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mm/debug_vm_pgtables/hugevmap: use the arch helper to identify huge vmap support.

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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@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lkml.kernel.org/r/20200902114222.181353-5-aneesh.kumar@linux.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Aneesh Kumar K.V 2020-10-15 20:04:36 -07:00 committed by Linus Torvalds
parent cfc5bbc4e7
commit 85a144632d
1 changed files with 12 additions and 2 deletions
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14
mm/debug_vm_pgtable.c
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@ -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 +226,9 @@ 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 +325,12 @@ 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 +344,10 @@ 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,