drivers/gpu/msm/kgsl_debugfs.c - kernel/msm.git - Git at Google

 /* Copyright (c) 2002,2008-2012, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * 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/module.h>
 #include <linux/debugfs.h>

 #include "kgsl.h"
 #include "kgsl_device.h"
 #include "kgsl_sharedmem.h"

 /*default log levels is error for everything*/
 #define KGSL_LOG_LEVEL_DEFAULT 3
 #define KGSL_LOG_LEVEL_MAX     7

 struct dentry *kgsl_debugfs_dir;
 static struct dentry *pm_d_debugfs;
 struct dentry *proc_d_debugfs;

 static int pm_dump_set(void *data, u64 val)
 {
 	struct kgsl_device *device = data;

 	if (val) {
 		mutex_lock(&device->mutex);
 		kgsl_postmortem_dump(device, 1);
 		mutex_unlock(&device->mutex);
 	}

 	return 0;
 }
 DEFINE_SIMPLE_ATTRIBUTE(pm_dump_fops,
 			NULL,
 			pm_dump_set, "%llu\n");

 static int pm_regs_enabled_set(void *data, u64 val)
 {
 	struct kgsl_device *device = data;
 	device->pm_regs_enabled = val ? 1 : 0;
 	return 0;
 }

 static int pm_regs_enabled_get(void *data, u64 *val)
 {
 	struct kgsl_device *device = data;
 	*val = device->pm_regs_enabled;
 	return 0;
 }

 static int pm_ib_enabled_set(void *data, u64 val)
 {
 	struct kgsl_device *device = data;
 	device->pm_ib_enabled = val ? 1 : 0;
 	return 0;
 }

 static int pm_ib_enabled_get(void *data, u64 *val)
 {
 	struct kgsl_device *device = data;
 	*val = device->pm_ib_enabled;
 	return 0;
 }

 static int pm_enabled_set(void *data, u64 val)
 {
 	struct kgsl_device *device = data;
 	device->pm_dump_enable = val;
 	return 0;
 }

 static int pm_enabled_get(void *data, u64 *val)
 {
 	struct kgsl_device *device = data;
 	*val = device->pm_dump_enable;
 	return 0;
 }


 DEFINE_SIMPLE_ATTRIBUTE(pm_regs_enabled_fops,
 			pm_regs_enabled_get,
 			pm_regs_enabled_set, "%llu\n");

 DEFINE_SIMPLE_ATTRIBUTE(pm_ib_enabled_fops,
 			pm_ib_enabled_get,
 			pm_ib_enabled_set, "%llu\n");

 DEFINE_SIMPLE_ATTRIBUTE(pm_enabled_fops,
 			pm_enabled_get,
 			pm_enabled_set, "%llu\n");

 static inline int kgsl_log_set(unsigned int *log_val, void *data, u64 val)
 {
 	*log_val = min((unsigned int)val, (unsigned int)KGSL_LOG_LEVEL_MAX);
 	return 0;
 }

 #define KGSL_DEBUGFS_LOG(__log)                         \
 static int __log ## _set(void *data, u64 val)           \
 {                                                       \
 	struct kgsl_device *device = data;              \
 	return kgsl_log_set(&device->__log, data, val); \
 }                                                       \
 static int __log ## _get(void *data, u64 *val)	        \
 {                                                       \
 	struct kgsl_device *device = data;              \
 	*val = device->__log;                           \
 	return 0;                                       \
 }                                                       \
 DEFINE_SIMPLE_ATTRIBUTE(__log ## _fops,                 \
 __log ## _get, __log ## _set, "%llu\n");                \

 KGSL_DEBUGFS_LOG(drv_log);
 KGSL_DEBUGFS_LOG(cmd_log);
 KGSL_DEBUGFS_LOG(ctxt_log);
 KGSL_DEBUGFS_LOG(mem_log);
 KGSL_DEBUGFS_LOG(pwr_log);

 static int memfree_hist_print(struct seq_file *s, void *unused)
 {
 	void *base = kgsl_driver.memfree_hist.base_hist_rb;

 	struct kgsl_memfree_hist_elem *wptr = kgsl_driver.memfree_hist.wptr;
 	struct kgsl_memfree_hist_elem *p;
 	char str[16];

 	seq_printf(s, "%8s %8s %8s %11s\n",
 			"pid", "gpuaddr", "size", "flags");

 	mutex_lock(&kgsl_driver.memfree_hist_mutex);
 	p = wptr;
 	for (;;) {
 		kgsl_get_memory_usage(str, sizeof(str), p->flags);
 		/*
 		 * if the ring buffer is not filled up yet
 		 * all its empty elems have size==0
 		 * just skip them ...
 		*/
 		if (p->size)
 			seq_printf(s, "%8d %08x %8d %11s\n",
 				p->pid, p->gpuaddr, p->size, str);
 		p++;
 		if ((void *)p >= base + kgsl_driver.memfree_hist.size)
 			p = (struct kgsl_memfree_hist_elem *) base;

 		if (p == kgsl_driver.memfree_hist.wptr)
 			break;
 	}
 	mutex_unlock(&kgsl_driver.memfree_hist_mutex);
 	return 0;
 }

