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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 | */ | |
28 | #include <linux/seq_file.h> | |
29 | #include <drm/drmP.h> | |
30 | #include "radeon_reg.h" | |
31 | #include "radeon.h" | |
c93bb85b | 32 | #include "radeon_share.h" |
771fe6b9 JG |
33 | |
34 | /* rs400,rs480 depends on : */ | |
35 | void r100_hdp_reset(struct radeon_device *rdev); | |
36 | void r100_mc_disable_clients(struct radeon_device *rdev); | |
37 | int r300_mc_wait_for_idle(struct radeon_device *rdev); | |
38 | void r420_pipes_init(struct radeon_device *rdev); | |
39 | ||
40 | /* This files gather functions specifics to : | |
41 | * rs400,rs480 | |
42 | * | |
43 | * Some of these functions might be used by newer ASICs. | |
44 | */ | |
45 | void rs400_gpu_init(struct radeon_device *rdev); | |
46 | int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev); | |
47 | ||
48 | ||
49 | /* | |
50 | * GART functions. | |
51 | */ | |
52 | void rs400_gart_adjust_size(struct radeon_device *rdev) | |
53 | { | |
54 | /* Check gart size */ | |
55 | switch (rdev->mc.gtt_size/(1024*1024)) { | |
56 | case 32: | |
57 | case 64: | |
58 | case 128: | |
59 | case 256: | |
60 | case 512: | |
61 | case 1024: | |
62 | case 2048: | |
63 | break; | |
64 | default: | |
65 | DRM_ERROR("Unable to use IGP GART size %uM\n", | |
66 | rdev->mc.gtt_size >> 20); | |
67 | DRM_ERROR("Valid GART size for IGP are 32M,64M,128M,256M,512M,1G,2G\n"); | |
68 | DRM_ERROR("Forcing to 32M GART size\n"); | |
69 | rdev->mc.gtt_size = 32 * 1024 * 1024; | |
70 | return; | |
71 | } | |
72 | if (rdev->family == CHIP_RS400 || rdev->family == CHIP_RS480) { | |
73 | /* FIXME: RS400 & RS480 seems to have issue with GART size | |
74 | * if 4G of system memory (needs more testing) */ | |
75 | rdev->mc.gtt_size = 32 * 1024 * 1024; | |
76 | DRM_ERROR("Forcing to 32M GART size (because of ASIC bug ?)\n"); | |
77 | } | |
78 | } | |
79 | ||
80 | void rs400_gart_tlb_flush(struct radeon_device *rdev) | |
81 | { | |
82 | uint32_t tmp; | |
83 | unsigned int timeout = rdev->usec_timeout; | |
84 | ||
85 | WREG32_MC(RS480_GART_CACHE_CNTRL, RS480_GART_CACHE_INVALIDATE); | |
86 | do { | |
87 | tmp = RREG32_MC(RS480_GART_CACHE_CNTRL); | |
88 | if ((tmp & RS480_GART_CACHE_INVALIDATE) == 0) | |
89 | break; | |
90 | DRM_UDELAY(1); | |
91 | timeout--; | |
92 | } while (timeout > 0); | |
93 | WREG32_MC(RS480_GART_CACHE_CNTRL, 0); | |
94 | } | |
95 | ||
96 | int rs400_gart_enable(struct radeon_device *rdev) | |
97 | { | |
98 | uint32_t size_reg; | |
99 | uint32_t tmp; | |
100 | int r; | |
101 | ||
102 | /* Initialize common gart structure */ | |
103 | r = radeon_gart_init(rdev); | |
104 | if (r) { | |
105 | return r; | |
106 | } | |
107 | if (rs400_debugfs_pcie_gart_info_init(rdev)) { | |
108 | DRM_ERROR("Failed to register debugfs file for RS400 GART !\n"); | |
