Commit | Line | Data |
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771fe6b9 JG |
1 | /* |
2 | * Copyright 2008 Advanced Micro Devices, Inc. | |
3 | * Copyright 2008 Red Hat Inc. | |
4 | * Copyright 2009 Jerome Glisse. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the "Software"), | |
8 | * to deal in the Software without restriction, including without limitation | |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
10 | * and/or sell copies of the Software, and to permit persons to whom the | |
11 | * Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
22 | * OTHER DEALINGS IN THE SOFTWARE. | |
23 | * | |
24 | * Authors: Dave Airlie | |
25 | * Alex Deucher | |
26 | * Jerome Glisse | |
27 | */ | |
771fe6b9 | 28 | |
268ba0a9 | 29 | #include <linux/acpi.h> |
2ef79416 TZ |
30 | #include <linux/pci.h> |
31 | #include <linux/slab.h> | |
f9183127 SR |
32 | |
33 | #include <drm/drm_device.h> | |
f9183127 SR |
34 | |
35 | #include "atom.h" | |
36 | #include "radeon.h" | |
37 | #include "radeon_reg.h" | |
38 | ||
771fe6b9 JG |
39 | /* |
40 | * BIOS. | |
41 | */ | |
b442962a AD |
42 | |
43 | /* If you boot an IGP board with a discrete card as the primary, | |
44 | * the IGP rom is not accessible via the rom bar as the IGP rom is | |
45 | * part of the system bios. On boot, the system bios puts a | |
46 | * copy of the igp rom at the start of vram if a discrete card is | |
47 | * present. | |
48 | */ | |
49 | static bool igp_read_bios_from_vram(struct radeon_device *rdev) | |
50 | { | |
51 | uint8_t __iomem *bios; | |
52 | resource_size_t vram_base; | |
53 | resource_size_t size = 256 * 1024; /* ??? */ | |
54 | ||
8b5d8dec DA |
55 | if (!(rdev->flags & RADEON_IS_IGP)) |
56 | if (!radeon_card_posted(rdev)) | |
57 | return false; | |
58 | ||
b442962a | 59 | rdev->bios = NULL; |
01d73a69 | 60 | vram_base = pci_resource_start(rdev->pdev, 0); |
b442962a AD |
61 | bios = ioremap(vram_base, size); |
62 | if (!bios) { | |
b442962a AD |
63 | return false; |
64 | } | |
65 | ||
66 | if (size == 0 || bios[0] != 0x55 || bios[1] != 0xaa) { | |
67 | iounmap(bios); | |
b442962a AD |
68 | return false; |
69 | } | |
70 | rdev->bios = kmalloc(size, GFP_KERNEL); | |
71 | if (rdev->bios == NULL) { | |
72 | iounmap(bios); | |
b442962a AD |
73 | return false; |
74 | } | |
6a9ee8af | 75 | memcpy_fromio(rdev->bios, bios, size); |
b442962a AD |
76 | iounmap(bios); |
77 | return true; | |
78 | } | |
79 | ||
771fe6b9 JG |
80 | static bool radeon_read_bios(struct radeon_device *rdev) |
81 | { | |
f2c9e560 | 82 | uint8_t __iomem *bios, val1, val2; |
771fe6b9 JG |
83 | size_t size; |
84 | ||
85 | rdev->bios = NULL; | |
b442962a | 86 | /* XXX: some cards may return 0 for rom size? ddx has a workaround */ |
771fe6b9 JG |
87 | bios = pci_map_rom(rdev->pdev, &size); |
88 | if (!bios) { | |
89 | return false; | |
90 | } | |
91 | ||
f2c9e560 DM |
92 | val1 = readb(&bios[0]); |
93 | val2 = readb(&bios[1]); | |
94 | ||
95 | if (size == 0 || val1 != 0x55 || val2 != 0xaa) { | |
771fe6b9 JG |
96 | pci_unmap_rom(rdev->pdev, bios); |
97 | return false; | |
98 | } | |
f2c9e560 | 99 | rdev->bios = kzalloc(size, GFP_KERNEL); |
771fe6b9 JG |
100 | if (rdev->bios == NULL) { |
101 | pci_unmap_rom(rdev->pdev, bios); | |
102 | return false; | |
103 | } | |
f2c9e560 | 104 | memcpy_fromio(rdev->bios, bios, size); |
771fe6b9 JG |
105 | pci_unmap_rom(rdev->pdev, bios); |
