Re: [PATCH v2] drm: gem_cma_helper.c: Allow importing of contiguous scatterlists with nents > 1

On Wed, Nov 15, 2017 at 03:24:41PM +0100, Noralf Trønnes wrote: > > Den 15.11.2017 14.04, skrev Liviu Dudau: > > Hi, > > > > On Sat, Nov 11, 2017 at 02:47:35PM +0200, Laurent Pinchart wrote: > > > Hi Liviu, > > > > > > Thank you for the patch. > > > > > > On Friday, 10 November 2017 15:33:10 EE

Re: [PATCH v2] drm: gem_cma_helper.c: Allow importing of contiguous scatterlists with nents > 1

Den 15.11.2017 14.04, skrev Liviu Dudau: Hi, On Sat, Nov 11, 2017 at 02:47:35PM +0200, Laurent Pinchart wrote: Hi Liviu, Thank you for the patch. On Friday, 10 November 2017 15:33:10 EET Liviu Dudau wrote: drm_gem_cma_prime_import_sg_table() will fail if the number of entries in the sg_tabl

Re: [PATCH v2] drm: gem_cma_helper.c: Allow importing of contiguous scatterlists with nents > 1

Hi, On Sat, Nov 11, 2017 at 02:47:35PM +0200, Laurent Pinchart wrote: > Hi Liviu, > > Thank you for the patch. > > On Friday, 10 November 2017 15:33:10 EET Liviu Dudau wrote: > > drm_gem_cma_prime_import_sg_table() will fail if the number of entries > > in the sg_table > 1. However, you can have

Re: [PATCH v2] drm: gem_cma_helper.c: Allow importing of contiguous scatterlists with nents > 1

Hi Liviu, Thank you for the patch. On Friday, 10 November 2017 15:33:10 EET Liviu Dudau wrote: > drm_gem_cma_prime_import_sg_table() will fail if the number of entries > in the sg_table > 1. However, you can have a device that uses an IOMMU > engine and can map a discontiguous buffer with multipl

[PATCH v2] drm: gem_cma_helper.c: Allow importing of contiguous scatterlists with nents > 1

drm_gem_cma_prime_import_sg_table() will fail if the number of entries in the sg_table > 1. However, you can have a device that uses an IOMMU engine and can map a discontiguous buffer with multiple entries that have consecutive sg_dma_addresses, effectively making it contiguous. Allow for that scen