diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c index 405b99d31ef9..d10fddaef5f4 100644 --- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c +++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c @@ -286,14 +286,12 @@ done: static int rdtgroup_parse_resource(char *resname, char *tok, struct rdtgroup *rdtgrp) { - struct rdt_hw_resource *hw_res; struct resctrl_schema *s; struct rdt_resource *r; list_for_each_entry(s, &resctrl_schema_all, list) { r = s->res; - hw_res = resctrl_to_arch_res(s->res); - if (!strcmp(resname, r->name) && rdtgrp->closid < hw_res->num_closid) + if (!strcmp(resname, r->name) && rdtgrp->closid < s->num_closid) return parse_line(tok, r, rdtgrp); } rdt_last_cmd_printf("Unknown or unsupported resource name '%s'\n", resname); @@ -404,7 +402,6 @@ static void show_doms(struct seq_file *s, struct rdt_resource *r, int closid) int rdtgroup_schemata_show(struct kernfs_open_file *of, struct seq_file *s, void *v) { - struct rdt_hw_resource *hw_res; struct resctrl_schema *schema; struct rdtgroup *rdtgrp; struct rdt_resource *r; @@ -432,8 +429,8 @@ int rdtgroup_schemata_show(struct kernfs_open_file *of, } else { closid = rdtgrp->closid; list_for_each_entry(schema, &resctrl_schema_all, list) { - hw_res = resctrl_to_arch_res(schema->res); - if (closid < hw_res->num_closid) + r = schema->res; + if (closid < schema->num_closid) show_doms(s, r, closid); } } diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c index 7502b7de3916..2f29b7d7d602 100644 --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c @@ -103,15 +103,12 @@ int closids_supported(void) static void closid_init(void) { - struct rdt_hw_resource *hw_res; struct resctrl_schema *s; int rdt_min_closid = 32; /* Compute rdt_min_closid across all resources */ - list_for_each_entry(s, &resctrl_schema_all, list) { - hw_res = resctrl_to_arch_res(s->res); - rdt_min_closid = min(rdt_min_closid, hw_res->num_closid); - } + list_for_each_entry(s, &resctrl_schema_all, list) + rdt_min_closid = min(rdt_min_closid, s->num_closid); closid_free_map = BIT_MASK(rdt_min_closid) - 1; @@ -849,11 +846,8 @@ static int rdt_num_closids_show(struct kernfs_open_file *of, struct seq_file *seq, void *v) { struct resctrl_schema *s = of->kn->parent->priv; - struct rdt_resource *r = s->res; - struct rdt_hw_resource *hw_res; - hw_res = resctrl_to_arch_res(r); - seq_printf(seq, "%d\n", hw_res->num_closid); + seq_printf(seq, "%u\n", s->num_closid); return 0; } @@ -2140,6 +2134,7 @@ static int schemata_list_create(void) s->res = r; s->conf_type = resctrl_to_arch_res(r)->conf_type; + s->num_closid = resctrl_to_arch_res(r)->num_closid; INIT_LIST_HEAD(&s->list); list_add(&s->list, &resctrl_schema_all); diff --git a/include/linux/resctrl.h b/include/linux/resctrl.h index 095ed48168d7..59d0fa78bb69 100644 --- a/include/linux/resctrl.h +++ b/include/linux/resctrl.h @@ -172,10 +172,14 @@ struct rdt_resource { * @conf_type: Whether this schema is specific to code/data. * @res: The resource structure exported by the architecture to describe * the hardware that is configured by this schema. + * @num_closid: The number of closid that can be used with this schema. When + * features like CDP are enabled, this will be lower than the + * hardware supports for the resource. */ struct resctrl_schema { struct list_head list; enum resctrl_conf_type conf_type; struct rdt_resource *res; + int num_closid; }; #endif /* _RESCTRL_H */