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Diffstat (limited to 'lib')
-rw-r--r--lib/ioremap.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/ioremap.c b/lib/ioremap.c
index 2008652c9a1f..be249062ba6e 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -80,6 +80,14 @@ static inline int ioremap_pmd_range(pud_t *pud, unsigned long addr,
return -ENOMEM;
do {
next = pmd_addr_end(addr, end);
+
+ if (ioremap_pmd_enabled() &&
+ ((next - addr) == PMD_SIZE) &&
+ IS_ALIGNED(phys_addr + addr, PMD_SIZE)) {
+ if (pmd_set_huge(pmd, phys_addr + addr, prot))
+ continue;
+ }
+
if (ioremap_pte_range(pmd, addr, next, phys_addr + addr, prot))
return -ENOMEM;
} while (pmd++, addr = next, addr != end);
@@ -98,6 +106,14 @@ static inline int ioremap_pud_range(pgd_t *pgd, unsigned long addr,
return -ENOMEM;
do {
next = pud_addr_end(addr, end);
+
+ if (ioremap_pud_enabled() &&
+ ((next - addr) == PUD_SIZE) &&
+ IS_ALIGNED(phys_addr + addr, PUD_SIZE)) {
+ if (pud_set_huge(pud, phys_addr + addr, prot))
+ continue;
+ }
+
if (ioremap_pmd_range(pud, addr, next, phys_addr + addr, prot))
return -ENOMEM;
} while (pud++, addr = next, addr != end);