cregit-Linux how code gets into the kernel

Release 4.16 drivers/gpu/host1x/debug.c

/*
 * Copyright (C) 2010 Google, Inc.
 * Author: Erik Gilling <konkers@android.com>
 *
 * Copyright (C) 2011-2013 NVIDIA Corporation
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/uaccess.h>

#include <linux/io.h>

#include "dev.h"
#include "debug.h"
#include "channel.h"


unsigned int host1x_debug_trace_cmdbuf;


static pid_t host1x_debug_force_timeout_pid;

static u32 host1x_debug_force_timeout_val;

static u32 host1x_debug_force_timeout_channel;


void host1x_debug_output(struct output *o, const char *fmt, ...) { va_list args; int len; va_start(args, fmt); len = vsnprintf(o->buf, sizeof(o->buf), fmt, args); va_end(args); o->fn(o->ctx, o->buf, len, false); }

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Terje Bergstrom6793.06%150.00%
Mikko Perttunen56.94%150.00%
Total72100.00%2100.00%


void host1x_debug_cont(struct output *o, const char *fmt, ...) { va_list args; int len; va_start(args, fmt); len = vsnprintf(o->buf, sizeof(o->buf), fmt, args); va_end(args); o->fn(o->ctx, o->buf, len, true); }

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Mikko Perttunen6995.83%150.00%
Terje Bergstrom34.17%150.00%
Total72100.00%2100.00%


static int show_channel(struct host1x_channel *ch, void *data, bool show_fifo) { struct host1x *m = dev_get_drvdata(ch->dev->parent); struct output *o = data; mutex_lock(&ch->cdma.lock); if (show_fifo) host1x_hw_show_channel_fifo(m, ch, o); host1x_hw_show_channel_cdma(m, ch, o); mutex_unlock(&ch->cdma.lock); return 0; }

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Terje Bergstrom8398.81%150.00%
Mikko Perttunen11.19%150.00%
Total84100.00%2100.00%


static void show_syncpts(struct host1x *m, struct output *o) { unsigned int i; host1x_debug_output(o, "---- syncpts ----\n"); for (i = 0; i < host1x_syncpt_nb_pts(m); i++) { u32 max = host1x_syncpt_read_max(m->syncpt + i); u32 min = host1x_syncpt_load(m->syncpt + i); if (!min && !max) continue; host1x_debug_output(o, "id %u (%s) min %d max %d\n", i, m->syncpt[i].name, min, max); } for (i = 0; i < host1x_syncpt_nb_bases(m); i++) { u32 base_val; base_val = host1x_syncpt_load_wait_base(m->syncpt + i); if (base_val) host1x_debug_output(o, "waitbase id %u val %d\n", i, base_val); } host1x_debug_output(o, "\n"); }

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Terje Bergstrom15198.05%150.00%
Thierry Reding31.95%150.00%
Total154100.00%2100.00%


static void show_all(struct host1x *m, struct output *o, bool show_fifo) { int i; host1x_hw_show_mlocks(m, o); show_syncpts(m, o); host1x_debug_output(o, "---- channels ----\n"); for (i = 0; i < m->info->nb_channels; ++i) { struct host1x_channel *ch = host1x_channel_get_index(m, i); if (ch) { show_channel(ch, o, show_fifo); host1x_channel_put(ch); } } }

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Terje Bergstrom5659.57%150.00%
Mikko Perttunen3840.43%150.00%
Total94100.00%2100.00%


static int host1x_debug_show_all(struct seq_file *s, void *unused) { struct output o = { .fn = write_to_seqfile, .ctx = s }; show_all(s->private, &o, true); return 0; }

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Terje Bergstrom4495.65%150.00%
Mikko Perttunen24.35%150.00%
Total46100.00%2100.00%


static int host1x_debug_show(struct seq_file *s, void *unused) { struct output o = { .fn = write_to_seqfile, .ctx = s }; show_all(s->private, &o, false); return 0; }

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Terje Bergstrom4393.48%150.00%
Mikko Perttunen36.52%150.00%
Total46100.00%2100.00%


static int host1x_debug_open_all(struct inode *inode, struct file *file) { return single_open(file, host1x_debug_show_all, inode->i_private); }

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Terje Bergstrom28100.00%1100.00%
Total28100.00%1100.00%

static const struct file_operations host1x_debug_all_fops = { .open = host1x_debug_open_all, .read = seq_read, .llseek = seq_lseek, .release = single_release, };
static int host1x_debug_open(struct inode *inode, struct file *file) { return single_open(file, host1x_debug_show, inode->i_private); }

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Terje Bergstrom28100.00%1100.00%
Total28100.00%1100.00%

static const struct file_operations host1x_debug_fops = { .open = host1x_debug_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, };
static void host1x_debugfs_init(struct host1x *host1x) { struct dentry *de = debugfs_create_dir("tegra-host1x", NULL); if (!de) return; /* Store the created entry */ host1x->debugfs = de; debugfs_create_file("status", S_IRUGO, de, host1x, &host1x_debug_fops); debugfs_create_file("status_all", S_IRUGO, de, host1x, &host1x_debug_all_fops); debugfs_create_u32("trace_cmdbuf", S_IRUGO|S_IWUSR, de, &host1x_debug_trace_cmdbuf); host1x_hw_debug_init(host1x, de); debugfs_create_u32("force_timeout_pid", S_IRUGO|S_IWUSR, de, &host1x_debug_force_timeout_pid); debugfs_create_u32("force_timeout_val", S_IRUGO|S_IWUSR, de, &host1x_debug_force_timeout_val); debugfs_create_u32("force_timeout_channel", S_IRUGO|S_IWUSR, de, &host1x_debug_force_timeout_channel); }

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Terje Bergstrom12598.43%150.00%
Thierry Reding21.57%150.00%
Total127100.00%2100.00%


static void host1x_debugfs_exit(struct host1x *host1x) { debugfs_remove_recursive(host1x->debugfs); }

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Terje Bergstrom1688.89%150.00%
Thierry Reding211.11%150.00%
Total18100.00%2100.00%


void host1x_debug_init(struct host1x *host1x) { if (IS_ENABLED(CONFIG_DEBUG_FS)) host1x_debugfs_init(host1x); }

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Thierry Reding1463.64%150.00%
Terje Bergstrom836.36%150.00%
Total22100.00%2100.00%


void host1x_debug_deinit(struct host1x *host1x) { if (IS_ENABLED(CONFIG_DEBUG_FS)) host1x_debugfs_exit(host1x); }

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Thierry Reding1463.64%150.00%
Terje Bergstrom836.36%150.00%
Total22100.00%2100.00%


void host1x_debug_dump(struct host1x *host1x) { struct output o = { .fn = write_to_printk }; show_all(host1x, &o, true); }

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Terje Bergstrom2993.55%150.00%
Mikko Perttunen26.45%150.00%
Total31100.00%2100.00%


void host1x_debug_dump_syncpts(struct host1x *host1x) { struct output o = { .fn = write_to_printk }; show_syncpts(host1x, &o); }

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Terje Bergstrom29100.00%1100.00%
Total29100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Terje Bergstrom81283.97%120.00%
Mikko Perttunen12012.41%240.00%
Thierry Reding353.62%240.00%
Total967100.00%5100.00%
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