4 /* These are the region types */
5 #define MTRR_TYPE_UNCACHEABLE 0
6 #define MTRR_TYPE_WRCOMB 1
7 /*#define MTRR_TYPE_ 2*/
8 /*#define MTRR_TYPE_ 3*/
9 #define MTRR_TYPE_WRTHROUGH 4
10 #define MTRR_TYPE_WRPROT 5
11 #define MTRR_TYPE_WRBACK 6
12 #define MTRR_NUM_TYPES 7
14 #define MTRRcap_MSR 0x0fe
15 #define MTRRdefType_MSR 0x2ff
17 #define MTRRdefTypeEn (1 << 11)
18 #define MTRRdefTypeFixEn (1 << 10)
20 #define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
21 #define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
23 #define MTRRphysMaskValid (1 << 11)
25 #define NUM_FIXED_RANGES 88
26 #define MTRRfix64K_00000_MSR 0x250
27 #define MTRRfix16K_80000_MSR 0x258
28 #define MTRRfix16K_A0000_MSR 0x259
29 #define MTRRfix4K_C0000_MSR 0x268
30 #define MTRRfix4K_C8000_MSR 0x269
31 #define MTRRfix4K_D0000_MSR 0x26a
32 #define MTRRfix4K_D8000_MSR 0x26b
33 #define MTRRfix4K_E0000_MSR 0x26c
34 #define MTRRfix4K_E8000_MSR 0x26d
35 #define MTRRfix4K_F0000_MSR 0x26e
36 #define MTRRfix4K_F8000_MSR 0x26f
38 #if !defined (__ASSEMBLER__) && !defined(__PRE_RAM__)
39 #include <device/device.h>
40 void enable_fixed_mtrr(void);
41 void x86_setup_var_mtrrs(unsigned int address_bits, unsigned int above4gb);
42 void x86_setup_mtrrs(unsigned address_bits);
43 int x86_mtrr_check(void);
44 void set_var_mtrr_resource(void *gp, struct device *dev, struct resource *res);
45 void x86_setup_fixed_mtrrs(void);
48 /* Validate CONFIG_XIP_ROM_SIZE and CONFIG_XIP_ROM_BASE */
49 #if defined(CONFIG_XIP_ROM_SIZE) && !defined(CONFIG_XIP_ROM_BASE)
50 # error "CONFIG_XIP_ROM_SIZE without CONFIG_XIP_ROM_BASE"
52 #if defined(CONFIG_XIP_ROM_BASE) && !defined(CONFIG_XIP_ROM_SIZE)
53 # error "CONFIG_XIP_ROM_BASE without CONFIG_XIP_ROM_SIZE"
55 #if !defined(CONFIG_RAMTOP)
56 # error "CONFIG_RAMTOP not defined"
59 #if defined(CONFIG_XIP_ROM_SIZE) && ((CONFIG_XIP_ROM_SIZE & (CONFIG_XIP_ROM_SIZE -1)) != 0)
60 # error "CONFIG_XIP_ROM_SIZE is not a power of 2"
62 #if defined(CONFIG_XIP_ROM_SIZE) && ((CONFIG_XIP_ROM_BASE % CONFIG_XIP_ROM_SIZE) != 0)
63 # error "CONFIG_XIP_ROM_BASE is not a multiple of CONFIG_XIP_ROM_SIZE"
66 #if (CONFIG_RAMTOP & (CONFIG_RAMTOP - 1)) != 0
67 # error "CONFIG_RAMTOP must be a power of 2"
70 #endif /* CPU_X86_MTRR_H */