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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; |
79e53945 | 68 | struct drm_mode_fb_cmd 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 | |
38651674 | 80 | mode_cmd.bpp = sizes->surface_bpp; |
35c3047a | 81 | mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 7) / 8), 64); |
38651674 | 82 | mode_cmd.depth = sizes->surface_depth; |
79e53945 JB |
83 | |
84 | size = mode_cmd.pitch * mode_cmd.height; | |
85 | size = ALIGN(size, PAGE_SIZE); | |
05394f39 CW |
86 | obj = i915_gem_alloc_object(dev, size); |
87 | if (!obj) { | |
1ae8c0a5 | 88 | DRM_ERROR("failed to allocate framebuffer\n"); |
79e53945 JB |
89 | ret = -ENOMEM; |
90 | goto out; | |
91 | } | |
79e53945 JB |
92 | |
93 | mutex_lock(&dev->struct_mutex); | |
94 | ||
7213342d | 95 | /* Flush everything out, we'll be doing GTT only from now on */ |
05394f39 | 96 | ret = intel_pin_and_fence_fb_obj(dev, obj, false); |
79e53945 JB |
97 | if (ret) { |
98 | DRM_ERROR("failed to pin fb: %d\n", ret); | |
99 | goto out_unref; | |
100 | } | |
101 | ||
8be48d92 | 102 | info = framebuffer_alloc(0, device); |
79e53945 JB |
103 | if (!info) { |
104 | ret = -ENOMEM; | |
b4476f52 | 105 | goto out_unpin; |
79e53945 JB |
106 | } |
107 | ||
8be48d92 | 108 | info->par = ifbdev; |
79e53945 | 109 | |
05394f39 | 110 | ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj); |
cce13ff7 CW |
111 | if (ret) |
112 | goto out_unpin; | |
79e53945 | 113 | |
38651674 | 114 | fb = &ifbdev->ifb.base; |
79e53945 | 115 | |
38651674 DA |
116 | ifbdev->helper.fb = fb; |
117 | ifbdev->helper.fbdev = info; | |
785b93ef | 118 | |
79e53945 | 119 | strcpy(info->fix.id, "inteldrmfb"); |
79e53945 | 120 | |
8fd4bd22 | 121 | info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
79e53945 JB |
122 | info->fbops = &intelfb_ops; |
123 | ||
35c3047a CW |
124 | ret = fb_alloc_cmap(&info->cmap, 256, 0); |
125 | if (ret) { | |
126 | ret = -ENOMEM; | |
127 | goto out_unpin; | |
128 | } | |
4410f391 | 129 | /* setup aperture base/size for vesafb takeover */ |
1471ca9a MS |
130 | info->apertures = alloc_apertures(1); |
131 | if (!info->apertures) { | |
132 | ret = -ENOMEM; | |
133 | goto out_unpin; | |
134 | } | |
135 | info->apertures->ranges[0].base = dev->mode_config.fb_base; | |
35c3047a CW |
136 | info->apertures->ranges[0].size = |
137 | dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; | |
4410f391 | 138 | |
05394f39 | 139 | info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset; |
79e53945 JB |
140 | info->fix.smem_len = size; |
141 | ||
05394f39 | 142 | info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size); |
79e53945 JB |
143 | if (!info->screen_base) { |
144 | ret = -ENOSPC; | |
b4476f52 | 145 | goto out_unpin; |
79e53945 JB |
146 | } |
147 | info->screen_size = size; | |
148 | ||
149 | // memset(info->screen_base, 0, size); | |
150 | ||
3632ef89 | 151 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); |
38651674 | 152 | drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
79e53945 | 153 | |
79e53945 JB |
154 | info->pixmap.size = 64*1024; |
155 | info->pixmap.buf_align = 8; | |
156 | info->pixmap.access_align = 32; | |
157 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
158 | info->pixmap.scan_align = 1; | |
159 | ||
28c97730 | 160 | DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n", |
8be48d92 | 161 | fb->width, fb->height, |
05394f39 | 162 | obj->gtt_offset, obj); |
79e53945 | 163 | |
79e53945 JB |
164 | |
165 | mutex_unlock(&dev->struct_mutex); | |
6a9ee8af | 166 | vga_switcheroo_client_fb_set(dev->pdev, info); |
79e53945 JB |
167 | return 0; |
168 | ||
b4476f52 | 169 | out_unpin: |
05394f39 | 170 | i915_gem_object_unpin(obj); |
79e53945 | 171 | out_unref: |
