Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
---
arch/arc/mm/tlb.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index 337eebf0d6cf..211d59347047 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -706,7 +706,8 @@ char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len)
if (p_mmu->s_pg_sz_m)
scnprintf(super_pg, 64, "%dM Super Page%s, ",
- p_mmu->s_pg_sz_m, " (not used)");
+ p_mmu->s_pg_sz_m,
+ IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) ? "" : " (not used)");
n += scnprintf(buf + n, len - n,
"MMU [v%x]\t: %dk PAGE, %sJTLB %d (%dx%d), uDTLB %d, uITLB %d %s\n",
@@ -741,6 +742,11 @@ void arc_mmu_init(void)
if (mmu->pg_sz_k != TO_KB(PAGE_SIZE))
panic("MMU pg size != PAGE_SIZE (%luk)\n", TO_KB(PAGE_SIZE));
+ if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) &&
+ mmu->s_pg_sz_m != TO_MB(HPAGE_PMD_SIZE))
+ panic("MMU Super pg size != Linux HPAGE_PMD_SIZE (%luM)\n",
+ (unsigned long)TO_MB(HPAGE_PMD_SIZE));
+
/* Enable the MMU */
write_aux_reg(ARC_REG_PID, MMU_ENABLE);
--
1.9.1
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