t83x/kernel/drivers/gpu/arm/midgard/backend/gpu/mali_kbase_pm_always_on.c

   1 /*
   2  *
   3  * (C) COPYRIGHT 2010-2015 ARM Limited. All rights reserved.
   4  *
   5  * This program is free software and is provided to you under the terms of the
   6  * GNU General Public License version 2 as published by the Free Software
   7  * Foundation, and any use by you of this program is subject to the terms
   8  * of such GNU licence.
   9  *
  10  * A copy of the licence is included with the program, and can also be obtained
  11  * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  12  * Boston, MA  02110-1301, USA.
  13  *
  14  */
  15
  16
  17
  18
  19
  20 /*
  21  * "Always on" power management policy
  22  */
  23
  24 #include <mali_kbase.h>
  25 #include <mali_kbase_pm.h>
  26
  27 static u64 always_on_get_core_mask(struct kbase_device *kbdev)
  28 {
  29         return kbdev->gpu_props.props.raw_props.shader_present;
  30 }
  31
  32 static bool always_on_get_core_active(struct kbase_device *kbdev)
  33 {
  34         return true;
  35 }
  36
  37 static void always_on_init(struct kbase_device *kbdev)
  38 {
  39         CSTD_UNUSED(kbdev);
  40 }
  41
  42 static void always_on_term(struct kbase_device *kbdev)
  43 {
  44         CSTD_UNUSED(kbdev);
  45 }
  46
  47 /*
  48  * The struct kbase_pm_policy structure for the demand power policy.
  49  *
  50  * This is the static structure that defines the demand power policy's callback
  51  * and name.
  52  */
  53 const struct kbase_pm_policy kbase_pm_always_on_policy_ops = {
  54         "always_on",                    /* name */
  55         always_on_init,                 /* init */
  56         always_on_term,                 /* term */
  57         always_on_get_core_mask,        /* get_core_mask */
  58         always_on_get_core_active,      /* get_core_active */
  59         0u,                             /* flags */
  60         KBASE_PM_POLICY_ID_ALWAYS_ON,   /* id */
  61 };
  62
  63 KBASE_EXPORT_TEST_API(kbase_pm_always_on_policy_ops);