Daniel Vetter ff26ffa8ee drm/i915: Fix __intel_wait_for_register_fw to not sleep in atomic ...

The unconditionally fallback to the blocking wait_for resulted in
impressive fireworks at boot-up on my snb here. Make sure if we set
the slow timeout to 0 that we never ever sleep. The tail of the
callchain was

intel_wait_for_register
-> __intel_wait_for_register_fw
  -> usleep_range
     -> BOOM

It blew up in intel_crt_detect load detection code on the
ADPA_CRT_HOTPLUG_FORCE_TRIGGER in the ADPA register.

v2: Shut up gcc.

v3: Use uninitialized_var() (Chris).

Fixes: 0564654340 ("drm/i915: Acquire uncore.lock over intel_uncore_wait_for_register()")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1494429572-15118-1-git-send-email-daniel.vetter@ffwll.ch

2017-05-10 20:06:41 +02:00

..

amd

Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-04-11 07:41:10 +10:00

arc

drm: remove drm_vblank_no_hw_counter assignment from driver code

2017-02-07 21:43:55 +01:00

arm

drm: mali-dp: use div_u64 for expensive 64-bit divisions

2017-04-26 17:54:58 +01:00

armada

dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro

2017-04-20 13:47:46 +05:30

ast

Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-04-11 07:41:10 +10:00

atmel-hlcdc

drm: atmel-hlcdc: Uninitialized return in atmel_hlcdc_create_outputs()

2017-04-18 11:52:45 +02:00

bochs

drm/ttm: add io_mem_pfn callback

2017-04-04 23:33:42 -04:00

bridge

drm: dw-hdmi: Implement the mode_fixup drm helper

2017-04-10 14:53:10 +05:30

cirrus

Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-04-11 07:41:10 +10:00

etnaviv

Merge tag 'v4.11-rc7' into drm-next

2017-04-19 11:07:14 +10:00

exynos

drm: convert drivers to use drm_of_find_panel_or_bridge

2017-04-06 17:00:27 -04:00

fsl-dcu

drm: convert drivers to use drm_of_find_panel_or_bridge

2017-04-06 17:00:27 -04:00

gma500

drm: Add acquire ctx to ->gamma_set hook

2017-04-06 10:21:55 +02:00

hisilicon

drm: convert drivers to use drm_of_find_panel_or_bridge

2017-04-06 17:00:27 -04:00

i2c

…

i810

drm/i810: drop device_is_agp callback

2017-01-26 10:44:43 +01:00

i915

drm/i915: Fix __intel_wait_for_register_fw to not sleep in atomic

2017-05-10 20:06:41 +02:00

imx

Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-04-11 07:41:10 +10:00

lib

drm: Add a simple generator of random permutations

2016-12-27 12:34:00 +01:00

mediatek

Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-04-11 07:41:10 +10:00

meson

drm: convert drivers to use of_graph_get_remote_node

2017-04-06 17:00:27 -04:00

mga

lib/vsprintf.c: remove %Z support

2017-02-27 18:43:47 -08:00

mgag200

Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-04-11 07:41:10 +10:00

msm

Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next

2017-04-11 07:47:02 +10:00

mxsfb

drm: convert drivers to use drm_of_find_panel_or_bridge

2017-04-06 17:00:27 -04:00

nouveau

Merge branch 'linux-4.12' of git://github.com/skeggsb/linux into drm-next

2017-05-02 04:46:01 +10:00

omapdrm

dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro

2017-04-20 13:47:46 +05:30

panel

Merge tag 'drm/panel/for-4.12-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

2017-04-13 06:17:40 +10:00

qxl

drm/ttm: add io_mem_pfn callback

2017-04-04 23:33:42 -04:00

r128

gpu: drm: drivers: Convert printk(KERN_<LEVEL> to pr_<level>

2017-03-01 09:44:11 +01:00

radeon

Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-04-11 07:41:10 +10:00

rcar-du

drm: rcar-du: Add HDMI outputs to R8A7795 device description

2017-04-04 17:04:21 +03:00

rockchip

drm/rockchip: Shutdown all crtcs when unbinding drm

2017-04-07 13:28:32 -04:00

savage

drm: Change the return type of the unload hook to void

2017-01-09 11:25:22 +01:00

selftests

drm: kselftest: fix spelling mistake: "misalinged" -> "misaligned"

2017-02-26 22:54:47 +01:00

shmobile

drm: Add acquire ctx parameter to ->page_flip(_target)

2017-03-29 09:50:38 +02:00

sis

drm: Improve drm_mm search (and fix topdown allocation) with rbtrees

2017-02-03 11:10:32 +01:00

sti

drm/sti: fix GDP size to support up to UHD resolution

2017-04-13 11:46:35 +02:00

sun4i

Merge tag 'sunxi-drm-for-4.12' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next

