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4d8d096e AC |
1 | /************************************************************************** |
2 | * Copyright (c) 2007-2011, Intel Corporation. | |
3 | * All Rights Reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms and conditions of the GNU General Public License, | |
7 | * version 2, as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | * | |
18 | **************************************************************************/ | |
19 | ||
20 | #include <linux/module.h> | |
21 | #include <linux/kernel.h> | |
22 | #include <linux/errno.h> | |
23 | #include <linux/string.h> | |
01c8f1c4 | 24 | #include <linux/pfn_t.h> |
4d8d096e AC |
25 | #include <linux/mm.h> |
26 | #include <linux/tty.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/fb.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/console.h> | |
32 | ||
33 | #include <drm/drmP.h> | |
34 | #include <drm/drm.h> | |
35 | #include <drm/drm_crtc.h> | |
a9a644ac | 36 | #include <drm/drm_fb_helper.h> |
4d8d096e AC |
37 | |
38 | #include "psb_drv.h" | |
39 | #include "psb_intel_reg.h" | |
40 | #include "psb_intel_drv.h" | |
41 | #include "framebuffer.h" | |
a6ba582d | 42 | #include "gtt.h" |
4d8d096e AC |
43 | |
44 | static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb); | |
45 | static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
46 | struct drm_file *file_priv, | |
47 | unsigned int *handle); | |
48 | ||
49 | static const struct drm_framebuffer_funcs psb_fb_funcs = { | |
50 | .destroy = psb_user_framebuffer_destroy, | |
51 | .create_handle = psb_user_framebuffer_create_handle, | |
52 | }; | |
53 | ||
54 | #define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16) | |
55 | ||
56 | static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green, | |
57 | unsigned blue, unsigned transp, | |
58 | struct fb_info *info) | |
59 | { | |
60 | struct psb_fbdev *fbdev = info->par; | |
61 | struct drm_framebuffer *fb = fbdev->psb_fb_helper.fb; | |
62 | uint32_t v; | |
63 | ||
64 | if (!fb) | |
65 | return -ENOMEM; | |
66 | ||
67 | if (regno > 255) | |
68 | return 1; | |
69 | ||
70 | red = CMAP_TOHW(red, info->var.red.length); | |
71 | blue = CMAP_TOHW(blue, info->var.blue.length); | |
72 | green = CMAP_TOHW(green, info->var.green.length); | |
73 | transp = CMAP_TOHW(transp, info->var.transp.length); | |
74 | ||
75 | v = (red << info->var.red.offset) | | |
76 | (green << info->var.green.offset) | | |
77 | (blue << info->var.blue.offset) | | |
78 | (transp << info->var.transp.offset); | |
79 | ||
80 | if (regno < 16) { | |
81 | switch (fb->bits_per_pixel) { | |
82 | case 16: | |
83 | ((uint32_t *) info->pseudo_palette)[regno] = v; | |
84 | break; | |
85 | case 24: | |
86 | case 32: | |
87 | ((uint32_t *) info->pseudo_palette)[regno] = v; | |
88 | break; | |
89 | } | |
90 | } | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
a6ba582d AC |
95 | static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info) |
96 | { | |
97 | struct psb_fbdev *fbdev = info->par; | |
98 | struct psb_framebuffer *psbfb = &fbdev->pfb; | |
99 | struct drm_device *dev = psbfb->base.dev; | |
100 | ||
101 | /* | |
102 | * We have to poke our nose in here. The core fb code assumes | |
103 | * panning is part of the hardware that can be invoked before | |
104 | * the actual fb is mapped. In our case that isn't quite true. | |
105 | */ | |
106 | if (psbfb->gtt->npage) { | |
107 | /* GTT roll shifts in 4K pages, we need to shift the right | |
108 | number of pages */ | |
109 | int pages = info->fix.line_length >> 12; | |
110 | psb_gtt_roll(dev, psbfb->gtt, var->yoffset * pages); | |
111 | } | |
