From: Dave Gordon Date: Mon, 13 Jun 2016 16:57:28 +0000 (+0100) Subject: drm/i915/guc: add doorbell map to debugfs/i915_guc_info X-Git-Tag: v5.15~13124^2~33^2~25 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=9636f6dbba1dbded9741b2c21fb751d266016681;p=mirror_ubuntu-kernels.git 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 Reviewed-by: Tvrtko Ursulin Signed-off-by: Tvrtko Ursulin --- 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);