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Diffstat (limited to 'arch/mips/dec/ecc-berr.c')
-rw-r--r--arch/mips/dec/ecc-berr.c68
1 files changed, 33 insertions, 35 deletions
diff --git a/arch/mips/dec/ecc-berr.c b/arch/mips/dec/ecc-berr.c
index 133fb7c48e6..2a66e908f6a 100644
--- a/arch/mips/dec/ecc-berr.c
+++ b/arch/mips/dec/ecc-berr.c
@@ -1,12 +1,10 @@
/*
- * linux/arch/mips/dec/ecc-berr.c
- *
* Bus error event handling code for systems equipped with ECC
* handling logic, i.e. DECstation/DECsystem 5000/200 (KN02),
* 5000/240 (KN03), 5000/260 (KN05) and DECsystem 5900 (KN03),
* 5900/260 (KN05) systems.
*
- * Copyright (c) 2003 Maciej W. Rozycki
+ * Copyright (c) 2003, 2005 Maciej W. Rozycki
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -15,16 +13,18 @@
*/
#include <linux/init.h>
+#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/sched.h>
-#include <linux/spinlock.h>
#include <linux/types.h>
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
#include <asm/cpu.h>
+#include <asm/cpu-type.h>
+#include <asm/irq_regs.h>
#include <asm/processor.h>
-#include <asm/system.h>
+#include <asm/ptrace.h>
#include <asm/traps.h>
#include <asm/dec/ecc.h>
@@ -57,7 +57,7 @@ static int dec_ecc_be_backend(struct pt_regs *regs, int is_fixup, int invoker)
const char *kind, *agent, *cycle, *event;
const char *status = "", *xbit = "", *fmt = "";
- dma_addr_t address;
+ unsigned long address;
u16 syn = 0, sngl;
int i = 0;
@@ -66,7 +66,7 @@ static int dec_ecc_be_backend(struct pt_regs *regs, int is_fixup, int invoker)
u32 chksyn = *kn0x_chksyn;
int action = MIPS_BE_FATAL;
- /* For non-ECC ack ASAP, so any subsequent errors get caught. */
+ /* For non-ECC ack ASAP, so that any subsequent errors get caught. */
if ((erraddr & (KN0X_EAR_VALID | KN0X_EAR_ECCERR)) == KN0X_EAR_VALID)
dec_ecc_be_ack();
@@ -74,7 +74,7 @@ static int dec_ecc_be_backend(struct pt_regs *regs, int is_fixup, int invoker)
if (!(erraddr & KN0X_EAR_VALID)) {
/* No idea what happened. */
- printk(KERN_ALERT "Unidentified bus error %s.\n", kind);
+ printk(KERN_ALERT "Unidentified bus error %s\n", kind);
return action;
}
@@ -126,7 +126,7 @@ static int dec_ecc_be_backend(struct pt_regs *regs, int is_fixup, int invoker)
/* Ack now, no rewrite will happen. */
dec_ecc_be_ack();
- fmt = KERN_ALERT "%s" "invalid.\n";
+ fmt = KERN_ALERT "%s" "invalid\n";
} else {
sngl = syn & KN0X_ESR_SNGLO;
syn &= KN0X_ESR_SYNLO;
@@ -144,7 +144,8 @@ static int dec_ecc_be_backend(struct pt_regs *regs, int is_fixup, int invoker)
} else if (!sngl) {
status = dbestr;
} else {
- volatile u32 *ptr = (void *)KSEG1ADDR(address);
+ volatile u32 *ptr =
+ (void *)CKSEG1ADDR(address);
*ptr = *ptr; /* Rewrite. */
iob();
@@ -160,12 +161,12 @@ static int dec_ecc_be_backend(struct pt_regs *regs, int is_fixup, int invoker)
if (syn == 0x01) {
fmt = KERN_ALERT "%s"
"%#04x -- %s bit error "
- "at check bit C%s.\n";
+ "at check bit C%s\n";
xbit = "X";
} else {
fmt = KERN_ALERT "%s"
"%#04x -- %s bit error "
- "at check bit C%s%u.\n";
+ "at check bit C%s%u\n";
}
i = syn >> 2;
} else {
@@ -175,16 +176,16 @@ static int dec_ecc_be_backend(struct pt_regs *regs, int is_fixup, int invoker)
if (i < 32)
fmt = KERN_ALERT "%s"
"%#04x -- %s bit error "
- "at data bit D%s%u.\n";
+ "at data bit D%s%u\n";
else
fmt = KERN_ALERT "%s"
- "%#04x -- %s bit error.\n";
+ "%#04x -- %s bit error\n";
}
}
}
if (action != MIPS_BE_FIXUP)
- printk(KERN_ALERT "Bus error %s: %s %s %s at %#010lx.\n",
+ printk(KERN_ALERT "Bus error %s: %s %s %s at %#010lx\n",
kind, agent, cycle, event, address);
if (action != MIPS_BE_FIXUP && erraddr & KN0X_EAR_ECCERR)
@@ -198,16 +199,18 @@ int dec_ecc_be_handler(struct pt_regs *regs, int is_fixup)
return dec_ecc_be_backend(regs, is_fixup, 0);
}
-irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id)
{
+ struct pt_regs *regs = get_irq_regs();
+
int action = dec_ecc_be_backend(regs, 0, 1);
if (action == MIPS_BE_DISCARD)
- return IRQ_NONE;
+ return IRQ_HANDLED;
/*
- * FIXME: Find affected processes and kill them, otherwise we
- * must die.
