From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Yong Wu <yong.wu@mediatek.com>, Rob Herring <robh+dt@kernel.org>,
Sumit Semwal <sumit.semwal@linaro.org>,
christian.koenig@amd.com,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: devicetree@vger.kernel.org, Conor Dooley <conor+dt@kernel.org>,
Benjamin Gaignard <benjamin.gaignard@collabora.com>,
kuohong.wang@mediatek.com, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, tjmercier@google.com,
linaro-mm-sig@lists.linaro.org, John Stultz <jstultz@google.com>,
jianjiao.zeng@mediatek.com,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-media@vger.kernel.org
Subject: Re: [PATCH 9/9] dma_buf: heaps: mtk_sec_heap: Add a new CMA heap
Date: Mon, 11 Sep 2023 11:33:57 +0200 [thread overview]
Message-ID: <dd418409-1c91-f58d-f8ed-a0c8d42a26be@collabora.com> (raw)
In-Reply-To: <20230911023038.30649-10-yong.wu@mediatek.com>
Il 11/09/23 04:30, Yong Wu ha scritto:
> Create a new mtk_svp_cma heap from the CMA reserved buffer.
>
> When the first allocating buffer, use cma_alloc to prepare whole the
> CMA range, then send its range to TEE to protect and manage.
> For the later allocating, we just adds the cma_used_size.
>
> When SVP done, cma_release will release the buffer, then kernel may
> reuse it.
>
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> ---
> drivers/dma-buf/heaps/Kconfig | 2 +-
> drivers/dma-buf/heaps/mtk_secure_heap.c | 121 +++++++++++++++++++++++-
> 2 files changed, 119 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/dma-buf/heaps/Kconfig b/drivers/dma-buf/heaps/Kconfig
> index 729c0cf3eb7c..e101f788ecbf 100644
> --- a/drivers/dma-buf/heaps/Kconfig
> +++ b/drivers/dma-buf/heaps/Kconfig
> @@ -15,7 +15,7 @@ config DMABUF_HEAPS_CMA
>
> config DMABUF_HEAPS_MTK_SECURE
> bool "DMA-BUF MediaTek Secure Heap"
> - depends on DMABUF_HEAPS && TEE
> + depends on DMABUF_HEAPS && TEE && CMA
> help
> Choose this option to enable dma-buf MediaTek secure heap for Secure
> Video Path. This heap is backed by TEE client interfaces. If in
> diff --git a/drivers/dma-buf/heaps/mtk_secure_heap.c b/drivers/dma-buf/heaps/mtk_secure_heap.c
> index daf6cf2121a1..3f568fe6b569 100644
> --- a/drivers/dma-buf/heaps/mtk_secure_heap.c
> +++ b/drivers/dma-buf/heaps/mtk_secure_heap.c
..snip..
> +}
> +
> +RESERVEDMEM_OF_DECLARE(mtk_secure_cma, "mediatek,secure_cma_chunkmem",
I'd suggest "mediatek,secure-heap" as compatible name.
