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authorAnton Blanchard <anton@samba.org>2013-08-07 02:01:46 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-08-14 15:33:35 +1000
commit7ffcf8ec26f4b94b95b1297131d223b121d951e5 (patch)
tree7b4b47eaeafe56c253350b14470fecf03b40277f /arch/powerpc/lib
parentc72cd555e828b710bce8c3635254dbb483397142 (diff)
downloadop-kernel-dev-7ffcf8ec26f4b94b95b1297131d223b121d951e5.zip
op-kernel-dev-7ffcf8ec26f4b94b95b1297131d223b121d951e5.tar.gz
powerpc: Fix little endian lppaca, slb_shadow and dtl_entry
The lppaca, slb_shadow and dtl_entry hypervisor structures are big endian, so we have to byte swap them in little endian builds. LE KVM hosts will also need to be fixed but for now add an #error to remind us. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/lib')
-rw-r--r--arch/powerpc/lib/locks.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/lib/locks.c b/arch/powerpc/lib/locks.c
index bb7cfec..0c9c8d7 100644
--- a/arch/powerpc/lib/locks.c
+++ b/arch/powerpc/lib/locks.c
@@ -32,7 +32,7 @@ void __spin_yield(arch_spinlock_t *lock)
return;
holder_cpu = lock_value & 0xffff;
BUG_ON(holder_cpu >= NR_CPUS);
- yield_count = lppaca_of(holder_cpu).yield_count;
+ yield_count = be32_to_cpu(lppaca_of(holder_cpu).yield_count);
if ((yield_count & 1) == 0)
return; /* virtual cpu is currently running */
rmb();
@@ -57,7 +57,7 @@ void __rw_yield(arch_rwlock_t *rw)
return; /* no write lock at present */
holder_cpu = lock_value & 0xffff;
BUG_ON(holder_cpu >= NR_CPUS);
- yield_count = lppaca_of(holder_cpu).yield_count;
+ yield_count = be32_to_cpu(lppaca_of(holder_cpu).yield_count);
if ((yield_count & 1) == 0)
return; /* virtual cpu is currently running */
rmb();
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