On Thu, Aug 19, 2021 at 10:12:48AM +0200, Michael Tretter wrote: > If CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS is enabled, loading the FPGA fails > with an abort, because the optimized memcpy can only be used on cached memory. > As the bitstream can be several MBs large, we want to use the optimized > functions. Fix the abort by using a cached mapping with streaming DMA. > > v2 drops the explicit dma_sync_single_for_device and instead uses > dma_map_single to flush the temporary buffer. I also fixed the error handling > in case the mapping fails and made the size of the extra space at the end of > the temporary buffer more explicit. > > Michael > > Changelog: > > Michael Tretter (3): > firmware: zynqmp-fpga: initialize flags at function start > firmware: zynqmp-fpga: avoid additional buffer for size argument > firmware: zynqmp-fpga: do not use DMA coherent memory for bitstream > > drivers/firmware/zynqmp-fpga.c | 55 +++++++++++++++++----------------- > 1 file changed, 27 insertions(+), 28 deletions(-) Applied, thanks Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
