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| File: [Development] / linux-2.6-xfs / arch / m68knommu / platform / 68328 / ints.c (download)
Revision 1.6, Wed Sep 12 17:09:56 2007 UTC (10 years, 1 month ago) by tes.longdrop.melbourne.sgi.com
Update 2.6.x-xfs to 2.6.23-rc4. Also update fs/xfs with external mainline changes. There were 12 such missing commits that I detected: -------- commit ad690ef9e690f6c31f7d310b09ef1314bcec9033 Author: Al Viro <viro@ftp.linux.org.uk> xfs ioctl __user annotations commit 20c2df83d25c6a95affe6157a4c9cac4cf5ffaac Author: Paul Mundt <lethal@linux-sh.org> mm: Remove slab destructors from kmem_cache_create(). commit d0217ac04ca6591841e5665f518e38064f4e65bd Author: Nick Piggin <npiggin@suse.de> mm: fault feedback #1 commit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7 Author: Nick Piggin <npiggin@suse.de> mm: merge populate and nopage into fault (fixes nonlinear) commit d00806b183152af6d24f46f0c33f14162ca1262a Author: Nick Piggin <npiggin@suse.de> mm: fix fault vs invalidate race for linear mappings commit a569425512253992cc64ebf8b6d00a62f986db3e Author: Christoph Hellwig <hch@infradead.org> knfsd: exportfs: add exportfs.h header commit 831441862956fffa17b9801db37e6ea1650b0f69 Author: Rafael J. Wysocki <rjw@sisk.pl> Freezer: make kernel threads nonfreezable by default commit 8e1f936b73150f5095448a0fee6d4f30a1f9001d Author: Rusty Russell <rusty@rustcorp.com.au> mm: clean up and kernelify shrinker registration commit 5ffc4ef45b3b0a57872f631b4e4ceb8ace0d7496 Author: Jens Axboe <jens.axboe@oracle.com> sendfile: remove .sendfile from filesystems that use generic_file_sendfile() commit 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d Author: Rafael J. Wysocki <rjw@sisk.pl> Add suspend-related notifications for CPU hotplug commit 59c51591a0ac7568824f541f57de967e88adaa07 Author: Michael Opdenacker <michael@free-electrons.com> Fix occurrences of "the the " commit 0ceb331433e8aad9c5f441a965d7c681f8b9046f Author: Dmitriy Monakhov <dmonakhov@openvz.org> mm: move common segment checks to separate helper function -------- Merge of 2.6.x-xfs-melb:linux:29656b by kenmcd. |
/*
* linux/arch/m68knommu/platform/68328/ints.c
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*
* Copyright 1996 Roman Zippel
* Copyright 1999 D. Jeff Dionne <jeff@rt-control.com>
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/traps.h>
#include <asm/io.h>
#include <asm/machdep.h>
#if defined(CONFIG_M68328)
#include <asm/MC68328.h>
#elif defined(CONFIG_M68EZ328)
#include <asm/MC68EZ328.h>
#elif defined(CONFIG_M68VZ328)
#include <asm/MC68VZ328.h>
#endif
/* assembler routines */
asmlinkage void system_call(void);
asmlinkage void buserr(void);
asmlinkage void trap(void);
asmlinkage void trap3(void);
asmlinkage void trap4(void);
asmlinkage void trap5(void);
asmlinkage void trap6(void);
asmlinkage void trap7(void);
asmlinkage void trap8(void);
asmlinkage void trap9(void);
asmlinkage void trap10(void);
asmlinkage void trap11(void);
asmlinkage void trap12(void);
asmlinkage void trap13(void);
asmlinkage void trap14(void);
asmlinkage void trap15(void);
asmlinkage void trap33(void);
asmlinkage void trap34(void);
asmlinkage void trap35(void);
asmlinkage void trap36(void);
asmlinkage void trap37(void);
asmlinkage void trap38(void);
asmlinkage void trap39(void);
asmlinkage void trap40(void);
asmlinkage void trap41(void);
asmlinkage void trap42(void);
asmlinkage void trap43(void);
asmlinkage void trap44(void);
asmlinkage void trap45(void);
asmlinkage void trap46(void);
asmlinkage void trap47(void);
asmlinkage irqreturn_t bad_interrupt(int, void *);
asmlinkage irqreturn_t inthandler(void);
asmlinkage irqreturn_t inthandler1(void);
asmlinkage irqreturn_t inthandler2(void);
asmlinkage irqreturn_t inthandler3(void);
asmlinkage irqreturn_t inthandler4(void);
asmlinkage irqreturn_t inthandler5(void);
asmlinkage irqreturn_t inthandler6(void);
asmlinkage irqreturn_t inthandler7(void);
extern e_vector *_ramvec;
/* The number of spurious interrupts */
volatile unsigned int num_spurious;
/*
* This function should be called during kernel startup to initialize
* the machine vector table.
*/
void __init init_vectors(void)
{
int i;
/* set up the vectors */
for (i = 72; i < 256; ++i)
_ramvec[i] = (e_vector) bad_interrupt;
_ramvec[32] = system_call;
_ramvec[65] = (e_vector) inthandler1;
_ramvec[66] = (e_vector) inthandler2;
_ramvec[67] = (e_vector) inthandler3;
_ramvec[68] = (e_vector) inthandler4;
_ramvec[69] = (e_vector) inthandler5;
_ramvec[70] = (e_vector) inthandler6;
_ramvec[71] = (e_vector) inthandler7;
IVR = 0x40; /* Set DragonBall IVR (interrupt base) to 64 */
/* turn off all interrupts */
IMR = ~0;
}
/* The 68k family did not have a good way to determine the source
* of interrupts until later in the family. The EC000 core does
* not provide the vector number on the stack, we vector everything
* into one vector and look in the blasted mask register...
* This code is designed to be fast, almost constant time, not clean!
*/
void process_int(int vec, struct pt_regs *fp)
{
int irq;
int mask;
unsigned long pend = ISR;
while (pend) {
if (pend & 0x0000ffff) {
if (pend & 0x000000ff) {
if (pend & 0x0000000f) {
mask = 0x00000001;
irq = 0;
} else {
mask = 0x00000010;
irq = 4;
}
} else {
if (pend & 0x00000f00) {
mask = 0x00000100;
irq = 8;
} else {
mask = 0x00001000;
irq = 12;
}
}
} else {
if (pend & 0x00ff0000) {
if (pend & 0x000f0000) {
mask = 0x00010000;
irq = 16;
} else {
mask = 0x00100000;
irq = 20;
}
} else {
if (pend & 0x0f000000) {
mask = 0x01000000;
irq = 24;
} else {
mask = 0x10000000;
irq = 28;
}
}
}
while (! (mask & pend)) {
mask <<=1;
irq++;
}
do_IRQ(irq, fp);
pend &= ~mask;
}
}
void enable_vector(unsigned int irq)
{
IMR &= ~(1<<irq);
}
void disable_vector(unsigned int irq)
{
IMR |= (1<<irq);
}
void ack_vector(unsigned int irq)
{
/* Nothing needed */
}