109 | } | |
110 | ||
111 | tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH); | |
112 | tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS; | |
113 | WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp); | |
114 | /* Check gart size */ | |
115 | switch(rdev->mc.gtt_size / (1024 * 1024)) { | |
116 | case 32: | |
117 | size_reg = RS480_VA_SIZE_32MB; | |
118 | break; | |
119 | case 64: | |
120 | size_reg = RS480_VA_SIZE_64MB; | |
121 | break; | |
122 | case 128: | |
123 | size_reg = RS480_VA_SIZE_128MB; | |
124 | break; | |
125 | case 256: | |
126 | size_reg = RS480_VA_SIZE_256MB; | |
127 | break; | |
128 | case 512: | |
129 | size_reg = RS480_VA_SIZE_512MB; | |
130 | break; | |
131 | case 1024: | |
132 | size_reg = RS480_VA_SIZE_1GB; | |
133 | break; | |
134 | case 2048: | |
135 | size_reg = RS480_VA_SIZE_2GB; | |
136 | break; | |
137 | default: | |
138 | return -EINVAL; | |
139 | } | |
140 | if (rdev->gart.table.ram.ptr == NULL) { | |
141 | rdev->gart.table_size = rdev->gart.num_gpu_pages * 4; | |
142 | r = radeon_gart_table_ram_alloc(rdev); | |
143 | if (r) { | |
144 | return r; | |
145 | } | |
146 | } | |
147 | /* It should be fine to program it to max value */ | |
148 | if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) { | |
149 | WREG32_MC(RS690_MCCFG_AGP_BASE, 0xFFFFFFFF); | |
150 | WREG32_MC(RS690_MCCFG_AGP_BASE_2, 0); | |
151 | } else { | |
152 | WREG32(RADEON_AGP_BASE, 0xFFFFFFFF); | |
153 | WREG32(RS480_AGP_BASE_2, 0); | |
154 | } | |
155 | tmp = rdev->mc.gtt_location + rdev->mc.gtt_size - 1; | |
156 | tmp = REG_SET(RS690_MC_AGP_TOP, tmp >> 16); | |
157 | tmp |= REG_SET(RS690_MC_AGP_START, rdev->mc.gtt_location >> 16); | |
158 | if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) { | |
159 | WREG32_MC(RS690_MCCFG_AGP_LOCATION, tmp); | |
160 | tmp = RREG32(RADEON_BUS_CNTL) & ~RS600_BUS_MASTER_DIS; | |
161 | WREG32(RADEON_BUS_CNTL, tmp); | |
162 | } else { | |
163 | WREG32(RADEON_MC_AGP_LOCATION, tmp); | |
164 | tmp = RREG32(RADEON_BUS_CNTL) & ~RADEON_BUS_MASTER_DIS; | |
165 | WREG32(RADEON_BUS_CNTL, tmp); | |
166 | } | |
167 | /* Table should be in 32bits address space so ignore bits above. */ | |
ed10f95d DA |
168 | tmp = (u32)rdev->gart.table_addr & 0xfffff000; |
169 | tmp |= (upper_32_bits(rdev->gart.table_addr) & 0xff) << 4; | |
170 | ||
771fe6b9 JG |
171 | WREG32_MC(RS480_GART_BASE, tmp); |
172 | /* TODO: more tweaking here */ | |
173 | WREG32_MC(RS480_GART_FEATURE_ID, | |
174 | (RS480_TLB_ENABLE | | |
175 | RS480_GTW_LAC_EN | RS480_1LEVEL_GART)); | |
176 | /* Disable snooping */ | |
177 | WREG32_MC(RS480_AGP_MODE_CNTL, | |
178 | (1 << RS480_REQ_TYPE_SNOOP_SHIFT) | RS480_REQ_TYPE_SNOOP_DIS); | |
179 | /* Disable AGP mode */ | |
180 | /* FIXME: according to doc we should set HIDE_MMCFG_BAR=0, | |
181 | * AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */ | |
