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312fec14 DA |
1 | /* |
2 | * Copyright 2012 Red Hat Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the | |
6 | * "Software"), to deal in the Software without restriction, including | |
7 | * without limitation the rights to use, copy, modify, merge, publish, | |
8 | * distribute, sub license, and/or sell copies of the Software, and to | |
9 | * permit persons to whom the Software is furnished to do so, subject to | |
10 | * the following conditions: | |
11 | * | |
12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
13 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
14 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
15 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
16 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
17 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
18 | * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
19 | * | |
20 | * The above copyright notice and this permission notice (including the | |
21 | * next paragraph) shall be included in all copies or substantial portions | |
22 | * of the Software. | |
23 | * | |
24 | */ | |
25 | /* | |
26 | * Authors: Dave Airlie <airlied@redhat.com> | |
27 | */ | |
760285e7 | 28 | #include <drm/drmP.h> |
312fec14 DA |
29 | #include "ast_drv.h" |
30 | ||
31 | ||
760285e7 DH |
32 | #include <drm/drm_fb_helper.h> |
33 | #include <drm/drm_crtc_helper.h> | |
312fec14 DA |
34 | |
35 | #include "ast_dram_tables.h" | |
36 | ||
37 | void ast_set_index_reg_mask(struct ast_private *ast, | |
38 | uint32_t base, uint8_t index, | |
39 | uint8_t mask, uint8_t val) | |
40 | { | |
41 | u8 tmp; | |
42 | ast_io_write8(ast, base, index); | |
43 | tmp = (ast_io_read8(ast, base + 1) & mask) | val; | |
44 | ast_set_index_reg(ast, base, index, tmp); | |
45 | } | |
46 | ||
47 | uint8_t ast_get_index_reg(struct ast_private *ast, | |
48 | uint32_t base, uint8_t index) | |
49 | { | |
50 | uint8_t ret; | |
51 | ast_io_write8(ast, base, index); | |
52 | ret = ast_io_read8(ast, base + 1); | |
53 | return ret; | |
54 | } | |
55 | ||
56 | uint8_t ast_get_index_reg_mask(struct ast_private *ast, | |
57 | uint32_t base, uint8_t index, uint8_t mask) | |
58 | { | |
59 | uint8_t ret; | |
60 | ast_io_write8(ast, base, index); | |
61 | ret = ast_io_read8(ast, base + 1) & mask; | |
62 | return ret; | |
63 | } | |
64 | ||
65 | ||
66 | static int ast_detect_chip(struct drm_device *dev) | |
67 | { | |
68 | struct ast_private *ast = dev->dev_private; | |
69 | ||
70 | if (dev->pdev->device == PCI_CHIP_AST1180) { | |
71 | ast->chip = AST1100; | |
72 | DRM_INFO("AST 1180 detected\n"); | |
73 | } else { | |
74 | if (dev->pdev->revision >= 0x20) { | |
75 | ast->chip = AST2300; | |
76 | DRM_INFO("AST 2300 detected\n"); | |
77 | } else if (dev->pdev->revision >= 0x10) { | |
78 | uint32_t data; | |
79 | ast_write32(ast, 0xf004, 0x1e6e0000); | |
80 | ast_write32(ast, 0xf000, 0x1); | |
81 | ||
82 | data = ast_read32(ast, 0x1207c); | |
83 | switch (data & 0x0300) { | |
84 | case 0x0200: | |
85 | ast->chip = AST1100; | |
86 | DRM_INFO("AST 1100 detected\n"); | |
87 | break; | |
88 | case 0x0100: | |
89 | ast->chip = AST2200; | |
