arm64/mpam: correct num of partid/pmg

hulk inclusion
category: bugfix
bugzilla: 14212
CVE: NA

Perious we hard code num of partids and pmgs, now
we get it from MPAMF_IDS regs. The id is start from 0,
so NUM = MAX + 1. Fix it.

Hi1620's new spec use NUM_MAX as the MAX id of partid/pmg.
Signed-off-by: NXie XiuQi <xiexiuqi@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

arch/arm64/kernel/mpam.c

@@ -1215,8 +1215,8 @@ static void mpam_domains_init(struct resctrl_resource *r)
 		rr->default_ctrl = n->default_ctrl;
 
 		val = mpam_readl(d->base + MPAMF_IDR);
-		rr->num_partid = MPAMF_IDR_PARTID_MAX_GET(val);
-		rr->num_pmg = MPAMF_IDR_PMG_MAX_GET(val);
+		rr->num_partid = MPAMF_IDR_PARTID_MAX_GET(val) + 1;
+		rr->num_pmg = MPAMF_IDR_PMG_MAX_GET(val) + 1;
 
 		r->mon_capable = MPAMF_IDR_HAS_MSMON(val);
 		r->mon_enabled = MPAMF_IDR_HAS_MSMON(val);