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Re: [PATCH 06/13] drm/etnaviv: Use sychronized interface of the IOMMU-API

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Hi Lucas,

On Thu, Aug 17, 2017 at 03:32:38PM +0200, Lucas Stach wrote:
> I don't think this is necessary. Etnaviv has managed and batched up TLB
> flushes from day 1, as they don't happen through the MMU MMIO interface,
> but through the GPU command stream.
> 
> So if my understanding of this series is correct, Etnaviv is just fine
> with the changed semantics of the unsynchronized map/unmap calls.

This is not about any TLB on the GPU that could be flushed through the
GPU command stream, but about the TLB in the IOMMU device. Or is this
actually the same on this hardware? Which IOMMU-driver is use there?


Regards,

	Joerg

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[PATCH 06/13] drm/etnaviv: Use sychronized interface of the IOMMU-API Joerg Roedel <joro@8bytes.org> - 2017-08-17 15:10 +0200
  Re: [PATCH 06/13] drm/etnaviv: Use sychronized interface of the  IOMMU-API Lucas Stach <l.stach@pengutronix.de> - 2017-08-17 15:40 +0200
    Re: [PATCH 06/13] drm/etnaviv: Use sychronized interface of the  IOMMU-API Joerg Roedel <jroedel@suse.de> - 2017-08-17 15:50 +0200
      Re: [PATCH 06/13] drm/etnaviv: Use sychronized interface of the  IOMMU-API Lucas Stach <l.stach@pengutronix.de> - 2017-08-17 16:10 +0200
        Re: [PATCH 06/13] drm/etnaviv: Use sychronized interface of the  IOMMU-API Joerg Roedel <joro@8bytes.org> - 2017-08-17 16:20 +0200
          Re: [PATCH 06/13] drm/etnaviv: Use sychronized interface of the  IOMMU-API Lucas Stach <l.stach@pengutronix.de> - 2017-08-17 16:40 +0200
            Re: [PATCH 06/13] drm/etnaviv: Use sychronized interface of the  IOMMU-API Joerg Roedel <joro@8bytes.org> - 2017-08-17 16:40 +0200

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