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powerpc/mm: Do radix device tree scanning earlier 

Like we just did for hash, split the device tree scanning parts out and
call them from mmu_early_init_devtree().

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Ellerman 2016-07-26 21:55:27 +10:00
parent bacf9cf883
commit 2537b09c93
3 changed files with 5 additions and 3 deletions
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1
arch/powerpc/include/asm/book3s/64/mmu.h
View File

@ -109,6 +109,7 @@ extern int mmu_io_psize;
/* MMU initialization */
void mmu_early_init_devtree(void);
void hash__early_init_devtree(void);
void radix__early_init_devtree(void);
extern void radix_init_native(void);
extern void hash__early_init_mmu(void);
extern void radix__early_init_mmu(void);

4
arch/powerpc/mm/init_64.c
View File

@ -427,7 +427,9 @@ void __init mmu_early_init_devtree(void)
if (disable_radix)
cur_cpu_spec->mmu_features &= ~MMU_FTR_RADIX;
if (!radix_enabled())
if (radix_enabled())
radix__early_init_devtree();
else
hash__early_init_devtree();
}
#endif /* CONFIG_PPC_STD_MMU_64 */

3
arch/powerpc/mm/pgtable-radix.c
View File

@ -264,7 +264,7 @@ static int __init radix_dt_scan_page_sizes(unsigned long node,
return 1;
}
static void __init radix_init_page_sizes(void)
void __init radix__early_init_devtree(void)
{
int rc;
@ -343,7 +343,6 @@ void __init radix__early_init_mmu(void)
__pte_frag_nr = H_PTE_FRAG_NR;
__pte_frag_size_shift = H_PTE_FRAG_SIZE_SHIFT;
radix_init_page_sizes();
if (!firmware_has_feature(FW_FEATURE_LPAR)) {
radix_init_native();
lpcr = mfspr(SPRN_LPCR);