f134bd1ebc
Fix missing prototypes by making not shared functions static and adding others to ip27-common.h. Also drop ip27-hubio.c as it's not used for a long time. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
99 lines
3.0 KiB
C
99 lines
3.0 KiB
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 (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/signal.h> /* for SIGBUS */
|
|
#include <linux/sched.h> /* schow_regs(), force_sig() */
|
|
#include <linux/sched/debug.h>
|
|
#include <linux/sched/signal.h>
|
|
|
|
#include <asm/ptrace.h>
|
|
#include <asm/sn/addrs.h>
|
|
#include <asm/sn/agent.h>
|
|
#include <asm/sn/arch.h>
|
|
#include <asm/tlbdebug.h>
|
|
#include <asm/traps.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
#include "ip27-common.h"
|
|
|
|
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 }
|
|
};
|
|
union pi_err_stat0 st0;
|
|
union pi_err_stat1 st1;
|
|
|
|
st0.pi_stat0_word = errst0;
|
|
st1.pi_stat1_word = errst1;
|
|
|
|
if (!st0.pi_stat0_fmt.s0_valid) {
|
|
pr_info("Hub does not contain valid error information\n");
|
|
return;
|
|
}
|
|
|
|
pr_info("Hub has valid error information:\n");
|
|
if (st0.pi_stat0_fmt.s0_ovr_run)
|
|
pr_info("Overrun is set. Error stack may contain additional "
|
|
"information.\n");
|
|
pr_info("Hub error address is %08lx\n",
|
|
(unsigned long)st0.pi_stat0_fmt.s0_addr);
|
|
pr_info("Incoming message command 0x%lx\n",
|
|
(unsigned long)st0.pi_stat0_fmt.s0_cmd);
|
|
pr_info("Supplemental field of incoming message is 0x%lx\n",
|
|
(unsigned long)st0.pi_stat0_fmt.s0_supl);
|
|
pr_info("T5 Rn (for RRB only) is 0x%lx\n",
|
|
(unsigned long)st0.pi_stat0_fmt.s0_t5_req);
|
|
pr_info("Error type is %s\n", err_type[st1.pi_stat1_fmt.s1_rw_rb]
|
|
[st0.pi_stat0_fmt.s0_err_type] ? : "invalid");
|
|
}
|
|
|
|
static 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%06llx\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);
|
|
}
|
|
|
|
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;
|
|
|
|
mips_set_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);
|
|
}
|