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

 static const struct file_operations memfree_hist_fops = {
 	.open = memfree_hist_open,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };

 void kgsl_device_debugfs_init(struct kgsl_device *device)
 {
 	if (kgsl_debugfs_dir && !IS_ERR(kgsl_debugfs_dir))
 		device->d_debugfs = debugfs_create_dir(device->name,
 						       kgsl_debugfs_dir);

 	if (!device->d_debugfs || IS_ERR(device->d_debugfs))
 		return;

 	device->cmd_log = KGSL_LOG_LEVEL_DEFAULT;
 	device->ctxt_log = KGSL_LOG_LEVEL_DEFAULT;
 	device->drv_log = KGSL_LOG_LEVEL_DEFAULT;
 	device->mem_log = KGSL_LOG_LEVEL_DEFAULT;
 	device->pwr_log = KGSL_LOG_LEVEL_DEFAULT;

 	debugfs_create_file("log_level_cmd", 0644, device->d_debugfs, device,
 			    &cmd_log_fops);
 	debugfs_create_file("log_level_ctxt", 0644, device->d_debugfs, device,
 			    &ctxt_log_fops);
 	debugfs_create_file("log_level_drv", 0644, device->d_debugfs, device,
 			    &drv_log_fops);
 	debugfs_create_file("log_level_mem", 0644, device->d_debugfs, device,
 				&mem_log_fops);
 	debugfs_create_file("log_level_pwr", 0644, device->d_debugfs, device,
 				&pwr_log_fops);
 	debugfs_create_file("memfree_history", 0444, device->d_debugfs, device,
 				&memfree_hist_fops);

 	/* Create postmortem dump control files */

 	pm_d_debugfs = debugfs_create_dir("postmortem", device->d_debugfs);

 	if (IS_ERR(pm_d_debugfs))
 		return;

 	debugfs_create_file("dump",  0600, pm_d_debugfs, device,
 			    &pm_dump_fops);
 	debugfs_create_file("regs_enabled", 0644, pm_d_debugfs, device,
 			    &pm_regs_enabled_fops);
 	debugfs_create_file("ib_enabled", 0644, pm_d_debugfs, device,
 				    &pm_ib_enabled_fops);
 	device->pm_dump_enable = 0;
 	debugfs_create_file("enable", 0644, pm_d_debugfs, device,
 				    &pm_enabled_fops);

 }

 static const char * const memtype_strings[] = {
 	"gpumem",
 	"pmem",
 	"ashmem",
 	"usermap",
 	"ion",
 };

 static const char *memtype_str(int memtype)
 {
 	if (memtype < ARRAY_SIZE(memtype_strings))
 		return memtype_strings[memtype];
 	return "unknown";
 }

 static char get_alignflag(const struct kgsl_memdesc *m)
 {
 	int align = kgsl_memdesc_get_align(m);
 	if (align >= ilog2(SZ_1M))
 		return 'L';
 	else if (align >= ilog2(SZ_64K))
 		return 'l';
 	return '-';
 }

 static char get_cacheflag(const struct kgsl_memdesc *m)
 {
 	static const char table[] = {
 		[KGSL_CACHEMODE_WRITECOMBINE] = '-',
 		[KGSL_CACHEMODE_UNCACHED] = 'u',
 		[KGSL_CACHEMODE_WRITEBACK] = 'b',
 		[KGSL_CACHEMODE_WRITETHROUGH] = 't',
 	};
 	return table[kgsl_memdesc_get_cachemode(m)];
 }

 static void print_mem_entry(struct seq_file *s, struct kgsl_mem_entry *entry)
 {
 	char flags[6];
 	char usage[16];
 	struct kgsl_memdesc *m = &entry->memdesc;

 	flags[0] = kgsl_memdesc_is_global(m) ?  'g' : '-';
 	flags[1] = m->flags & KGSL_MEMFLAGS_GPUREADONLY ? 'r' : '-';
 	flags[2] = get_alignflag(m);
 	flags[3] = get_cacheflag(m);
 	flags[4] = kgsl_memdesc_use_cpu_map(m) ? 'p' : '-';
 	flags[5] = '\0';

