linux-kernel - [PATCH] drm/gpuvm: Dual-licence the drm

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Message-ID: <20231010142725.8920-1-thomas.hellstrom@linux.intel.com>
Date:   Tue, 10 Oct 2023 16:27:24 +0200
From:   Thomas Hellström 
        <thomas.hellstrom@...ux.intel.com>
To:     intel-xe@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org
Cc:     Thomas Hellström 
        <thomas.hellstrom@...ux.intel.com>,
        Danilo Krummrich <dakr@...hat.com>, airlied@...il.com,
        daniel@...ll.ch, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/gpuvm: Dual-licence the drm_gpuvm code GPL-2.0 OR MIT

Dual-licence in order to make it possible for other non-GPL os'es
to re-implement the code. The use of EXPORT_SYMBOL_GPL() is intentionally
left untouched to prevent use of drm_gpuvm as a proxy for non-GPL drivers
to access GPL-only kernel symbols.

Much of the ideas and algorithms used in the drm_gpuvm code is already
present in one way or another in MIT-licensed code.

Cc: Danilo Krummrich <dakr@...hat.com>
Cc: airlied@...il.com
Cc: daniel@...ll.ch
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Thomas Hellström <thomas.hellstrom@...ux.intel.com>
---
 drivers/gpu/drm/drm_gpuvm.c | 2 +-
 include/drm/drm_gpuvm.h     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_gpuvm.c b/drivers/gpu/drm/drm_gpuvm.c
index 02ce6baacdad..08c088319652 100644
--- a/drivers/gpu/drm/drm_gpuvm.c
+++ b/drivers/gpu/drm/drm_gpuvm.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-License-Identifier: GPL-2.0 OR MIT
 /*
  * Copyright (c) 2022 Red Hat.
  *
diff --git a/include/drm/drm_gpuvm.h b/include/drm/drm_gpuvm.h
index 361fea5cb849..21bbf11415b3 100644
--- a/include/drm/drm_gpuvm.h
+++ b/include/drm/drm_gpuvm.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
 
 #ifndef __DRM_GPUVM_H__
 #define __DRM_GPUVM_H__
-- 
2.41.0