On Wed, Jul 16 2014, Zubair Lutfullah Kakakhel <Zubair.Kakakhel@xxxxxxxxxx> wrote: > Adds cma support to the mips architecture. > > cma uses memblock. However, mips uses bootmem. Does cma_early_percent_memory work correctly then? > bootmem is informed about any regions reserved by memblock Alternatively maybe it would make sense to create a new definition of dma_contiguous_reserve_area that uses bootmem and choose it based on some CONFIG_CMA_USE_BOOTMEM which would be selected by MIPS. > dma api is modified to use cma reserved memory regions when available > > Tested using cma_test. cma_test is a simple driver that assigns blocks > of memory from cma reserved sections. > > Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@xxxxxxxxxx> Acked-by: Michal Nazarewicz <mina86@xxxxxxxxxx> > --- > arch/mips/Kconfig | 1 + > arch/mips/include/asm/Kbuild | 1 + > arch/mips/kernel/setup.c | 9 +++++++++ > arch/mips/mm/dma-default.c | 37 +++++++++++++++++++++++++------------ > 4 files changed, 36 insertions(+), 12 deletions(-) > -- Best regards, _ _ .o. | Liege of Serenely Enlightened Majesty of o' \,=./ `o ..o | Computer Science, Michał “mina86” Nazarewicz (o o) ooo +--<mpn@xxxxxxxxxx>--<xmpp:mina86@xxxxxxxxxx>--ooO--(_)--Ooo--
