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Basic VM and other minor improvements.

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Not complete, probably not fully debugged or optimized.
This commit is contained in:
Ben Gras
2008-11-19 12:26:10 +00:00
parent c888305e21
commit c078ec0331
273 changed files with 10814 additions and 4305 deletions
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4
include/sys/ioc_tty.h
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@@ -36,4 +36,8 @@
#define KIOCSLEDS _IOW('k', 2, struct kio_leds)
#define KIOCSMAP _IOW('k', 3, keymap_t)
/* /dev/video ioctls. */
#define TIOCMAPMEM _IORW('v', 1, struct mapreqvm)
#define TIOCUNMAPMEM _IORW('v', 2, struct mapreqvm)
#endif /* _S_I_TTY_H */

29
include/sys/mman.h Executable file
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@@ -0,0 +1,29 @@
#ifndef _MMAN_H
#define _MMAN_H
#ifndef _TYPES_H
#include <sys/types.h>
#endif
/* prot argument for mmap() */
#define PROT_NONE 0x00 /* no permissions */
#define PROT_READ 0x01 /* pages can be read */
#define PROT_WRITE 0x02 /* pages can be written */
#define PROT_EXEC 0x04 /* pages can be executed */
/* flags argument for mmap() */
#define MAP_SHARED 0x0001 /* share changes */
#define MAP_PRIVATE 0x0002 /* changes are private */
#define MAP_ANON 0x0004 /* anonymous memory */
#define MAP_PREALLOC 0x0008 /* not on-demand */
#define MAP_CONTIG 0x0010 /* contiguous in physical memory */
#define MAP_LOWER16M 0x0020 /* physically below 16MB */
/* mmap() error return */
#define MAP_FAILED ((void *)-1)
_PROTOTYPE( void *mmap, (void *, size_t, int, int, int, off_t));
_PROTOTYPE( int munmap, (void *, size_t));
#endif /* _MMAN_H */

39
include/sys/video.h Normal file
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@@ -0,0 +1,39 @@
#ifndef _SYS_VIDEO_H
#define _SYS_VIDEO_H 1
/* Definitions used by the console driver. */
#define MONO_BASE 0xB0000L /* base of mono video memory */
#define COLOR_BASE 0xB8000L /* base of color video memory */
#define MONO_SIZE 0x1000 /* 4K mono video memory */
#define COLOR_SIZE 0x4000 /* 16K color video memory */
#define EGA_SIZE 0x8000 /* EGA & VGA have at least 32K */
#define BLANK_COLOR 0x0700 /* determines cursor color on blank screen */
#define SCROLL_UP 0 /* scroll forward */
#define SCROLL_DOWN 1 /* scroll backward */
#define BLANK_MEM ((u16_t *) 0) /* tells mem_vid_copy() to blank the screen */
#define CONS_RAM_WORDS 80 /* video ram buffer size */
#define MAX_ESC_PARMS 4 /* number of escape sequence params allowed */
/* Constants relating to the controller chips. */
#define M_6845 0x3B4 /* port for 6845 mono */
#define C_6845 0x3D4 /* port for 6845 color */
#define INDEX 0 /* 6845's index register */
#define DATA 1 /* 6845's data register */
#define STATUS 6 /* 6845's status register */
#define VID_ORG 12 /* 6845's origin register */
#define CURSOR 14 /* 6845's cursor register */
/* Beeper. */
#define BEEP_FREQ 0x0533 /* value to put into timer to set beep freq */
#define B_TIME 3 /* length of CTRL-G beep is ticks */
/* definitions used for font management */
#define GA_SEQUENCER_INDEX 0x3C4
#define GA_SEQUENCER_DATA 0x3C5
#define GA_GRAPHICS_INDEX 0x3CE
#define GA_GRAPHICS_DATA 0x3CF
#define GA_VIDEO_ADDRESS 0xA0000L
#define GA_FONT_SIZE 8192
#endif

26
include/sys/vm.h
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@@ -2,8 +2,6 @@
sys/vm.h
*/
#define PAGE_SIZE 4096
/* MIOCMAP */
struct mapreq
{
@@ -13,18 +11,14 @@ struct mapreq
int readonly;
};
/* 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_ADDR_MASK 0xFFFFF000 /* physical address */
#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_CR0_PG 0x80000000 /* Enable paging */
/* MIOCMAPVM */
struct mapreqvm
{
int flags; /* reserved, must be 0 */
off_t phys_offset;
size_t size;
int readonly;
char reserved[40]; /* reserved, must be 0 */
void *vaddr_ret; /* result vaddr */
};

45
include/sys/vm_i386.h Normal file
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@@ -0,0 +1,45 @@
/*
sys/vm_i386.h
*/
#define I386_PAGE_SIZE 4096
/* 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 */
/* Page directory specific flags. */
#define I386_VM_BIGPAGE 0x080 /* 4MB page */
/* Page table specific flags. */
#define I386_VM_DIRTY 0x040 /* Dirty */
#define I386_VM_PTAVAIL1 0x080 /* Available for use. */
#define I386_VM_PTAVAIL2 0x100 /* 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 */
#define I386_CR0_PG 0x80000000 /* Enable paging */
/* 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) */