_mali_osk_errcode_t _mali_internal_profiling_start(u32 * limit)
{
_mali_osk_errcode_t ret;
mali_profiling_entry *new_profile_entries;
_mali_osk_mutex_wait(lock);
if (MALI_PROFILING_STATE_RUNNING == prof_state) {
_mali_osk_mutex_signal(lock);
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_mutex_signal(lock);
_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_mutex_signal(lock);
return ret;
}
inline _mali_osk_errcode_t _mali_osk_profiling_start(u32 * limit)
{
_mali_osk_errcode_t ret;
mali_profiling_entry *new_profile_entries = _mali_osk_valloc(*limit * sizeof(mali_profiling_entry));
if(NULL == new_profile_entries)
{
return _MALI_OSK_ERR_NOMEM;
}
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
if (prof_state != MALI_PROFILING_STATE_IDLE)
{
_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 */
}
if (*limit > MALI_PROFILING_MAX_BUFFER_ENTRIES)
{
*limit = MALI_PROFILING_MAX_BUFFER_ENTRIES;
}
profile_entries = new_profile_entries;
profile_entry_count = *limit;
ret = _mali_timestamp_reset();
if (ret == _MALI_OSK_ERR_OK)
{
prof_state = MALI_PROFILING_STATE_RUNNING;
}
else
{
_mali_osk_vfree(profile_entries);
profile_entries = NULL;
}
_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
return ret;
}
int mem_dump_mmu_page_table_wrapper(struct mali_session_data *session_data, _mali_uk_dump_mmu_page_table_s __user * uargs)
{
_mali_uk_dump_mmu_page_table_s kargs;
_mali_osk_errcode_t err;
void *buffer;
int rc = -EFAULT;
/* validate input */
MALI_CHECK_NON_NULL(uargs, -EINVAL);
/* the session_data pointer was validated by caller */
kargs.buffer = NULL;
/* get location of user buffer */
if (0 != get_user(buffer, &uargs->buffer)) goto err_exit;
/* get size of mmu page table info buffer from user space */
if ( 0 != get_user(kargs.size, &uargs->size) ) goto err_exit;
/* verify we can access the whole of the user buffer */
if (!access_ok(VERIFY_WRITE, buffer, kargs.size)) goto err_exit;
/* allocate temporary buffer (kernel side) to store mmu page table info */
MALI_CHECK(kargs.size > 0, -ENOMEM);
kargs.buffer = _mali_osk_valloc(kargs.size);
if (NULL == kargs.buffer)
{
rc = -ENOMEM;
goto err_exit;
}
kargs.ctx = session_data;
err = _mali_ukk_dump_mmu_page_table(&kargs);
if (_MALI_OSK_ERR_OK != err)
{
rc = map_errcode(err);
goto err_exit;
}
/* copy mmu page table info back to user space and update pointers */
if (0 != copy_to_user(uargs->buffer, kargs.buffer, kargs.size) ) goto err_exit;
if (0 != put_user((kargs.register_writes - (u32 *)kargs.buffer) + (u32 *)uargs->buffer, &uargs->register_writes)) goto err_exit;
if (0 != put_user((kargs.page_table_dump - (u32 *)kargs.buffer) + (u32 *)uargs->buffer, &uargs->page_table_dump)) goto err_exit;
if (0 != put_user(kargs.register_writes_size, &uargs->register_writes_size)) goto err_exit;
if (0 != put_user(kargs.page_table_dump_size, &uargs->page_table_dump_size)) goto err_exit;
rc = 0;
err_exit:
if (kargs.buffer) _mali_osk_vfree(kargs.buffer);
return rc;
}
int mem_dump_mmu_page_table_wrapper(struct mali_session_data *session_data, _mali_uk_dump_mmu_page_table_s __user * uargs)
{
_mali_uk_dump_mmu_page_table_s kargs;
_mali_osk_errcode_t err;
void *buffer;
int rc = -EFAULT;
MALI_CHECK_NON_NULL(uargs, -EINVAL);
kargs.buffer = NULL;
if (0 != get_user(buffer, &uargs->buffer)) goto err_exit;
if ( 0 != get_user(kargs.size, &uargs->size) ) goto err_exit;
if (!access_ok(VERIFY_WRITE, buffer, kargs.size)) goto err_exit;
kargs.buffer = _mali_osk_valloc(kargs.size);
if (NULL == kargs.buffer)
{
rc = -ENOMEM;
goto err_exit;
}
kargs.ctx = session_data;
err = _mali_ukk_dump_mmu_page_table(&kargs);
if (_MALI_OSK_ERR_OK != err)
{
rc = map_errcode(err);
goto err_exit;
}
if (0 != copy_to_user(uargs->buffer, kargs.buffer, kargs.size) ) goto err_exit;
if (0 != put_user((kargs.register_writes - (u32 *)kargs.buffer) + (u32 *)uargs->buffer, &uargs->register_writes)) goto err_exit;
if (0 != put_user((kargs.page_table_dump - (u32 *)kargs.buffer) + (u32 *)uargs->buffer, &uargs->page_table_dump)) goto err_exit;
if (0 != put_user(kargs.register_writes_size, &uargs->register_writes_size)) goto err_exit;
if (0 != put_user(kargs.page_table_dump_size, &uargs->page_table_dump_size)) goto err_exit;
rc = 0;
err_exit:
if (kargs.buffer) _mali_osk_vfree(kargs.buffer);
return rc;
}
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_mutex_term(lock);
lock = NULL;
}
}
_mali_osk_errcode_t _mali_internal_profiling_clear(void)
{
_mali_osk_mutex_wait(lock);
if (MALI_PROFILING_STATE_RETURN != prof_state) {
_mali_osk_mutex_signal(lock);
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_mutex_signal(lock);
return _MALI_OSK_ERR_OK;
}
void _mali_osk_profiling_term(void)
{
prof_state = MALI_PROFILING_STATE_UNINITIALIZED;
/* wait for all elements to be completely inserted into array */
while (_mali_osk_atomic_read(&profile_insert_index) != _mali_osk_atomic_read(&profile_entries_written))
{
/* do nothing */;
}
if (NULL != profile_entries)
{
_mali_osk_vfree(profile_entries);
profile_entries = NULL;
}
if (NULL != lock)
{
_mali_osk_lock_term(lock);
lock = NULL;
}
}
inline _mali_osk_errcode_t _mali_osk_profiling_clear(void)
{
_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
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 */
}
prof_state = MALI_PROFILING_STATE_IDLE;
profile_entry_count = 0;
_mali_osk_atomic_init(&profile_insert_index, 0);
_mali_osk_atomic_init(&profile_entries_written, 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;
}