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79e53945 JB |
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 <linux/module.h> | |
28 | #include <linux/kernel.h> | |
29 | #include <linux/errno.h> | |
30 | #include <linux/string.h> | |
31 | #include <linux/mm.h> | |
32 | #include <linux/tty.h> | |
79e53945 JB |
33 | #include <linux/sysrq.h> |
34 | #include <linux/delay.h> | |
35 | #include <linux/fb.h> | |
36 | #include <linux/init.h> | |
6a9ee8af | 37 | #include <linux/vga_switcheroo.h> |
79e53945 JB |
38 | |
39 | #include "drmP.h" | |
40 | #include "drm.h" | |
41 | #include "drm_crtc.h" | |
785b93ef | 42 | #include "drm_fb_helper.h" |
79e53945 JB |
43 | #include "intel_drv.h" |
44 | #include "i915_drm.h" | |
45 | #include "i915_drv.h" | |
46 | ||
79e53945 JB |
47 | static struct fb_ops intelfb_ops = { |
48 | .owner = THIS_MODULE, | |
785b93ef DA |
49 | .fb_check_var = drm_fb_helper_check_var, |
50 | .fb_set_par = drm_fb_helper_set_par, | |
79e53945 JB |
51 | .fb_fillrect = cfb_fillrect, |
52 | .fb_copyarea = cfb_copyarea, | |
53 | .fb_imageblit = cfb_imageblit, | |
785b93ef DA |
54 | .fb_pan_display = drm_fb_helper_pan_display, |
55 | .fb_blank = drm_fb_helper_blank, | |
068143d3 | 56 | .fb_setcmap = drm_fb_helper_setcmap, |
81255565 JB |
57 | .fb_debug_enter = drm_fb_helper_debug_enter, |
58 | .fb_debug_leave = drm_fb_helper_debug_leave, | |
79e53945 JB |
59 | }; |
60 | ||
8be48d92 DA |
61 | static int intelfb_create(struct intel_fbdev *ifbdev, |
62 | struct drm_fb_helper_surface_size *sizes) | |
79e53945 | 63 | { |
8be48d92 | 64 | struct drm_device *dev = ifbdev->helper.dev; |
35c3047a | 65 | struct drm_i915_private *dev_priv = dev->dev_private; |
79e53945 | 66 | struct fb_info *info; |
79e53945 | 67 | struct drm_framebuffer *fb; |
3a7f2f6a | 68 | struct drm_mode_fb_cmd2 mode_cmd = {}; |
05394f39 | 69 | struct drm_i915_gem_object *obj; |
79e53945 | 70 | struct device *device = &dev->pdev->dev; |
57084d05 | 71 | int size, ret; |
79e53945 | 72 | |
b8c00ac5 | 73 | /* we don't do packed 24bpp */ |
38651674 DA |
74 | if (sizes->surface_bpp == 24) |
75 | sizes->surface_bpp = 32; | |
b8c00ac5 | 76 | |
38651674 DA |
77 | mode_cmd.width = sizes->surface_width; |
78 | mode_cmd.height = sizes->surface_height; | |
79e53945 | 79 | |
308e5bcb JB |
80 | mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) / |
81 | 8), 64); | |
82 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, | |
83 | sizes->surface_depth); | |
79e53945 | 84 | |
308e5bcb | 85 | size = mode_cmd.pitches[0] * mode_cmd.height; |
79e53945 | 86 | size = ALIGN(size, PAGE_SIZE); |
05394f39 CW |
87 | obj = i915_gem_alloc_object(dev, size); |
88 | if (!obj) { | |
1ae8c0a5 | 89 | DRM_ERROR("failed to allocate framebuffer\n"); |
79e53945 JB |
90 | ret = -ENOMEM; |
91 | goto out; | |
92 | } | |
79e53945 JB |
93 | |
94 | mutex_lock(&dev->struct_mutex); | |
95 | ||
7213342d | 96 | /* Flush everything out, we'll be doing GTT only from now on */ |
c43b5634 | 97 | ret = intel_pin_and_fence_fb_obj(dev, obj, NULL); |
79e53945 JB |
98 | if (ret) { |
99 | DRM_ERROR("failed to pin fb: %d\n", ret); | |
100 | goto out_unref; | |
101 | } | |
102 | ||
8be48d92 | 103 | info = framebuffer_alloc(0, device); |
79e53945 JB |
104 | if (!info) { |
105 | ret = -ENOMEM; | |
b4476f52 | 106 | goto out_unpin; |
79e53945 JB |
107 | } |
108 | ||
8be48d92 | 109 | info->par = ifbdev; |
79e53945 | 110 | |
05394f39 | 111 | ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); |
