intel_fb.c revision 296548
1/* 2 * Copyright �� 2007 David Airlie 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 * 23 * Authors: 24 * David Airlie 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: head/sys/dev/drm2/i915/intel_fb.c 296548 2016-03-08 20:33:02Z dumbbell $"); 29 30#include "opt_syscons.h" 31#include <dev/drm2/drmP.h> 32#include <dev/drm2/drm_crtc.h> 33#include <dev/drm2/drm_fb_helper.h> 34#include <dev/drm2/i915/intel_drv.h> 35#include <dev/drm2/i915/i915_drm.h> 36#include <dev/drm2/i915/i915_drv.h> 37 38#if defined(__linux__) 39static struct fb_ops intelfb_ops = { 40 .owner = THIS_MODULE, 41 .fb_check_var = drm_fb_helper_check_var, 42 .fb_set_par = drm_fb_helper_set_par, 43 .fb_fillrect = cfb_fillrect, 44 .fb_copyarea = cfb_copyarea, 45 .fb_imageblit = cfb_imageblit, 46 .fb_pan_display = drm_fb_helper_pan_display, 47 .fb_blank = drm_fb_helper_blank, 48 .fb_setcmap = drm_fb_helper_setcmap, 49 .fb_debug_enter = drm_fb_helper_debug_enter, 50 .fb_debug_leave = drm_fb_helper_debug_leave, 51}; 52#endif 53 54static int intelfb_create(struct intel_fbdev *ifbdev, 55 struct drm_fb_helper_surface_size *sizes) 56{ 57 struct drm_device *dev = ifbdev->helper.dev; 58 struct drm_i915_private *dev_priv = dev->dev_private; 59 struct fb_info *info; 60 struct drm_framebuffer *fb; 61 struct drm_mode_fb_cmd2 mode_cmd = {}; 62 struct drm_i915_gem_object *obj; 63 int size, ret; 64 65 /* we don't do packed 24bpp */ 66 if (sizes->surface_bpp == 24) 67 sizes->surface_bpp = 32; 68 69 mode_cmd.width = sizes->surface_width; 70 mode_cmd.height = sizes->surface_height; 71 72 mode_cmd.pitches[0] = roundup2(mode_cmd.width * ((sizes->surface_bpp + 7) / 73 8), 64); 74 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, 75 sizes->surface_depth); 76 77 size = mode_cmd.pitches[0] * mode_cmd.height; 78 size = roundup2(size, PAGE_SIZE); 79 obj = i915_gem_alloc_object(dev, size); 80 if (!obj) { 81 DRM_ERROR("failed to allocate framebuffer\n"); 82 ret = -ENOMEM; 83 goto out; 84 } 85 86 DRM_LOCK(dev); 87 88 /* Flush everything out, we'll be doing GTT only from now on */ 89 ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); 90 if (ret) { 91 DRM_ERROR("failed to pin fb: %d\n", ret); 92 goto out_unref; 93 } 94 95 info = framebuffer_alloc(); 96 if (!info) { 97 ret = -ENOMEM; 98 goto out_unpin; 99 } 100 101 info->fb_size = size; 102 info->fb_bpp = sizes->surface_bpp; 103 info->fb_pbase = dev_priv->mm.gtt_base_addr + obj->gtt_offset; 104 info->fb_vbase = (vm_offset_t)pmap_mapdev_attr(info->fb_pbase, size, 105 PAT_WRITE_COMBINING); 106 107 ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); 108 if (ret) 109 goto out_unpin; 110 111 fb = &ifbdev->ifb.base; 112 113 ifbdev->helper.fb = fb; 114 ifbdev->helper.fbdev = info; 115 116 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); 117 drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); 118 119 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ 120 121 DRM_DEBUG_KMS("allocated %dx%d (s %dbits) fb: 0x%08x, bo %p\n", 122 fb->width, fb->height, fb->depth, 123 obj->gtt_offset, obj); 124 125 126 DRM_UNLOCK(dev); 127#ifdef __linux__ 128 vga_switcheroo_client_fb_set(dev->pdev, info); 129#endif 130 return 0; 131 132out_unpin: 133 i915_gem_object_unpin(obj); 134out_unref: 135 drm_gem_object_unreference(&obj->base); 136 DRM_UNLOCK(dev); 137out: 138 return