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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, |
79e53945 JB |
64 | }; |
65 | ||
8be48d92 DA |
66 | static int intelfb_create(struct intel_fbdev *ifbdev, |
67 | struct drm_fb_helper_surface_size *sizes) | |
79e53945 | 68 | { |
8be48d92 | 69 | struct drm_device *dev = ifbdev->helper.dev; |
79e53945 | 70 | struct fb_info *info; |
79e53945 | 71 | struct drm_framebuffer *fb; |
79e53945 JB |
72 | struct drm_mode_fb_cmd mode_cmd; |
73 | struct drm_gem_object *fbo = NULL; | |
74 | struct drm_i915_gem_object *obj_priv; | |
75 | struct device *device = &dev->pdev->dev; | |
76 | int size, ret, mmio_bar = IS_I9XX(dev) ? 0 : 1; | |
77 | ||
b8c00ac5 | 78 | /* we don't do packed 24bpp */ |
38651674 DA |
79 | if (sizes->surface_bpp == 24) |
80 | sizes->surface_bpp = 32; | |
b8c00ac5 | 81 | |
38651674 DA |
82 | mode_cmd.width = sizes->surface_width; |
83 | mode_cmd.height = sizes->surface_height; | |
79e53945 | 84 | |
38651674 | 85 | mode_cmd.bpp = sizes->surface_bpp; |
e7da40f0 | 86 | mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64); |
38651674 | 87 | mode_cmd.depth = sizes->surface_depth; |
79e53945 JB |
88 | |
89 | size = mode_cmd.pitch * mode_cmd.height; | |
90 | size = ALIGN(size, PAGE_SIZE); | |
ac52bc56 | 91 | fbo = i915_gem_alloc_object(dev, size); |
79e53945 | 92 | if (!fbo) { |
1ae8c0a5 | 93 | DRM_ERROR("failed to allocate framebuffer\n"); |
79e53945 JB |
94 | ret = -ENOMEM; |
95 | goto out; | |
96 | } | |
23010e43 | 97 | obj_priv = to_intel_bo(fbo); |
79e53945 JB |
98 | |
99 | mutex_lock(&dev->struct_mutex); | |
100 | ||
fd2e8ea5 | 101 | ret = i915_gem_object_pin(fbo, 64*1024); |
79e53945 JB |
102 | if (ret) { |
103 | DRM_ERROR("failed to pin fb: %d\n", ret); | |
104 | goto out_unref; | |
105 | } | |
106 | ||
107 | /* Flush everything out, we'll be doing GTT only from now on */ | |
108 | i915_gem_object_set_to_gtt_domain(fbo, 1); | |
109 | ||
8be48d92 | 110 | info = framebuffer_alloc(0, device); |
79e53945 JB |
111 | if (!info) { |
112 | ret = -ENOMEM; | |
b4476f52 | 113 | goto out_unpin; |
79e53945 JB |
114 | } |
115 | ||
8be48d92 | 116 | info->par = ifbdev; |
79e53945 | 117 | |
38651674 | 118 | intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, fbo); |
79e53945 | 119 | |
38651674 | 120 | fb = &ifbdev->ifb.base; |
79e53945 | 121 | |
38651674 DA |
122 | ifbdev->helper.fb = fb; |
123 | ifbdev->helper.fbdev = info; | |
785b93ef | 124 | |
79e53945 | 125 | strcpy(info->fix.id, "inteldrmfb"); |
79e53945 JB |
126 | |
127 | info->flags = FBINFO_DEFAULT; | |
79e53945 JB |
128 | info->fbops = &intelfb_ops; |
129 | ||
4410f391 DA |
130 | /* setup aperture base/size for vesafb takeover */ |
131 | info->aperture_base = dev->mode_config.fb_base; | |
132 | if (IS_I9XX(dev)) | |
133 | info->aperture_size = pci_resource_len(dev->pdev, 2); | |
134 | else | |
135 | info->aperture_size = pci_resource_len(dev->pdev, 0); | |
136 | ||
79e53945 JB |
137 | info->fix.smem_start = dev->mode_config.fb_base + obj_priv->gtt_offset; |
138 | info->fix.smem_len = size; | |
139 | ||
140 | info->flags = FBINFO_DEFAULT; | |
141 | ||
142 | info->screen_base = ioremap_wc(dev->agp->base + obj_priv->gtt_offset, | |
143 | size); | |
144 | if (!info->screen_base) { | |
145 | ret = -ENOSPC; | |
b4476f52 | 146 | goto out_unpin; |
79e53945 | 147 | } |
4abe3520 DA |
148 | |
149 | ret = fb_alloc_cmap(&info->cmap, 256, 0); | |
150 | if (ret) { | |
151 | ret = -ENOMEM; | |
152 | goto out_unpin; | |
153 | } | |
79e53945 JB |
154 | info->screen_size = size; |
155 | ||
156 | // memset(info->screen_base, 0, size); | |
157 | ||
068143d3 | 158 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); |
38651674 | 159 | drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
79e53945 JB |
160 | |
161 | /* FIXME: we really shouldn't expose mmio space at all */ | |
162 | info->fix.mmio_start = pci_resource_start(dev->pdev, mmio_bar); | |
163 | info->fix.mmio_len = pci_resource_len(dev->pdev, mmio_bar); | |
164 | ||
