drm/i915: use new fb debug hooks
[sfrench/cifs-2.6.git] / drivers / gpu / drm / i915 / intel_fb.c
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>
33 #include <linux/sysrq.h>
34 #include <linux/delay.h>
35 #include <linux/fb.h>
36 #include <linux/init.h>
37 #include <linux/vga_switcheroo.h>
38
39 #include "drmP.h"
40 #include "drm.h"
41 #include "drm_crtc.h"
42 #include "drm_fb_helper.h"
43 #include "intel_drv.h"
44 #include "i915_drm.h"
45 #include "i915_drv.h"
46
47 struct intel_fbdev {
48         struct drm_fb_helper helper;
49         struct intel_framebuffer ifb;
50         struct list_head fbdev_list;
51         struct drm_display_mode *our_mode;
52 };
53
54 static struct fb_ops intelfb_ops = {
55         .owner = THIS_MODULE,
56         .fb_check_var = drm_fb_helper_check_var,
57         .fb_set_par = drm_fb_helper_set_par,
58         .fb_fillrect = cfb_fillrect,
59         .fb_copyarea = cfb_copyarea,
60         .fb_imageblit = cfb_imageblit,
61         .fb_pan_display = drm_fb_helper_pan_display,
62         .fb_blank = drm_fb_helper_blank,
63         .fb_setcmap = drm_fb_helper_setcmap,
64         .fb_debug_enter = drm_fb_helper_debug_enter,
65         .fb_debug_leave = drm_fb_helper_debug_leave,
66 };
67
68 static int intelfb_create(struct intel_fbdev *ifbdev,
69                           struct drm_fb_helper_surface_size *sizes)
70 {
71         struct drm_device *dev = ifbdev->helper.dev;
72         struct fb_info *info;
73         struct drm_framebuffer *fb;
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
80         /* we don't do packed 24bpp */
81         if (sizes->surface_bpp == 24)
82                 sizes->surface_bpp = 32;
83
84         mode_cmd.width = sizes->surface_width;
85         mode_cmd.height = sizes->surface_height;
86
87         mode_cmd.bpp = sizes->surface_bpp;
88         mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 1) / 8), 64);
89         mode_cmd.depth = sizes->surface_depth;
90
91         size = mode_cmd.pitch * mode_cmd.height;
92         size = ALIGN(size, PAGE_SIZE);
93         fbo = i915_gem_alloc_object(dev, size);
94         if (!fbo) {
95                 DRM_ERROR("failed to allocate framebuffer\n");
96                 ret = -ENOMEM;
97                 goto out;
98         }
99         obj_priv = to_intel_bo(fbo);
100
101         mutex_lock(&dev->struct_mutex);
102
103         ret = intel_pin_and_fence_fb_obj(dev, fbo);
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 */
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         }
115
116         info = framebuffer_alloc(0, device);
117         if (!info) {
118                 ret = -ENOMEM;
119                 goto out_unpin;
120         }
121
122         info->par = ifbdev;
123
124         intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, fbo);
125
126         fb = &ifbdev->ifb.base;
127
128         ifbdev->helper.fb = fb;
129         ifbdev->helper.fbdev = info;
130
131         strcpy(info->fix.id, "inteldrmfb");
132
133         info->flags = FBINFO_DEFAULT;
134         info->fbops = &intelfb_ops;
135
136         /* setup aperture base/size for vesafb takeover */
137         info->apertures = alloc_apertures(1);
138         if (!info->apertures) {
139                 ret = -ENOMEM;
140                 goto out_unpin;
141         }
142         info->apertures->ranges[0].base = dev->mode_config.fb_base;
143         if (IS_I9XX(dev))
144                 info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 2);
145         else
146                 info->apertures->ranges[0].size = pci_resource_len(dev->pdev, 0);
147
148         info->fix.smem_start = dev->mode_config.fb_base + obj_priv->gtt_offset;
149         info->fix.smem_len = size;
150
151         info->flags = FBINFO_DEFAULT;
152
153         info->screen_base = ioremap_wc(dev->agp->base + obj_priv->gtt_offset,
154                                        size);
155         if (!info->screen_base) {
156                 ret = -ENOSPC;
157                 goto out_unpin;
158         }
159
160         ret = fb_alloc_cmap(&info->cmap, 256, 0);
161         if (ret) {
162                 ret = -ENOMEM;
163                 goto out_unpin;
164         }
165         info->screen_size = size;
166
167 //      memset(info->screen_base, 0, size);
168
169         drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
170         drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
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
182         DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
183                       fb->width, fb->height,
184                       obj_priv->gtt_offset, fbo);
185
186
187         mutex_unlock(&dev->struct_mutex);
188         vga_switcheroo_client_fb_set(dev->pdev, info);
189         return 0;
190
191 out_unpin:
192         i915_gem_object_unpin(fbo);
193 out_unref:
194         drm_gem_object_unreference(fbo);
195         mutex_unlock(&dev->struct_mutex);
196 out:
197         return ret;
198 }
199
200 static int intel_fb_find_or_create_single(struct drm_fb_helper *helper,
201                                           struct drm_fb_helper_surface_size *sizes)
202 {
203         struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
204         int new_fb = 0;
205         int ret;
206
207         if (!helper->fb) {
208                 ret = intelfb_create(ifbdev, sizes);
209                 if (ret)
210                         return ret;
211                 new_fb = 1;
212         }
213         return new_fb;
214 }
215
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 };
221
222 int intel_fbdev_destroy(struct drm_device *dev,
223                         struct intel_fbdev *ifbdev)
224 {
225         struct fb_info *info;
226         struct intel_framebuffer *ifb = &ifbdev->ifb;
227
228         if (ifbdev->helper.fbdev) {
229                 info = ifbdev->helper.fbdev;
230                 unregister_framebuffer(info);
231                 iounmap(info->screen_base);
232                 if (info->cmap.len)
233                         fb_dealloc_cmap(&info->cmap);
234                 framebuffer_release(info);
235         }
236
237         drm_fb_helper_fini(&ifbdev->helper);
238
239         drm_framebuffer_cleanup(&ifb->base);
240         if (ifb->obj)
241                 drm_gem_object_unreference(ifb->obj);
242
243         return 0;
244 }
245
246 int intel_fbdev_init(struct drm_device *dev)
247 {
248         struct intel_fbdev *ifbdev;
249         drm_i915_private_t *dev_priv = dev->dev_private;
250         int ret;
251
252         ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
253         if (!ifbdev)
254                 return -ENOMEM;
255
256         dev_priv->fbdev = ifbdev;
257         ifbdev->helper.funcs = &intel_fb_helper_funcs;
258
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         }
266
267         drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
268         drm_fb_helper_initial_config(&ifbdev->helper, 32);
269         return 0;
270 }
271
272 void intel_fbdev_fini(struct drm_device *dev)
273 {
274         drm_i915_private_t *dev_priv = dev->dev_private;
275         if (!dev_priv->fbdev)
276                 return;
277
278         intel_fbdev_destroy(dev, dev_priv->fbdev);
279         kfree(dev_priv->fbdev);
280         dev_priv->fbdev = NULL;
281 }
282 MODULE_LICENSE("GPL and additional rights");
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 }