From: "Michel Dänzer" <michel-otUistvHUpPR7s880joybQ@public.gmane.org>
To: "Felix Kuehling" <felix.kuehling-5C7GfCeVMHo@public.gmane.org>,
"Christian König" <christian.koenig-5C7GfCeVMHo@public.gmane.org>,
oded.gabbay-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: Oak Zeng <Oak.Zeng-5C7GfCeVMHo@public.gmane.org>,
amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: Re: [PATCH 14/25] drm/amdkfd: Populate DRM render device minor
Date: Wed, 14 Feb 2018 09:50:22 +0100 [thread overview]
Message-ID: <255915a6-f101-554a-9087-1fd792ee1de3@daenzer.net> (raw)
In-Reply-To: <c991529e-2489-169c-cc34-96ed5bb94a12-5C7GfCeVMHo@public.gmane.org>
On 2018-02-13 08:18 PM, Felix Kuehling wrote:
> On 2018-02-13 01:15 PM, Christian König wrote:
>> Am 13.02.2018 um 18:18 schrieb Felix Kuehling:
>>
>>> I don't see how you can have separate TTM objects referring to the
>>> same memory.
>>
>> Well that is trivial, we do this all the time with prime and I+A laptops.
>
> As I understand it, you use DMABuf to export/import buffers on multiple
> devices. I believe all devices share a single amdgpu_bo, which contains
> the ttm_buffer_object.
The dma-buf exporter and importer can be different drivers, so this is
not possible.
--
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Mesa and X developer
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next prev parent reply other threads:[~2018-02-14 8:50 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-07 1:32 [PATCH 00/25] Add KFD GPUVM support for dGPUs v2 Felix Kuehling
[not found] ` <1517967174-21709-1-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-07 1:32 ` [PATCH 01/25] drm/amdgpu: remove useless BUG_ONs Felix Kuehling
2018-02-07 1:32 ` [PATCH 02/25] drm/amdgpu: Replace kgd_mem with amdgpu_bo for kernel pinned gtt mem Felix Kuehling
2018-02-07 1:32 ` [PATCH 03/25] drm/amdgpu: Fix header file dependencies Felix Kuehling
2018-02-07 1:32 ` [PATCH 04/25] drm/amdgpu: Fix wrong mask in get_atc_vmid_pasid_mapping_pasid Felix Kuehling
2018-02-07 1:32 ` [PATCH 05/25] drm/amdgpu: Remove unused kfd2kgd interface Felix Kuehling
[not found] ` <1517967174-21709-6-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-11 12:44 ` Oded Gabbay
2018-02-07 1:32 ` [PATCH 06/25] drm/amdgpu: Add KFD eviction fence Felix Kuehling
[not found] ` <1517967174-21709-7-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-11 12:42 ` Oded Gabbay
2018-02-12 19:19 ` Felix Kuehling
2018-02-07 1:32 ` [PATCH 07/25] drm/amdgpu: Update kgd2kfd_shared_resources for dGPU support Felix Kuehling
[not found] ` <1517967174-21709-8-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-11 12:54 ` Oded Gabbay
2018-02-07 1:32 ` [PATCH 08/25] drm/amdgpu: add amdgpu_sync_clone Felix Kuehling
[not found] ` <1517967174-21709-9-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-11 12:54 ` Oded Gabbay
2018-02-07 1:32 ` [PATCH 09/25] drm/amdgpu: Add GPUVM memory management functions for KFD Felix Kuehling
[not found] ` <1517967174-21709-10-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-12 8:42 ` Oded Gabbay