+ * FIXME: Find the affected processes and kill them, otherwise
+ * we must die.
*
* The interrupt is asynchronously delivered thus EPC and RA
* may be irrelevant, but are printed for a reference.
@@ -225,16 +228,13 @@ irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id, struct pt_regs *regs)
*/
static inline void dec_kn02_be_init(void)
{
- volatile u32 *csr = (void *)KN02_CSR_BASE;
- unsigned long flags;
-
- kn0x_erraddr = (void *)(KN02_SLOT_BASE + KN02_ERRADDR);
- kn0x_chksyn = (void *)(KN02_SLOT_BASE + KN02_CHKSYN);
+ volatile u32 *csr = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CSR);
- spin_lock_irqsave(&kn02_lock, flags);
+ kn0x_erraddr = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_ERRADDR);
+ kn0x_chksyn = (void *)CKSEG1ADDR(KN02_SLOT_BASE + KN02_CHKSYN);
/* Preset write-only bits of the Control Register cache. */
- cached_kn02_csr = *csr | KN03_CSR_LEDS;
+ cached_kn02_csr = *csr | KN02_CSR_LEDS;
/* Set normal ECC detection and generation. */
cached_kn02_csr &= ~(KN02_CSR_DIAGCHK | KN02_CSR_DIAGGEN);
@@ -242,18 +242,16 @@ static inline void dec_kn02_be_init(void)
cached_kn02_csr |= KN02_CSR_CORRECT;
*csr = cached_kn02_csr;
iob();
-
- spin_unlock_irqrestore(&kn02_lock, flags);
}
static inline void dec_kn03_be_init(void)
{
- volatile u32 *mcr = (void *)(KN03_SLOT_BASE + IOASIC_MCR);
- volatile u32 *mbcs = (void *)(KN03_SLOT_BASE + KN05_MB_CSR);
+ volatile u32 *mcr = (void *)CKSEG1ADDR(KN03_SLOT_BASE + IOASIC_MCR);
+ volatile u32 *mbcs = (void *)CKSEG1ADDR(KN4K_SLOT_BASE + KN4K_MB_CSR);
+
+ kn0x_erraddr = (void *)CKSEG1ADDR(KN03_SLOT_BASE + IOASIC_ERRADDR);
+ kn0x_chksyn = (void *)CKSEG1ADDR(KN03_SLOT_BASE + IOASIC_CHKSYN);
- kn0x_erraddr = (void *)(KN03_SLOT_BASE + IOASIC_ERRADDR);
- kn0x_chksyn = (void *)(KN03_SLOT_BASE + IOASIC_CHKSYN);
-
/*
* Set normal ECC detection and generation, enable ECC correction.
* For KN05 we also need to make sure EE (?) is enabled in the MB.
@@ -263,8 +261,8 @@ static inline void dec_kn03_be_init(void)
*/
*mcr = (*mcr & ~(KN03_MCR_DIAGCHK | KN03_MCR_DIAGGEN)) |
KN03_MCR_CORRECT;
- if (current_cpu_data.cputype == CPU_R4400SC)
- *mbcs |= KN05_MB_CSR_EE;
+ if (current_cpu_type() == CPU_R4400SC)
+ *mbcs |= KN4K_MB_CSR_EE;
fast_iob();
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-09 11:44:08 +0000