[PATCH 05/11] ARCv2: mm: THP: boot validation/reporting
From: Vineet Gupta <hidden>
Date: 2015-08-27 09:04:29
Also in:
linux-arch
Subsystem:
synopsys arc architecture, the rest · Maintainers:
Vineet Gupta, Linus Torvalds
Signed-off-by: Vineet Gupta <redacted> --- 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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