106 | return true; | |
107 | } | |
108 | ||
06a08570 MG |
109 | static bool radeon_read_platform_bios(struct radeon_device *rdev) |
110 | { | |
72e0ef0e MR |
111 | phys_addr_t rom = rdev->pdev->rom; |
112 | size_t romlen = rdev->pdev->romlen; | |
113 | void __iomem *bios; | |
06a08570 MG |
114 | |
115 | rdev->bios = NULL; | |
116 | ||
72e0ef0e | 117 | if (!rom || romlen == 0) |
06a08570 | 118 | return false; |
06a08570 | 119 | |
72e0ef0e MR |
120 | rdev->bios = kzalloc(romlen, GFP_KERNEL); |
121 | if (!rdev->bios) | |
06a08570 | 122 | return false; |
72e0ef0e MR |
123 | |
124 | bios = ioremap(rom, romlen); | |
125 | if (!bios) | |
126 | goto free_bios; | |
127 | ||
128 | memcpy_fromio(rdev->bios, bios, romlen); | |
129 | iounmap(bios); | |
130 | ||
131 | if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) | |
132 | goto free_bios; | |
06a08570 MG |
133 | |
134 | return true; | |
72e0ef0e MR |
135 | free_bios: |
136 | kfree(rdev->bios); | |
137 | return false; | |
06a08570 MG |
138 | } |
139 | ||
c61e2775 | 140 | #ifdef CONFIG_ACPI |
6a9ee8af DA |
141 | /* ATRM is used to get the BIOS on the discrete cards in |
142 | * dual-gpu systems. | |
143 | */ | |
c61e2775 AD |
144 | /* retrieve the ROM in 4k blocks */ |
145 | #define ATRM_BIOS_PAGE 4096 | |
146 | /** | |
147 | * radeon_atrm_call - fetch a chunk of the vbios | |
148 | * | |
149 | * @atrm_handle: acpi ATRM handle | |
150 | * @bios: vbios image pointer | |
151 | * @offset: offset of vbios image data to fetch | |
152 | * @len: length of vbios image data to fetch | |
153 | * | |
154 | * Executes ATRM to fetch a chunk of the discrete | |
155 | * vbios image on PX systems (all asics). | |
156 | * Returns the length of the buffer fetched. | |
157 | */ | |
158 | static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios, | |
159 | int offset, int len) | |
160 | { | |
161 | acpi_status status; | |
162 | union acpi_object atrm_arg_elements[2], *obj; | |
163 | struct acpi_object_list atrm_arg; | |
164 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL}; | |
165 | ||
166 | atrm_arg.count = 2; | |
167 | atrm_arg.pointer = &atrm_arg_elements[0]; | |
168 | ||
169 | atrm_arg_elements[0].type = ACPI_TYPE_INTEGER; | |
170 | atrm_arg_elements[0].integer.value = offset; | |
171 | ||
172 | atrm_arg_elements[1].type = ACPI_TYPE_INTEGER; | |
173 | atrm_arg_elements[1].integer.value = len; | |
174 | ||
175 | status = acpi_evaluate_object(atrm_handle, NULL, &atrm_arg, &buffer); | |
176 | if (ACPI_FAILURE(status)) { | |
177 | printk("failed to evaluate ATRM got %s\n", acpi_format_exception(status)); | |
178 | return -ENODEV; | |
179 | } | |
180 | ||
181 | obj = (union acpi_object *)buffer.pointer; | |
182 | memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length); | |
183 | len = obj->buffer.length; | |
184 | kfree(buffer.pointer); | |
185 | return len; | |
186 | } | |
187 | ||
6a9ee8af DA |
188 | static bool radeon_atrm_get_bios(struct radeon_device *rdev) |
189 | { | |
190 | int ret; | |
b271a988 | 191 | int size = 256 * 1024; |
6a9ee8af | 192 | int i; |
c61e2775 AD |
193 | struct pci_dev *pdev = NULL; |
194 | acpi_handle dhandle, atrm_handle; | |
195 | acpi_status status; | |
196 | bool found = false; | |
197 | ||
198 | /* ATRM is for the discrete card only */ | |
199 | if (rdev->flags & RADEON_IS_IGP) | |
200 | return false; | |
201 | ||
b5fc0403 SJ |