2017-04-20 13:19:34 +10:00

tdfx

…

tegra

dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro

2017-04-20 13:47:46 +05:30

tilcdc

drm: convert drivers to use of_graph_get_remote_node

2017-04-06 17:00:27 -04:00

tinydrm

drm/atomic: Introduce drm_atomic_helper_shutdown

2017-03-27 09:43:58 +02:00

ttm

Backmerge tag 'v4.11-rc6' into drm-next

2017-04-11 07:40:42 +10:00

udl

Merge tag 'drm-misc-next-fixes-2017-04-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-04-21 13:51:59 +10:00

vc4

Backmerge tag 'v4.11-rc6' into drm-next

2017-04-11 07:40:42 +10:00

vgem

Merge tag 'doc-4.11-images' of git://git.lwn.net/linux into drm-misc-next

2017-03-14 15:07:33 +01:00

via

drm/via: use get_user_pages_unlocked()

2017-02-28 10:00:50 +01:00

virtio

Merge tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc into drm-next

2017-04-11 07:41:10 +10:00

vmwgfx

drm/vmwgfx: Convert macro to octal representation

2017-04-21 09:25:47 -07:00

zte

drm: zte: remove leftover 'inf' from struct zx_hdmi

2017-03-22 13:44:42 +08:00

ati_pcigart.c

…

drm_agpsupport.c

drm/i810: drop device_is_agp callback

2017-01-26 10:44:43 +01:00

drm_atomic_helper.c

drm/atomic: Add connector atomic_check function, v2.

2017-04-06 17:00:27 -04:00

drm_atomic.c

drm: extract legacy framebuffer remove

2017-04-06 10:22:43 +02:00

drm_auth.c

drm/core: Use recommened kerneldoc for struct member refs

2017-01-25 16:22:42 +01:00

drm_blend.c

drm/blend: Use new atomic iterator macros.

2017-03-06 11:43:43 +01:00

drm_bridge.c

drm/bridge: Use recommened kerneldoc for struct member refs

2017-01-02 09:17:26 +01:00

drm_bufs.c

…

drm_cache.c

gpu: drm: core: Convert printk(KERN_<LEVEL> to pr_<level>

2017-02-28 14:32:19 +01:00

drm_color_mgmt.c

drm/atomic-helper: Remove legacy backoff hack from gamma_set

2017-04-06 10:22:35 +02:00

drm_connector.c

drm: Rename connector list iterator API

2017-02-28 16:16:48 +01:00

drm_context.c

…

drm_crtc_helper_internal.h

…

drm_crtc_helper.c

drm: Add acquire ctx parameter to ->set_config

2017-03-29 09:56:25 +02:00

drm_crtc_internal.h

drm: extract legacy framebuffer remove

2017-04-06 10:22:43 +02:00

drm_crtc.c

drm: Take mode_config.mutex in setcrtc ioctl

2017-04-06 22:49:50 +02:00

drm_debugfs_crc.c

Revert "drm: Don't allow interruptions when opening debugfs/crc"

2017-04-07 16:18:28 -04:00

drm_debugfs.c

drm/debugfs: Add kerneldoc

2017-03-24 09:36:06 +01:00

drm_dma.c

…

drm_dp_aux_dev.c

…

drm_dp_dual_mode_helper.c

drm: Add name for DRM_DP_DUAL_MODE_LSPCON

2017-02-23 11:06:12 -05:00

drm_dp_helper.c

drm/dp: Add missing description to parameter

2017-03-07 16:38:16 -05:00

drm_dp_mst_topology.c

drm/dp: Split drm_dp_mst_allocate_vcpi

2017-03-22 21:47:44 +01:00

drm_drv.c

Merge tag 'v4.10-rc8' into drm-next

2017-02-23 12:10:12 +10:00

drm_dumb_buffers.c

drm/kms-core: Use recommened kerneldoc for struct member refs

2017-01-25 16:30:34 +01:00

drm_edid_load.c

drm: move edid property update and add modes out of edid firmware loader

2017-02-21 15:41:24 +02:00

drm_edid.c

BackMerge tag 'v4.11-rc3' into drm-next

2017-03-23 12:05:13 +10:00

drm_encoder_slave.c

drm/kms-core: Use recommened kerneldoc for struct member refs

2017-01-25 16:30:34 +01:00

drm_encoder.c

drm: Rename connector list iterator API

2017-02-28 16:16:48 +01:00

drm_fb_cma_helper.c

drm: Add mode_config .get_format_info() hook

2017-03-22 19:45:00 +02:00

drm_fb_helper.c

drm/fb-helper: Extract _legacy kms functions

2017-04-06 10:23:06 +02:00

drm_file.c

drm/gem: Add DEFINE_DRM_GEM_FOPS

2017-03-14 14:38:34 +01:00

drm_flip_work.c

…

drm_fourcc.c

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux into drm-misc-next

2017-03-23 08:15:55 +01:00

drm_framebuffer.c

drm: extract legacy framebuffer remove

2017-04-06 10:22:43 +02:00

drm_gem_cma_helper.c

Merge tag 'doc-4.11-images' of git://git.lwn.net/linux into drm-misc-next

2017-03-14 15:07:33 +01:00

drm_gem.c

drm: Introduce drm_gem_object_{get,put}()

