drm/i915: The return of i915_gpu_info to debugfs
authorChris Wilson <chris@chris-wilson.co.uk>
Tue, 14 Feb 2017 16:46:11 +0000 (16:46 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Tue, 14 Feb 2017 22:30:22 +0000 (22:30 +0000)
commit5a4c6f1b1b2d91c5252cedf1c7b68a894c3f117e
tree7b94abdac7366c01a3f335037bf4b3fcad87ed58
parent65300b1f6e04a905200ac5943cb9bfdadc3651a2
drm/i915: The return of i915_gpu_info to debugfs

Once upon a time before we had automated GPU state capture upon hangs,
we had intel_gpu_dump. Now we come almost full circle and reinstate that
view of the current GPU queues and registers by using the error capture
facility to snapshot the GPU state when debugfs/.../i915_gpu_info is
opened - which should provided useful debugging to both the error
capture routines (without having to cause a hang and avoid the error
state being eaten by igt) and generally.

v2: Rename drm_i915_error_state to i915_gpu_state to alleviate some name
collisions between the error state dump and inspecting the gpu state.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170214164611.11381-1-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_debugfs.c
drivers/gpu/drm/i915/i915_drv.c
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/i915_gpu_error.c
drivers/gpu/drm/i915/i915_sysfs.c
drivers/gpu/drm/i915/intel_display.c