linux-kernel - Re: [PATCH drm-misc-next v4 7/8] drm/gpuvm: generalize dma

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Message-ID: <20230922134548.7ede67c0@collabora.com>
Date:   Fri, 22 Sep 2023 13:45:48 +0200
From:   Boris Brezillon <boris.brezillon@...labora.com>
To:     Danilo Krummrich <dakr@...hat.com>
Cc:     airlied@...il.com, daniel@...ll.ch, matthew.brost@...el.com,
        thomas.hellstrom@...ux.intel.com, sarah.walker@...tec.com,
        donald.robson@...tec.com, christian.koenig@....com,
        faith.ekstrand@...labora.com, dri-devel@...ts.freedesktop.org,
        nouveau@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH drm-misc-next v4 7/8] drm/gpuvm: generalize
 dma_resv/extobj handling and GEM validation

On Wed, 20 Sep 2023 16:42:40 +0200
Danilo Krummrich <dakr@...hat.com> wrote:

> +	/**
> +	 * @DRM_GPUVM_RESV_PROTECTED: GPUVM is protected externally by the
> +	 * GPUVM's &dma_resv lock

I think we need to be more specific, and list the fields/operations
that need to be externally protected when DRM_GPUVM_RESV_PROTECTED is
set.

> +	 */
> +	DRM_GPUVM_RESV_PROTECTED = (1 << 0),