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From: Felix Kuehling <Felix.Kuehling@amd.com>
To: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Cc: christian.koenig@amd.com
Subject: [PATCH 0/9] Implement multi-GPU DMA mappings for KFD
Date: Wed, 14 Apr 2021 02:47:55 -0400	[thread overview]
Message-ID: <20210414064804.29356-1-Felix.Kuehling@amd.com> (raw)

This patch series fixes DMA-mappings of system memory (GTT and userptr)
for KFD running on multi-GPU systems with IOMMU enabled. One SG-BO per
GPU is needed to maintain the DMA mappings of each BO.

I ran into some reservation issues when unmapping or freeing DMA-buf
imports. There are a few FIXME comments in this patch series where I'm
hoping for some expert advice. Patches 8 and 9 are some related fixes
in TTM and amdgpu_ttm. I'm pretty sure patch 9 is not the right way to
do this.

Felix Kuehling (9):
  drm/amdgpu: Rename kfd_bo_va_list to kfd_mem_attachment
  drm/amdgpu: Keep a bo-reference per-attachment
  drm/amdgpu: Simplify AQL queue mapping
  drm/amdgpu: Add multi-GPU DMA mapping helpers
  drm/amdgpu: DMA map/unmap when updating GPU mappings
  drm/amdgpu: Move kfd_mem_attach outside reservation
  drm/amdgpu: Add DMA mapping of GTT BOs
  drm/ttm: Don't count pages in SG BOs against pages_limit
  drm/amdgpu: Lock the attached dmabuf in unpopulate

 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h    |  18 +-
 .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c  | 535 ++++++++++++------
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c       |  13 +
 drivers/gpu/drm/ttm/ttm_tt.c                  |  27 +-
 4 files changed, 420 insertions(+), 173 deletions(-)

-- 
2.31.1

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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID (diff)
From: Felix Kuehling <Felix.Kuehling@amd.com>
To: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Cc: christian.koenig@amd.com
Subject: [PATCH 0/9] Implement multi-GPU DMA mappings for KFD
Date: Wed, 14 Apr 2021 02:47:55 -0400	[thread overview]
Message-ID: <20210414064804.29356-1-Felix.Kuehling@amd.com> (raw)

This patch series fixes DMA-mappings of system memory (GTT and userptr)
for KFD running on multi-GPU systems with IOMMU enabled. One SG-BO per
GPU is needed to maintain the DMA mappings of each BO.

I ran into some reservation issues when unmapping or freeing DMA-buf
imports. There are a few FIXME comments in this patch series where I'm
hoping for some expert advice. Patches 8 and 9 are some related fixes
in TTM and amdgpu_ttm. I'm pretty sure patch 9 is not the right way to
do this.

Felix Kuehling (9):
  drm/amdgpu: Rename kfd_bo_va_list to kfd_mem_attachment
  drm/amdgpu: Keep a bo-reference per-attachment
  drm/amdgpu: Simplify AQL queue mapping
  drm/amdgpu: Add multi-GPU DMA mapping helpers
  drm/amdgpu: DMA map/unmap when updating GPU mappings
  drm/amdgpu: Move kfd_mem_attach outside reservation
  drm/amdgpu: Add DMA mapping of GTT BOs
  drm/ttm: Don't count pages in SG BOs against pages_limit
  drm/amdgpu: Lock the attached dmabuf in unpopulate

 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h    |  18 +-
 .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c  | 535 ++++++++++++------
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c       |  13 +
 drivers/gpu/drm/ttm/ttm_tt.c                  |  27 +-
 4 files changed, 420 insertions(+), 173 deletions(-)

-- 
2.31.1

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

             reply	other threads:[~2021-04-14  6:48 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-14  6:47 Felix Kuehling [this message]
2021-04-14  6:47 ` [PATCH 0/9] Implement multi-GPU DMA mappings for KFD Felix Kuehling
2021-04-14  6:47 ` [PATCH 1/9] drm/amdgpu: Rename kfd_bo_va_list to kfd_mem_attachment Felix Kuehling
2021-04-14  6:47   ` Felix Kuehling
2021-04-14  6:47 ` [PATCH 2/9] drm/amdgpu: Keep a bo-reference per-attachment Felix Kuehling
2021-04-14  6:47   ` Felix Kuehling
2021-04-14  6:47 ` [PATCH 3/9] drm/amdgpu: Simplify AQL queue mapping Felix Kuehling
2021-04-14  6:47   ` Felix Kuehling
2021-04-14  6:47 ` [PATCH 4/9] drm/amdgpu: Add multi-GPU DMA mapping helpers Felix Kuehling
2021-04-14  6:47   ` Felix Kuehling
2021-04-14  6:48 ` [PATCH 5/9] drm/amdgpu: DMA map/unmap when updating GPU mappings Felix Kuehling
2021-04-14  6:48   ` Felix Kuehling
2021-04-14  6:48 ` [PATCH 6/9] drm/amdgpu: Move kfd_mem_attach outside reservation Felix Kuehling
2021-04-14  6:48   ` Felix Kuehling
2021-04-14  6:48 ` [PATCH 7/9] drm/amdgpu: Add DMA mapping of GTT BOs Felix Kuehling
2021-04-14  6:48   ` Felix Kuehling
2021-04-14  6:48 ` [PATCH 8/9] drm/ttm: Don't count pages in SG BOs against pages_limit Felix Kuehling
2021-04-14  6:48   ` Felix Kuehling
2021-04-14  6:51   ` Christian König
2021-04-14  6:51     ` Christian König
2021-04-14  9:15     ` Daniel Vetter
2021-04-14  9:15       ` Daniel Vetter
2021-04-14  9:19       ` Christian König
2021-04-14  9:19         ` Christian König
2021-04-14 10:26         ` Daniel Vetter
2021-04-14 10:26           ` Daniel Vetter
2021-04-14 10:49           ` Christian König
2021-04-14 10:49             ` Christian König
2021-04-14 12:25             ` Daniel Vetter
2021-04-14 12:25               ` Daniel Vetter
2021-04-14 12:43               ` Christian König
2021-04-14 12:43                 ` Christian König
2021-04-14 12:47                 ` Daniel Vetter
2021-04-14 12:47                   ` Daniel Vetter
2021-04-14 12:49                   ` Christian König
2021-04-14 12:49                     ` Christian König
2021-04-14 14:41               ` Felix Kuehling
2021-04-14 14:41                 ` Felix Kuehling
2021-04-14  6:48 ` [PATCH 9/9] drm/amdgpu: Lock the attached dmabuf in unpopulate Felix Kuehling
2021-04-14  6:48   ` Felix Kuehling
  -- strict thread matches above, loose matches on Subject: below --
2021-04-14  6:46 [PATCH 0/9] Implement multi-GPU DMA mappings for KFD Felix Kuehling
2021-04-14  6:50 ` Felix Kuehling

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