]> git.karo-electronics.de Git - karo-tx-linux.git/commit
drm/i915: Allow userspace to request no-error-capture upon GPU hangs
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 4 Jul 2016 07:08:39 +0000 (08:08 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Mon, 4 Jul 2016 07:18:24 +0000 (08:18 +0100)
commitbc3d674462e5df5f2b33adbfcaad9edff8b827f4
tree460d103dfe6aff22a478b05644e84d44814ae21d
parentba6e0418064de8c4dee914a5eb8574affe19e6f5
drm/i915: Allow userspace to request no-error-capture upon GPU hangs

igt likes to inject GPU hangs into its command streams. However, as we
expect these hangs, we don't actually want them recorded in the dmesg
output or stored in the i915_error_state (usually). To accommodate this
allow userspace to set a flag on the context that any hang emanating
from that context will not be recorded. We still do the error capture
(otherwise how do we find the guilty context and know its intent?) as
part of the reason for random GPU hang injection is to exercise the race
conditions between the error capture and normal execution.

v2: Split out the request->ringbuf error capture changes.
v3: Move the flag defines next to the intel_context->flags definition

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Dave Gordon <david.s.gordon@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1467616119-4093-9-git-send-email-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/i915_gem_context.c
drivers/gpu/drm/i915/i915_gpu_error.c
include/uapi/drm/i915_drm.h