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 /include | |
| 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 'include')
| -rw-r--r-- | include/linux/agp_backend.h | 1 | ||||
| -rw-r--r-- | include/linux/agpgart.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/agp_backend.h b/include/linux/agp_backend.h index abc521cfb08..03e34547d48 100644 --- a/include/linux/agp_backend.h +++ b/include/linux/agp_backend.h @@ -109,6 +109,7 @@ extern int agp_unbind_memory(struct agp_memory *); extern void agp_enable(struct agp_bridge_data *, u32); extern struct agp_bridge_data *agp_backend_acquire(struct pci_dev *); extern void agp_backend_release(struct agp_bridge_data *); +extern void agp_flush_chipset(struct agp_bridge_data *); #endif /* __KERNEL__ */ #endif /* _AGP_BACKEND_H */ diff --git a/include/linux/agpgart.h b/include/linux/agpgart.h index 09fbf7e5a6c..62aef589eb9 100644 --- a/include/linux/agpgart.h +++ b/include/linux/agpgart.h @@ -38,6 +38,7 @@ #define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int) #define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, struct agp_bind*) #define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, struct agp_unbind*) +#define AGPIOC_CHIPSET_FLUSH _IO (AGPIOC_BASE, 10) #define AGP_DEVICE "/dev/agpgart" |