[PATCH 03/12] powerpc: Add more PPC bit conversion macros
Benjamin Herrenschmidt
benh at kernel.crashing.org
Mon Mar 20 17:49:05 AEDT 2017
Add 32 and 8 bit variants
Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---
arch/powerpc/include/asm/bitops.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index bc5fdfd..33a24fd 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -55,6 +55,14 @@
#define PPC_BITEXTRACT(bits, ppc_bit, dst_bit) \
((((bits) >> PPC_BITLSHIFT(ppc_bit)) & 1) << (dst_bit))
+#define PPC_BITLSHIFT32(be) (32 - 1 - (be))
+#define PPC_BIT32(bit) (1UL << PPC_BITLSHIFT32(bit))
+#define PPC_BITMASK32(bs, be) ((PPC_BIT32(bs) - PPC_BIT32(be))|PPC_BIT32(bs))
+
+#define PPC_BITLSHIFT8(be) (8 - 1 - (be))
+#define PPC_BIT8(bit) (1UL << PPC_BITLSHIFT8(bit))
+#define PPC_BITMASK8(bs, be) ((PPC_BIT8(bs) - PPC_BIT8(be))|PPC_BIT8(bs))
+
#include <asm/barrier.h>
/* Macro for generating the ***_bits() functions */
--
2.9.3
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