112 | return 0; | |
113 | } | |
4d8d096e | 114 | |
4d8d096e AC |
115 | static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) |
116 | { | |
117 | struct psb_framebuffer *psbfb = vma->vm_private_data; | |
118 | struct drm_device *dev = psbfb->base.dev; | |
119 | struct drm_psb_private *dev_priv = dev->dev_private; | |
120 | int page_num; | |
121 | int i; | |
122 | unsigned long address; | |
123 | int ret; | |
124 | unsigned long pfn; | |
61bb3fea PJ |
125 | unsigned long phys_addr = (unsigned long)dev_priv->stolen_base + |
126 | psbfb->gtt->offset; | |
4d8d096e AC |
127 | |
128 | page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; | |
1278f7de | 129 | address = (unsigned long)vmf->virtual_address - (vmf->pgoff << PAGE_SHIFT); |
4d8d096e AC |
130 | |
131 | vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); | |
132 | ||
133 | for (i = 0; i < page_num; i++) { | |
134 | pfn = (phys_addr >> PAGE_SHIFT); | |
135 | ||
01c8f1c4 DW |
136 | ret = vm_insert_mixed(vma, address, |
137 | __pfn_to_pfn_t(pfn, PFN_DEV)); | |
4d8d096e AC |
138 | if (unlikely((ret == -EBUSY) || (ret != 0 && i > 0))) |
139 | break; | |
140 | else if (unlikely(ret != 0)) { | |
141 | ret = (ret == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS; | |
142 | return ret; | |
143 | } | |
144 | address += PAGE_SIZE; | |
145 | phys_addr += PAGE_SIZE; | |
146 | } | |
147 | return VM_FAULT_NOPAGE; | |
148 | } | |
149 | ||
150 | static void psbfb_vm_open(struct vm_area_struct *vma) | |
151 | { | |
152 | } | |
153 | ||
154 | static void psbfb_vm_close(struct vm_area_struct *vma) | |
155 | { | |
156 | } | |
157 | ||
78b68556 | 158 | static const struct vm_operations_struct psbfb_vm_ops = { |
4d8d096e AC |
159 | .fault = psbfb_vm_fault, |
160 | .open = psbfb_vm_open, | |
161 | .close = psbfb_vm_close | |
162 | }; | |
163 | ||
164 | static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma) | |
165 | { | |
166 | struct psb_fbdev *fbdev = info->par; | |
167 | struct psb_framebuffer *psbfb = &fbdev->pfb; | |
168 | ||
169 | if (vma->vm_pgoff != 0) | |
170 | return -EINVAL; | |
171 | if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) | |
172 | return -EINVAL; | |
173 | ||
174 | if (!psbfb->addr_space) | |
175 | psbfb->addr_space = vma->vm_file->f_mapping; | |
176 | /* | |
177 | * If this is a GEM object then info->screen_base is the virtual | |
178 | * kernel remapping of the object. FIXME: Review if this is | |
179 | * suitable for our mmap work | |
180 | */ | |
181 | vma->vm_ops = &psbfb_vm_ops; | |
182 | vma->vm_private_data = (void *)psbfb; | |
314e51b9 | 183 | vma->vm_flags |= VM_IO | VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTDUMP; |
4d8d096e AC |
184 | return 0; |
185 | } | |
186 | ||
187 | static int psbfb_ioctl(struct fb_info *info, unsigned int cmd, | |
188 | unsigned long arg) | |
189 | { | |
190 | return -ENOTTY; | |
191 | } | |
192 | ||
193 | static struct fb_ops psbfb_ops = { | |
194 | .owner = THIS_MODULE, | |
195 | .fb_check_var = drm_fb_helper_check_var, | |
196 | .fb_set_par = drm_fb_helper_set_par, | |
197 | .fb_blank = drm_fb_helper_blank, | |
198 | .fb_setcolreg = psbfb_setcolreg, | |
546187c8 | 199 | .fb_fillrect = drm_fb_helper_cfb_fillrect, |
4d8d096e | 200 | .fb_copyarea = psbfb_copyarea, |
546187c8 | 201 | .fb_imageblit = drm_fb_helper_cfb_imageblit, |
4d8d096e AC |
202 | .fb_mmap = psbfb_mmap, |
203 | .fb_sync = psbfb_sync, | |
204 | .fb_ioctl = psbfb_ioctl, | |
205 | }; | |
206 | ||
a6ba582d AC |
207 | static struct fb_ops psbfb_roll_ops = { |
208 | .owner = THIS_MODULE, | |
209 | .fb_check_var = drm_fb_helper_check_var, | |
210 | .fb_set_par = drm_fb_helper_set_par, | |
