void oprofile_create_files(struct super_block * sb, struct dentry * root)
{
oprofilefs_create_file(sb, root, "enable", &enable_fops);
oprofilefs_create_file_perm(sb, root, "dump", &dump_fops, 0666);
oprofilefs_create_file(sb, root, "buffer", &event_buffer_fops);
oprofilefs_create_ulong(sb, root, "buffer_size", &fs_buffer_size);
oprofilefs_create_ulong(sb, root, "buffer_watershed", &fs_buffer_watershed);
oprofilefs_create_ulong(sb, root, "cpu_buffer_size", &fs_cpu_buffer_size);
oprofilefs_create_file(sb, root, "cpu_type", &cpu_type_fops);
oprofilefs_create_file(sb, root, "backtrace_depth", &depth_fops);
oprofilefs_create_file(sb, root, "pointer_size", &pointer_size_fops);
oprofile_create_stats_files(sb, root);
if (oprofile_ops.create_files)
oprofile_ops.create_files(sb, root);
}
void oprofile_create_files(struct super_block *sb, struct dentry *root)
{
/* reinitialize default values */
oprofile_buffer_size = BUFFER_SIZE_DEFAULT;
oprofile_cpu_buffer_size = CPU_BUFFER_SIZE_DEFAULT;
oprofile_buffer_watershed = BUFFER_WATERSHED_DEFAULT;
oprofile_time_slice = msecs_to_jiffies(TIME_SLICE_DEFAULT);
oprofilefs_create_file(sb, root, "enable", &enable_fops);
oprofilefs_create_file_perm(sb, root, "dump", &dump_fops, 0666);
oprofilefs_create_file(sb, root, "buffer", &event_buffer_fops);
oprofilefs_create_ulong(sb, root, "buffer_size", &oprofile_buffer_size);
oprofilefs_create_ulong(sb, root, "buffer_watershed", &oprofile_buffer_watershed);
oprofilefs_create_ulong(sb, root, "cpu_buffer_size", &oprofile_cpu_buffer_size);
oprofilefs_create_file(sb, root, "cpu_type", &cpu_type_fops);
oprofilefs_create_file(sb, root, "backtrace_depth", &depth_fops);
oprofilefs_create_file(sb, root, "pointer_size", &pointer_size_fops);
#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
oprofilefs_create_file(sb, root, "time_slice", &timeout_fops);
#endif
oprofilefs_create_file(sb, root, "enhanced_backtrace",
&enhanced_backtrace_fops);
oprofile_create_stats_files(sb, root);
if (oprofile_ops.create_files)
oprofile_ops.create_files(sb, root);
}
static int sh7750_perf_counter_create_files(struct super_block *sb, struct dentry *root)
{
int i;
for (i = 0; i < NR_CNTRS; i++) {
struct dentry *dir;
char buf[4];
snprintf(buf, sizeof(buf), "%d", i);
dir = oprofilefs_mkdir(sb, root, buf);
oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
oprofilefs_create_file(sb, dir, "count", &count_fops);
/* Dummy entries */
oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask);
}
return 0;
}
static int oprofile_create_hwsampling_files(struct super_block *sb,
struct dentry *root)
{
struct dentry *hw_dir;
/* reinitialize default values */
hwsampler_file = 1;
hw_dir = oprofilefs_mkdir(sb, root, "hwsampling");
if (!hw_dir)
return -EINVAL;
oprofilefs_create_file(sb, hw_dir, "hwsampler", &hwsampler_fops);
oprofilefs_create_ulong(sb, hw_dir, "hw_interval",
&oprofile_hw_interval);
oprofilefs_create_ro_ulong(sb, hw_dir, "hw_min_interval",
&oprofile_min_interval);
oprofilefs_create_ro_ulong(sb, hw_dir, "hw_max_interval",
&oprofile_max_interval);
oprofilefs_create_ulong(sb, hw_dir, "hw_sdbt_blocks",
&oprofile_sdbt_blocks);
return 0;
}
static int oprofile_create_hwsampling_files(struct dentry *root)
{
struct dentry *dir;
dir = oprofilefs_mkdir(root, "timer");
if (!dir)
return -EINVAL;
oprofilefs_create_file(dir, "enabled", &timer_enabled_fops);
if (!hwsampler_available)
return 0;
/* reinitialize default values */
hwsampler_enabled = 1;
counter_config.kernel = 1;
counter_config.user = 1;
if (!force_cpu_type) {
/*
* Create the counter file system. A single virtual
* counter is created which can be used to
* enable/disable hardware sampling dynamically from
* user space. The user space will configure a single
* counter with a single event. The value of 'event'
* and 'unit_mask' are not evaluated by the kernel code
* and can only be set to 0.
*/
dir = oprofilefs_mkdir(root, "0");
if (!dir)
return -EINVAL;
oprofilefs_create_file(dir, "enabled", &hwsampler_fops);
oprofilefs_create_file(dir, "event", &zero_fops);
oprofilefs_create_file(dir, "count", &hw_interval_fops);
oprofilefs_create_file(dir, "unit_mask", &zero_fops);
oprofilefs_create_file(dir, "kernel", &kernel_fops);
oprofilefs_create_file(dir, "user", &user_fops);
oprofilefs_create_ulong(dir, "hw_sdbt_blocks",
&oprofile_sdbt_blocks);
} else {
/*
* Hardware sampling can be used but the cpu_type is
* forced to timer in order to deal with legacy user
* space tools. The /dev/oprofile/hwsampling fs is
* provided in that case.
*/
dir = oprofilefs_mkdir(root, "hwsampling");
if (!dir)
return -EINVAL;
oprofilefs_create_file(dir, "hwsampler",
&hwsampler_fops);
oprofilefs_create_file(dir, "hw_interval",
&hw_interval_fops);
oprofilefs_create_ro_ulong(dir, "hw_min_interval",
&oprofile_min_interval);
oprofilefs_create_ro_ulong(dir, "hw_max_interval",
&oprofile_max_interval);
oprofilefs_create_ulong(dir, "hw_sdbt_blocks",
&oprofile_sdbt_blocks);
}
return 0;
}