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author | Ingo Molnar <mingo@kernel.org> | 2018-04-12 09:42:34 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2018-04-12 09:42:34 +0200 |
commit | ef389b734691cdc8beb009dd402135dcdcb86a56 (patch) | |
tree | 9523a37db93cb7c7874a5f18b4d9a7014898b814 /arch/tile/lib/string-endian.h | |
parent | a774635db5c430cbf21fa5d2f2df3d23aaa8e782 (diff) | |
parent | c76fc98260751e71c884dc1a18a07e427ef033b5 (diff) |
Merge branch 'WIP.x86/asm' into x86/urgent, because the topic is ready
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/tile/lib/string-endian.h')
-rw-r--r-- | arch/tile/lib/string-endian.h | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/arch/tile/lib/string-endian.h b/arch/tile/lib/string-endian.h deleted file mode 100644 index 2e49cbfe9371..000000000000 --- a/arch/tile/lib/string-endian.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Copyright 2013 Tilera Corporation. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation, version 2. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for - * more details. - * - * Provide a mask based on the pointer alignment that - * sets up non-zero bytes before the beginning of the string. - * The MASK expression works because shift counts are taken mod 64. - * Also, specify how to count "first" and "last" bits - * when the bits have been read as a word. - */ - -#include <asm/byteorder.h> - -#ifdef __LITTLE_ENDIAN -#define MASK(x) (__insn_shl(1ULL, (x << 3)) - 1) -#define NULMASK(x) ((2ULL << x) - 1) -#define CFZ(x) __insn_ctz(x) -#define REVCZ(x) __insn_clz(x) -#else -#define MASK(x) (__insn_shl(-2LL, ((-x << 3) - 1))) -#define NULMASK(x) (-2LL << (63 - x)) -#define CFZ(x) __insn_clz(x) -#define REVCZ(x) __insn_ctz(x) -#endif - -/* - * Create eight copies of the byte in a uint64_t. Byte Shuffle uses - * the bytes of srcB as the index into the dest vector to select a - * byte. With all indices of zero, the first byte is copied into all - * the other bytes. - */ -static inline uint64_t copy_byte(uint8_t byte) -{ - return __insn_shufflebytes(byte, 0, 0); -} |