Hi Sam, Today's linux-next build (powerpc ppc64_defconfig) failed like this:
arch/powerpc/platforms/cell/spu_base.c: In function '__spu_trap_data_seg':
arch/powerpc/platforms/cell/spu_base.c:194: error: duplicate case value
arch/powerpc/platforms/cell/spu_base.c:177: error: previously used here
This means that USER_REGION_ID (line 177) is the same as KERNEL_REGION_ID
(line 194).
>From include/asm-powerpc/pgtable-ppc64.h:
#define REGION_SHIFT 60UL
#define REGION_MASK (0xfUL << REGION_SHIFT)
#define REGION_ID(ea) (((unsigned long)(ea)) >> REGION_SHIFT)
#define VMALLOC_REGION_ID (REGION_ID(VMALLOC_START))
#define KERNEL_REGION_ID (REGION_ID(PAGE_OFFSET))
#define VMEMMAP_REGION_ID (0xfUL)
#define USER_REGION_ID (0UL)
>From include/asm-powerpc/page.h:
#define PAGE_OFFSET ASM_CONST(CONFIG_PAGE_OFFSET)
>From .config:
CONFIG_PAGE_OFFSET=0xffffffff
Not good.
>From arch/powerpc/Kconfig (ADVANCED_OPTIONS is not set):
config PAGE_OFFSET_BOOL
bool "Set custom page offset address"
depends on ADVANCED_OPTIONS
config PAGE_OFFSET
hex "Virtual address of memory base" if PAGE_OFFSET_BOOL
default "0xc0000000"
if PPC64
config PAGE_OFFSET
hex
default "0xc000000000000000"
endif
Reverting commit 9ba4ff5059e1a26698786373c8c71321c37ef7f9 ("kconfig:
normalize int/hex values") seems to have fixed it.
>From .config:
CONFIG_PAGE_OFFSET=0xc000000000000000
--
Cheers,
Stephen Rothwell [EMAIL PROTECTED]
http://www.canb.auug.org.au/~sfr/
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