diff options
| author | Dave Airlie <airlied@linux.ie> | 2007-10-29 15:14:03 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2008-02-05 14:33:32 +1000 |
| commit | a13af4b4d842da6d7065b8c73fa8f0ac58fea1b6 (patch) | |
| tree | 3269002c62ee1f10728cfa5a9782225329166d6b /drivers/char/agp/compat_ioctl.c | |
| parent | 9ef9dc69d4167276c04590d67ee55de8380bc1ad (diff) | |
agp: add chipset flushing support to AGP interface
This bumps the AGP interface to 0.103.
Certain Intel chipsets contains a global write buffer, and this can require
flushing from the drm or X.org to make sure all data has hit RAM before
initiating a GPU transfer, due to a lack of coherency with the integrated
graphics device and this buffer.
This just adds generic support to the AGP interfaces, a follow-on patch
will add support to the Intel driver to use this interface.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/char/agp/compat_ioctl.c')
| -rw-r--r-- | drivers/char/agp/compat_ioctl.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/char/agp/compat_ioctl.c b/drivers/char/agp/compat_ioctl.c index ecd4248861b9..39275794fe63 100644 --- a/drivers/char/agp/compat_ioctl.c +++ b/drivers/char/agp/compat_ioctl.c @@ -273,6 +273,10 @@ long compat_agp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case AGPIOC_UNBIND32: ret_val = compat_agpioc_unbind_wrap(curr_priv, (void __user *) arg); break; + + case AGPIOC_CHIPSET_FLUSH32: + ret_val = agpioc_chipset_flush_wrap(curr_priv); + break; } ioctl_out: |