 	kgsl_get_memory_usage(usage, sizeof(usage), m->flags);

 	seq_printf(s, "%08x %8d %5d %5s %10s %16s %5d\n",
 			m->gpuaddr, m->size, entry->id, flags,
 			memtype_str(entry->memtype), usage, m->sglen);
 }

 static int process_mem_print(struct seq_file *s, void *unused)
 {
 	struct kgsl_mem_entry *entry;
 	struct rb_node *node;
 	struct kgsl_process_private *private = s->private;
 	int next = 0;

 	seq_printf(s, "%8s %8s %5s %5s %10s %16s %5s\n",
 		   "gpuaddr", "size", "id", "flags", "type", "usage", "sglen");

 	/* print all entries with a GPU address */
 	spin_lock(&private->mem_lock);

 	for (node = rb_first(&private->mem_rb); node; node = rb_next(node)) {
 		entry = rb_entry(node, struct kgsl_mem_entry, node);
 		print_mem_entry(s, entry);
 	}

 	spin_unlock(&private->mem_lock);

 	/* now print all the unbound entries */
 	while (1) {
 		rcu_read_lock();
 		entry = idr_get_next(&private->mem_idr, &next);
 		rcu_read_unlock();

 		if (entry == NULL)
 			break;
 		if (entry->memdesc.gpuaddr == 0)
 			print_mem_entry(s, entry);
 		next++;
 	}

 	return 0;
 }

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

 static const struct file_operations process_mem_fops = {
 	.open = process_mem_open,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
 };

 void
 kgsl_process_init_debugfs(struct kgsl_process_private *private)
 {
 	unsigned char name[16];

 	snprintf(name, sizeof(name), "%d", private->pid);

 	private->debug_root = debugfs_create_dir(name, proc_d_debugfs);
 	debugfs_create_file("mem", 0400, private->debug_root, private,
 			    &process_mem_fops);
 }

 void kgsl_core_debugfs_init(void)
 {
 	kgsl_debugfs_dir = debugfs_create_dir("kgsl", 0);
 	proc_d_debugfs = debugfs_create_dir("proc", kgsl_debugfs_dir);
 }

 void kgsl_core_debugfs_close(void)
 {
 	debugfs_remove_recursive(kgsl_debugfs_dir);
 }
	/* Copyright (c) 2002,2008-2012, The Linux Foundation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* 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/module.h>
	#include <linux/debugfs.h>

	#include "kgsl.h"
	#include "kgsl_device.h"
	#include "kgsl_sharedmem.h"

	/default log levels is error for everything/
	#define KGSL_LOG_LEVEL_DEFAULT 3
	#define KGSL_LOG_LEVEL_MAX 7

	struct dentry *kgsl_debugfs_dir;
	static struct dentry *pm_d_debugfs;
	struct dentry *proc_d_debugfs;

	static int pm_dump_set(void *data, u64 val)
	{
	struct kgsl_device *device = data;

	if (val) {
	mutex_lock(&device->mutex);
	kgsl_postmortem_dump(device, 1);
	mutex_unlock(&device->mutex);
	}

	return 0;
	}
	DEFINE_SIMPLE_ATTRIBUTE(pm_dump_fops,
	NULL,
	pm_dump_set, "%llu\n");

	static int pm_regs_enabled_set(void *data, u64 val)
	{
	struct kgsl_device *device = data;
	device->pm_regs_enabled = val ? 1 : 0;
	return 0;
	}

	static int pm_regs_enabled_get(void data, u64 val)
	{
	struct kgsl_device *device = data;
	*val = device->pm_regs_enabled;
	return 0;
	}

	static int pm_ib_enabled_set(void *data, u64 val)
	{
	struct kgsl_device *device = data;
	device->pm_ib_enabled = val ? 1 : 0;
	return 0;
	}

	static int pm_ib_enabled_get(void data, u64 val)
	{
	struct kgsl_device *device = data;
	*val = device->pm_ib_enabled;
	return 0;
	}

	static int pm_enabled_set(void *data, u64 val)
	{
	struct kgsl_device *device = data;
	device->pm_dump_enable = val;
	return 0;
	}

	static int pm_enabled_get(void data, u64 val)
	{
	struct kgsl_device *device = data;
	*val = device->pm_dump_enable;
	return 0;
	}


	DEFINE_SIMPLE_ATTRIBUTE(pm_regs_enabled_fops,
	pm_regs_enabled_get,
	pm_regs_enabled_set, "%llu\n");