202 | while ((pdev = pci_get_base_class(PCI_BASE_CLASS_DISPLAY, pdev))) { |
203 | if ((pdev->class != PCI_CLASS_DISPLAY_VGA << 8) && | |
204 | (pdev->class != PCI_CLASS_DISPLAY_OTHER << 8)) | |
205 | continue; | |
206 | ||
3a83f992 | 207 | dhandle = ACPI_HANDLE(&pdev->dev); |
c61e2775 AD |
208 | if (!dhandle) |
209 | continue; | |
6a9ee8af | 210 | |
c61e2775 | 211 | status = acpi_get_handle(dhandle, "ATRM", &atrm_handle); |
10e92724 | 212 | if (ACPI_SUCCESS(status)) { |
c61e2775 AD |
213 | found = true; |
214 | break; | |
215 | } | |
216 | } | |
217 | ||
218 | if (!found) | |
6a9ee8af | 219 | return false; |
725a521a | 220 | pci_dev_put(pdev); |
6a9ee8af DA |
221 | |
222 | rdev->bios = kmalloc(size, GFP_KERNEL); | |
223 | if (!rdev->bios) { | |
224 | DRM_ERROR("Unable to allocate bios\n"); | |
225 | return false; | |
226 | } | |
227 | ||
228 | for (i = 0; i < size / ATRM_BIOS_PAGE; i++) { | |
c61e2775 AD |
229 | ret = radeon_atrm_call(atrm_handle, |
230 | rdev->bios, | |
231 | (i * ATRM_BIOS_PAGE), | |
232 | ATRM_BIOS_PAGE); | |
211fa4fc | 233 | if (ret < ATRM_BIOS_PAGE) |
6a9ee8af DA |
234 | break; |
235 | } | |
236 | ||
237 | if (i == 0 || rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) { | |
238 | kfree(rdev->bios); | |
239 | return false; | |
240 | } | |
241 | return true; | |
242 | } | |
c61e2775 AD |
243 | #else |
244 | static inline bool radeon_atrm_get_bios(struct radeon_device *rdev) | |
245 | { | |
246 | return false; | |
247 | } | |
248 | #endif | |
0ec80d64 | 249 | |
c901bcdd AD |
250 | static bool ni_read_disabled_bios(struct radeon_device *rdev) |
251 | { | |
252 | u32 bus_cntl; | |
253 | u32 d1vga_control; | |
254 | u32 d2vga_control; | |
255 | u32 vga_render_control; | |
256 | u32 rom_cntl; | |
257 | bool r; | |
258 | ||
259 | bus_cntl = RREG32(R600_BUS_CNTL); | |
260 | d1vga_control = RREG32(AVIVO_D1VGA_CONTROL); | |
261 | d2vga_control = RREG32(AVIVO_D2VGA_CONTROL); | |
262 | vga_render_control = RREG32(AVIVO_VGA_RENDER_CONTROL); | |
263 | rom_cntl = RREG32(R600_ROM_CNTL); | |
264 | ||
265 | /* enable the rom */ | |
266 | WREG32(R600_BUS_CNTL, (bus_cntl & ~R600_BIOS_ROM_DIS)); | |
5153550a AD |
267 | if (!ASIC_IS_NODCE(rdev)) { |
268 | /* Disable VGA mode */ | |
269 | WREG32(AVIVO_D1VGA_CONTROL, | |
270 | (d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE | | |
271 | AVIVO_DVGA_CONTROL_TIMING_SELECT))); | |
272 | WREG32(AVIVO_D2VGA_CONTROL, | |
273 | (d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE | | |
274 | AVIVO_DVGA_CONTROL_TIMING_SELECT))); | |
275 | WREG32(AVIVO_VGA_RENDER_CONTROL, | |
276 | (vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK)); | |
277 | } | |
c901bcdd AD |
278 | WREG32(R600_ROM_CNTL, rom_cntl | R600_SCK_OVERWRITE); |
279 | ||
280 | r = radeon_read_bios(rdev); | |
281 | ||
282 | /* restore regs */ | |
283 | WREG32(R600_BUS_CNTL, bus_cntl); | |
5153550a AD |
284 | if (!ASIC_IS_NODCE(rdev)) { |
285 | WREG32(AVIVO_D1VGA_CONTROL, d1vga_control); | |
286 | WREG32(AVIVO_D2VGA_CONTROL, d2vga_control); | |
287 | WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control); | |
288 | } | |
c901bcdd AD |
289 | WREG32(R600_ROM_CNTL, rom_cntl); |
290 | return r; | |
291 | } | |
292 | ||
771fe6b9 JG |
293 | static bool r700_read_disabled_bios(struct radeon_device *rdev) |
294 | { | |
295 | uint32_t viph_control; | |
296 | uint32_t bus_cntl; | |
297 | uint32_t d1vga_control; | |