211 | .fb_blank = drm_fb_helper_blank, | |
212 | .fb_setcolreg = psbfb_setcolreg, | |
546187c8 AT |
213 | .fb_fillrect = drm_fb_helper_cfb_fillrect, |
214 | .fb_copyarea = drm_fb_helper_cfb_copyarea, | |
215 | .fb_imageblit = drm_fb_helper_cfb_imageblit, | |
a6ba582d AC |
216 | .fb_pan_display = psbfb_pan, |
217 | .fb_mmap = psbfb_mmap, | |
a6ba582d AC |
218 | .fb_ioctl = psbfb_ioctl, |
219 | }; | |
220 | ||
4d8d096e AC |
221 | static struct fb_ops psbfb_unaccel_ops = { |
222 | .owner = THIS_MODULE, | |
223 | .fb_check_var = drm_fb_helper_check_var, | |
224 | .fb_set_par = drm_fb_helper_set_par, | |
225 | .fb_blank = drm_fb_helper_blank, | |
226 | .fb_setcolreg = psbfb_setcolreg, | |
546187c8 AT |
227 | .fb_fillrect = drm_fb_helper_cfb_fillrect, |
228 | .fb_copyarea = drm_fb_helper_cfb_copyarea, | |
229 | .fb_imageblit = drm_fb_helper_cfb_imageblit, | |
4d8d096e AC |
230 | .fb_mmap = psbfb_mmap, |
231 | .fb_ioctl = psbfb_ioctl, | |
232 | }; | |
233 | ||
234 | /** | |
235 | * psb_framebuffer_init - initialize a framebuffer | |
236 | * @dev: our DRM device | |
237 | * @fb: framebuffer to set up | |
238 | * @mode_cmd: mode description | |
239 | * @gt: backing object | |
240 | * | |
241 | * Configure and fill in the boilerplate for our frame buffer. Return | |
242 | * 0 on success or an error code if we fail. | |
243 | */ | |
244 | static int psb_framebuffer_init(struct drm_device *dev, | |
245 | struct psb_framebuffer *fb, | |
1eb83451 | 246 | const struct drm_mode_fb_cmd2 *mode_cmd, |
4d8d096e AC |
247 | struct gtt_range *gt) |
248 | { | |
a9a644ac | 249 | u32 bpp, depth; |
4d8d096e AC |
250 | int ret; |
251 | ||
248dbc23 | 252 | drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp); |
a9a644ac DA |
253 | |
254 | if (mode_cmd->pitches[0] & 63) | |
4d8d096e | 255 | return -EINVAL; |
a9a644ac | 256 | switch (bpp) { |
4d8d096e AC |
257 | case 8: |
258 | case 16: | |
259 | case 24: | |
260 | case 32: | |
261 | break; | |
262 | default: | |
263 | return -EINVAL; | |
264 | } | |
c7d73f6a DV |
265 | drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd); |
266 | fb->gtt = gt; | |
4d8d096e AC |
267 | ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs); |
268 | if (ret) { | |
269 | dev_err(dev->dev, "framebuffer init failed: %d\n", ret); | |
270 | return ret; | |
271 | } | |
4d8d096e AC |
272 | return 0; |
273 | } | |
274 | ||
275 | /** | |
276 | * psb_framebuffer_create - create a framebuffer backed by gt | |
277 | * @dev: our DRM device | |
278 | * @mode_cmd: the description of the requested mode | |
279 | * @gt: the backing object | |
280 | * | |
281 | * Create a framebuffer object backed by the gt, and fill in the | |
282 | * boilerplate required | |
283 | * | |
284 | * TODO: review object references | |
285 | */ | |
286 | ||
287 | static struct drm_framebuffer *psb_framebuffer_create | |
288 | (struct drm_device *dev, | |
1eb83451 | 289 | const struct drm_mode_fb_cmd2 *mode_cmd, |
4d8d096e AC |
290 | struct gtt_range *gt) |
291 | { | |
292 | struct psb_framebuffer *fb; | |
293 | int ret; | |
294 | ||
295 | fb = kzalloc(sizeof(*fb), GFP_KERNEL); | |
296 | if (!fb) | |
297 | return ERR_PTR(-ENOMEM); | |
298 | ||
299 | ret = psb_framebuffer_init(dev, fb, mode_cmd, gt); | |
300 | if (ret) { | |
301 | kfree(fb); | |
302 | return ERR_PTR(ret); | |
303 | } | |
304 | return &fb->base; | |
305 | } | |
306 | ||
307 | /** | |
308 | * psbfb_alloc - allocate frame buffer memory | |
309 | * @dev: the DRM device | |
310 | * @aligned_size: space needed | |
a6ba582d | 311 | * @force: fall back to GEM buffers if need be |
4d8d096e AC |
312 | * |
313 | * Allocate the frame buffer. In the usual case we get a GTT range that | |
