// SPDX-License-Identifier: MIT
/*
* Copyright © 2022 Intel Corporation
*/
#include "xe_guc_debugfs.h"
#include <drm/drm_debugfs.h>
#include <drm/drm_managed.h>
#include "xe_device.h"
#include "xe_gt.h"
#include "xe_guc.h"
#include "xe_guc_ct.h"
#include "xe_guc_log.h"
#include "xe_guc_pc.h"
#include "xe_macros.h"
#include "xe_pm.h"
/*
* guc_debugfs_show - A show callback for struct drm_info_list
* @ m : the & seq_file
* @ data : data used by the drm debugfs helpers
*
* This callback can be used in struct drm_info_list to describe debugfs
* files that are & xe_guc specific in similar way how we handle & xe_gt
* specific files using & xe_gt_debugfs_simple_show .
*
* It is assumed that those debugfs files will be created on directory entry
* which grandparent struct dentry d_inode - > i_private points to & xe_gt .
*
* / sys / kernel / debug / dri / 0 /
* ├ ─ ─ gt0 # dent - > d_parent - > d_parent ( d_inode - > i_private = = gt )
* │ ├ ─ ─ uc # dent - > d_parent
* │ │ ├ ─ ─ guc_info # dent
* │ │ ├ ─ ─ guc_ . . .
*
* This function assumes that & m - > private will be set to the & struct
* drm_info_node corresponding to the instance of the info on a given & struct
* drm_minor ( see struct drm_info_list . show for details ) .
*
* This function also assumes that struct drm_info_list . data will point to the
* function code that will actually print a file content : :
*
* int ( * print ) ( struct xe_guc * , struct drm_printer * )
*
* Example : :
*
* int foo ( struct xe_guc * guc , struct drm_printer * p )
* {
* drm_printf ( p , " enabled % d \ n " , guc - > submission_state . enabled ) ;
* return 0 ;
* }
*
* static const struct drm_info_list bar [ ] = {
* { name = " foo " , . show = guc_debugfs_show , . data = foo } ,
* } ;
*
* parent = debugfs_create_dir ( " uc " , gtdir ) ;
* drm_debugfs_create_files ( bar , ARRAY_SIZE ( bar ) , parent , minor ) ;
*
* Return : 0 on success or a negative error code on failure .
*/
static int guc_debugfs_show(struct seq_file *m, void *data)
{
struct drm_printer p = drm_seq_file_printer(m);
struct drm_info_node *node = m->private ;
struct dentry *parent = node->dent->d_parent;
struct dentry *grandparent = parent->d_parent;
struct xe_gt *gt = grandparent->d_inode->i_private;
struct xe_device *xe = gt_to_xe(gt);
int (*print)(struct xe_guc *, struct drm_printer *) = node->info_ent->data;
int ret;
xe_pm_runtime_get(xe);
ret = print(>->uc.guc, &p);
xe_pm_runtime_put(xe);
return ret;
}
static int guc_log(struct xe_guc *guc, struct drm_printer *p)
{
xe_guc_log_print(&guc->log, p);
return 0 ;
}
static int guc_log_dmesg(struct xe_guc *guc, struct drm_printer *p)
{
xe_guc_log_print_dmesg(&guc->log);
return 0 ;
}
static int guc_ctb(struct xe_guc *guc, struct drm_printer *p)
{
xe_guc_ct_print(&guc->ct, p, true );
return 0 ;
}
static int guc_pc(struct xe_guc *guc, struct drm_printer *p)
{
xe_guc_pc_print(&guc->pc, p);
return 0 ;
}
/*
* only for GuC debugfs files which can be safely used on the VF as well :
* - without access to the GuC privileged registers
* - without access to the PF specific GuC objects
*/
static const struct drm_info_list vf_safe_debugfs_list[] = {
{ "guc_info" , .show = guc_debugfs_show, .data = xe_guc_print_info },
{ "guc_ctb" , .show = guc_debugfs_show, .data = guc_ctb },
};
/* For GuC debugfs files that require the SLPC support */
static const struct drm_info_list slpc_debugfs_list[] = {
{ "guc_pc" , .show = guc_debugfs_show, .data = guc_pc },
};
/* everything else should be added here */
static const struct drm_info_list pf_only_debugfs_list[] = {
{ "guc_log" , .show = guc_debugfs_show, .data = guc_log },
{ "guc_log_dmesg" , .show = guc_debugfs_show, .data = guc_log_dmesg },
};
void xe_guc_debugfs_register(struct xe_guc *guc, struct dentry *parent)
{
struct xe_device *xe = guc_to_xe(guc);
struct drm_minor *minor = xe->drm.primary;
drm_debugfs_create_files(vf_safe_debugfs_list,
ARRAY_SIZE(vf_safe_debugfs_list),
parent, minor);
if (!IS_SRIOV_VF(xe)) {
drm_debugfs_create_files(pf_only_debugfs_list,
ARRAY_SIZE(pf_only_debugfs_list),
parent, minor);
if (!xe->info.skip_guc_pc)
drm_debugfs_create_files(slpc_debugfs_list,
ARRAY_SIZE(slpc_debugfs_list),
parent, minor);
}
}
Messung V0.5 in Prozent C=94 H=100 G=96
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-09-28)
¤
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