298 | uint32_t d2vga_control; | |
299 | uint32_t vga_render_control; | |
300 | uint32_t rom_cntl; | |
301 | uint32_t cg_spll_func_cntl = 0; | |
302 | uint32_t cg_spll_status; | |
303 | bool r; | |
304 | ||
305 | viph_control = RREG32(RADEON_VIPH_CONTROL); | |
0ec80d64 | 306 | bus_cntl = RREG32(R600_BUS_CNTL); |
771fe6b9 JG |
307 | d1vga_control = RREG32(AVIVO_D1VGA_CONTROL); |
308 | d2vga_control = RREG32(AVIVO_D2VGA_CONTROL); | |
309 | vga_render_control = RREG32(AVIVO_VGA_RENDER_CONTROL); | |
310 | rom_cntl = RREG32(R600_ROM_CNTL); | |
311 | ||
312 | /* disable VIP */ | |
313 | WREG32(RADEON_VIPH_CONTROL, (viph_control & ~RADEON_VIPH_EN)); | |
314 | /* enable the rom */ | |
0ec80d64 | 315 | WREG32(R600_BUS_CNTL, (bus_cntl & ~R600_BIOS_ROM_DIS)); |
771fe6b9 JG |
316 | /* Disable VGA mode */ |
317 | WREG32(AVIVO_D1VGA_CONTROL, | |
318 | (d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE | | |
319 | AVIVO_DVGA_CONTROL_TIMING_SELECT))); | |
320 | WREG32(AVIVO_D2VGA_CONTROL, | |
321 | (d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE | | |
322 | AVIVO_DVGA_CONTROL_TIMING_SELECT))); | |
323 | WREG32(AVIVO_VGA_RENDER_CONTROL, | |
324 | (vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK)); | |
325 | ||
326 | if (rdev->family == CHIP_RV730) { | |
327 | cg_spll_func_cntl = RREG32(R600_CG_SPLL_FUNC_CNTL); | |
328 | ||
329 | /* enable bypass mode */ | |
330 | WREG32(R600_CG_SPLL_FUNC_CNTL, (cg_spll_func_cntl | | |
331 | R600_SPLL_BYPASS_EN)); | |
332 | ||
333 | /* wait for SPLL_CHG_STATUS to change to 1 */ | |
334 | cg_spll_status = 0; | |
335 | while (!(cg_spll_status & R600_SPLL_CHG_STATUS)) | |
336 | cg_spll_status = RREG32(R600_CG_SPLL_STATUS); | |
337 | ||
338 | WREG32(R600_ROM_CNTL, (rom_cntl & ~R600_SCK_OVERWRITE)); | |
339 | } else | |
340 | WREG32(R600_ROM_CNTL, (rom_cntl | R600_SCK_OVERWRITE)); | |
341 | ||
342 | r = radeon_read_bios(rdev); | |
343 | ||
344 | /* restore regs */ | |
345 | if (rdev->family == CHIP_RV730) { | |
346 | WREG32(R600_CG_SPLL_FUNC_CNTL, cg_spll_func_cntl); | |
347 | ||
348 | /* wait for SPLL_CHG_STATUS to change to 1 */ | |
349 | cg_spll_status = 0; | |
350 | while (!(cg_spll_status & R600_SPLL_CHG_STATUS)) | |
351 | cg_spll_status = RREG32(R600_CG_SPLL_STATUS); | |
352 | } | |
353 | WREG32(RADEON_VIPH_CONTROL, viph_control); | |
0ec80d64 | 354 | WREG32(R600_BUS_CNTL, bus_cntl); |
771fe6b9 JG |
355 | WREG32(AVIVO_D1VGA_CONTROL, d1vga_control); |
356 | WREG32(AVIVO_D2VGA_CONTROL, d2vga_control); | |
357 | WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control); | |
358 | WREG32(R600_ROM_CNTL, rom_cntl); | |
359 | return r; | |
360 | } | |
361 | ||
362 | static bool r600_read_disabled_bios(struct radeon_device *rdev) | |
363 | { | |
364 | uint32_t viph_control; | |
365 | uint32_t bus_cntl; | |
366 | uint32_t d1vga_control; | |
367 | uint32_t d2vga_control; | |
368 | uint32_t vga_render_control; | |
369 | uint32_t rom_cntl; | |
370 | uint32_t general_pwrmgt; | |
371 | uint32_t low_vid_lower_gpio_cntl; | |
372 | uint32_t medium_vid_lower_gpio_cntl; | |
373 | uint32_t high_vid_lower_gpio_cntl; | |
374 | uint32_t ctxsw_vid_lower_gpio_cntl; | |
375 | uint32_t lower_gpio_enable; | |
376 | bool r; | |
377 | ||
378 | viph_control = RREG32(RADEON_VIPH_CONTROL); | |
0ec80d64 | 379 | bus_cntl = RREG32(R600_BUS_CNTL); |
771fe6b9 JG |
380 | d1vga_control = RREG32(AVIVO_D1VGA_CONTROL); |