[not found] ` <CAFCwf10ThSfo8zphxPRH549LoyJ1H+XM89rpwpSNeJeuWYayAA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-12 19:20 ` Felix Kuehling
2018-02-07 1:32 ` [PATCH 10/25] drm/amdgpu: Add submit IB function " Felix Kuehling
2018-02-07 1:32 ` [PATCH 11/25] drm/amdkfd: Centralize IOMMUv2 code and make it conditional Felix Kuehling
[not found] ` <1517967174-21709-12-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-07 11:20 ` Christian König
[not found] ` <281bede7-0ae6-c7d1-3d3a-a3e0497244c1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-02-07 20:51 ` Felix Kuehling
[not found] ` <bfe03de8-63fb-efb4-94e5-5eaf4628bfc1-5C7GfCeVMHo@public.gmane.org>
2018-02-08 8:16 ` Christian König
[not found] ` <50866577-97a4-2786-18af-ddb60a435aea-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-02-12 9:06 ` Oded Gabbay
2018-02-07 1:32 ` [PATCH 12/25] drm/amdkfd: Use per-device sched_policy Felix Kuehling
[not found] ` <1517967174-21709-13-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-12 9:07 ` Oded Gabbay
2018-02-07 1:32 ` [PATCH 13/25] drm/amdkfd: Remove unaligned memory access Felix Kuehling
[not found] ` <1517967174-21709-14-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-12 9:11 ` Oded Gabbay
2018-02-07 1:32 ` [PATCH 14/25] drm/amdkfd: Populate DRM render device minor Felix Kuehling
[not found] ` <1517967174-21709-15-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-09 12:34 ` Christian König
[not found] ` <16aa5300-7ddc-518a-2080-70cb31b6ad56-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-02-09 20:31 ` Felix Kuehling
[not found] ` <5f1c33b3-b3ed-f627-9b5c-347b2399d90f-5C7GfCeVMHo@public.gmane.org>
2018-02-11 9:55 ` Christian König
[not found] ` <dd476550-9a48-3adc-30e6-8a94bd04833b-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2018-02-12 16:57 ` Felix Kuehling
[not found] ` <d11c598a-b51f-b957-7dae-485025a1ad34-5C7GfCeVMHo@public.gmane.org>
2018-02-12 23:23 ` Felix Kuehling
[not found] ` <ce14b4cd-2bb7-8f19-b464-ddf9f68f45ad-5C7GfCeVMHo@public.gmane.org>
2018-02-13 10:25 ` Christian König
[not found] ` <cbd18308-c464-125e-ef9f-180c12a9926a-5C7GfCeVMHo@public.gmane.org>
2018-02-13 16:42 ` Felix Kuehling
[not found] ` <a2e39184-8db8-407d-6608-6ae211563459-5C7GfCeVMHo@public.gmane.org>
2018-02-13 17:06 ` Christian König
[not found] ` <8424282f-d196-3cb6-9a6e-a26f8be7d198-5C7GfCeVMHo@public.gmane.org>
2018-02-13 17:18 ` Felix Kuehling
[not found] ` <ebf4d6d7-2424-764f-0bc0-615240c82483-5C7GfCeVMHo@public.gmane.org>
2018-02-13 18:15 ` Christian König
[not found] ` <9f078a60-0cca-ba43-3e1c-c67c2b758988-5C7GfCeVMHo@public.gmane.org>
2018-02-13 19:18 ` Felix Kuehling
[not found] ` <c991529e-2489-169c-cc34-96ed5bb94a12-5C7GfCeVMHo@public.gmane.org>
2018-02-13 23:17 ` Felix Kuehling
[not found] ` <b28b0e4c-f16b-0751-7957-45196c26da82-5C7GfCeVMHo@public.gmane.org>
2018-02-14 7:42 ` Christian König
[not found] ` <ca973468-f1af-b510-a6db-af29e279f5ca-5C7GfCeVMHo@public.gmane.org>
2018-02-14 16:35 ` Felix Kuehling
[not found] ` <50befcd2-6a1a-534e-1699-8556c4977b76-5C7GfCeVMHo@public.gmane.org>
2018-02-14 16:50 ` Michel Dänzer
