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Subject[PATCH v4 39/45] powerpc/8xx: Map IMMR with a huge page
Date
Map the IMMR area with a single 512k huge page.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/mm/nohash/8xx.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/mm/nohash/8xx.c b/arch/powerpc/mm/nohash/8xx.c
index 72fb75f2a5f1..f8fff1fa72e3 100644
--- a/arch/powerpc/mm/nohash/8xx.c
+++ b/arch/powerpc/mm/nohash/8xx.c
@@ -118,17 +118,13 @@ static bool immr_is_mapped __initdata;

void __init mmu_mapin_immr(void)
{
- unsigned long p = PHYS_IMMR_BASE;
- unsigned long v = VIRT_IMMR_BASE;
- int offset;
-
if (immr_is_mapped)
return;

immr_is_mapped = true;

- for (offset = 0; offset < IMMR_SIZE; offset += PAGE_SIZE)
- map_kernel_page(v + offset, p + offset, PAGE_KERNEL_NCG);
+ __early_map_kernel_hugepage(VIRT_IMMR_BASE, PHYS_IMMR_BASE,
+ PAGE_KERNEL_NCG, MMU_PAGE_512K, true);
}

unsigned long __init mmu_mapin_ram(unsigned long base, unsigned long top)
--
2.25.0
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