On Thu, 29 Oct 2020 15:28:34 -0700 John Stultz wrote: > On Thu, Oct 29, 2020 at 12:10 AM Hillf Danton <hdan...@sina.com> wrote: > > On Thu, 29 Oct 2020 00:16:24 +0000 John Stultz wrote: > > > @@ -194,6 +210,9 @@ static int system_heap_mmap(struct dma_buf *dmabuf, > > > struct vm_area_struct *vma) > > > struct sg_page_iter piter; > > > int ret; > > > > > > + if (buffer->uncached) > > > + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); > > > + > > > > Wonder why you turn back to dma_mmap_wc() and friends? > > Sorry, can you expand on what you are proposing here instead? I'm not > sure I see how dma_alloc/mmap/*_wc() quite fits here.
I just wondered if *_wc() could save you two minutes or three. Can you shed some light on your concerns about their unfitness? _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
