* Tomi Valkeinen <tomi.valkeinen@xxxxxx> [131230 05:21]: > The omapfb driver uses dma_alloc to reserve memory for the framebuffers. > However, on some use cases, even when CMA is in use, it's quite probable > that omapfb fails to allocate the fb, either due to not enough free dma > memory, fragmented dma memory, or CMA failing to make enough contiguous > space. > > This patch adds a kernel cmdline parameter 'omapfb_vram' which can be > used to give the size of a memory area reserved exclusively for omapfb, > and optionally a physical address where the memory area is reserved. > > The memory area is reserved with memblock, and assigned to omapfb with > dma_declare_coherent_memory. The dma_alloc function will first try to > allocate the fb from the coherent memory area, and if that fails, it'll > use the normal method of allocation. > > Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx> > Cc: Ivaylo Dimitrov <freemangordon@xxxxxx> Feel free to queue this along with the DSS patches: Acked-by: Tony Lindgren <tony@xxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
