| #include <asm/cacheflush.h> |
| * Functions to keep the agpgart mappings coherent. |
| * The GART gives the CPU a physical alias of memory. The alias is |
| * mapped uncacheable. Make sure there are no conflicting mappings |
| * with different cachability attributes for the same page. |
| int map_page_into_agp(struct page *page); |
| int unmap_page_from_agp(struct page *page); |
| #define flush_agp_mappings() global_flush_tlb() |
| /* Could use CLFLUSH here if the cpu supports it. But then it would |
| need to be called for each cacheline of the whole page so it may not be |
| worth it. Would need a page for it. */ |
| #define flush_agp_cache() asm volatile("wbinvd":::"memory") |