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| author | Suzuki Poulose <suzuki@in.ibm.com> | 2011-12-14 22:57:15 +0000 |
|---|---|---|
| committer | Josh Boyer <jwboyer@gmail.com> | 2011-12-20 10:20:19 -0500 |
| commit | 0f890c8d205e47f7cb0d381ffba582a170fd4f72 (patch) | |
| tree | 66d8370622f15636134b83bd19145ce61d8d719c /arch/powerpc/mm | |
| parent | 3f53638c805f75989f4b4be07efcfd173cdd5e2d (diff) | |
| download | linux-0f890c8d205e47f7cb0d381ffba582a170fd4f72.tar.bz2 | |
powerpc: Rename mapping based RELOCATABLE to DYNAMIC_MEMSTART for BookE
The current implementation of CONFIG_RELOCATABLE in BookE is based
on mapping the page aligned kernel load address to KERNELBASE. This
approach however is not enough for platforms, where the TLB page size
is large (e.g, 256M on 44x). So we are renaming the RELOCATABLE used
currently in BookE to DYNAMIC_MEMSTART to reflect the actual method.
The CONFIG_RELOCATABLE for PPC32(BookE) based on processing of the
dynamic relocations will be introduced in the later in the patch series.
This change would allow the use of the old method of RELOCATABLE for
platforms which can afford to enforce the page alignment (platforms with
smaller TLB size).
Changes since v3:
* Introduced a new config, NONSTATIC_KERNEL, to denote a kernel which is
either a RELOCATABLE or DYNAMIC_MEMSTART(Suggested by: Josh Boyer)
Suggested-by: Scott Wood <scottwood@freescale.com>
Tested-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Suzuki K. Poulose <suzuki@in.ibm.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linux ppc dev <linuxppc-dev@lists.ozlabs.org>
Signed-off-by: Josh Boyer <jwboyer@gmail.com>
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/44x_mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/mm/44x_mmu.c b/arch/powerpc/mm/44x_mmu.c index 5d4e3fff6d6d..388b95e1a009 100644 --- a/arch/powerpc/mm/44x_mmu.c +++ b/arch/powerpc/mm/44x_mmu.c @@ -217,7 +217,7 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base, { u64 size; -#ifndef CONFIG_RELOCATABLE +#ifndef CONFIG_NONSTATIC_KERNEL /* We don't currently support the first MEMBLOCK not mapping 0 * physical on those processors */ |