From: sashiko-bot@kernel.org
To: "Alistair Popple" <apopple@nvidia.com>, linux-rdma@vger.kernel.org
Subject: Re: [PATCH v2 07/23] dma-buf: Add match set queries for exporter placement decisions
Date: Fri, 06 Nov 2026 06:43:51 +0000 [thread overview]
Message-ID: <sashiko-outbox-200923@kernel.org> (raw)
In-Reply-To: <20261105-dma_mapping_type_v4-v2-7-78b8dc9ae80a@nvidia.com>
> Exporters deciding placement in their pin path walk every attachment
> to determine whether it can take P2P. With selection deferred to pin or
> map an unmapped attachment only holds the exporter's default. Therefore
> determining what is possible requires walking attachments.
>
> Add dma_buf_attach_accepts() and dma_buf_attach_accepts_sgt_p2p() to
> walk the match set and determine if an attachment is possible with P2P.
> A future series will convert P2P into a distinct match type.
>
> Signed-off-by: Alistair Popple <apopple@nvidia.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261105-dma_mapping_type_v4-v2-0-78b8dc9ae80a@nvidia.com?part=7
next prev parent reply other threads:[~2026-11-06 6:43 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-05 6:40 [PATCH v2 00/23] DMA-buf mapping types Alistair Popple
2026-11-05 6:40 ` [PATCH v2 01/23] treewide: Rename dma_buf_(un)map_attachment() to dma_buf_(un)map_sgt() Alistair Popple
2026-11-05 9:55 ` Christian König
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 02/23] dma-buf: Introduce DMA-buf mapping types Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 03/23] dma-buf: Add the SGT DMA mapping type Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 04/23] dma-buf: Negotiate the mapping type in dma_buf_dynamic_attach() Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 05/23] dma-buf: Route SGT related actions through the attachment's mapping type Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 06/23] dma-buf: Let the exporter select mapping type at pin/map Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-07 8:57 ` Karl Mehltretter
2026-11-09 2:58 ` Alistair Popple
2026-11-09 10:59 ` Christian König
2026-11-05 6:40 ` [PATCH v2 07/23] dma-buf: Add match set queries for exporter placement decisions Alistair Popple
2026-11-06 6:43 ` sashiko-bot [this message]
2026-11-05 6:40 ` [PATCH v2 08/23] dma-buf: Add dma_buf_mapping_map() returning a type-tagged mapping Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 09/23] dma-buf: Allow single exporter drivers to avoid the match_mapping function Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 10/23] drm: Check the SGT ops for drm_gem_map_dma_buf() Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 11/23] dma-buf: Convert all the simple exporters to use SGT mapping type Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 12/23] drm/vmwgfx: Use match_mapping instead of dummy calls Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 13/23] accel/habanalabs: Use the SGT_P2P mapping type Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 14/23] drm/xe/dma-buf: Use the SGT " Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 15/23] drm/amdgpu: " Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 16/23] vfio/pci: Change the DMA-buf exporter to use mapping_type Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 17/23] RDMA/uverbs: Use the SGT_P2P mapping type Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 18/23] dma-buf: Update dma_buf_phys_vec_to_sgt() to use the SGT " Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 19/23] iio: buffer: convert " Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 20/23] functionfs: " Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 21/23] dma-buf: Remove unused SGT stuff from the common structures Alistair Popple
2026-11-06 6:43 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 22/23] dma-buf: Add kunit tests for mapping type Alistair Popple
2026-11-06 6:44 ` sashiko-bot
2026-11-05 6:40 ` [PATCH v2 23/23] dma-buf: Add kunit tests for mapping type selection Alistair Popple
2026-11-06 6:44 ` sashiko-bot
2026-11-05 16:18 ` [PATCH v2 00/23] DMA-buf mapping types Maarten Lankhorst
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