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| author | Suzuki Poulose <suzuki@in.ibm.com> | 2011-12-14 23:57:15 +0100 |
|---|---|---|
| committer | Josh Boyer <jwboyer@gmail.com> | 2011-12-20 16:20:19 +0100 |
| commit | 0f890c8d205e47f7cb0d381ffba582a170fd4f72 (patch) | |
| tree | 66d8370622f15636134b83bd19145ce61d8d719c /arch/powerpc/kernel/prom_init.c | |
| parent | powerpc: Fix old bug in prom_init setting of the color (diff) | |
| download | linux-0f890c8d205e47f7cb0d381ffba582a170fd4f72.tar.xz linux-0f890c8d205e47f7cb0d381ffba582a170fd4f72.zip | |
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/kernel/prom_init.c')
| -rw-r--r-- | arch/powerpc/kernel/prom_init.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 55b4080a821e..eca626ea3f23 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -2845,7 +2845,7 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, RELOC(of_platform) = prom_find_machine_type(); prom_printf("Detected machine type: %x\n", RELOC(of_platform)); -#ifndef CONFIG_RELOCATABLE +#ifndef CONFIG_NONSTATIC_KERNEL /* Bail if this is a kdump kernel. */ if (PHYSICAL_START > 0) prom_panic("Error: You can't boot a kdump kernel from OF!\n"); |