fa59fc6eb4
Headers that will be shared between old includes and NetBSD-like includes are moved into common/include tree. They are still copied in /usr/include in 'make includes', so compilation and programs aren't be affected.
99 lines
3.8 KiB
C
99 lines
3.8 KiB
C
#ifndef __SYS_VM_386_H__
|
|
#define __SYS_VM_386_H__
|
|
/*
|
|
i386/vm.h
|
|
*/
|
|
|
|
#define I386_PAGE_SIZE 4096
|
|
#define I386_BIG_PAGE_SIZE (I386_PAGE_SIZE*I386_VM_PT_ENTRIES)
|
|
|
|
/* i386 paging constants */
|
|
#define I386_VM_PRESENT 0x001 /* Page is present */
|
|
#define I386_VM_WRITE 0x002 /* Read/write access allowed */
|
|
#define I386_VM_USER 0x004 /* User access allowed */
|
|
#define I386_VM_PWT 0x008 /* Write through */
|
|
#define I386_VM_PCD 0x010 /* Cache disable */
|
|
#define I386_VM_ACC 0x020 /* Accessed */
|
|
#define I386_VM_ADDR_MASK 0xFFFFF000 /* physical address */
|
|
#define I386_VM_ADDR_MASK_4MB 0xFFC00000 /* physical address */
|
|
#define I386_VM_OFFSET_MASK_4MB 0x003FFFFF /* physical address */
|
|
|
|
/* Page directory specific flags. */
|
|
#define I386_VM_BIGPAGE 0x080 /* 4MB page */
|
|
|
|
/* Page table specific flags. */
|
|
#define I386_VM_DIRTY (1L<< 6) /* Dirty */
|
|
#define I386_VM_PS (1L<< 7) /* Page size. */
|
|
#define I386_VM_GLOBAL (1L<< 8) /* Global. */
|
|
#define I386_VM_PTAVAIL1 (1L<< 9) /* Available for use. */
|
|
#define I386_VM_PTAVAIL2 (1L<<10) /* Available for use. */
|
|
#define I386_VM_PTAVAIL3 (1L<<11) /* Available for use. */
|
|
|
|
#define I386_VM_PT_ENT_SIZE 4 /* Size of a page table entry */
|
|
#define I386_VM_DIR_ENTRIES 1024 /* Number of entries in a page dir */
|
|
#define I386_VM_DIR_ENT_SHIFT 22 /* Shift to get entry in page dir. */
|
|
#define I386_VM_PT_ENT_SHIFT 12 /* Shift to get entry in page table */
|
|
#define I386_VM_PT_ENT_MASK 0x3FF /* Mask to get entry in page table */
|
|
#define I386_VM_PT_ENTRIES 1024 /* Number of entries in a page table */
|
|
#define I386_VM_PFA_SHIFT 22 /* Page frame address shift */
|
|
|
|
/* CR0 bits */
|
|
#define I386_CR0_PE 0x00000001 /* Protected mode */
|
|
#define I386_CR0_MP 0x00000002 /* Monitor Coprocessor */
|
|
#define I386_CR0_EM 0x00000004 /* Emulate */
|
|
#define I386_CR0_TS 0x00000008 /* Task Switched */
|
|
#define I386_CR0_ET 0x00000010 /* Extension Type */
|
|
#define I386_CR0_WP 0x00010000 /* Enable paging */
|
|
#define I386_CR0_PG 0x80000000 /* Enable paging */
|
|
|
|
/* some CR4 bits */
|
|
#define I386_CR4_VME 0x00000001 /* Virtual 8086 */
|
|
#define I386_CR4_PVI 0x00000002 /* Virtual ints */
|
|
#define I386_CR4_TSD 0x00000004 /* RDTSC privileged */
|
|
#define I386_CR4_DE 0x00000008 /* Debugging extensions */
|
|
#define I386_CR4_PSE 0x00000010 /* Page size extensions */
|
|
#define I386_CR4_PAE 0x00000020 /* Physical addr extens. */
|
|
#define I386_CR4_MCE 0x00000040 /* Machine check enable */
|
|
#define I386_CR4_PGE 0x00000080 /* Global page flag enable */
|
|
|
|
/* i386 paging 'functions' */
|
|
#define I386_VM_PTE(v) (((v) >> I386_VM_PT_ENT_SHIFT) & I386_VM_PT_ENT_MASK)
|
|
#define I386_VM_PDE(v) ( (v) >> I386_VM_DIR_ENT_SHIFT)
|
|
#define I386_VM_PFA(e) ( (e) & I386_VM_ADDR_MASK)
|
|
#define I386_VM_PAGE(v) ( (v) >> I386_VM_PFA_SHIFT)
|
|
|
|
/* i386 pagefault error code bits */
|
|
#define I386_VM_PFE_P 0x01 /* Pagefault caused by non-present page.
|
|
* (otherwise protection violation.)
|
|
*/
|
|
#define I386_VM_PFE_W 0x02 /* Caused by write (otherwise read) */
|
|
#define I386_VM_PFE_U 0x04 /* CPU in user mode (otherwise supervisor) */
|
|
|
|
/* CPUID flags */
|
|
#define CPUID1_EDX_FPU (1L) /* FPU presence */
|
|
#define CPUID1_EDX_PSE (1L << 3) /* Page Size Extension */
|
|
#define CPUID1_EDX_PGE (1L << 13) /* Page Global (bit) Enable */
|
|
#define CPUID1_EDX_APIC_ON_CHIP (1L << 9) /* APIC is present on the chip */
|
|
#define CPUID1_EDX_TSC (1L << 4) /* Timestamp counter present */
|
|
#define CPUID1_EDX_HTT (1L << 28) /* Supports HTT */
|
|
#define CPUID1_EDX_FXSR (1L << 24)
|
|
#define CPUID1_EDX_SSE (1L << 25)
|
|
#define CPUID1_EDX_SSE2 (1L << 26)
|
|
#define CPUID1_ECX_SSE3 (1L)
|
|
#define CPUID1_ECX_SSSE3 (1L << 9)
|
|
#define CPUID1_ECX_SSE4_1 (1L << 19)
|
|
#define CPUID1_ECX_SSE4_2 (1L << 20)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <minix/type.h>
|
|
|
|
/* structure used by VM to pass data to the kernel while enabling paging */
|
|
struct vm_ep_data {
|
|
struct mem_map * mem_map;
|
|
vir_bytes data_seg_limit;
|
|
};
|
|
#endif
|
|
|
|
#endif /* __SYS_VM_386_H__ */
|