1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
From 9c3a1fbdfbf9e2dc7be4a0654d8a3cdb04ffe659 Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Tue, 14 Aug 2018 13:32:30 +0800
Subject: [PATCH 5171/5725] drm/amdgpu: Refine function name and function args
There are no any logical changes here.
1. change function names:
amdgpu_device_ip_late_set_pg/cg_state to
amdgpu_device_set_pg/cg_state.
2. add a function argument cg/pg_state, so
we can enable/disable cg/pg through those functions
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Raveendra Talabattula <raveendra.talabattula@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 39 +++++++++++++++---------------
1 file changed, 19 insertions(+), 20 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index b798801..3b915c7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1740,24 +1740,26 @@ static bool amdgpu_device_check_vram_lost(struct amdgpu_device *adev)
}
/**
- * amdgpu_device_ip_late_set_cg_state - late init for clockgating
+ * amdgpu_device_set_cg_state - set clockgating for amdgpu device
*
* @adev: amdgpu_device pointer
*
- * Late initialization pass enabling clockgating for hardware IPs.
* The list of all the hardware IPs that make up the asic is walked and the
- * set_clockgating_state callbacks are run. This stage is run late
- * in the init process.
+ * set_clockgating_state callbacks are run.
+ * Late initialization pass enabling clockgating for hardware IPs.
+ * Fini or suspend, pass disabling clockgating for hardware IPs.
* Returns 0 on success, negative error code on failure.
*/
-static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev)
+static int amdgpu_device_set_cg_state(struct amdgpu_device *adev,
+ enum amd_clockgating_state state)
{
- int i = 0, r;
+ int i, j, r;
if (amdgpu_emu_mode == 1)
return 0;
- for (i = 0; i < adev->num_ip_blocks; i++) {
+ for (j = 0; j < adev->num_ip_blocks; j++) {
+ i = state == AMD_CG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
if (!adev->ip_blocks[i].status.valid)
continue;
/* skip CG for VCE/UVD, it's handled specially */
@@ -1767,7 +1769,7 @@ static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev)
adev->ip_blocks[i].version->funcs->set_clockgating_state) {
/* enable clockgating to save power */
r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
- AMD_CG_STATE_GATE);
+ state);
if (r) {
DRM_ERROR("set_clockgating_state(gate) of IP block <%s> failed %d\n",
adev->ip_blocks[i].version->funcs->name, r);
@@ -1779,14 +1781,15 @@ static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev)
return 0;
}
-static int amdgpu_device_ip_late_set_pg_state(struct amdgpu_device *adev)
+static int amdgpu_device_set_pg_state(struct amdgpu_device *adev, enum amd_powergating_state state)
{
- int i = 0, r;
+ int i, j, r;
if (amdgpu_emu_mode == 1)
return 0;
- for (i = 0; i < adev->num_ip_blocks; i++) {
+ for (j = 0; j < adev->num_ip_blocks; j++) {
+ i = state == AMD_PG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
if (!adev->ip_blocks[i].status.valid)
continue;
/* skip CG for VCE/UVD, it's handled specially */
@@ -1796,7 +1799,7 @@ static int amdgpu_device_ip_late_set_pg_state(struct amdgpu_device *adev)
adev->ip_blocks[i].version->funcs->set_powergating_state) {
/* enable powergating to save power */
r = adev->ip_blocks[i].version->funcs->set_powergating_state((void *)adev,
- AMD_PG_STATE_GATE);
+ state);
if (r) {
DRM_ERROR("set_powergating_state(gate) of IP block <%s> failed %d\n",
adev->ip_blocks[i].version->funcs->name, r);
@@ -1837,8 +1840,8 @@ static int amdgpu_device_ip_late_init(struct amdgpu_device *adev)
}
}
- amdgpu_device_ip_late_set_cg_state(adev);
- amdgpu_device_ip_late_set_pg_state(adev);
+ amdgpu_device_set_cg_state(adev, AMD_CG_STATE_GATE);
+ amdgpu_device_set_pg_state(adev, AMD_PG_STATE_GATE);
queue_delayed_work(system_wq, &adev->late_init_work,
msecs_to_jiffies(AMDGPU_RESUME_MS));
@@ -1955,13 +1958,9 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
}
/**
- * amdgpu_device_ip_late_init_func_handler - work handler for clockgating
- *
- * @work: work_struct
+ * amdgpu_device_ip_late_init_func_handler - work handler for ib test
*
- * Work handler for amdgpu_device_ip_late_set_cg_state. We put the
- * clockgating setup into a worker thread to speed up driver init and
- * resume from suspend.
+ * @work: work_struct.
*/
static void amdgpu_device_ip_late_init_func_handler(struct work_struct *work)
{
--
2.7.4
|
