Re: Re: [PATCH] arm:swiotlb:keep disabled in default configuration

2016-06-26 Thread Manjeet Pawar
>> > >> > From: Rohit Thapliyal >> > >> > swiotlb implementation not required to be enabled in arm and >> > disabling it reduces uImage size by 16KB. >> > >> >> How so? There are no DMA operations on ARM? >Xen actively uses the swiotlb on ARM, see >arch/arm64/include/asm/dma-mapping.h:get_dma_o

Re: Re: [PATCH] arm:swiotlb:keep disabled in default configuration

2016-06-23 Thread Manjeet Pawar
> > On Jun 23, 2016 8:27 AM, "Manjeet Pawar" wrote: >> > >> > From: Rohit Thapliyal >> > >> > swiotlb implementation not required to be enabled in arm and >> > disabling it reduces uImage size by 16KB. >> > >> >> How so? There are no DMA operations on ARM? >Xen actively uses the swiotlb on ARM,