From: Sumit Garg <sumit.garg@kernel.org>
To: "Jens Wiklander" <jens.wiklander@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Sumit Semwal" <sumit.semwal@linaro.org>
Cc: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
op-tee@lists.trustedfirmware.org,
linux-arm-kernel@lists.infradead.org,
Olivier Masse <olivier.masse@nxp.com>,
Thierry Reding <thierry.reding@gmail.com>,
Yong Wu <yong.wu@mediatek.com>,
Benjamin Gaignard <benjamin.gaignard@collabora.com>,
Brian Starkey <Brian.Starkey@arm.com>,
John Stultz <jstultz@google.com>,
"T . J . Mercier" <tjmercier@google.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
azarrabi@qti.qualcomm.com, Simona Vetter <simona.vetter@ffwll.ch>,
Daniel Stone <daniel@fooishbar.org>,
Rouven Czerwinski <rouven.czerwinski@linaro.org>,
robin.murphy@arm.com, Sumit Garg <sumit.garg@oss.qualcomm.com>
Subject: Re: [PATCH v11 2/9] dma-buf: dma-heap: export declared functions
Date: Thu, 14 Aug 2025 11:42:50 +0530 [thread overview]
Message-ID: <aJ1-YpgvGt4_6CFU@sumit-X1> (raw)
In-Reply-To: <20250813060339.2977604-3-jens.wiklander@linaro.org>
On Wed, Aug 13, 2025 at 08:02:51AM +0200, Jens Wiklander wrote:
> Export the dma-buf heap functions to allow them to be used by the OP-TEE
> driver. The OP-TEE driver wants to register and manage specific secure
> DMA heaps with it.
>
> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
> Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
> ---
> drivers/dma-buf/dma-heap.c | 3 +++
> 1 file changed, 3 insertions(+)
>
Can we get an ack from DMAbuf maintainers here? With that we should be
able to queue this patch-set for linux-next targetting the 6.18 merge
window.
-Sumit
> diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
> index 3cbe87d4a464..cdddf0e24dce 100644
> --- a/drivers/dma-buf/dma-heap.c
> +++ b/drivers/dma-buf/dma-heap.c
> @@ -202,6 +202,7 @@ void *dma_heap_get_drvdata(struct dma_heap *heap)
> {
> return heap->priv;
> }
> +EXPORT_SYMBOL(dma_heap_get_drvdata);
>
> /**
> * dma_heap_get_name - get heap name
> @@ -214,6 +215,7 @@ const char *dma_heap_get_name(struct dma_heap *heap)
> {
> return heap->name;
> }
> +EXPORT_SYMBOL(dma_heap_get_name);
>
> /**
> * dma_heap_add - adds a heap to dmabuf heaps
> @@ -303,6 +305,7 @@ struct dma_heap *dma_heap_add(const struct dma_heap_export_info *exp_info)
> kfree(heap);
> return err_ret;
> }
> +EXPORT_SYMBOL(dma_heap_add);
>
> static char *dma_heap_devnode(const struct device *dev, umode_t *mode)
> {
> --
> 2.43.0
>
WARNING: multiple messages have this Message-ID (diff)
From: Sumit Garg via OP-TEE <op-tee@lists.trustedfirmware.org>
To: "Jens Wiklander" <jens.wiklander@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Sumit Semwal" <sumit.semwal@linaro.org>
Cc: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
op-tee@lists.trustedfirmware.org,
linux-arm-kernel@lists.infradead.org,
Olivier Masse <olivier.masse@nxp.com>,
Thierry Reding <thierry.reding@gmail.com>,
Yong Wu <yong.wu@mediatek.com>,
Benjamin Gaignard <benjamin.gaignard@collabora.com>,
Brian Starkey <Brian.Starkey@arm.com>,
John Stultz <jstultz@google.com>,
"T . J . Mercier" <tjmercier@google.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
azarrabi@qti.qualcomm.com, Simona Vetter <simona.vetter@ffwll.ch>,
Daniel Stone <daniel@fooishbar.org>,
Rouven Czerwinski <rouven.czerwinski@linaro.org>,
robin.murphy@arm.com, Sumit Garg <sumit.garg@oss.qualcomm.com>
Subject: Re: [PATCH v11 2/9] dma-buf: dma-heap: export declared functions
Date: Thu, 14 Aug 2025 11:42:50 +0530 [thread overview]
Message-ID: <aJ1-YpgvGt4_6CFU@sumit-X1> (raw)
In-Reply-To: <20250813060339.2977604-3-jens.wiklander@linaro.org>
On Wed, Aug 13, 2025 at 08:02:51AM +0200, Jens Wiklander wrote:
> Export the dma-buf heap functions to allow them to be used by the OP-TEE
> driver. The OP-TEE driver wants to register and manage specific secure
> DMA heaps with it.
