From: Nicolas Dufresne <nicolas@ndufresne.ca>
To: Minchan Kim <minchan@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
hyesoo.yu@samsung.com, willy@infradead.org, david@redhat.com,
iamjoonsoo.kim@lge.com, vbabka@suse.cz, surenb@google.com,
pullip.cho@samsung.com, joaodias@google.com, hridya@google.com,
sumit.semwal@linaro.org, john.stultz@linaro.org,
Brian.Starkey@arm.com, linux-media@vger.kernel.org,
devicetree@vger.kernel.org, robh@kernel.org,
christian.koenig@amd.com, linaro-mm-sig@lists.linaro.org
Subject: Re: [PATCH 0/4] Chunk Heap Support on DMA-HEAP
Date: Tue, 08 Dec 2020 11:56:01 -0500 [thread overview]
Message-ID: <13e1fbc75080aada90fd92954ad1fea39f4c1c7a.camel@ndufresne.ca> (raw)
In-Reply-To: <20201117181935.3613581-1-minchan@kernel.org>
Le mardi 17 novembre 2020 à 10:19 -0800, Minchan Kim a écrit :
> This patchset introduces a new dma heap, chunk heap that makes it
> easy to perform the bulk allocation of high order pages.
> It has been created to help optimize the 4K/8K HDR video playback
> with secure DRM HW to protect contents on memory. The HW needs
> physically contiguous memory chunks up to several hundred MB memory.
>
> The chunk heap is registered by device tree with alignment and memory
> node of Contiguous Memory Allocator(CMA). Alignment defines chunk page size.
> For example, alignment 0x1_0000 means chunk page size is 64KB.
> The phandle to memory node indicates contiguous memory allocator(CMA).
> If device node doesn't have cma, the registration of chunk heap fails.
>
> This patchset is against on next-20201110.
I believe you have forgot to reference Open Source / Upstream code using this.
regards,
Nicolas
>
> The patchset includes the following:
> - cma_alloc_bulk API
> - export dma-heap API to register kernel module dma heap.
> - add chunk heap implementation.
> - devicetree
>
> Hyesoo Yu (3):
> dma-buf: add export symbol for dma-heap
> dma-buf: heaps: add chunk heap to dmabuf heaps
> dma-heap: Devicetree binding for chunk heap
>
> Minchan Kim (1):
> mm: introduce cma_alloc_bulk API
>
> .../bindings/dma-buf/chunk_heap.yaml | 52 ++
> drivers/dma-buf/dma-heap.c | 2 +
> drivers/dma-buf/heaps/Kconfig | 9 +
> drivers/dma-buf/heaps/Makefile | 1 +
> drivers/dma-buf/heaps/chunk_heap.c | 458 ++++++++++++++++++
> include/linux/cma.h | 5 +
> include/linux/page-isolation.h | 1 +
> mm/cma.c | 129 ++++-
> mm/page_alloc.c | 19 +-
> mm/page_isolation.c | 3 +-
> 10 files changed, 666 insertions(+), 13 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/dma-buf/chunk_heap.yaml
> create mode 100644 drivers/dma-buf/heaps/chunk_heap.c
>
prev parent reply other threads:[~2020-12-08 16:56 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 18:19 [PATCH 0/4] Chunk Heap Support on DMA-HEAP Minchan Kim
2020-11-17 18:19 ` [PATCH 1/4] mm: introduce cma_alloc_bulk API Minchan Kim
2020-11-23 14:15 ` David Hildenbrand
2020-11-25 20:12 ` Minchan Kim
2020-11-17 18:19 ` [PATCH 2/4] dma-buf: add export symbol for dma-heap Minchan Kim
2020-11-18 5:18 ` John Stultz
2020-11-17 18:19 ` [PATCH 3/4] dma-buf: heaps: add chunk heap to dmabuf heaps Minchan Kim
2020-11-18 9:00 ` Hillf Danton
2020-11-19 1:16 ` Hyesoo Yu
2020-11-17 18:19 ` [PATCH 4/4] dma-heap: Devicetree binding for chunk heap Minchan Kim
2020-11-18 3:00 ` John Stultz
2020-11-19 1:14 ` Hyesoo Yu
2020-11-19 3:19 ` John Stultz
2020-11-19 6:30 ` Hyesoo Yu
2020-12-09 23:53 ` Minchan Kim
2020-12-10 8:15 ` John Stultz
2020-12-10 16:06 ` Minchan Kim
2020-12-10 22:40 ` John Stultz
2020-12-10 23:30 ` Minchan Kim
2020-12-08 16:56 ` Nicolas Dufresne [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=13e1fbc75080aada90fd92954ad1fea39f4c1c7a.camel@ndufresne.ca \
--to=nicolas@ndufresne.ca \
--cc=Brian.Starkey@arm.com \
--cc=akpm@linux-foundation.org \
--cc=christian.koenig@amd.com \
--cc=david@redhat.com \
--cc=devicetree@vger.kernel.org \
--cc=hridya@google.com \
--cc=hyesoo.yu@samsung.com \
--cc=iamjoonsoo.kim@lge.com \
--cc=joaodias@google.com \
--cc=john.stultz@linaro.org \
--cc=linaro-mm-sig@lists.linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=minchan@kernel.org \
--cc=pullip.cho@samsung.com \
--cc=robh@kernel.org \
--cc=sumit.semwal@linaro.org \
--cc=surenb@google.com \
--cc=vbabka@suse.cz \
--cc=willy@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).