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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-06-04 14:54:14 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-06-25 00:07:10 +1000 |
| commit | 4bd9e05ac7b8b1f7d0c28702cb684417501a5e39 (patch) | |
| tree | 0c0722fa29cbde6ea0c6361e1ed54ac5e56ac47a /arch/powerpc/kernel/head_booke.h | |
| parent | 275dcf24e253f4f5b200bc8cca5eac32a23b08c8 (diff) | |
| download | lwn-4bd9e05ac7b8b1f7d0c28702cb684417501a5e39.tar.gz lwn-4bd9e05ac7b8b1f7d0c28702cb684417501a5e39.zip | |
powerpc/32: Reduce code duplication of system call entry
booke and non booke do pretty similar things in SYSCALL_ENTRY macro
just before calling jumping to transfer_to_syscall().
Do them in transfer_to_syscall() instead.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/552e27fa09394a6bc70585fcdfa237f99a5d1267.1622818435.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/head_booke.h')
| -rw-r--r-- | arch/powerpc/kernel/head_booke.h | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h index 4a2fad9f225e..10f31146b472 100644 --- a/arch/powerpc/kernel/head_booke.h +++ b/arch/powerpc/kernel/head_booke.h @@ -140,26 +140,8 @@ ALT_FTR_SECTION_END_IFSET(CPU_FTR_EMB_HV) rlwinm r12,r12,0,4,2 /* Clear SO bit in CR */ ALLOC_STACK_FRAME(r1, THREAD_SIZE - INT_FRAME_SIZE) stw r12, _CCR(r1) - mflr r12 - stw r12,_LINK(r1) mfspr r12,SPRN_SRR0 - stw r11, GPR1(r1) - stw r11, 0(r1) - mr r11, r1 stw r12,_NIP(r1) - rlwinm r9,r9,0,14,12 /* clear MSR_WE (necessary?) */ - lis r12, STACK_FRAME_REGS_MARKER@ha /* exception frame marker */ - stw r2,GPR2(r11) - addi r12, r12, STACK_FRAME_REGS_MARKER@l - stw r9,_MSR(r11) - li r2, \trapno - stw r12, 8(r11) - stw r2,_TRAP(r11) - SAVE_GPR(0, r11) - SAVE_4GPRS(3, r11) - SAVE_2GPRS(7, r11) - - addi r2,r10,-THREAD b transfer_to_syscall /* jump to handler */ .endm |