diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_debugfs.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_debugfs.c b/drivers/gpu/drm/xe/xe_gt_debugfs.c new file mode 100644 index 000000000000..cd1888784141 --- /dev/null +++ b/drivers/gpu/drm/xe/xe_gt_debugfs.c @@ -0,0 +1,160 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2022 Intel Corporation + */ + +#include <drm/drm_debugfs.h> +#include <drm/drm_managed.h> + +#include "xe_device.h" +#include "xe_force_wake.h" +#include "xe_gt.h" +#include "xe_gt_debugfs.h" +#include "xe_gt_mcr.h" +#include "xe_gt_pagefault.h" +#include "xe_gt_topology.h" +#include "xe_hw_engine.h" +#include "xe_macros.h" +#include "xe_uc_debugfs.h" + +static struct xe_gt *node_to_gt(struct drm_info_node *node) +{ + return node->info_ent->data; +} + +static int hw_engines(struct seq_file *m, void *data) +{ + struct xe_gt *gt = node_to_gt(m->private); + struct xe_device *xe = gt_to_xe(gt); + struct drm_printer p = drm_seq_file_printer(m); + struct xe_hw_engine *hwe; + enum xe_hw_engine_id id; + int err; + + xe_device_mem_access_get(xe); + err = xe_force_wake_get(gt_to_fw(gt), XE_FORCEWAKE_ALL); + if (err) { + xe_device_mem_access_put(xe); + return err; + } + + for_each_hw_engine(hwe, gt, id) + xe_hw_engine_print_state(hwe, &p); + + xe_device_mem_access_put(xe); + err = xe_force_wake_put(gt_to_fw(gt), XE_FORCEWAKE_ALL); + if (err) + return err; + + return 0; +} + +static int force_reset(struct seq_file *m, void *data) +{ + struct xe_gt *gt = node_to_gt(m->private); + + xe_gt_reset_async(gt); + + return 0; +} + +static int sa_info(struct seq_file *m, void *data) +{ + struct xe_gt *gt = node_to_gt(m->private); + struct drm_printer p = drm_seq_file_printer(m); + + drm_suballoc_dump_debug_info(>->kernel_bb_pool.base, &p, + gt->kernel_bb_pool.gpu_addr); + + return 0; +} + +static int topology(struct seq_file *m, void *data) +{ + struct xe_gt *gt = node_to_gt(m->private); + struct drm_printer p = drm_seq_file_printer(m); + + xe_gt_topology_dump(gt, &p); + + return 0; +} + +static int steering(struct seq_file *m, void *data) +{ + struct xe_gt *gt = node_to_gt(m->private); + struct drm_printer p = drm_seq_file_printer(m); + + xe_gt_mcr_steering_dump(gt, &p); + + return 0; +} + +#ifdef CONFIG_DRM_XE_DEBUG +static int invalidate_tlb(struct seq_file *m, void *data) +{ + struct xe_gt *gt = node_to_gt(m->private); + int seqno; + int ret = 0; + + seqno = xe_gt_tlb_invalidation(gt); + XE_WARN_ON(seqno < 0); + if (seqno > 0) + ret = xe_gt_tlb_invalidation_wait(gt, seqno); + XE_WARN_ON(ret < 0); + + return 0; +} +#endif + +static const struct drm_info_list debugfs_list[] = { + {"hw_engines", hw_engines, 0}, + {"force_reset", force_reset, 0}, + {"sa_info", sa_info, 0}, + {"topology", topology, 0}, + {"steering", steering, 0}, +#ifdef CONFIG_DRM_XE_DEBUG + {"invalidate_tlb", invalidate_tlb, 0}, +#endif +}; + +void xe_gt_debugfs_register(struct xe_gt *gt) +{ + struct drm_minor *minor = gt_to_xe(gt)->drm.primary; + struct dentry *root; + struct drm_info_list *local; + char name[8]; + int i; + + XE_BUG_ON(!minor->debugfs_root); + + sprintf(name, "gt%d", gt->info.id); + root = debugfs_create_dir(name, minor->debugfs_root); + if (IS_ERR(root)) { + XE_WARN_ON("Create GT directory failed"); + return; + } + + /* + * Allocate local copy as we need to pass in the GT to the debugfs + * entry and drm_debugfs_create_files just references the drm_info_list + * passed in (e.g. can't define this on the stack). + */ +#define DEBUGFS_SIZE ARRAY_SIZE(debugfs_list) * sizeof(struct drm_info_list) + local = drmm_kmalloc(>_to_xe(gt)->drm, DEBUGFS_SIZE, GFP_KERNEL); + if (!local) { + XE_WARN_ON("Couldn't allocate memory"); + return; + } + + memcpy(local, debugfs_list, DEBUGFS_SIZE); +#undef DEBUGFS_SIZE + + for (i = 0; i < ARRAY_SIZE(debugfs_list); ++i) + local[i].data = gt; + + drm_debugfs_create_files(local, + ARRAY_SIZE(debugfs_list), + root, minor); + + xe_uc_debugfs_register(>->uc, root); +} |