm/bridge: Centralize error message when bridge attach fails 2021-07-28 16:33:12 +03:00
panel drm for v5.15-rc1 2021-09-01 11:26:46 -07:00
panfrost drm/panfrost: Clamp lock region to Bifrost minimum 2021-08-25 15:40:19 +01:00
pl111 drm/pl111: Remove unused including <linux/version.h> 2021-07-31 20:52:01 +02:00
qxl drm-misc-next for v5.15: 2021-07-21 11:58:28 +10:00
r128 drm: IRQ midlayer is now legacy 2021-08-10 20:14:01 +02:00
radeon drm/radeon: pass drm dev radeon_agp_head_init directly 2021-09-16 09:56:24 -04:00
rcar-du drm: rcar-du: lvds: Use dev_err_probe() 2021-07-28 16:33:32 +03:00
rockchip drm/rockchip: cdn-dp-core: Make cdn_dp_core_resume __maybe_unused 2021-09-16 12:02:33 -07:00
savage
scheduler drm/sched: Allow using a dedicated workqueue for the timeout/fault tdr 2021-07-01 08:53:25 +02:00
selftests drm: Fix oops in damage self-tests by mocking damage property 2021-08-02 11:15:11 +02:00
shmobile drm/shmobile: Convert to Linux IRQ interfaces 2021-07-25 11:01:12 +02:00
sis
sti drm/bridge: Centralize error message when bridge attach fails 2021-07-28 16:33:12 +03:00
stm drm/stm: dsi: compute the transition time from LP to HS and back 2021-07-19 15:35:55 +02:00
sun4i drm/bridge: Centralize error message when bridge attach fails 2021-07-28 16:33:12 +03:00
tdfx
tegra drm/tegra: uapi: Fix wrong mapping end address in case of disabled IOMMU 2021-09-16 18:06:51 +02:00
tidss drm/tidss: Convert to Linux IRQ interfaces 2021-08-10 20:13:49 +02:00
tilcdc drm/tilcdc: Convert to Linux IRQ interfaces 2021-08-10 20:13:53 +02:00
tiny drm/simpledrm: Use offset-adjusted shadow-plane mapping 2021-08-08 20:27:40 +02:00
ttm drm/ttm: fix type mismatch error on sparc64 2021-09-14 13:36:02 -07:00
tve200 drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default 2021-06-24 15:40:11 +02:00
udl drm/udl: Use offset-adjusted shadow-plane mapping 2021-08-08 20:27:44 +02:00
v3d drm/v3d: Expose performance counters to userspace 2021-07-21 00:19:59 +01:00
vboxvideo drm/vbox: Use offset-adjusted shadow-plane mappings 2021-08-08 20:27:49 +02:00
vc4 Revert "drm/vc4: hdmi: Remove drm_encoder->crtc usage" 2021-09-19 10:11:53 -07:00
vgem Revert "drm/vgem: Implement mmap as GEM object function" 2021-07-13 13:15:52 +02:00
via drm: IRQ midlayer is now legacy 2021-08-10 20:14:01 +02:00
virtio drm/virtio: set non-cross device blob uuid_state 2021-08-12 14:58:31 +02:00
vkms drm/vkms: Use offset-adjusted shadow-plane mappings and output 2021-08-08 20:27:52 +02:00
vmwgfx RDMA v5.15 merge window Pull Request 2021-09-02 14:47:21 -07:00
xen drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default 2021-06-24 15:40:11 +02:00
xlnx drm/xlnx/zynqmp_disp: Fix incorrectly named enum 'zynqmp_disp_layer_id' 2021-08-09 02:28:05 +03:00
zte drm/zte: Don't set struct drm_device.irq_enabled 2021-06-29 15:40:53 +02:00
drm_agpsupport.c
drm_aperture.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_atomic.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_atomic_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_atomic_state_helper.c
drm_atomic_uapi.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_auth.c drm: add lockdep assert to drm_is_current_master_locked 2021-08-05 12:08:15 +02:00
drm_blend.c
drm_bridge.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_bridge_connector.c
drm_bufs.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_cache.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_client.c
drm_client_modeset.c
drm_color_mgmt.c
drm_connector.c drm: avoid circular locks in drm_mode_getconnector 2021-07-20 20:13:56 +02:00
drm_context.c drm: correct function name drm_legacy_ctxbitmap_flush() 2021-05-16 22:01:14 +02:00
drm_crtc.c
drm_crtc_helper.c
drm_crtc_helper_internal.h
drm_crtc_internal.h Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next 2021-07-27 12:48:17 +02:00
drm_damage_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_debugfs.c drm: avoid blocking in drm_clients_info's rcu section 2021-07-20 20:14:42 +02:00
drm_debugfs_crc.c drm/doc: document how userspace should find out CRTC index 2021-06-10 19:14:47 +02:00
