diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-15 17:28:19 -0400 |
---|---|---|
committer | Thomas Gleixner <tglx@inhelltoy.tec.linutronix.de> | 2007-10-17 14:17:12 -0400 |
commit | 17d36707dd9c5c3c4ef09a278ee7444cfc60481e (patch) | |
tree | a5ca7943eae2caeaaa1554a5b3a04d01dad87953 /include/asm-x86 | |
parent | 003a46cfff308ee0d879dfa89b9a7c65b2a481bf (diff) |
x86: unify include/asm/agp_32/64.h
Same file, except for whitespace, comment formatting and the
usage of wbinvd() instead of asm volatile("wbinvd":::"memory"), which is
the same.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86')
-rw-r--r-- | include/asm-x86/agp.h | 43 | ||||
-rw-r--r-- | include/asm-x86/agp_32.h | 36 | ||||
-rw-r--r-- | include/asm-x86/agp_64.h | 34 |
3 files changed, 39 insertions, 74 deletions
diff --git a/include/asm-x86/agp.h b/include/asm-x86/agp.h index 9348f1e4f6f1..62df2a9e7130 100644 --- a/include/asm-x86/agp.h +++ b/include/asm-x86/agp.h | |||
@@ -1,5 +1,40 @@ | |||
1 | #ifdef CONFIG_X86_32 | 1 | #ifndef _ASM_X86_AGP_H |
2 | # include "agp_32.h" | 2 | #define _ASM_X86_AGP_H |
3 | #else | 3 | |
4 | # include "agp_64.h" | 4 | #include <asm/pgtable.h> |
5 | #include <asm/cacheflush.h> | ||
6 | |||
7 | /* | ||
8 | * Functions to keep the agpgart mappings coherent with the MMU. The | ||
9 | * GART gives the CPU a physical alias of pages in memory. The alias | ||
10 | * region is mapped uncacheable. Make sure there are no conflicting | ||
11 | * mappings with different cachability attributes for the same | ||
12 | * page. This avoids data corruption on some CPUs. | ||
13 | */ | ||
14 | |||
15 | /* | ||
16 | * Caller's responsibility to call global_flush_tlb() for performance | ||
17 | * reasons | ||
18 | */ | ||
19 | #define map_page_into_agp(page) change_page_attr(page, 1, PAGE_KERNEL_NOCACHE) | ||
20 | #define unmap_page_from_agp(page) change_page_attr(page, 1, PAGE_KERNEL) | ||
21 | #define flush_agp_mappings() global_flush_tlb() | ||
22 | |||
23 | /* | ||
24 | * Could use CLFLUSH here if the cpu supports it. But then it would | ||
25 | * need to be called for each cacheline of the whole page so it may | ||
26 | * not be worth it. Would need a page for it. | ||
27 | */ | ||
28 | #define flush_agp_cache() wbinvd() | ||
29 | |||
30 | /* Convert a physical address to an address suitable for the GART. */ | ||
31 | #define phys_to_gart(x) (x) | ||
32 | #define gart_to_phys(x) (x) | ||
33 | |||
34 | /* GATT allocation. Returns/accepts GATT kernel virtual address. */ | ||
35 | #define alloc_gatt_pages(order) \ | ||
36 | ((char *)__get_free_pages(GFP_KERNEL, (order))) | ||
37 | #define free_gatt_pages(table, order) \ | ||
38 | free_pages((unsigned long)(table), (order)) | ||
39 | |||
5 | #endif | 40 | #endif |
diff --git a/include/asm-x86/agp_32.h b/include/asm-x86/agp_32.h deleted file mode 100644 index 6af173dbf123..000000000000 --- a/include/asm-x86/agp_32.h +++ /dev/null | |||
@@ -1,36 +0,0 @@ | |||
1 | #ifndef AGP_H | ||
2 | #define AGP_H 1 | ||
3 | |||
4 | #include <asm/pgtable.h> | ||
5 | #include <asm/cacheflush.h> | ||
6 | |||
7 | /* | ||
8 | * Functions to keep the agpgart mappings coherent with the MMU. | ||
