[PATCH v3 04/13] mm/debug_vm_pgtables/hugevmap: Use the arch helper to identify huge vmap support.

["Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxx>]

ppc64 supports huge vmap only with radix translation. Hence use arch helper
to determine the huge vmap support.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxx>
---
 mm/debug_vm_pgtable.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index bbf9df0e64c6..28f9d0558c20 100644
--- a/mm/debug_vm_pgtable.c
+++ b/mm/debug_vm_pgtable.c
@@ -28,6 +28,7 @@
 #include <linux/swapops.h>
 #include <linux/start_kernel.h>
 #include <linux/sched/mm.h>
+#include <linux/io.h>
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
 
@@ -206,11 +207,12 @@ static void __init pmd_leaf_tests(unsigned long pfn, pgprot_t prot)
 	WARN_ON(!pmd_leaf(pmd));
 }
 
+#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
 static void __init pmd_huge_tests(pmd_t *pmdp, unsigned long pfn, pgprot_t prot)
 {
 	pmd_t pmd;
 
-	if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
+	if (!arch_ioremap_pmd_supported())
 		return;
 
 	pr_debug("Validating PMD huge\n");
@@ -224,6 +226,10 @@ static void __init pmd_huge_tests(pmd_t *pmdp, unsigned long pfn, pgprot_t prot)
 	pmd = READ_ONCE(*pmdp);
 	WARN_ON(!pmd_none(pmd));
 }
+#else /* !CONFIG_HAVE_ARCH_HUGE_VMAP */
+static void __init pmd_huge_tests(pmd_t *pmdp, unsigned long pfn, pgprot_t prot) { }
+#endif /* !CONFIG_HAVE_ARCH_HUGE_VMAP */
+
 
 static void __init pmd_savedwrite_tests(unsigned long pfn, pgprot_t prot)
 {
@@ -320,11 +326,12 @@ static void __init pud_leaf_tests(unsigned long pfn, pgprot_t prot)
 	WARN_ON(!pud_leaf(pud));
 }
 
+#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
 static void __init pud_huge_tests(pud_t *pudp, unsigned long pfn, pgprot_t prot)
 {
 	pud_t pud;
 
-	if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
+	if (!arch_ioremap_pud_supported())
 		return;
 
 	pr_debug("Validating PUD huge\n");
@@ -338,6 +345,10 @@ static void __init pud_huge_tests(pud_t *pudp, unsigned long pfn, pgprot_t prot)
 	pud = READ_ONCE(*pudp);
 	WARN_ON(!pud_none(pud));
 }
+#else /* !CONFIG_HAVE_ARCH_HUGE_VMAP */
+static void __init pud_huge_tests(pud_t *pudp, unsigned long pfn, pgprot_t prot) { }
+#endif /* !CONFIG_HAVE_ARCH_HUGE_VMAP */
+
 #else  /* !CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
 static void __init pud_basic_tests(unsigned long pfn, pgprot_t prot) { }
 static void __init pud_advanced_tests(struct mm_struct *mm,
-- 
2.26.2