On 06/07/2016 02:06 AM, Liu Gang wrote: > The 'dma-coherent' indicates that the hardware IP block can ensure > the coherency of the data transferred from/to the IP block. This > can avoid the software cache flush/invalid actions, and improve > the performance significantly. > > The PCI IP block of ls1043a has this capability, so adding this > feature to improve the PCI performance. > > Signed-off-by: Liu Gang <Gang.Liu@xxxxxxx> > --- > arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi | 3 +++ > 1 file changed, 3 insertions(+) Why not ls2080a as well? What about non-PCI devices? Pretty much everything on these chips should be coherent as long as it's properly configured. -Scott -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