90 | DRM_INFO("AST 2200 detected\n"); | |
91 | break; | |
92 | case 0x0000: | |
93 | ast->chip = AST2150; | |
94 | DRM_INFO("AST 2150 detected\n"); | |
95 | break; | |
96 | default: | |
97 | ast->chip = AST2100; | |
98 | DRM_INFO("AST 2100 detected\n"); | |
99 | break; | |
100 | } | |
101 | ast->vga2_clone = false; | |
102 | } else { | |
d287fccb | 103 | ast->chip = AST2000; |
312fec14 DA |
104 | DRM_INFO("AST 2000 detected\n"); |
105 | } | |
106 | } | |
107 | return 0; | |
108 | } | |
109 | ||
110 | static int ast_get_dram_info(struct drm_device *dev) | |
111 | { | |
112 | struct ast_private *ast = dev->dev_private; | |
113 | uint32_t data, data2; | |
114 | uint32_t denum, num, div, ref_pll; | |
115 | ||
116 | ast_write32(ast, 0xf004, 0x1e6e0000); | |
117 | ast_write32(ast, 0xf000, 0x1); | |
118 | ||
119 | ||
120 | ast_write32(ast, 0x10000, 0xfc600309); | |
121 | ||
122 | do { | |
0175d923 RC |
123 | if (pci_channel_offline(dev->pdev)) |
124 | return -EIO; | |
312fec14 DA |
125 | } while (ast_read32(ast, 0x10000) != 0x01); |
126 | data = ast_read32(ast, 0x10004); | |
127 | ||
eed92d81 | 128 | if (data & 0x40) |
312fec14 DA |
129 | ast->dram_bus_width = 16; |
130 | else | |
131 | ast->dram_bus_width = 32; | |
132 | ||
133 | if (ast->chip == AST2300) { | |
134 | switch (data & 0x03) { | |
135 | case 0: | |
136 | ast->dram_type = AST_DRAM_512Mx16; | |
137 | break; | |
138 | default: | |
139 | case 1: | |
140 | ast->dram_type = AST_DRAM_1Gx16; | |
141 | break; | |
142 | case 2: | |
143 | ast->dram_type = AST_DRAM_2Gx16; | |
144 | break; | |
145 | case 3: | |
146 | ast->dram_type = AST_DRAM_4Gx16; | |
147 | break; | |
148 | } | |
149 | } else { | |
150 | switch (data & 0x0c) { | |
151 | case 0: | |
152 | case 4: | |
153 | ast->dram_type = AST_DRAM_512Mx16; | |
154 | break; | |
155 | case 8: | |
156 | if (data & 0x40) | |
157 | ast->dram_type = AST_DRAM_1Gx16; | |
158 | else | |
159 | ast->dram_type = AST_DRAM_512Mx32; | |
160 | break; | |
161 | case 0xc: | |
162 | ast->dram_type = AST_DRAM_1Gx32; | |
163 | break; | |
164 | } | |
165 | } | |
166 | ||
167 | data = ast_read32(ast, 0x10120); | |
168 | data2 = ast_read32(ast, 0x10170); | |
169 | if (data2 & 0x2000) | |
170 | ref_pll = 14318; | |
171 | else | |
172 | ref_pll = 12000; | |
173 | ||
174 | denum = data & 0x1f; | |
175 | num = (data & 0x3fe0) >> 5; | |
176 | data = (data & 0xc000) >> 14; | |
177 | switch (data) { | |
178 | case 3: | |
179 | div = 0x4; | |
180 | break; | |
181 | case 2: | |
182 | case 1: | |
183 | div = 0x2; | |
184 | break; | |
185 | default: | |
186 | div = 0x1; | |
187 | break; | |
188 | } | |
189 | ast->mclk = ref_pll * (num + 2) / (denum + 2) * (div * 1000); | |
190 | return 0; | |
191 | } | |
192 | ||
193 | uint32_t ast_get_max_dclk(struct drm_device *dev, int bpp) | |
194 | { | |
195 | struct ast_private *ast = dev->dev_private; | |
196 | uint32_t dclk, jreg; | |
197 | uint32_t dram_bus_width, mclk, dram_bandwidth, actual_dram_bandwidth, dram_efficency = 500; | |
198 | ||
199 | dram_bus_width = ast->dram_bus_width; | |
200 | mclk = ast->mclk; | |
201 | ||
202 | if (ast->chip == AST2100 || | |
203 | ast->chip == AST1100 || | |
