import PULS_20160108

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / misc / mediatek / gpu / mt8127 / mali / mali / common / mali_pm.c

diff --git a/drivers/misc/mediatek/gpu/mt8127/mali/mali/common/mali_pm.c b/drivers/misc/mediatek/gpu/mt8127/mali/mali/common/mali_pm.c
new file mode 100644 (file)
index 0000000..58e7b62
--- /dev/null
+++ b/drivers/misc/mediatek/gpu/mt8127/mali/mali/common/mali_pm.c
@@ -0,0 +1,122 @@
+/*
+ * This confidential and proprietary software may be used only as
+ * authorised by a licensing agreement from ARM Limited
+ * (C) COPYRIGHT 2011-2013 ARM Limited
+ * ALL RIGHTS RESERVED
+ * The entire notice above must be reproduced on all authorised
+ * copies and copies may only be made to the extent permitted
+ * by a licensing agreement from ARM Limited.
+ */
+
+#include "mali_pm.h"
+#include "mali_kernel_common.h"
+#include "mali_osk.h"
+#include "mali_gp_scheduler.h"
+#include "mali_pp_scheduler.h"
+#include "mali_scheduler.h"
+#include "mali_kernel_utilization.h"
+#include "mali_group.h"
+#include "mali_pm_domain.h"
+#include "mali_pmu.h"
+
+static mali_bool mali_power_on = MALI_FALSE;
+
+_mali_osk_errcode_t mali_pm_initialize(void)
+{
+       _mali_osk_pm_dev_enable();
+       return _MALI_OSK_ERR_OK;
+}
+
+void mali_pm_terminate(void)
+{
+       mali_pm_domain_terminate();
+       _mali_osk_pm_dev_disable();
+}
+
+/* Reset GPU after power up */
+static void mali_pm_reset_gpu(void)
+{
+       /* Reset all L2 caches */
+       mali_l2_cache_reset_all();
+
+       /* Reset all groups */
+       mali_scheduler_reset_all_groups();
+}
+
+void mali_pm_os_suspend(void)
+{
+       MALI_DEBUG_PRINT(3, ("Mali PM: OS suspend\n"));
+       mali_gp_scheduler_suspend();
+       mali_pp_scheduler_suspend();
+       mali_utilization_suspend();
+       mali_group_power_off(MALI_TRUE);
+       mali_power_on = MALI_FALSE;
+}
+
+void mali_pm_os_resume(void)
+{
+       struct mali_pmu_core *pmu = mali_pmu_get_global_pmu_core();
+       mali_bool do_reset = MALI_FALSE;
+
+       MALI_DEBUG_PRINT(3, ("Mali PM: OS resume\n"));
+
+       if (MALI_TRUE != mali_power_on) {
+               do_reset = MALI_TRUE;
+       }
+
+       if (NULL != pmu) {
+               mali_pmu_reset(pmu);
+       }
+
+       mali_power_on = MALI_TRUE;
+       _mali_osk_write_mem_barrier();
+
+       if (do_reset) {
+               mali_pm_reset_gpu();
+               mali_group_power_on();
+       }
+
+       mali_gp_scheduler_resume();
+       mali_pp_scheduler_resume();
+}
+
+void mali_pm_runtime_suspend(void)
+{
+       MALI_DEBUG_PRINT(3, ("Mali PM: Runtime suspend\n"));
+       mali_group_power_off(MALI_TRUE);
+       mali_power_on = MALI_FALSE;
+}
+
+void mali_pm_runtime_resume(void)
+{
+       struct mali_pmu_core *pmu = mali_pmu_get_global_pmu_core();
+       mali_bool do_reset = MALI_FALSE;
+
+       MALI_DEBUG_PRINT(3, ("Mali PM: Runtime resume\n"));
+
+       if (MALI_TRUE != mali_power_on) {
+               do_reset = MALI_TRUE;
+       }
+
+       if (NULL != pmu) {
+               mali_pmu_reset(pmu);
+       }
+
+       mali_power_on = MALI_TRUE;
+       _mali_osk_write_mem_barrier();
+
+       if (do_reset) {
+               mali_pm_reset_gpu();
+               mali_group_power_on();
+       }
+}
+
+void mali_pm_set_power_is_on(void)
+{
+       mali_power_on = MALI_TRUE;
+}
+
+mali_bool mali_pm_is_power_on(void)
+{
+       return mali_power_on;
+}