> + mtk_secure_cma_init);
> +
Regards,
Angelo
next prev parent reply other threads:[~2023-09-11 9:34 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-11 2:30 [PATCH 0/9] dma-buf: heaps: Add MediaTek secure heap Yong Wu
2023-09-11 2:30 ` [PATCH 1/9] dma-buf: heaps: Deduplicate docs and adopt common format Yong Wu
2023-09-11 9:36 ` Christian König
2023-09-11 23:51 ` T.J. Mercier
2023-09-11 2:30 ` [PATCH 2/9] dma-heap: Add proper kref handling on dma-buf heaps Yong Wu
2023-09-11 9:48 ` Christian König
2023-09-22 18:19 ` T.J. Mercier
2023-09-11 2:30 ` [PATCH 3/9] dma-heap: Provide accessors so that in-kernel drivers can allocate dmabufs from specific heaps Yong Wu
2023-09-11 10:13 ` Christian König
2023-09-11 18:29 ` John Stultz
2023-09-12 7:06 ` Christian König
2023-09-12 8:52 ` Yong Wu (吴勇)
2023-09-12 14:46 ` Christian König
2023-09-12 14:58 ` Nicolas Dufresne
2023-09-13 8:30 ` Christian König
2023-09-12 14:50 ` Nicolas Dufresne
2023-09-11 16:12 ` Nicolas Dufresne
2023-09-12 8:47 ` Yong Wu (吴勇)
2023-09-12 15:05 ` Nicolas Dufresne
2023-09-18 10:46 ` Yong Wu (吴勇)
2023-09-11 2:30 ` [PATCH 4/9] dma-buf: heaps: Initialise MediaTek secure heap Yong Wu
2023-09-11 8:05 ` kernel test robot
2023-09-27 14:42 ` Joakim Bech
2023-09-28 8:03 ` Yong Wu (吴勇)
2023-10-19 4:45 ` Vijayanand Jitta
2023-10-20 9:59 ` Yong Wu (吴勇)
2023-10-26 4:48 ` Vijayanand Jitta
2023-10-27 7:47 ` Yong Wu (吴勇)
2023-10-30 8:06 ` Vijayanand Jitta
2023-09-11 2:30 ` [PATCH 5/9] dma-buf: heaps: mtk_sec_heap: Initialise tee session Yong Wu
2023-09-11 9:29 ` AngeloGioacchino Del Regno
2023-09-11 10:15 ` Christian König
2023-09-12 6:17 ` Yong Wu (吴勇)
2023-09-12 9:32 ` AngeloGioacchino Del Regno
2023-09-25 12:49 ` Yong Wu (吴勇)
2023-09-27 13:46 ` Joakim Bech
2023-09-27 15:17 ` Benjamin Gaignard
2023-09-27 18:56 ` Jeffrey Kardatzke
2023-09-28 8:30 ` Benjamin Gaignard
2023-09-28 17:48 ` Jeffrey Kardatzke
2023-09-29 6:54 ` Benjamin Gaignard
2023-10-13 19:09 ` Jeffrey Kardatzke
2023-10-13 19:10 ` Jeffrey Kardatzke
2023-09-27 18:54 ` Jeffrey Kardatzke
2023-09-13 13:35 ` kernel test robot
2023-09-11 2:30 ` [PATCH 6/9] dma-buf: heaps: mtk_sec_heap: Add tee service call for buffer allocating/freeing Yong Wu
2023-09-14 10:18 ` kernel test robot
2023-09-27 14:37 ` Joakim Bech
2023-09-28 5:24 ` Yong Wu (吴勇)
2023-10-19 4:45 ` Vijayanand Jitta
2023-10-20 10:01 ` Yong Wu (吴勇)
2023-09-11 2:30 ` [PATCH 7/9] dma-buf: heaps: mtk_sec_heap: Add dma_ops Yong Wu
2023-09-11 2:30 ` [PATCH 8/9] dt-bindings: reserved-memory: MediaTek: Add reserved memory for SVP Yong Wu
2023-09-11 15:44 ` Rob Herring
2023-09-12 6:16 ` Yong Wu (吴勇)
2023-09-12 8:28 ` Krzysztof Kozlowski
2023-09-12 10:13 ` Robin Murphy
2023-09-12 15:53 ` Rob Herring
2023-09-12 16:05 ` Robin Murphy
2023-09-18 10:47 ` Yong Wu (吴勇)
2023-09-19 22:15 ` Jeffrey Kardatzke
2023-10-12 6:54 ` Yong Wu (吴勇)
2023-10-12 7:07 ` Krzysztof Kozlowski
2023-10-12 11:15 ` Yong Wu (吴勇)
2023-10-19 4:46 ` Vijayanand Jitta
2023-10-20 9:50 ` Yong Wu (吴勇)
2023-11-01 5:50 ` Jaskaran Singh
2023-11-06 5:56 ` Yong Wu (吴勇)
2023-11-20 8:20 ` Jaskaran Singh
2023-09-11 2:30 ` [PATCH 9/9] dma_buf: heaps: mtk_sec_heap: Add a new CMA heap Yong Wu
2023-09-11 9:33 ` AngeloGioacchino Del Regno [this message]
2023-10-19 4:44 ` [PATCH 0/9] dma-buf: heaps: Add MediaTek secure heap Vijayanand Jitta
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