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| author | Simon Guo <wei.guo.simon@gmail.com> | 2018-06-07 09:57:52 +0800 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-07-24 22:03:20 +1000 |
| commit | f1ecbaf466be5a7a5c666b41eede6991caff8646 (patch) | |
| tree | 43dcfcbc73a16a6012e23f27e2ac036af5389143 | |
| parent | 2d9ee327adce5f6becea2dd51d282a6183e40b0f (diff) | |
| download | lwn-f1ecbaf466be5a7a5c666b41eede6991caff8646.tar.gz lwn-f1ecbaf466be5a7a5c666b41eede6991caff8646.zip | |
powerpc: add vcmpequd/vcmpequb ppc instruction macro
Some old tool chains don't know about instructions like vcmpequd.
This patch adds .long macro for vcmpequd and vcmpequb, which is
a preparation to optimize ppc64 memcmp with VMX instructions.
Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/include/asm/ppc-opcode.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index 4436887bc415..c103caf99897 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -367,6 +367,8 @@ #define PPC_INST_STFDX 0x7c0005ae #define PPC_INST_LVX 0x7c0000ce #define PPC_INST_STVX 0x7c0001ce +#define PPC_INST_VCMPEQUD 0x100000c7 +#define PPC_INST_VCMPEQUB 0x10000006 /* macros to insert fields into opcodes */ #define ___PPC_RA(a) (((a) & 0x1f) << 16) @@ -397,6 +399,7 @@ #define __PPC_BI(s) (((s) & 0x1f) << 16) #define __PPC_CT(t) (((t) & 0x0f) << 21) #define __PPC_SPR(r) ((((r) & 0x1f) << 16) | ((((r) >> 5) & 0x1f) << 11)) +#define __PPC_RC21 (0x1 << 10) /* * Only use the larx hint bit on 64bit CPUs. e500v1/v2 based CPUs will treat a @@ -568,4 +571,12 @@ ((IH & 0x7) << 21)) #define PPC_INVALIDATE_ERAT PPC_SLBIA(7) +#define VCMPEQUD_RC(vrt, vra, vrb) stringify_in_c(.long PPC_INST_VCMPEQUD | \ + ___PPC_RT(vrt) | ___PPC_RA(vra) | \ + ___PPC_RB(vrb) | __PPC_RC21) + +#define VCMPEQUB_RC(vrt, vra, vrb) stringify_in_c(.long PPC_INST_VCMPEQUB | \ + ___PPC_RT(vrt) | ___PPC_RA(vra) | \ + ___PPC_RB(vrb) | __PPC_RC21) + #endif /* _ASM_POWERPC_PPC_OPCODE_H */ |