[Intel-gfx] [PATCH v3 0/5] Perma-pin uC firmware and re-enable global reset

[Fernando Pacheco]

The intent is to move the GuC and HuC firmware images to the
top of the address space. This portion is inaccessible during
normal GuC operations and should be relatively safe to house
both firmware images. By making the move we can re-enable the
full gpu reset with GuC enabled.

Placing the firmware images above GUC_GGTT_TOP was discussed
previously here:
	https://patchwork.freedesktop.org/patch/273616/

v3: Bindings are only needed for xfer

v2:
The decision to rename both the uc_fw init and fini functions
made it easier to pull the bind/unbind operations out of
intel_guc_fw.* and intel_huc_fw.*. The bind/unbind will now
take place within the newly repurposed intel_uc_fw_init/fini.
All other changes should be called out in their respective patches
and should be the direct result of a review comment.

Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>

Fernando Pacheco (5):
  drm/i915/uc: Rename uC firmware init/fini functions
  drm/i915/uc: Reserve upper range of GGTT
  drm/i915/uc: Place uC firmware in upper range of GGTT
  Revert "drm/i915/guc: Disable global reset"
  drm/i915/selftests: Check that gpu reset is usable from atomic context

 drivers/gpu/drm/i915/i915_gem_gtt.c           |  25 ++--
 drivers/gpu/drm/i915/i915_gem_gtt.h           |   1 +
 drivers/gpu/drm/i915/i915_reset.c             |   3 -
 drivers/gpu/drm/i915/intel_guc.c              |  41 ++++++-
 drivers/gpu/drm/i915/intel_guc.h              |   2 +
 drivers/gpu/drm/i915/intel_guc_fw.c           |  20 ++--
 drivers/gpu/drm/i915/intel_huc.c              |  74 +++++++++---
 drivers/gpu/drm/i915/intel_huc.h              |   6 +-
 drivers/gpu/drm/i915/intel_huc_fw.c           |  49 +++++---
 drivers/gpu/drm/i915/intel_uc.c               |  23 +++-
 drivers/gpu/drm/i915/intel_uc_fw.c            | 107 +++++++++++++-----
 drivers/gpu/drm/i915/intel_uc_fw.h            |  10 +-
 .../gpu/drm/i915/selftests/intel_hangcheck.c  |   6 +-
 13 files changed, 267 insertions(+), 100 deletions(-)

-- 
2.21.0