[PATCH v3 39/45] powerpc/8xx: Map IMMR with a huge page
From: Christophe Leroy <hidden>
Date: 2020-05-11 11:26:27
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Map the IMMR area with a single 512k huge page. Signed-off-by: Christophe Leroy <redacted> --- 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 570ab2114a73..fb31a0c1c2a4 100644
--- a/arch/powerpc/mm/nohash/8xx.c
+++ b/arch/powerpc/mm/nohash/8xx.c@@ -117,17 +117,13 @@ 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