	DEFINE_SIMPLE_ATTRIBUTE(pm_ib_enabled_fops,
	pm_ib_enabled_get,
	pm_ib_enabled_set, "%llu\n");

	DEFINE_SIMPLE_ATTRIBUTE(pm_enabled_fops,
	pm_enabled_get,
	pm_enabled_set, "%llu\n");

	static inline int kgsl_log_set(unsigned int log_val, void data, u64 val)
	{
	*log_val = min((unsigned int)val, (unsigned int)KGSL_LOG_LEVEL_MAX);
	return 0;
	}

	#define KGSL_DEBUGFS_LOG(__log) \
	static int __log ## _set(void *data, u64 val) \
	{ \
	struct kgsl_device *device = data; \
	return kgsl_log_set(&device->__log, data, val); \
	} \
	static int __log ## _get(void data, u64 val) \
	{ \
	struct kgsl_device *device = data; \
	*val = device->__log; \
	return 0; \
	} \
	DEFINE_SIMPLE_ATTRIBUTE(__log ## _fops, \
	__log ## _get, __log ## _set, "%llu\n"); \

	KGSL_DEBUGFS_LOG(drv_log);
	KGSL_DEBUGFS_LOG(cmd_log);
	KGSL_DEBUGFS_LOG(ctxt_log);
	KGSL_DEBUGFS_LOG(mem_log);
	KGSL_DEBUGFS_LOG(pwr_log);

	static int memfree_hist_print(struct seq_file s, void unused)
	{
	void *base = kgsl_driver.memfree_hist.base_hist_rb;

	struct kgsl_memfree_hist_elem *wptr = kgsl_driver.memfree_hist.wptr;
	struct kgsl_memfree_hist_elem *p;
	char str[16];

	seq_printf(s, "%8s %8s %8s %11s\n",
	"pid", "gpuaddr", "size", "flags");

	mutex_lock(&kgsl_driver.memfree_hist_mutex);
	p = wptr;
	for (;;) {
	kgsl_get_memory_usage(str, sizeof(str), p->flags);
	/*
	* if the ring buffer is not filled up yet
	* all its empty elems have size==0
	* just skip them ...
	*/
	if (p->size)
	seq_printf(s, "%8d %08x %8d %11s\n",
	p->pid, p->gpuaddr, p->size, str);
	p++;
	if ((void *)p >= base + kgsl_driver.memfree_hist.size)
	p = (struct kgsl_memfree_hist_elem *) base;

	if (p == kgsl_driver.memfree_hist.wptr)
	break;
	}
	mutex_unlock(&kgsl_driver.memfree_hist_mutex);
	return 0;
	}

	static int memfree_hist_open(struct inode inode, struct file file)
	{
	return single_open(file, memfree_hist_print, inode->i_private);
	}

	static const struct file_operations memfree_hist_fops = {
	.open = memfree_hist_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
	};

	void kgsl_device_debugfs_init(struct kgsl_device *device)
	{
	if (kgsl_debugfs_dir && !IS_ERR(kgsl_debugfs_dir))
	device->d_debugfs = debugfs_create_dir(device->name,
	kgsl_debugfs_dir);

	if (!device->d_debugfs \|\| IS_ERR(device->d_debugfs))
	return;

	device->cmd_log = KGSL_LOG_LEVEL_DEFAULT;
	device->ctxt_log = KGSL_LOG_LEVEL_DEFAULT;
	device->drv_log = KGSL_LOG_LEVEL_DEFAULT;
	device->mem_log = KGSL_LOG_LEVEL_DEFAULT;
	device->pwr_log = KGSL_LOG_LEVEL_DEFAULT;

	debugfs_create_file("log_level_cmd", 0644, device->d_debugfs, device,
	&cmd_log_fops);
	debugfs_create_file("log_level_ctxt", 0644, device->d_debugfs, device,
	&ctxt_log_fops);
	debugfs_create_file("log_level_drv", 0644, device->d_debugfs, device,
	&drv_log_fops);
	debugfs_create_file("log_level_mem", 0644, device->d_debugfs, device,
	&mem_log_fops);
	debugfs_create_file("log_level_pwr", 0644, device->d_debugfs, device,
	&pwr_log_fops);
	debugfs_create_file("memfree_history", 0444, device->d_debugfs, device,
	&memfree_hist_fops);