9 | * The GART gives the CPU a physical alias of pages in memory. The alias region is | ||
10 | * mapped uncacheable. Make sure there are no conflicting mappings | ||
11 | * with different cachability attributes for the same page. This avoids | ||
12 | * data corruption on some CPUs. | ||
13 | */ | ||
14 | |||
15 | /* Caller's responsibility to call global_flush_tlb() for | ||
16 | * performance reasons */ | ||
17 | #define map_page_into_agp(page) change_page_attr(page, 1, PAGE_KERNEL_NOCACHE) | ||
18 | #define unmap_page_from_agp(page) change_page_attr(page, 1, PAGE_KERNEL) | ||
19 | #define flush_agp_mappings() global_flush_tlb() | ||
20 | |||
21 | /* Could use CLFLUSH here if the cpu supports it. But then it would | ||
22 | need to be called for each cacheline of the whole page so it may not be | ||
23 | worth it. Would need a page for it. */ | ||
24 | #define flush_agp_cache() wbinvd() | ||
25 | |||
26 | /* Convert a physical address to an address suitable for the GART. */ | ||
27 | #define phys_to_gart(x) (x) | ||
28 | #define gart_to_phys(x) (x) | ||
29 | |||
30 | /* GATT allocation. Returns/accepts GATT kernel virtual address. */ | ||
31 | #define alloc_gatt_pages(order) \ | ||
32 | ((char *)__get_free_pages(GFP_KERNEL, (order))) | ||
33 | #define free_gatt_pages(table, order) \ | ||
34 | free_pages((unsigned long)(table), (order)) | ||
35 | |||
36 | #endif | ||
diff --git a/include/asm-x86/agp_64.h b/include/asm-x86/agp_64.h deleted file mode 100644 index de338666f3f9..000000000000 --- a/include/asm-x86/agp_64.h +++ /dev/null | |||
@@ -1,34 +0,0 @@ | |||
1 | #ifndef AGP_H | ||
2 | #define AGP_H 1 | ||
3 | |||
4 | #include <asm/cacheflush.h> | ||
5 | |||
6 | /* | ||
7 | * Functions to keep the agpgart mappings coherent. | ||
8 | * The GART gives the CPU a physical alias of memory. The alias is | ||
9 | * mapped uncacheable. Make sure there are no conflicting mappings | ||
10 | * with different cachability attributes for the same page. | ||
11 | */ | ||
12 | |||
13 | /* Caller's responsibility to call global_flush_tlb() for | ||
14 | * performance reasons */ | ||
15 | #define map_page_into_agp(page) change_page_attr(page, 1, PAGE_KERNEL_NOCACHE) | ||
16 | #define unmap_page_from_agp(page) change_page_attr(page, 1, PAGE_KERNEL) | ||
17 | #define flush_agp_mappings() global_flush_tlb() | ||
18 | |||
19 | /* Could use CLFLUSH here if the cpu supports it. But then it would | ||
20 | need to be called for each cacheline of the whole page so it may not be | ||
21 | worth it. Would need a page for it. */ | ||
22 | #define flush_agp_cache() asm volatile("wbinvd":::"memory") | ||
23 | |||
24 | /* Convert a physical address to an address suitable for the GART. */ | ||
25 | #define phys_to_gart(x) (x) | ||
26 | #define gart_to_phys(x) (x) | ||
27 | |||
28 | /* GATT allocation. Returns/accepts GATT kernel virtual address. */ | ||
29 | #define alloc_gatt_pages(order) \ | ||
30 | ((char *)__get_free_pages(GFP_KERNEL, (order))) | ||
31 | #define free_gatt_pages(table, order) \ | ||
32 | free_pages((unsigned long)(table), (order)) | ||
33 | |||
34 | #endif | ||