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microblaze: generic atomic64 support 

This tiny patch adds generic atomic64 support for the Microblaze
architecture.

The patch is against the latest linux-2.6-microblaze tree. It also
fixes the kernel build for microblaze:

Error log:
CC kernel/trace/trace_clock.o
kernel/trace/trace_clock.c:117: error: expected '=', ',', ';', 'asm'
or '__attribute__' before 'trace_counter'
kernel/trace/trace_clock.c: In function 'trace_clock_counter':
kernel/trace/trace_clock.c:126: error: implicit declaration of
function 'atomic64_add_return'
kernel/trace/trace_clock.c:126: error: 'trace_counter' undeclared
(first use in this function)
kernel/trace/trace_clock.c:126: error: (Each undeclared identifier is
reported only once
kernel/trace/trace_clock.c:126: error: for each function it appears in.)
make[2]: *** [kernel/trace/trace_clock.o] Error 1
make[1]: *** [kernel/trace] Error 2
make: *** [kernel] Error 2

Signed-off-by: Ariane Keller <ariane.keller@tik.ee.ethz.ch>
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Daniel Borkmann 2012-01-19 12:37:13 +01:00 committed by Michal Simek
parent dcd6c92267
commit eacb6ec9ae
2 changed files with 2 additions and 0 deletions
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1
arch/microblaze/Kconfig
View File

@ -19,6 +19,7 @@ config MICROBLAZE
select GENERIC_IRQ_SHOW select GENERIC_IRQ_SHOW
select GENERIC_PCI_IOMAP select GENERIC_PCI_IOMAP
select GENERIC_CPU_DEVICES select GENERIC_CPU_DEVICES
select GENERIC_ATOMIC64
config SWAP config SWAP
def_bool n def_bool n

1
arch/microblaze/include/asm/atomic.h
View File

@ -2,6 +2,7 @@
#define _ASM_MICROBLAZE_ATOMIC_H #define _ASM_MICROBLAZE_ATOMIC_H
#include <asm-generic/atomic.h> #include <asm-generic/atomic.h>
#include <asm-generic/atomic64.h>
/* /*
* Atomically test *v and decrement if it is greater than 0. * Atomically test *v and decrement if it is greater than 0.