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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 | ||
8be48d92 | 47 | struct intel_fbdev { |
785b93ef | 48 | struct drm_fb_helper helper; |
38651674 DA |
49 | struct intel_framebuffer ifb; |
50 | struct list_head fbdev_list; | |
785b93ef | 51 | struct drm_display_mode *our_mode; |
79e53945 JB |
52 | }; |
53 | ||
79e53945 JB |
54 | static struct fb_ops intelfb_ops = { |
55 | .owner = THIS_MODULE, | |
785b93ef DA |
56 | .fb_check_var = drm_fb_helper_check_var, |
57 | .fb_set_par = drm_fb_helper_set_par, | |
79e53945 JB |
58 | .fb_fillrect = cfb_fillrect, |
59 | .fb_copyarea = cfb_copyarea, | |
60 | .fb_imageblit = cfb_imageblit, | |
785b93ef DA |
61 | .fb_pan_display = drm_fb_helper_pan_display, |
62 | .fb_blank = drm_fb_helper_blank, | |
068143d3 | 63 | .fb_setcmap = drm_fb_helper_setcmap, |
81255565 JB |
64 | .fb_debug_enter = drm_fb_helper_debug_enter, |
65 | .fb_debug_leave = drm_fb_helper_debug_leave, | |
79e53945 JB |
66 | }; |
67 | ||
8be48d92 DA |
68 | static int intelfb_create(struct intel_fbdev *ifbdev, |
69 | struct drm_fb_helper_surface_size *sizes) | |
79e53945 | 70 | { |
8be48d92 | 71 | struct drm_device *dev = ifbdev->helper.dev; |
79e53945 | 72 | struct fb_info *info; |
79e53945 | 73 | struct drm_framebuffer *fb; |
79e53945 JB |
74 | struct drm_mode_fb_cmd mode_cmd; |
75 | struct drm_gem_object *fbo = NULL; | |
76 | struct drm_i915_gem_object *obj_priv; | |
77 | struct device *device = &dev->pdev->dev; | |
78 | int size, ret, mmio_bar = IS_I9XX(dev) ? 0 : 1; | |
79 | ||
b8c00ac5 | 80 | /* we don't do packed 24bpp */ |
38651674 DA |
81 | if (sizes->surface_bpp == 24) |
82 | sizes->surface_bpp = 32; | |
b8c00ac5 | 83 | |
38651674 DA |
84 | mode_cmd.width = sizes->surface_width; |
85 | mode_cmd.height = sizes->surface_height; | |
79e53945 | 86 | |
38651674 | 87 | mode_cmd.bpp = sizes->surface_bpp; |
e7da40f0 | 88 | mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64); |
38651674 | 89 | mode_cmd.depth = sizes->surface_depth; |
79e53945 JB |
90 | |
91 | size = mode_cmd.pitch * mode_cmd.height; | |
92 | size = ALIGN(size, PAGE_SIZE); | |
ac52bc56 | 93 | fbo = i915_gem_alloc_object(dev, size); |
79e53945 | 94 | if (!fbo) { |
1ae8c0a5 | 95 | DRM_ERROR("failed to allocate framebuffer\n"); |
79e53945 JB |
96 | ret = -ENOMEM; |
97 | goto out; | |
98 | } | |
23010e43 | 99 | obj_priv = to_intel_bo(fbo); |
79e53945 JB |
100 | |
101 | mutex_lock(&dev->struct_mutex); | |
102 | ||
127bd2ac | 103 | ret = intel_pin_and_fence_fb_obj(dev, fbo); |
79e53945 JB |
104 | if (ret) { |
105 | DRM_ERROR("failed to pin fb: %d\n", ret); | |
106 | goto out_unref; | |
107 | } | |
108 | ||
109 | /* Flush everything out, we'll be doing GTT only from now on */ | |
85cd4612 CW |
110 | ret = i915_gem_object_set_to_gtt_domain(fbo, 1); |
111 | if (ret) { | |
112 | DRM_ERROR("failed to bind fb: %d.\n", ret); | |
113 | goto out_unpin; | |
114 | } | |
79e53945 | 115 | |
8be48d92 | 116 | info = framebuffer_alloc(0, device); |
79e53945 JB |
117 | if (!info) { |
118 | ret = -ENOMEM; | |
b4476f52 | 119 | goto out_unpin; |
79e53945 JB |
120 | } |
