Return to ip27-berr.c CVS log

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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.

/*
 * 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 (C) 1994, 1995, 1996, 1999, 2000 by Ralf Baechle
 * Copyright (C) 1999, 2000 by Silicon Graphics
 * Copyright (C) 2002  Maciej W. Rozycki
 */
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/signal.h>	/* for SIGBUS */
#include <linux/sched.h>	/* schow_regs(), force_sig() */

#include <asm/module.h>
#include <asm/sn/addrs.h>
#include <asm/sn/arch.h>
#include <asm/sn/sn0/hub.h>
#include <asm/tlbdebug.h>
#include <asm/traps.h>
#include <asm/uaccess.h>

extern void dump_tlb_all(void);

static void dump_hub_information(unsigned long errst0, unsigned long errst1)
{
	static char *err_type[2][8] = {
		{ NULL, "Uncached Partial Read PRERR", "DERR", "Read Timeout",
		  NULL, NULL, NULL, NULL },
		{ "WERR", "Uncached Partial Write", "PWERR", "Write Timeout",
		  NULL, NULL, NULL, NULL }
	};
	int wrb = errst1 & PI_ERR_ST1_WRBRRB_MASK;

	if (!(errst0 & PI_ERR_ST0_VALID_MASK)) {
		printk("Hub does not contain valid error information\n");
		return;
	}


	printk("Hub has valid error information:\n");
	if (errst0 & PI_ERR_ST0_OVERRUN_MASK)
		printk("Overrun is set.  Error stack may contain additional "
		       "information.\n");
	printk("Hub error address is %08lx\n",
	       (errst0 & PI_ERR_ST0_ADDR_MASK) >> (PI_ERR_ST0_ADDR_SHFT - 3));
	printk("Incoming message command 0x%lx\n",
	       (errst0 & PI_ERR_ST0_CMD_MASK) >> PI_ERR_ST0_CMD_SHFT);
	printk("Supplemental field of incoming message is 0x%lx\n",
	       (errst0 & PI_ERR_ST0_SUPPL_MASK) >> PI_ERR_ST0_SUPPL_SHFT);
	printk("T5 Rn (for RRB only) is 0x%lx\n",
	       (errst0 & PI_ERR_ST0_REQNUM_MASK) >> PI_ERR_ST0_REQNUM_SHFT);
	printk("Error type is %s\n", err_type[wrb]
	       [(errst0 & PI_ERR_ST0_TYPE_MASK) >> PI_ERR_ST0_TYPE_SHFT]
		? : "invalid");
}

int ip27_be_handler(struct pt_regs *regs, int is_fixup)
{
	unsigned long errst0, errst1;
	int data = regs->cp0_cause & 4;
	int cpu = LOCAL_HUB_L(PI_CPU_NUM);

	if (is_fixup)
		return MIPS_BE_FIXUP;

	printk("Slice %c got %cbe at 0x%lx\n", 'A' + cpu, data ? 'd' : 'i',
	       regs->cp0_epc);
	printk("Hub information:\n");
	printk("ERR_INT_PEND = 0x%06lx\n", LOCAL_HUB_L(PI_ERR_INT_PEND));
	errst0 = LOCAL_HUB_L(cpu ? PI_ERR_STATUS0_B : PI_ERR_STATUS0_A);
	errst1 = LOCAL_HUB_L(cpu ? PI_ERR_STATUS1_B : PI_ERR_STATUS1_A);
	dump_hub_information(errst0, errst1);
	show_regs(regs);
	dump_tlb_all();
	while(1);
	force_sig(SIGBUS, current);
}

void __init ip27_be_init(void)
{
	/* XXX Initialize all the Hub & Bridge error handling here.  */
	int cpu = LOCAL_HUB_L(PI_CPU_NUM);
	int cpuoff = cpu << 8;

	board_be_handler = ip27_be_handler;

	LOCAL_HUB_S(PI_ERR_INT_PEND,
	            cpu ? PI_ERR_CLEAR_ALL_B : PI_ERR_CLEAR_ALL_A);
	LOCAL_HUB_S(PI_ERR_INT_MASK_A + cpuoff, 0);
	LOCAL_HUB_S(PI_ERR_STACK_ADDR_A + cpuoff, 0);
	LOCAL_HUB_S(PI_ERR_STACK_SIZE, 0);	/* Disable error stack */
	LOCAL_HUB_S(PI_SYSAD_ERRCHK_EN, PI_SYSAD_CHECK_ALL);
}