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From: "Maxime Ripard" <mripard@kernel.org>
To: "Thomas Zimmermann" <tzimmermann@suse.de>
Cc: admin@kodeit.net, airlied@gmail.com, airlied@redhat.com,
	christian.koenig@amd.com, dri-devel@lists.freedesktop.org,
	gargaditya08@live.com, hdegoede@redhat.com,
	jani.nikula@intel.com, javierm@redhat.com,
	maarten.lankhorst@linux.intel.com, mripard@kernel.org,
	sean@poorly.run, simona@ffwll.ch, sumit.semwal@linaro.org,
	"Maxime Ripard" <mripard@kernel.org>
Subject: Re: [PATCH v2 1/5] drm/prime: Support dedicated DMA device for dma-buf imports
Date: Fri, 07 Mar 2025 13:03:04 +0000	[thread overview]
Message-ID: <27c8aaa39d53c4af0328442662f966be@kernel.org> (raw)
In-Reply-To: <20250307080836.42848-2-tzimmermann@suse.de>

On Fri, 7 Mar 2025 09:03:59 +0100, Thomas Zimmermann wrote:
> Importing dma-bufs via PRIME requires a DMA-capable device. Devices on
> peripheral busses, such as USB, often cannot perform DMA by themselves.
> Without DMA-capable device PRIME import fails. DRM drivers for USB
> devices already use a separate DMA device for dma-buf imports. Make the
> mechanism generally available.
> 
> [ ... ]

Reviewed-by: Maxime Ripard <mripard@kernel.org>

Thanks!
Maxime

  parent reply	other threads:[~2025-03-07 13:03 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-07  8:03 [PATCH v2 0/5] drm: Provide a dedicated DMA device for PRIME import Thomas Zimmermann
2025-03-07  8:03 ` [PATCH v2 1/5] drm/prime: Support dedicated DMA device for dma-buf imports Thomas Zimmermann
2025-03-07 12:45   ` Jani Nikula
2025-03-07 13:03   ` Maxime Ripard [this message]
2025-03-07  8:04 ` [PATCH v2 2/5] drm/appletbdrm: Set struct drm_device.dma_dev Thomas Zimmermann
2025-03-07 11:14   ` Aditya Garg
2025-03-07  8:04 ` [PATCH v2 3/5] drm/gm12u320: " Thomas Zimmermann
2025-03-07  8:04 ` [PATCH v2 4/5] drm/gud: " Thomas Zimmermann
2025-03-07  8:04 ` [PATCH v2 5/5] drm/udl: " Thomas Zimmermann
2025-03-07 12:50 ` [PATCH v2 0/5] drm: Provide a dedicated DMA device for PRIME import Jani Nikula
2025-03-07 13:32 ` Simona Vetter
2025-03-10  9:50   ` Thomas Zimmermann
2025-03-10 10:04     ` Thomas Zimmermann
2025-03-10 13:56     ` Christian König
2025-03-10 14:30       ` Thomas Zimmermann

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