diff options
Diffstat (limited to 'arch/s390/oprofile/init.c')
| -rw-r--r-- | arch/s390/oprofile/init.c | 59 |
1 files changed, 38 insertions, 21 deletions
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c index 584b93674ea..9ffe645d598 100644 --- a/arch/s390/oprofile/init.c +++ b/arch/s390/oprofile/init.c @@ -10,6 +10,7 @@ */ #include <linux/oprofile.h> +#include <linux/perf_event.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/fs.h> @@ -67,6 +68,21 @@ module_param_call(cpu_type, set_cpu_type, NULL, NULL, 0); MODULE_PARM_DESC(cpu_type, "Force legacy basic mode sampling" "(report cpu_type \"timer\""); +static int __oprofile_hwsampler_start(void) +{ + int retval; + + retval = hwsampler_allocate(oprofile_sdbt_blocks, oprofile_sdb_blocks); + if (retval) + return retval; + + retval = hwsampler_start_all(oprofile_hw_interval); + if (retval) + hwsampler_deallocate(); + + return retval; +} + static int oprofile_hwsampler_start(void) { int retval; @@ -76,13 +92,13 @@ static int oprofile_hwsampler_start(void) if (!hwsampler_running) return timer_ops.start(); - retval = hwsampler_allocate(oprofile_sdbt_blocks, oprofile_sdb_blocks); + retval = perf_reserve_sampling(); if (retval) return retval; - retval = hwsampler_start_all(oprofile_hw_interval); + retval = __oprofile_hwsampler_start(); if (retval) - hwsampler_deallocate(); + perf_release_sampling(); return retval; } @@ -96,6 +112,7 @@ static void oprofile_hwsampler_stop(void) hwsampler_stop_all(); hwsampler_deallocate(); + perf_release_sampling(); return; } @@ -346,16 +363,15 @@ static const struct file_operations timer_enabled_fops = { }; -static int oprofile_create_hwsampling_files(struct super_block *sb, - struct dentry *root) +static int oprofile_create_hwsampling_files(struct dentry *root) { struct dentry *dir; - dir = oprofilefs_mkdir(sb, root, "timer"); + dir = oprofilefs_mkdir(root, "timer"); if (!dir) return -EINVAL; - oprofilefs_create_file(sb, dir, "enabled", &timer_enabled_fops); + oprofilefs_create_file(dir, "enabled", &timer_enabled_fops); if (!hwsampler_available) return 0; @@ -376,17 +392,17 @@ static int oprofile_create_hwsampling_files(struct super_block *sb, * and can only be set to 0. */ - dir = oprofilefs_mkdir(sb, root, "0"); + dir = oprofilefs_mkdir(root, "0"); if (!dir) return -EINVAL; - oprofilefs_create_file(sb, dir, "enabled", &hwsampler_fops); - oprofilefs_create_file(sb, dir, "event", &zero_fops); - oprofilefs_create_file(sb, dir, "count", &hw_interval_fops); - oprofilefs_create_file(sb, dir, "unit_mask", &zero_fops); - oprofilefs_create_file(sb, dir, "kernel", &kernel_fops); - oprofilefs_create_file(sb, dir, "user", &user_fops); - oprofilefs_create_ulong(sb, dir, "hw_sdbt_blocks", + 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 { @@ -396,19 +412,19 @@ static int oprofile_create_hwsampling_files(struct super_block *sb, * space tools. The /dev/oprofile/hwsampling fs is * provided in that case. */ - dir = oprofilefs_mkdir(sb, root, "hwsampling"); + dir = oprofilefs_mkdir(root, "hwsampling"); if (!dir) return -EINVAL; - oprofilefs_create_file(sb, dir, "hwsampler", + oprofilefs_create_file(dir, "hwsampler", &hwsampler_fops); - oprofilefs_create_file(sb, dir, "hw_interval", + oprofilefs_create_file(dir, "hw_interval", &hw_interval_fops); - oprofilefs_create_ro_ulong(sb, dir, "hw_min_interval", + oprofilefs_create_ro_ulong(dir, "hw_min_interval", &oprofile_min_interval); - oprofilefs_create_ro_ulong(sb, dir, "hw_max_interval", + oprofilefs_create_ro_ulong(dir, "hw_max_interval", &oprofile_max_interval); - oprofilefs_create_ulong(sb, dir, "hw_sdbt_blocks", + oprofilefs_create_ulong(dir, "hw_sdbt_blocks", &oprofile_sdbt_blocks); } return 0; @@ -440,6 +456,7 @@ static int oprofile_hwsampler_init(struct oprofile_operations *ops) switch (id.machine) { case 0x2097: case 0x2098: ops->cpu_type = "s390/z10"; break; case 0x2817: case 0x2818: ops->cpu_type = "s390/z196"; break; + case 0x2827: case 0x2828: ops->cpu_type = "s390/zEC12"; break; default: return -ENODEV; } } |