381 | d2vga_control = RREG32(AVIVO_D2VGA_CONTROL); | |
382 | vga_render_control = RREG32(AVIVO_VGA_RENDER_CONTROL); | |
383 | rom_cntl = RREG32(R600_ROM_CNTL); | |
384 | general_pwrmgt = RREG32(R600_GENERAL_PWRMGT); | |
385 | low_vid_lower_gpio_cntl = RREG32(R600_LOW_VID_LOWER_GPIO_CNTL); | |
386 | medium_vid_lower_gpio_cntl = RREG32(R600_MEDIUM_VID_LOWER_GPIO_CNTL); | |
387 | high_vid_lower_gpio_cntl = RREG32(R600_HIGH_VID_LOWER_GPIO_CNTL); | |
388 | ctxsw_vid_lower_gpio_cntl = RREG32(R600_CTXSW_VID_LOWER_GPIO_CNTL); | |
389 | lower_gpio_enable = RREG32(R600_LOWER_GPIO_ENABLE); | |
390 | ||
391 | /* disable VIP */ | |
392 | WREG32(RADEON_VIPH_CONTROL, (viph_control & ~RADEON_VIPH_EN)); | |
393 | /* enable the rom */ | |
0ec80d64 | 394 | WREG32(R600_BUS_CNTL, (bus_cntl & ~R600_BIOS_ROM_DIS)); |
771fe6b9 JG |
395 | /* Disable VGA mode */ |
396 | WREG32(AVIVO_D1VGA_CONTROL, | |
397 | (d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE | | |
398 | AVIVO_DVGA_CONTROL_TIMING_SELECT))); | |
399 | WREG32(AVIVO_D2VGA_CONTROL, | |
400 | (d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE | | |
401 | AVIVO_DVGA_CONTROL_TIMING_SELECT))); | |
402 | WREG32(AVIVO_VGA_RENDER_CONTROL, | |
403 | (vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK)); | |
404 | ||
405 | WREG32(R600_ROM_CNTL, | |
406 | ((rom_cntl & ~R600_SCK_PRESCALE_CRYSTAL_CLK_MASK) | | |
407 | (1 << R600_SCK_PRESCALE_CRYSTAL_CLK_SHIFT) | | |
408 | R600_SCK_OVERWRITE)); | |
409 | ||
410 | WREG32(R600_GENERAL_PWRMGT, (general_pwrmgt & ~R600_OPEN_DRAIN_PADS)); | |
411 | WREG32(R600_LOW_VID_LOWER_GPIO_CNTL, | |
412 | (low_vid_lower_gpio_cntl & ~0x400)); | |
413 | WREG32(R600_MEDIUM_VID_LOWER_GPIO_CNTL, | |
414 | (medium_vid_lower_gpio_cntl & ~0x400)); | |
415 | WREG32(R600_HIGH_VID_LOWER_GPIO_CNTL, | |
416 | (high_vid_lower_gpio_cntl & ~0x400)); | |
417 | WREG32(R600_CTXSW_VID_LOWER_GPIO_CNTL, | |
418 | (ctxsw_vid_lower_gpio_cntl & ~0x400)); | |
419 | WREG32(R600_LOWER_GPIO_ENABLE, (lower_gpio_enable | 0x400)); | |
420 | ||
421 | r = radeon_read_bios(rdev); | |
422 | ||
423 | /* restore regs */ | |
424 | WREG32(RADEON_VIPH_CONTROL, viph_control); | |
0ec80d64 | 425 | WREG32(R600_BUS_CNTL, bus_cntl); |
771fe6b9 JG |
426 | WREG32(AVIVO_D1VGA_CONTROL, d1vga_control); |
427 | WREG32(AVIVO_D2VGA_CONTROL, d2vga_control); | |
428 | WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control); | |
429 | WREG32(R600_ROM_CNTL, rom_cntl); | |
430 | WREG32(R600_GENERAL_PWRMGT, general_pwrmgt); | |
431 | WREG32(R600_LOW_VID_LOWER_GPIO_CNTL, low_vid_lower_gpio_cntl); | |
432 | WREG32(R600_MEDIUM_VID_LOWER_GPIO_CNTL, medium_vid_lower_gpio_cntl); | |
433 | WREG32(R600_HIGH_VID_LOWER_GPIO_CNTL, high_vid_lower_gpio_cntl); | |
434 | WREG32(R600_CTXSW_VID_LOWER_GPIO_CNTL, ctxsw_vid_lower_gpio_cntl); | |
435 | WREG32(R600_LOWER_GPIO_ENABLE, lower_gpio_enable); | |
436 | return r; | |
437 | } | |
438 | ||
439 | static bool avivo_read_disabled_bios(struct radeon_device *rdev) | |
440 | { | |
441 | uint32_t seprom_cntl1; | |
442 | uint32_t viph_control; | |
443 | uint32_t bus_cntl; | |
444 | uint32_t d1vga_control; | |
445 | uint32_t d2vga_control; | |
446 | uint32_t vga_render_control; | |
447 | uint32_t gpiopad_a; | |
448 | uint32_t gpiopad_en; | |
449 | uint32_t gpiopad_mask; | |
450 | bool r; | |
451 | ||
452 | seprom_cntl1 = RREG32(RADEON_SEPROM_CNTL1); | |
