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authorDave Gordon <david.s.gordon@intel.com>2016-06-13 17:57:28 +0100
committerTvrtko Ursulin <tvrtko.ursulin@intel.com>2016-06-14 15:04:06 +0100
commit9636f6dbba1dbded9741b2c21fb751d266016681 (patch)
treef281aa99226c7ce897e9830339d79a989f1d689c /drivers/gpu/drm/i915/i915_debugfs.c
parent780f0aebda2e2f9df4cc5ddda411a724db7a1dcc (diff)
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>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
-rw-r--r--drivers/gpu/drm/i915/i915_debugfs.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index e25cab43df50..68b39568089f 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -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);