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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
From 0cf3be21782f8d5b74cce98a2b934e14ef418ef3 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 28 Jul 2015 14:24:53 -0400
Subject: [PATCH 0345/1050] drm/amdgpu: Implement irq interfaces for CGS
This implements the irq src registrar.
Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 81 ++++++++++++++++++++++++++++++---
drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c | 2 +
drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 5 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h | 1 +
5 files changed, 84 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
index 6ac3df8..93fbf35 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
@@ -290,26 +290,95 @@ static int amdgpu_cgs_set_camera_voltages(void *cgs_device, uint32_t mask,
return -EPERM;
}
+struct cgs_irq_params {
+ unsigned src_id;
+ cgs_irq_source_set_func_t set;
+ cgs_irq_handler_func_t handler;
+ void *private_data;
+};
+
+static int cgs_set_irq_state(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *src,
+ unsigned type,
+ enum amdgpu_interrupt_state state)
+{
+ struct cgs_irq_params *irq_params =
+ (struct cgs_irq_params *)src->data;
+ if (!irq_params)
+ return -EINVAL;
+ if (!irq_params->set)
+ return -EINVAL;
+ return irq_params->set(irq_params->private_data,
+ irq_params->src_id,
+ type,
+ (int)state);
+}
+
+static int cgs_process_irq(struct amdgpu_device *adev,
+ struct amdgpu_irq_src *source,
+ struct amdgpu_iv_entry *entry)
+{
+ struct cgs_irq_params *irq_params =
+ (struct cgs_irq_params *)source->data;
+ if (!irq_params)
+ return -EINVAL;
+ if (!irq_params->handler)
+ return -EINVAL;
+ return irq_params->handler(irq_params->private_data,
+ irq_params->src_id,
+ entry->iv_entry);
+}
+
+static const struct amdgpu_irq_src_funcs cgs_irq_funcs = {
+ .set = cgs_set_irq_state,
+ .process = cgs_process_irq,
+};
+
static int amdgpu_cgs_add_irq_source(void *cgs_device, unsigned src_id,
unsigned num_types,
cgs_irq_source_set_func_t set,
cgs_irq_handler_func_t handler,
void *private_data)
{
- /* TODO */
- return 0;
+ CGS_FUNC_ADEV;
+ int ret = 0;
+ struct cgs_irq_params *irq_params;
+ struct amdgpu_irq_src *source =
+ kzalloc(sizeof(struct amdgpu_irq_src), GFP_KERNEL);
+ if (!source)
+ return -ENOMEM;
+ irq_params =
+ kzalloc(sizeof(struct cgs_irq_params), GFP_KERNEL);
+ if (!irq_params) {
+ kfree(source);
+ return -ENOMEM;
+ }
+ source->num_types = num_types;
+ source->funcs = &cgs_irq_funcs;
+ irq_params->src_id = src_id;
+ irq_params->set = set;
+ irq_params->handler = handler;
+ irq_params->private_data = private_data;
+ source->data = (void *)irq_params;
+ ret = amdgpu_irq_add_id(adev, src_id, source);
+ if (ret) {
+ kfree(irq_params);
+ kfree(source);
+ }
+
+ return ret;
}
static int amdgpu_cgs_irq_get(void *cgs_device, unsigned src_id, unsigned type)
{
- /* TODO */
- return 0;
+ CGS_FUNC_ADEV;
+ return amdgpu_irq_get(adev, adev->irq.sources[src_id], type);
}
static int amdgpu_cgs_irq_put(void *cgs_device, unsigned src_id, unsigned type)
{
- /* TODO */
- return 0;
+ CGS_FUNC_ADEV;
+ return amdgpu_irq_put(adev, adev->irq.sources[src_id], type);
}
static const struct cgs_ops amdgpu_cgs_ops = {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
index fb44dd2..90044b2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
@@ -206,6 +206,8 @@ restart_ih:
amdgpu_amdkfd_interrupt(adev,
(const void *) &adev->irq.ih.ring[ring_index]);
+ entry.iv_entry = (const uint32_t *)
+ &adev->irq.ih.ring[ring_index];
amdgpu_ih_decode_iv(adev, &entry);
adev->irq.ih.rptr &= adev->irq.ih.ptr_mask;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
index c62b09e..ba38ae6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
@@ -52,6 +52,7 @@ struct amdgpu_iv_entry {
unsigned ring_id;
unsigned vm_id;
unsigned pas_id;
+ const uint32_t *iv_entry;
};
int amdgpu_ih_ring_init(struct amdgpu_device *adev, unsigned ring_size,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index b4d36f0..0aba8e9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -272,6 +272,11 @@ void amdgpu_irq_fini(struct amdgpu_device *adev)
kfree(src->enabled_types);
src->enabled_types = NULL;
+ if (src->data) {
+ kfree(src->data);
+ kfree(src);
+ adev->irq.sources[i] = NULL;
+ }
}
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
index 8299795..17b01aef 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
@@ -40,6 +40,7 @@ struct amdgpu_irq_src {
unsigned num_types;
atomic_t *enabled_types;
const struct amdgpu_irq_src_funcs *funcs;
+ void *data;
};
/* provided by interrupt generating IP blocks */
--
1.9.1
|