314 | * is stolen memory backed and life is simple. If there isn't sufficient | |
dffc9ceb AC |
315 | * we fail as we don't have the virtual mapping space to really vmap it |
316 | * and the kernel console code can't handle non linear framebuffers. | |
4d8d096e | 317 | * |
dffc9ceb | 318 | * Re-address this as and if the framebuffer layer grows this ability. |
4d8d096e AC |
319 | */ |
320 | static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size) | |
321 | { | |
322 | struct gtt_range *backing; | |
323 | /* Begin by trying to use stolen memory backing */ | |
c269c685 | 324 | backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1, PAGE_SIZE); |
4d8d096e | 325 | if (backing) { |
89c8233f DH |
326 | drm_gem_private_object_init(dev, &backing->gem, aligned_size); |
327 | return backing; | |
4d8d096e | 328 | } |
dffc9ceb | 329 | return NULL; |
4d8d096e AC |
330 | } |
331 | ||
332 | /** | |
333 | * psbfb_create - create a framebuffer | |
334 | * @fbdev: the framebuffer device | |
335 | * @sizes: specification of the layout | |
336 | * | |
337 | * Create a framebuffer to the specifications provided | |
338 | */ | |
339 | static int psbfb_create(struct psb_fbdev *fbdev, | |
340 | struct drm_fb_helper_surface_size *sizes) | |
341 | { | |
342 | struct drm_device *dev = fbdev->psb_fb_helper.dev; | |
343 | struct drm_psb_private *dev_priv = dev->dev_private; | |
344 | struct fb_info *info; | |
345 | struct drm_framebuffer *fb; | |
346 | struct psb_framebuffer *psbfb = &fbdev->pfb; | |
a9a644ac | 347 | struct drm_mode_fb_cmd2 mode_cmd; |
4d8d096e AC |
348 | int size; |
349 | int ret; | |
350 | struct gtt_range *backing; | |
a9a644ac | 351 | u32 bpp, depth; |
1b223c9e AC |
352 | int gtt_roll = 0; |
353 | int pitch_lines = 0; | |
4d8d096e AC |
354 | |
355 | mode_cmd.width = sizes->surface_width; | |
356 | mode_cmd.height = sizes->surface_height; | |
a9a644ac | 357 | bpp = sizes->surface_bpp; |
6aa1ead1 | 358 | depth = sizes->surface_depth; |
4d8d096e AC |
359 | |
360 | /* No 24bit packed */ | |
a9a644ac DA |
361 | if (bpp == 24) |
362 | bpp = 32; | |
4d8d096e | 363 | |
1b223c9e AC |
364 | do { |
365 | /* | |
366 | * Acceleration via the GTT requires pitch to be | |
367 | * power of two aligned. Preferably page but less | |
368 | * is ok with some fonts | |
369 | */ | |
370 | mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 4096 >> pitch_lines); | |
1b223c9e AC |
371 | |
372 | size = mode_cmd.pitches[0] * mode_cmd.height; | |
373 | size = ALIGN(size, PAGE_SIZE); | |
374 | ||
375 | /* Allocate the fb in the GTT with stolen page backing */ | |
376 | backing = psbfb_alloc(dev, size); | |
377 | ||
378 | if (pitch_lines) | |
379 | pitch_lines *= 2; | |
380 | else | |
381 | pitch_lines = 1; | |
382 | gtt_roll++; | |
383 | } while (backing == NULL && pitch_lines <= 16); | |
4d8d096e | 384 | |
1b223c9e AC |
385 | /* The final pitch we accepted if we succeeded */ |
386 | pitch_lines /= 2; | |
4d8d096e | 387 | |
a6ba582d AC |
388 | if (backing == NULL) { |
389 | /* | |
390 | * We couldn't get the space we wanted, fall back to the | |
391 | * display engine requirement instead. The HW requires | |
392 | * the pitch to be 64 byte aligned | |
a6ba582d AC |
393 | */ |
394 | ||
395 | gtt_roll = 0; /* Don't use GTT accelerated scrolling */ | |
1b223c9e | 396 | pitch_lines = 64; |
a6ba582d AC |
397 | |
398 | mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((bpp + 7) / 8), 64); | |
399 | ||
400 | size = mode_cmd.pitches[0] * mode_cmd.height; | |
401 | size = ALIGN(size, PAGE_SIZE); | |
402 | ||
403 | /* Allocate the framebuffer in the GTT with stolen page backing */ | |
