[PATCH 00/12] DT: CPU h/w id parsing clean-ups and cacheinfo id support
flat view
From: Rob Herring <robh@kernel.org>
Date: 2021-10-06 16:43:41
Also in:
linux-arm-kernel, linux-devicetree, linux-riscv, linux-sh, lkml
Subsystem:
arm port, arm64 port (aarch64 architecture), broadcom bcm281xx/bcm11xxx/bcm216xx arm architecture, c-sky architecture, driver core, kobjects, debugfs and sysfs, linux for powerpc (32-bit and 64-bit), open firmware and flattened device tree, openrisc architecture, risc-v architecture, superh, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Russell King, Catalin Marinas, Will Deacon, Florian Fainelli, Ray Jui, Scott Branden, Guo Ren, Greg Kroah-Hartman, "Rafael J. Wysocki", Danilo Krummrich, Johan Hovold, Madhavan Srinivasan, Rob Herring, Saravana Kannan, Jonas Bonn, Stefan Kristiansson, Stafford Horne, Paul Walmsley, Palmer Dabbelt, Albert Ou, Yoshinori Sato, Rich Felker, John Paul Adrian Glaubitz, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
Status: Pending, 10 of 12 landed.
The first 10 patches add a new function, of_get_cpu_hwid(), which parses CPU DT node 'reg' property, and then use it to replace all the open coded versions of parsing CPU node 'reg' properties. The last 2 patches add support for populating the cacheinfo 'id' on DT platforms. The minimum associated CPU hwid is used for the id. The id is optional, but necessary for resctrl which is being adapted for Arm MPAM. Tested on arm64. Compile tested on arm, x86 and powerpc. Rob Rob Herring (12): of: Add of_get_cpu_hwid() to read hardware ID from CPU nodes ARM: Use of_get_cpu_hwid() ARM: broadcom: Use of_get_cpu_hwid() arm64: Use of_get_cpu_hwid() csky: Use of_get_cpu_hwid() openrisc: Use of_get_cpu_hwid() powerpc: Use of_get_cpu_hwid() riscv: Use of_get_cpu_hwid() sh: Use of_get_cpu_hwid() x86: dt: Use of_get_cpu_hwid() cacheinfo: Allow for >32-bit cache 'id' cacheinfo: Set cache 'id' based on DT data arch/arm/kernel/devtree.c | 22 ++------------------- arch/arm/mach-bcm/bcm63xx_pmb.c | 6 +++--- arch/arm64/kernel/smp.c | 31 ++---------------------------- arch/csky/kernel/smp.c | 6 ++---- arch/openrisc/kernel/smp.c | 6 +----- arch/powerpc/kernel/smp.c | 7 +------ arch/riscv/kernel/cpu.c | 3 ++- arch/sh/boards/of-generic.c | 5 ++--- arch/x86/kernel/devicetree.c | 5 ++--- drivers/base/cacheinfo.c | 34 ++++++++++++++++++++++++++++++++- drivers/of/base.c | 22 +++++++++++++++++++++ include/linux/cacheinfo.h | 2 +- include/linux/of.h | 1 + 13 files changed, 74 insertions(+), 76 deletions(-) -- 2.30.2