diff options
Diffstat (limited to 'arch/powerpc/kernel/io.c')
| -rw-r--r-- | arch/powerpc/kernel/io.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/io.c b/arch/powerpc/kernel/io.c index 80a3209acef..e98180686b3 100644 --- a/arch/powerpc/kernel/io.c +++ b/arch/powerpc/kernel/io.c @@ -22,12 +22,16 @@ #include <linux/module.h> #include <asm/io.h> +#include <asm/firmware.h> +#include <asm/bug.h> void _insb(volatile u8 __iomem *port, void *buf, long count) { u8 *tbuf = buf; u8 tmp; + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + if (unlikely(count <= 0)) return; asm volatile("sync"); @@ -44,6 +48,8 @@ void _outsb(volatile u8 __iomem *port, const void *buf, long count) { const u8 *tbuf = buf; + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + if (unlikely(count <= 0)) return; asm volatile("sync"); @@ -59,6 +65,8 @@ void _insw_ns(volatile u16 __iomem *port, void *buf, long count) u16 *tbuf = buf; u16 tmp; + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + if (unlikely(count <= 0)) return; asm volatile("sync"); @@ -75,6 +83,8 @@ void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count) { const u16 *tbuf = buf; + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + if (unlikely(count <= 0)) return; asm volatile("sync"); @@ -90,6 +100,8 @@ void _insl_ns(volatile u32 __iomem *port, void *buf, long count) u32 *tbuf = buf; u32 tmp; + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + if (unlikely(count <= 0)) return; asm volatile("sync"); @@ -106,6 +118,8 @@ void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count) { const u32 *tbuf = buf; + BUG_ON(firmware_has_feature(FW_FEATURE_ISERIES)); + if (unlikely(count <= 0)) return; asm volatile("sync"); |