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// 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);
}
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