Commit a623bb58 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman

powerpc/8xx: Map IMMR with a huge page

Map the IMMR area with a single 512k huge page.
Signed-off-by: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9495dba06669da40e133f24607758fa6dcc65f66.1589866984.git.christophe.leroy@csgroup.eu
parent 34536d78
......@@ -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)
......
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