cce13ff7 CW |
112 | if (ret) |
113 | goto out_unpin; | |
79e53945 | 114 | |
38651674 | 115 | fb = &ifbdev->ifb.base; |
79e53945 | 116 | |
38651674 DA |
117 | ifbdev->helper.fb = fb; |
118 | ifbdev->helper.fbdev = info; | |
785b93ef | 119 | |
79e53945 | 120 | strcpy(info->fix.id, "inteldrmfb"); |
79e53945 | 121 | |
8fd4bd22 | 122 | info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
79e53945 JB |
123 | info->fbops = &intelfb_ops; |
124 | ||
35c3047a CW |
125 | ret = fb_alloc_cmap(&info->cmap, 256, 0); |
126 | if (ret) { | |
127 | ret = -ENOMEM; | |
128 | goto out_unpin; | |
129 | } | |
4410f391 | 130 | /* setup aperture base/size for vesafb takeover */ |
1471ca9a MS |
131 | info->apertures = alloc_apertures(1); |
132 | if (!info->apertures) { | |
133 | ret = -ENOMEM; | |
134 | goto out_unpin; | |
135 | } | |
136 | info->apertures->ranges[0].base = dev->mode_config.fb_base; | |
35c3047a CW |
137 | info->apertures->ranges[0].size = |
138 | dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; | |
4410f391 | 139 | |
05394f39 | 140 | info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset; |
79e53945 JB |
141 | info->fix.smem_len = size; |
142 | ||
dd2757f8 DV |
143 | info->screen_base = |
144 | ioremap_wc(dev_priv->mm.gtt_base_addr + obj->gtt_offset, | |
145 | size); | |
79e53945 JB |
146 | if (!info->screen_base) { |
147 | ret = -ENOSPC; | |
b4476f52 | 148 | goto out_unpin; |
79e53945 JB |
149 | } |
150 | info->screen_size = size; | |
151 | ||
152 | // memset(info->screen_base, 0, size); | |
153 | ||
01f2c773 | 154 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); |
38651674 | 155 | drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
79e53945 | 156 | |
fb2a99e1 | 157 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
79e53945 | 158 | |
28c97730 | 159 | DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n", |
8be48d92 | 160 | fb->width, fb->height, |
05394f39 | 161 | obj->gtt_offset, obj); |
79e53945 | 162 | |
79e53945 JB |
163 | |
164 | mutex_unlock(&dev->struct_mutex); | |
6a9ee8af | 165 | vga_switcheroo_client_fb_set(dev->pdev, info); |
79e53945 JB |
166 | return 0; |
167 | ||
b4476f52 | 168 | out_unpin: |
05394f39 | 169 | i915_gem_object_unpin(obj); |
79e53945 | 170 | out_unref: |
05394f39 | 171 | drm_gem_object_unreference(&obj->base); |
79e53945 JB |
172 | mutex_unlock(&dev->struct_mutex); |
173 | out: | |
174 | return ret; | |
175 | } | |
176 | ||
8be48d92 DA |
177 | static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, |
178 | struct drm_fb_helper_surface_size *sizes) | |
79e53945 | 179 | { |
8be48d92 | 180 | struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; |
38651674 | 181 | int new_fb = 0; |
79e53945 JB |
182 | int ret; |
183 | ||
8be48d92 DA |
184 | if (!helper->fb) { |
185 | ret = intelfb_create(ifbdev, sizes); | |
38651674 DA |
186 | if (ret) |
187 | return ret; | |
38651674 | 188 | new_fb = 1; |
38651674 | 189 | } |
38651674 | 190 | return new_fb; |
79e53945 | 191 | } |
79e53945 | 192 | |
4abe3520 DA |
193 | static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
194 | .gamma_set = intel_crtc_fb_gamma_set, | |
195 | .gamma_get = intel_crtc_fb_gamma_get, | |
196 | .fb_probe = intel_fb_find_or_create_single, | |
197 | }; | |
79e53945 | 198 | |
7b4f3990 CW |
199 | static void intel_fbdev_destroy(struct drm_device *dev, |
200 | struct intel_fbdev *ifbdev) | |
79e53945 JB |
201 | { |
202 | struct fb_info *info; | |
