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kernel: Support more than one I/O APIC and 24 interrupts.

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git-svn-id: svn://kolibrios.org@7733 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Ivan B
2020-03-02 04:25:30 +00:00
parent 57b2e6af66
commit cbceb320e8
5 changed files with 154 additions and 70 deletions
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23
kernel/trunk/init.inc
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@@ -1,6 +1,6 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2004-2020. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -429,7 +429,7 @@ 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
acpi_ioapic_base rd MAX_IOAPICS
acpi_hpet_base rd 1
hpet_base rd 1
hpet_period rd 1
@@ -581,14 +581,18 @@ check_acpi:
inc [cpu_count-OS_BASE]
add edi, 4
mov [ioapic_cnt-OS_BASE], 0
lea edx, [eax+44]
mov ecx, [eax+4]
add ecx, eax
.check:
mov eax, [edx]
cmp al, 0
jne .io_apic
je .lapic
cmp al, 1
je .io_apic
jmp .next
.lapic:
shr eax, 24 ; get APIC ID
cmp eax, ebx ; skip self
je .next
@@ -611,11 +615,12 @@ check_acpi:
ret
.io_apic:
cmp al, 1
jne .next
mov eax, [edx+4]
mov [acpi_ioapic_base-OS_BASE], eax
mov eax, [ioapic_cnt-OS_BASE]
push dword[edx+4]
pop [acpi_ioapic_base-OS_BASE+eax*4]
push dword[edx+8]
pop [ioapic_gsi_base-OS_BASE+eax*4]
inc [ioapic_cnt-OS_BASE]
jmp .next
HPET_PERIOD = 0x0004