@@ -2329,10 +2329,6 @@ int mpam_apply_config(struct mpam_component *comp, u16 partid,
lockdep_assert_cpus_held();
- if (!memcmp(&comp->cfg[partid], cfg, sizeof(*cfg)))
- return 0;
-
- comp->cfg[partid] = *cfg;
arg.comp = comp;
arg.partid = partid;
@@ -925,7 +925,7 @@ int resctrl_arch_update_one(struct rdt_resource *r, struct rdt_domain *d,
{
int err;
u32 partid;
- struct mpam_config cfg;
+ struct mpam_config *cfg;
struct mpam_props *cprops;
struct mpam_resctrl_res *res;
struct mpam_resctrl_dom *dom;
@@ -940,24 +940,30 @@ int resctrl_arch_update_one(struct rdt_resource *r, struct rdt_domain *d,
cprops = &res->class->props;
partid = resctrl_get_config_index(closid, t);
+ cfg = &dom->comp->cfg[partid];
if (!r->alloc_capable || partid >= resctrl_arch_get_num_closid(r))
return -EINVAL;
switch (r->rid) {
case RDT_RESOURCE_L2:
case RDT_RESOURCE_L3:
+ if (type == SCHEMA_DSPRI) {
+ cfg->dspri = cfg_val;
+ mpam_set_feature(mpam_feat_dspri_part, cfg);
+ } else {
/* TODO: Scaling is not yet supported */
- cfg.cpbm = cfg_val;
- mpam_set_feature(mpam_feat_cpor_part, &cfg);
+ cfg->cpbm = cfg_val;
+ mpam_set_feature(mpam_feat_cpor_part, cfg);
+ }
break;
case RDT_RESOURCE_MBA:
if (mba_class_use_mbw_part(cprops)) {
- cfg.mbw_pbm = percent_to_mbw_pbm(cfg_val, cprops);
- mpam_set_feature(mpam_feat_mbw_part, &cfg);
+ cfg->mbw_pbm = percent_to_mbw_pbm(cfg_val, cprops);
+ mpam_set_feature(mpam_feat_mbw_part, cfg);
break;
} else if (mpam_has_feature(mpam_feat_mbw_max, cprops)) {
- cfg.mbw_max = percent_to_mbw_max(cfg_val, cprops);
- mpam_set_feature(mpam_feat_mbw_max, &cfg);
+ cfg->mbw_max = percent_to_mbw_max(cfg_val, cprops);
+ mpam_set_feature(mpam_feat_mbw_max, cfg);
break;
}
fallthrough;
@@ -971,15 +977,15 @@ int resctrl_arch_update_one(struct rdt_resource *r, struct rdt_domain *d,
*/
if (mpam_resctrl_hide_cdp(r->rid)) {
partid = resctrl_get_config_index(closid, CDP_CODE);
- err = mpam_apply_config(dom->comp, partid, &cfg);
+ err = mpam_apply_config(dom->comp, partid, cfg);
if (err)
return err;
partid = resctrl_get_config_index(closid, CDP_DATA);
- return mpam_apply_config(dom->comp, partid, &cfg);
+ return mpam_apply_config(dom->comp, partid, cfg);
} else {
- return mpam_apply_config(dom->comp, partid, &cfg);
+ return mpam_apply_config(dom->comp, partid, cfg);
}
}
This change provides a way to write downstream priority value (passed from schemata file) to arch specific resource control code. The priority value is stored in mpam_config structure, and eventually gets programmed into MPAMCFG_PRI register. Signed-off-by: Amit Singh Tomar <amitsinght@marvell.com> --- Changes since RFC: * Schemata write is based on Control type. --- drivers/platform/mpam/mpam_devices.c | 4 ---- drivers/platform/mpam/mpam_resctrl.c | 26 ++++++++++++++++---------- 2 files changed, 16 insertions(+), 14 deletions(-)