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powerpc/opcodes: Add shorter macros for registers for use with PPC_RAW_xx()

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Today we have __REG_Rx macros . They are mainly meant for
internal use by macros __PPC_RA() and friends macros which
allows uses like __PPC_RA(R12).

When used with PPC_RAW_xx() macros, it gives a result which is
not very readable.

Add shorter macros _Rx in order to improve readability when
used with PPC_RAW_xx() macros.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ec34d92b7c2f810622261acfeeed4b0a0f4d01bd.1621506159.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2021-05-20 10:23:01 +00:00 committed by Michael Ellerman
parent 148a047602
commit 07cd18320e
1 changed files with 34 additions and 0 deletions
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34
arch/powerpc/include/asm/ppc-opcode.h
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@ -76,6 +76,40 @@
#define __REGA0_R30 30
#define __REGA0_R31 31
/* For use with PPC_RAW_() macros */
#define _R0 0
#define _R1 1
#define _R2 2
#define _R3 3
#define _R4 4
#define _R5 5
#define _R6 6
#define _R7 7
#define _R8 8
#define _R9 9
#define _R10 10
#define _R11 11
#define _R12 12
#define _R13 13
#define _R14 14
#define _R15 15
#define _R16 16
#define _R17 17
#define _R18 18
#define _R19 19
#define _R20 20
#define _R21 21
#define _R22 22
#define _R23 23
#define _R24 24
#define _R25 25
#define _R26 26
#define _R27 27
#define _R28 28
#define _R29 29
#define _R30 30
#define _R31 31
#define IMM_L(i) ((uintptr_t)(i) & 0xffff)
#define IMM_DS(i) ((uintptr_t)(i) & 0xfffc)
#define IMM_DQ(i) ((uintptr_t)(i) & 0xfff0)