blob: b2558008f0a0faa51eb96ebc15158033aa63b2a9 [file] [log] [blame]
/*
* Copyright (C) 2010-2013 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 "mali_kernel_common.h"
#include "mali_osk.h"
#include "mali_osk_mali.h"
#include "mali_ukk.h"
#include "mali_timestamp.h"
#include "mali_osk_profiling.h"
#include "mali_user_settings_db.h"
#include "mali_profiling_internal.h"
typedef struct mali_profiling_entry
{
u64 timestamp;
u32 event_id;
u32 data[5];
} mali_profiling_entry;
typedef enum mali_profiling_state
{
MALI_PROFILING_STATE_UNINITIALIZED,
MALI_PROFILING_STATE_IDLE,
MALI_PROFILING_STATE_RUNNING,
MALI_PROFILING_STATE_RETURN,
} mali_profiling_state;
static _mali_osk_lock_t *lock = NULL;
static mali_profiling_state prof_state = MALI_PROFILING_STATE_UNINITIALIZED;
static mali_profiling_entry* profile_entries = NULL;
static _mali_osk_atomic_t profile_insert_index;
static u32 profile_mask = 0;
static inline void add_event(u32 event_id, u32 data0, u32 data1, u32 data2, u32 data3, u32 data4);
void probe_mali_timeline_event(void *data, TP_PROTO(unsigned int event_id, unsigned int d0, unsigned int d1, unsigned
int d2, unsigned int d3, unsigned int d4))
{
add_event(event_id, d0, d1, d2, d3, d4);
}
_mali_osk_errcode_t _mali_internal_profiling_init(mali_bool auto_start)
{
profile_entries = NULL;
profile_mask = 0;
_mali_osk_atomic_init(&profile_insert_index, 0);
lock = _mali_osk_lock_init(_MALI_OSK_LOCKFLAG_ORDERED | _MALI_OSK_LOCKFLAG_NONINTERRUPTABLE, 0, _MALI_OSK_LOCK_ORDER_PROFILING);
if (NULL == lock)
{
return _MALI_OSK_ERR_FAULT;
}
prof_state = MALI_PROFILING_STATE_IDLE;
if (MALI_TRUE == auto_start)
{
u32 limit = MALI_PROFILING_MAX_BUFFER_ENTRIES; /* Use maximum buffer size */
mali_set_user_setting(_MALI_UK_USER_SETTING_SW_EVENTS_ENABLE, MALI_TRUE);
if (_MALI_OSK_ERR_OK != _mali_internal_profiling_start(&limit))
{
return _MALI_OSK_ERR_FAULT;
}
}
return _MALI_OSK_ERR_OK;
}
void _mali_internal_profiling_term(void)
{
u32 count;
/* Ensure profiling is stopped */
_mali_internal_profiling_stop(&count);
prof_state = MALI_PROFILING_STATE_UNINITIALIZED;
if (NULL != profile_entries)
{
_mali_osk_vfree(profile_entries);
profile_entries = NULL;
}
if (NULL != lock)
{
_mali_osk_lock_term(lock);
lock = NULL;
}
}
_mali_osk_errcode_t _mali_internal_profiling_start(u32 * limit)
{
_mali_osk_errcode_t ret;
mali_profiling_entry *new_profile_entries;
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (MALI_PROFILING_STATE_RUNNING == prof_state)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_BUSY;
}
new_profile_entries = _mali_osk_valloc(*limit * sizeof(mali_profiling_entry));
if (NULL == new_profile_entries)
{
_mali_osk_vfree(new_profile_entries);
return _MALI_OSK_ERR_NOMEM;
}
if (MALI_PROFILING_MAX_BUFFER_ENTRIES < *limit)
{
*limit = MALI_PROFILING_MAX_BUFFER_ENTRIES;
}
profile_mask = 1;
while (profile_mask <= *limit)
{
profile_mask <<= 1;
}
profile_mask >>= 1;
*limit = profile_mask;
profile_mask--; /* turns the power of two into a mask of one less */
if (MALI_PROFILING_STATE_IDLE != prof_state)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
_mali_osk_vfree(new_profile_entries);
return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
}
profile_entries = new_profile_entries;
ret = _mali_timestamp_reset();
if (_MALI_OSK_ERR_OK == ret)
{
prof_state = MALI_PROFILING_STATE_RUNNING;
}
else
{
_mali_osk_vfree(profile_entries);
profile_entries = NULL;
}
register_trace_mali_timeline_event(probe_mali_timeline_event, NULL);
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return ret;
}
static inline void add_event(u32 event_id, u32 data0, u32 data1, u32 data2, u32 data3, u32 data4)
