@Sunil V L Could you help have a review on this patch set? Thanks, Haibo On Wed, Apr 24, 2024 at 1:29 PM Haibo Xu <haibo1.xu@xxxxxxxxx> wrote: > > This patch series enable RISC-V ACPI NUMA support which was based on > the recently approved ACPI ECR[1]. > > Patch 1/6 is generated from the acpica PR[2] and should be merged through > the acpica project. Due to this dependency, other 5 patches can only be > merged after the corresponding ACPICA patch was pulled into linux. > > Patch 2/6 add RISC-V specific acpi_numa.c file to parse NUMA information > from SRAT and SLIT ACPI tables. > Patch 3/6 add the common SRAT RINTC affinity structure handler. > Patch 4/6 remove the '#if defined(CONFIG_ARCH)' condition to make some NUMA > related parse functions common for all current architectures that support > ACPI_NUMA. > Patch 5/6 change the ACPI_NUMA to a hidden option since it would be selected > by default on all supported platform. > Patch 6/6 replace pr_info with pr_debug in arch_acpi_numa_init() to avoid > potential boot noise on ACPI platforms that are not NUMA. > > Based-on: https://github.com/linux-riscv/linux-riscv/tree/for-next > > [1] https://drive.google.com/file/d/1YTdDx2IPm5IeZjAW932EYU-tUtgS08tX/view?usp=sharing > [2] https://github.com/acpica/acpica/pull/926 > > Testing: > Since the ACPI AIA/PLIC support patch set is still under upstream review, > hence it is tested using the poll based HVC SBI console and RAM disk. > 1) Build latest Qemu with the following patch backported > https://github.com/vlsunil/qemu/commit/42bd4eeefd5d4410a68f02d54fee406d8a1269b0 > > 2) Build latest EDK-II > https://github.com/tianocore/edk2/blob/master/OvmfPkg/RiscVVirt/README.md > > 3) Build Linux with the following configs enabled > CONFIG_RISCV_SBI_V01=y > CONFIG_SERIAL_EARLYCON_RISCV_SBI=y > CONFIG_NONPORTABLE=y > CONFIG_HVC_RISCV_SBI=y > CONFIG_NUMA=y > CONFIG_ACPI_NUMA=y > > 4) Build buildroot rootfs.cpio > > 5) Launch the Qemu machine > qemu-system-riscv64 -nographic \ > -machine virt,pflash0=pflash0,pflash1=pflash1 -smp 4 -m 8G \ > -blockdev node-name=pflash0,driver=file,read-only=on,filename=RISCV_VIRT_CODE.fd \ > -blockdev node-name=pflash1,driver=file,filename=RISCV_VIRT_VARS.fd \ > -object memory-backend-ram,size=4G,id=m0 \ > -object memory-backend-ram,size=4G,id=m1 \ > -numa node,memdev=m0,cpus=0-1,nodeid=0 \ > -numa node,memdev=m1,cpus=2-3,nodeid=1 \ > -numa dist,src=0,dst=1,val=30 \ > -kernel linux/arch/riscv/boot/Image \ > -initrd buildroot/output/images/rootfs.cpio \ > -append "root=/dev/ram ro console=hvc0 earlycon=sbi" > > [ 0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x80000000-0x17fffffff] > [ 0.000000] ACPI: SRAT: Node 1 PXM 1 [mem 0x180000000-0x27fffffff] > [ 0.000000] NUMA: NODE_DATA [mem 0x17fe3bc40-0x17fe3cfff] > [ 0.000000] NUMA: NODE_DATA [mem 0x27fff4c40-0x27fff5fff] > ... > [ 0.000000] ACPI: NUMA: SRAT: PXM 0 -> HARTID 0x0 -> Node 0 > [ 0.000000] ACPI: NUMA: SRAT: PXM 0 -> HARTID 0x1 -> Node 0 > [ 0.000000] ACPI: NUMA: SRAT: PXM 1 -> HARTID 0x2 -> Node 1 > [ 0.000000] ACPI: NUMA: SRAT: PXM 1 -> HARTID 0x3 -> Node 1 > > --- > Changes since v2 > - Rebase to Linux 6.9-rc1 > - changed ACPI_NUMA to a hidden option in patch 5/6 per Arnd's suggestion > - Removed original 6/6 which was not needed with changes in patch 5/6 > - Added a new patch 6/6 to replace pr_info to pr_debug in arch_acpi_numa_init > > Haibo Xu (6): > ACPICA: SRAT: Add RISC-V RINTC affinity structure > ACPI: RISCV: Add NUMA support based on SRAT and SLIT > ACPI: NUMA: Add handler for SRAT RINTC affinity structure > ACPI: NUMA: Make some NUMA related parse functions common > ACPI: NUMA: change the ACPI_NUMA to a hidden option > ACPI: NUMA: replace pr_info with pr_debug in arch_acpi_numa_init > > arch/arm64/Kconfig | 1 - > arch/loongarch/Kconfig | 1 - > arch/riscv/include/asm/acpi.h | 15 +++- > arch/riscv/kernel/Makefile | 1 + > arch/riscv/kernel/acpi.c | 5 -- > arch/riscv/kernel/acpi_numa.c | 131 ++++++++++++++++++++++++++++++++++ > arch/riscv/kernel/setup.c | 4 +- > arch/riscv/kernel/smpboot.c | 2 - > drivers/acpi/numa/Kconfig | 5 +- > drivers/acpi/numa/srat.c | 40 ++++++++--- > drivers/base/arch_numa.c | 2 +- > include/acpi/actbl3.h | 18 ++++- > include/linux/acpi.h | 6 ++ > 13 files changed, 204 insertions(+), 27 deletions(-) > create mode 100644 arch/riscv/kernel/acpi_numa.c > > -- > 2.34.1 >