404 | backing = psbfb_alloc(dev, size); | |
405 | if (backing == NULL) | |
406 | return -ENOMEM; | |
407 | } | |
4d8d096e | 408 | |
bb849779 AC |
409 | memset(dev_priv->vram_addr + backing->offset, 0, size); |
410 | ||
546187c8 AT |
411 | info = drm_fb_helper_alloc_fbi(&fbdev->psb_fb_helper); |
412 | if (IS_ERR(info)) { | |
413 | ret = PTR_ERR(info); | |
4d8d096e AC |
414 | goto out_err1; |
415 | } | |
416 | info->par = fbdev; | |
417 | ||
a9a644ac DA |
418 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth); |
419 | ||
4d8d096e AC |
420 | ret = psb_framebuffer_init(dev, psbfb, &mode_cmd, backing); |
421 | if (ret) | |
422 | goto out_unref; | |
423 | ||
424 | fb = &psbfb->base; | |
425 | psbfb->fbdev = info; | |
426 | ||
427 | fbdev->psb_fb_helper.fb = fb; | |
4d8d096e | 428 | |
4578240b | 429 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); |
f9d8149a | 430 | strcpy(info->fix.id, "psbdrmfb"); |
4d8d096e AC |
431 | |
432 | info->flags = FBINFO_DEFAULT; | |
1b223c9e AC |
433 | if (dev_priv->ops->accel_2d && pitch_lines > 8) /* 2D engine */ |
434 | info->fbops = &psbfb_ops; | |
435 | else if (gtt_roll) { /* GTT rolling seems best */ | |
a6ba582d AC |
436 | info->fbops = &psbfb_roll_ops; |
437 | info->flags |= FBINFO_HWACCEL_YPAN; | |
1b223c9e | 438 | } else /* Software */ |
a6ba582d | 439 | info->fbops = &psbfb_unaccel_ops; |
4d8d096e | 440 | |
4d8d096e AC |
441 | info->fix.smem_start = dev->mode_config.fb_base; |
442 | info->fix.smem_len = size; | |
a6ba582d AC |
443 | info->fix.ywrapstep = gtt_roll; |
444 | info->fix.ypanstep = 0; | |
4d8d096e | 445 | |
dffc9ceb | 446 | /* Accessed stolen memory directly */ |
37214ca0 | 447 | info->screen_base = dev_priv->vram_addr + backing->offset; |
4d8d096e AC |
448 | info->screen_size = size; |
449 | ||
450 | if (dev_priv->gtt.stolen_size) { | |
4d8d096e AC |
451 | info->apertures->ranges[0].base = dev->mode_config.fb_base; |
452 | info->apertures->ranges[0].size = dev_priv->gtt.stolen_size; | |
453 | } | |
454 | ||
4d8d096e AC |
455 | drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper, |
456 | sizes->fb_width, sizes->fb_height); | |
457 | ||
458 | info->fix.mmio_start = pci_resource_start(dev->pdev, 0); | |
459 | info->fix.mmio_len = pci_resource_len(dev->pdev, 0); | |
460 | ||
fb2a99e1 | 461 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
4d8d096e | 462 | |
31a0685a | 463 | dev_dbg(dev->dev, "allocated %dx%d fb\n", |
4d8d096e AC |
464 | psbfb->base.width, psbfb->base.height); |
465 | ||
4d8d096e AC |
466 | return 0; |
467 | out_unref: | |
468 | if (backing->stolen) | |
469 | psb_gtt_free_range(dev, backing); | |
dffc9ceb | 470 | else |
46a0f223 | 471 | drm_gem_object_unreference_unlocked(&backing->gem); |
546187c8 AT |
472 | |
473 | drm_fb_helper_release_fbi(&fbdev->psb_fb_helper); | |
4d8d096e | 474 | out_err1: |
4d8d096e AC |
475 | psb_gtt_free_range(dev, backing); |
476 | return ret; | |
477 | } | |
478 | ||
479 | /** | |
480 | * psb_user_framebuffer_create - create framebuffer | |
481 | * @dev: our DRM device | |
482 | * @filp: client file | |
483 | * @cmd: mode request | |
484 | * | |
485 | * Create a new framebuffer backed by a userspace GEM object | |
486 | */ | |
487 | static struct drm_framebuffer *psb_user_framebuffer_create | |
488 | (struct drm_device *dev, struct drm_file *filp, | |
1eb83451 | 489 | const struct drm_mode_fb_cmd2 *cmd) |
4d8d096e AC |
490 | { |
491 | struct gtt_range *r; | |
492 | struct drm_gem_object *obj; | |
493 | ||
494 | /* | |
495 | * Find the GEM object and thus the gtt range object that is | |
496 | * to back this space | |
497 | */ | |
a9a644ac | 498 | obj = drm_gem_object_lookup(dev, filp, cmd->handles[0]); |
