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dmabuf.h revision 1.1.1.1 
      1 /*	$NetBSD: dmabuf.h,v 1.1.1.1 2021/12/18 20:15:34 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright(c) 2017 Intel Corporation. All rights reserved.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice (including the next
     14  * paragraph) shall be included in all copies or substantial portions of the
     15  * Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     23  * SOFTWARE.
     24  *
     25  * Authors:
     26  *    Zhiyuan Lv <zhiyuan.lv (at) intel.com>
     27  *
     28  * Contributors:
     29  *    Xiaoguang Chen
     30  *    Tina Zhang <tina.zhang (at) intel.com>
     31  */
     32 
     33 #ifndef _GVT_DMABUF_H_
     34 #define _GVT_DMABUF_H_
     35 #include <linux/vfio.h>
     36 
     37 struct intel_vgpu_fb_info {
     38 	__u64 start;
     39 	__u64 start_gpa;
     40 	__u64 drm_format_mod;
     41 	__u32 drm_format;	/* drm format of plane */
     42 	__u32 width;	/* width of plane */
     43 	__u32 height;	/* height of plane */
     44 	__u32 stride;	/* stride of plane */
     45 	__u32 size;	/* size of plane in bytes, align on page */
     46 	__u32 x_pos;	/* horizontal position of cursor plane */
     47 	__u32 y_pos;	/* vertical position of cursor plane */
     48 	__u32 x_hot;    /* horizontal position of cursor hotspot */
     49 	__u32 y_hot;    /* vertical position of cursor hotspot */
     50 	struct intel_vgpu_dmabuf_obj *obj;
     51 };
     52 
     53 /**
     54  * struct intel_vgpu_dmabuf_obj- Intel vGPU device buffer object
     55  */
     56 struct intel_vgpu_dmabuf_obj {
     57 	struct intel_vgpu *vgpu;
     58 	struct intel_vgpu_fb_info *info;
     59 	__u32 dmabuf_id;
     60 	struct kref kref;
     61 	bool initref;
     62 	struct list_head list;
     63 };
     64 
     65 int intel_vgpu_query_plane(struct intel_vgpu *vgpu, void *args);
     66 int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id);
     67 void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu);
     68 
     69 #endif
     70