204 | ast->chip == AST2200 || | |
205 | ast->chip == AST2150 || | |
206 | ast->dram_bus_width == 16) | |
207 | dram_efficency = 600; | |
208 | else if (ast->chip == AST2300) | |
209 | dram_efficency = 400; | |
210 | ||
211 | dram_bandwidth = mclk * dram_bus_width * 2 / 8; | |
212 | actual_dram_bandwidth = dram_bandwidth * dram_efficency / 1000; | |
213 | ||
214 | if (ast->chip == AST1180) | |
215 | dclk = actual_dram_bandwidth / ((bpp + 1) / 8); | |
216 | else { | |
217 | jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd0, 0xff); | |
218 | if ((jreg & 0x08) && (ast->chip == AST2000)) | |
219 | dclk = actual_dram_bandwidth / ((bpp + 1 + 16) / 8); | |
220 | else if ((jreg & 0x08) && (bpp == 8)) | |
221 | dclk = actual_dram_bandwidth / ((bpp + 1 + 24) / 8); | |
222 | else | |
223 | dclk = actual_dram_bandwidth / ((bpp + 1) / 8); | |
224 | } | |
225 | ||
226 | if (ast->chip == AST2100 || | |
227 | ast->chip == AST2200 || | |
228 | ast->chip == AST2300 || | |
229 | ast->chip == AST1180) { | |
230 | if (dclk > 200) | |
231 | dclk = 200; | |
232 | } else { | |
233 | if (dclk > 165) | |
234 | dclk = 165; | |
235 | } | |
236 | ||
237 | return dclk; | |
238 | } | |
239 | ||
240 | static void ast_user_framebuffer_destroy(struct drm_framebuffer *fb) | |
241 | { | |
242 | struct ast_framebuffer *ast_fb = to_ast_framebuffer(fb); | |
243 | if (ast_fb->obj) | |
244 | drm_gem_object_unreference_unlocked(ast_fb->obj); | |
245 | ||
246 | drm_framebuffer_cleanup(fb); | |
247 | kfree(fb); | |
248 | } | |
249 | ||
312fec14 DA |
250 | static const struct drm_framebuffer_funcs ast_fb_funcs = { |
251 | .destroy = ast_user_framebuffer_destroy, | |
312fec14 DA |
252 | }; |
253 | ||
254 | ||
255 | int ast_framebuffer_init(struct drm_device *dev, | |
256 | struct ast_framebuffer *ast_fb, | |
257 | struct drm_mode_fb_cmd2 *mode_cmd, | |
258 | struct drm_gem_object *obj) | |
259 | { | |
260 | int ret; | |
261 | ||
c7d73f6a DV |
262 | drm_helper_mode_fill_fb_struct(&ast_fb->base, mode_cmd); |
263 | ast_fb->obj = obj; | |
312fec14 DA |
264 | ret = drm_framebuffer_init(dev, &ast_fb->base, &ast_fb_funcs); |
265 | if (ret) { | |
266 | DRM_ERROR("framebuffer init failed %d\n", ret); | |
267 | return ret; | |
268 | } | |
312fec14 DA |
269 | return 0; |
270 | } | |
271 | ||
272 | static struct drm_framebuffer * | |
273 | ast_user_framebuffer_create(struct drm_device *dev, | |
274 | struct drm_file *filp, | |
275 | struct drm_mode_fb_cmd2 *mode_cmd) | |
276 | { | |
277 | struct drm_gem_object *obj; | |
278 | struct ast_framebuffer *ast_fb; | |
279 | int ret; | |
280 | ||
281 | obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]); | |
282 | if (obj == NULL) | |
283 | return ERR_PTR(-ENOENT); | |
284 | ||
285 | ast_fb = kzalloc(sizeof(*ast_fb), GFP_KERNEL); | |
286 | if (!ast_fb) { | |
287 | drm_gem_object_unreference_unlocked(obj); | |
288 | return ERR_PTR(-ENOMEM); | |
289 | } | |
290 | ||
291 | ret = ast_framebuffer_init(dev, ast_fb, mode_cmd, obj); | |
292 | if (ret) { | |
293 | drm_gem_object_unreference_unlocked(obj); | |
294 | kfree(ast_fb); | |
295 | return ERR_PTR(ret); | |
296 | } | |
297 | return &ast_fb->base; | |
298 | } | |
299 | ||
