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authorVineet Gupta <vgupta@synopsys.com>2015-10-02 19:24:20 +0530
committerVineet Gupta <vgupta@synopsys.com>2015-10-17 17:48:26 +0530
commitd0890ea5b68f63d7b8641455dc5534886fee2fa1 (patch)
tree104314abfdcb73e3a914138b12dfa92a8b772a7c /arch/arc
parent964cf28f9d10f4e5229e4365258c292bc5c856b2 (diff)
ARC: boot log: decode more mmu config items
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/include/asm/arcregs.h2
-rw-r--r--arch/arc/mm/tlb.c14
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;
}