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powerpc/ps3: Replace the flip_ctl logic in ps3av and ps3fb by a mutex

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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>
This commit is contained in:
Geert Uytterhoeven
2008-10-30 08:12:58 +00:00
committed by Paul Mackerras
parent 486936cd93
commit 9b82f3e617
6 changed files with 14 additions and 38 deletions
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drivers/video/ps3fb.c
+5 -12
View File
@@ -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;