300 | static const struct drm_mode_config_funcs ast_mode_funcs = { | |
301 | .fb_create = ast_user_framebuffer_create, | |
302 | }; | |
303 | ||
304 | static u32 ast_get_vram_info(struct drm_device *dev) | |
305 | { | |
306 | struct ast_private *ast = dev->dev_private; | |
307 | u8 jreg; | |
308 | ||
309 | ast_open_key(ast); | |
310 | ||
311 | jreg = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xaa, 0xff); | |
312 | switch (jreg & 3) { | |
313 | case 0: return AST_VIDMEM_SIZE_8M; | |
314 | case 1: return AST_VIDMEM_SIZE_16M; | |
315 | case 2: return AST_VIDMEM_SIZE_32M; | |
316 | case 3: return AST_VIDMEM_SIZE_64M; | |
317 | } | |
318 | return AST_VIDMEM_DEFAULT_SIZE; | |
319 | } | |
320 | ||
321 | int ast_driver_load(struct drm_device *dev, unsigned long flags) | |
322 | { | |
323 | struct ast_private *ast; | |
324 | int ret = 0; | |
325 | ||
326 | ast = kzalloc(sizeof(struct ast_private), GFP_KERNEL); | |
327 | if (!ast) | |
328 | return -ENOMEM; | |
329 | ||
330 | dev->dev_private = ast; | |
331 | ast->dev = dev; | |
332 | ||
333 | ast->regs = pci_iomap(dev->pdev, 1, 0); | |
334 | if (!ast->regs) { | |
335 | ret = -EIO; | |
336 | goto out_free; | |
337 | } | |
338 | ast->ioregs = pci_iomap(dev->pdev, 2, 0); | |
339 | if (!ast->ioregs) { | |
340 | ret = -EIO; | |
341 | goto out_free; | |
342 | } | |
343 | ||
344 | ast_detect_chip(dev); | |
345 | ||
346 | if (ast->chip != AST1180) { | |
0175d923 RC |
347 | ret = ast_get_dram_info(dev); |
348 | if (ret) | |
349 | goto out_free; | |
312fec14 DA |
350 | ast->vram_size = ast_get_vram_info(dev); |
351 | DRM_INFO("dram %d %d %d %08x\n", ast->mclk, ast->dram_type, ast->dram_bus_width, ast->vram_size); | |
352 | } | |
353 | ||
354 | ret = ast_mm_init(ast); | |
355 | if (ret) | |
356 | goto out_free; | |
357 | ||
358 | drm_mode_config_init(dev); | |
359 | ||
360 | dev->mode_config.funcs = (void *)&ast_mode_funcs; | |
361 | dev->mode_config.min_width = 0; | |
362 | dev->mode_config.min_height = 0; | |
363 | dev->mode_config.preferred_depth = 24; | |
364 | dev->mode_config.prefer_shadow = 1; | |
9f5bc010 | 365 | dev->mode_config.fb_base = pci_resource_start(ast->dev->pdev, 0); |
312fec14 DA |
366 | |
367 | if (ast->chip == AST2100 || | |
368 | ast->chip == AST2200 || | |
369 | ast->chip == AST2300 || | |
370 | ast->chip == AST1180) { | |
371 | dev->mode_config.max_width = 1920; | |
372 | dev->mode_config.max_height = 2048; | |
373 | } else { | |
374 | dev->mode_config.max_width = 1600; | |
375 | dev->mode_config.max_height = 1200; | |
376 | } | |
377 | ||
378 | ret = ast_mode_init(dev); | |
379 | if (ret) | |
380 | goto out_free; | |
381 | ||
382 | ret = ast_fbdev_init(dev); | |
383 | if (ret) | |
384 | goto out_free; | |
385 | ||
386 | return 0; | |
387 | out_free: | |
388 | kfree(ast); | |
389 | dev->dev_private = NULL; | |
390 | return ret; | |
391 | } | |
392 | ||
393 | int ast_driver_unload(struct drm_device *dev) | |
394 | { | |
395 | struct ast_private *ast = dev->dev_private; | |
396 | ||
397 | ast_mode_fini(dev); | |
398 | ast_fbdev_fini(dev); | |
399 | drm_mode_config_cleanup(dev); | |
400 | ||
401 | ast_mm_fini(ast); | |
402 | pci_iounmap(dev->pdev, ast->ioregs); | |
