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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: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
This commit is contained in:
Dave Gordon 2016-06-13 17:57:28 +01:00 committed by Tvrtko Ursulin
parent 780f0aebda
commit 9636f6dbba
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/i915_debugfs.c
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@ -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);