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("$FreeBSD$");
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__)
39 static 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
intelfb_create(struct intel_fbdev * ifbdev,struct drm_fb_helper_surface_size * sizes)54 static 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
132 out_unpin:
133 i915_gem_object_unpin(obj);
134 out_unref:
135 drm_gem_object_unreference(&obj->base);
136 DRM_UNLOCK(dev);
137 out:
138 return ret;
139 }
140
intel_fb_find_or_create_single(struct drm_fb_helper * helper,struct drm_fb_helper_surface_size * sizes)141 static 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
157 static 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
intel_fbdev_destroy(struct drm_device * dev,struct intel_fbdev * ifbdev)163 static 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
186 extern int sc_txtmouse_no_retrace_wait;
187 #endif
188
intel_fbdev_init(struct drm_device * dev)189 int 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
intel_fbdev_fini(struct drm_device * dev)218 void 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
intel_fbdev_set_suspend(struct drm_device * dev,int state)229 void 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
240 MODULE_LICENSE("GPL and additional rights");
241
intel_fb_output_poll_changed(struct drm_device * dev)242 void 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
intel_fb_restore_mode(struct drm_device * dev)248 void 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