intel_fb.c revision 268947
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 268947 2014-07-21 16:38:05Z emaste $"); 29 30#include "opt_syscons.h" 31#include <dev/drm2/drmP.h> 32#include <dev/drm2/drm.h> 33#include <dev/drm2/drm_crtc.h> 34#include <dev/drm2/drm_fb_helper.h> 35#include <dev/drm2/i915/i915_drm.h> 36#include <dev/drm2/i915/i915_drv.h> 37#include <dev/drm2/i915/intel_drv.h> 38 39static int intelfb_create(struct intel_fbdev *ifbdev, 40 struct drm_fb_helper_surface_size *sizes) 41{ 42 struct drm_device *dev = ifbdev->helper.dev; 43#if 0 44 struct drm_i915_private *dev_priv = dev->dev_private; 45#endif 46 struct fb_info *info; 47 struct drm_framebuffer *fb; 48 struct drm_mode_fb_cmd2 mode_cmd; 49 struct drm_i915_gem_object *obj; 50 int size, ret; 51 52 /* we don't do packed 24bpp */ 53 if (sizes->surface_bpp == 24) 54 sizes->surface_bpp = 32; 55 56 mode_cmd.width = sizes->surface_width; 57 mode_cmd.height = sizes->surface_height; 58 59 mode_cmd.pitches[0] = roundup2(mode_cmd.width * ((sizes->surface_bpp + 7) / 60 8), 64); 61 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, 62 sizes->surface_depth); 63 64 size = mode_cmd.pitches[0] * mode_cmd.height; 65 size = roundup2(size, PAGE_SIZE); 66 obj = i915_gem_alloc_object(dev, size); 67 if (!obj) { 68 DRM_ERROR("failed to allocate framebuffer\n"); 69 ret = -ENOMEM; 70 goto out; 71 } 72 73 DRM_LOCK(dev); 74 75 /* Flush everything out, we'll be doing GTT only from now on */ 76 ret = intel_pin_and_fence_fb_obj(dev, obj, false); 77 if (ret) { 78 DRM_ERROR("failed to pin fb: %d\n", ret); 79 goto out_unref; 80 } 81 82#if 0 83 info = framebuffer_alloc(0, device); 84 if (!info) { 85 ret = -ENOMEM; 86 goto out_unpin; 87 } 88 89 info->par = ifbdev; 90#else 91 info = malloc(sizeof(struct fb_info), DRM_MEM_KMS, M_WAITOK | M_ZERO); 92 info->fb_size = size; 93 info->fb_bpp = sizes->surface_bpp; 94 info->fb_width = sizes->fb_width; 95 info->fb_height = sizes->fb_height; 96 info->fb_pbase = dev->agp->base + obj->gtt_offset; 97 info->fb_vbase = (vm_offset_t)pmap_mapdev_attr(info->fb_pbase, size, 98 PAT_WRITE_COMBINING); 99 100#endif 101 102 ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); 103 if (ret) 104 goto out_unpin; 105 106 fb = &ifbdev->ifb.base; 107 108 ifbdev->helper.fb = fb; 109 ifbdev->helper.fbdev = info; 110#if 0 111 112 strcpy(info->fix.id, "inteldrmfb"); 113 114 info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; 115 info->fbops = &intelfb_ops; 116 117 ret = fb_alloc_cmap(&info->cmap, 256, 0); 118 if (ret) { 119 ret = -ENOMEM; 120 goto out_unpin; 121 } 122 /* setup aperture base/size for vesafb takeover */ 123 info->apertures = alloc_apertures(1); 124 if (!info->apertures) { 125 ret = -ENOMEM; 126 goto out_unpin; 127 } 128 info->apertures->ranges[0].base = dev->mode_config.fb_base; 129 info->apertures->ranges[0].size = 130 dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; 131 132 info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset; 133 info->fix.smem_len = size; 134 135 info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size); 136 if (!info->screen_base) { 137 ret = -ENOSPC; 138 goto out_unpin; 139 } 140 info->screen_size = size; 141 142// memset(info->screen_base, 0, size); 143 144 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); 145 drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); 146 147 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ 148#endif 149 DRM_DEBUG_KMS("allocated %dx%d (s %dbits) fb: 0x%08x, bo %p\n", 150 fb->width, fb->height, fb->depth, 151 obj->gtt_offset, obj); 152 153 DRM_UNLOCK(dev); 154#if 1 155 KIB_NOTYET(); 156#else 157 vga_switcheroo_client_fb_set(dev->pdev, info); 158#endif 159 return 0; 160 161out_unpin: 162 i915_gem_object_unpin(obj); 163out_unref: 164 drm_gem_object_unreference(&obj->base); 165 DRM_UNLOCK(dev); 166out: 167 return ret; 168} 169 170static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, 171 struct drm_fb_helper_surface_size *sizes) 172{ 173 struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; 174 int new_fb = 0; 175 int ret; 176 177 if (!helper->fb) { 178 ret = intelfb_create(ifbdev, sizes); 179 if (ret) 180 return ret; 181 new_fb = 1; 182 } 183 return new_fb; 184} 185 186static struct drm_fb_helper_funcs intel_fb_helper_funcs = { 187 .gamma_set = intel_crtc_fb_gamma_set, 188 .gamma_get = intel_crtc_fb_gamma_get, 189 .fb_probe = intel_fb_find_or_create_single, 190}; 191 192static void intel_fbdev_destroy(struct drm_device *dev, 193 struct intel_fbdev *ifbdev) 194{ 195#if 0 196 struct fb_info *info; 197#endif 198 struct intel_framebuffer *ifb = &ifbdev->ifb; 199 200#if 0 201 if (ifbdev->helper.fbdev) { 202 info = ifbdev->helper.fbdev; 203 unregister_framebuffer(info); 204 iounmap(info->screen_base); 205 if (info->cmap.len) 206 fb_dealloc_cmap(&info->cmap); 207 framebuffer_release(info); 208 } 209#endif 210 211 drm_fb_helper_fini(&ifbdev->helper); 212 213 drm_framebuffer_cleanup(&ifb->base); 214 if (ifb->obj) { 215 drm_gem_object_unreference_unlocked(&ifb->obj->base); 216 ifb->obj = NULL; 217 } 218} 219 220#ifdef DEV_SC 221extern int sc_txtmouse_no_retrace_wait; 222#endif 223 224int intel_fbdev_init(struct drm_device *dev) 225{ 226 struct intel_fbdev *ifbdev; 227 drm_i915_private_t *dev_priv = dev->dev_private; 228 int ret; 229 230 ifbdev = malloc(sizeof(struct intel_fbdev), DRM_MEM_KMS, 231 M_WAITOK | M_ZERO); 232 233 dev_priv->fbdev = ifbdev; 234 ifbdev->helper.funcs = &intel_fb_helper_funcs; 235 236 ret = drm_fb_helper_init(dev, &ifbdev->helper, 237 dev_priv->num_pipe, 238 INTELFB_CONN_LIMIT); 239 if (ret) { 240 free(ifbdev, DRM_MEM_KMS); 241 return ret; 242 } 243 244 drm_fb_helper_single_add_all_connectors(&ifbdev->helper); 245 drm_fb_helper_initial_config(&ifbdev->helper, 32); 246#ifdef DEV_SC 247 sc_txtmouse_no_retrace_wait = 1; 248#endif 249 return 0; 250} 251 252void intel_fbdev_fini(struct drm_device *dev) 253{ 254 drm_i915_private_t *dev_priv = dev->dev_private; 255 if (!dev_priv->fbdev) 256 return; 257 258 intel_fbdev_destroy(dev, dev_priv->fbdev); 259 free(dev_priv->fbdev, DRM_MEM_KMS); 260 dev_priv->fbdev = NULL; 261} 262 263void intel_fb_output_poll_changed(struct drm_device *dev) 264{ 265 drm_i915_private_t *dev_priv = dev->dev_private; 266 drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); 267} 268 269void intel_fb_restore_mode(struct drm_device *dev) 270{ 271 int ret; 272 drm_i915_private_t *dev_priv = dev->dev_private; 273 struct drm_mode_config *config = &dev->mode_config; 274 struct drm_plane *plane; 275 276 sx_xlock(&dev->mode_config.mutex); 277 278 ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper); 279 if (ret) 280 DRM_DEBUG("failed to restore crtc mode\n"); 281 282 /* Be sure to shut off any planes that may be active */ 283 list_for_each_entry(plane, &config->plane_list, head) 284 plane->funcs->disable_plane(plane); 285 286 sx_xunlock(&dev->mode_config.mutex); 287} 288