diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-17 21:05:42 -0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-22 22:55:20 -0700 |
| commit | bb8985586b7a906e116db835c64773b7a7d51663 (patch) | |
| tree | de93ae58e88cc563d95cc124a73f3930594c6100 /include/asm-x86/gart.h | |
| parent | 8ede0bdb63305d3353efd97e9af6210afb05734e (diff) | |
x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'include/asm-x86/gart.h')
| -rw-r--r-- | include/asm-x86/gart.h | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/include/asm-x86/gart.h b/include/asm-x86/gart.h deleted file mode 100644 index 605edb39ef9..00000000000 --- a/include/asm-x86/gart.h +++ /dev/null @@ -1,73 +0,0 @@ -#ifndef ASM_X86__GART_H -#define ASM_X86__GART_H - -#include <asm/e820.h> - -extern void set_up_gart_resume(u32, u32); - -extern int fallback_aper_order; -extern int fallback_aper_force; -extern int fix_aperture; - -/* 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) - -extern int agp_amd64_init(void); - -static inline void enable_gart_translation(struct pci_dev *dev, u64 addr) -{ - u32 tmp, ctl; - - /* address of the mappings table */ - addr >>= 12; - tmp = (u32) addr<<4; - tmp &= ~0xf; - pci_write_config_dword(dev, AMD64_GARTTABLEBASE, tmp); - - /* Enable GART translation for this hammer. */ - pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &ctl); - ctl |= GARTEN; - ctl &= ~(DISGARTCPU | DISGARTIO); - pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, ctl); -} - -static inline int aperture_valid(u64 aper_base, u32 aper_size, u32 min_size) -{ - if (!aper_base) - return 0; - - if (aper_base + aper_size > 0x100000000ULL) { - printk(KERN_INFO "Aperture beyond 4GB. Ignoring.\n"); - return 0; - } - if (e820_any_mapped(aper_base, aper_base + aper_size, E820_RAM)) { - printk(KERN_INFO "Aperture pointing to e820 RAM. Ignoring.\n"); - return 0; - } - if (aper_size < min_size) { - printk(KERN_INFO "Aperture too small (%d MB) than (%d MB)\n", - aper_size>>20, min_size>>20); - return 0; - } - - return 1; -} - -#endif /* ASM_X86__GART_H */ |