powerpc: Move branch instruction from ACCOUNT_CPU_USER_ENTRY to caller

Browse source

[PATCH 1/6] powerpc: Move branch instruction from ACCOUNT_CPU_USER_ENTRY to caller

The first instruction in ACCOUNT_CPU_USER_ENTRY is 'beq' which checks for
exceptions coming from kernel mode. PPR value will be saved immediately after
ACCOUNT_CPU_USER_ENTRY and is also for user level exceptions. So moved this
branch instruction in the caller code.

Signed-off-by: Haren Myneni <haren@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

...

This commit is contained in:

Haren Myneni 2012-12-06 21:46:37 +00:00 • committed by Benjamin Herrenschmidt

parent 15fab56eca

commit 5d75b26443

4 changed files with 6 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

arch/powerpc/include/asm/exception-64s.h

View file

2

arch/powerpc/include/asm/ppc_asm.h

View file

3

arch/powerpc/kernel/entry_64.S

View file

3

arch/powerpc/kernel/exceptions-64e.S

View file