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@xxxxxxxxx> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> --- drivers/gpu/drm/i915/i915_debugfs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index e4f2c55..6efc8b1 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); -- 1.9.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
