linux-kernel - [RFC PATCH 4/6] drm/i915: export i915 dmabuf

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Date:   Fri, 28 Apr 2017 17:35:28 +0800
From:   Xiaoguang Chen <xiaoguang.chen@...el.com>
To:     kraxel@...hat.com, alex.williamson@...hat.com,
        intel-gfx@...ts.freedesktop.org,
        intel-gvt-dev@...ts.freedesktop.org, zhi.a.wang@...el.com,
        zhenyuw@...ux.intel.com, linux-kernel@...r.kernel.org,
        zhiyuan.lv@...el.com, kevin.tian@...el.com
Cc:     Xiaoguang Chen <xiaoguang.chen@...el.com>
Subject: [RFC PATCH 4/6] drm/i915: export i915 dmabuf_ops

GVT-g will use i915's dmabuf_ops to implement its own dmabuf so
exporting it.

Signed-off-by: Xiaoguang Chen <xiaoguang.chen@...el.com>
---
 drivers/gpu/drm/i915/i915_drv.h        | 2 ++
 drivers/gpu/drm/i915/i915_gem_dmabuf.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index bb6fc1e..470d461 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3476,6 +3476,8 @@ struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
 struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
 				struct drm_gem_object *gem_obj, int flags);
 
+extern const struct dma_buf_ops i915_dmabuf_ops;
+
 static inline struct i915_hw_ppgtt *
 i915_vm_to_ppgtt(struct i915_address_space *vm)
 {
diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
index 11898cd..4dafc99 100644
--- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
@@ -196,7 +196,7 @@ static int i915_gem_end_cpu_access(struct dma_buf *dma_buf, enum dma_data_direct
 	return err;
 }
 
-static const struct dma_buf_ops i915_dmabuf_ops =  {
+const struct dma_buf_ops i915_dmabuf_ops =  {
 	.map_dma_buf = i915_gem_map_dma_buf,
 	.unmap_dma_buf = i915_gem_unmap_dma_buf,
 	.release = drm_gem_dmabuf_release,
-- 
1.9.1