intel_fb.c revision 259016
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 259016 2013-12-05 22:38:53Z ray $"); 29 30#include <dev/drm2/drmP.h> 31#include <dev/drm2/drm.h> 32#include <dev/drm2/drm_crtc.h> 33#include <dev/drm2/drm_fb_helper.h> 34#include <dev/drm2/i915/i915_drm.h> 35#include <dev/drm2/i915/i915_drv.h> 36#include <dev/drm2/i915/intel_drv.h> 37 38static int intelfb_create(struct intel_fbdev *ifbdev, 39 struct drm_fb_helper_surface_size *sizes) 40{ 41 struct drm_device *dev = ifbdev->helper.dev; 42#if 0 43 struct drm_i915_private *dev_priv = dev->dev_private; 44#endif 45 struct fb_info *info; 46 struct drm_framebuffer *fb; 47 struct drm_mode_fb_cmd2 mode_cmd; 48 struct drm_i915_gem_object *obj; 49 int size, ret; 50 51 /* we don't do packed 24bpp */ 52 if (sizes->surface_bpp == 24) 53 sizes->surface_bpp = 32; 54 55 mode_cmd.width = sizes->surface_width; 56 mode_cmd.height = sizes->surface_height; 57 58 mode_cmd.pitches[0] = roundup2(mode_cmd.width * ((sizes->surface_bpp + 7) / 59 8), 64); 60 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, 61 sizes->surface_depth); 62 63 size = mode_cmd.pitches[0] * mode_cmd.height; 64 size = roundup2(size, PAGE_SIZE); 65 obj = i915_gem_alloc_object(dev, size); 66 if (!obj) { 67 DRM_ERROR("failed to allocate framebuffer\n"); 68 ret = -ENOMEM; 69 goto out; 70 } 71 72 DRM_LOCK(dev); 73 74 /* Flush everything out, we'll be doing GTT only from now on */ 75 ret = intel_pin_and_fence_fb_obj(dev, obj, false); 76 if (ret) { 77 DRM_ERROR("failed to pin fb: %d\n", ret); 78 goto out_unref; 79 } 80 81#if 0 82 info = framebuffer_alloc(0, device); 83 if (!info) { 84 ret = -ENOMEM; 85 goto out_unpin; 86 } 87 88 info->par = ifbdev; 89#else 90 info = malloc(sizeof(struct fb_info), DRM_MEM_KMS, M_WAITOK | M_ZERO); 91 info->fb_size = size; 92 info->fb_bpp = sizes->surface_bpp; 93 info->fb_width = sizes->fb_width; 94 info->fb_height = sizes->fb_height; 95 info->fb_pbase = dev->agp->base + obj->gtt_offset; 96 info->fb_vbase = (vm_offset_t)pmap_mapdev_attr(info->fb_pbase, size, 97 PAT_WRITE_COMBINING); 98 99#endif 100 101 ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); 102 if (ret) 103 goto out_unpin; 104 105 fb = &ifbdev->ifb.base; 106 107 ifbdev->helper.fb = fb; 108 ifbdev->helper.fbdev = info; 109#if 0 110 111 strcpy(info->fix.id, "inteldrmfb"); 112 113 info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; 114 info->fbops = &intelfb_ops; 115 116 ret = fb_alloc_cmap(&info->cmap, 256, 0); 117 if (ret) { 118 ret = -ENOMEM; 119 goto out_unpin; 120 } 121 /* setup aperture base/size for vesafb takeover */ 122 info->apertures = alloc_apertures(1); 123 if (!info->apertures) { 124 ret = -ENOMEM; 125 goto out_unpin; 126 } 127 info->apertures->ranges[0].base = dev->mode_config.fb_base; 128 info->apertures->ranges[0].size = 129 dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; 130 131 info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset; 132 info->fix.smem_len = size; 133 134 info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size); 135 if (!info->screen_base) { 136 ret = -ENOSPC; 137 goto out_unpin; 138 } 139 info->screen_size = size; 140 141// memset(info->screen_base, 0, size); 142 143 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); 144 drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); 145 146 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ 147#endif 148 