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path: root/drivers/gpu/drm/xe/xe_debugfs.c
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Diffstat (limited to 'drivers/gpu/drm/xe/xe_debugfs.c')
-rw-r--r--drivers/gpu/drm/xe/xe_debugfs.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_debugfs.c b/drivers/gpu/drm/xe/xe_debugfs.c
new file mode 100644
index 0000000000..c56fd7d59f
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_debugfs.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#include "xe_debugfs.h"
+
+#include <linux/string_helpers.h>
+
+#include <drm/drm_debugfs.h>
+
+#include "xe_bo.h"
+#include "xe_device.h"
+#include "xe_gt_debugfs.h"
+#include "xe_step.h"
+
+#ifdef CONFIG_DRM_XE_DEBUG
+#include "xe_bo_evict.h"
+#include "xe_migrate.h"
+#include "xe_vm.h"
+#endif
+
+#ifdef CONFIG_FAULT_INJECTION
+#include <linux/fault-inject.h> /* XXX: fault-inject.h is broken */
+DECLARE_FAULT_ATTR(gt_reset_failure);
+#endif
+
+static struct xe_device *node_to_xe(struct drm_info_node *node)
+{
+ return to_xe_device(node->minor->dev);
+}
+
+static int info(struct seq_file *m, void *data)
+{
+ struct xe_device *xe = node_to_xe(m->private);
+ struct drm_printer p = drm_seq_file_printer(m);
+ struct xe_gt *gt;
+ u8 id;
+
+ drm_printf(&p, "graphics_verx100 %d\n", xe->info.graphics_verx100);
+ drm_printf(&p, "media_verx100 %d\n", xe->info.media_verx100);
+ drm_printf(&p, "stepping G:%s M:%s D:%s B:%s\n",
+ xe_step_name(xe->info.step.graphics),
+ xe_step_name(xe->info.step.media),
+ xe_step_name(xe->info.step.display),
+ xe_step_name(xe->info.step.basedie));
+ drm_printf(&p, "is_dgfx %s\n", str_yes_no(xe->info.is_dgfx));
+ drm_printf(&p, "platform %d\n", xe->info.platform);
+ drm_printf(&p, "subplatform %d\n",
+ xe->info.subplatform > XE_SUBPLATFORM_NONE ? xe->info.subplatform : 0);
+ drm_printf(&p, "devid 0x%x\n", xe->info.devid);
+ drm_printf(&p, "revid %d\n", xe->info.revid);
+ drm_printf(&p, "tile_count %d\n", xe->info.tile_count);
+ drm_printf(&p, "vm_max_level %d\n", xe->info.vm_max_level);
+ drm_printf(&p, "force_execlist %s\n", str_yes_no(xe->info.force_execlist));
+ drm_printf(&p, "has_flat_ccs %s\n", str_yes_no(xe->info.has_flat_ccs));
+ drm_printf(&p, "has_usm %s\n", str_yes_no(xe->info.has_usm));
+ for_each_gt(gt, xe, id) {
+ drm_printf(&p, "gt%d force wake %d\n", id,
+ xe_force_wake_ref(gt_to_fw(gt), XE_FW_GT));
+ drm_printf(&p, "gt%d engine_mask 0x%llx\n", id,
+ gt->info.engine_mask);
+ }
+
+ return 0;
+}
+
+static const struct drm_info_list debugfs_list[] = {
+ {"info", info, 0},
+};
+
+static int forcewake_open(struct inode *inode, struct file *file)
+{
+ struct xe_device *xe = inode->i_private;
+ struct xe_gt *gt;
+ u8 id;
+
+ xe_device_mem_access_get(xe);
+
+ for_each_gt(gt, xe, id)
+ XE_WARN_ON(xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL));
+
+ return 0;
+}
+
+static int forcewake_release(struct inode *inode, struct file *file)
+{
+ struct xe_device *xe = inode->i_private;
+ struct xe_gt *gt;
+ u8 id;
+
+ for_each_gt(gt, xe, id)
+ XE_WARN_ON(xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL));
+
+ xe_device_mem_access_put(xe);
+
+ return 0;
+}
+
+static const struct file_operations forcewake_all_fops = {
+ .owner = THIS_MODULE,
+ .open = forcewake_open,
+ .release = forcewake_release,
+};
+
+void xe_debugfs_register(struct xe_device *xe)
+{
+ struct ttm_device *bdev = &xe->ttm;
+ struct drm_minor *minor = xe->drm.primary;
+ struct dentry *root = minor->debugfs_root;
+ struct ttm_resource_manager *man;
+ struct xe_gt *gt;
+ u32 mem_type;
+ u8 id;
+
+ drm_debugfs_create_files(debugfs_list,
+ ARRAY_SIZE(debugfs_list),
+ root, minor);
+
+ debugfs_create_file("forcewake_all", 0400, root, xe,
+ &forcewake_all_fops);
+
+ for (mem_type = XE_PL_VRAM0; mem_type <= XE_PL_VRAM1; ++mem_type) {
+ man = ttm_manager_type(bdev, mem_type);
+
+ if (man) {
+ char name[16];
+
+ sprintf(name, "vram%d_mm", mem_type - XE_PL_VRAM0);
+ ttm_resource_manager_create_debugfs(man, root, name);
+ }
+ }
+
+ man = ttm_manager_type(bdev, XE_PL_TT);
+ ttm_resource_manager_create_debugfs(man, root, "gtt_mm");
+
+ man = ttm_manager_type(bdev, XE_PL_STOLEN);
+ if (man)
+ ttm_resource_manager_create_debugfs(man, root, "stolen_mm");
+
+ for_each_gt(gt, xe, id)
+ xe_gt_debugfs_register(gt);
+
+#ifdef CONFIG_FAULT_INJECTION
+ fault_create_debugfs_attr("fail_gt_reset", root, &gt_reset_failure);
+#endif
+
+}