2017-02-28 16:16:43 +01:00

drm_global.c

drm: Update TTM initialization documentation

2016-12-30 12:52:10 +01:00

drm_hashtab.c

…

drm_info.c

locking/atomic, kref: Add kref_read()

2017-01-14 11:37:18 +01:00

drm_internal.h

drm/debugfs: Add kerneldoc

2017-03-24 09:36:06 +01:00

drm_ioc32.c

drm: document drm_ioctl.[hc]

2017-04-04 20:47:54 +02:00

drm_ioctl.c

drm: Pass CRTC ID in userspace vblank events

2017-04-04 20:59:12 +01:00

drm_irq.c

drm: Pass CRTC ID in userspace vblank events

2017-04-04 20:59:12 +01:00

drm_kms_helper_common.c

drm: Remove drmP.h include from drm_kms_helper_common.c

2017-03-09 16:18:02 +01:00

drm_legacy.h

drm: compile drm_vm.c only when needed

2017-01-06 11:03:07 +01:00

drm_lock.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>

2017-03-02 08:42:29 +01:00

drm_memory.c

…

drm_mipi_dsi.c

…

drm_mm.c

drm: Micro-optimise drm_mm_for_each_node_in_range()

2017-02-06 16:57:37 +01:00

drm_mode_config.c

drm: Rename connector list iterator API

2017-02-28 16:16:48 +01:00

drm_mode_object.c

Merge tag 'doc-4.11-images' of git://git.lwn.net/linux into drm-misc-next

2017-03-14 15:07:33 +01:00

drm_modes.c

drm: Rename drm_mode_object_get()

2017-02-28 16:14:53 +01:00

drm_modeset_helper.c

drm: Add mode_config .get_format_info() hook

2017-03-22 19:45:00 +02:00

drm_modeset_lock.c

drm: Remove drm_modeset_legacy_acquire_ctx and crtc->acquire_ctx

2017-04-05 09:26:45 +02:00

drm_of.c

drm: of: introduce drm_of_find_panel_or_bridge

2017-04-06 17:00:27 -04:00

drm_panel.c

drm/panel: Constify device node argument to of_drm_find_panel()

2017-01-04 08:30:37 +01:00

drm_pci.c

drm: Extract drm_pci.h

2017-03-09 16:18:02 +01:00

drm_plane_helper.c

drm: Add acquire ctx parameter to ->set_config

2017-03-29 09:56:25 +02:00

drm_plane.c

drm: Only take cursor locks when the cursor plane exists

2017-04-07 13:28:32 -04:00

drm_prime.c

dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro

2017-04-20 13:47:46 +05:30

drm_print.c

drm: drm_printer: add __printf validation

2017-02-26 21:43:08 +01:00

drm_probe_helper.c

drm/atomic: Acquire connection_mutex lock in drm_helper_probe_single_connector_modes, v4.

2017-04-06 21:29:23 +02:00

drm_property.c

drm: Fix get_property logic fumble

2017-04-12 18:11:32 +02:00

drm_rect.c

drm/rect: Fix formatting of example code

2016-12-30 13:35:54 +01:00

drm_scatter.c

…

drm_scdc_helper.c

drm/edid: detect SCDC support in HF-VSDB

2017-03-21 10:15:56 +02:00

drm_simple_kms_helper.c

drm: Clarify the role of plane_state argument to drm_simple update().

2017-03-30 12:02:00 -07:00

drm_sysfs.c

drm: Consolidate and document sysfs support

2017-04-04 20:47:54 +02:00

drm_trace_points.c

…

drm_trace.h

drm: Remove drm_pending_event->pid

2017-03-14 14:38:33 +01:00

drm_vm.c

drm: remove unnecessary fault wrappers

2017-02-24 17:46:55 -08:00

drm_vma_manager.c

drm: Improve drm_mm search (and fix topdown allocation) with rbtrees

2017-02-03 11:10:32 +01:00

Kconfig

drm/fb-helper: Add multi buffer support for cma fbdev

2017-02-26 22:11:37 +01:00

Makefile

drm: Add SCDC helpers

2017-03-21 10:15:39 +02:00