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/slab.h>
34 #include <linux/sysrq.h>
35 #include <linux/delay.h>
37 #include <linux/init.h>
38 #include <linux/screen_info.h>
39 #include <linux/vga_switcheroo.h>
44 #include "drm_crtc_helper.h"
45 #include "drm_fb_helper.h"
46 #include "nouveau_drv.h"
47 #include "nouveau_drm.h"
48 #include "nouveau_crtc.h"
49 #include "nouveau_fb.h"
50 #include "nouveau_fbcon.h"
51 #include "nouveau_dma.h"
54 nouveau_fbcon_sync(struct fb_info *info)
56 struct nouveau_fbcon_par *par = info->par;
57 struct drm_device *dev = par->dev;
58 struct drm_nouveau_private *dev_priv = dev->dev_private;
59 struct nouveau_channel *chan = dev_priv->channel;
62 if (!chan || !chan->accel_done ||
63 info->state != FBINFO_STATE_RUNNING ||
64 info->flags & FBINFO_HWACCEL_DISABLED)
67 if (RING_SPACE(chan, 4)) {
68 nouveau_fbcon_gpu_lockup(info);
72 BEGIN_RING(chan, 0, 0x0104, 1);
74 BEGIN_RING(chan, 0, 0x0100, 1);
76 nouveau_bo_wr32(chan->notifier_bo, chan->m2mf_ntfy + 3, 0xffffffff);
80 for (i = 0; i < 100000; i++) {
81 if (!nouveau_bo_rd32(chan->notifier_bo, chan->m2mf_ntfy + 3)) {
89 nouveau_fbcon_gpu_lockup(info);
93 chan->accel_done = false;
97 static struct fb_ops nouveau_fbcon_ops = {
99 .fb_check_var = drm_fb_helper_check_var,
100 .fb_set_par = drm_fb_helper_set_par,
101 .fb_setcolreg = drm_fb_helper_setcolreg,
102 .fb_fillrect = cfb_fillrect,
103 .fb_copyarea = cfb_copyarea,
104 .fb_imageblit = cfb_imageblit,
105 .fb_sync = nouveau_fbcon_sync,
106 .fb_pan_display = drm_fb_helper_pan_display,
107 .fb_blank = drm_fb_helper_blank,
108 .fb_setcmap = drm_fb_helper_setcmap,
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_setcolreg = drm_fb_helper_setcolreg,
116 .fb_fillrect = nv04_fbcon_fillrect,
117 .fb_copyarea = nv04_fbcon_copyarea,
118 .fb_imageblit = nv04_fbcon_imageblit,
119 .fb_sync = nouveau_fbcon_sync,
120 .fb_pan_display = drm_fb_helper_pan_display,
121 .fb_blank = drm_fb_helper_blank,
122 .fb_setcmap = drm_fb_helper_setcmap,
125 static struct fb_ops nv50_fbcon_ops = {
126 .owner = THIS_MODULE,
127 .fb_check_var = drm_fb_helper_check_var,
128 .fb_set_par = drm_fb_helper_set_par,
129 .fb_setcolreg = drm_fb_helper_setcolreg,
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,
139 static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
142 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
144 nv_crtc->lut.r[regno] = red;
145 nv_crtc->lut.g[regno] = green;
146 nv_crtc->lut.b[regno] = blue;
149 static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
150 u16 *blue, int regno)
152 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
154 *red = nv_crtc->lut.r[regno];
155 *green = nv_crtc->lut.g[regno];
156 *blue = nv_crtc->lut.b[regno];
159 static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
160 .gamma_set = nouveau_fbcon_gamma_set,
161 .gamma_get = nouveau_fbcon_gamma_get
164 #if defined(__i386__) || defined(__x86_64__)
166 nouveau_fbcon_has_vesafb_or_efifb(struct drm_device *dev)
168 struct pci_dev *pdev = dev->pdev;
171 if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB &&
172 screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
175 if (screen_info.lfb_base < pci_resource_start(pdev, 1))
178 if (screen_info.lfb_base + screen_info.lfb_size >=
179 pci_resource_start(pdev, 1) + pci_resource_len(pdev, 1))
185 if (pci_resource_len(pdev, ramin) == 0) {
187 if (pci_resource_len(pdev, ramin) == 0)
191 if (screen_info.lfb_base < pci_resource_start(pdev, ramin))
194 if (screen_info.lfb_base + screen_info.lfb_size >=
195 pci_resource_start(pdev, ramin) + pci_resource_len(pdev, ramin))
203 nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbcon_par *fbpar)
205 struct fb_info *info = fbpar->helper.fbdev;
206 struct fb_fillrect rect;
208 /* Clear the entire fbcon. The drm will program every connector
209 * with it's preferred mode. If the sizes differ, one display will
210 * quite likely have garbage around the console.
