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powerpc/ftrace: Use PPC_RAW_xxx() macros instead of opencoding.

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PPC_RAW_xxx() macros are self explanatory and less error prone
than open coding.

Use them in ftrace.c

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9292094c9a69cef6d29ee83f435a557b59c45065.1652074503.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy
2022-05-09 07:36:14 +02:00
committed by Michael Ellerman
parent cf9df92a82
commit e89aa642be
2 changed files with 16 additions and 21 deletions
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5
arch/powerpc/include/asm/ppc-opcode.h
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@@ -363,6 +363,10 @@
#define PPC_HIGHER(v) (((v) >> 32) & 0xffff)
#define PPC_HIGHEST(v) (((v) >> 48) & 0xffff)
/* LI Field */
#define PPC_LI_MASK 0x03fffffc
#define PPC_LI(v) ((v) & PPC_LI_MASK)
/*
* Only use the larx hint bit on 64bit CPUs. e500v1/v2 based CPUs will treat a
* larx with EH set as an illegal instruction.
@@ -583,6 +587,7 @@
#define PPC_RAW_EIEIO() (0x7c0006ac)
#define PPC_RAW_BRANCH(addr) (PPC_INST_BRANCH | ((addr) & 0x03fffffc))
#define PPC_RAW_BL(offset) (0x48000001 | PPC_LI(offset))
/* Deal with instructions that older assemblers aren't aware of */
#define PPC_BCCTR_FLUSH stringify_in_c(.long PPC_INST_BCCTR_FLUSH)