Re: [PATCH v2 04/10] drm/nouveau/fb: add GK20A support

On Mon, Apr 21, 2014 at 03:02:16PM +0900, Alexandre Courbot wrote: [...]

diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramgk20a.c

[...]

• pages = dma_alloc_from_contiguous(dev, ncmin, order);
  

• if (!pages) {
  

• 	gk20a_ram_put(pfb, &mem);
  

• 	return -ENOMEM;
  

• }
  

• dma_addr = pfn_to_dma(nv_device_base(nv_device(pfb)),
  

• 		      page_to_pfn(pages));
  

This breaks compilation on x86 because neither pfn_to_dma() nor dma_to_pfn() are available. Is there some other way this can be allocated so that these functions don't need to be called?

Thierry