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 <linux/module.h>
28 #include <linux/kernel.h>
29 #include <linux/errno.h>
30 #include <linux/string.h>
32 #include <linux/tty.h>
33 #include <linux/sysrq.h>
34 #include <linux/delay.h>
36 #include <linux/init.h>
37 #include <linux/screen_info.h>
38 #include <linux/vga_switcheroo.h>
43 #include "drm_crtc_helper.h"
44 #include "drm_fb_helper.h"
45 #include "nouveau_drv.h"
46 #include "nouveau_drm.h"
47 #include "nouveau_crtc.h"
48 #include "nouveau_fb.h"
49 #include "nouveau_fbcon.h"
50 #include "nouveau_dma.h"
53 nouveau_fbcon_sync(struct fb_info *info)
55 struct nouveau_fbdev *nfbdev = info->par;
56 struct drm_device *dev = nfbdev->dev;
57 struct drm_nouveau_private *dev_priv = dev->dev_private;
58 struct nouveau_channel *chan = dev_priv->channel;
61 if (!chan || !chan->accel_done ||
62 info->state != FBINFO_STATE_RUNNING ||
63 info->flags & FBINFO_HWACCEL_DISABLED)
66 if (RING_SPACE(chan, 4)) {
67 nouveau_fbcon_gpu_lockup(info);
71 BEGIN_RING(chan, 0, 0x0104, 1);
73 BEGIN_RING(chan, 0, 0x0100, 1);
75 nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy + 3, 0xffffffff);
79 for (i = 0; i < 100000; i++) {
80 if (!nouveau_bo_rd32(chan->notifier_bo, chan->m2mf_ntfy + 3)) {
88 nouveau_fbcon_gpu_lockup(info);
92 chan->accel_done = false;
96 static struct fb_ops nouveau_fbcon_ops = {
98 .fb_check_var = drm_fb_helper_check_var,
99 .fb_set_par = drm_fb_helper_set_par,
100 .fb_fillrect = cfb_fillrect,
101 .fb_copyarea = cfb_copyarea,
102 .fb_imageblit = cfb_imageblit,
103 .fb_sync = nouveau_fbcon_sync,
104 .fb_pan_display = drm_fb_helper_pan_display,
105 .fb_blank = drm_fb_helper_blank,
106 .fb_setcmap = drm_fb_helper_setcmap,
107 .fb_debug_enter = drm_fb_helper_debug_enter,
108 .fb_debug_leave = drm_fb_helper_debug_leave,
111 static struct fb_ops nv04_fbcon_ops = {
112 .owner = THIS_MODULE,
113 .fb_check_var = drm_fb_helper_check_var,
114 .fb_set_par = drm_fb_helper_set_par,
115 .fb_fillrect = nv04_fbcon_fillrect,
116 .fb_copyarea = nv04_fbcon_copyarea,
117 .fb_imageblit = nv04_fbcon_imageblit,
118 .fb_sync = nouveau_fbcon_sync,
119 .fb_pan_display = drm_fb_helper_pan_display,
120 .fb_blank = drm_fb_helper_blank,
121 .fb_setcmap = drm_fb_helper_setcmap,
122 .fb_debug_enter = drm_fb_helper_debug_enter,
123 .fb_debug_leave = drm_fb_helper_debug_leave,
126 static struct fb_ops nv50_fbcon_ops = {
127 .owner = THIS_MODULE,
128 .fb_check_var = drm_fb_helper_check_var,
129 .fb_set_par = drm_fb_helper_set_par,
130 .fb_fillrect = nv50_fbcon_fillrect,
131 .fb_copyarea = nv50_fbcon_copyarea,
132 .fb_imageblit = nv50_fbcon_imageblit,
133 .fb_sync = nouveau_fbcon_sync,
134 .fb_pan_display = drm_fb_helper_pan_display,
135 .fb_blank = drm_fb_helper_blank,
136 .fb_setcmap = drm_fb_helper_setcmap,
137 .fb_debug_enter = drm_fb_helper_debug_enter,
138 .fb_debug_leave = drm_fb_helper_debug_leave,
141 static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
144 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
146 nv_crtc->lut.r[regno] = red;
147 nv_crtc->lut.g[regno] = green;
148 nv_crtc->lut.b[regno] = blue;
151 static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
152 u16 *blue, int regno)
154 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
156 *red = nv_crtc->lut.r[regno];
157 *green = nv_crtc->lut.g[regno];
158 *blue = nv_crtc->lut.b[regno];
162 nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
164 struct fb_info *info = nfbdev->helper.fbdev;
165 struct fb_fillrect rect;
167 /* Clear the entire fbcon. The drm will program every connector
168 * with it's preferred mode. If the sizes differ, one display will
169 * quite likely have garbage around the console.
