diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/gart.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/asm-x86/gart.h b/include/asm-x86/gart.h index 90958ed993f..248e5778e92 100644 --- a/include/asm-x86/gart.h +++ b/include/asm-x86/gart.h @@ -5,6 +5,7 @@ extern void pci_iommu_shutdown(void); extern void no_iommu_init(void); extern int force_iommu, no_iommu; extern int iommu_detected; +extern int agp_amd64_init(void); #ifdef CONFIG_GART_IOMMU extern void gart_iommu_init(void); extern void gart_iommu_shutdown(void); @@ -31,4 +32,24 @@ static inline void gart_iommu_shutdown(void) #endif +/* PTE bits. */ +#define GPTE_VALID 1 +#define GPTE_COHERENT 2 + +/* Aperture control register bits. */ +#define GARTEN (1<<0) +#define DISGARTCPU (1<<4) +#define DISGARTIO (1<<5) + +/* GART cache control register bits. */ +#define INVGART (1<<0) +#define GARTPTEERR (1<<1) + +/* K8 On-cpu GART registers */ +#define AMD64_GARTAPERTURECTL 0x90 +#define AMD64_GARTAPERTUREBASE 0x94 +#define AMD64_GARTTABLEBASE 0x98 +#define AMD64_GARTCACHECTL 0x9c +#define AMD64_GARTEN (1<<0) + #endif |