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PM / sleep: Asynchronous threads for suspend_noirq
[linux/fpc-iii.git] / drivers / gpu / drm / radeon / rs690.c
blob35950738bd5e449465e0e5062d096e3e8ae9ff0e
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 <drm/drmP.h>
29 #include "radeon.h"
30 #include "radeon_asic.h"
31 #include "atom.h"
32 #include "rs690d.h"
33
34 int rs690_mc_wait_for_idle(struct radeon_device *rdev)
35 {
36 unsigned i;
37 uint32_t tmp;
38
39 for (i = 0; i < rdev->usec_timeout; i++) {
40 /* read MC_STATUS */
41 tmp = RREG32_MC(R_000090_MC_SYSTEM_STATUS);
42 if (G_000090_MC_SYSTEM_IDLE(tmp))
43 return 0;
44 udelay(1);
45 }
46 return -1;
47 }
48
49 static void rs690_gpu_init(struct radeon_device *rdev)
50 {
51 /* FIXME: is this correct ? */
52 r420_pipes_init(rdev);
53 if (rs690_mc_wait_for_idle(rdev)) {
54 printk(KERN_WARNING "Failed to wait MC idle while "
55 "programming pipes. Bad things might happen.\n");
56 }
57 }
58
59 union igp_info {
60 struct _ATOM_INTEGRATED_SYSTEM_INFO info;
61 struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_v2;
62 };
63
64 void rs690_pm_info(struct radeon_device *rdev)
65 {
66 int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
67 union igp_info *info;
68 uint16_t data_offset;
69 uint8_t frev, crev;
70 fixed20_12 tmp;
71
72 if (atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
73 &frev, &crev, &data_offset)) {
74 info = (union igp_info *)(rdev->mode_info.atom_context->bios + data_offset);
75
76 /* Get various system informations from bios */
77 switch (crev) {
78 case 1:
79 tmp.full = dfixed_const(100);
80 rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info.ulBootUpMemoryClock));
81 rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp);
82 if (le16_to_cpu(info->info.usK8MemoryClock))
83 rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock));
84 else if (rdev->clock.default_mclk) {
85 rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk);
86 rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
87 } else
88 rdev->pm.igp_system_mclk.full = dfixed_const(400);
89 rdev->pm.igp_ht_link_clk.full = dfixed_const(le16_to_cpu(info->info.usFSBClock));
90 rdev->pm.igp_ht_link_width.full = dfixed_const(info->info.ucHTLinkWidth);
91 break;
92 case 2:
93 tmp.full = dfixed_const(100);
94 rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpSidePortClock));
95 rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp);
96 if (le32_to_cpu(info->info_v2.ulBootUpUMAClock))
97 rdev->pm.igp_system_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpUMAClock));
98 else if (rdev->clock.default_mclk)
99 rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk);
100 else
101 rdev->pm.igp_system_mclk.full = dfixed_const(66700);
102 rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
103 rdev->pm.igp_ht_link_clk.full = dfixed_const(le32_to_cpu(info->info_v2.ulHTLinkFreq));
104 rdev->pm.igp_ht_link_clk.full = dfixed_div(rdev->pm.igp_ht_link_clk, tmp);
105 rdev->pm.igp_ht_link_width.full = dfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth));
106 break;
107 default:
108 /* We assume the slower possible clock ie worst case */
109 rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
110 rdev->pm.igp_system_mclk.full = dfixed_const(200);
111 rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
112 rdev->pm.igp_ht_link_width.full = dfixed_const(8);
113 DRM_ERROR("No integrated system info for your GPU, using safe default\n");
114 break;
115 }
116 } else {
117 /* We assume the slower possible clock ie worst case */
118 rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
