summaryrefslogtreecommitdiff
path: root/target/linux/ps3/patches-2.6.28/0002-powerpc-ps3-Replace-the-flip_ctl-logic-in-ps3av-and.patch
blob: 40cf93dac26b5134928ceb6add61e9702f1c7449 (plain)
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
181
182
From 9b82f3e61758ed897200f0244b63a77c1791bcba Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Thu, 30 Oct 2008 08:12:58 +0000
Subject: powerpc/ps3: Replace the flip_ctl logic in ps3av and ps3fb by a mutex

Introduce ps3_gpu_mutex to synchronizes GPU-related operations, like:
  - invoking the L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT command using the
    lv1_gpu_context_attribute() hypervisor call,
  - handling the PS3AV_CID_AVB_PARAM packet in the PS3 A/V Settings driver.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/include/asm/ps3.h     |    3 +++
 arch/powerpc/include/asm/ps3av.h   |    4 ----
 arch/powerpc/platforms/ps3/setup.c |    4 ++++
 drivers/ps3/ps3av.c                |   20 --------------------
 drivers/ps3/ps3av_cmd.c            |    4 ++--
 drivers/video/ps3fb.c              |   17 +++++------------
 6 files changed, 14 insertions(+), 38 deletions(-)

diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index f9e34c4..4299365 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -516,4 +516,7 @@ void ps3_sync_irq(int node);
 u32 ps3_get_hw_thread_id(int cpu);
 u64 ps3_get_spe_id(void *arg);
 
+/* mutex synchronizing GPU accesses and video mode changes */
+extern struct mutex ps3_gpu_mutex;
+
 #endif
diff --git a/arch/powerpc/include/asm/ps3av.h b/arch/powerpc/include/asm/ps3av.h
index 5aa22cf..cd24ac1 100644
--- a/arch/powerpc/include/asm/ps3av.h
+++ b/arch/powerpc/include/asm/ps3av.h
@@ -740,8 +740,4 @@ extern int ps3av_audio_mute(int);
 extern int ps3av_audio_mute_analog(int);
 extern int ps3av_dev_open(void);
 extern int ps3av_dev_close(void);
-extern void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data),
-				    void *flip_data);
-extern void ps3av_flip_ctl(int on);
-
 #endif	/* _ASM_POWERPC_PS3AV_H_ */
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 77bc330..bfc33fb 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -42,6 +42,10 @@
 #define DBG pr_debug
 #endif
 
+/* mutex synchronizing GPU accesses and video mode changes */
+DEFINE_MUTEX(ps3_gpu_mutex);
+EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
+
 #if !defined(CONFIG_SMP)
 static void smp_send_stop(void) {}
 #endif
diff --git a/drivers/ps3/ps3av.c b/drivers/ps3/ps3av.c
index 06848b2..5324978 100644
--- a/drivers/ps3/ps3av.c
+++ b/drivers/ps3/ps3av.c
@@ -59,8 +59,6 @@ static struct ps3av {
 		struct ps3av_reply_hdr reply_hdr;
 		u8 raw[PS3AV_BUF_SIZE];
 	} recv_buf;
-	void (*flip_ctl)(int on, void *data);
-	void *flip_data;
 } *ps3av;
 
 /* color space */
@@ -939,24 +937,6 @@ int ps3av_audio_mute(int mute)
 
 EXPORT_SYMBOL_GPL(ps3av_audio_mute);
 
-void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data),
-			     void *flip_data)
-{
-	mutex_lock(&ps3av->mutex);
-	ps3av->flip_ctl = flip_ctl;
-	ps3av->flip_data = flip_data;
-	mutex_unlock(&ps3av->mutex);
-}
-EXPORT_SYMBOL_GPL(ps3av_register_flip_ctl);
-
-void ps3av_flip_ctl(int on)
-{
-	mutex_lock(&ps3av->mutex);
-	if (ps3av->flip_ctl)
-		ps3av->flip_ctl(on, ps3av->flip_data);
-	mutex_unlock(&ps3av->mutex);
-}
-
 static int ps3av_probe(struct ps3_system_bus_device *dev)
 {
 	int res;
diff --git a/drivers/ps3/ps3av_cmd.c b/drivers/ps3/ps3av_cmd.c
index 11eb503..716596e 100644
--- a/drivers/ps3/ps3av_cmd.c
+++ b/drivers/ps3/ps3av_cmd.c
@@ -864,7 +864,7 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len)
 {
 	int res;
 
-	ps3av_flip_ctl(0);	/* flip off */
+	mutex_lock(&ps3_gpu_mutex);
 
 	/* avb packet */
 	res = ps3av_do_pkt(PS3AV_CID_AVB_PARAM, send_len, sizeof(*avb),
@@ -878,7 +878,7 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len)
 			 res);
 
       out:
-	ps3av_flip_ctl(1);	/* flip on */
+	mutex_unlock(&ps3_gpu_mutex);
 	return res;
 }
 
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index 4b5d807..bd3e39b 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -460,12 +460,16 @@ static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
 		line_length |= (u64)src_line_length << 32;
 
 	src_offset += GPU_FB_START;
+
+	mutex_lock(&ps3_gpu_mutex);
 	status = lv1_gpu_context_attribute(ps3fb.context_handle,
 					   L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
 					   dst_offset, GPU_IOIF + src_offset,
 					   L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
 					   (width << 16) | height,
 					   line_length);
+	mutex_unlock(&ps3_gpu_mutex);
+
 	if (status)
 		dev_err(dev,
 			"%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
@@ -784,15 +788,6 @@ static int ps3fb_wait_for_vsync(u32 crtc)
 	return 0;
 }
 
-static void ps3fb_flip_ctl(int on, void *data)
-{
-	struct ps3fb_priv *priv = data;
-	if (on)
-		atomic_dec_if_positive(&priv->ext_flip);
-	else
-		atomic_inc(&priv->ext_flip);
-}
-
 
     /*
      * ioctl
@@ -1228,7 +1223,6 @@ static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
 	}
 
 	ps3fb.task = task;
-	ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb);
 
 	return 0;
 
@@ -1258,10 +1252,9 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
 
 	dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
 
-	ps3fb_flip_ctl(0, &ps3fb);	/* flip off */
+	atomic_inc(&ps3fb.ext_flip);	/* flip off */
 	ps3fb.dinfo->irq.mask = 0;
 
-	ps3av_register_flip_ctl(NULL, NULL);
 	if (ps3fb.task) {
 		struct task_struct *task = ps3fb.task;
 		ps3fb.task = NULL;
-- 
1.6.0.4