453 | viph_control = RREG32(RADEON_VIPH_CONTROL); | |
4171424e | 454 | bus_cntl = RREG32(RV370_BUS_CNTL); |
771fe6b9 JG |
455 | d1vga_control = RREG32(AVIVO_D1VGA_CONTROL); |
456 | d2vga_control = RREG32(AVIVO_D2VGA_CONTROL); | |
457 | vga_render_control = RREG32(AVIVO_VGA_RENDER_CONTROL); | |
458 | gpiopad_a = RREG32(RADEON_GPIOPAD_A); | |
459 | gpiopad_en = RREG32(RADEON_GPIOPAD_EN); | |
460 | gpiopad_mask = RREG32(RADEON_GPIOPAD_MASK); | |
461 | ||
462 | WREG32(RADEON_SEPROM_CNTL1, | |
463 | ((seprom_cntl1 & ~RADEON_SCK_PRESCALE_MASK) | | |
464 | (0xc << RADEON_SCK_PRESCALE_SHIFT))); | |
465 | WREG32(RADEON_GPIOPAD_A, 0); | |
466 | WREG32(RADEON_GPIOPAD_EN, 0); | |
467 | WREG32(RADEON_GPIOPAD_MASK, 0); | |
468 | ||
469 | /* disable VIP */ | |
470 | WREG32(RADEON_VIPH_CONTROL, (viph_control & ~RADEON_VIPH_EN)); | |
471 | ||
472 | /* enable the rom */ | |
4171424e | 473 | WREG32(RV370_BUS_CNTL, (bus_cntl & ~RV370_BUS_BIOS_DIS_ROM)); |
771fe6b9 JG |
474 | |
475 | /* Disable VGA mode */ | |
476 | WREG32(AVIVO_D1VGA_CONTROL, | |
477 | (d1vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE | | |
478 | AVIVO_DVGA_CONTROL_TIMING_SELECT))); | |
479 | WREG32(AVIVO_D2VGA_CONTROL, | |
480 | (d2vga_control & ~(AVIVO_DVGA_CONTROL_MODE_ENABLE | | |
481 | AVIVO_DVGA_CONTROL_TIMING_SELECT))); | |
482 | WREG32(AVIVO_VGA_RENDER_CONTROL, | |
483 | (vga_render_control & ~AVIVO_VGA_VSTATUS_CNTL_MASK)); | |
484 | ||
485 | r = radeon_read_bios(rdev); | |
486 | ||
487 | /* restore regs */ | |
488 | WREG32(RADEON_SEPROM_CNTL1, seprom_cntl1); | |
489 | WREG32(RADEON_VIPH_CONTROL, viph_control); | |
4171424e | 490 | WREG32(RV370_BUS_CNTL, bus_cntl); |
771fe6b9 JG |
491 | WREG32(AVIVO_D1VGA_CONTROL, d1vga_control); |
492 | WREG32(AVIVO_D2VGA_CONTROL, d2vga_control); | |
493 | WREG32(AVIVO_VGA_RENDER_CONTROL, vga_render_control); | |
494 | WREG32(RADEON_GPIOPAD_A, gpiopad_a); | |
495 | WREG32(RADEON_GPIOPAD_EN, gpiopad_en); | |
496 | WREG32(RADEON_GPIOPAD_MASK, gpiopad_mask); | |
497 | return r; | |
498 | } | |
499 | ||
500 | static bool legacy_read_disabled_bios(struct radeon_device *rdev) | |
501 | { | |
502 | uint32_t seprom_cntl1; | |
503 | uint32_t viph_control; | |
504 | uint32_t bus_cntl; | |
505 | uint32_t crtc_gen_cntl; | |
506 | uint32_t crtc2_gen_cntl; | |
507 | uint32_t crtc_ext_cntl; | |
508 | uint32_t fp2_gen_cntl; | |
509 | bool r; | |
510 | ||
511 | seprom_cntl1 = RREG32(RADEON_SEPROM_CNTL1); | |
512 | viph_control = RREG32(RADEON_VIPH_CONTROL); | |
4171424e AD |
513 | if (rdev->flags & RADEON_IS_PCIE) |
514 | bus_cntl = RREG32(RV370_BUS_CNTL); | |
515 | else | |
516 | bus_cntl = RREG32(RADEON_BUS_CNTL); | |
771fe6b9 JG |
517 | crtc_gen_cntl = RREG32(RADEON_CRTC_GEN_CNTL); |
518 | crtc2_gen_cntl = 0; | |
519 | crtc_ext_cntl = RREG32(RADEON_CRTC_EXT_CNTL); | |
520 | fp2_gen_cntl = 0; | |
521 | ||
d86a4126 | 522 | if (rdev->pdev->device == PCI_DEVICE_ID_ATI_RADEON_QY) { |
771fe6b9 JG |
523 | fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL); |
524 | } | |
525 | ||
526 | if (!(rdev->flags & RADEON_SINGLE_CRTC)) { | |
527 | crtc2_gen_cntl = RREG32(RADEON_CRTC2_GEN_CNTL); | |
528 | } | |
529 | ||
530 | WREG32(RADEON_SEPROM_CNTL1, | |
531 | ((seprom_cntl1 & ~RADEON_SCK_PRESCALE_MASK) | | |
532 | (0xc << RADEON_SCK_PRESCALE_SHIFT))); | |
533 | ||
534 | /* disable VIP */ | |
535 | WREG32(RADEON_VIPH_CONTROL, (viph_control & ~RADEON_VIPH_EN)); | |
