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powerpc/8xx: Map IMMR with a huge page

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Map the IMMR area with a single 512k huge page.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9495dba06669da40e133f24607758fa6dcc65f66.1589866984.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2020-05-19 05:49:23 +00:00 committed by Michael Ellerman
parent 34536d7806
commit a623bb5861
1 changed files with 2 additions and 6 deletions
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8
arch/powerpc/mm/nohash/8xx.c
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@ -118,17 +118,13 @@ static bool immr_is_mapped __initdata;
void __init mmu_mapin_immr(void) void __init mmu_mapin_immr(void)
{ {
unsigned long p = PHYS_IMMR_BASE;
unsigned long v = VIRT_IMMR_BASE;
int offset;
if (immr_is_mapped) if (immr_is_mapped)
return; return;
immr_is_mapped = true; immr_is_mapped = true;
for (offset = 0; offset < IMMR_SIZE; offset += PAGE_SIZE) __early_map_kernel_hugepage(VIRT_IMMR_BASE, PHYS_IMMR_BASE,
map_kernel_page(v + offset, p + offset, PAGE_KERNEL_NCG); PAGE_KERNEL_NCG, MMU_PAGE_512K, true);
} }
unsigned long __init mmu_mapin_ram(unsigned long base, unsigned long top) unsigned long __init mmu_mapin_ram(unsigned long base, unsigned long top)