4d8d096e AC |
499 | if (obj == NULL) |
500 | return ERR_PTR(-ENOENT); | |
501 | ||
502 | /* Let the core code do all the work */ | |
503 | r = container_of(obj, struct gtt_range, gem); | |
504 | return psb_framebuffer_create(dev, cmd, r); | |
505 | } | |
506 | ||
507 | static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green, | |
508 | u16 blue, int regno) | |
509 | { | |
6306865d | 510 | struct gma_crtc *gma_crtc = to_gma_crtc(crtc); |
3df546be | 511 | |
6306865d PJ |
512 | gma_crtc->lut_r[regno] = red >> 8; |
513 | gma_crtc->lut_g[regno] = green >> 8; | |
514 | gma_crtc->lut_b[regno] = blue >> 8; | |
4d8d096e AC |
515 | } |
516 | ||
517 | static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red, | |
518 | u16 *green, u16 *blue, int regno) | |
519 | { | |
6306865d | 520 | struct gma_crtc *gma_crtc = to_gma_crtc(crtc); |
3df546be | 521 | |
6306865d PJ |
522 | *red = gma_crtc->lut_r[regno] << 8; |
523 | *green = gma_crtc->lut_g[regno] << 8; | |
524 | *blue = gma_crtc->lut_b[regno] << 8; | |
4d8d096e AC |
525 | } |
526 | ||
527 | static int psbfb_probe(struct drm_fb_helper *helper, | |
528 | struct drm_fb_helper_surface_size *sizes) | |
529 | { | |
c39aa6a1 FF |
530 | struct psb_fbdev *psb_fbdev = |
531 | container_of(helper, struct psb_fbdev, psb_fb_helper); | |
3aad16d2 AC |
532 | struct drm_device *dev = psb_fbdev->psb_fb_helper.dev; |
533 | struct drm_psb_private *dev_priv = dev->dev_private; | |
3aad16d2 | 534 | int bytespp; |
4d8d096e | 535 | |
3aad16d2 AC |
536 | bytespp = sizes->surface_bpp / 8; |
537 | if (bytespp == 3) /* no 24bit packed */ | |
538 | bytespp = 4; | |
539 | ||
540 | /* If the mode will not fit in 32bit then switch to 16bit to get | |
541 | a console on full resolution. The X mode setting server will | |
542 | allocate its own 32bit GEM framebuffer */ | |
543 | if (ALIGN(sizes->fb_width * bytespp, 64) * sizes->fb_height > | |
544 | dev_priv->vram_stolen_size) { | |
545 | sizes->surface_bpp = 16; | |
546 | sizes->surface_depth = 16; | |
547 | } | |
548 | ||
cd5428a5 | 549 | return psbfb_create(psb_fbdev, sizes); |
4d8d096e AC |
550 | } |
551 | ||
3a493879 | 552 | static const struct drm_fb_helper_funcs psb_fb_helper_funcs = { |
4d8d096e AC |
553 | .gamma_set = psbfb_gamma_set, |
554 | .gamma_get = psbfb_gamma_get, | |
555 | .fb_probe = psbfb_probe, | |
556 | }; | |
557 | ||
bc7f2b08 | 558 | static int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev) |
4d8d096e | 559 | { |
4d8d096e AC |
560 | struct psb_framebuffer *psbfb = &fbdev->pfb; |
561 | ||
546187c8 AT |
562 | drm_fb_helper_unregister_fbi(&fbdev->psb_fb_helper); |
563 | drm_fb_helper_release_fbi(&fbdev->psb_fb_helper); | |
564 | ||
4d8d096e | 565 | drm_fb_helper_fini(&fbdev->psb_fb_helper); |
36206361 | 566 | drm_framebuffer_unregister_private(&psbfb->base); |
4d8d096e AC |
567 | drm_framebuffer_cleanup(&psbfb->base); |
568 | ||
569 | if (psbfb->gtt) | |
46a0f223 | 570 | drm_gem_object_unreference_unlocked(&psbfb->gtt->gem); |
4d8d096e AC |
571 | return 0; |
572 | } | |
573 | ||
574 | int psb_fbdev_init(struct drm_device *dev) | |
575 | { | |
576 | struct psb_fbdev *fbdev; | |
577 | struct drm_psb_private *dev_priv = dev->dev_private; | |
01934c2a | 578 | int ret; |
4d8d096e AC |
579 | |
580 | fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL); | |
581 | if (!fbdev) { | |
582 | dev_err(dev->dev, "no memory\n"); | |
583 | return -ENOMEM; | |
584 | } | |
585 | ||
586 | dev_priv->fbdev = fbdev; | |
10a23102 TR |
587 | |
588 | drm_fb_helper_prepare(dev, &fbdev->psb_fb_helper, &psb_fb_helper_funcs); | |
4d8d096e | 589 | |
01934c2a TR |
590 | ret = drm_fb_helper_init(dev, &fbdev->psb_fb_helper, |
