/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_X86_AGP_H #define _ASM_X86_AGP_H #include <asm/pgtable.h> #include <asm/cacheflush.h> /* * Functions to keep the agpgart mappings coherent with the MMU. The * GART gives the CPU a physical alias of pages in memory. The alias * region is mapped uncacheable. Make sure there are no conflicting * mappings with different cachability attributes for the same * page. This avoids data corruption on some CPUs. */ #define map_page_into_agp(page) set_pages_uc(page, 1) #define unmap_page_from_agp(page) set_pages_wb(page, 1) /* * 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() wbinvd() /* GATT allocation. Returns/accepts GATT kernel virtual address. */ #define alloc_gatt_pages(order) \ ((char *)__get_free_pages(GFP_KERNEL, (order))) #define free_gatt_pages(table, order) \ free_pages((unsigned long)(table), (order)) #endif /* _ASM_X86_AGP_H */Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Thomas Gleixner | 50 | 89.29% | 2 | 40.00% |
| H. Peter Anvin | 3 | 5.36% | 1 | 20.00% |
| Arjan van de Ven | 2 | 3.57% | 1 | 20.00% |
| Greg Kroah-Hartman | 1 | 1.79% | 1 | 20.00% |
| Total | 56 | 100.00% | 5 | 100.00% |