On Tue, 04 Feb 2014 13:09:32 +0100, Marek Szyprowski <m.szyprow...@samsung.com> wrote: > Enable reserved memory initialization from device tree. > > Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> > Cc: Laura Abbott <lau...@codeaurora.org> > Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com> > --- > arch/arm/mm/init.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c > index 804d61566a53..ebafdb479410 100644 > --- a/arch/arm/mm/init.c > +++ b/arch/arm/mm/init.c > @@ -17,6 +17,7 @@ > #include <linux/nodemask.h> > #include <linux/initrd.h> > #include <linux/of_fdt.h> > +#include <linux/of_reserved_mem.h> > #include <linux/highmem.h> > #include <linux/gfp.h> > #include <linux/memblock.h> > @@ -323,6 +324,8 @@ void __init arm_memblock_init(struct meminfo *mi, > if (mdesc->reserve) > mdesc->reserve(); > > + early_init_dt_scan_reserved_mem(); > +
The new binding is being made fundamental. If the reserved-memory node is present, then it needs to be honored, even if the kernel doesn't know how to use the regions. Therefore, This needs to be unconditional for all architectures. The hook should be called in early_init_dt_scan() (drivers/of/fdt.c) immediately after the early_init_dt_scan_memory() hook. > /* > * reserve memory for DMA contigouos allocations, > * must come from DMA area inside low memory > -- > 1.7.9.5 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