591 | dev_priv->ops->crtcs, INTELFB_CONN_LIMIT); | |
592 | if (ret) | |
593 | goto free; | |
4d8d096e | 594 | |
01934c2a TR |
595 | ret = drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper); |
596 | if (ret) | |
597 | goto fini; | |
76a39dbf DV |
598 | |
599 | /* disable all the possible outputs/crtcs before entering KMS mode */ | |
600 | drm_helper_disable_unused_functions(dev); | |
601 | ||
01934c2a TR |
602 | ret = drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32); |
603 | if (ret) | |
604 | goto fini; | |
605 | ||
4d8d096e | 606 | return 0; |
01934c2a TR |
607 | |
608 | fini: | |
609 | drm_fb_helper_fini(&fbdev->psb_fb_helper); | |
610 | free: | |
611 | kfree(fbdev); | |
612 | return ret; | |
4d8d096e AC |
613 | } |
614 | ||
bc7f2b08 | 615 | static void psb_fbdev_fini(struct drm_device *dev) |
4d8d096e AC |
616 | { |
617 | struct drm_psb_private *dev_priv = dev->dev_private; | |
618 | ||
619 | if (!dev_priv->fbdev) | |
620 | return; | |
621 | ||
622 | psb_fbdev_destroy(dev, dev_priv->fbdev); | |
623 | kfree(dev_priv->fbdev); | |
624 | dev_priv->fbdev = NULL; | |
625 | } | |
626 | ||
627 | static void psbfb_output_poll_changed(struct drm_device *dev) | |
628 | { | |
629 | struct drm_psb_private *dev_priv = dev->dev_private; | |
630 | struct psb_fbdev *fbdev = (struct psb_fbdev *)dev_priv->fbdev; | |
631 | drm_fb_helper_hotplug_event(&fbdev->psb_fb_helper); | |
632 | } | |
633 | ||
634 | /** | |
635 | * psb_user_framebuffer_create_handle - add hamdle to a framebuffer | |
636 | * @fb: framebuffer | |
637 | * @file_priv: our DRM file | |
638 | * @handle: returned handle | |
639 | * | |
640 | * Our framebuffer object is a GTT range which also contains a GEM | |
641 | * object. We need to turn it into a handle for userspace. GEM will do | |
642 | * the work for us | |
643 | */ | |
644 | static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb, | |
645 | struct drm_file *file_priv, | |
646 | unsigned int *handle) | |
647 | { | |
648 | struct psb_framebuffer *psbfb = to_psb_fb(fb); | |
649 | struct gtt_range *r = psbfb->gtt; | |
650 | return drm_gem_handle_create(file_priv, &r->gem, handle); | |
651 | } | |
652 | ||
653 | /** | |
654 | * psb_user_framebuffer_destroy - destruct user created fb | |
655 | * @fb: framebuffer | |
656 | * | |
657 | * User framebuffers are backed by GEM objects so all we have to do is | |
658 | * clean up a bit and drop the reference, GEM will handle the fallout | |
659 | */ | |
660 | static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
661 | { | |
662 | struct psb_framebuffer *psbfb = to_psb_fb(fb); | |
663 | struct gtt_range *r = psbfb->gtt; | |
4d8d096e AC |
664 | |
665 | /* Let DRM do its clean up */ | |
666 | drm_framebuffer_cleanup(fb); | |
667 | /* We are no longer using the resource in GEM */ | |
668 | drm_gem_object_unreference_unlocked(&r->gem); | |
669 | kfree(fb); | |
670 | } | |
671 | ||
672 | static const struct drm_mode_config_funcs psb_mode_funcs = { | |
673 | .fb_create = psb_user_framebuffer_create, | |
674 | .output_poll_changed = psbfb_output_poll_changed, | |
675 | }; | |
676 | ||
677 | static int psb_create_backlight_property(struct drm_device *dev) | |
678 | { | |
679 | struct drm_psb_private *dev_priv = dev->dev_private; | |
680 | struct drm_property *backlight; | |
681 | ||
682 | if (dev_priv->backlight_property) | |
683 | return 0; | |
684 | ||
d9bc3c02 | 685 | backlight = drm_property_create_range(dev, 0, "backlight", 0, 100); |
4d8d096e AC |
686 | |
687 | dev_priv->backlight_property = backlight; | |
688 | ||
689 | return 0; | |
690 | } | |
691 | ||
692 | static void psb_setup_outputs(struct drm_device *dev) | |
