Re: [PATCH v6 0/3] Add PMEM support for RISC-V

[Conor Dooley <conor@kernel.org>]

On Sat, Nov 19, 2022 at 06:11:08PM +0530, Anup Patel wrote:
> On Mon, Nov 14, 2022 at 10:11 PM Conor Dooley <conor@kernel.org> wrote:
> >
> > Hey Anup,
> >
> > Looks like patches 2 and 3 are failing for the nommu defconfigs:
> > https://patchwork.kernel.org/project/linux-riscv/list/?series=694995
> > Unfortunately, if the build fails NIPA doesn't appear to save a log.
> >
> > In case it's relevant, should be gcc-11 & bintutils 2.37.
> 
> I tried nommu defconfigs with gcc-12.1.0 and binutils-2.39 and I did
> not see any failure.

In the interim, I got my new machine set up properly and have gcc-11
locally now (11.1.0) with binutils 2.37. I just gave the series a try
and I cannot see the failure either but I am not using tuxmake.

Apologies for the noise Anup!
FWIW:
Acked-by: Conor Dooley <conor.dooley@microchip.com>

> 
> Regards,
> Anup
> 
> >
> > Thanks,
> > Conor.
> >
> > On Mon, Nov 14, 2022 at 02:35:33PM +0530, Anup Patel wrote:
> > > The Linux NVDIMM PEM drivers require arch support to map and access the
> > > persistent memory device. This series adds RISC-V PMEM support using
> > > recently added Svpbmt and Zicbom support.
> > >
> > > First two patches are fixes and remaining two patches add the required
> > > PMEM support for Linux RISC-V.
> > >
> > > These patches can also be found in riscv_pmem_v6 branch at:
> > > https://github.com/avpatel/linux.git
> > >
> > > Changes since v5:
> > >  - Rebased on Linux-6.1-rc5
> > >  - Directly add pmem.o in obj-y of PATCH3
> > >  - Dropped PATCH1 since this is already merged.
> > >
> > > Changes since v4:
> > >  - Simplify PATCH2 by implementing RISC-V specific arch_memremap_wb()
> > >
> > > Changes since v3:
> > >  - Pickup correct version of Drew's patch as PATCH1
> > >
> > > Changes since v2:
> > >  - Rebased on Linux-6.1-rc1
> > >  - Replaced PATCH1 with the patch proposed by Drew
> > >
> > > Changes since v1:
> > >  - Fix error reported by test bot
> > >    https://lore.kernel.org/all/202208272028.IwrNZ0Ur-lkp@intel.com/
> > >
> > > Anup Patel (3):
> > >   RISC-V: Fix MEMREMAP_WB for systems with Svpbmt
> > >   RISC-V: Implement arch specific PMEM APIs
> > >   RISC-V: Enable PMEM drivers
> > >
> > >  arch/riscv/Kconfig           |  1 +
> > >  arch/riscv/configs/defconfig |  1 +
> > >  arch/riscv/include/asm/io.h  |  5 +++++
> > >  arch/riscv/mm/Makefile       |  1 +
> > >  arch/riscv/mm/pmem.c         | 21 +++++++++++++++++++++
> > >  5 files changed, 29 insertions(+)
> > >  create mode 100644 arch/riscv/mm/pmem.c
> > >
> > > --
> > > 2.34.1
> > >

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