{
u32 cur_index = (_mali_osk_atomic_inc_return(&profile_insert_index) - 1) & profile_mask;
profile_entries[cur_index].timestamp = _mali_timestamp_get();
profile_entries[cur_index].event_id = event_id;
profile_entries[cur_index].data[0] = data0;
profile_entries[cur_index].data[1] = data1;
profile_entries[cur_index].data[2] = data2;
profile_entries[cur_index].data[3] = data3;
profile_entries[cur_index].data[4] = data4;
/* If event is "leave API function", add current memory usage to the event
* as data point 4. This is used in timeline profiling to indicate how
* much memory was used when leaving a function. */
if (event_id == (MALI_PROFILING_EVENT_TYPE_SINGLE|MALI_PROFILING_EVENT_CHANNEL_SOFTWARE|MALI_PROFILING_EVENT_REASON_SINGLE_SW_LEAVE_API_FUNC))
{
profile_entries[cur_index].data[4] = _mali_ukk_report_memory_usage();
}
}
_mali_osk_errcode_t _mali_internal_profiling_stop(u32 * count)
{
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (MALI_PROFILING_STATE_RUNNING != prof_state)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
}
/* go into return state (user to retreive events), no more events will be added after this */
prof_state = MALI_PROFILING_STATE_RETURN;
unregister_trace_mali_timeline_event(probe_mali_timeline_event, NULL);
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
tracepoint_synchronize_unregister();
*count = _mali_osk_atomic_read(&profile_insert_index);
if (*count > profile_mask) *count = profile_mask;
return _MALI_OSK_ERR_OK;
}
u32 _mali_internal_profiling_get_count(void)
{
u32 retval = 0;
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (MALI_PROFILING_STATE_RETURN == prof_state)
{
retval = _mali_osk_atomic_read(&profile_insert_index);
if (retval > profile_mask) retval = profile_mask;
}
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return retval;
}
_mali_osk_errcode_t _mali_internal_profiling_get_event(u32 index, u64* timestamp, u32* event_id, u32 data[5])
{
u32 raw_index = _mali_osk_atomic_read(&profile_insert_index);
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (index < profile_mask)
{
if ((raw_index & ~profile_mask) != 0)
{
index += raw_index;
index &= profile_mask;
}
if (prof_state != MALI_PROFILING_STATE_RETURN)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
}
if(index >= raw_index)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_FAULT;
}
*timestamp = profile_entries[index].timestamp;
*event_id = profile_entries[index].event_id;
data[0] = profile_entries[index].data[0];
data[1] = profile_entries[index].data[1];
data[2] = profile_entries[index].data[2];
data[3] = profile_entries[index].data[3];
data[4] = profile_entries[index].data[4];
}
else
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_FAULT;
}
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_OK;
}
_mali_osk_errcode_t _mali_internal_profiling_clear(void)
{
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (MALI_PROFILING_STATE_RETURN != prof_state)
{
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_INVALID_ARGS; /* invalid to call this function in this state */
}
prof_state = MALI_PROFILING_STATE_IDLE;
profile_mask = 0;
_mali_osk_atomic_init(&profile_insert_index, 0);
if (NULL != profile_entries)
{
_mali_osk_vfree(profile_entries);
profile_entries = NULL;
}
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return _MALI_OSK_ERR_OK;
}
mali_bool _mali_internal_profiling_is_recording(void)
{
return prof_state == MALI_PROFILING_STATE_RUNNING ? MALI_TRUE : MALI_FALSE;
}
mali_bool _mali_internal_profiling_have_recording(void)
{
return prof_state == MALI_PROFILING_STATE_RETURN ? MALI_TRUE : MALI_FALSE;
}