ret; 139} 140 141static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, 142 struct drm_fb_helper_surface_size *sizes) 143{ 144 struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; 145 int new_fb = 0; 146 int ret; 147 148 if (!helper->fb) { 149 ret = intelfb_create(ifbdev, sizes); 150 if (ret) 151 return ret; 152 new_fb = 1; 153 } 154 return new_fb; 155} 156 157static struct drm_fb_helper_funcs intel_fb_helper_funcs = { 158 .gamma_set = intel_crtc_fb_gamma_set, 159 .gamma_get = intel_crtc_fb_gamma_get, 160 .fb_probe = intel_fb_find_or_create_single, 161}; 162 163static void intel_fbdev_destroy(struct drm_device *dev, 164 struct intel_fbdev *ifbdev) 165{ 166 struct fb_info *info; 167 struct intel_framebuffer *ifb = &ifbdev->ifb; 168 169 if (ifbdev->helper.fbdev) { 170 info = ifbdev->helper.fbdev; 171 if (info->fb_fbd_dev != NULL) 172 device_delete_child(dev->dev, info->fb_fbd_dev); 173 framebuffer_release(info); 174 } 175 176 drm_fb_helper_fini(&ifbdev->helper); 177 178 drm_framebuffer_cleanup(&ifb->base); 179 if (ifb->obj) { 180 drm_gem_object_unreference_unlocked(&ifb->obj->base); 181 ifb->obj = NULL; 182 } 183} 184 185#ifdef DEV_SC 186extern int sc_txtmouse_no_retrace_wait; 187#endif 188 189int intel_fbdev_init(struct drm_device *dev) 190{ 191 struct intel_fbdev *ifbdev; 192 drm_i915_private_t *dev_priv = dev->dev_private; 193 int ret; 194 195 ifbdev = malloc(sizeof(struct intel_fbdev), DRM_MEM_KMS, M_WAITOK | M_ZERO); 196 if (!ifbdev) 197 return -ENOMEM; 198 199 dev_priv->fbdev = ifbdev; 200 ifbdev->helper.funcs = &intel_fb_helper_funcs; 201 202 ret = drm_fb_helper_init(dev, &ifbdev->helper, 203 dev_priv->num_pipe, 204 INTELFB_CONN_LIMIT); 205 if (ret) { 206 free(ifbdev, DRM_MEM_KMS); 207 return ret; 208 } 209 210 drm_fb_helper_single_add_all_connectors(&ifbdev->helper); 211 drm_fb_helper_initial_config(&ifbdev->helper, 32); 212#ifdef DEV_SC 213 sc_txtmouse_no_retrace_wait = 1; 214#endif 215 return 0; 216} 217 218void intel_fbdev_fini(struct drm_device *dev) 219{ 220 drm_i915_private_t *dev_priv = dev->dev_private; 221 if (!dev_priv->fbdev) 222 return; 223 224 intel_fbdev_destroy(dev, dev_priv->fbdev); 225 free(dev_priv->fbdev, DRM_MEM_KMS); 226 dev_priv->fbdev = NULL; 227} 228 229void intel_fbdev_set_suspend(struct drm_device *dev, int state) 230{ 231 drm_i915_private_t *dev_priv = dev->dev_private; 232 if (!dev_priv->fbdev) 233 return; 234 235#ifdef FREEBSD_WIP 236 fb_set_suspend(dev_priv->fbdev->helper.fbdev, state); 237#endif /* FREEBSD_WIP */ 238} 239 240MODULE_LICENSE("GPL and additional rights"); 241 242void intel_fb_output_poll_changed(struct drm_device *dev) 243{ 244 drm_i915_private_t *dev_priv = dev->dev_private; 245 drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); 246} 247 248void intel_fb_restore_mode(struct drm_device *dev) 249{ 250 int ret; 251 drm_i915_private_t *dev_priv = dev->dev_private; 252 struct drm_mode_config *config = &dev->mode_config; 253 struct drm_plane *plane; 254 255 sx_xlock(&dev->mode_config.mutex); 256 257 ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper); 258 if (ret) 259 DRM_DEBUG("failed to restore crtc mode\n"); 260 261 /* Be sure to shut off any planes that may be active */ 262 list_for_each_entry(plane, &config->plane_list, head) 263 plane->funcs->disable_plane(plane); 264 265 sx_xunlock(&dev->mode_config.mutex); 266} 267