arm_coherent_dma_alloc

[Aggrwal Poonam]

Hello


I am looking at the  file: "arch/arm/mm/dma-mapping.c"

static void *arm_coherent_dma_alloc(struct device *dev, size_t size,
        dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs)
{
        pgprot_t prot = __get_dma_pgprot(attrs, pgprot_kernel);
        void *memory;

        if (dma_alloc_from_coherent(dev, size, handle, &memory))
                return memory;

        return __dma_alloc(dev, size, handle, gfp, prot, true,
                           __builtin_return_address(0));
}

I want to understand the attributes of  memory allocated using __dma_alloc, in terms of cacheable.

This specific question is for CortexA7 MP core.

Regards
Poonam