182 | if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) { | |
183 | WREG32_MC(RS480_MC_MISC_CNTL, | |
184 | (RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN)); | |
185 | } else { | |
186 | WREG32_MC(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN); | |
187 | } | |
188 | /* Enable gart */ | |
189 | WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg)); | |
190 | rs400_gart_tlb_flush(rdev); | |
191 | rdev->gart.ready = true; | |
192 | return 0; | |
193 | } | |
194 | ||
195 | void rs400_gart_disable(struct radeon_device *rdev) | |
196 | { | |
197 | uint32_t tmp; | |
198 | ||
199 | tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH); | |
200 | tmp |= RS690_DIS_OUT_OF_PCI_GART_ACCESS; | |
201 | WREG32_MC(RS690_AIC_CTRL_SCRATCH, tmp); | |
202 | WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, 0); | |
203 | } | |
204 | ||
205 | int rs400_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr) | |
206 | { | |
ed10f95d DA |
207 | uint32_t entry; |
208 | ||
771fe6b9 JG |
209 | if (i < 0 || i > rdev->gart.num_gpu_pages) { |
210 | return -EINVAL; | |
211 | } | |
ed10f95d DA |
212 | |
213 | entry = (lower_32_bits(addr) & PAGE_MASK) | | |
214 | ((upper_32_bits(addr) & 0xff) << 4) | | |
215 | 0xc; | |
216 | entry = cpu_to_le32(entry); | |
217 | rdev->gart.table.ram.ptr[i] = entry; | |
771fe6b9 JG |
218 | return 0; |
219 | } | |
220 | ||
221 | ||
222 | /* | |
223 | * MC functions. | |
224 | */ | |
225 | int rs400_mc_init(struct radeon_device *rdev) | |
226 | { | |
227 | uint32_t tmp; | |
228 | int r; | |
229 | ||
230 | if (r100_debugfs_rbbm_init(rdev)) { | |
231 | DRM_ERROR("Failed to register debugfs file for RBBM !\n"); | |
232 | } | |
233 | ||
234 | rs400_gpu_init(rdev); | |
235 | rs400_gart_disable(rdev); | |
7a50f01a | 236 | rdev->mc.gtt_location = rdev->mc.mc_vram_size; |
771fe6b9 JG |
237 | rdev->mc.gtt_location += (rdev->mc.gtt_size - 1); |
238 | rdev->mc.gtt_location &= ~(rdev->mc.gtt_size - 1); | |
771fe6b9 JG |
239 | r = radeon_mc_setup(rdev); |
240 | if (r) { | |
241 | return r; | |
242 | } | |
243 | ||
244 | r100_mc_disable_clients(rdev); | |
245 | if (r300_mc_wait_for_idle(rdev)) { | |
246 | printk(KERN_WARNING "Failed to wait MC idle while " | |
247 | "programming pipes. Bad things might happen.\n"); | |
248 | } | |
249 | ||
7a50f01a | 250 | tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1; |
771fe6b9 JG |
251 | tmp = REG_SET(RADEON_MC_FB_TOP, tmp >> 16); |
252 | tmp |= REG_SET(RADEON_MC_FB_START, rdev->mc.vram_location >> 16); | |
253 | WREG32(RADEON_MC_FB_LOCATION, tmp); | |
254 | tmp = RREG32(RADEON_HOST_PATH_CNTL) | RADEON_HP_LIN_RD_CACHE_DIS; | |
255 | WREG32(RADEON_HOST_PATH_CNTL, tmp | RADEON_HDP_SOFT_RESET | RADEON_HDP_READ_BUFFER_INVALIDATE); | |
256 | (void)RREG32(RADEON_HOST_PATH_CNTL); | |
257 | WREG32(RADEON_HOST_PATH_CNTL, tmp); | |
