Messages in this thread | | | From | James Morse <> | Subject | [PATCH v1 00/31] x86/resctrl: Move the resctrl filesystem code to /fs/resctrl | Date | Thu, 21 Mar 2024 16:50:35 +0000 |
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Hello!
This is the final series that allows other architectures to implement resctrl. The last patch just moves the code, and its a bit of a monster. I don't expect that to get merged as part of this series - we should wait for it to make less impact on other series. It's included here to show what gets moved, and that structures/function-prototypes have the right visibility.
Otherwise this series renames functions and moves code around. With the exception of invalid configurations for the configurable-events, there should be no changes in behaviour caused by this series.
The driving pattern is to make things like struct rdtgroup private to resctrl. Features like pseudo-lock aren't going to work on arm64, the ability to disable it at compile time is added.
After this, I can start posting the MPAM driver to make use of resctrl on arm64. (What's MPAM? See the cover letter of the first series. [1])
This series is based on Linus' commit 23956900041d and can be retrieved from: https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/move_to_fs/v1
Sorry for the mid-merge window base, I'm away for a few weeks - this should rebase trivially onto rc1.
As ever - bugs welcome, Thanks,
James
[1] https://lore.kernel.org/lkml/20201030161120.227225-1-james.morse@arm.com/
James Morse (31): x86/resctrl: Fix allocation of cleanest CLOSID on platforms with no monitors x86/resctrl: Add a helper to avoid reaching into the arch code resource list x86/resctrl: Move ctrlval string parsing policy away from the arch code x86/resctrl: Add helper for setting CPU default properties x86/resctrl: Remove rdtgroup from update_cpu_closid_rmid() x86/resctrl: Export resctrl fs's init function x86/resctrl: Wrap resctrl_arch_find_domain() around rdt_find_domain() x86/resctrl: Move resctrl types to a separate header x86/resctrl: Add a resctrl helper to reset all the resources x86/resctrl: Move monitor init work to a resctrl init call x86/resctrl: Move monitor exit work to a restrl exit call x86/resctrl: Move max_{name,data}_width into resctrl code x86/resctrl: Stop using the for_each_*_rdt_resource() walkers x86/resctrl: Export the is_mbm_*_enabled() helpers to asm/resctrl.h x86/resctrl: Add resctrl_arch_is_evt_configurable() to abstract BMEC x86/resctrl: Change mon_event_config_{read,write}() to be arch helpers x86/resctrl: Move mbm_cfg_mask to struct rdt_resource x86/resctrl: Allow resctrl_arch_mon_event_config_write() to return an error x86/resctrl: Add resctrl_arch_ prefix to pseudo lock functions x86/resctrl: Allow an architecture to disable pseudo lock x86/resctrl: Make prefetch_disable_bits belong to the arch code x86/resctrl: Make resctrl_arch_pseudo_lock_fn() take a plr x86/resctrl: Move thread_throttle_mode_init() to be managed by resctrl x86/resctrl: Move get_config_index() to a header x86/resctrl: Claim get_domain_from_cpu() for resctrl x86/resctrl: Describe resctrl's bitmap size assumptions x86/resctrl: Rename resctrl_sched_in() to begin resctrl_arch_ x86/resctrl: Drop __init/__exit on assorted symbols fs/resctrl: Add boiler plate for external resctrl code x86/resctrl: Move the filesystem bits to headers visible to fs/resctrl x86/resctrl: Move the resctrl filesystem code to /fs/resctrl
MAINTAINERS | 2 + arch/Kconfig | 8 + arch/x86/Kconfig | 5 +- arch/x86/include/asm/resctrl.h | 45 +- arch/x86/kernel/cpu/resctrl/Makefile | 5 +- arch/x86/kernel/cpu/resctrl/core.c | 119 +- arch/x86/kernel/cpu/resctrl/ctrlmondata.c | 506 +-- arch/x86/kernel/cpu/resctrl/internal.h | 433 +-- arch/x86/kernel/cpu/resctrl/monitor.c | 813 +---- arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 1126 +----- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 3929 +------------------- arch/x86/kernel/process_32.c | 2 +- arch/x86/kernel/process_64.c | 2 +- fs/Kconfig | 1 + fs/Makefile | 1 + fs/resctrl/Kconfig | 23 + fs/resctrl/Makefile | 3 + fs/resctrl/ctrlmondata.c | 527 +++ fs/resctrl/internal.h | 340 ++ fs/resctrl/monitor.c | 843 +++++ fs/resctrl/psuedo_lock.c | 1122 ++++++ fs/resctrl/rdtgroup.c | 4013 +++++++++++++++++++++ include/linux/resctrl.h | 153 +- include/linux/resctrl_types.h | 98 + 24 files changed, 7244 insertions(+), 6875 deletions(-) create mode 100644 fs/resctrl/Kconfig create mode 100644 fs/resctrl/Makefile create mode 100644 fs/resctrl/ctrlmondata.c create mode 100644 fs/resctrl/internal.h create mode 100644 fs/resctrl/monitor.c create mode 100644 fs/resctrl/psuedo_lock.c create mode 100644 fs/resctrl/rdtgroup.c create mode 100644 include/linux/resctrl_types.h
-- 2.39.2
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