[Intel-gfx] [PATCH v2 0/2] Reset GuC and retry on fw load failure

Arun Siluvery arun.siluvery at linux.intel.com
Tue Mar 8 11:38:16 UTC 2016

Below changes add a mechanism to reset GuC and retry fw loading if the
initial load fails. There are cetain HW issues because of which fw load can
fail and the WA is to retry after resetting GuC.

A patch required for engine reset is partially reused as we use that
function to reset guc.

v2: used updated engine reset helper function.

Arun Siluvery (2):
  drm/i915: Add function to reset an engine domain
  drm/i915/guc: Reset GuC and retry on firmware load failure

 drivers/gpu/drm/i915/i915_drv.h         |  1 +
 drivers/gpu/drm/i915/i915_guc_reg.h     |  1 +
 drivers/gpu/drm/i915/i915_reg.h         |  1 +
 drivers/gpu/drm/i915/intel_guc_loader.c | 49 +++++++++++++++++++++++++++++++--
 drivers/gpu/drm/i915/intel_uncore.c     | 34 +++++++++++++++++++++++
 5 files changed, 84 insertions(+), 2 deletions(-)


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