diff options
| author | James Morse <james.morse@arm.com> | 2025-03-11 18:37:04 +0000 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-03-12 12:23:45 +0100 |
| commit | d81826f87a80a86cc5963ff3c44f05700ded3fc9 (patch) | |
| tree | 94357a7ca4a3976153edd453509105fabb41ba73 /include/linux/resctrl.h | |
| parent | d012b66a16618509242a51f5f6c9b19868ba5159 (diff) | |
x86/resctrl: Add resctrl_arch_is_evt_configurable() to abstract BMEC
When BMEC is supported the resctrl event can be configured in a number of
ways. This depends on architecture support. rdt_get_mon_l3_config() modifies
the struct mon_evt and calls resctrl_file_fflags_init() to create the files
that allow the configuration.
Splitting this into separate architecture and filesystem parts would require
the struct mon_evt and resctrl_file_fflags_init() to be exposed.
Instead, add resctrl_arch_is_evt_configurable(), and use this from
resctrl_mon_resource_init() to initialise struct mon_evt and call
resctrl_file_fflags_init().
resctrl_arch_is_evt_configurable() calls rdt_cpu_has() so it doesn't obviously
benefit from being inlined. Putting it in core.c will allow rdt_cpu_has() to
eventually become static.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Fenghua Yu <fenghuay@nvidia.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Babu Moger <babu.moger@amd.com>
Tested-by: Carl Worth <carl@os.amperecomputing.com> # arm64
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Tested-by: Peter Newman <peternewman@google.com>
Tested-by: Amit Singh Tomar <amitsinght@marvell.com> # arm64
Tested-by: Shanker Donthineni <sdonthineni@nvidia.com> # arm64
Tested-by: Babu Moger <babu.moger@amd.com>
Link: https://lore.kernel.org/r/20250311183715.16445-20-james.morse@arm.com
Diffstat (limited to 'include/linux/resctrl.h')
| -rw-r--r-- | include/linux/resctrl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h index a392480dc4b6..cc76f308e6f3 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -309,6 +309,8 @@ u32 resctrl_arch_get_num_closid(struct rdt_resource *r); u32 resctrl_arch_system_num_rmid_idx(void); int resctrl_arch_update_domains(struct rdt_resource *r, u32 closid); +__init bool resctrl_arch_is_evt_configurable(enum resctrl_event_id evt); + /* * Update the ctrl_val and apply this config right now. * Must be called on one of the domain's CPUs. |