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authorDave Airlie <airlied@linux.ie>2007-10-29 15:14:03 +1000
committerDave Airlie <airlied@redhat.com>2008-02-05 14:33:32 +1000
commita13af4b4d842da6d7065b8c73fa8f0ac58fea1b6 (patch)
tree3269002c62ee1f10728cfa5a9782225329166d6b /include/linux/agp_backend.h
parent9ef9dc69d4167276c04590d67ee55de8380bc1ad (diff)
downloadlinux-2.6.34-ux500-a13af4b4d842da6d7065b8c73fa8f0ac58fea1b6.tar.gz
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/linux/agp_backend.h')
-rw-r--r--include/linux/agp_backend.h1
1 files changed, 1 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 */