Re: [PATCH 3/4] drm/tegra: Support kernel mappings with IOMMU

[Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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On Tue, Nov 08, 2016 at 07:51:34PM +0200, Mikko Perttunen wrote:
> From: Arto Merilainen <amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
> 
> Host1x command buffer patching requires that the buffer object can be
> mapped into kernel address space, however, the recent addition of
> IOMMU did not account to this requirement. Therefore Host1x engines
> cannot be used if IOMMU is enabled.
> 
> This patch implements kmap, kunmap, mmap and munmap functions to
> host1x bo objects.
> 
> Signed-off-by: Arto Merilainen <amerilainen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
> Signed-off-by: Mikko Perttunen <mperttunen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
> ---
>  drivers/gpu/drm/tegra/gem.c | 34 +++++++++++++++++++++++++++++++---
>  1 file changed, 31 insertions(+), 3 deletions(-)

Applied with a tiny fixup of the commit message, thanks.

Thierry

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