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authorSuzuki Poulose <suzuki@in.ibm.com>2011-12-15 02:57:15 +0400
committerJosh Boyer <jwboyer@gmail.com>2011-12-20 19:20:19 +0400
commit0f890c8d205e47f7cb0d381ffba582a170fd4f72 (patch)
tree66d8370622f15636134b83bd19145ce61d8d719c /arch/powerpc/configs/44x
parent3f53638c805f75989f4b4be07efcfd173cdd5e2d (diff)
downloadlinux-0f890c8d205e47f7cb0d381ffba582a170fd4f72.tar.xz
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/configs/44x')
-rw-r--r--arch/powerpc/configs/44x/iss476-smp_defconfig3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/configs/44x/iss476-smp_defconfig b/arch/powerpc/configs/44x/iss476-smp_defconfig
index a6eb6ad05b2d..ca00cf750d3e 100644
--- a/arch/powerpc/configs/44x/iss476-smp_defconfig
+++ b/arch/powerpc/configs/44x/iss476-smp_defconfig
@@ -25,7 +25,8 @@ CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="root=/dev/issblk0"
# CONFIG_PCI is not set
CONFIG_ADVANCED_OPTIONS=y
-CONFIG_RELOCATABLE=y
+CONFIG_NONSTATIC_KERNEL=y
+CONFIG_DYNAMIC_MEMSTART=y
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y