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 02:46:12 -0400 [thread overview]
Message-ID: <20210414064621.29273-1-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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next reply other threads:[~2021-04-14 6:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-14 6:46 Felix Kuehling [this message]
2021-04-14 6:46 ` [PATCH 1/9] drm/amdgpu: Rename kfd_bo_va_list to kfd_mem_attachment Felix Kuehling
2021-04-14 6:46 ` [PATCH 2/9] drm/amdgpu: Keep a bo-reference per-attachment Felix Kuehling
2021-04-14 6:46 ` [PATCH 3/9] drm/amdgpu: Simplify AQL queue mapping Felix Kuehling
2021-04-14 6:46 ` [PATCH 4/9] drm/amdgpu: Add multi-GPU DMA mapping helpers Felix Kuehling
2021-04-14 6:46 ` [PATCH 5/9] drm/amdgpu: DMA map/unmap when updating GPU mappings Felix Kuehling
2021-04-14 6:46 ` [PATCH 6/9] drm/amdgpu: Move kfd_mem_attach outside reservation Felix Kuehling
2021-04-14 6:46 ` [PATCH 7/9] drm/amdgpu: Add DMA mapping of GTT BOs Felix Kuehling
2021-04-14 6:46 ` [PATCH 8/9] drm/ttm: Don't count pages in SG BOs against pages_limit Felix Kuehling
2021-04-14 9:13 ` Daniel Vetter
2021-04-14 6:46 ` [PATCH 9/9] drm/amdgpu: Lock the attached dmabuf in unpopulate Felix Kuehling
2021-04-14 7:33 ` Christian König
2021-04-14 15:15 ` Felix Kuehling
2021-04-15 7:41 ` Christian König
2021-04-15 14:29 ` Felix Kuehling
2021-04-14 6:50 ` [PATCH 0/9] Implement multi-GPU DMA mappings for KFD Felix Kuehling
2021-04-14 6:47 Felix Kuehling
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