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| author | Paul Burton <paul.burton@imgtec.com> | 2016-10-05 18:18:17 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-10-06 18:02:18 +0200 |
| commit | dabdc1853d59b355eaa679b8856016a7366da9af (patch) | |
| tree | 01cd0f619f8062353aa77724fd4b9857e6c00a3f /arch | |
| parent | 20d330645cfb8cfecfb82b369e4d3084e429e68a (diff) | |
| download | linux-stable-dabdc1853d59b355eaa679b8856016a7366da9af.tar.gz linux-stable-dabdc1853d59b355eaa679b8856016a7366da9af.tar.bz2 linux-stable-dabdc1853d59b355eaa679b8856016a7366da9af.zip | |
MIPS: Print CM error reports upon bus errors
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@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14350/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/kernel/traps.c | 3 | ||||
| -rw-r--r-- | arch/mips/mti-malta/malta-int.c | 15 | ||||
| -rw-r--r-- | 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 0c0270c29cd1..1f5fdee1dfc3 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -49,6 +49,7 @@ #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> @@ -445,6 +446,8 @@ 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 9f83224292d9..cb675ec6f283 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -290,18 +290,3 @@ void __init arch_init_irq(void) 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 f1b6074828b1..a01d5debfcaf 100644 --- a/arch/mips/mti-malta/malta-setup.c +++ b/arch/mips/mti-malta/malta-setup.c @@ -42,9 +42,6 @@ #define ROCIT_CONFIG_GEN0 0x1f403000 #define ROCIT_CONFIG_GEN0_PCI_IOCU BIT(7) -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", @@ -301,7 +298,4 @@ 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; } |