On Tue, Jul 6, 2010 at 1:36 PM, Kukjin Kim <kgene....@samsung.com> wrote: > This patch fixes on SECTION_SIZE_BITS for Sparsemem on S5PV210/S5PC110. > Because smallest size of a bank on S5PV210/S5PC110 is aligned by 16MB. > So each section's maximum size should be 16MB.
Could you explain what's the problem? Even though 80MiB is used at logical size. it used the physical 128MiB so. it's reasonable to use 128MiB align instead of 16MiB. Are there boards use 64MiB or less? I think if decrease the SECTIONS_SIZE_BITS, it wastes the memory. Thank you, Kyungmin Park > > Reported-by: Kyongho Cho <pullip....@samsung.com> > Signed-off-by: Kukjin Kim <kgene....@samsung.com> > --- > arch/arm/mach-s5pv210/include/mach/memory.h | 8 ++++++-- > 1 files changed, 6 insertions(+), 2 deletions(-) > > diff --git a/arch/arm/mach-s5pv210/include/mach/memory.h > b/arch/arm/mach-s5pv210/include/mach/memory.h > index 379117e..4a372d8 100644 > --- a/arch/arm/mach-s5pv210/include/mach/memory.h > +++ b/arch/arm/mach-s5pv210/include/mach/memory.h > @@ -16,8 +16,12 @@ > #define PHYS_OFFSET UL(0x20000000) > #define CONSISTENT_DMA_SIZE (SZ_8M + SZ_4M + SZ_2M) > > -/* Maximum of 256MiB in one bank */ > +/* Sparsemem support. Each section is a maximum of 16MB. > + * Because there are many different memory type on S5PC110(MCP), > + * and there is a case that having 80MB, 128MB or 256MB in one > + * bank. > +*/ > #define MAX_PHYSMEM_BITS 32 > -#define SECTION_SIZE_BITS 28 > +#define SECTION_SIZE_BITS 24 > > #endif /* __ASM_ARCH_MEMORY_H */ > -- > 1.6.2.5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" > in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
