Le 27/08/2019 à 15:55, Nicholas Piggin a écrit :
Accounted for some feedback.
Nicholas Piggin (4):
powerpc: convert to copy_thread_tls
powerpc/64: remove support for kernel-mode syscalls
powerpc/64: system call remove non-volatile GPR save optimisation
powerpc/64: system call implement the bulk of the logic in C
Would it be possible to split in the following parts:
1/ Implement in C whatever can be implemented without removing
non-volatile GPR save optimisation
2/ Remove non-volatile GPR save optimisation
3/ Implement in C everything else
Christophe
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/asm-prototypes.h | 11 -
.../powerpc/include/asm/book3s/64/kup-radix.h | 12 +-
arch/powerpc/include/asm/cputime.h | 22 +
arch/powerpc/include/asm/ptrace.h | 3 +
arch/powerpc/include/asm/signal.h | 2 +
arch/powerpc/include/asm/switch_to.h | 5 +
arch/powerpc/include/asm/time.h | 3 +
arch/powerpc/kernel/Makefile | 3 +-
arch/powerpc/kernel/entry_64.S | 421 +++---------------
arch/powerpc/kernel/exceptions-64s.S | 2 -
arch/powerpc/kernel/process.c | 9 +-
arch/powerpc/kernel/signal.h | 2 -
arch/powerpc/kernel/syscall_64.c | 177 ++++++++
arch/powerpc/kernel/syscalls/syscall.tbl | 22 +-
15 files changed, 307 insertions(+), 388 deletions(-)
create mode 100644 arch/powerpc/kernel/syscall_64.c
