AcoSail/kernel_optimize_test
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Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

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* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  agp: zero pages before sending to userspace
  drm: check for minor master before allowing drop master.
  drm: set/clear is_master when master changed
  drm: clean dirty memory after device release
  drm: count reaches -1
This commit is contained in:
Linus Torvalds 2009-04-20 08:42:48 -07:00
commit 5cab3856e7
4 changed files with 20 additions and 8 deletions
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4
drivers/char/agp/generic.c
View File

@ -1226,7 +1226,7 @@ int agp_generic_alloc_pages(struct agp_bridge_data *bridge, struct agp_memory *m
int i, ret = -ENOMEM;
for (i = 0; i < num_pages; i++) {
page = alloc_page(GFP_KERNEL | GFP_DMA32);
page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
/* agp_free_memory() needs gart address */
if (page == NULL)
goto out;
@ -1257,7 +1257,7 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge)
{
struct page * page;
page = alloc_page(GFP_KERNEL | GFP_DMA32);
page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
if (page == NULL)
return NULL;

11
drivers/gpu/drm/drm_stub.c
View File

@ -159,6 +159,9 @@ void drm_master_put(struct drm_master **master)
int drm_setmaster_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
if (file_priv->is_master)
return 0;
if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
return -EINVAL;
@ -169,6 +172,7 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data,
file_priv->minor->master != file_priv->master) {
mutex_lock(&dev->struct_mutex);
file_priv->minor->master = drm_master_get(file_priv->master);
file_priv->is_master = 1;
mutex_unlock(&dev->struct_mutex);
}
@ -178,10 +182,15 @@ int drm_setmaster_ioctl(struct drm_device *dev, void *data,
int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
if (!file_priv->master)
if (!file_priv->is_master)
return -EINVAL;
if (!file_priv->minor->master)
return -EINVAL;
mutex_lock(&dev->struct_mutex);
drm_master_put(&file_priv->minor->master);
file_priv->is_master = 0;
mutex_unlock(&dev->struct_mutex);
return 0;
}

1
drivers/gpu/drm/drm_sysfs.c
View File

@ -132,6 +132,7 @@ void drm_sysfs_destroy(void)
*/
static void drm_sysfs_device_release(struct device *dev)
{
memset(dev, 0, sizeof(struct device));
return;
}

12
drivers/gpu/drm/via/via_dma.c
View File

@ -481,11 +481,13 @@ static int via_wait_idle(drm_via_private_t * dev_priv)
{
int count = 10000000;
while (!(VIA_READ(VIA_REG_STATUS) & VIA_VR_QUEUE_BUSY) && count--);
while (!(VIA_READ(VIA_REG_STATUS) & VIA_VR_QUEUE_BUSY) && --count)
;
while (count-- && (VIA_READ(VIA_REG_STATUS) &
while (count && (VIA_READ(VIA_REG_STATUS) &
(VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY |
VIA_3D_ENG_BUSY))) ;
VIA_3D_ENG_BUSY)))
--count;
return count;
}
@ -705,7 +707,7 @@ static int via_cmdbuf_size(struct drm_device *dev, void *data, struct drm_file *
switch (d_siz->func) {
case VIA_CMDBUF_SPACE:
while (((tmp_size = via_cmdbuf_space(dev_priv)) < d_siz->size)
&& count--) {
&& --count) {
if (!d_siz->wait) {
break;
}
@ -717,7 +719,7 @@ static int via_cmdbuf_size(struct drm_device *dev, void *data, struct drm_file *
break;
case VIA_CMDBUF_LAG:
while (((tmp_size = via_cmdbuf_lag(dev_priv)) > d_siz->size)
&& count--) {
&& --count) {
if (!d_siz->wait) {
break;
}