536 | ||
537 | /* enable the rom */ | |
4171424e AD |
538 | if (rdev->flags & RADEON_IS_PCIE) |
539 | WREG32(RV370_BUS_CNTL, (bus_cntl & ~RV370_BUS_BIOS_DIS_ROM)); | |
540 | else | |
541 | WREG32(RADEON_BUS_CNTL, (bus_cntl & ~RADEON_BUS_BIOS_DIS_ROM)); | |
771fe6b9 JG |
542 | |
543 | /* Turn off mem requests and CRTC for both controllers */ | |
544 | WREG32(RADEON_CRTC_GEN_CNTL, | |
545 | ((crtc_gen_cntl & ~RADEON_CRTC_EN) | | |
546 | (RADEON_CRTC_DISP_REQ_EN_B | | |
547 | RADEON_CRTC_EXT_DISP_EN))); | |
548 | if (!(rdev->flags & RADEON_SINGLE_CRTC)) { | |
549 | WREG32(RADEON_CRTC2_GEN_CNTL, | |
550 | ((crtc2_gen_cntl & ~RADEON_CRTC2_EN) | | |
551 | RADEON_CRTC2_DISP_REQ_EN_B)); | |
552 | } | |
553 | /* Turn off CRTC */ | |
554 | WREG32(RADEON_CRTC_EXT_CNTL, | |
555 | ((crtc_ext_cntl & ~RADEON_CRTC_CRT_ON) | | |
556 | (RADEON_CRTC_SYNC_TRISTAT | | |
557 | RADEON_CRTC_DISPLAY_DIS))); | |
558 | ||
d86a4126 | 559 | if (rdev->pdev->device == PCI_DEVICE_ID_ATI_RADEON_QY) { |
771fe6b9 JG |
560 | WREG32(RADEON_FP2_GEN_CNTL, (fp2_gen_cntl & ~RADEON_FP2_ON)); |
561 | } | |
562 | ||
563 | r = radeon_read_bios(rdev); | |
564 | ||
565 | /* restore regs */ | |
566 | WREG32(RADEON_SEPROM_CNTL1, seprom_cntl1); | |
567 | WREG32(RADEON_VIPH_CONTROL, viph_control); | |
4171424e AD |
568 | if (rdev->flags & RADEON_IS_PCIE) |
569 | WREG32(RV370_BUS_CNTL, bus_cntl); | |
570 | else | |
571 | WREG32(RADEON_BUS_CNTL, bus_cntl); | |
771fe6b9 JG |
572 | WREG32(RADEON_CRTC_GEN_CNTL, crtc_gen_cntl); |
573 | if (!(rdev->flags & RADEON_SINGLE_CRTC)) { | |
574 | WREG32(RADEON_CRTC2_GEN_CNTL, crtc2_gen_cntl); | |
575 | } | |
576 | WREG32(RADEON_CRTC_EXT_CNTL, crtc_ext_cntl); | |
d86a4126 | 577 | if (rdev->pdev->device == PCI_DEVICE_ID_ATI_RADEON_QY) { |
771fe6b9 JG |
578 | WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl); |
579 | } | |
580 | return r; | |
581 | } | |
582 | ||
583 | static bool radeon_read_disabled_bios(struct radeon_device *rdev) | |
584 | { | |
b442962a AD |
585 | if (rdev->flags & RADEON_IS_IGP) |
586 | return igp_read_bios_from_vram(rdev); | |
c901bcdd AD |
587 | else if (rdev->family >= CHIP_BARTS) |
588 | return ni_read_disabled_bios(rdev); | |
b442962a | 589 | else if (rdev->family >= CHIP_RV770) |
771fe6b9 JG |
590 | return r700_read_disabled_bios(rdev); |
591 | else if (rdev->family >= CHIP_R600) | |
592 | return r600_read_disabled_bios(rdev); | |
593 | else if (rdev->family >= CHIP_RS600) | |
594 | return avivo_read_disabled_bios(rdev); | |
595 | else | |
596 | return legacy_read_disabled_bios(rdev); | |
597 | } | |
598 | ||
268ba0a9 DL |
599 | #ifdef CONFIG_ACPI |
600 | static bool radeon_acpi_vfct_bios(struct radeon_device *rdev) | |
601 | { | |
268ba0a9 | 602 | struct acpi_table_header *hdr; |
7c3906d0 | 603 | acpi_size tbl_size; |
268ba0a9 | 604 | UEFI_ACPI_VFCT *vfct; |
a882f5de | 605 | unsigned offset; |
10276a20 | 606 | bool r = false; |
268ba0a9 | 607 | |
6b11d1d6 | 608 | if (!ACPI_SUCCESS(acpi_get_table("VFCT", 1, &hdr))) |
268ba0a9 | 609 | return false; |
6b11d1d6 | 610 | tbl_size = hdr->length; |
268ba0a9 DL |
611 | if (tbl_size < sizeof(UEFI_ACPI_VFCT)) { |
612 | DRM_ERROR("ACPI VFCT table present but broken (too short #1)\n"); | |
10276a20 | 613 | goto out; |
268ba0a9 DL |
614 | } |
615 | ||
616 | vfct = (UEFI_ACPI_VFCT *)hdr; | |
a882f5de | 617 | offset = vfct->VBIOSImageOffset; |
268ba0a9 | 618 | |
