From a13af4b4d842da6d7065b8c73fa8f0ac58fea1b6 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 29 Oct 2007 15:14:03 +1000 Subject: 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 --- include/linux/agp_backend.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux/agp_backend.h') diff --git a/include/linux/agp_backend.h b/include/linux/agp_backend.h index abc521c..03e3454 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 */ -- cgit v1.1