72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/**
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* Copyright (C) ARM Limited 2012-2015. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include "gator_events_mali_common.h"
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extern int gator_mali_create_file_system(const char *mali_name, const char *event_name, struct super_block *sb, struct dentry *root, struct mali_counter *counter, unsigned long *event)
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{
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int err;
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char buf[255];
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struct dentry *dir;
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/* If the counter name is empty ignore it */
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if (strlen(event_name) != 0) {
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/* Set up the filesystem entry for this event. */
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if (mali_name == NULL)
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snprintf(buf, sizeof(buf), "ARM_Mali-%s", event_name);
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else
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snprintf(buf, sizeof(buf), "ARM_Mali-%s_%s", mali_name, event_name);
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dir = gatorfs_mkdir(sb, root, buf);
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if (dir == NULL) {
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pr_err("gator: %s: error creating file system for: %s (%s)\n", mali_name, event_name, buf);
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return -1;
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}
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err = gatorfs_create_ulong(sb, dir, "enabled", &counter->enabled);
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if (err != 0) {
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pr_err("gator: %s: error calling gatorfs_create_ulong for: %s (%s)\n", mali_name, event_name, buf);
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return -1;
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}
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err = gatorfs_create_ro_ulong(sb, dir, "key", &counter->key);
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if (err != 0) {
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pr_err("gator: %s: error calling gatorfs_create_ro_ulong for: %s (%s)\n", mali_name, event_name, buf);
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return -1;
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}
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if (counter->cores != -1) {
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err = gatorfs_create_ro_ulong(sb, dir, "cores", &counter->cores);
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if (err != 0) {
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pr_err("gator: %s: error calling gatorfs_create_ro_ulong for: %s (%s)\n", mali_name, event_name, buf);
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return -1;
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}
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}
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if (event != NULL) {
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err = gatorfs_create_ulong(sb, dir, "event", event);
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if (err != 0) {
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pr_err("gator: %s: error calling gatorfs_create_ro_ulong for: %s (%s)\n", mali_name, event_name, buf);
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return -1;
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}
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}
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}
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return 0;
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}
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extern void gator_mali_initialise_counters(struct mali_counter counters[], unsigned int n_counters)
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{
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unsigned int cnt;
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for (cnt = 0; cnt < n_counters; cnt++) {
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struct mali_counter *counter = &counters[cnt];
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counter->key = gator_events_get_key();
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counter->enabled = 0;
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counter->cores = -1;
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}
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}
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