165 | info->pixmap.size = 64*1024; | |
166 | info->pixmap.buf_align = 8; | |
167 | info->pixmap.access_align = 32; | |
168 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
169 | info->pixmap.scan_align = 1; | |
170 | ||
28c97730 | 171 | DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n", |
8be48d92 DA |
172 | fb->width, fb->height, |
173 | obj_priv->gtt_offset, fbo); | |
79e53945 | 174 | |
79e53945 JB |
175 | |
176 | mutex_unlock(&dev->struct_mutex); | |
6a9ee8af | 177 | vga_switcheroo_client_fb_set(dev->pdev, info); |
79e53945 JB |
178 | return 0; |
179 | ||
b4476f52 CW |
180 | out_unpin: |
181 | i915_gem_object_unpin(fbo); | |
79e53945 JB |
182 | out_unref: |
183 | drm_gem_object_unreference(fbo); | |
184 | mutex_unlock(&dev->struct_mutex); | |
185 | out: | |
186 | return ret; | |
187 | } | |
188 | ||
8be48d92 DA |
189 | static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, |
190 | struct drm_fb_helper_surface_size *sizes) | |
79e53945 | 191 | { |
8be48d92 | 192 | struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; |
38651674 | 193 | int new_fb = 0; |
79e53945 JB |
194 | int ret; |
195 | ||
8be48d92 DA |
196 | if (!helper->fb) { |
197 | ret = intelfb_create(ifbdev, sizes); | |
38651674 DA |
198 | if (ret) |
199 | return ret; | |
38651674 | 200 | new_fb = 1; |
38651674 | 201 | } |
38651674 | 202 | return new_fb; |
79e53945 | 203 | } |
79e53945 | 204 | |
4abe3520 | 205 | void intelfb_hotplug(struct drm_device *dev, bool polled) |
79e53945 | 206 | { |
4abe3520 DA |
207 | drm_i915_private_t *dev_priv = dev->dev_private; |
208 | drm_helper_fb_hpd_irq_event(&dev_priv->fbdev->helper); | |
79e53945 | 209 | } |
79e53945 | 210 | |
4abe3520 DA |
211 | static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
212 | .gamma_set = intel_crtc_fb_gamma_set, | |
213 | .gamma_get = intel_crtc_fb_gamma_get, | |
214 | .fb_probe = intel_fb_find_or_create_single, | |
215 | }; | |
79e53945 | 216 | |
38651674 | 217 | int intel_fbdev_destroy(struct drm_device *dev, |
8be48d92 | 218 | struct intel_fbdev *ifbdev) |
79e53945 JB |
219 | { |
220 | struct fb_info *info; | |
38651674 | 221 | struct intel_framebuffer *ifb = &ifbdev->ifb; |
79e53945 | 222 | |
8be48d92 DA |
223 | if (ifbdev->helper.fbdev) { |
224 | info = ifbdev->helper.fbdev; | |
79e53945 JB |
225 | unregister_framebuffer(info); |
226 | iounmap(info->screen_base); | |
4abe3520 DA |
227 | if (info->cmap.len) |
228 | fb_dealloc_cmap(&info->cmap); | |
79e53945 JB |
229 | framebuffer_release(info); |
230 | } | |
231 | ||
4abe3520 | 232 | drm_fb_helper_fini(&ifbdev->helper); |
79e53945 | 233 | |
38651674 | 234 | drm_framebuffer_cleanup(&ifb->base); |
8be48d92 DA |
235 | if (ifb->obj) |
236 | drm_gem_object_unreference_unlocked(ifb->obj); | |
79e53945 | 237 | |
79e53945 JB |
238 | return 0; |
239 | } | |
38651674 DA |
240 | |
241 | int intel_fbdev_init(struct drm_device *dev) | |
242 | { | |
8be48d92 DA |
243 | struct intel_fbdev *ifbdev; |
244 | drm_i915_private_t *dev_priv = dev->dev_private; | |
245 | ||
246 | ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); | |
247 | if (!ifbdev) | |
248 | return -ENOMEM; | |
249 | ||
250 | dev_priv->fbdev = ifbdev; | |
4abe3520 DA |
251 | ifbdev->helper.funcs = &intel_fb_helper_funcs; |
252 | ||
253 | drm_fb_helper_init(dev, &ifbdev->helper, 2, | |
254 | INTELFB_CONN_LIMIT, false); | |
8be48d92 | 255 | |
0b4c0f3f | 256 | drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
4abe3520 | 257 | drm_fb_helper_initial_config(&ifbdev->helper, 32); |
79e53945 JB |
258 | return 0; |
259 | } | |
38651674 DA |
260 | |
261 | void intel_fbdev_fini(struct drm_device *dev) | |
262 | { | |
263 | drm_i915_private_t *dev_priv = dev->dev_private; | |
8be48d92 DA |
264 | if (!dev_priv->fbdev) |
265 | return; | |
266 | ||
38651674 | 267 | intel_fbdev_destroy(dev, dev_priv->fbdev); |
8be48d92 | 268 | kfree(dev_priv->fbdev); |
38651674 DA |
269 | dev_priv->fbdev = NULL; |
270 | } | |
79e53945 | 271 | MODULE_LICENSE("GPL and additional rights"); |