ARC: boot log: decode more mmu config items

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

2 files changed, 9 insertions, 7 deletions

diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index dc9e65a8d722..7fac7d85ed6a 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -327,7 +327,7 @@ struct bcr_generic {
  */
 
 struct cpuinfo_arc_mmu {
-        unsigned int ver:4, pg_sz_k:8, s_pg_sz_m:8, pad:12;
+        unsigned int ver:4, pg_sz_k:8, s_pg_sz_m:8, pad:10, sasid:1, pae:1;
         unsigned int sets:12, ways:4, u_dtlb:8, u_itlb:8;
 };
 
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index a69f2078a96d..2a30c91f7977 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -723,10 +723,10 @@ void read_decode_mmu_bcr(void)
 
         struct bcr_mmu_3 {
 #ifdef CONFIG_CPU_BIG_ENDIAN
-        unsigned int ver:8, ways:4, sets:4, osm:1, reserv:3, pg_sz:4,
+        unsigned int ver:8, ways:4, sets:4, res:3, sasid:1, pg_sz:4,
                      u_itlb:4, u_dtlb:4;
 #else
-        unsigned int u_dtlb:4, u_itlb:4, pg_sz:4, reserv:3, osm:1, sets:4,
+        unsigned int u_dtlb:4, u_itlb:4, pg_sz:4, sasid:1, res:3, sets:4,
                      ways:4, ver:8;
 #endif
         } *mmu3;
@@ -747,7 +747,7 @@ void read_decode_mmu_bcr(void)
 
         if (mmu->ver <= 2) {
                 mmu2 = (struct bcr_mmu_1_2 *)&tmp;
-                mmu->pg_sz_k = TO_KB(PAGE_SIZE);
+                mmu->pg_sz_k = TO_KB(0x2000);
                 mmu->sets = 1 << mmu2->sets;
                 mmu->ways = 1 << mmu2->ways;
                 mmu->u_dtlb = mmu2->u_dtlb;
@@ -759,6 +759,7 @@ void read_decode_mmu_bcr(void)
                 mmu->ways = 1 << mmu3->ways;
                 mmu->u_dtlb = mmu3->u_dtlb;
                 mmu->u_itlb = mmu3->u_itlb;
+                mmu->sasid = mmu3->sasid;
         } else {
                 mmu4 = (struct bcr_mmu_4 *)&tmp;
                 mmu->pg_sz_k = 1 << (mmu4->sz0 - 1);
@@ -767,6 +768,8 @@ void read_decode_mmu_bcr(void)
                 mmu->ways = mmu4->n_ways * 2;
                 mmu->u_dtlb = mmu4->u_dtlb * 4;
                 mmu->u_itlb = mmu4->u_itlb * 4;
+                mmu->sasid = mmu4->sasid;
+                mmu->pae = mmu4->pae;
         }
 }
 
@@ -782,11 +785,10 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len)
                           IS_USED_CFG(CONFIG_TRANSPARENT_HUGEPAGE));
 
         n += scnprintf(buf + n, len - n,
-                      "MMU [v%x]\t: %dk PAGE, %sJTLB %d (%dx%d), uDTLB %d, uITLB %d %s\n",
+                      "MMU [v%x]\t: %dK PAGE, %sJTLB %d (%dx%d), uDTLB %d, uITLB %d\n",
                        p_mmu->ver, p_mmu->pg_sz_k, super_pg,
                        p_mmu->sets * p_mmu->ways, p_mmu->sets, p_mmu->ways,
-                       p_mmu->u_dtlb, p_mmu->u_itlb,
-                       IS_ENABLED(CONFIG_ARC_MMU_SASID) ? ",SASID" : "");
+                       p_mmu->u_dtlb, p_mmu->u_itlb);
 
         return buf;
 }