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: stable/10/sys/dev/drm2/i915/intel_fb.c 282199 2015-04-28 19:35:05Z dumbbell $");
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
intelfb_create(struct intel_fbdev * ifbdev,struct drm_fb_helper_surface_size * sizes)39 static 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, NULL);
77 if (ret) {
78 DRM_ERROR("failed to pin fb: %d\n", ret);
79 goto out_unref;
80 }
81
82 info = framebuffer_alloc();
83 if (!info) {
84 ret = -ENOMEM;
85 goto out_unpin;
86 }
87
88 #if 0
89 info->par = ifbdev;
90 #else
91 info->fb_size = size;
92 info->fb_bpp = sizes->surface_bpp;
93 info->fb_pbase = dev->agp->base + obj->gtt_offset;
94 info->fb_vbase = (vm_offset_t)pmap_mapdev_attr(info->fb_pbase, size,
95 PAT_WRITE_COMBINING);
96
97 #endif
98
99 ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
100 if (ret)
101 goto out_unpin;
102
103 fb = &ifbdev->ifb.base;
104
105 ifbdev->helper.fb = fb;
106 ifbdev->helper.fbdev = info;
107 #if 0
108
109 strcpy(info->fix.id, "inteldrmfb");
110
111 info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
112 info->fbops = &intelfb_ops;
113
114 ret = fb_alloc_cmap(&info->cmap, 256, 0);
115 if (ret) {
116 ret = -ENOMEM;
117 goto out_unpin;
118 }
119 /* setup aperture base/size for vesafb takeover */
120 info->apertures = alloc_apertures(1);
121 if (!info->apertures) {
122 ret = -ENOMEM;
123 goto out_unpin;
124 }
125 info->apertures->ranges[0].base = dev->mode_config.fb_base;
126 info->apertures->ranges[0].size =
127 dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
128
129 info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
130 info->fix.smem_len = size;
131
132 info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
133 if (!info->screen_base) {
134 ret = -ENOSPC;
135 goto out_unpin;
136 }
137 info->screen_size = size;
138
139 // memset(info->screen_base, 0, size);
140 #endif
141
142 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
143 drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
144
145 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
146 DRM_DEBUG_KMS("allocated %dx%d (s %dbits) fb: 0x%08x, bo %p\n",
147 fb->width, fb->height, fb->depth,
148 obj->gtt_offset, obj);
149
150 DRM_UNLOCK(dev);
151 #if 1
152 KIB_NOTYET();
153 #else
154 vga_switcheroo_client_fb_set(dev->pdev, info);
155 #endif
156 return 0;
157
158 out_unpin:
159 i915_gem_object_unpin(obj);
160 out_unref:
161 drm_gem_object_unreference(&obj->base);
162 DRM_UNLOCK(dev);
163 out:
164 return ret;
165 }
166
intel_fb_find_or_create_single(struct drm_fb_helper * helper,struct drm_fb_helper_surface_size * sizes)167 static int intel_fb_find_or_create_single(struct drm_fb_helper *helper,
168 struct drm_fb_helper_surface_size *sizes)
169 {
170 struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
171 int new_fb = 0;
172 int ret;
173
174 if (!helper->fb) {
175 ret = intelfb_create(ifbdev, sizes);
176 if (ret)
177 return ret;
178 new_fb = 1;
179 }
180 return new_fb;
181 }
182
183 static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
184 .gamma_set = intel_crtc_fb_gamma_set,
185 .gamma_get = intel_crtc_fb_gamma_get,
186 .fb_probe = intel_fb_find_or_create_single,
187 };
188
intel_fbdev_destroy(struct drm_device * dev,struct intel_fbdev * ifbdev)189 static void intel_fbdev_destroy(struct drm_device *dev,
190 struct intel_fbdev *ifbdev)
191 {
192 struct fb_info *info;
193 struct intel_framebuffer *ifb = &ifbdev->ifb;
194
195 if (ifbdev->helper.fbdev) {
196 info = ifbdev->helper.fbdev;
197 #if 0
198 unregister_framebuffer(info);
199 iounmap(info->screen_base);
200 if (info->cmap.len)
201 fb_dealloc_cmap(&info->cmap);
202 #endif
203 framebuffer_release(info);
204 }
205
206 drm_fb_helper_fini(&ifbdev->helper);
207
208 drm_framebuffer_cleanup(&ifb->base);
209 if (ifb->obj) {
210 drm_gem_object_unreference_unlocked(&ifb->obj->base);
211 ifb->obj = NULL;
212 }
213 }
214
215 #ifdef DEV_SC
216 extern int sc_txtmouse_no_retrace_wait;
217 #endif
218
intel_fbdev_init(struct drm_device * dev)219 int intel_fbdev_init(struct drm_device *dev)
220 {
221 struct intel_fbdev *ifbdev;
222 drm_i915_private_t *dev_priv = dev->dev_private;
223 int ret;
224
225 ifbdev = malloc(sizeof(struct intel_fbdev), DRM_MEM_KMS,
226 M_WAITOK | M_ZERO);
227
228 dev_priv->fbdev = ifbdev;
229 ifbdev->helper.funcs = &intel_fb_helper_funcs;
230
231 ret = drm_fb_helper_init(dev, &ifbdev->helper,
232 dev_priv->num_pipe,
233 INTELFB_CONN_LIMIT);
234 if (ret) {
235 free(ifbdev, DRM_MEM_KMS);
236 return ret;
237 }
238
239 drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
240 drm_fb_helper_initial_config(&ifbdev->helper, 32);
241 #ifdef DEV_SC
242 sc_txtmouse_no_retrace_wait = 1;
243 #endif
244 return 0;
245 }
246
intel_fbdev_fini(struct drm_device * dev)247 void 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
intel_fb_output_poll_changed(struct drm_device * dev)258 void 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
intel_fb_restore_mode(struct drm_device * dev)264 void 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