121 | ||
8be48d92 | 122 | info->par = ifbdev; |
79e53945 | 123 | |
cce13ff7 CW |
124 | ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, fbo); |
125 | if (ret) | |
126 | goto out_unpin; | |
79e53945 | 127 | |
38651674 | 128 | fb = &ifbdev->ifb.base; |
79e53945 | 129 | |
38651674 DA |
130 | ifbdev->helper.fb = fb; |
131 | ifbdev->helper.fbdev = info; | |
785b93ef | 132 | |
79e53945 | 133 | strcpy(info->fix.id, "inteldrmfb"); |
79e53945 | 134 | |
8fd4bd22 | 135 | info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
79e53945 JB |
136 | info->fbops = &intelfb_ops; |
137 | ||
4410f391 | 138 | /* setup aperture base/size for vesafb takeover */ |
1471ca9a MS |
139 | info->apertures = alloc_apertures(1); |
140 | if (!info->apertures) { | |
141 | ret = -ENOMEM; | |
142 | goto out_unpin; | |
143 | } | |
144 | info->apertures->ranges[0].base = dev->mode_config.fb_base; | |
4410f391 | 145 | if (IS_I9XX(dev)) |
1471ca9a | 146 | info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 2); |
4410f391 | 147 | else |
1471ca9a | 148 | info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0); |
4410f391 | 149 | |
79e53945 JB |
150 | info->fix.smem_start = dev->mode_config.fb_base + obj_priv->gtt_offset; |
151 | info->fix.smem_len = size; | |
152 | ||
79e53945 JB |
153 | info->screen_base = ioremap_wc(dev->agp->base + obj_priv->gtt_offset, |
154 | size); | |
155 | if (!info->screen_base) { | |
156 | ret = -ENOSPC; | |
b4476f52 | 157 | goto out_unpin; |
79e53945 | 158 | } |
4abe3520 DA |
159 | |
160 | ret = fb_alloc_cmap(&info->cmap, 256, 0); | |
161 | if (ret) { | |
162 | ret = -ENOMEM; | |
163 | goto out_unpin; | |
164 | } | |
79e53945 JB |
165 | info->screen_size = size; |
166 | ||
167 | // memset(info->screen_base, 0, size); | |
168 | ||
068143d3 | 169 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); |
38651674 | 170 | drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
79e53945 JB |
171 | |
172 | /* FIXME: we really shouldn't expose mmio space at all */ | |
173 | info->fix.mmio_start = pci_resource_start(dev->pdev, mmio_bar); | |
174 | info->fix.mmio_len = pci_resource_len(dev->pdev, mmio_bar); | |
175 | ||
176 | info->pixmap.size = 64*1024; | |
177 | info->pixmap.buf_align = 8; | |
178 | info->pixmap.access_align = 32; | |
179 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
180 | info->pixmap.scan_align = 1; | |
181 | ||
28c97730 | 182 | DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n", |
8be48d92 DA |
183 | fb->width, fb->height, |
184 | obj_priv->gtt_offset, fbo); | |
79e53945 | 185 | |
79e53945 JB |
186 | |
187 | mutex_unlock(&dev->struct_mutex); | |
6a9ee8af | 188 | vga_switcheroo_client_fb_set(dev->pdev, info); |
79e53945 JB |
189 | return 0; |
190 | ||
b4476f52 CW |
191 | out_unpin: |
192 | i915_gem_object_unpin(fbo); | |
79e53945 JB |
193 | out_unref: |
194 | drm_gem_object_unreference(fbo); | |
195 | mutex_unlock(&dev->struct_mutex); | |
196 | out: | |
197 | return ret; | |
198 | } | |
199 | ||
8be48d92 DA |
200 | static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, |
201 | struct drm_fb_helper_surface_size *sizes) | |
79e53945 | 202 | { |