>
> Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
> Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
> ---
> drivers/dma-buf/dma-heap.c | 3 +++
> 1 file changed, 3 insertions(+)
>
Can we get an ack from DMAbuf maintainers here? With that we should be
able to queue this patch-set for linux-next targetting the 6.18 merge
window.
-Sumit
> diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c
> index 3cbe87d4a464..cdddf0e24dce 100644
> --- a/drivers/dma-buf/dma-heap.c
> +++ b/drivers/dma-buf/dma-heap.c
> @@ -202,6 +202,7 @@ void *dma_heap_get_drvdata(struct dma_heap *heap)
> {
> return heap->priv;
> }
> +EXPORT_SYMBOL(dma_heap_get_drvdata);
>
> /**
> * dma_heap_get_name - get heap name
> @@ -214,6 +215,7 @@ const char *dma_heap_get_name(struct dma_heap *heap)
> {
> return heap->name;
> }
> +EXPORT_SYMBOL(dma_heap_get_name);
>
> /**
> * dma_heap_add - adds a heap to dmabuf heaps
> @@ -303,6 +305,7 @@ struct dma_heap *dma_heap_add(const struct dma_heap_export_info *exp_info)
> kfree(heap);
> return err_ret;
> }
> +EXPORT_SYMBOL(dma_heap_add);
>
> static char *dma_heap_devnode(const struct device *dev, umode_t *mode)
> {
> --
> 2.43.0
>
next prev parent reply other threads:[~2025-08-14 6:15 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-13 6:02 [PATCH v11 0/9] TEE subsystem for protected dma-buf allocations Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-08-13 6:02 ` [PATCH v11 1/9] optee: sync secure world ABI headers Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-08-13 6:02 ` [PATCH v11 2/9] dma-buf: dma-heap: export declared functions Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-08-14 6:12 ` Sumit Garg [this message]
2025-08-14 6:12 ` Sumit Garg via OP-TEE
2025-08-14 23:30 ` T.J. Mercier
2025-08-14 23:30 ` T.J. Mercier via OP-TEE
2025-09-11 7:15 ` Sumit Semwal
2025-09-11 7:15 ` Sumit Semwal
2025-09-11 7:50 ` Jens Wiklander
2025-09-11 8:00 ` Sumit Semwal
2025-09-11 8:34 ` Jens Wiklander
2025-08-13 6:02 ` [PATCH v11 3/9] tee: implement protected DMA-heap Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-08-13 6:02 ` [PATCH v11 4/9] tee: refactor params_from_user() Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-08-13 6:02 ` [PATCH v11 5/9] tee: new ioctl to a register tee_shm from a dmabuf file descriptor Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-08-14 6:02 ` Sumit Garg
2025-08-14 6:02 ` Sumit Garg via OP-TEE
2025-08-13 6:02 ` [PATCH v11 6/9] tee: add tee_shm_alloc_dma_mem() Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-08-14 6:04 ` Sumit Garg
2025-08-14 6:04 ` Sumit Garg via OP-TEE
2025-08-13 6:02 ` [PATCH v11 7/9] optee: support protected memory allocation Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-08-13 6:02 ` [PATCH v11 8/9] optee: FF-A: dynamic " Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-08-13 6:02 ` [PATCH v11 9/9] optee: smc abi: " Jens Wiklander
2025-08-13 6:02 ` Jens Wiklander
2025-09-01 6:33 ` [PATCH v11 0/9] TEE subsystem for protected dma-buf allocations Jens Wiklander
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