| Message ID | 1348242975-19184-13-git-send-email-cyril@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Sep 21, 2012 at 04:56:10PM +0100, Cyril Chemparathy wrote: > This patch adds an architecture defined override for ARCH_LOW_ADDRESS_LIMIT. > On PAE systems, the absence of this override causes bootmem to incorrectly > limit itself to 32-bit addressable physical memory. > > Signed-off-by: Cyril Chemparathy <cyril@ti.com> > Signed-off-by: Vitaly Andrianov <vitalya@ti.com> > --- > arch/arm/include/asm/memory.h | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h > index f3e8f88..19221c2 100644 > --- a/arch/arm/include/asm/memory.h > +++ b/arch/arm/include/asm/memory.h > @@ -315,6 +315,8 @@ static inline __deprecated void *bus_to_virt(unsigned long x) > #define arch_is_coherent() 0 > #endif > > +#define ARCH_LOW_ADDRESS_LIMIT PHYS_MASK It looks like mm/bootmem.c casts this to unsigned long anyway, so the patch doesn't have any effect on its own.
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index f3e8f88..19221c2 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -315,6 +315,8 @@ static inline __deprecated void *bus_to_virt(unsigned long x) #define arch_is_coherent() 0 #endif +#define ARCH_LOW_ADDRESS_LIMIT PHYS_MASK + #endif #include <asm-generic/memory_model.h>