diff options
Diffstat (limited to 'include/asm-x86/gart.h')
-rw-r--r-- | include/asm-x86/gart.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/include/asm-x86/gart.h b/include/asm-x86/gart.h deleted file mode 100644 index 3f62a83887f3..000000000000 --- a/include/asm-x86/gart.h +++ /dev/null | |||
@@ -1,71 +0,0 @@ | |||
1 | #ifndef _ASM_X8664_GART_H | ||
2 | #define _ASM_X8664_GART_H 1 | ||
3 | |||
4 | #include <asm/e820.h> | ||
5 | |||
6 | extern void set_up_gart_resume(u32, u32); | ||
7 | |||
8 | extern int fallback_aper_order; | ||
9 | extern int fallback_aper_force; | ||
10 | extern int fix_aperture; | ||
11 | |||
12 | /* PTE bits. */ | ||
13 | #define GPTE_VALID 1 | ||
14 | #define GPTE_COHERENT 2 | ||
15 | |||
16 | /* Aperture control register bits. */ | ||
17 | #define GARTEN (1<<0) | ||
18 | #define DISGARTCPU (1<<4) | ||
19 | #define DISGARTIO (1<<5) | ||
20 | |||
21 | /* GART cache control register bits. */ | ||
22 | #define INVGART (1<<0) | ||
23 | #define GARTPTEERR (1<<1) | ||
24 | |||
25 | /* K8 On-cpu GART registers */ | ||
26 | #define AMD64_GARTAPERTURECTL 0x90 | ||
27 | #define AMD64_GARTAPERTUREBASE 0x94 | ||
28 | #define AMD64_GARTTABLEBASE 0x98 | ||
29 | #define AMD64_GARTCACHECTL 0x9c | ||
30 | #define AMD64_GARTEN (1<<0) | ||
31 | |||
32 | static inline void enable_gart_translation(struct pci_dev *dev, u64 addr) | ||
33 | { | ||
34 | u32 tmp, ctl; | ||
35 | |||
36 | /* address of the mappings table */ | ||
37 | addr >>= 12; | ||
38 | tmp = (u32) addr<<4; | ||
39 | tmp &= ~0xf; | ||
40 | pci_write_config_dword(dev, AMD64_GARTTABLEBASE, tmp); | ||
41 | |||
42 | /* Enable GART translation for this hammer. */ | ||
43 | pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &ctl); | ||
44 | ctl |= GARTEN; | ||
45 | ctl &= ~(DISGARTCPU | DISGARTIO); | ||
46 | pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl); | ||
47 | } | ||
48 | |||
49 | static inline int aperture_valid(u64 aper_base, u32 aper_size, u32 min_size) | ||
50 | { | ||
51 | if (!aper_base) | ||
52 | return 0; | ||
53 | |||
54 | if (aper_base + aper_size > 0x100000000ULL) { | ||
55 | printk(KERN_ERR "Aperture beyond 4GB. Ignoring.\n"); | ||
56 | return 0; | ||
57 | } | ||
58 | if (e820_any_mapped(aper_base, aper_base + aper_size, E820_RAM)) { | ||
59 | printk(KERN_ERR "Aperture pointing to e820 RAM. Ignoring.\n"); | ||
60 | return 0; | ||
61 | } | ||
62 | if (aper_size < min_size) { | ||
63 | printk(KERN_ERR "Aperture too small (%d MB) than (%d MB)\n", | ||
64 | aper_size>>20, min_size>>20); | ||
65 | return 0; | ||
66 | } | ||
67 | |||
68 | return 1; | ||
69 | } | ||
70 | |||
71 | #endif | ||