diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/mtrr.h | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h deleted file mode 100644 index fac2e58502..0000000000 --- a/arch/x86/include/asm/mtrr.h +++ /dev/null @@ -1,193 +0,0 @@ -/* - * Generic MTRR (Memory Type Range Register) ioctls. - * Taken from the Linux kernel - * - * (C) Copyright 2012 - * Graeme Russ, <graeme.russ@gmail.com> - * - * Copyright (C) 1997-1999 Richard Gooch <rgooch@atnf.csiro.au> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifndef _ASM_X86_MTRR_H -#define _ASM_X86_MTRR_H - -#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg)) -#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1) - -#ifndef __ASSEMBLY__ - -#include <linux/types.h> -#include <linux/ioctl.h> -#include <errno.h> - -#define MTRR_IOCTL_BASE 'M' - -struct mtrr_sentry { - unsigned long base; /* Base address */ - unsigned int size; /* Size of region */ - unsigned int type; /* Type of region */ -}; - -/* - * Warning: this structure has a different order from i386 - * on x86-64. The 32bit emulation code takes care of that. - * But you need to use this for 64bit, otherwise your X server - * will break. - */ - -#ifdef __i386__ -struct mtrr_gentry { - unsigned int regnum; /* Register number */ - unsigned long base; /* Base address */ - unsigned int size; /* Size of region */ - unsigned int type; /* Type of region */ -}; - -#else /* __i386__ */ - -struct mtrr_gentry { - unsigned long base; /* Base address */ - unsigned int size; /* Size of region */ - unsigned int regnum; /* Register number */ - unsigned int type; /* Type of region */ -}; -#endif /* !__i386__ */ - -struct mtrr_var_range { - __u32 base_lo; - __u32 base_hi; - __u32 mask_lo; - __u32 mask_hi; -}; - -/* - * In the Intel processor's MTRR interface, the MTRR type is always held in - * an 8 bit field: - */ -typedef __u8 mtrr_type; - -#define MTRR_NUM_FIXED_RANGES 88 -#define MTRR_MAX_VAR_RANGES 256 - -struct mtrr_state_type { - struct mtrr_var_range var_ranges[MTRR_MAX_VAR_RANGES]; - mtrr_type fixed_ranges[MTRR_NUM_FIXED_RANGES]; - unsigned char enabled; - unsigned char have_fixed; - mtrr_type def_type; -}; - -/* These are the various ioctls */ -#define MTRRIOC_ADD_ENTRY _IOW(MTRR_IOCTL_BASE, 0, struct mtrr_sentry) -#define MTRRIOC_SET_ENTRY _IOW(MTRR_IOCTL_BASE, 1, struct mtrr_sentry) -#define MTRRIOC_DEL_ENTRY _IOW(MTRR_IOCTL_BASE, 2, struct mtrr_sentry) -#define MTRRIOC_GET_ENTRY _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry) -#define MTRRIOC_KILL_ENTRY _IOW(MTRR_IOCTL_BASE, 4, struct mtrr_sentry) -#define MTRRIOC_ADD_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 5, struct mtrr_sentry) -#define MTRRIOC_SET_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 6, struct mtrr_sentry) -#define MTRRIOC_DEL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 7, struct mtrr_sentry) -#define MTRRIOC_GET_PAGE_ENTRY _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry) -#define MTRRIOC_KILL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 9, struct mtrr_sentry) - -/* These are the region types */ -#define MTRR_TYPE_UNCACHABLE 0 -#define MTRR_TYPE_WRCOMB 1 -/*#define MTRR_TYPE_ 2*/ -/*#define MTRR_TYPE_ 3*/ -#define MTRR_TYPE_WRTHROUGH 4 -#define MTRR_TYPE_WRPROT 5 -#define MTRR_TYPE_WRBACK 6 -#define MTRR_NUM_TYPES 7 - -#ifdef __KERNEL__ - -/* The following functions are for use by other drivers */ -# ifdef CONFIG_MTRR -extern u8 mtrr_type_lookup(u64 addr, u64 end); -extern void mtrr_save_fixed_ranges(void *); -extern void mtrr_save_state(void); -extern int mtrr_add(unsigned long base, unsigned long size, - unsigned int type, bool increment); -extern int mtrr_add_page(unsigned long base, unsigned long size, - unsigned int type, bool increment); -extern int mtrr_del(int reg, unsigned long base, unsigned long size); -extern int mtrr_del_page(int reg, unsigned long base, unsigned long size); -extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi); -extern void mtrr_ap_init(void); -extern void mtrr_bp_init(void); -extern void set_mtrr_aps_delayed_init(void); -extern void mtrr_aps_init(void); -extern void mtrr_bp_restore(void); -extern int mtrr_trim_uncached_memory(unsigned long end_pfn); -extern int amd_special_default_mtrr(void); -# else -static inline u8 mtrr_type_lookup(u64 addr, u64 end) -{ - /* - * Return no-MTRRs: - */ - return 0xff; -} -#define mtrr_save_fixed_ranges(arg) do {} while (0) -#define mtrr_save_state() do {} while (0) -static inline int mtrr_del(int reg, unsigned long base, unsigned long size) -{ - return -ENODEV; -} -static inline int mtrr_del_page(int reg, unsigned long base, unsigned long size) -{ - return -ENODEV; -} -static inline int mtrr_trim_uncached_memory(unsigned long end_pfn) -{ - return 0; -} -static inline void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi) -{ -} - -#define mtrr_ap_init() do {} while (0) -#define mtrr_bp_init() do {} while (0) -#define set_mtrr_aps_delayed_init() do {} while (0) -#define mtrr_aps_init() do {} while (0) -#define mtrr_bp_restore() do {} while (0) -# endif - -#ifdef CONFIG_COMPAT -#include <linux/compat.h> - -struct mtrr_sentry32 { - compat_ulong_t base; /* Base address */ - compat_uint_t size; /* Size of region */ - compat_uint_t type; /* Type of region */ -}; - -struct mtrr_gentry32 { - compat_ulong_t regnum; /* Register number */ - compat_uint_t base; /* Base address */ - compat_uint_t size; /* Size of region */ - compat_uint_t type; /* Type of region */ -}; - -#define MTRR_IOCTL_BASE 'M' - -#define MTRRIOC32_ADD_ENTRY _IOW(MTRR_IOCTL_BASE, 0, struct mtrr_sentry32) -#define MTRRIOC32_SET_ENTRY _IOW(MTRR_IOCTL_BASE, 1, struct mtrr_sentry32) -#define MTRRIOC32_DEL_ENTRY _IOW(MTRR_IOCTL_BASE, 2, struct mtrr_sentry32) -#define MTRRIOC32_GET_ENTRY _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry32) -#define MTRRIOC32_KILL_ENTRY _IOW(MTRR_IOCTL_BASE, 4, struct mtrr_sentry32) -#define MTRRIOC32_ADD_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 5, struct mtrr_sentry32) -#define MTRRIOC32_SET_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 6, struct mtrr_sentry32) -#define MTRRIOC32_DEL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 7, struct mtrr_sentry32) -#define MTRRIOC32_GET_PAGE_ENTRY _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry32) -#define MTRRIOC32_KILL_PAGE_ENTRY \ - _IOW(MTRR_IOCTL_BASE, 9, struct mtrr_sentry32) -#endif /* CONFIG_COMPAT */ - -#endif /* __KERNEL__ */ - -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_X86_MTRR_H */ |