From a8b9370fc79c1ec043194452a455b0b590be609a Mon Sep 17 00:00:00 2001 From: Oscar Mateo Date: Wed, 10 May 2017 15:04:51 +0000 Subject: [PATCH] drm/i915/guc: Dump the GuC stage descriptor pool in debugfs We are missing pieces of information that could be useful for GuC debugging. v2: Reuse some code (Joonas) Cc: Daniele Ceraolo Spurio Reviewed-by: Joonas Lahtinen Signed-off-by: Oscar Mateo [Joonas: Removed extra newline and s/uint32_t/u32/ for checkpatch.pl] Signed-off-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1494428691-20672-1-git-send-email-oscar.mateo@intel.com --- drivers/gpu/drm/i915/i915_debugfs.c | 76 +++++++++++++++++++++++++++-- 1 file changed, 71 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 78303379a200..bd9abef40c66 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2494,22 +2494,33 @@ static void i915_guc_client_info(struct seq_file *m, seq_printf(m, "\tTotal: %llu\n", tot); } -static int i915_guc_info(struct seq_file *m, void *data) +static bool check_guc_submission(struct seq_file *m) { struct drm_i915_private *dev_priv = node_to_i915(m->private); const struct intel_guc *guc = &dev_priv->guc; - struct intel_engine_cs *engine; - enum intel_engine_id id; - u64 total; if (!guc->execbuf_client) { seq_printf(m, "GuC submission %s\n", HAS_GUC_SCHED(dev_priv) ? "disabled" : "not supported"); - return 0; + return false; } + return true; +} + +static int i915_guc_info(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + const struct intel_guc *guc = &dev_priv->guc; + struct intel_engine_cs *engine; + enum intel_engine_id id; + u64 total; + + if (!check_guc_submission(m)) + return 0; + seq_printf(m, "Doorbell map:\n"); seq_printf(m, "\t%*pb\n", GUC_NUM_DOORBELLS, guc->doorbell_bitmap); seq_printf(m, "Doorbell next cacheline: 0x%x\n\n", guc->db_cacheline); @@ -2540,6 +2551,60 @@ static int i915_guc_info(struct seq_file *m, void *data) return 0; } +static int i915_guc_stage_pool(struct seq_file *m, void *data) +{ + struct drm_i915_private *dev_priv = node_to_i915(m->private); + const struct intel_guc *guc = &dev_priv->guc; + struct guc_stage_desc *desc = guc->stage_desc_pool_vaddr; + struct i915_guc_client *client = guc->execbuf_client; + unsigned int tmp; + int index; + + if (!check_guc_submission(m)) + return 0; + + for (index = 0; index < GUC_MAX_STAGE_DESCRIPTORS; index++, desc++) { + struct intel_engine_cs *engine; + + if (!(desc->attribute & GUC_STAGE_DESC_ATTR_ACTIVE)) + continue; + + seq_printf(m, "GuC stage descriptor %u:\n", index); + seq_printf(m, "\tIndex: %u\n", desc->stage_id); + seq_printf(m, "\tAttribute: 0x%x\n", desc->attribute); + seq_printf(m, "\tPriority: %d\n", desc->priority); + seq_printf(m, "\tDoorbell id: %d\n", desc->db_id); + seq_printf(m, "\tEngines used: 0x%x\n", + desc->engines_used); + seq_printf(m, "\tDoorbell trigger phy: 0x%llx, cpu: 0x%llx, uK: 0x%x\n", + desc->db_trigger_phy, + desc->db_trigger_cpu, + desc->db_trigger_uk); + seq_printf(m, "\tProcess descriptor: 0x%x\n", + desc->process_desc); + seq_printf(m, "\tWorkqueue adddress: 0x%x, size: 0x%x\n", + desc->wq_addr, desc->wq_size); + seq_putc(m, '\n'); + + for_each_engine_masked(engine, dev_priv, client->engines, tmp) { + u32 guc_engine_id = engine->guc_id; + struct guc_execlist_context *lrc = + &desc->lrc[guc_engine_id]; + + seq_printf(m, "\t%s LRC:\n", engine->name); + seq_printf(m, "\t\tContext desc: 0x%x\n", + lrc->context_desc); + seq_printf(m, "\t\tContext id: 0x%x\n", lrc->context_id); + seq_printf(m, "\t\tLRCA: 0x%x\n", lrc->ring_lrca); + seq_printf(m, "\t\tRing begin: 0x%x\n", lrc->ring_begin); + seq_printf(m, "\t\tRing end: 0x%x\n", lrc->ring_end); + seq_putc(m, '\n'); + } + } + + return 0; +} + static int i915_guc_log_dump(struct seq_file *m, void *data) { struct drm_i915_private *dev_priv = node_to_i915(m->private); @@ -4746,6 +4811,7 @@ static const struct drm_info_list i915_debugfs_list[] = { {"i915_guc_info", i915_guc_info, 0}, {"i915_guc_load_status", i915_guc_load_status_info, 0}, {"i915_guc_log_dump", i915_guc_log_dump, 0}, + {"i915_guc_stage_pool", i915_guc_stage_pool, 0}, {"i915_huc_load_status", i915_huc_load_status_info, 0}, {"i915_frequency_info", i915_frequency_info, 0}, {"i915_hangcheck_info", i915_hangcheck_info, 0}, -- 2.20.1