212 rect.dx = rect.dy = 0;
213 rect.width = info->var.xres_virtual;
214 rect.height = info->var.yres_virtual;
217 info->fbops->fb_fillrect(info, &rect);
221 nouveau_fbcon_create(struct drm_device *dev,
222 struct drm_fb_helper_surface_size *sizes,
223 struct nouveau_fbcon_par **fbpar_p)
225 struct drm_nouveau_private *dev_priv = dev->dev_private;
226 struct fb_info *info;
227 struct nouveau_fbcon_par *par;
228 struct drm_framebuffer *fb;
229 struct nouveau_framebuffer *nouveau_fb;
230 struct nouveau_bo *nvbo;
231 struct drm_mode_fb_cmd mode_cmd;
232 struct device *device = &dev->pdev->dev;
235 mode_cmd.width = sizes->surface_width;
236 mode_cmd.height = sizes->surface_height;
238 mode_cmd.bpp = sizes->surface_bpp;
239 mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3);
240 mode_cmd.pitch = roundup(mode_cmd.pitch, 256);
241 mode_cmd.depth = sizes->surface_depth;
243 size = mode_cmd.pitch * mode_cmd.height;
244 size = roundup(size, PAGE_SIZE);
246 ret = nouveau_gem_new(dev, dev_priv->channel, size, 0, TTM_PL_FLAG_VRAM,
247 0, 0x0000, false, true, &nvbo);
249 NV_ERROR(dev, "failed to allocate framebuffer\n");
253 ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
255 NV_ERROR(dev, "failed to pin fb: %d\n", ret);
256 nouveau_bo_ref(NULL, &nvbo);
260 ret = nouveau_bo_map(nvbo);
262 NV_ERROR(dev, "failed to map fb: %d\n", ret);
263 nouveau_bo_unpin(nvbo);
264 nouveau_bo_ref(NULL, &nvbo);
268 mutex_lock(&dev->struct_mutex);
270 info = framebuffer_alloc(sizeof(struct nouveau_fbcon_par), device);
277 nouveau_framebuffer_init(dev, &par->nouveau_fb, &mode_cmd, nvbo);
279 fb = &par->nouveau_fb.base;
282 par->helper.fbdev = info;
283 par->helper.funcs = &nouveau_fbcon_helper_funcs;
284 par->helper.dev = dev;
288 ret = drm_fb_helper_init_crtc_count(&par->helper, 2, 4);
292 strcpy(info->fix.id, "nouveaufb");
293 if (nouveau_nofbaccel)
294 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
296 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
297 FBINFO_HWACCEL_FILLRECT |
298 FBINFO_HWACCEL_IMAGEBLIT;
299 info->fbops = &nouveau_fbcon_ops;
300 info->fix.smem_start = dev->mode_config.fb_base + nvbo->bo.offset -
301 dev_priv->vm_vram_base;
302 info->fix.smem_len = size;
304 info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
305 info->screen_size = size;
307 drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
308 drm_fb_helper_fill_var(info, &par->helper, sizes->fb_width, sizes->fb_height);
310 /* FIXME: we really shouldn't expose mmio space at all */
311 info->fix.mmio_start = pci_resource_start(dev->pdev, 1);
312 info->fix.mmio_len = pci_resource_len(dev->pdev, 1);
314 /* Set aperture base/size for vesafb takeover */
315 #if defined(__i386__) || defined(__x86_64__)
316 if (nouveau_fbcon_has_vesafb_or_efifb(dev)) {
317 /* Some NVIDIA VBIOS' are stupid and decide to put the
318 * framebuffer in the middle of the PRAMIN BAR for
319 * whatever reason. We need to know the exact lfb_base
320 * to get vesafb kicked off, and the only reliable way
321 * we have left is to find out lfb_base the same way
324 info->aperture_base = screen_info.lfb_base;
325 info->aperture_size = screen_info.lfb_size;
326 if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB)
327 info->aperture_size *= 65536;
331 info->aperture_base = info->fix.mmio_start;
332 info->aperture_size = info->fix.mmio_len;
335 info->pixmap.size = 64*1024;
