hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

powerpc/mm: Move disable_radix handling into mmu_early_init_devtree() 

Move the handling of the disable_radix command line argument into the
newly created mmu_early_init_devtree().

It's an MMU option so it's preferable to have it in an mm related file,
and it also means platforms that don't support radix don't have to carry
the code.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Ellerman 2016-07-26 21:29:30 +10:00
parent 1a01dc87e0
commit c610ec60ed
2 changed files with 11 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arch/powerpc/kernel/prom.c
View File

@ -647,14 +647,6 @@ static void __init early_reserve_mem(void)
#endif
}
static bool disable_radix;
static int __init parse_disable_radix(char *p)
{
disable_radix = true;
return 0;
}
early_param("disable_radix", parse_disable_radix);
void __init early_init_devtree(void *params)
{
phys_addr_t limit;
@ -744,11 +736,6 @@ void __init early_init_devtree(void *params)
*/
spinning_secondaries = boot_cpu_count - 1;
#endif
/*
* now fixup radix MMU mode based on kernel command line
*/
if (disable_radix)
cur_cpu_spec->mmu_features &= ~MMU_FTR_RADIX;
mmu_early_init_devtree();

11
arch/powerpc/mm/init_64.c
View File

@ -413,7 +413,18 @@ EXPORT_SYMBOL_GPL(realmode_pfn_to_page);
#endif /* CONFIG_SPARSEMEM_VMEMMAP/CONFIG_FLATMEM */
#ifdef CONFIG_PPC_STD_MMU_64
static bool disable_radix;
static int __init parse_disable_radix(char *p)
{
disable_radix = true;
return 0;
}
early_param("disable_radix", parse_disable_radix);
void __init mmu_early_init_devtree(void)
{
/* Disable radix mode based on kernel command line. */
if (disable_radix)
cur_cpu_spec->mmu_features &= ~MMU_FTR_RADIX;
}
#endif /* CONFIG_PPC_STD_MMU_64 */