[not found] ` <ef95f1a4-7b30-47c8-8f33-4e6379d0694b-otUistvHUpPR7s880joybQ@public.gmane.org>
2018-02-14 18:12 ` Felix Kuehling
2018-02-14 18:15 ` Christian König
[not found] ` <df9f32ce-7cfe-8684-1090-48f37863a3c7-5C7GfCeVMHo@public.gmane.org>
2018-02-14 18:24 ` Felix Kuehling
[not found] ` <78274290-eaf9-0f79-eb2b-ec7866a4cb70-5C7GfCeVMHo@public.gmane.org>
2018-02-14 18:33 ` Christian König
[not found] ` <e236e458-5114-49ec-9266-945d11f29035-5C7GfCeVMHo@public.gmane.org>
2018-02-14 19:01 ` Felix Kuehling
[not found] ` <2421ca47-773e-d9c7-0fec-d573812df2c4-5C7GfCeVMHo@public.gmane.org>
2018-02-14 19:04 ` Felix Kuehling
2018-02-14 8:50 ` Michel Dänzer [this message]
[not found] ` <255915a6-f101-554a-9087-1fd792ee1de3-otUistvHUpPR7s880joybQ@public.gmane.org>
2018-02-14 16:39 ` Felix Kuehling
2018-02-13 10:46 ` Christian König
[not found] ` <d5499f91-6ebf-94ae-f933-d57cd953e01d-5C7GfCeVMHo@public.gmane.org>
2018-02-13 16:56 ` Felix Kuehling
[not found] ` <a776f882-2612-35a1-431b-2e939cd36f29-5C7GfCeVMHo@public.gmane.org>
2018-02-13 18:45 ` Christian König
[not found] ` <6c9d2b9e-7ae9-099a-9d02-bc2a4985a95a-5C7GfCeVMHo@public.gmane.org>
2018-02-13 19:22 ` Felix Kuehling
[not found] ` <b6af300e-be33-b802-385a-20980d95545d-5C7GfCeVMHo@public.gmane.org>
2018-02-14 7:49 ` Christian König
2018-02-07 1:32 ` [PATCH 15/25] drm/amdkfd: Add GPUVM virtual address space to PDD Felix Kuehling
[not found] ` <1517967174-21709-16-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-12 9:16 ` Oded Gabbay
2018-02-07 1:32 ` [PATCH 16/25] drm/amdkfd: Implement KFD process eviction/restore Felix Kuehling
[not found] ` <1517967174-21709-17-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-12 9:36 ` Oded Gabbay
2018-02-07 1:32 ` [PATCH 17/25] uapi: Fix type used in ioctl parameter structures Felix Kuehling
[not found] ` <1517967174-21709-18-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-02-12 9:41 ` Oded Gabbay
2018-02-07 1:32 ` [PATCH 18/25] drm/amdkfd: Remove limit on number of GPUs Felix Kuehling
2018-02-07 1:32 ` [PATCH 19/25] drm/amdkfd: Aperture setup for dGPUs Felix Kuehling
2018-02-07 1:32 ` [PATCH 20/25] drm/amdkfd: Add per-process IDR for buffer handles Felix Kuehling
2018-02-07 1:32 ` [PATCH 21/25] drm/amdkfd: Allocate CWSR trap handler memory for dGPUs Felix Kuehling
2018-02-07 1:32 ` [PATCH 22/25] drm/amdkfd: Add TC flush on VMID deallocation for Hawaii Felix Kuehling
2018-02-07 1:32 ` [PATCH 23/25] drm/amdkfd: Add ioctls for GPUVM memory management Felix Kuehling
2018-02-07 1:32 ` [PATCH 24/25] drm/amdkfd: Kmap event page for dGPUs Felix Kuehling
2018-02-07 1:32 ` [PATCH 25/25] drm/amdkfd: Add module option for testing large-BAR functionality Felix Kuehling
-- strict thread matches above, loose matches on Subject: below --
2018-01-27 1:09 [PATCH 00/25] Add KFD GPUVM support for dGPUs Felix Kuehling
[not found] ` <1517015381-1080-1-git-send-email-Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>
2018-01-27 1:09 ` [PATCH 14/25] drm/amdkfd: Populate DRM render device minor Felix Kuehling
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