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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; |
79e53945 | 65 | struct fb_info *info; |
79e53945 | 66 | struct drm_framebuffer *fb; |
79e53945 JB |
67 | struct drm_mode_fb_cmd mode_cmd; |
68 | struct drm_gem_object *fbo = NULL; | |
69 | struct drm_i915_gem_object *obj_priv; | |
70 | struct device *device = &dev->pdev->dev; | |
a6c45cf0 | 71 | int size, ret, mmio_bar = IS_GEN2(dev) ? 1 : 0; |
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; |
e7da40f0 | 81 | mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 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); | |
ac52bc56 | 86 | fbo = i915_gem_alloc_object(dev, size); |
79e53945 | 87 | if (!fbo) { |
1ae8c0a5 | 88 | DRM_ERROR("failed to allocate framebuffer\n"); |
79e53945 JB |
89 | ret = -ENOMEM; |
90 | goto out; | |
91 | } | |
23010e43 | 92 | obj_priv = to_intel_bo(fbo); |
79e53945 JB |
93 | |
94 | mutex_lock(&dev->struct_mutex); | |
95 | ||
7213342d | 96 | /* Flush everything out, we'll be doing GTT only from now on */ |
48b956c5 | 97 | ret = intel_pin_and_fence_fb_obj(dev, fbo, false); |
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 | |
cce13ff7 CW |
111 | ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, fbo); |
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 | ||
4410f391 | 125 | /* setup aperture base/size for vesafb takeover */ |
1471ca9a MS |
126 | info->apertures = alloc_apertures(1); |
127 | if (!info->apertures) { | |
128 | ret = -ENOMEM; | |
129 | goto out_unpin; | |
130 | } | |
131 | info->apertures->ranges[0].base = dev->mode_config.fb_base; | |
a6c45cf0 | 132 | if (!IS_GEN2(dev)) |
1471ca9a | 133 | info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 2); |
4410f391 | 134 | else |
1471ca9a | 135 | info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0); |
4410f391 | 136 | |
79e53945 JB |
137 | info->fix.smem_start = dev->mode_config.fb_base + obj_priv->gtt_offset; |
138 | info->fix.smem_len = size; | |
139 | ||
79e53945 JB |
140 | info->screen_base = ioremap_wc(dev->agp->base + obj_priv->gtt_offset, |
141 | size); | |
142 | if (!info->screen_base) { | |
143 | ret = -ENOSPC; | |
b4476f52 | 144 | goto out_unpin; |
79e53945 | 145 | } |
4abe3520 DA |
146 | |
147 | ret = fb_alloc_cmap(&info->cmap, 256, 0); | |
148 | if (ret) { | |
149 | ret = -ENOMEM; | |
150 | goto out_unpin; | |
151 | } | |
79e53945 JB |
152 | info->screen_size = size; |
153 | ||
154 | // memset(info->screen_base, 0, size); | |
155 | ||
068143d3 | 156 | drm_fb_helper_fill_fix(info, fb->pitch, fb->depth); |
38651674 | 157 | drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height); |
79e53945 JB |
158 | |
159 | /* FIXME: we really shouldn't expose mmio space at all */ | |
160 | info->fix.mmio_start = pci_resource_start(dev->pdev, mmio_bar); | |
161 | info->fix.mmio_len = pci_resource_len(dev->pdev, mmio_bar); | |
162 | ||
163 | info->pixmap.size = 64*1024; | |
164 | info->pixmap.buf_align = 8; | |
165 | info->pixmap.access_align = 32; | |
166 | info->pixmap.flags = FB_PIXMAP_SYSTEM; | |
167 | info->pixmap.scan_align = 1; | |
168 | ||
28c97730 | 169 | DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n", |
8be48d92 DA |
170 | fb->width, fb->height, |
171 | obj_priv->gtt_offset, fbo); | |
79e53945 | 172 | |
79e53945 JB |
173 | |
174 | mutex_unlock(&dev->struct_mutex); | |
6a9ee8af | 175 | vga_switcheroo_client_fb_set(dev->pdev, info); |