171 rect.dx = rect.dy = 0;
172 rect.width = info->var.xres_virtual;
173 rect.height = info->var.yres_virtual;
176 info->fbops->fb_fillrect(info, &rect);
180 nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
181 struct drm_fb_helper_surface_size *sizes)
183 struct drm_device *dev = nfbdev->dev;
184 struct drm_nouveau_private *dev_priv = dev->dev_private;
185 struct fb_info *info;
186 struct drm_framebuffer *fb;
187 struct nouveau_framebuffer *nouveau_fb;
188 struct nouveau_bo *nvbo;
189 struct drm_mode_fb_cmd mode_cmd;
190 struct pci_dev *pdev = dev->pdev;
191 struct device *device = &pdev->dev;
194 mode_cmd.width = sizes->surface_width;
195 mode_cmd.height = sizes->surface_height;
197 mode_cmd.bpp = sizes->surface_bpp;
198 mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3);
199 mode_cmd.pitch = roundup(mode_cmd.pitch, 256);
200 mode_cmd.depth = sizes->surface_depth;
202 size = mode_cmd.pitch * mode_cmd.height;
203 size = roundup(size, PAGE_SIZE);
205 ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM,
206 0, 0x0000, false, true, &nvbo);
208 NV_ERROR(dev, "failed to allocate framebuffer\n");
212 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
214 NV_ERROR(dev, "failed to pin fb: %d\n", ret);
215 nouveau_bo_ref(NULL, &nvbo);
219 ret = nouveau_bo_map(nvbo);
221 NV_ERROR(dev, "failed to map fb: %d\n", ret);
222 nouveau_bo_unpin(nvbo);
223 nouveau_bo_ref(NULL, &nvbo);
227 mutex_lock(&dev->struct_mutex);
229 info = framebuffer_alloc(0, device);
235 ret = fb_alloc_cmap(&info->cmap, 256, 0);
243 nouveau_framebuffer_init(dev, &nfbdev->nouveau_fb, &mode_cmd, nvbo);
245 nouveau_fb = &nfbdev->nouveau_fb;
246 fb = &nouveau_fb->base;
249 nfbdev->helper.fb = fb;
250 nfbdev->helper.fbdev = info;
252 strcpy(info->fix.id, "nouveaufb");
253 if (nouveau_nofbaccel)
254 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
256 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
257 FBINFO_HWACCEL_FILLRECT |
258 FBINFO_HWACCEL_IMAGEBLIT;
259 info->flags |= FBINFO_CAN_FORCE_OUTPUT;
260 info->fbops = &nouveau_fbcon_ops;
261 info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset -
262 dev_priv->vm_vram_base;
263 info->fix.smem_len = size;
265 info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
266 info->screen_size = size;
268 drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
269 drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height);
271 /* FIXME: we really shouldn't expose mmio space at all */
272 info->fix.mmio_start = pci_resource_start(pdev, 1);
273 info->fix.mmio_len = pci_resource_len(pdev, 1);
275 /* Set aperture base/size for vesafb takeover */
276 info->apertures = dev_priv->apertures;
277 if (!info->apertures) {
282 info->pixmap.size = 64*1024;
283 info->pixmap.buf_align = 8;
284 info->pixmap.access_align = 32;
285 info->pixmap.flags = FB_PIXMAP_SYSTEM;
286 info->pixmap.scan_align = 1;
288 if (dev_priv->channel && !nouveau_nofbaccel) {
289 switch (dev_priv->card_type) {
293 nv50_fbcon_accel_init(info);
294 info->fbops = &nv50_fbcon_ops;
297 nv04_fbcon_accel_init(info);
298 info->fbops = &nv04_fbcon_ops;
303 nouveau_fbcon_zfill(dev, nfbdev);
305 /* To allow resizeing without swapping buffers */
306 NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
307 nouveau_fb->base.width,
308 nouveau_fb->base.height,
309 nvbo->bo.offset, nvbo);
311 mutex_unlock(&dev->struct_mutex);
312 vga_switcheroo_client_fb_set(dev->pdev, info);
316 mutex_unlock(&dev->struct_mutex);
322 nouveau_fbcon_find_or_create_single(struct drm_fb_helper *helper,
323 struct drm_fb_helper_surface_size *sizes)
325 struct nouveau_fbdev *nfbdev = (struct nouveau_fbdev *)helper;
330 ret = nouveau_fbcon_create(nfbdev, sizes);
339 nouveau_fbcon_output_poll_changed(struct drm_device *dev)
341 struct drm_nouveau_private *dev_priv = dev->dev_private;
342 drm_fb_helper_hotplug_event(&dev_priv->nfbdev->helper);
346 nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *nfbdev)
348 struct nouveau_framebuffer *nouveau_fb = &nfbdev->nouveau_fb;
349 struct fb_info *info;
351 if (nfbdev->helper.fbdev) {
352 info = nfbdev->helper.fbdev;
353 unregister_framebuffer(info);
355 fb_dealloc_cmap(&info->cmap);
356 framebuffer_release(info);
359 if (nouveau_fb->nvbo) {
360 nouveau_bo_unmap(nouveau_fb->nvbo);
361 drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
362 nouveau_fb->nvbo = NULL;
364 drm_fb_helper_fini(&nfbdev->helper);
365 drm_framebuffer_cleanup(&nouveau_fb->base);
369 void nouveau_fbcon_gpu_lockup(struct fb_info *info)
371 struct nouveau_fbdev *nfbdev = info->par;
372 struct drm_device *dev = nfbdev->dev;
374 NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
375 info->flags |= FBINFO_HWACCEL_DISABLED;
378 static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
379 .gamma_set = nouveau_fbcon_gamma_set,
380 .gamma_get = nouveau_fbcon_gamma_get,
381 .fb_probe = nouveau_fbcon_find_or_create_single,
385 int nouveau_fbcon_init(struct drm_device *dev)
387 struct drm_nouveau_private *dev_priv = dev->dev_private;
388 struct nouveau_fbdev *nfbdev;
391 nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
396 dev_priv->nfbdev = nfbdev;
397 nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs;
399 ret = drm_fb_helper_init(dev, &nfbdev->helper,
400 nv_two_heads(dev) ? 2 : 1, 4);
406 drm_fb_helper_single_add_all_connectors(&nfbdev->helper);
407 drm_fb_helper_initial_config(&nfbdev->helper, 32);
411 void nouveau_fbcon_fini(struct drm_device *dev)
413 struct drm_nouveau_private *dev_priv = dev->dev_private;
415 if (!dev_priv->nfbdev)
418 nouveau_fbcon_destroy(dev, dev_priv->nfbdev);
419 kfree(dev_priv->nfbdev);
420 dev_priv->nfbdev = NULL;
423 void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
425 struct drm_nouveau_private *dev_priv = dev->dev_private;
427 dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags;
428 dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
431 void nouveau_fbcon_restore_accel(struct drm_device *dev)
433 struct drm_nouveau_private *dev_priv = dev->dev_private;
434 dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags;
437 void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
439 struct drm_nouveau_private *dev_priv = dev->dev_private;
440 fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state);
443 void nouveau_fbcon_zfill_all(struct drm_device *dev)
445 struct drm_nouveau_private *dev_priv = dev->dev_private;
446 nouveau_fbcon_zfill(dev, dev_priv->nfbdev);