Hi Vineet, I just used it against 4.4-rc4 and its compiling and linking fine. :)
Regards, C.Palminha On 03-12-2015 03:57, Vineet Gupta wrote: > On Thursday 03 December 2015 05:54 AM, Carlos Palminha wrote: >> Hi Vineet, >> >> I cherry picked those commits and now i'm getting a different error. >> >> any clue? Am i testing "untested" code?! :) >> >> Regards, >> C.Palminha >> >> --- >> CC init/do_mounts.o >> In file included from include/linux/skbuff.h:34:0, >> from include/linux/icmpv6.h:4, >> from include/linux/ipv6.h:71, >> from include/net/ipv6.h:16, >> from include/linux/sunrpc/clnt.h:27, >> from include/linux/nfs_fs.h:30, >> from init/do_mounts.c:32: >> include/linux/dma-mapping.h: In function ‘dma_set_coherent_mask’: >> include/linux/dma-mapping.h:104:2: error: implicit declaration of function >> ‘dma_supported’ [-Werror=implicit-function-declaration] >> if (!dma_supported(dev, mask)) >> ^ >> include/linux/dma-mapping.h: In function ‘dma_set_mask_and_coherent’: >> include/linux/dma-mapping.h:119:2: error: implicit declaration of function >> ‘dma_set_mask’ [-Werror=implicit-function-declaration] >> int rc = dma_set_mask(dev, mask); >> ^ >> include/linux/dma-mapping.h: In function ‘dma_zalloc_coherent’: >> include/linux/dma-mapping.h:190:2: error: implicit declaration of function >> ‘dma_alloc_coherent’ [-Werror=implicit-function-declaration] >> void *ret = dma_alloc_coherent(dev, size, dma_handle, >> ^ >> include/linux/dma-mapping.h:190:14: warning: initialization makes pointer >> from integer without a cast [enabled by default] >> void *ret = dma_alloc_coherent(dev, size, dma_handle, >> ^ >> In file included from include/linux/icmpv6.h:4:0, >> from include/linux/ipv6.h:71, >> from include/net/ipv6.h:16, >> from include/linux/sunrpc/clnt.h:27, >> from include/linux/nfs_fs.h:30, >> from init/do_mounts.c:32: >> include/linux/skbuff.h: In function ‘skb_frag_dma_map’: >> include/linux/skbuff.h:2510:2: error: implicit declaration of function >> ‘dma_map_page’ [-Werror=implicit-function-declaration] >> return dma_map_page(dev, skb_frag_page(frag), > > I'm not sure what exact code you are building off - linux-next of today builds > just fine ! > Can u not baseline ur work off linux-next > > -Vineet > > >> >> >> On 02-12-2015 13:19, Carlos Palminha wrote: >>> Hi Vineet, >>> >>> I'm using drm-next (its currently based on 4.4-rc3). >>> >>> Regarding linux-next DMA patches I assume you are talking about these 3 >>> commits: >>> * 19ab4d3aff0426058fe36aae4ac56320a6e4c6be >>> * 8ee24f794c2dfff85930f25eab4f11a9bde7f920 >>> * c27a81903ba596c879a45e3028135a4f37fb1837 >>> >>> Regards, >>> C.Palminha >>> >>> -----Original Message----- >>> From: Vineet Gupta >>> Sent: quarta-feira, 2 de Dezembro de 2015 06:32 >>> To: Carlos Palminha; linux-snps-arc@lists.infradead.org >>> Cc: Alexey Brodkin >>> Subject: Re: Non existing DMA functions in ARC: dma_alloc_attrs, >>> dma_free_attrs, dma_mmap_attrs >>> >>> On Wednesday 02 December 2015 01:09 AM, Carlos Palminha wrote: >>>> Hi guys, >>>> >>>> I'm bringing up a new ARC PGU driver for DRM framework with latest kernel >>>> tree. >>>> I'm using ARC AXS101 as a base and selected one the DRM required config: >>>> HAVE_DMA_ATTRS due to some memory allocation helpers in DRM. >>>> >>>> I'm getting some errors with DMA functions not implemented in ARC: >>>> dma_alloc_attrs, dma_free_attrs, dma_mmap_attrs >>>> >>>> Any clue? >>>> >>>> Regards, >>>> C.Palminha >>>> >>>> --- >>>> include/linux/dma-mapping.h: In function 'dma_alloc_writecombine': >>>> include/linux/dma-mapping.h:283:2: error: implicit declaration of function >>>> 'dma_alloc_attrs' [-Werror=implicit-function-declaration] >>>> return dma_alloc_attrs(dev, size, dma_addr, gfp, &attrs); >>> This is because ARC port current lacks support for dma_attr_t and >>> associated helpers. >>> There is a series in flight in linux-next, by Christoph, which already >>> addresses that. >>> >>> You can either cherry-pick those or in the interim use the hack attached. >>> >>> P.S. Per your comment at top, I'm assuming you are working off of mainline >>> 4.3 or 4.4 >>> >>> -Vineet >>> > _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