79e53945 JB |
176 | return 0; |
177 | ||
b4476f52 CW |
178 | out_unpin: |
179 | i915_gem_object_unpin(fbo); | |
79e53945 JB |
180 | out_unref: |
181 | drm_gem_object_unreference(fbo); | |
182 | mutex_unlock(&dev->struct_mutex); | |
183 | out: | |
184 | return ret; | |
185 | } | |
186 | ||
8be48d92 DA |
187 | static int intel_fb_find_or_create_single(struct drm_fb_helper *helper, |
188 | struct drm_fb_helper_surface_size *sizes) | |
79e53945 | 189 | { |
8be48d92 | 190 | struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper; |
38651674 | 191 | int new_fb = 0; |
79e53945 JB |
192 | int ret; |
193 | ||
8be48d92 DA |
194 | if (!helper->fb) { |
195 | ret = intelfb_create(ifbdev, sizes); | |
38651674 DA |
196 | if (ret) |
197 | return ret; | |
38651674 | 198 | new_fb = 1; |
38651674 | 199 | } |
38651674 | 200 | return new_fb; |
79e53945 | 201 | } |
79e53945 | 202 | |
4abe3520 DA |
203 | static struct drm_fb_helper_funcs intel_fb_helper_funcs = { |
204 | .gamma_set = intel_crtc_fb_gamma_set, | |
205 | .gamma_get = intel_crtc_fb_gamma_get, | |
206 | .fb_probe = intel_fb_find_or_create_single, | |
207 | }; | |
79e53945 | 208 | |
7b4f3990 CW |
209 | static void intel_fbdev_destroy(struct drm_device *dev, |
210 | struct intel_fbdev *ifbdev) | |
79e53945 JB |
211 | { |
212 | struct fb_info *info; | |
38651674 | 213 | struct intel_framebuffer *ifb = &ifbdev->ifb; |
79e53945 | 214 | |
8be48d92 DA |
215 | if (ifbdev->helper.fbdev) { |
216 | info = ifbdev->helper.fbdev; | |
79e53945 JB |
217 | unregister_framebuffer(info); |
218 | iounmap(info->screen_base); | |
4abe3520 DA |
219 | if (info->cmap.len) |
220 | fb_dealloc_cmap(&info->cmap); | |
79e53945 JB |
221 | framebuffer_release(info); |
222 | } | |
223 | ||
4abe3520 | 224 | drm_fb_helper_fini(&ifbdev->helper); |
79e53945 | 225 | |
38651674 | 226 | drm_framebuffer_cleanup(&ifb->base); |
29d08b3e | 227 | if (ifb->obj) { |
7b4f3990 | 228 | drm_gem_object_unreference_unlocked(ifb->obj); |
dab8dcfa | 229 | ifb->obj = NULL; |
29d08b3e | 230 | } |
79e53945 | 231 | } |
38651674 DA |
232 | |
233 | int intel_fbdev_init(struct drm_device *dev) | |
234 | { | |
8be48d92 DA |
235 | struct intel_fbdev *ifbdev; |
236 | drm_i915_private_t *dev_priv = dev->dev_private; | |
5a79395b | 237 | int ret; |
8be48d92 DA |
238 | |
239 | ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); | |
240 | if (!ifbdev) | |
241 | return -ENOMEM; | |
242 | ||
243 | dev_priv->fbdev = ifbdev; | |
4abe3520 DA |
244 | ifbdev->helper.funcs = &intel_fb_helper_funcs; |
245 | ||
5a79395b CW |
246 | ret = drm_fb_helper_init(dev, &ifbdev->helper, |
247 | dev_priv->num_pipe, | |
248 | INTELFB_CONN_LIMIT); | |
249 | if (ret) { | |
250 | kfree(ifbdev); | |
251 | return ret; | |
252 | } | |
8be48d92 | 253 | |
0b4c0f3f | 254 | drm_fb_helper_single_add_all_connectors(&ifbdev->helper); |
4abe3520 | 255 | drm_fb_helper_initial_config(&ifbdev->helper, 32); |
79e53945 JB |
256 | return 0; |
257 | } | |
38651674 DA |
258 | |
259 | void intel_fbdev_fini(struct drm_device *dev) | |
260 | { | |
261 | drm_i915_private_t *dev_priv = dev->dev_private; | |
8be48d92 DA |
262 | if (!dev_priv->fbdev) |
263 | return; | |
264 | ||
38651674 | 265 | intel_fbdev_destroy(dev, dev_priv->fbdev); |
8be48d92 | 266 | kfree(dev_priv->fbdev); |
38651674 DA |
267 | dev_priv->fbdev = NULL; |
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 | } |