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staging: gma500: Add a test ioctl for issuing 2D accel ops via user space 

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 2011-04-01 18:41:30 +01:00 committed by Greg Kroah-Hartman
parent ad9f792e67
commit 9917294623
3 changed files with 30 additions and 1 deletions
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2
drivers/staging/gma500/psb_2d.c
View File

@ -84,7 +84,7 @@ static int psb_2d_wait_available(struct drm_psb_private *dev_priv,
/* FIXME: Remember if we expose the 2D engine to the DRM we need to serialize
it with console use */
static int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf,
int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf,
unsigned size)
{
int ret = 0;

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

@ -709,6 +709,9 @@ extern int psbfb_sync(struct fb_info *info);
extern void psb_spank(struct drm_psb_private *dev_priv);
extern int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf,
unsigned size);
/*
*psb_reset.c
*/

26
drivers/staging/gma500/psb_fb.c
View File

@ -270,6 +270,31 @@ static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
return 0;
}
static int psbfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
{
struct psb_fbdev *fbdev = info->par;
struct psb_framebuffer *psbfb = fbdev->pfb;
struct drm_device *dev = psbfb->base.dev;
struct drm_psb_private *dev_priv = dev->dev_private;
u32 __user *p = (u32 __user *)arg;
u32 l;
u32 buf[32];
switch (cmd) {
case 0x12345678:
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
if (get_user(l, p))
return -EFAULT;
if (l > 32)
return -EMSGSIZE;
if (copy_from_user(buf, p + 1, l))
return -EFAULT;
psbfb_2d_submit(dev_priv, buf, l);
return 0;
default:
return -ENOTTY;
}
}
static struct fb_ops psbfb_ops = {
.owner = THIS_MODULE,
@ -282,6 +307,7 @@ static struct fb_ops psbfb_ops = {
.fb_imageblit = psbfb_imageblit,
.fb_mmap = psbfb_mmap,
.fb_sync = psbfb_sync,
.fb_ioctl = psbfb_ioctl,
};
static struct drm_framebuffer *psb_framebuffer_create