drm/i915: Move debug only per-request pid tracking from request to ctx
authorChris Wilson <chris@chris-wilson.co.uk>
Mon, 15 Aug 2016 09:49:08 +0000 (10:49 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Mon, 15 Aug 2016 10:01:15 +0000 (11:01 +0100)
commitc84455b4baccce89384e45c53198c3c948bd97b6
treec13424fb336a8660295c4a04f9063ae5b6bf44eb
parentbde13ebdab0778b758b267ff9e38d6c10a42bdc3
drm/i915: Move debug only per-request pid tracking from request to ctx

Since contexts are not currently shared between userspace processes, we
have an exact correspondence between context creator and guilty batch
submitter. Therefore we can save some per-batch work by inspecting the
context->pid upon error instead. Note that we take the context's
creator's pid rather than the file's pid in order to better track fd
passed over sockets.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471254551-25805-29-git-send-email-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_debugfs.c
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/i915_gem_context.c
drivers/gpu/drm/i915/i915_gem_request.c
drivers/gpu/drm/i915/i915_gem_request.h
drivers/gpu/drm/i915/i915_gpu_error.c