diff options
| author | Tony Luck <tony.luck@intel.com> | 2025-12-17 09:20:54 -0800 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2026-01-05 11:08:58 +0100 |
| commit | 6b10cf7b6ea857cdf9570e21c077a05803f60575 (patch) | |
| tree | 95ad3095328cfe7eb891d645bac90038c2eeb1d8 /include | |
| parent | ad5c2ff75e0c53d2588dfc10eb87458e759b6bbe (diff) | |
x86,fs/resctrl: Use struct rdt_domain_hdr when reading counters
Convert the whole call sequence from mon_event_read() to resctrl_arch_rmid_read() to
pass resource independent struct rdt_domain_hdr instead of an L3 specific domain
structure to prepare for monitoring events in other resources.
This additional layer of indirection obscures which aspects of event counting depend
on a valid domain. Event initialization, support for assignable counters, and normal
event counting implicitly depend on a valid domain while summing of domains does not.
Split summing domains from the core event counting handling to make their respective
dependencies obvious.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/20251217172121.12030-1-tony.luck@intel.com
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/resctrl.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h index 5db37c7e89c5..9b9877fb3238 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -517,7 +517,7 @@ void resctrl_offline_cpu(unsigned int cpu); * resctrl_arch_rmid_read() - Read the eventid counter corresponding to rmid * for this resource and domain. * @r: resource that the counter should be read from. - * @d: domain that the counter should be read from. + * @hdr: Header of domain that the counter should be read from. * @closid: closid that matches the rmid. Depending on the architecture, the * counter may match traffic of both @closid and @rmid, or @rmid * only. @@ -538,7 +538,7 @@ void resctrl_offline_cpu(unsigned int cpu); * Return: * 0 on success, or -EIO, -EINVAL etc on error. */ -int resctrl_arch_rmid_read(struct rdt_resource *r, struct rdt_mon_domain *d, +int resctrl_arch_rmid_read(struct rdt_resource *r, struct rdt_domain_hdr *hdr, u32 closid, u32 rmid, enum resctrl_event_id eventid, u64 *val, void *arch_mon_ctx); |