If a bus error occurs on a system with a MIPS Coherence Manager (CM)
then the CM may hold useful diagnostic information. Printing this out
has so far been left up to boards, with the requirement that they
register a board_be_handler function & call mips_cm_error_decode() from
there.
In order to avoid boards other than Malta needing to duplicate this
code, call mips_cm_error_decode() automatically if the board registers
no board_be_handler, and remove the Malta implementation of that.
This patch results in no functional change, but removes a further piece
of platform-specific code.
Signed-off-by: Paul Burton <paul.burton@xxxxxxxxxx>
---
Changes in v2: None
arch/mips/kernel/traps.c | 3 +++
arch/mips/mti-malta/malta-int.c | 15 ---------------
arch/mips/mti-malta/malta-setup.c | 6 ------
3 files changed, 3 insertions(+), 21 deletions(-)
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 3de85be..e2c571d 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -48,6 +48,7 @@
#include <asm/fpu.h>
#include <asm/fpu_emulator.h>
#include <asm/idle.h>
+#include <asm/mips-cm.h>
#include <asm/mips-r2-to-r6-emul.h>
#include <asm/mipsregs.h>
#include <asm/mipsmtregs.h>
@@ -444,6 +445,8 @@ asmlinkage void do_be(struct pt_regs *regs)
if (board_be_handler)
action = board_be_handler(regs, fixup != NULL);
+ else
+ mips_cm_error_report();
switch (action) {
case MIPS_BE_DISCARD:
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index c6a6c7a..548130d 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -376,18 +376,3 @@ void __init arch_init_irq(void)
setup_irq(i8259_irq, &i8259irq);
setup_irq(corehi_irq, &corehi_irqaction);
}
-
-void malta_be_init(void)
-{
- /* Could change CM error mask register. */
-}
-
-int malta_be_handler(struct pt_regs *regs, int is_fixup)
-{
- /* This duplicates the handling in do_be which seems wrong */
- int retval = is_fixup ? MIPS_BE_FIXUP : MIPS_BE_FATAL;
-
- mips_cm_error_report();
-
- return retval;
-}
diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c
index d7d151f..2f25930 100644
--- a/arch/mips/mti-malta/malta-setup.c
+++ b/arch/mips/mti-malta/malta-setup.c
@@ -39,9 +39,6 @@
#include <linux/console.h>
#endif
-extern void malta_be_init(void);
-extern int malta_be_handler(struct pt_regs *regs, int is_fixup);
-
static struct resource standard_io_resources[] = {
{
.name = "dma1",
@@ -295,7 +292,4 @@ void __init plat_mem_setup(void)
#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
screen_info_setup();
#endif
-
- board_be_init = malta_be_init;
- board_be_handler = malta_be_handler;
}
--
2.9.3