DRM_DEBUG_KMS("allocated %dx%d (s %dbits) fb: 0x%08x, bo %p\n", 149 fb->width, fb->height, fb->depth, 150 obj->gtt_offset, obj); 151 152 DRM_UNLOCK(dev); 153#if 1 154 KIB_NOTYET(); 155#else 156 vga_switcheroo_client_fb_set(dev->pdev, info); 157#endif 158 return 0; 159 160out_unpin: 161 i915_gem_object_unpin(obj); 162out_unref: 163 drm_gem_object_unreference(&obj->base); 164 DRM_UNLOCK(dev); 165out: 166 return ret; 167} 168 169static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, 170 struct drm_fb_helper_surface_size *sizes) 171{ 172 struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; 173 int new_fb = 0; 174 int ret; 175 176 if (!helper->fb) { 177 ret = intelfb_create(ifbdev, sizes); 178 if (ret) 179 return ret; 180 new_fb = 1; 181 } 182 return new_fb; 183} 184 185static struct drm_fb_helper_funcs intel_fb_helper_funcs = { 186 .gamma_set = intel_crtc_fb_gamma_set, 187 .gamma_get = intel_crtc_fb_gamma_get, 188 .fb_probe = intel_fb_find_or_create_single, 189}; 190 191static void intel_fbdev_destroy(struct drm_device *dev, 192 struct intel_fbdev *ifbdev) 193{ 194#if 0 195 struct fb_info *info; 196#endif 197 struct intel_framebuffer *ifb = &ifbdev->ifb; 198 199#if 0 200 if (ifbdev->helper.fbdev) { 201 info = ifbdev->helper.fbdev; 202 unregister_framebuffer(info); 203 iounmap(info->screen_base); 204 if (info->cmap.len) 205 fb_dealloc_cmap(&info->cmap); 206 framebuffer_release(info); 207 } 208#endif 209 210 drm_fb_helper_fini(&ifbdev->helper); 211 212 drm_framebuffer_cleanup(&ifb->base); 213 if (ifb->obj) { 214 drm_gem_object_unreference_unlocked(&ifb->obj->base); 215 ifb->obj = NULL; 216 } 217} 218 219extern int sc_txtmouse_no_retrace_wait; 220 221int intel_fbdev_init(struct drm_device *dev) 222{ 223 struct intel_fbdev *ifbdev; 224 drm_i915_private_t *dev_priv = dev->dev_private; 225 int ret; 226 227 ifbdev = malloc(sizeof(struct intel_fbdev), DRM_MEM_KMS, 228 M_WAITOK | M_ZERO); 229 230 dev_priv->fbdev = ifbdev; 231 ifbdev->helper.funcs = &intel_fb_helper_funcs; 232 233 ret = drm_fb_helper_init(dev, &ifbdev->helper, 234 dev_priv->num_pipe, 235 INTELFB_CONN_LIMIT); 236 if (ret) { 237 free(ifbdev, DRM_MEM_KMS); 238 return ret; 239 } 240 241 drm_fb_helper_single_add_all_connectors(&ifbdev->helper); 242 drm_fb_helper_initial_config(&ifbdev->helper, 32); 243 sc_txtmouse_no_retrace_wait = 1; 244 return 0; 245} 246 247void intel_fbdev_fini(struct drm_device *dev) 248{ 249 drm_i915_private_t *dev_priv = dev->dev_private; 250 if (!dev_priv->fbdev) 251 return; 252 253 intel_fbdev_destroy(dev, dev_priv->fbdev); 254 free(dev_priv->fbdev, DRM_MEM_KMS); 255 dev_priv->fbdev = NULL; 256} 257 258void intel_fb_output_poll_changed(struct drm_device *dev) 259{ 260 drm_i915_private_t *dev_priv = dev->dev_private; 261 drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); 262} 263 264void intel_fb_restore_mode(struct drm_device *dev) 265{ 266 int ret; 267 drm_i915_private_t *dev_priv = dev->dev_private; 268 struct drm_mode_config *config = &dev->mode_config; 269 struct drm_plane *plane; 270 271 sx_xlock(&dev->mode_config.mutex); 272 273 ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper); 274 if (ret) 275 DRM_DEBUG("failed to restore crtc mode\n"); 276 277 /* Be sure to shut off any planes that may be active */ 278 list_for_each_entry(plane, &config->plane_list, head) 279 plane->funcs->disable_plane(plane); 280 281 sx_xunlock(&dev->mode_config.mutex); 282} 283