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/**
* Copyright (C) 2012-2015 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_ukk.h"
#include "mali_uk_types.h"
#include "mali_user_settings_db.h"
#include "mali_session.h"
static u32 mali_user_settings[_MALI_UK_USER_SETTING_MAX];
const char *_mali_uk_user_setting_descriptions[] = _MALI_UK_USER_SETTING_DESCRIPTIONS;
static void mali_user_settings_notify(_mali_uk_user_setting_t setting, u32 value)
{
mali_bool done = MALI_FALSE;
/*
* This function gets a bit complicated because we can't hold the session lock while
* allocating notification objects.
*/
while (!done) {
u32 i;
u32 num_sessions_alloc;
u32 num_sessions_with_lock;
u32 used_notification_objects = 0;
_mali_osk_notification_t **notobjs;
/* Pre allocate the number of notifications objects we need right now (might change after lock has been taken) */
num_sessions_alloc = mali_session_get_count();
if (0 == num_sessions_alloc) {
/* No sessions to report to */
return;
}
notobjs = (_mali_osk_notification_t **)_mali_osk_malloc(sizeof(_mali_osk_notification_t *) * num_sessions_alloc);
if (NULL == notobjs) {
MALI_PRINT_ERROR(("Failed to notify user space session about num PP core change (alloc failure)\n"));
return;
}
for (i = 0; i < num_sessions_alloc; i++) {
notobjs[i] = _mali_osk_notification_create(_MALI_NOTIFICATION_SETTINGS_CHANGED,
sizeof(_mali_uk_settings_changed_s));
if (NULL != notobjs[i]) {
_mali_uk_settings_changed_s *data;
data = notobjs[i]->result_buffer;
data->setting = setting;
data->value = value;
} else {
MALI_PRINT_ERROR(("Failed to notify user space session about setting change (alloc failure %u)\n", i));
}
}
mali_session_lock();
/* number of sessions will not change while we hold the lock */
num_sessions_with_lock = mali_session_get_count();
if (num_sessions_alloc >= num_sessions_with_lock) {
/* We have allocated enough notification objects for all the sessions atm */
struct mali_session_data *session, *tmp;
MALI_SESSION_FOREACH(session, tmp, link) {
MALI_DEBUG_ASSERT(used_notification_objects < num_sessions_alloc);
if (NULL != notobjs[used_notification_objects]) {
mali_session_send_notification(session, notobjs[used_notification_objects]);
notobjs[used_notification_objects] = NULL; /* Don't track this notification object any more */
}
used_notification_objects++;
}
done = MALI_TRUE;
}
mali_session_unlock();
/* Delete any remaining/unused notification objects */
for (; used_notification_objects < num_sessions_alloc; used_notification_objects++) {
if (NULL != notobjs[used_notification_objects]) {
_mali_osk_notification_delete(notobjs[used_notification_objects]);
}
}
_mali_osk_free(notobjs);
}
}
void mali_set_user_setting(_mali_uk_user_setting_t setting, u32 value)
{
mali_bool notify = MALI_FALSE;
if (setting >= _MALI_UK_USER_SETTING_MAX) {
MALI_DEBUG_PRINT_ERROR(("Invalid user setting %ud\n"));
return;
}
if (mali_user_settings[setting] != value) {
notify = MALI_TRUE;
}
mali_user_settings[setting] = value;
if (notify) {
mali_user_settings_notify(setting, value);
}
}
u32 mali_get_user_setting(_mali_uk_user_setting_t setting)
{
if (setting >= _MALI_UK_USER_SETTING_MAX) {
return 0;
}
return mali_user_settings[setting];
}
_mali_osk_errcode_t _mali_ukk_get_user_setting(_mali_uk_get_user_setting_s *args)
{
_mali_uk_user_setting_t setting;
MALI_DEBUG_ASSERT_POINTER(args);
setting = args->setting;
if (_MALI_UK_USER_SETTING_MAX > setting) {
args->value = mali_user_settings[setting];
return _MALI_OSK_ERR_OK;
} else {
return _MALI_OSK_ERR_INVALID_ARGS;
}
}
_mali_osk_errcode_t _mali_ukk_get_user_settings(_mali_uk_get_user_settings_s *args)
{
MALI_DEBUG_ASSERT_POINTER(args);
_mali_osk_memcpy(args->settings, mali_user_settings, sizeof(mali_user_settings));
return _MALI_OSK_ERR_OK;
}
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