Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 22:21:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

gma500: allow the creation of 'stolen' memory objects

Browse Source 
For things like cursors and many kinds of framebuffer set up we are actually
best using the stolen memory when possible.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2011-07-15 17:33:08 +01:00 committed by Greg Kroah-Hartman
parent 7dfe43c52d
commit 7d7b7adf6b
2 changed files with 26 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/staging/gma500/gem.c
View File

@ -251,6 +251,21 @@ fail:
}
}
static int psb_gem_create_stolen(struct drm_file *file, struct drm_device *dev,
int size, u32 *handle)
{
struct gtt_range *gtt = psb_gtt_alloc_range(dev, size, "gem", 1);
if (gtt == NULL)
return -ENOMEM;
if (drm_gem_private_object_init(dev, &gtt->gem, size) != 0)
goto free_gtt;
if (drm_gem_handle_create(file, &gtt->gem, handle) == 0)
return 0;
free_gtt:
psb_gtt_free_range(dev, gtt);
return -ENOMEM;
}
/*
* GEM interfaces for our specific client
*/
@ -258,6 +273,15 @@ int psb_gem_create_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
{
struct drm_psb_gem_create *args = data;
int ret;
if (args->flags & PSB_GEM_CREATE_STOLEN) {
ret = psb_gem_create_stolen(file, dev, args->size,
&args->handle);
if (ret == 0)
return 0;
/* Fall throguh */
args->flags &= ~PSB_GEM_CREATE_STOLEN;
}
return psb_gem_create(file, dev, args->size, &args->handle);
}

3
drivers/staging/gma500/psb_drm.h
View File

@ -189,7 +189,8 @@ struct psb_drm_dpu_rect {
struct drm_psb_gem_create {
__u64 size;
__u32 handle;
__u32 pad;
__u32 flags;
#define PSB_GEM_CREATE_STOLEN 1 /* Stolen memory can be used */
};
#define PSB_2D_OP_BUFLEN 16