1/* 2 * Copyright (C) 2008 Maarten Maathuis. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 */ 26 27#include "drmP.h" 28#include "drm_crtc_helper.h" 29#include "nouveau_drv.h" 30#include "nouveau_fb.h" 31#include "nouveau_fbcon.h" 32 33static void 34nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb) 35{ 36 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); 37 38 if (fb->nvbo) 39 drm_gem_object_unreference_unlocked(fb->nvbo->gem); 40 41 drm_framebuffer_cleanup(drm_fb); 42 kfree(fb); 43} 44 45static int 46nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb, 47 struct drm_file *file_priv, 48 unsigned int *handle) 49{ 50 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); 51 52 return drm_gem_handle_create(file_priv, fb->nvbo->gem, handle); 53} 54 55static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = { 56 .destroy = nouveau_user_framebuffer_destroy, 57 .create_handle = nouveau_user_framebuffer_create_handle, 58}; 59 60int 61nouveau_framebuffer_init(struct drm_device *dev, struct nouveau_framebuffer *nouveau_fb, 62 struct drm_mode_fb_cmd *mode_cmd, struct nouveau_bo *nvbo) 63{ 64 int ret; 65 66 ret = drm_framebuffer_init(dev, &nouveau_fb->base, &nouveau_framebuffer_funcs); 67 if (ret) { 68 return ret; 69 } 70 71 drm_helper_mode_fill_fb_struct(&nouveau_fb->base, mode_cmd); 72 nouveau_fb->nvbo = nvbo; 73 return 0; 74} 75 76static struct drm_framebuffer * 77nouveau_user_framebuffer_create(struct drm_device *dev, 78 struct drm_file *file_priv, 79 struct drm_mode_fb_cmd *mode_cmd) 80{ 81 struct nouveau_framebuffer *nouveau_fb; 82 struct drm_gem_object *gem; 83 int ret; 84 85 gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle); 86 if (!gem) 87 return ERR_PTR(-ENOENT); 88 89 nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL); 90 if (!nouveau_fb) 91 return ERR_PTR(-ENOMEM); 92 93 ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem)); 94 if (ret) { 95 drm_gem_object_unreference(gem); 96 return ERR_PTR(ret); 97 } 98 99 return &nouveau_fb->base; 100} 101 102const struct drm_mode_config_funcs nouveau_mode_config_funcs = { 103 .fb_create = nouveau_user_framebuffer_create, 104 .output_poll_changed = nouveau_fbcon_output_poll_changed, 105}; 106