diff options
| author | Babu Moger <babu.moger@amd.com> | 2025-09-05 16:34:06 -0500 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-09-15 12:07:01 +0200 |
| commit | 5ad68c8f965fed78c61f2ac7aea933f06bb50032 (patch) | |
| tree | a09b7e6385d6c371ea8e527977174681c0039d5c /arch/x86/kernel | |
| parent | bebf57bf054b561a62f3440142b2eddab2b0bbff (diff) | |
x86,fs/resctrl: Consolidate monitoring related data from rdt_resource
The cache allocation and memory bandwidth allocation feature properties are
consolidated into struct resctrl_cache and struct resctrl_membw respectively.
In preparation for more monitoring properties that will clobber the existing
resource struct more, re-organize the monitoring specific properties to also
be in a separate structure.
Also convert "bandwidth sources" terminology to "memory transactions" to have
consistency within resctrl for related monitoring features.
[ bp: Massage commit message. ]
Suggested-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/cover.1757108044.git.babu.moger@amd.com
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/cpu/resctrl/core.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/resctrl/monitor.c | 10 |
2 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c index b07b12a05886..267e9206a999 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -107,7 +107,7 @@ u32 resctrl_arch_system_num_rmid_idx(void) struct rdt_resource *r = &rdt_resources_all[RDT_RESOURCE_L3].r_resctrl; /* RMID are independent numbers for x86. num_rmid_idx == num_rmid */ - return r->num_rmid; + return r->mon.num_rmid; } struct rdt_resource *resctrl_arch_get_resource(enum resctrl_res_level l) @@ -541,7 +541,7 @@ static void domain_add_cpu_mon(int cpu, struct rdt_resource *r) arch_mon_domain_online(r, d); - if (arch_domain_mbm_alloc(r->num_rmid, hw_dom)) { + if (arch_domain_mbm_alloc(r->mon.num_rmid, hw_dom)) { mon_domain_free(hw_dom); return; } diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c index f01db2034d08..2558b1bdef8b 100644 --- a/arch/x86/kernel/cpu/resctrl/monitor.c +++ b/arch/x86/kernel/cpu/resctrl/monitor.c @@ -130,7 +130,7 @@ static int logical_rmid_to_physical_rmid(int cpu, int lrmid) if (snc_nodes_per_l3_cache == 1) return lrmid; - return lrmid + (cpu_to_node(cpu) % snc_nodes_per_l3_cache) * r->num_rmid; + return lrmid + (cpu_to_node(cpu) % snc_nodes_per_l3_cache) * r->mon.num_rmid; } static int __rmid_read_phys(u32 prmid, enum resctrl_event_id eventid, u64 *val) @@ -205,7 +205,7 @@ void resctrl_arch_reset_rmid_all(struct rdt_resource *r, struct rdt_mon_domain * continue; idx = MBM_STATE_IDX(eventid); memset(hw_dom->arch_mbm_states[idx], 0, - sizeof(*hw_dom->arch_mbm_states[0]) * r->num_rmid); + sizeof(*hw_dom->arch_mbm_states[0]) * r->mon.num_rmid); } } @@ -344,7 +344,7 @@ int __init rdt_get_mon_l3_config(struct rdt_resource *r) resctrl_rmid_realloc_limit = boot_cpu_data.x86_cache_size * 1024; hw_res->mon_scale = boot_cpu_data.x86_cache_occ_scale / snc_nodes_per_l3_cache; - r->num_rmid = (boot_cpu_data.x86_cache_max_rmid + 1) / snc_nodes_per_l3_cache; + r->mon.num_rmid = (boot_cpu_data.x86_cache_max_rmid + 1) / snc_nodes_per_l3_cache; hw_res->mbm_width = MBM_CNTR_WIDTH_BASE; if (mbm_offset > 0 && mbm_offset <= MBM_CNTR_WIDTH_OFFSET_MAX) @@ -359,7 +359,7 @@ int __init rdt_get_mon_l3_config(struct rdt_resource *r) * * For a 35MB LLC and 56 RMIDs, this is ~1.8% of the LLC. */ - threshold = resctrl_rmid_realloc_limit / r->num_rmid; + threshold = resctrl_rmid_realloc_limit / r->mon.num_rmid; /* * Because num_rmid may not be a power of two, round the value @@ -373,7 +373,7 @@ int __init rdt_get_mon_l3_config(struct rdt_resource *r) /* Detect list of bandwidth sources that can be tracked */ cpuid_count(0x80000020, 3, &eax, &ebx, &ecx, &edx); - r->mbm_cfg_mask = ecx & MAX_EVT_CONFIG_BITS; + r->mon.mbm_cfg_mask = ecx & MAX_EVT_CONFIG_BITS; } r->mon_capable = true; |