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powerpc/ebpf64: Use PPC_RAW_MFLR() 

Use PPC_RAW_MFLR() instead of open coding with PPC_INST_MFLR.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c1887623e91e8b4da36e669e4c74de86320a5092.1621506159.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2021-05-20 10:23:07 +00:00 committed by Michael Ellerman
parent 5a03e1e972
commit e08021f8db
2 changed files with 2 additions and 3 deletions
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3
arch/powerpc/include/asm/ppc-opcode.h
View File

@ -286,7 +286,6 @@
#define PPC_INST_TSR 0x7c0005dd
#define PPC_INST_LD 0xe8000000
#define PPC_INST_STD 0xf8000000
#define PPC_INST_MFLR 0x7c0802a6
#define PPC_INST_ADDIS 0x3c000000
#define PPC_INST_ADD 0x7c000214
#define PPC_INST_DIVD 0x7c0003d2
@ -480,7 +479,7 @@
#define PPC_RAW_BLR() (0x4e800020)
#define PPC_RAW_BLRL() (0x4e800021)
#define PPC_RAW_MTLR(r) (0x7c0803a6 | ___PPC_RT(r))
#define PPC_RAW_MFLR(t) (PPC_INST_MFLR | ___PPC_RT(t))
#define PPC_RAW_MFLR(t) (0x7c0802a6 | ___PPC_RT(t))
#define PPC_RAW_BCTR() (0x4e800420)
#define PPC_RAW_BCTRL() (0x4e800421)
#define PPC_RAW_MTCTR(r) (0x7c0903a6 | ___PPC_RT(r))

2
arch/powerpc/net/bpf_jit_comp64.c
View File

@ -94,7 +94,7 @@ void bpf_jit_build_prologue(u32 *image, struct codegen_context *ctx)
* save/restore LR unless we call other functions
*/
if (ctx->seen & SEEN_FUNC) {
EMIT(PPC_INST_MFLR | __PPC_RT(R0));
EMIT(PPC_RAW_MFLR(_R0));
PPC_BPF_STL(0, 1, PPC_LR_STKOFF);
}