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c50bfd08d6
linux/drivers/gpu/drm
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Daniel Vetter c50bfd08d6 drm/fbdev: Return -EBUSY when oopsing 
Trying to do anything with kms drivers when oopsing has become a
failing proposition. But since we can end up in the fbdev code simply
due to the console unblanking that's done unconditionally just
removing our panic handler isn't enough. We need to block all fbdev
callbacks when oopsing.

There was already one in the blank handler, but it failed silently.
That makes it impossible for drivers (like i915) who subclass these
functions to figure this out.

Instead consistently return -EBUSY so that everyone knows that we
really don't want to be bothered right now. This also allows us to
remove a pile of FIXMEs from the i915 fbdev code (since due to the
failure code they now won't attempt to grab dangerous locks any more).

Cc: Dave Airlie <airlied@gmail.com>
Cc: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-08-06 14:13:01 +02:00
..
amd drm/amdkfd: Set correct doorbell packet type for Carrizo 2015-07-20 09:16:49 +03:00
armada drm/armada: Use new drm_fb_helper functions 2015-08-06 14:12:56 +02:00
ast drm/ast: Use new drm_fb_helper functions 2015-08-06 14:12:57 +02:00
atmel-hlcdc drm/atomic: pass old crtc state to atomic_begin/flush. 2015-07-27 16:23:22 +02:00
bochs
bridge drm/exynos: atomic dpms support 2015-06-20 00:32:52 +09:00
cirrus
exynos drm/exynos: Use new drm_fb_helper functions 2015-08-06 14:12:58 +02:00
gma500 drm/gma500: Use new drm_fb_helper functions 2015-08-06 14:12:59 +02:00
i2c Merge branch 'drm-tda998x-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next 2015-05-29 09:19:59 +10:00
i810
i915 drm/fbdev: Return -EBUSY when oopsing 2015-08-06 14:13:01 +02:00
imx drm/imx: tve: fix media bus format for VGA output 2015-07-10 11:02:47 +02:00
mga
mgag200 Merge tag 'topic/drm-misc-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-07-24 14:28:16 +10:00
msm drm/msm: Use new drm_fb_helper functions 2015-08-06 14:12:58 +02:00
nouveau drm: Make the connector dpms callback return a value, v2. 2015-07-27 16:23:28 +02:00
omapdrm drm/omap: Fixup compile fail 2015-08-06 14:09:35 +02:00
panel drm/panel: simple: Add bus format for HannStar HSD100PXN1 2015-06-12 16:40:42 +02:00
qxl drm/qxl: Use new drm_fb_helper functions 2015-08-06 14:12:59 +02:00
r128
radeon drm: Make the connector dpms callback return a value, v2. 2015-07-27 16:23:28 +02:00
rcar-du drm/atomic: pass old crtc state to atomic_begin/flush. 2015-07-27 16:23:22 +02:00
rockchip drm/rockchip: Use new drm_fb_helper functions 2015-08-06 14:12:56 +02:00
savage
shmobile drm: Simplify drm_for_each_legacy_plane arguments 2015-07-22 16:25:45 +02:00
sis
sti drm/atomic: pass old crtc state to atomic_begin/flush. 2015-07-27 16:23:22 +02:00
tdfx
tegra drm/tegra: Use new drm_fb_helper functions 2015-08-06 14:12:57 +02:00
tilcdc
ttm drm/ttm: improve uncached page deallocation. 2015-07-17 18:18:04 +10:00
udl drm/udl: Use new drm_fb_helper functions 2015-08-06 14:13:00 +02:00
vgem drm/vgem: Set unique to "vgem" 2015-06-24 11:20:46 +10:00
via
virtio virtio-gpu: add locking for vbuf pool 2015-06-16 11:22:41 +02:00
vmwgfx drm: Make the connector dpms callback return a value, v2. 2015-07-27 16:23:28 +02:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c drm/atomic: Update legacy DPMS state during modesets, v3. 2015-07-27 16:23:29 +02:00
drm_atomic.c Merge tag 'topic/connector-locking-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-07-24 14:30:29 +10:00
drm_auth.c
drm_bridge.c
drm_bufs.c
drm_cache.c drm: Avoid the double clflush on the last cache line in drm_clflush_virt_range() 2015-06-19 17:25:17 +02:00
drm_context.c drm: Convert drm_legacy_ctxbitmap_init to void return type 2015-07-02 17:00:48 +02:00
drm_crtc_helper.c drm: Make the connector dpms callback return a value, v2. 2015-07-27 16:23:28 +02:00
drm_crtc_internal.h
drm_crtc.c drm: Make the connector dpms callback return a value, v2. 2015-07-27 16:23:28 +02:00
drm_debugfs.c
drm_dma.c
drm_dp_helper.c
drm_dp_mst_topology.c drm/dp/mst: close deadlock in connector destruction. 2015-06-25 11:57:23 +10:00
drm_drv.c Merge tag 'topic/connector-locking-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-07-24 14:30:29 +10:00
drm_edid_load.c
drm_edid.c drm: Roll out drm_for_each_connector more 2015-07-22 16:25:47 +02:00
drm_encoder_slave.c
drm_fb_cma_helper.c drm/fb_cma_helper: Use new drm_fb_helper functions 2015-08-06 14:13:00 +02:00
drm_fb_helper.c drm/fbdev: Return -EBUSY when oopsing 2015-08-06 14:13:01 +02:00
drm_flip_work.c
drm_fops.c
drm_gem_cma_helper.c drm/cma-helper: Fix locking in drm_fb_cma_debugfs_show 2015-07-22 17:29:24 +02:00
drm_gem.c drm/gem: rip out drm vma accounting for gem mmaps 2015-07-14 12:18:45 +02:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h
drm_ioc32.c Merge tag 'topic/drm-misc-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-next 2015-07-24 14:28:16 +10:00
drm_ioctl.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-06-26 13:18:51 -07:00
drm_irq.c drm: Fix warning with make xmldocs caused by drm_irq.c 2015-07-15 14:19:04 +02:00
drm_legacy.h drm: Convert drm_legacy_ctxbitmap_init to void return type 2015-07-02 17:00:48 +02:00
drm_lock.c drm: Reject DRI1 hw lock ioctl functions for kms drivers 2015-07-02 17:00:48 +02:00
drm_memory.c
drm_mipi_dsi.c
drm_mm.c drm: clean up drm_mm debugfs output 2015-05-29 09:17:57 +10:00
drm_modes.c
drm_modeset_lock.c drm: Roll out drm_for_each_{plane,crtc,encoder} 2015-07-22 17:29:37 +02:00
drm_of.c drm: Add modeset object iterators 2015-07-22 16:25:45 +02:00
drm_panel.c
drm_pci.c
drm_plane_helper.c drm/atomic: pass old crtc state to atomic_begin/flush. 2015-07-27 16:23:22 +02:00
drm_platform.c
drm_prime.c drm: prime: Document gem_prime_mmap 2015-06-19 17:50:05 +02:00
drm_probe_helper.c drm/probe-helper: Grab mode_config.mutex in poll_init/enable 2015-07-22 16:25:45 +02:00
drm_rect.c
drm_scatter.c
drm_sysfs.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-06-26 13:18:51 -07:00
drm_trace_points.c
drm_trace.h
drm_vm.c
drm_vma_manager.c
Kconfig drm/fb_helper: Create wrappers for blit, copyarea and fillrect funcs 2015-08-06 14:12:55 +02:00
Makefile drm/amdgpu: add core driver (v4) 2015-06-03 21:03:15 -04:00