xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MIPS: Print CM error reports upon bus errors

Browse Source 
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>
This commit is contained in:
Paul Burton
2016-10-05 18:18:17 +01:00
committed by Ralf Baechle
parent 20d330645c
commit dabdc1853d
3 changed files with 3 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/mips/kernel/traps.c
View File

@@ -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: