2 * Copyright © 2007 David Airlie
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:
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
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.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include "opt_syscons.h"
31 #include <dev/drm2/drmP.h>
32 #include <dev/drm2/drm.h>
33 #include <dev/drm2/drm_crtc.h>
34 #include <dev/drm2/drm_fb_helper.h>
35 #include <dev/drm2/i915/i915_drm.h>
36 #include <dev/drm2/i915/i915_drv.h>
37 #include <dev/drm2/i915/intel_drv.h>
39 static int intelfb_create(struct intel_fbdev *ifbdev,
40 struct drm_fb_helper_surface_size *sizes)
42 struct drm_device *dev = ifbdev->helper.dev;
44 struct drm_i915_private *dev_priv = dev->dev_private;
47 struct drm_framebuffer *fb;
48 struct drm_mode_fb_cmd2 mode_cmd;
49 struct drm_i915_gem_object *obj;
52 /* we don't do packed 24bpp */
53 if (sizes->surface_bpp == 24)
54 sizes->surface_bpp = 32;
56 mode_cmd.width = sizes->surface_width;
57 mode_cmd.height = sizes->surface_height;
59 mode_cmd.pitches[0] = roundup2(mode_cmd.width * ((sizes->surface_bpp + 7) /
61 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
62 sizes->surface_depth);
64 size = mode_cmd.pitches[0] * mode_cmd.height;
65 size = roundup2(size, PAGE_SIZE);
66 obj = i915_gem_alloc_object(dev, size);
68 DRM_ERROR("failed to allocate framebuffer\n");
75 /* Flush everything out, we'll be doing GTT only from now on */
76 ret = intel_pin_and_fence_fb_obj(dev, obj, false);
78 DRM_ERROR("failed to pin fb: %d\n", ret);
83 info = framebuffer_alloc(0, device);
91 info = malloc(sizeof(struct fb_info), DRM_MEM_KMS, M_WAITOK | M_ZERO);
93 info->fb_bpp = sizes->surface_bpp;
94 info->fb_width = sizes->fb_width;
95 info->fb_height = sizes->fb_height;
96 info->fb_pbase = dev->agp->base + obj->gtt_offset;
97 info->fb_vbase = (vm_offset_t)pmap_mapdev_attr(info->fb_pbase, size,
102 ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
106 fb = &ifbdev->ifb.base;
108 ifbdev->helper.fb = fb;
109 ifbdev->helper.fbdev = info;
112 strcpy(info->fix.id, "inteldrmfb");
114 info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
115 info->fbops = &intelfb_ops;
117 ret = fb_alloc_cmap(&info->cmap, 256, 0);
122 /* setup aperture base/size for vesafb takeover */
123 info->apertures = alloc_apertures(1);
124 if (!info->apertures) {
128 info->apertures->ranges[0].base = dev->mode_config.fb_base;
129 info->apertures->ranges[0].size =
130 dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
132 info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
133 info->fix.smem_len = size;
135 info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
136 if (!info->screen_base) {
140 info->screen_size = size;
142 // memset(info->screen_base, 0, size);
144 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
145 drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
147 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
149 DRM_DEBUG_KMS("allocated %dx%d (s %dbits) fb: 0x%08x, bo %p\n",
150 fb->width, fb->height, fb->depth,
151 obj->gtt_offset, obj);
157 vga_switcheroo_client_fb_set(dev->pdev, info);
162 i915_gem_object_unpin(obj);
164 drm_gem_object_unreference(&obj->base);
170 static int intel_fb_find_or_create_single(struct drm_fb_helper *helper,
171 struct drm_fb_helper_surface_size *sizes)
173 struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
178 ret = intelfb_create(ifbdev, sizes);
186 static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
187 .gamma_set = intel_crtc_fb_gamma_set,
188 .gamma_get = intel_crtc_fb_gamma_get,
189 .fb_probe = intel_fb_find_or_create_single,
192 static void intel_fbdev_destroy(struct drm_device *dev,
193 struct intel_fbdev *ifbdev)
196 struct fb_info *info;
198 struct intel_framebuffer *ifb = &ifbdev->ifb;
201 if (ifbdev->helper.fbdev) {
202 info = ifbdev->helper.fbdev;
203 unregister_framebuffer(info);
204 iounmap(info->screen_base);
206 fb_dealloc_cmap(&info->cmap);
207 framebuffer_release(info);
211 drm_fb_helper_fini(&ifbdev->helper);
213 drm_framebuffer_cleanup(&ifb->base);
215 drm_gem_object_unreference_unlocked(&ifb->obj->base);
221 extern int sc_txtmouse_no_retrace_wait;
224 int intel_fbdev_init(struct drm_device *dev)
226 struct intel_fbdev *ifbdev;
227 drm_i915_private_t *dev_priv = dev->dev_private;
230 ifbdev = malloc(sizeof(struct intel_fbdev), DRM_MEM_KMS,
233 dev_priv->fbdev = ifbdev;
234 ifbdev->helper.funcs = &intel_fb_helper_funcs;
236 ret = drm_fb_helper_init(dev, &ifbdev->helper,
240 free(ifbdev, DRM_MEM_KMS);
244 drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
245 drm_fb_helper_initial_config(&ifbdev->helper, 32);
247 sc_txtmouse_no_retrace_wait = 1;
252 void intel_fbdev_fini(struct drm_device *dev)
254 drm_i915_private_t *dev_priv = dev->dev_private;
255 if (!dev_priv->fbdev)
258 intel_fbdev_destroy(dev, dev_priv->fbdev);
259 free(dev_priv->fbdev, DRM_MEM_KMS);
260 dev_priv->fbdev = NULL;
263 void intel_fb_output_poll_changed(struct drm_device *dev)
265 drm_i915_private_t *dev_priv = dev->dev_private;
266 drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
269 void intel_fb_restore_mode(struct drm_device *dev)
272 drm_i915_private_t *dev_priv = dev->dev_private;
273 struct drm_mode_config *config = &dev->mode_config;
274 struct drm_plane *plane;
276 sx_xlock(&dev->mode_config.mutex);
278 ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
280 DRM_DEBUG("failed to restore crtc mode\n");
282 /* Be sure to shut off any planes that may be active */
283 list_for_each_entry(plane, &config->plane_list, head)
284 plane->funcs->disable_plane(plane);
286 sx_xunlock(&dev->mode_config.mutex);