336 info->pixmap.buf_align = 8;
337 info->pixmap.access_align = 32;
338 info->pixmap.flags = FB_PIXMAP_SYSTEM;
339 info->pixmap.scan_align = 1;
343 if (dev_priv->channel && !nouveau_nofbaccel) {
344 switch (dev_priv->card_type) {
346 nv50_fbcon_accel_init(info);
347 info->fbops = &nv50_fbcon_ops;
350 nv04_fbcon_accel_init(info);
351 info->fbops = &nv04_fbcon_ops;
356 nouveau_fbcon_zfill(dev, par);
358 /* To allow resizeing without swapping buffers */
359 NV_INFO(dev, "allocated %dx%d fb: 0x%lx, bo %p\n",
360 nouveau_fb->base.width,
361 nouveau_fb->base.height,
362 nvbo->bo.offset, nvbo);
364 mutex_unlock(&dev->struct_mutex);
365 vga_switcheroo_client_fb_set(dev->pdev, info);
369 mutex_unlock(&dev->struct_mutex);
375 nouveau_fbcon_find_or_create_single(struct drm_device *dev,
376 struct drm_fb_helper_surface_size *sizes,
377 struct drm_fb_helper **fb_ptr)
379 struct drm_nouveau_private *dev_priv = dev->dev_private;
380 struct nouveau_fbcon_par *fbpar;
384 if (!dev_priv->nfbdev) {
385 ret = nouveau_fbcon_create(dev, sizes,
389 dev_priv->nfbdev = fbpar;
392 fbpar = dev_priv->nfbdev;
393 if (fbpar->nouveau_fb.base.width < sizes->surface_width ||
394 fbpar->nouveau_fb.base.height < sizes->surface_height) {
395 DRM_ERROR("Framebuffer not large enough to scale console onto.\n");
399 *fb_ptr = &fbpar->helper;
404 nouveau_fbcon_probe(struct drm_device *dev)
406 NV_DEBUG_KMS(dev, "\n");
408 return drm_fb_helper_single_fb_probe(dev, 32, nouveau_fbcon_find_or_create_single);
412 nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbcon_par *fbpar)
414 struct nouveau_framebuffer *nouveau_fb = &fbpar->nouveau_fb;
415 struct fb_info *info;
417 info = fbpar->helper.fbdev;
419 unregister_framebuffer(info);
420 nouveau_bo_unmap(nouveau_fb->nvbo);
421 drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
422 nouveau_fb->nvbo = NULL;
423 drm_fb_helper_free(&fbpar->helper);
425 drm_framebuffer_cleanup(&nouveau_fb->base);
426 framebuffer_release(info);
431 void nouveau_fbcon_gpu_lockup(struct fb_info *info)
433 struct nouveau_fbcon_par *par = info->par;
434 struct drm_device *dev = par->dev;
436 NV_ERROR(dev, "GPU lockup - switching to software fbcon\n");
437 info->flags |= FBINFO_HWACCEL_DISABLED;
440 int nouveau_fbcon_init(struct drm_device *dev)
442 drm_helper_initial_config(dev);
443 nouveau_fbcon_probe(dev);
447 void nouveau_fbcon_fini(struct drm_device *dev)
449 struct drm_nouveau_private *dev_priv = dev->dev_private;
450 nouveau_fbcon_destroy(dev, dev_priv->nfbdev);
451 dev_priv->nfbdev = NULL;
454 void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
456 struct drm_nouveau_private *dev_priv = dev->dev_private;
458 dev_priv->nfbdev->saved_flags = dev_priv->nfbdev->helper.fbdev->flags;
459 dev_priv->nfbdev->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
462 void nouveau_fbcon_restore_accel(struct drm_device *dev)
464 struct drm_nouveau_private *dev_priv = dev->dev_private;
465 dev_priv->nfbdev->helper.fbdev->flags = dev_priv->nfbdev->saved_flags;
468 void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
470 struct drm_nouveau_private *dev_priv = dev->dev_private;
471 fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state);
474 void nouveau_fbcon_zfill_all(struct drm_device *dev)
476 struct drm_nouveau_private *dev_priv = dev->dev_private;
477 nouveau_fbcon_zfill(dev, dev_priv->nfbdev);