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| author |   Sandipan Das <sandipan@linux.ibm.com> | 2019-02-22 12:23:27 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-02-26 00:05:16 +1100 |
| commit | 930d6288a26787d2e7f633705434171a506db9c5 (patch) | |
| tree | f6b92c0ae61d653e8e344f1fff439dfd3cf587f4 /arch/powerpc/include | |
| parent | powerpc: clean stack pointers naming (diff) | |
| download | linux-dev-930d6288a26787d2e7f633705434171a506db9c5.tar.xz linux-dev-930d6288a26787d2e7f633705434171a506db9c5.zip | |
powerpc: sstep: Add support for maddhd, maddhdu, maddld instructions
This adds emulation support for the following integer instructions:
* Multiply-Add High Doubleword (maddhd)
* Multiply-Add High Doubleword Unsigned (maddhdu)
* Multiply-Add Low Doubleword (maddld)
As suggested by Michael, this uses a raw .long for specifying the
instruction word when using inline assembly to retain compatibility
with older binutils.
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/ppc-opcode.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index 87b73aa56b53..2bc949414669 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -335,6 +335,9 @@ #define PPC_INST_MULLW 0x7c0001d6 #define PPC_INST_MULHWU 0x7c000016 #define PPC_INST_MULLI 0x1c000000 +#define PPC_INST_MADDHD 0x10000030 +#define PPC_INST_MADDHDU 0x10000031 +#define PPC_INST_MADDLD 0x10000033 #define PPC_INST_DIVWU 0x7c000396 #define PPC_INST_DIVD 0x7c0003d2 #define PPC_INST_RLWINM 0x54000000 @@ -377,6 +380,7 @@ /* macros to insert fields into opcodes */ #define ___PPC_RA(a) (((a) & 0x1f) << 16) #define ___PPC_RB(b) (((b) & 0x1f) << 11) +#define ___PPC_RC(c) (((c) & 0x1f) << 6) #define ___PPC_RS(s) (((s) & 0x1f) << 21) #define ___PPC_RT(t) ___PPC_RS(t) #define ___PPC_R(r) (((r) & 0x1) << 16) @@ -396,7 +400,7 @@ #define __PPC_WS(w) (((w) & 0x1f) << 11) #define __PPC_SH(s) __PPC_WS(s) #define __PPC_SH64(s) (__PPC_SH(s) | (((s) & 0x20) >> 4)) -#define __PPC_MB(s) (((s) & 0x1f) << 6) +#define __PPC_MB(s) ___PPC_RC(s) #define __PPC_ME(s) (((s) & 0x1f) << 1) #define __PPC_MB64(s) (__PPC_MB(s) | ((s) & 0x20)) #define __PPC_ME64(s) __PPC_MB64(s) @@ -438,6 +442,15 @@ #define PPC_STQCX(t, a, b) stringify_in_c(.long PPC_INST_STQCX | \ ___PPC_RT(t) | ___PPC_RA(a) | \ ___PPC_RB(b)) +#define PPC_MADDHD(t, a, b, c) stringify_in_c(.long PPC_INST_MADDHD | \ + ___PPC_RT(t) | ___PPC_RA(a) | \ + ___PPC_RB(b) | ___PPC_RC(c)) +#define PPC_MADDHDU(t, a, b, c) stringify_in_c(.long PPC_INST_MADDHDU | \ + ___PPC_RT(t) | ___PPC_RA(a) | \ + ___PPC_RB(b) | ___PPC_RC(c)) +#define PPC_MADDLD(t, a, b, c) stringify_in_c(.long PPC_INST_MADDLD | \ + ___PPC_RT(t) | ___PPC_RA(a) | \ + ___PPC_RB(b) | ___PPC_RC(c)) #define PPC_MSGSND(b) stringify_in_c(.long PPC_INST_MSGSND | \ ___PPC_RB(b)) #define PPC_MSGSYNC stringify_in_c(.long PPC_INST_MSGSYNC) |