Hi Sebastian, On Tue, Oct 22, 2013 at 8:12 AM, Sebastian Macke <sebast...@macke.de> wrote: > > This series is the first part to make the OpenRISC target more > reliable and faster. > It corrects several severe problems which prevented the OpenRISC emulation > for being useful in the past. > > The patchset was tested with > - the tests/tcg/openrisc tests > - booting Linux 3.11 > - run configure + make + gcc of a simple terminal graphic demo called > cmatrix > - run benchmark tool nbench in qemu-user mode and in the softmmu mode > > The speed improvement is less than 10% because the overhead is still to high > as the openrisc target does not support translation block chaining. > This will be included in one of the future patches. > > Only the patch which removes the npc and ppc variables removes a little > feature > from the OpenRISC target but which does not break the specification and will > lead to > a significant speed improvement.
For v2 0/9 - 9/9 Acked-by: Jia Liu <pro...@gmail.com> I'll add some comment into the code to explain why we separate flags from sr and send a pull request if nobody raise a rejection. > > > Sebastian Macke (9): > target-openrisc: Speed up move instruction > target-openrisc: Remove unnecessary code generated by jump > instructions > target-openrisc: Remove executable flag for every page > target-openrisc: Correct wrong epcr register in interrupt handler > openrisc-timer: Reduce overhead, Separate clock update functions > target-openrisc: Correct memory bounds checking for the tlb buffers > target-openrisc: Separate branch flag from Supervision register > target-openrisc: Complete remove of npc and ppc variables > target-openrisc: Correct carry flag check of l.addc and l.addic test > cases > > hw/openrisc/cputimer.c | 29 ++++-- > target-openrisc/cpu.c | 1 + > target-openrisc/cpu.h | 16 ++- > target-openrisc/gdbstub.c | 20 +--- > target-openrisc/interrupt.c | 27 ++--- > target-openrisc/interrupt_helper.c | 3 +- > target-openrisc/machine.c | 3 +- > target-openrisc/mmu.c | 4 +- > target-openrisc/sys_helper.c | 74 ++++++-------- > target-openrisc/translate.c | 201 > ++++++++++++++++--------------------- > tests/tcg/openrisc/test_addc.c | 8 +- > tests/tcg/openrisc/test_addic.c | 10 +- > 12 files changed, 175 insertions(+), 221 deletions(-) > > -- > 1.8.4.1 > Regards, Jia
