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Commit 9636f6db authored by Dave Gordon's avatar Dave Gordon Committed by Tvrtko Ursulin
Browse files

drm/i915/guc: add doorbell map to debugfs/i915_guc_info 



To properly verify the driver->doorbell->GuC functionality, validation
needs to know how the driver has assigned the doorbell cache lines and
registers, so make them visible through debugfs.

v2: use kernel bitmap-printing format (%pb) rather than %x.

Signed-off-by: default avatarDave Gordon <david.s.gordon@intel.com>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
parent 780f0aeb

drivers/gpu/drm/i915/i915_debugfs.c

+4 −0
Original line number Diff line number Diff line
@@ -2574,6 +2574,10 @@ static int i915_guc_info(struct seq_file *m, void *data) 


	mutex_unlock(&dev->struct_mutex);



	seq_printf(m, "Doorbell map:\n");

	seq_printf(m, "\t%*pb\n", GUC_MAX_DOORBELLS, guc.doorbell_bitmap);

	seq_printf(m, "Doorbell next cacheline: 0x%x\n\n", guc.db_cacheline);



	seq_printf(m, "GuC total action count: %llu\n", guc.action_count);

	seq_printf(m, "GuC action failure count: %u\n", guc.action_fail);

	seq_printf(m, "GuC last action command: 0x%x\n", guc.action_cmd);