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\ *****************************************************************************
\ * Copyright (c) 2004, 2008 IBM Corporation
\ * All rights reserved.
\ * This program and the accompanying materials
\ * are made available under the terms of the BSD License
\ * which accompanies this distribution, and is available at
\ * http://www.opensource.org/licenses/bsd-license.php
\ *
\ * Contributors:
\ * IBM Corporation - initial implementation
\ ****************************************************************************/
\ ( ioapic-addr -- )
\ IO-APIC setup.
CONSTANT ioapic
: ioapic@ ( offset -- x ) ioapic rb! ioapic 10 + rl@-le ;
: ioapic! ( x offset -- ) ioapic rb! ioapic 10 + rl!-le ;
: init-ioapic ( irq# -- )
1a000 or 1 ioapic@ 10 rshift 1+ 0 ?DO
0 i 2* 11 + ioapic! dup
\ move all ISA IRQs to 40 and higher,
\ as to not conflict with U3/U4 internal
\ IRQs. ISA IRQs are positive edge.
dup ff and 0c < IF a000 - 40 + THEN
i 2* 10 + ioapic! 1+ LOOP drop
;
: dump-ioapic ( -- )
1 ioapic@ 10 rshift 1+
dup cr . ." irqs" 0 ?DO
cr i 2 0.r space i 2* 11 + ioapic@ 8 0.r
i 2* 10 + ioapic@ 8 0.r LOOP
;
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