diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_debugfs.c | 148 |
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, >_reset_failure); +#endif + +} |