drm_displayid.c
drm_dma.c
drm_dp_aux_bus.c Bus: Make remove callback return void tag 2021-08-11 08:47:08 +10:00
drm_dp_aux_dev.c
drm_dp_cec.c
drm_dp_dual_mode_helper.c
drm_dp_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_dp_mst_topology.c drm/dp_mst: Fix return code on sideband message failure 2021-07-27 18:58:28 -04:00
drm_dp_mst_topology_internal.h
drm_drv.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_dsc.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_dumb_buffers.c
drm_edid.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_edid_load.c
drm_encoder.c
drm_encoder_slave.c
drm_fb_cma_helper.c drm: Add and export function drm_fb_cma_sync_non_coherent 2021-05-25 11:42:09 +01:00
drm_fb_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_file.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_flip_work.c
drm_format_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_fourcc.c Merge tag 'amd-drm-next-5.14-2021-06-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-next 2021-06-04 06:13:57 +10:00
drm_framebuffer.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_gem.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_gem_atomic_helper.c drm/gem: Provide offset-adjusted framebuffer BO mappings 2021-08-08 20:26:16 +02:00
drm_gem_cma_helper.c drm: Fix misleading documentation of drm_gem_cma_create() 2021-06-01 17:27:20 +01:00
drm_gem_framebuffer_helper.c drm/gem: Provide offset-adjusted framebuffer BO mappings 2021-08-08 20:26:16 +02:00
drm_gem_shmem_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_gem_ttm_helper.c drm/ttm: rename bo->mem and make it a pointer 2021-06-02 11:07:25 +02:00
drm_gem_vram_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_hashtab.c
drm_hdcp.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_internal.h drm: Mark IRQ_BUSID ioctl as legacy 2021-05-17 21:19:48 +02:00
drm_ioc32.c drm: Copy drm_wait_vblank to user before returning 2021-08-17 13:56:03 -04:00
drm_ioctl.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_irq.c drm: IRQ midlayer is now legacy 2021-08-10 20:14:01 +02:00
drm_kms_helper_common.c
drm_lease.c drm: clean up unused kerneldoc in drm_lease.c 2021-07-30 11:55:41 +02:00
drm_legacy.h drm: Mark IRQ_BUSID ioctl as legacy 2021-05-17 21:19:48 +02:00
drm_legacy_misc.c drm: IRQ midlayer is now legacy 2021-08-10 20:14:01 +02:00
drm_lock.c
drm_managed.c
drm_memory.c
drm_mipi_dbi.c drm/mipi-dbi: Use framebuffer dma-buf helpers 2021-07-23 20:17:59 +02:00
drm_mipi_dsi.c
drm_mm.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_mode_config.c
drm_mode_object.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_modes.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_modeset_helper.c
drm_modeset_lock.c
drm_of.c drm/of: free the iterator object on failure 2021-07-15 10:54:04 +01:00
drm_panel.c drm/dp: Move panel DP AUX backlight support to drm_dp_helper 2021-07-13 06:38:37 -07:00
drm_panel_orientation_quirks.c
drm_pci.c drm: Mark IRQ_BUSID ioctl as legacy 2021-05-17 21:19:48 +02:00
drm_plane.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_plane_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_prime.c RDMA v5.15 merge window Pull Request 2021-09-02 14:47:21 -07:00
drm_print.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
drm_probe_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_property.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_rect.c
drm_scatter.c
drm_scdc_helper.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_self_refresh_helper.c
drm_simple_kms_helper.c drm/simple-kms: Support custom CRTC state 2021-08-08 20:14:08 +02:00
drm_syncobj.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_sysfs.c
drm_trace.h
drm_trace_points.c
drm_vblank.c drm: IRQ midlayer is now legacy 2021-08-10 20:14:01 +02:00
drm_vblank_work.c
drm_vm.c
drm_vma_manager.c drm: Fix typo in comments 2021-08-02 10:19:43 +02:00
drm_writeback.c
Kconfig drm: amdgpu: remove obsolete reference to config CHASH 2021-08-18 18:26:10 -04:00
Makefile drm/bochs: Move to tiny/ 2021-07-05 08:54:44 +02:00