diff options
Diffstat (limited to 'drivers/gpu/mali400/r3p2/mali/linux/mali_ukk_profiling.c')
| -rw-r--r-- | drivers/gpu/mali400/r3p2/mali/linux/mali_ukk_profiling.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/drivers/gpu/mali400/r3p2/mali/linux/mali_ukk_profiling.c b/drivers/gpu/mali400/r3p2/mali/linux/mali_ukk_profiling.c new file mode 100644 index 0000000..f4e31c9 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/mali/linux/mali_ukk_profiling.c @@ -0,0 +1,183 @@ +/* + * Copyright (C) 2010-2012 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include <linux/fs.h> /* file system operations */ +#include <asm/uaccess.h> /* user space access */ +#include <linux/slab.h> + +#include "mali_ukk.h" +#include "mali_osk.h" +#include "mali_kernel_common.h" +#include "mali_session.h" +#include "mali_ukk_wrappers.h" + +int profiling_start_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_start_s __user *uargs) +{ + _mali_uk_profiling_start_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_profiling_start_s))) + { + return -EFAULT; + } + + kargs.ctx = session_data; + err = _mali_ukk_profiling_start(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + if (0 != put_user(kargs.limit, &uargs->limit)) + { + return -EFAULT; + } + + return 0; +} + +int profiling_add_event_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_add_event_s __user *uargs) +{ + _mali_uk_profiling_add_event_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_profiling_add_event_s))) + { + return -EFAULT; + } + + kargs.ctx = session_data; + err = _mali_ukk_profiling_add_event(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + return 0; +} + +int profiling_stop_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_stop_s __user *uargs) +{ + _mali_uk_profiling_stop_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_profiling_stop(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + if (0 != put_user(kargs.count, &uargs->count)) + { + return -EFAULT; + } + + return 0; +} + +int profiling_get_event_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_get_event_s __user *uargs) +{ + _mali_uk_profiling_get_event_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != get_user(kargs.index, &uargs->index)) + { + return -EFAULT; + } + + kargs.ctx = session_data; + + err = _mali_ukk_profiling_get_event(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + kargs.ctx = NULL; /* prevent kernel address to be returned to user space */ + if (0 != copy_to_user(uargs, &kargs, sizeof(_mali_uk_profiling_get_event_s))) + { + return -EFAULT; + } + + return 0; +} + +int profiling_clear_wrapper(struct mali_session_data *session_data, _mali_uk_profiling_clear_s __user *uargs) +{ + _mali_uk_profiling_clear_s kargs; + _mali_osk_errcode_t err; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + kargs.ctx = session_data; + err = _mali_ukk_profiling_clear(&kargs); + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + return 0; +} + +int profiling_report_sw_counters_wrapper(struct mali_session_data *session_data, _mali_uk_sw_counters_report_s __user *uargs) +{ + _mali_uk_sw_counters_report_s kargs; + _mali_osk_errcode_t err; + u32 *counter_buffer; + + MALI_CHECK_NON_NULL(uargs, -EINVAL); + + if (0 != copy_from_user(&kargs, uargs, sizeof(_mali_uk_sw_counters_report_s))) + { + return -EFAULT; + } + + /* make sure that kargs.num_counters is [at least somewhat] sane */ + if (kargs.num_counters > 10000) { + MALI_DEBUG_PRINT(1, ("User space attempted to allocate too many counters.\n")); + return -EINVAL; + } + + counter_buffer = (u32*)kmalloc(sizeof(u32) * kargs.num_counters, GFP_KERNEL); + if (NULL == counter_buffer) + { + return -ENOMEM; + } + + if (0 != copy_from_user(counter_buffer, kargs.counters, sizeof(u32) * kargs.num_counters)) + { + kfree(counter_buffer); + return -EFAULT; + } + + kargs.ctx = session_data; + kargs.counters = counter_buffer; + + err = _mali_ukk_sw_counters_report(&kargs); + + kfree(counter_buffer); + + if (_MALI_OSK_ERR_OK != err) + { + return map_errcode(err); + } + + return 0; +} + + |