/**
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* Copyright (C) 2012-2014, 2016-2017 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
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*
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* A copy of the licence is included with the program, and can also be obtained from Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "mali_kernel_common.h"
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#include "mali_osk.h"
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#include "mali_ukk.h"
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#include "mali_uk_types.h"
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#include "mali_user_settings_db.h"
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#include "mali_session.h"
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static u32 mali_user_settings[_MALI_UK_USER_SETTING_MAX];
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const char *_mali_uk_user_setting_descriptions[] = _MALI_UK_USER_SETTING_DESCRIPTIONS;
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static void mali_user_settings_notify(_mali_uk_user_setting_t setting, u32 value)
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{
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mali_bool done = MALI_FALSE;
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/*
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* This function gets a bit complicated because we can't hold the session lock while
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* allocating notification objects.
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*/
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while (!done) {
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u32 i;
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u32 num_sessions_alloc;
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u32 num_sessions_with_lock;
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u32 used_notification_objects = 0;
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_mali_osk_notification_t **notobjs;
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/* Pre allocate the number of notifications objects we need right now (might change after lock has been taken) */
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num_sessions_alloc = mali_session_get_count();
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if (0 == num_sessions_alloc) {
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/* No sessions to report to */
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return;
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}
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notobjs = (_mali_osk_notification_t **)_mali_osk_malloc(sizeof(_mali_osk_notification_t *) * num_sessions_alloc);
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if (NULL == notobjs) {
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MALI_PRINT_ERROR(("Failed to notify user space session about num PP core change (alloc failure)\n"));
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return;
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}
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for (i = 0; i < num_sessions_alloc; i++) {
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notobjs[i] = _mali_osk_notification_create(_MALI_NOTIFICATION_SETTINGS_CHANGED,
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sizeof(_mali_uk_settings_changed_s));
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if (NULL != notobjs[i]) {
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_mali_uk_settings_changed_s *data;
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data = notobjs[i]->result_buffer;
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data->setting = setting;
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data->value = value;
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} else {
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MALI_PRINT_ERROR(("Failed to notify user space session about setting change (alloc failure %u)\n", i));
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}
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}
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mali_session_lock();
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/* number of sessions will not change while we hold the lock */
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num_sessions_with_lock = mali_session_get_count();
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if (num_sessions_alloc >= num_sessions_with_lock) {
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/* We have allocated enough notification objects for all the sessions atm */
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struct mali_session_data *session, *tmp;
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MALI_SESSION_FOREACH(session, tmp, link) {
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MALI_DEBUG_ASSERT(used_notification_objects < num_sessions_alloc);
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if (NULL != notobjs[used_notification_objects]) {
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mali_session_send_notification(session, notobjs[used_notification_objects]);
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notobjs[used_notification_objects] = NULL; /* Don't track this notification object any more */
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}
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used_notification_objects++;
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}
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done = MALI_TRUE;
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}
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mali_session_unlock();
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/* Delete any remaining/unused notification objects */
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for (; used_notification_objects < num_sessions_alloc; used_notification_objects++) {
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if (NULL != notobjs[used_notification_objects]) {
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_mali_osk_notification_delete(notobjs[used_notification_objects]);
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}
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}
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_mali_osk_free(notobjs);
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}
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}
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void mali_set_user_setting(_mali_uk_user_setting_t setting, u32 value)
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{
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mali_bool notify = MALI_FALSE;
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if (setting >= _MALI_UK_USER_SETTING_MAX) {
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MALI_DEBUG_PRINT_ERROR(("Invalid user setting %ud\n"));
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return;
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}
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if (mali_user_settings[setting] != value) {
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notify = MALI_TRUE;
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}
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mali_user_settings[setting] = value;
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if (notify) {
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mali_user_settings_notify(setting, value);
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}
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}
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u32 mali_get_user_setting(_mali_uk_user_setting_t setting)
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{
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if (setting >= _MALI_UK_USER_SETTING_MAX) {
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return 0;
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}
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return mali_user_settings[setting];
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}
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_mali_osk_errcode_t _mali_ukk_get_user_setting(_mali_uk_get_user_setting_s *args)
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{
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_mali_uk_user_setting_t setting;
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MALI_DEBUG_ASSERT_POINTER(args);
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setting = args->setting;
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if (_MALI_UK_USER_SETTING_MAX > setting) {
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args->value = mali_user_settings[setting];
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return _MALI_OSK_ERR_OK;
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} else {
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return _MALI_OSK_ERR_INVALID_ARGS;
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}
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}
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_mali_osk_errcode_t _mali_ukk_get_user_settings(_mali_uk_get_user_settings_s *args)
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{
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MALI_DEBUG_ASSERT_POINTER(args);
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_mali_osk_memcpy(args->settings, mali_user_settings, sizeof(mali_user_settings));
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return _MALI_OSK_ERR_OK;
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}
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