258 | (void)RREG32(RADEON_HOST_PATH_CNTL); | |
259 | return 0; | |
260 | } | |
261 | ||
262 | void rs400_mc_fini(struct radeon_device *rdev) | |
263 | { | |
264 | rs400_gart_disable(rdev); | |
265 | radeon_gart_table_ram_free(rdev); | |
266 | radeon_gart_fini(rdev); | |
267 | } | |
268 | ||
269 | ||
270 | /* | |
271 | * Global GPU functions | |
272 | */ | |
273 | void rs400_errata(struct radeon_device *rdev) | |
274 | { | |
275 | rdev->pll_errata = 0; | |
276 | } | |
277 | ||
278 | void rs400_gpu_init(struct radeon_device *rdev) | |
279 | { | |
280 | /* FIXME: HDP same place on rs400 ? */ | |
281 | r100_hdp_reset(rdev); | |
282 | /* FIXME: is this correct ? */ | |
283 | r420_pipes_init(rdev); | |
284 | if (r300_mc_wait_for_idle(rdev)) { | |
285 | printk(KERN_WARNING "Failed to wait MC idle while " | |
286 | "programming pipes. Bad things might happen.\n"); | |
287 | } | |
288 | } | |
289 | ||
290 | ||
291 | /* | |
292 | * VRAM info. | |
293 | */ | |
294 | void rs400_vram_info(struct radeon_device *rdev) | |
295 | { | |
771fe6b9 JG |
296 | rs400_gart_adjust_size(rdev); |
297 | /* DDR for all card after R300 & IGP */ | |
298 | rdev->mc.vram_is_ddr = true; | |
299 | rdev->mc.vram_width = 128; | |
300 | ||
2a0f8918 | 301 | r100_vram_init_sizes(rdev); |
771fe6b9 JG |
302 | } |
303 | ||
304 | ||
305 | /* | |
306 | * Indirect registers accessor | |
307 | */ | |
308 | uint32_t rs400_mc_rreg(struct radeon_device *rdev, uint32_t reg) | |
309 | { | |
310 | uint32_t r; | |
311 | ||
312 | WREG32(RS480_NB_MC_INDEX, reg & 0xff); | |
313 | r = RREG32(RS480_NB_MC_DATA); | |
314 | WREG32(RS480_NB_MC_INDEX, 0xff); | |
315 | return r; | |
316 | } | |
317 | ||
318 | void rs400_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) | |
319 | { | |
320 | WREG32(RS480_NB_MC_INDEX, ((reg) & 0xff) | RS480_NB_MC_IND_WR_EN); | |
321 | WREG32(RS480_NB_MC_DATA, (v)); | |
322 | WREG32(RS480_NB_MC_INDEX, 0xff); | |
323 | } | |
324 | ||
325 | ||
326 | /* | |
327 | * Debugfs info | |
328 | */ | |
329 | #if defined(CONFIG_DEBUG_FS) | |
330 | static int rs400_debugfs_gart_info(struct seq_file *m, void *data) | |
331 | { | |
332 | struct drm_info_node *node = (struct drm_info_node *) m->private; | |
333 | struct drm_device *dev = node->minor->dev; | |
334 | struct radeon_device *rdev = dev->dev_private; | |
335 | uint32_t tmp; | |
336 | ||
337 | tmp = RREG32(RADEON_HOST_PATH_CNTL); | |
338 | seq_printf(m, "HOST_PATH_CNTL 0x%08x\n", tmp); | |
339 | tmp = RREG32(RADEON_BUS_CNTL); | |
340 | seq_printf(m, "BUS_CNTL 0x%08x\n", tmp); | |
341 | tmp = RREG32_MC(RS690_AIC_CTRL_SCRATCH); | |
342 | seq_printf(m, "AIC_CTRL_SCRATCH 0x%08x\n", tmp); | |
343 | if (rdev->family == CHIP_RS690 || (rdev->family == CHIP_RS740)) { | |
344 | tmp = RREG32_MC(RS690_MCCFG_AGP_BASE); | |
345 | seq_printf(m, "MCCFG_AGP_BASE 0x%08x\n", tmp); | |
