1 /*
2 *
3 * (C) COPYRIGHT 2010-2016 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 * A simple demand based power management policy
22 */
23
24 #include <mali_kbase.h>
25 #include <mali_kbase_pm.h>
26
demand_get_core_mask(struct kbase_device * kbdev)27 static u64 demand_get_core_mask(struct kbase_device *kbdev)
28 {
29 u64 desired = kbdev->shader_needed_bitmap | kbdev->shader_inuse_bitmap;
30
31 if (0 == kbdev->pm.active_count)
32 return 0;
33
34 return desired;
35 }
36
demand_get_core_active(struct kbase_device * kbdev)37 static bool demand_get_core_active(struct kbase_device *kbdev)
38 {
39 if (0 == kbdev->pm.active_count && !(kbdev->shader_needed_bitmap |
40 kbdev->shader_inuse_bitmap) && !kbdev->tiler_needed_cnt
41 && !kbdev->tiler_inuse_cnt)
42 return false;
43
44 return true;
45 }
46
demand_init(struct kbase_device * kbdev)47 static void demand_init(struct kbase_device *kbdev)
48 {
49 CSTD_UNUSED(kbdev);
50 }
51
demand_term(struct kbase_device * kbdev)52 static void demand_term(struct kbase_device *kbdev)
53 {
54 CSTD_UNUSED(kbdev);
55 }
56
57 /*
58 * The struct kbase_pm_policy structure for the demand power policy.
59 *
60 * This is the static structure that defines the demand power policy's callback
61 * and name.
62 */
63 const struct kbase_pm_policy kbase_pm_demand_policy_ops = {
64 "demand", /* name */
65 demand_init, /* init */
66 demand_term, /* term */
67 demand_get_core_mask, /* get_core_mask */
68 demand_get_core_active, /* get_core_active */
69 0u, /* flags */
70 KBASE_PM_POLICY_ID_DEMAND, /* id */
71 };
72
73 KBASE_EXPORT_TEST_API(kbase_pm_demand_policy_ops);
74