diff options
Diffstat (limited to 'arch/x86/kernel/cpu/resctrl/monitor.c')
| -rw-r--r-- | arch/x86/kernel/cpu/resctrl/monitor.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c index 77538abeb72a..7fe51488e136 100644 --- a/arch/x86/kernel/cpu/resctrl/monitor.c +++ b/arch/x86/kernel/cpu/resctrl/monitor.c @@ -204,6 +204,23 @@ void resctrl_arch_reset_rmid(struct rdt_resource *r, struct rdt_domain *d, } } +/* + * Assumes that hardware counters are also reset and thus that there is + * no need to record initial non-zero counts. + */ +void resctrl_arch_reset_rmid_all(struct rdt_resource *r, struct rdt_domain *d) +{ + struct rdt_hw_domain *hw_dom = resctrl_to_arch_dom(d); + + if (is_mbm_total_enabled()) + memset(hw_dom->arch_mbm_total, 0, + sizeof(*hw_dom->arch_mbm_total) * r->num_rmid); + + if (is_mbm_local_enabled()) + memset(hw_dom->arch_mbm_local, 0, + sizeof(*hw_dom->arch_mbm_local) * r->num_rmid); +} + static u64 mbm_overflow_count(u64 prev_msr, u64 cur_msr, unsigned int width) { u64 shift = 64 - width, chunks; @@ -763,7 +780,7 @@ static void l3_mon_evt_init(struct rdt_resource *r) list_add_tail(&mbm_local_event.list, &r->evt_list); } -int rdt_get_mon_l3_config(struct rdt_resource *r) +int __init rdt_get_mon_l3_config(struct rdt_resource *r) { unsigned int mbm_offset = boot_cpu_data.x86_cache_mbm_width_offset; struct rdt_hw_resource *hw_res = resctrl_to_arch_res(r); @@ -800,6 +817,17 @@ int rdt_get_mon_l3_config(struct rdt_resource *r) if (ret) return ret; + if (rdt_cpu_has(X86_FEATURE_BMEC)) { + if (rdt_cpu_has(X86_FEATURE_CQM_MBM_TOTAL)) { + mbm_total_event.configurable = true; + mbm_config_rftype_init("mbm_total_bytes_config"); + } + if (rdt_cpu_has(X86_FEATURE_CQM_MBM_LOCAL)) { + mbm_local_event.configurable = true; + mbm_config_rftype_init("mbm_local_bytes_config"); + } + } + l3_mon_evt_init(r); r->mon_capable = true; |