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| author | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-26 21:29:30 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-08-01 11:14:53 +1000 |
| commit | c610ec60ed6354157ea7b0c9c9a7236126ef416b (patch) | |
| tree | 69b5697e844b7dfd35bdb240a64d9d5b3bf2a29f /arch/powerpc/mm/init_64.c | |
| parent | 1a01dc87e09b6e60d22c417e00f470a72f00ec80 (diff) | |
| download | linux-c610ec60ed6354157ea7b0c9c9a7236126ef416b.tar.bz2 | |
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>
Diffstat (limited to 'arch/powerpc/mm/init_64.c')
| -rw-r--r-- | arch/powerpc/mm/init_64.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c index d0fb33ac3db2..0d51e6e25db5 100644 --- a/arch/powerpc/mm/init_64.c +++ b/arch/powerpc/mm/init_64.c @@ -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 */ |