a882f5de AD |
619 | while (offset < tbl_size) { |
620 | GOP_VBIOS_CONTENT *vbios = (GOP_VBIOS_CONTENT *)((char *)hdr + offset); | |
621 | VFCT_IMAGE_HEADER *vhdr = &vbios->VbiosHeader; | |
268ba0a9 | 622 | |
a882f5de AD |
623 | offset += sizeof(VFCT_IMAGE_HEADER); |
624 | if (offset > tbl_size) { | |
625 | DRM_ERROR("ACPI VFCT image header truncated\n"); | |
10276a20 | 626 | goto out; |
a882f5de | 627 | } |
268ba0a9 | 628 | |
a882f5de AD |
629 | offset += vhdr->ImageLength; |
630 | if (offset > tbl_size) { | |
631 | DRM_ERROR("ACPI VFCT image truncated\n"); | |
10276a20 | 632 | goto out; |
a882f5de AD |
633 | } |
634 | ||
635 | if (vhdr->ImageLength && | |
636 | vhdr->PCIBus == rdev->pdev->bus->number && | |
637 | vhdr->PCIDevice == PCI_SLOT(rdev->pdev->devfn) && | |
638 | vhdr->PCIFunction == PCI_FUNC(rdev->pdev->devfn) && | |
639 | vhdr->VendorID == rdev->pdev->vendor && | |
640 | vhdr->DeviceID == rdev->pdev->device) { | |
641 | rdev->bios = kmemdup(&vbios->VbiosContent, | |
642 | vhdr->ImageLength, | |
643 | GFP_KERNEL); | |
10276a20 HG |
644 | if (rdev->bios) |
645 | r = true; | |
a882f5de | 646 | |
10276a20 | 647 | goto out; |
a882f5de AD |
648 | } |
649 | } | |
268ba0a9 | 650 | |
a882f5de | 651 | DRM_ERROR("ACPI VFCT table present but broken (too short #2)\n"); |
10276a20 HG |
652 | |
653 | out: | |
654 | acpi_put_table(hdr); | |
655 | return r; | |
268ba0a9 DL |
656 | } |
657 | #else | |
658 | static inline bool radeon_acpi_vfct_bios(struct radeon_device *rdev) | |
659 | { | |
660 | return false; | |
661 | } | |
662 | #endif | |
6a9ee8af | 663 | |
771fe6b9 JG |
664 | bool radeon_get_bios(struct radeon_device *rdev) |
665 | { | |
666 | bool r; | |
667 | uint16_t tmp; | |
668 | ||
6a9ee8af | 669 | r = radeon_atrm_get_bios(rdev); |
fbd62354 | 670 | if (!r) |
268ba0a9 | 671 | r = radeon_acpi_vfct_bios(rdev); |
fbd62354 | 672 | if (!r) |
b442962a | 673 | r = igp_read_bios_from_vram(rdev); |
fbd62354 | 674 | if (!r) |
b442962a | 675 | r = radeon_read_bios(rdev); |
fbd62354 | 676 | if (!r) |
771fe6b9 | 677 | r = radeon_read_disabled_bios(rdev); |
fbd62354 | 678 | if (!r) |
06a08570 | 679 | r = radeon_read_platform_bios(rdev); |
fbd62354 | 680 | if (!r || rdev->bios == NULL) { |
771fe6b9 JG |
681 | DRM_ERROR("Unable to locate a BIOS ROM\n"); |
682 | rdev->bios = NULL; | |
683 | return false; | |
684 | } | |
685 | if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa) { | |
6a9ee8af | 686 | printk("BIOS signature incorrect %x %x\n", rdev->bios[0], rdev->bios[1]); |
771fe6b9 JG |
687 | goto free_bios; |
688 | } | |
689 | ||
e3439895 DA |
690 | tmp = RBIOS16(0x18); |
691 | if (RBIOS8(tmp + 0x14) != 0x0) { | |
692 | DRM_INFO("Not an x86 BIOS ROM, not using.\n"); | |
693 | goto free_bios; | |
694 | } | |
695 | ||
771fe6b9 JG |
696 | rdev->bios_header_start = RBIOS16(0x48); |
697 | if (!rdev->bios_header_start) { | |
698 | goto free_bios; | |
699 | } | |
700 | tmp = rdev->bios_header_start + 4; | |
701 | if (!memcmp(rdev->bios + tmp, "ATOM", 4) || | |
702 | !memcmp(rdev->bios + tmp, "MOTA", 4)) { | |
703 | rdev->is_atom_bios = true; | |
704 | } else { | |
705 | rdev->is_atom_bios = false; | |
706 | } | |
707 | ||
708 | DRM_DEBUG("%sBIOS detected\n", rdev->is_atom_bios ? "ATOM" : "COM"); | |
709 | return true; | |
710 | free_bios: | |
711 | kfree(rdev->bios); | |
712 | rdev->bios = NULL; | |
713 | return false; | |
714 | } |