1 /* $NetBSD: virtgpu_prime.c,v 1.2 2018/08/27 04:58:37 riastradh Exp $ */ 2 3 /* 4 * Copyright 2014 Canonical 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 shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Andreas Pokorny 25 */ 26 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: virtgpu_prime.c,v 1.2 2018/08/27 04:58:37 riastradh Exp $"); 29 30 #include "virtgpu_drv.h" 31 32 /* Empty Implementations as there should not be any other driver for a virtual 33 * device that might share buffers with virtgpu */ 34 35 int virtgpu_gem_prime_pin(struct drm_gem_object *obj) 36 { 37 WARN_ONCE(1, "not implemented"); 38 return -ENODEV; 39 } 40 41 void virtgpu_gem_prime_unpin(struct drm_gem_object *obj) 42 { 43 WARN_ONCE(1, "not implemented"); 44 } 45 46 47 struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj) 48 { 49 WARN_ONCE(1, "not implemented"); 50 return ERR_PTR(-ENODEV); 51 } 52 53 struct drm_gem_object *virtgpu_gem_prime_import_sg_table( 54 struct drm_device *dev, struct dma_buf_attachment *attach, 55 struct sg_table *table) 56 { 57 WARN_ONCE(1, "not implemented"); 58 return ERR_PTR(-ENODEV); 59 } 60 61 void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj) 62 { 63 WARN_ONCE(1, "not implemented"); 64 return ERR_PTR(-ENODEV); 65 } 66 67 void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) 68 { 69 WARN_ONCE(1, "not implemented"); 70 } 71 72 int virtgpu_gem_prime_mmap(struct drm_gem_object *obj, 73 struct vm_area_struct *area) 74 { 75 return -ENODEV; 76 } 77