diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 39 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uc.c | 25 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uc.h | 3 |
3 files changed, 51 insertions, 16 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index c51c56af0013..0615237d1cea 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2586,27 +2586,37 @@ static int i915_guc_stage_pool(struct seq_file *m, void *data) static int i915_guc_log_dump(struct seq_file *m, void *data) { - struct drm_i915_private *dev_priv = node_to_i915(m->private); - struct drm_i915_gem_object *obj; - int i = 0, pg; - - if (!dev_priv->guc.log.vma) - return 0; + struct drm_info_node *node = m->private; + struct drm_i915_private *dev_priv = node_to_i915(node); + bool dump_load_err = !!node->info_ent->data; + struct drm_i915_gem_object *obj = NULL; + u32 *log; + int i = 0; - obj = dev_priv->guc.log.vma->obj; - for (pg = 0; pg < obj->base.size / PAGE_SIZE; pg++) { - u32 *log = kmap_atomic(i915_gem_object_get_page(obj, pg)); + if (dump_load_err) + obj = dev_priv->guc.load_err_log; + else if (dev_priv->guc.log.vma) + obj = dev_priv->guc.log.vma->obj; - for (i = 0; i < PAGE_SIZE / sizeof(u32); i += 4) - seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n", - *(log + i), *(log + i + 1), - *(log + i + 2), *(log + i + 3)); + if (!obj) + return 0; - kunmap_atomic(log); + log = i915_gem_object_pin_map(obj, I915_MAP_WC); + if (IS_ERR(log)) { + DRM_DEBUG("Failed to pin object\n"); + seq_puts(m, "(log data unaccessible)\n"); + return PTR_ERR(log); } + for (i = 0; i < obj->base.size / sizeof(u32); i += 4) + seq_printf(m, "0x%08x 0x%08x 0x%08x 0x%08x\n", + *(log + i), *(log + i + 1), + *(log + i + 2), *(log + i + 3)); + seq_putc(m, '\n'); + i915_gem_object_unpin_map(obj); + return 0; } @@ -4791,6 +4801,7 @@ 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_load_err_log_dump", i915_guc_log_dump, 0, (void *)1}, {"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}, diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c index d17029c57433..7a7b07de28a3 100644 --- a/drivers/gpu/drm/i915/intel_uc.c +++ b/drivers/gpu/drm/i915/intel_uc.c @@ -288,6 +288,23 @@ static void guc_init_send_regs(struct intel_guc *guc) guc->send_regs.fw_domains = fw_domains; } +static void guc_capture_load_err_log(struct intel_guc *guc) +{ + if (!guc->log.vma || i915.guc_log_level < 0) + return; + + if (!guc->load_err_log) + guc->load_err_log = i915_gem_object_get(guc->log.vma->obj); + + return; +} + +static void guc_free_load_err_log(struct intel_guc *guc) +{ + if (guc->load_err_log) + i915_gem_object_put(guc->load_err_log); +} + static int guc_enable_communication(struct intel_guc *guc) { struct drm_i915_private *dev_priv = guc_to_i915(guc); @@ -367,11 +384,11 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv) /* Did we succeded or run out of retries? */ if (ret) - goto err_submission; + goto err_log_capture; ret = guc_enable_communication(guc); if (ret) - goto err_submission; + goto err_log_capture; intel_guc_auth_huc(dev_priv); if (i915.enable_guc_submission) { @@ -397,6 +414,8 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv) err_interrupts: guc_disable_communication(guc); gen9_disable_guc_interrupts(dev_priv); +err_log_capture: + guc_capture_load_err_log(guc); err_submission: if (i915.enable_guc_submission) i915_guc_submission_fini(dev_priv); @@ -422,6 +441,8 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv) if (!i915.enable_guc_loading) return; + guc_free_load_err_log(&dev_priv->guc); + if (i915.enable_guc_submission) i915_guc_submission_disable(dev_priv); diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h index fb1d640a1b04..69daf4c01cd0 100644 --- a/drivers/gpu/drm/i915/intel_uc.h +++ b/drivers/gpu/drm/i915/intel_uc.h @@ -175,6 +175,9 @@ struct intel_guc { struct intel_guc_log log; struct intel_guc_ct ct; + /* Log snapshot if GuC errors during load */ + struct drm_i915_gem_object *load_err_log; + /* intel_guc_recv interrupt related state */ bool interrupts_enabled; |