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kernel: removed unnecessary duplication of BOOT_VAR

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git-svn-id: svn://kolibrios.org@3732 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
2013-06-29 08:26:56 +00:00
parent 976e2d52bf
commit f03da1efd4
6 changed files with 215 additions and 222 deletions
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35
kernel/trunk/init.inc
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@@ -15,7 +15,7 @@ MEM_UC equ 0 ;uncached memory
align 4
proc mem_test
; if we have BIOS with fn E820, skip the test
cmp dword [BOOT_VAR-OS_BASE + 0x9100], 0
cmp dword [BOOT_VARS-OS_BASE + 0x9100], 0
jnz .ret
mov eax, cr0
@@ -35,12 +35,12 @@ proc mem_test
and eax, not (CR0_CD+CR0_NW) ;enable caching
mov cr0, eax
inc dword [BOOT_VAR-OS_BASE + 0x9100]
inc dword [BOOT_VARS-OS_BASE + 0x9100]
xor eax, eax
mov [BOOT_VAR-OS_BASE + 0x9104], eax
mov [BOOT_VAR-OS_BASE + 0x9108], eax
mov [BOOT_VAR-OS_BASE + 0x910C], edi
mov [BOOT_VAR-OS_BASE + 0x9110], eax
mov [BOOT_VARS-OS_BASE + 0x9104], eax
mov [BOOT_VARS-OS_BASE + 0x9108], eax
mov [BOOT_VARS-OS_BASE + 0x910C], edi
mov [BOOT_VARS-OS_BASE + 0x9110], eax
.ret:
ret
endp
@@ -48,7 +48,7 @@ endp
align 4
proc init_mem
; calculate maximum allocatable address and number of allocatable pages
mov edi, BOOT_VAR-OS_BASE + 0x9104
mov edi, BOOT_VARS-OS_BASE + 0x9104
mov ecx, [edi-4]
xor esi, esi; esi will hold total amount of memory
xor edx, edx; edx will hold maximum allocatable address
@@ -195,7 +195,7 @@ proc init_page_map
rep stosd
; scan through memory map and mark free areas as available
mov ebx, BOOT_VAR-OS_BASE + 0x9104
mov ebx, BOOT_VARS-OS_BASE + 0x9104
mov edx, [ebx-4]
.scanmap:
cmp [ebx+16], byte 1
@@ -453,6 +453,9 @@ acpi_dev_data rd 1
acpi_dev_size rd 1
acpi_rsdt_base rd 1
acpi_fadt_base rd 1
acpi_dsdt_base rd 1
acpi_dsdt_size rd 1
acpi_madt_base rd 1
acpi_ioapic_base rd 1
@@ -464,6 +467,7 @@ ACPI_HI_RSDP_WINDOW_START equ 0x000E0000
ACPI_HI_RSDP_WINDOW_END equ 0x00100000
ACPI_RSDP_CHECKSUM_LENGTH equ 20
ACPI_MADT_SIGN equ 0x43495041
ACPI_FADT_SIGN equ 0x50434146
acpi_locate:
@@ -535,9 +539,22 @@ check_acpi:
jz .done
mov ecx, [eax+16]
mov edx, ACPI_MADT_SIGN
mov edx, 0x50434146
mov [acpi_rsdt_base-OS_BASE], ecx
call rsdt_find
mov [acpi_fadt_base-OS_BASE], eax
test eax, eax
jz @f
mov eax, [eax+40]
mov [acpi_dsdt_base-OS_BASE], eax
mov eax, [eax+4]
mov [acpi_dsdt_size-OS_BASE], eax
@@:
mov edx, ACPI_MADT_SIGN
mov ecx, [acpi_rsdt_base-OS_BASE]
call rsdt_find
test eax, eax
jz .done