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