[PATCH v6 0/2] powerpc/32: Implement C syscall entry/exit (complement)

Christophe Leroy christophe.leroy at csgroup.eu
Wed Feb 10 06:29:26 AEDT 2021


This series implements C syscall entry/exit for PPC32. It reuses
the work already done for PPC64.

This series is based on today's next-test (f538b53fd47a) where main patchs from v5 are merged in.

The first patch is important for performance.

v6:
- Forced scv param to 0 on syscall_exit_prepare(), and added is_not_scv bool.
- Reworked the last patch to avoid code duplication.

Christophe Leroy (2):
  powerpc/syscall: Do not check unsupported scv vector on PPC32
  powerpc/32: Handle bookE debugging in C in syscall entry/exit

 arch/powerpc/include/asm/interrupt.h | 12 +++++++
 arch/powerpc/include/asm/ptrace.h    |  5 +++
 arch/powerpc/include/asm/reg_booke.h |  3 ++
 arch/powerpc/kernel/entry_32.S       |  7 ----
 arch/powerpc/kernel/head_32.h        | 15 ---------
 arch/powerpc/kernel/head_booke.h     | 19 -----------
 arch/powerpc/kernel/interrupt.c      | 50 ++++++++++++++++++----------
 7 files changed, 52 insertions(+), 59 deletions(-)

-- 
2.25.0



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