The series seems quite calm now. I've received some approvals of the on the proposal, and heard no objections on the new core interfaces. Please let me know if there is anyone or group of people I should request and wait for a review. And if anyone reading this would like additional time as well before I post a potentially subsequent version, please let me know. I also wanted to inquire on upstream strategy if/when all desired reviews are received. The series is spanning a few subsystems, so I'm not sure who's tree is the best candidate. I could see an argument for driver-core, acpi, or mm as possible paths. Please let me know if there's a more appropriate option or any other gating concerns. == Changes from v3 == I've fixed the documentation issues that have been raised for v3 Moved the hmat files according to Rafael's recommendation Added received Reviewed-by's Otherwise this v4 is much the same as v3. == Background == Platforms may provide multiple types of cpu attached system memory. The memory ranges for each type may have different characteristics that applications may wish to know about when considering what node they want their memory allocated from. It had previously been difficult to describe these setups as memory rangers were generally lumped into the NUMA node of the CPUs. New platform attributes have been created and in use today that describe the more complex memory hierarchies that can be created. This series' objective is to provide the attributes from such systems that are useful for applications to know about, and readily usable with existing tools and libraries. Keith Busch (13): acpi: Create subtable parsing infrastructure acpi: Add HMAT to generic parsing tables acpi/hmat: Parse and report heterogeneous memory node: Link memory nodes to their compute nodes Documentation/ABI: Add new node sysfs attributes acpi/hmat: Register processor domain to its memory node: Add heterogenous memory access attributes Documentation/ABI: Add node performance attributes acpi/hmat: Register performance attributes node: Add memory caching attributes Documentation/ABI: Add node cache attributes acpi/hmat: Register memory side cache attributes doc/mm: New documentation for memory performance Documentation/ABI/stable/sysfs-devices-node | 87 +++++- Documentation/admin-guide/mm/numaperf.rst | 184 +++++++++++++ arch/arm64/kernel/acpi_numa.c | 2 +- arch/arm64/kernel/smp.c | 4 +- arch/ia64/kernel/acpi.c | 12 +- arch/x86/kernel/acpi/boot.c | 36 +-- drivers/acpi/Kconfig | 1 + drivers/acpi/Makefile | 1 + drivers/acpi/hmat/Kconfig | 9 + drivers/acpi/hmat/Makefile | 1 + drivers/acpi/hmat/hmat.c | 375 ++++++++++++++++++++++++++ drivers/acpi/numa.c | 16 +- drivers/acpi/scan.c | 4 +- drivers/acpi/tables.c | 76 +++++- drivers/base/Kconfig | 8 + drivers/base/node.c | 317 +++++++++++++++++++++- drivers/irqchip/irq-gic-v2m.c | 2 +- drivers/irqchip/irq-gic-v3-its-pci-msi.c | 2 +- drivers/irqchip/irq-gic-v3-its-platform-msi.c | 2 +- drivers/irqchip/irq-gic-v3-its.c | 6 +- drivers/irqchip/irq-gic-v3.c | 10 +- drivers/irqchip/irq-gic.c | 4 +- drivers/mailbox/pcc.c | 2 +- include/linux/acpi.h | 6 +- include/linux/node.h | 70 ++++- 25 files changed, 1172 insertions(+), 65 deletions(-) create mode 100644 Documentation/admin-guide/mm/numaperf.rst create mode 100644 drivers/acpi/hmat/Kconfig create mode 100644 drivers/acpi/hmat/Makefile create mode 100644 drivers/acpi/hmat/hmat.c -- 2.14.4
