Subversion Repositories HelenOS

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Ignore whitespace Rev 4346 → Rev 4347

/branches/dynload/kernel/arch/ia32/src/boot/boot.S
31,6 → 31,7
#include <arch/boot/memmap.h>
#include <arch/mm/page.h>
#include <arch/pm.h>
#include <arch/cpuid.h>
 
#define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE)
 
67,13 → 68,14
movl %eax, grub_eax # save parameters from GRUB
movl %ebx, grub_ebx
xorl %eax, %eax
movl $(INTEL_CPUID_LEVEL), %eax
cpuid
cmp $0x0, %eax # any function > 0?
jbe pse_unsupported
movl $0x1, %eax # basic function code 1
movl $(INTEL_CPUID_STANDARD), %eax
cpuid
bt $3, %edx # test if PSE is supported
bt $(INTEL_PSE), %edx
jc pse_supported
pse_unsupported:
81,6 → 83,14
jmp error_halt
pse_supported:
bt $(INTEL_SEP), %edx
jc sep_supported
movl $sep_msg, %esi
jmp error_halt
sep_supported:
 
#include "vesa_prot.inc"
 
213,3 → 223,6
 
pse_msg:
.asciz "Page Size Extension not supported. System halted."
 
sep_msg:
.asciz "SYSENTER/SYSEXIT not supported. System halted."
/branches/dynload/kernel/arch/ia32/src/boot/vesa_real.inc
4,22 → 4,28
 
#define VESA_INFO_SIZE 1024
 
#define VESA_MODE_ATTRIBUTES_OFFSET 0
#define VESA_MODE_LIST_PTR_OFFSET 14
#define VESA_MODE_SCANLINE_OFFSET 16
#define VESA_MODE_WIDTH_OFFSET 18
#define VESA_MODE_HEIGHT_OFFSET 20
#define VESA_MODE_BPP_OFFSET 25
#define VESA_MODE_PHADDR_OFFSET 40
#define VESA_MODE_ATTRIBUTES_OFFSET 0
#define VESA_MODE_LIST_PTR_OFFSET 14
#define VESA_MODE_SCANLINE_OFFSET 16
#define VESA_MODE_WIDTH_OFFSET 18
#define VESA_MODE_HEIGHT_OFFSET 20
#define VESA_MODE_BPP_OFFSET 25
#define VESA_MODE_RED_MASK_OFFSET 31
#define VESA_MODE_RED_POS_OFFSET 32
#define VESA_MODE_GREEN_MASK_OFFSET 33
#define VESA_MODE_GREEN_POS_OFFSET 34
#define VESA_MODE_BLUE_MASK_OFFSET 35
#define VESA_MODE_BLUE_POS_OFFSET 36
#define VESA_MODE_PHADDR_OFFSET 40
 
#define VESA_END_OF_MODES 0xffff
#define VESA_END_OF_MODES 0xffff
 
#define VESA_OK 0x4f
#define VESA_OK 0x4f
 
#define VESA_GET_INFO 0x4f00
#define VESA_GET_MODE_INFO 0x4f01
#define VESA_SET_MODE 0x4f02
#define VESA_SET_PALETTE 0x4f09
#define VESA_GET_INFO 0x4f00
#define VESA_GET_MODE_INFO 0x4f01
#define VESA_SET_MODE 0x4f02
#define VESA_SET_PALETTE 0x4f09
 