8be48d92 | 203 | struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; |
38651674 | 204 | int new_fb = 0; |
79e53945 JB |
205 | int ret; |
206 | ||
8be48d92 DA |
207 | if (!helper->fb) { |
208 | ret = intelfb_create(ifbdev, sizes); | |
38651674 DA |
209 | if (ret) |
210 | return ret; | |
38651674 | 211 | new_fb = 1; |
38651674 | 212 | } |
38651674 | 213 | return new_fb; |
79e53945 | 214 | } |
79e53945 | 215 | |
4abe3520 DA |
216 | static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
217 | .gamma_set = intel_crtc_fb_gamma_set, | |
218 | .gamma_get = intel_crtc_fb_gamma_get, | |
219 | .fb_probe = intel_fb_find_or_create_single, | |
220 | }; | |
79e53945 | 221 | |
38651674 | 222 | int intel_fbdev_destroy(struct drm_device *dev, |
8be48d92 | 223 | struct intel_fbdev *ifbdev) |
79e53945 JB |
224 | { |
225 | struct fb_info *info; | |
38651674 | 226 | struct intel_framebuffer *ifb = &ifbdev->ifb; |
79e53945 | 227 | |
8be48d92 DA |
228 | if (ifbdev->helper.fbdev) { |
229 | info = ifbdev->helper.fbdev; | |
79e53945 JB |
230 | unregister_framebuffer(info); |
231 | iounmap(info->screen_base); | |
4abe3520 DA |
232 | if (info->cmap.len) |
233 | fb_dealloc_cmap(&info->cmap); | |
79e53945 JB |
234 | framebuffer_release(info); |
235 | } | |
236 | ||
4abe3520 | 237 | drm_fb_helper_fini(&ifbdev->helper); |
79e53945 | 238 | |
38651674 | 239 | drm_framebuffer_cleanup(&ifb->base); |
8be48d92 | 240 | if (ifb->obj) |
fbd41a7e | 241 | drm_gem_object_unreference(ifb->obj); |
79e53945 | 242 | |
79e53945 JB |
243 | return 0; |
244 | } | |
38651674 DA |
245 | |
246 | int intel_fbdev_init(struct drm_device *dev) | |
247 | { | |
8be48d92 DA |
248 | struct intel_fbdev *ifbdev; |
249 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5a79395b | 250 | int ret; |
8be48d92 DA |
251 | |
252 | ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); | |
253 | if (!ifbdev) | |
254 | return -ENOMEM; | |
255 | ||
256 | dev_priv->fbdev = ifbdev; | |
4abe3520 DA |
257 | ifbdev->helper.funcs = &intel_fb_helper_funcs; |
258 | ||
5a79395b CW |
259 | ret = drm_fb_helper_init(dev, &ifbdev->helper, |
260 | dev_priv->num_pipe, | |
261 | INTELFB_CONN_LIMIT); | |
262 | if (ret) { | |
263 | kfree(ifbdev); | |
264 | return ret; | |
265 | } | |
8be48d92 | 266 | |
0b4c0f3f | 267 | drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
4abe3520 | 268 | drm_fb_helper_initial_config(&ifbdev->helper, 32); |
79e53945 JB |
269 | return 0; |
270 | } | |
38651674 DA |
271 | |
272 | void intel_fbdev_fini(struct drm_device *dev) | |
273 | { | |
274 | drm_i915_private_t *dev_priv = dev->dev_private; | |
8be48d92 DA |
275 | if (!dev_priv->fbdev) |
276 | return; | |
277 | ||
38651674 | 278 | intel_fbdev_destroy(dev, dev_priv->fbdev); |
8be48d92 | 279 | kfree(dev_priv->fbdev); |
38651674 DA |
280 | dev_priv->fbdev = NULL; |
281 | } | |
79e53945 | 282 | MODULE_LICENSE("GPL and additional rights"); |
eb1f8e4f DA |
283 | |
284 | void intel_fb_output_poll_changed(struct drm_device *dev) | |
285 | { | |
286 | drm_i915_private_t *dev_priv = dev->dev_private; | |
287 | drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper); | |
288 | } |