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| author | Chris Metcalf <cmetcalf@tilera.com> | 2011-05-16 13:59:39 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2011-05-19 22:55:49 -0400 |
| commit | 8aaf1dda42576b0f8dffb004065baa806f4df9b6 (patch) | |
| tree | e9376caaf70b54e4b236840a1cc77a443c07b341 /arch/tile/kernel/single_step.c | |
| parent | 4800a5bb13c09a572f7c74662a77c9eca229eba1 (diff) | |
arch/tile: use better definitions of xchg() and cmpxchg()
These definitions use a ({}) construct to avoid some cases where
we were getting warnings about unused return values. We also
promote the definition to the common <asm/atomic.h>, since it applies
to both the 32- and 64-bit atomics.
In addition, define __HAVE_ARCH_CMPXCHG for TILE-Gx since it has
efficient direct atomic instructions.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/single_step.c')
0 files changed, 0 insertions, 0 deletions