.code32
vesa_init:
163,7 → 169,7
# try next mode
mov %gs:(%si), %cx
cmp $VESA_END_OF_MODES, %cx
jz no_mode
je no_mode
inc %si
inc %si
177,29 → 183,40
pop %di
pop %cx
cmp $VESA_OK, %al
jnz no_mode
jne no_mode
# check for proper attributes (supported, color, graphics, linear framebuffer)
mov VESA_MODE_ATTRIBUTES_OFFSET(%di), %ax
and $0x99, %ax
cmp $0x99, %ax
jne next_mode
# check for proper resolution
mov default_width - vesa_init, %ax
cmp VESA_MODE_WIDTH_OFFSET(%di), %ax
jnz next_mode
jne next_mode
mov default_height - vesa_init, %ax
cmp VESA_MODE_HEIGHT_OFFSET(%di), %ax
jnz next_mode
jne next_mode
# check for proper bpp
mov default_bpp - vesa_init, %al
cmp VESA_MODE_BPP_OFFSET(%di), %al
jz set_mode
je set_mode
mov $24, %al
cmp default_bpp - vesa_init, %al
jnz next_mode
jne next_mode
# for 24 bpp modes accept also 32 bit bpp
mov $32, %al
cmp VESA_MODE_BPP_OFFSET(%di), %al
jnz next_mode
jne next_mode
set_mode:
mov %cx, %bx
266,21 → 283,42
vga_not_set:
mov VESA_MODE_PHADDR_OFFSET(%di), %esi
mov VESA_MODE_WIDTH_OFFSET(%di), %ax
# store mode parameters
# eax = bpp[8] scanline[16]
# ebx = width[16] height[16]
# edx = red_mask[8] red_pos[8] green_mask[8] green_pos[8]
# esi = blue_mask[8] blue_pos[8]
# edi = linear frame buffer
mov VESA_MODE_BPP_OFFSET(%di), %al
xor %ah, %ah
shl $16, %eax
mov VESA_MODE_HEIGHT_OFFSET(%di), %ax
mov VESA_MODE_BPP_OFFSET(%di), %bl
xor %bh, %bh
mov VESA_MODE_SCANLINE_OFFSET(%di), %ax
mov VESA_MODE_WIDTH_OFFSET(%di), %bx
shl $16, %ebx
mov VESA_MODE_SCANLINE_OFFSET(%di), %bx
mov %eax, %edi
mov VESA_MODE_HEIGHT_OFFSET(%di), %bx
mov VESA_MODE_BLUE_MASK_OFFSET(%di), %dl
shl $8, %edx
mov VESA_MODE_BLUE_POS_OFFSET(%di), %dl
mov %edx, %esi
mov VESA_MODE_RED_MASK_OFFSET(%di), %dl
shl $8, %edx
mov VESA_MODE_RED_POS_OFFSET(%di), %dl
shl $8, %edx
mov VESA_MODE_GREEN_MASK_OFFSET(%di), %dl
shl $8, %edx
mov VESA_MODE_GREEN_POS_OFFSET(%di), %dl
mov VESA_MODE_PHADDR_OFFSET(%di), %edi
vesa_leave_real:
mov %cr0, %eax
or $1, %eax
mov %eax, %cr0
mov %cr0, %ecx
or $1, %ecx
mov %ecx, %cr0
jmp vesa_leave_real2
/branches/dynload/kernel/arch/ia32/src/boot/vesa_prot.inc
38,9 → 38,18
jmp skip_loop
skip_loop_done:
mov (%esi), %al
cmp $0, %al
je no_cmdline
space_loop:
mov (%esi), %al
cmp $0, %al
je no_cmdline
cmp $' ', %al
jne space_loop_done
inc %esi
jmp space_loop
space_loop_done:
# copy at most 23 characters from command line
73,11 → 82,26
vesa_meeting_point:
# returned back to protected mode
mov %esi, KA2PA(vesa_ph_addr)
mov %di, KA2PA(vesa_height)
shr $16, %edi
mov %di, KA2PA(vesa_width)
mov %bx, KA2PA(vesa_scanline)
mov %ax, KA2PA(vesa_scanline)
shr $16, %eax
mov %ax, KA2PA(vesa_bpp)
mov %bx, KA2PA(vesa_height)
shr $16, %ebx
mov %bx, KA2PA(vesa_bpp)
mov %bx, KA2PA(vesa_width)
mov %dl, KA2PA(vesa_green_pos)
shr $8, %edx
mov %dl, KA2PA(vesa_green_mask)
shr $8, %edx
mov %dl, KA2PA(vesa_red_pos)
shr $8, %edx
mov %dl, KA2PA(vesa_red_mask)
mov %esi, %edx
mov %dl, KA2PA(vesa_blue_pos)
shr $8, %edx
mov %dl, KA2PA(vesa_blue_mask)
mov %edi, KA2PA(vesa_ph_addr)
#endif