On Tue, Apr 04, 2023 at 10:33:39AM +0100, Jiaxun Yang wrote: > Hi all, > > This patchset adds support for the MIPS Virt board, which is based > on my QEMU patch [1]. > > It can work with all CPUs from MIPS Technologies, and also Loongson-2E, > Loongson-2F, Cavium Octeon, R4000. > > Thanks to generic platform, there is nothing much to do for the platform > support, mostly decoupling CPU features with platform features, except for > last two patches. > > Note that due to QEMU limitation, SMP support is currently broken for all > processors other than MIPS I6400/I6500. This is because QEMU is now treatiing > secundary CPUs as a VPE (MIPS Release 6 VP). I'm going to fix that after getting > virt board support merged in QEMU. > > Thanks. > > - Jiaxun > [1]: https://lore.kernel.org/qemu-devel/20230308000745.56394-1-philmd@xxxxxxxxxx/ > > Jiaxun Yang (12): > MIPS: Move declaration of bcache ops to cache.c > MIPS: smp-cps: Disable coherence setup for unsupported ISA > MIPS: mips-cm: Check availability of config registers > MIPS: Octeon: Opt-out 4k_cache feature > MIPS: cpu-features: Enable octeon_cache by cpu_type > MIPS: c-octeon: Provide alternative SMP cache flush function > MIPS: Octeon: Allow CVMSEG to be disabled > MIPS: Loongson: Move arch cflags to MIPS top level Makefile > MIPS: Loongson: Don't select platform features with CPU > MIPS: Octeon: Disable CVMSEG by default on other platforms > MIPS: Add board config for virt board > MIPS: generic: Enable all CPUs supported by virt board in Kconfig > > arch/mips/Kconfig | 6 ++-- > arch/mips/Makefile | 38 +++++++++++++++++++++ > arch/mips/cavium-octeon/Kconfig | 3 +- > arch/mips/configs/generic/board-virt.config | 38 +++++++++++++++++++++ > arch/mips/include/asm/cache.h | 2 ++ > arch/mips/include/asm/cpu-features.h | 21 ++++++++++-- > arch/mips/include/asm/processor.h | 7 +++- > arch/mips/kernel/asm-offsets.c | 3 ++ > arch/mips/kernel/cps-vec.S | 5 +++ > arch/mips/kernel/cpu-probe.c | 2 ++ > arch/mips/kernel/mips-cm.c | 9 +++-- > arch/mips/kernel/smp-cps.c | 5 +++ > arch/mips/loongson2ef/Kconfig | 3 ++ > arch/mips/loongson2ef/Platform | 35 ------------------- > arch/mips/loongson64/Platform | 16 --------- > arch/mips/mm/c-octeon.c | 5 +++ > arch/mips/mm/c-r4k.c | 14 -------- > arch/mips/mm/cache.c | 19 +++++++++++ > 18 files changed, 158 insertions(+), 73 deletions(-) > create mode 100644 arch/mips/configs/generic/board-virt.config > > -- > 2.39.2 (Apple Git-143) series applied to mips-next. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
