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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2017-04-05 17:54:47 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-04-06 19:58:53 +1000 |
| commit | 22bd64a621cc80beeb009abec3d3df98ec0131c5 (patch) | |
| tree | 5fe6528fce0bc67a496d4e720e938453fe2f5328 /arch/powerpc/include/asm/bitops.h | |
| parent | eeea1a434ddedbb5aaeac1a8661445b3ae3eb539 (diff) | |
| download | linux-22bd64a621cc80beeb009abec3d3df98ec0131c5.tar.bz2 | |
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>
Diffstat (limited to 'arch/powerpc/include/asm/bitops.h')
| -rw-r--r-- | arch/powerpc/include/asm/bitops.h | 8 |
1 files changed, 8 insertions, 0 deletions
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 */ |