346 | tmp = RREG32_MC(RS690_MCCFG_AGP_BASE_2); | |
347 | seq_printf(m, "MCCFG_AGP_BASE_2 0x%08x\n", tmp); | |
348 | tmp = RREG32_MC(RS690_MCCFG_AGP_LOCATION); | |
349 | seq_printf(m, "MCCFG_AGP_LOCATION 0x%08x\n", tmp); | |
350 | tmp = RREG32_MC(0x100); | |
351 | seq_printf(m, "MCCFG_FB_LOCATION 0x%08x\n", tmp); | |
352 | tmp = RREG32(0x134); | |
353 | seq_printf(m, "HDP_FB_LOCATION 0x%08x\n", tmp); | |
354 | } else { | |
355 | tmp = RREG32(RADEON_AGP_BASE); | |
356 | seq_printf(m, "AGP_BASE 0x%08x\n", tmp); | |
357 | tmp = RREG32(RS480_AGP_BASE_2); | |
358 | seq_printf(m, "AGP_BASE_2 0x%08x\n", tmp); | |
359 | tmp = RREG32(RADEON_MC_AGP_LOCATION); | |
360 | seq_printf(m, "MC_AGP_LOCATION 0x%08x\n", tmp); | |
361 | } | |
362 | tmp = RREG32_MC(RS480_GART_BASE); | |
363 | seq_printf(m, "GART_BASE 0x%08x\n", tmp); | |
364 | tmp = RREG32_MC(RS480_GART_FEATURE_ID); | |
365 | seq_printf(m, "GART_FEATURE_ID 0x%08x\n", tmp); | |
366 | tmp = RREG32_MC(RS480_AGP_MODE_CNTL); | |
367 | seq_printf(m, "AGP_MODE_CONTROL 0x%08x\n", tmp); | |
368 | tmp = RREG32_MC(RS480_MC_MISC_CNTL); | |
369 | seq_printf(m, "MC_MISC_CNTL 0x%08x\n", tmp); | |
370 | tmp = RREG32_MC(0x5F); | |
371 | seq_printf(m, "MC_MISC_UMA_CNTL 0x%08x\n", tmp); | |
372 | tmp = RREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE); | |
373 | seq_printf(m, "AGP_ADDRESS_SPACE_SIZE 0x%08x\n", tmp); | |
374 | tmp = RREG32_MC(RS480_GART_CACHE_CNTRL); | |
375 | seq_printf(m, "GART_CACHE_CNTRL 0x%08x\n", tmp); | |
376 | tmp = RREG32_MC(0x3B); | |
377 | seq_printf(m, "MC_GART_ERROR_ADDRESS 0x%08x\n", tmp); | |
378 | tmp = RREG32_MC(0x3C); | |
379 | seq_printf(m, "MC_GART_ERROR_ADDRESS_HI 0x%08x\n", tmp); | |
380 | tmp = RREG32_MC(0x30); | |
381 | seq_printf(m, "GART_ERROR_0 0x%08x\n", tmp); | |
382 | tmp = RREG32_MC(0x31); | |
383 | seq_printf(m, "GART_ERROR_1 0x%08x\n", tmp); | |
384 | tmp = RREG32_MC(0x32); | |
385 | seq_printf(m, "GART_ERROR_2 0x%08x\n", tmp); | |
386 | tmp = RREG32_MC(0x33); | |
387 | seq_printf(m, "GART_ERROR_3 0x%08x\n", tmp); | |
388 | tmp = RREG32_MC(0x34); | |
389 | seq_printf(m, "GART_ERROR_4 0x%08x\n", tmp); | |
390 | tmp = RREG32_MC(0x35); | |
391 | seq_printf(m, "GART_ERROR_5 0x%08x\n", tmp); | |
392 | tmp = RREG32_MC(0x36); | |
393 | seq_printf(m, "GART_ERROR_6 0x%08x\n", tmp); | |
394 | tmp = RREG32_MC(0x37); | |
395 | seq_printf(m, "GART_ERROR_7 0x%08x\n", tmp); | |
396 | return 0; | |
397 | } | |
398 | ||
399 | static struct drm_info_list rs400_gart_info_list[] = { | |
400 | {"rs400_gart_info", rs400_debugfs_gart_info, 0, NULL}, | |
401 | }; | |
402 | #endif | |
403 | ||
404 | int rs400_debugfs_pcie_gart_info_init(struct radeon_device *rdev) | |
405 | { | |
406 | #if defined(CONFIG_DEBUG_FS) | |
407 | return radeon_debugfs_add_files(rdev, rs400_gart_info_list, 1); | |
408 | #else | |
409 | return 0; | |
410 | #endif | |
411 | } |