	/* Create postmortem dump control files */

	pm_d_debugfs = debugfs_create_dir("postmortem", device->d_debugfs);

	if (IS_ERR(pm_d_debugfs))
	return;

	debugfs_create_file("dump", 0600, pm_d_debugfs, device,
	&pm_dump_fops);
	debugfs_create_file("regs_enabled", 0644, pm_d_debugfs, device,
	&pm_regs_enabled_fops);
	debugfs_create_file("ib_enabled", 0644, pm_d_debugfs, device,
	&pm_ib_enabled_fops);
	device->pm_dump_enable = 0;
	debugfs_create_file("enable", 0644, pm_d_debugfs, device,
	&pm_enabled_fops);

	}

	static const char * const memtype_strings[] = {
	"gpumem",
	"pmem",
	"ashmem",
	"usermap",
	"ion",
	};

	static const char *memtype_str(int memtype)
	{
	if (memtype < ARRAY_SIZE(memtype_strings))
	return memtype_strings[memtype];
	return "unknown";
	}

	static char get_alignflag(const struct kgsl_memdesc *m)
	{
	int align = kgsl_memdesc_get_align(m);
	if (align >= ilog2(SZ_1M))
	return 'L';
	else if (align >= ilog2(SZ_64K))
	return 'l';
	return '-';
	}

	static char get_cacheflag(const struct kgsl_memdesc *m)
	{
	static const char table[] = {
	[KGSL_CACHEMODE_WRITECOMBINE] = '-',
	[KGSL_CACHEMODE_UNCACHED] = 'u',
	[KGSL_CACHEMODE_WRITEBACK] = 'b',
	[KGSL_CACHEMODE_WRITETHROUGH] = 't',
	};
	return table[kgsl_memdesc_get_cachemode(m)];
	}

	static void print_mem_entry(struct seq_file s, struct kgsl_mem_entry entry)
	{
	char flags[6];
	char usage[16];
	struct kgsl_memdesc *m = &entry->memdesc;

	flags[0] = kgsl_memdesc_is_global(m) ? 'g' : '-';
	flags[1] = m->flags & KGSL_MEMFLAGS_GPUREADONLY ? 'r' : '-';
	flags[2] = get_alignflag(m);
	flags[3] = get_cacheflag(m);
	flags[4] = kgsl_memdesc_use_cpu_map(m) ? 'p' : '-';
	flags[5] = '\0';

	kgsl_get_memory_usage(usage, sizeof(usage), m->flags);

	seq_printf(s, "%08x %8d %5d %5s %10s %16s %5d\n",
	m->gpuaddr, m->size, entry->id, flags,
	memtype_str(entry->memtype), usage, m->sglen);
	}

	static int process_mem_print(struct seq_file s, void unused)
	{
	struct kgsl_mem_entry *entry;
	struct rb_node *node;
	struct kgsl_process_private *private = s->private;
	int next = 0;

	seq_printf(s, "%8s %8s %5s %5s %10s %16s %5s\n",
	"gpuaddr", "size", "id", "flags", "type", "usage", "sglen");

	/* print all entries with a GPU address */
	spin_lock(&private->mem_lock);

	for (node = rb_first(&private->mem_rb); node; node = rb_next(node)) {
	entry = rb_entry(node, struct kgsl_mem_entry, node);
	print_mem_entry(s, entry);
	}

	spin_unlock(&private->mem_lock);

	/* now print all the unbound entries */
	while (1) {
	rcu_read_lock();
	entry = idr_get_next(&private->mem_idr, &next);
	rcu_read_unlock();

	if (entry == NULL)
	break;
	if (entry->memdesc.gpuaddr == 0)
	print_mem_entry(s, entry);
	next++;
	}

	return 0;
	}

	static int process_mem_open(struct inode inode, struct file file)
	{
	return single_open(file, process_mem_print, inode->i_private);
	}

	static const struct file_operations process_mem_fops = {
	.open = process_mem_open,
	.read = seq_read,
	.llseek = seq_lseek,
	.release = single_release,
	};

	void
	kgsl_process_init_debugfs(struct kgsl_process_private *private)
	{
	unsigned char name[16];

	snprintf(name, sizeof(name), "%d", private->pid);

	private->debug_root = debugfs_create_dir(name, proc_d_debugfs);
	debugfs_create_file("mem", 0400, private->debug_root, private,
	&process_mem_fops);
	}

	void kgsl_core_debugfs_init(void)
	{
	kgsl_debugfs_dir = debugfs_create_dir("kgsl", 0);
	proc_d_debugfs = debugfs_create_dir("proc", kgsl_debugfs_dir);
	}

	void kgsl_core_debugfs_close(void)
	{
	debugfs_remove_recursive(kgsl_debugfs_dir);
	}