cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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intel_guc_debugfs.c (2223B)

      1// SPDX-License-Identifier: MIT
      2/*
      3 * Copyright © 2020 Intel Corporation
      4 */
      5
      6#include <drm/drm_print.h>
      7
      8#include "gt/intel_gt_debugfs.h"
      9#include "gt/uc/intel_guc_ads.h"
     10#include "gt/uc/intel_guc_ct.h"
     11#include "gt/uc/intel_guc_slpc.h"
     12#include "gt/uc/intel_guc_submission.h"
     13#include "intel_guc.h"
     14#include "intel_guc_debugfs.h"
     15#include "intel_guc_log_debugfs.h"
     16
     17static int guc_info_show(struct seq_file *m, void *data)
     18{
     19	struct intel_guc *guc = m->private;
     20	struct drm_printer p = drm_seq_file_printer(m);
     21
     22	if (!intel_guc_is_supported(guc))
     23		return -ENODEV;
     24
     25	intel_guc_load_status(guc, &p);
     26	drm_puts(&p, "\n");
     27	intel_guc_log_info(&guc->log, &p);
     28
     29	if (!intel_guc_submission_is_used(guc))
     30		return 0;
     31
     32	intel_guc_ct_print_info(&guc->ct, &p);
     33	intel_guc_submission_print_info(guc, &p);
     34	intel_guc_ads_print_policy_info(guc, &p);
     35
     36	return 0;
     37}
     38DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_info);
     39
     40static int guc_registered_contexts_show(struct seq_file *m, void *data)
     41{
     42	struct intel_guc *guc = m->private;
     43	struct drm_printer p = drm_seq_file_printer(m);
     44
     45	if (!intel_guc_submission_is_used(guc))
     46		return -ENODEV;
     47
     48	intel_guc_submission_print_context_info(guc, &p);
     49
     50	return 0;
     51}
     52DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_registered_contexts);
     53
     54static int guc_slpc_info_show(struct seq_file *m, void *unused)
     55{
     56	struct intel_guc *guc = m->private;
     57	struct intel_guc_slpc *slpc = &guc->slpc;
     58	struct drm_printer p = drm_seq_file_printer(m);
     59
     60	if (!intel_guc_slpc_is_used(guc))
     61		return -ENODEV;
     62
     63	return intel_guc_slpc_print_info(slpc, &p);
     64}
     65DEFINE_INTEL_GT_DEBUGFS_ATTRIBUTE(guc_slpc_info);
     66
     67static bool intel_eval_slpc_support(void *data)
     68{
     69	struct intel_guc *guc = (struct intel_guc *)data;
     70
     71	return intel_guc_slpc_is_used(guc);
     72}
     73
     74void intel_guc_debugfs_register(struct intel_guc *guc, struct dentry *root)
     75{
     76	static const struct intel_gt_debugfs_file files[] = {
     77		{ "guc_info", &guc_info_fops, NULL },
     78		{ "guc_registered_contexts", &guc_registered_contexts_fops, NULL },
     79		{ "guc_slpc_info", &guc_slpc_info_fops, &intel_eval_slpc_support},
     80	};
     81
     82	if (!intel_guc_is_supported(guc))
     83		return;
     84
     85	intel_gt_debugfs_register_files(root, files, ARRAY_SIZE(files), guc);
     86	intel_guc_log_debugfs_register(&guc->log, root);
     87}