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

[Conor Dooley]

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.

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
>