403 | pci_iounmap(dev->pdev, ast->regs); | |
404 | kfree(ast); | |
405 | return 0; | |
406 | } | |
407 | ||
408 | int ast_gem_create(struct drm_device *dev, | |
409 | u32 size, bool iskernel, | |
410 | struct drm_gem_object **obj) | |
411 | { | |
412 | struct ast_bo *astbo; | |
413 | int ret; | |
414 | ||
415 | *obj = NULL; | |
416 | ||
417 | size = roundup(size, PAGE_SIZE); | |
418 | if (size == 0) | |
419 | return -EINVAL; | |
420 | ||
421 | ret = ast_bo_create(dev, size, 0, 0, &astbo); | |
422 | if (ret) { | |
423 | if (ret != -ERESTARTSYS) | |
424 | DRM_ERROR("failed to allocate GEM object\n"); | |
425 | return ret; | |
426 | } | |
427 | *obj = &astbo->gem; | |
428 | return 0; | |
429 | } | |
430 | ||
431 | int ast_dumb_create(struct drm_file *file, | |
432 | struct drm_device *dev, | |
433 | struct drm_mode_create_dumb *args) | |
434 | { | |
435 | int ret; | |
436 | struct drm_gem_object *gobj; | |
437 | u32 handle; | |
438 | ||
439 | args->pitch = args->width * ((args->bpp + 7) / 8); | |
440 | args->size = args->pitch * args->height; | |
441 | ||
442 | ret = ast_gem_create(dev, args->size, false, | |
443 | &gobj); | |
444 | if (ret) | |
445 | return ret; | |
446 | ||
447 | ret = drm_gem_handle_create(file, gobj, &handle); | |
448 | drm_gem_object_unreference_unlocked(gobj); | |
449 | if (ret) | |
450 | return ret; | |
451 | ||
452 | args->handle = handle; | |
453 | return 0; | |
454 | } | |
455 | ||
456 | int ast_dumb_destroy(struct drm_file *file, | |
457 | struct drm_device *dev, | |
458 | uint32_t handle) | |
459 | { | |
460 | return drm_gem_handle_delete(file, handle); | |
461 | } | |
462 | ||
463 | int ast_gem_init_object(struct drm_gem_object *obj) | |
464 | { | |
465 | BUG(); | |
466 | return 0; | |
467 | } | |
468 | ||
469 | void ast_bo_unref(struct ast_bo **bo) | |
470 | { | |
471 | struct ttm_buffer_object *tbo; | |
472 | ||
473 | if ((*bo) == NULL) | |
474 | return; | |
475 | ||
476 | tbo = &((*bo)->bo); | |
477 | ttm_bo_unref(&tbo); | |
478 | if (tbo == NULL) | |
479 | *bo = NULL; | |
480 | ||
481 | } | |
482 | void ast_gem_free_object(struct drm_gem_object *obj) | |
483 | { | |
484 | struct ast_bo *ast_bo = gem_to_ast_bo(obj); | |
485 | ||
486 | if (!ast_bo) | |
487 | return; | |
488 | ast_bo_unref(&ast_bo); | |
489 | } | |
490 | ||
491 | ||
492 | static inline u64 ast_bo_mmap_offset(struct ast_bo *bo) | |
493 | { | |
494 | return bo->bo.addr_space_offset; | |
495 | } | |
496 | int | |
497 | ast_dumb_mmap_offset(struct drm_file *file, | |
498 | struct drm_device *dev, | |
499 | uint32_t handle, | |
500 | uint64_t *offset) | |
501 | { | |
502 | struct drm_gem_object *obj; | |
503 | int ret; | |
504 | struct ast_bo *bo; | |
505 | ||
506 | mutex_lock(&dev->struct_mutex); | |
507 | obj = drm_gem_object_lookup(dev, file, handle); | |
508 | if (obj == NULL) { | |
509 | ret = -ENOENT; | |
510 | goto out_unlock; | |
511 | } | |
512 | ||
513 | bo = gem_to_ast_bo(obj); | |
514 | *offset = ast_bo_mmap_offset(bo); | |
515 | ||
516 | drm_gem_object_unreference(obj); | |
517 | ret = 0; | |
518 | out_unlock: | |
519 | mutex_unlock(&dev->struct_mutex); | |
520 | return ret; | |
521 | ||
522 | } | |
523 |