From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Wed, 5 Apr 2017 07:54:47 +0000 (+1000)
Subject: powerpc: Add more PPC bit conversion macros
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=22bd64a621cc80beeb009abec3d3df98ec0131c5;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

powerpc: Add more PPC bit conversion macros

Add 32 and 8 bit variants

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---

diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index bc5fdfd22788..33a24fdd7958 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 */