38651674 | 203 | struct intel_framebuffer *ifb = &ifbdev->ifb; |
79e53945 | 204 | |
8be48d92 DA |
205 | if (ifbdev->helper.fbdev) { |
206 | info = ifbdev->helper.fbdev; | |
79e53945 JB |
207 | unregister_framebuffer(info); |
208 | iounmap(info->screen_base); | |
4abe3520 DA |
209 | if (info->cmap.len) |
210 | fb_dealloc_cmap(&info->cmap); | |
79e53945 JB |
211 | framebuffer_release(info); |
212 | } | |
213 | ||
4abe3520 | 214 | drm_fb_helper_fini(&ifbdev->helper); |
79e53945 | 215 | |
38651674 | 216 | drm_framebuffer_cleanup(&ifb->base); |
29d08b3e | 217 | if (ifb->obj) { |
05394f39 | 218 | drm_gem_object_unreference_unlocked(&ifb->obj->base); |
dab8dcfa | 219 | ifb->obj = NULL; |
29d08b3e | 220 | } |
79e53945 | 221 | } |
38651674 DA |
222 | |
223 | int intel_fbdev_init(struct drm_device *dev) | |
224 | { | |
8be48d92 DA |
225 | struct intel_fbdev *ifbdev; |
226 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5a79395b | 227 | int ret; |
8be48d92 DA |
228 | |
229 | ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); | |
230 | if (!ifbdev) | |
231 | return -ENOMEM; | |
232 | ||
233 | dev_priv->fbdev = ifbdev; | |
4abe3520 DA |
234 | ifbdev->helper.funcs = &intel_fb_helper_funcs; |
235 | ||
5a79395b CW |
236 | ret = drm_fb_helper_init(dev, &ifbdev->helper, |
237 | dev_priv->num_pipe, | |
238 | INTELFB_CONN_LIMIT); | |
239 | if (ret) { | |
240 | kfree(ifbdev); | |
241 | return ret; | |
242 | } | |
8be48d92 | 243 | |
0b4c0f3f | 244 | drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
4abe3520 | 245 | drm_fb_helper_initial_config(&ifbdev->helper, 32); |
79e53945 JB |
246 | return 0; |
247 | } | |
38651674 DA |
248 | |
249 | void intel_fbdev_fini(struct drm_device *dev) | |
250 | { | |
251 | drm_i915_private_t *dev_priv = dev->dev_private; | |
8be48d92 DA |
252 | if (!dev_priv->fbdev) |
253 | return; | |
254 | ||
38651674 | 255 | intel_fbdev_destroy(dev, dev_priv->fbdev); |
8be48d92 | 256 | kfree(dev_priv->fbdev); |
38651674 DA |
257 | dev_priv->fbdev = NULL; |
258 | } | |
3fa016a0 DA |
259 | |
260 | void intel_fbdev_set_suspend(struct drm_device *dev, int state) | |
261 | { | |
262 | drm_i915_private_t *dev_priv = dev->dev_private; | |
263 | if (!dev_priv->fbdev) | |
264 | return; | |
265 | ||
266 | fb_set_suspend(dev_priv->fbdev->helper.fbdev, state); | |
267 | } | |
268 | ||
79e53945 | 269 | MODULE_LICENSE("GPL and additional rights"); |
eb1f8e4f DA |
270 | |
271 | void intel_fb_output_poll_changed(struct drm_device *dev) | |
272 | { | |
273 | drm_i915_private_t *dev_priv = dev->dev_private; | |
274 | drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); | |
275 | } | |
e8e7a2b8 DA |
276 | |
277 | void intel_fb_restore_mode(struct drm_device *dev) | |
278 | { | |
279 | int ret; | |
280 | drm_i915_private_t *dev_priv = dev->dev_private; | |
b840d907 JB |
281 | struct drm_mode_config *config = &dev->mode_config; |
282 | struct drm_plane *plane; | |
e8e7a2b8 | 283 | |
c291be9d CW |
284 | mutex_lock(&dev->mode_config.mutex); |
285 | ||
e8e7a2b8 DA |
286 | ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper); |
287 | if (ret) | |
288 | DRM_DEBUG("failed to restore crtc mode\n"); | |
b840d907 JB |
289 | |
290 | /* Be sure to shut off any planes that may be active */ | |
291 | list_for_each_entry(plane, &config->plane_list, head) | |
292 | plane->funcs->disable_plane(plane); | |
c291be9d CW |
293 | |
294 | mutex_unlock(&dev->mode_config.mutex); | |
e8e7a2b8 | 295 | } |