05394f39 | 172 | drm_gem_object_unreference(&obj->base); |
79e53945 JB |
173 | mutex_unlock(&dev->struct_mutex); |
174 | out: | |
175 | return ret; | |
176 | } | |
177 | ||
8be48d92 DA |
178 | static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, |
179 | struct drm_fb_helper_surface_size *sizes) | |
79e53945 | 180 | { |
8be48d92 | 181 | struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; |
38651674 | 182 | int new_fb = 0; |
79e53945 JB |
183 | int ret; |
184 | ||
8be48d92 DA |
185 | if (!helper->fb) { |
186 | ret = intelfb_create(ifbdev, sizes); | |
38651674 DA |
187 | if (ret) |
188 | return ret; | |
38651674 | 189 | new_fb = 1; |
38651674 | 190 | } |
38651674 | 191 | return new_fb; |
79e53945 | 192 | } |
79e53945 | 193 | |
4abe3520 DA |
194 | static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
195 | .gamma_set = intel_crtc_fb_gamma_set, | |
196 | .gamma_get = intel_crtc_fb_gamma_get, | |
197 | .fb_probe = intel_fb_find_or_create_single, | |
198 | }; | |
79e53945 | 199 | |
7b4f3990 CW |
200 | static void intel_fbdev_destroy(struct drm_device *dev, |
201 | struct intel_fbdev *ifbdev) | |
79e53945 JB |
202 | { |
203 | struct fb_info *info; | |
38651674 | 204 | struct intel_framebuffer *ifb = &ifbdev->ifb; |
79e53945 | 205 | |
8be48d92 DA |
206 | if (ifbdev->helper.fbdev) { |
207 | info = ifbdev->helper.fbdev; | |
79e53945 JB |
208 | unregister_framebuffer(info); |
209 | iounmap(info->screen_base); | |
4abe3520 DA |
210 | if (info->cmap.len) |
211 | fb_dealloc_cmap(&info->cmap); | |
79e53945 JB |
212 | framebuffer_release(info); |
213 | } | |
214 | ||
4abe3520 | 215 | drm_fb_helper_fini(&ifbdev->helper); |
79e53945 | 216 | |
38651674 | 217 | drm_framebuffer_cleanup(&ifb->base); |
29d08b3e | 218 | if (ifb->obj) { |
05394f39 | 219 | drm_gem_object_unreference_unlocked(&ifb->obj->base); |
dab8dcfa | 220 | ifb->obj = NULL; |
29d08b3e | 221 | } |
79e53945 | 222 | } |
38651674 DA |
223 | |
224 | int intel_fbdev_init(struct drm_device *dev) | |
225 | { | |
8be48d92 DA |
226 | struct intel_fbdev *ifbdev; |
227 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5a79395b | 228 | int ret; |
8be48d92 DA |
229 | |
230 | ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); | |
231 | if (!ifbdev) | |
232 | return -ENOMEM; | |
233 | ||
234 | dev_priv->fbdev = ifbdev; | |
4abe3520 DA |
235 | ifbdev->helper.funcs = &intel_fb_helper_funcs; |
236 | ||
5a79395b CW |
237 | ret = drm_fb_helper_init(dev, &ifbdev->helper, |
238 | dev_priv->num_pipe, | |
239 | INTELFB_CONN_LIMIT); | |
240 | if (ret) { | |
241 | kfree(ifbdev); | |
242 | return ret; | |
243 | } | |
8be48d92 | 244 | |
0b4c0f3f | 245 | drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
4abe3520 | 246 | drm_fb_helper_initial_config(&ifbdev->helper, 32); |
79e53945 JB |
247 | return 0; |
248 | } | |
38651674 DA |
249 | |
250 | void intel_fbdev_fini(struct drm_device *dev) | |
251 | { | |
252 | drm_i915_private_t *dev_priv = dev->dev_private; | |
8be48d92 DA |
253 | if (!dev_priv->fbdev) |
254 | return; | |
255 | ||
38651674 | 256 | intel_fbdev_destroy(dev, dev_priv->fbdev); |
8be48d92 | 257 | kfree(dev_priv->fbdev); |
38651674 DA |
258 | dev_priv->fbdev = NULL; |
259 | } | |
79e53945 | 260 | MODULE_LICENSE("GPL and additional rights"); |
eb1f8e4f DA |
261 | |
262 | void intel_fb_output_poll_changed(struct drm_device *dev) | |
263 | { | |
264 | drm_i915_private_t *dev_priv = dev->dev_private; | |
265 | drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); | |
266 | } | |
e8e7a2b8 DA |
267 | |
268 | void intel_fb_restore_mode(struct drm_device *dev) | |
269 | { | |
270 | int ret; | |
271 | drm_i915_private_t *dev_priv = dev->dev_private; | |
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 | } |