693 | { | |
694 | struct drm_psb_private *dev_priv = dev->dev_private; | |
695 | struct drm_connector *connector; | |
696 | ||
697 | drm_mode_create_scaling_mode_property(dev); | |
698 | psb_create_backlight_property(dev); | |
699 | ||
700 | dev_priv->ops->output_init(dev); | |
701 | ||
702 | list_for_each_entry(connector, &dev->mode_config.connector_list, | |
703 | head) { | |
367e4408 PJ |
704 | struct gma_encoder *gma_encoder = gma_attached_encoder(connector); |
705 | struct drm_encoder *encoder = &gma_encoder->base; | |
4d8d096e AC |
706 | int crtc_mask = 0, clone_mask = 0; |
707 | ||
708 | /* valid crtcs */ | |
367e4408 | 709 | switch (gma_encoder->type) { |
4d8d096e AC |
710 | case INTEL_OUTPUT_ANALOG: |
711 | crtc_mask = (1 << 0); | |
712 | clone_mask = (1 << INTEL_OUTPUT_ANALOG); | |
713 | break; | |
714 | case INTEL_OUTPUT_SDVO: | |
cf8efd3a | 715 | crtc_mask = dev_priv->ops->sdvo_mask; |
4d8d096e AC |
716 | clone_mask = (1 << INTEL_OUTPUT_SDVO); |
717 | break; | |
718 | case INTEL_OUTPUT_LVDS: | |
d235e64a | 719 | crtc_mask = dev_priv->ops->lvds_mask; |
4d8d096e AC |
720 | clone_mask = (1 << INTEL_OUTPUT_LVDS); |
721 | break; | |
722 | case INTEL_OUTPUT_MIPI: | |
723 | crtc_mask = (1 << 0); | |
724 | clone_mask = (1 << INTEL_OUTPUT_MIPI); | |
725 | break; | |
726 | case INTEL_OUTPUT_MIPI2: | |
727 | crtc_mask = (1 << 2); | |
728 | clone_mask = (1 << INTEL_OUTPUT_MIPI2); | |
729 | break; | |
730 | case INTEL_OUTPUT_HDMI: | |
d235e64a | 731 | crtc_mask = dev_priv->ops->hdmi_mask; |
4d8d096e AC |
732 | clone_mask = (1 << INTEL_OUTPUT_HDMI); |
733 | break; | |
220801bd AC |
734 | case INTEL_OUTPUT_DISPLAYPORT: |
735 | crtc_mask = (1 << 0) | (1 << 1); | |
736 | clone_mask = (1 << INTEL_OUTPUT_DISPLAYPORT); | |
737 | break; | |
d112a816 ZY |
738 | case INTEL_OUTPUT_EDP: |
739 | crtc_mask = (1 << 1); | |
740 | clone_mask = (1 << INTEL_OUTPUT_EDP); | |
4d8d096e AC |
741 | } |
742 | encoder->possible_crtcs = crtc_mask; | |
743 | encoder->possible_clones = | |
a3d5d75f | 744 | gma_connector_clones(dev, clone_mask); |
4d8d096e AC |
745 | } |
746 | } | |
747 | ||
748 | void psb_modeset_init(struct drm_device *dev) | |
749 | { | |
750 | struct drm_psb_private *dev_priv = dev->dev_private; | |
751 | struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev; | |
752 | int i; | |
753 | ||
754 | drm_mode_config_init(dev); | |
755 | ||
756 | dev->mode_config.min_width = 0; | |
757 | dev->mode_config.min_height = 0; | |
758 | ||
e6ecefaa | 759 | dev->mode_config.funcs = &psb_mode_funcs; |
4d8d096e AC |
760 | |
761 | /* set memory base */ | |
dffc9ceb | 762 | /* Oaktrail and Poulsbo should use BAR 2*/ |
4d8d096e AC |
763 | pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *) |
764 | &(dev->mode_config.fb_base)); | |
765 | ||
766 | /* num pipes is 2 for PSB but 1 for Mrst */ | |
767 | for (i = 0; i < dev_priv->num_pipe; i++) | |
768 | psb_intel_crtc_init(dev, i, mode_dev); | |
769 | ||
cbbd379a PJ |
770 | dev->mode_config.max_width = 4096; |
771 | dev->mode_config.max_height = 4096; | |
4d8d096e AC |
772 | |
773 | psb_setup_outputs(dev); | |
d235e64a AC |
774 | |
775 | if (dev_priv->ops->errata) | |
776 | dev_priv->ops->errata(dev); | |
4ab2c7f1 AC |
777 | |
778 | dev_priv->modeset = true; | |
4d8d096e AC |
779 | } |
780 | ||
781 | void psb_modeset_cleanup(struct drm_device *dev) | |
782 | { | |
4ab2c7f1 AC |
783 | struct drm_psb_private *dev_priv = dev->dev_private; |
784 | if (dev_priv->modeset) { | |
4ab2c7f1 AC |
785 | drm_kms_helper_poll_fini(dev); |
786 | psb_fbdev_fini(dev); | |
787 | drm_mode_config_cleanup(dev); | |
4ab2c7f1 | 788 | } |
4d8d096e | 789 | } |