119 rdev->pm.igp_system_mclk.full = dfixed_const(200);
120 rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
121 rdev->pm.igp_ht_link_width.full = dfixed_const(8);
122 DRM_ERROR("No integrated system info for your GPU, using safe default\n");
123 }
124 /* Compute various bandwidth */
125 /* k8_bandwidth = (memory_clk / 2) * 2 * 8 * 0.5 = memory_clk * 4 */
126 tmp.full = dfixed_const(4);
127 rdev->pm.k8_bandwidth.full = dfixed_mul(rdev->pm.igp_system_mclk, tmp);
128 /* ht_bandwidth = ht_clk * 2 * ht_width / 8 * 0.8
129 * = ht_clk * ht_width / 5
130 */
131 tmp.full = dfixed_const(5);
132 rdev->pm.ht_bandwidth.full = dfixed_mul(rdev->pm.igp_ht_link_clk,
133 rdev->pm.igp_ht_link_width);
134 rdev->pm.ht_bandwidth.full = dfixed_div(rdev->pm.ht_bandwidth, tmp);
135 if (tmp.full < rdev->pm.max_bandwidth.full) {
136 /* HT link is a limiting factor */
137 rdev->pm.max_bandwidth.full = tmp.full;
138 }
139 /* sideport_bandwidth = (sideport_clk / 2) * 2 * 2 * 0.7
140 * = (sideport_clk * 14) / 10
141 */
142 tmp.full = dfixed_const(14);
143 rdev->pm.sideport_bandwidth.full = dfixed_mul(rdev->pm.igp_sideport_mclk, tmp);
144 tmp.full = dfixed_const(10);
145 rdev->pm.sideport_bandwidth.full = dfixed_div(rdev->pm.sideport_bandwidth, tmp);
146 }
147
148 static void rs690_mc_init(struct radeon_device *rdev)
149 {
150 u64 base;
151 uint32_t h_addr, l_addr;
152 unsigned long long k8_addr;
153
154 rs400_gart_adjust_size(rdev);
155 rdev->mc.vram_is_ddr = true;
156 rdev->mc.vram_width = 128;
157 rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
158 rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
159 rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
160 rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
161 rdev->mc.visible_vram_size = rdev->mc.aper_size;
162 base = RREG32_MC(R_000100_MCCFG_FB_LOCATION);
163 base = G_000100_MC_FB_START(base) << 16;
164 rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
165 /* Some boards seem to be configured for 128MB of sideport memory,
166 * but really only have 64MB. Just skip the sideport and use
167 * UMA memory.
168 */
169 if (rdev->mc.igp_sideport_enabled &&
170 (rdev->mc.real_vram_size == (384 * 1024 * 1024))) {
171 base += 128 * 1024 * 1024;
172 rdev->mc.real_vram_size -= 128 * 1024 * 1024;
173 rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
174 }
175
176 /* Use K8 direct mapping for fast fb access. */
177 rdev->fastfb_working = false;
178 h_addr = G_00005F_K8_ADDR_EXT(RREG32_MC(R_00005F_MC_MISC_UMA_CNTL));
179 l_addr = RREG32_MC(R_00001E_K8_FB_LOCATION);
180 k8_addr = ((unsigned long long)h_addr) << 32 | l_addr;
181 #if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
182 if (k8_addr + rdev->mc.visible_vram_size < 0x100000000ULL)
183 #endif
184 {
185 /* FastFB shall be used with UMA memory. Here it is simply disabled when sideport
186 * memory is present.
187 */
188 if (rdev->mc.igp_sideport_enabled == false && radeon_fastfb == 1) {
189 DRM_INFO("Direct mapping: aper base at 0x%llx, replaced by direct mapping base 0x%llx.\n",
190 (unsigned long long)rdev->mc.aper_base, k8_addr);
191 rdev->mc.aper_base = (resource_size_t)k8_addr;
192 rdev->fastfb_working = true;
193 }
194 }
195
196 rs690_pm_info(rdev);
197 radeon_vram_location(rdev, &rdev->mc, base);
198 rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1;
199 radeon_gtt_location(rdev, &rdev->mc);
200 radeon_update_bandwidth_info(rdev);
201 }
202
203 void rs690_line_buffer_adjust(struct radeon_device *rdev,
204 struct drm_display_mode *mode1,
205 struct drm_display_mode *mode2)
206 {
207 u32 tmp;
208
209 /*
210 * Line Buffer Setup
211 * There is a single line buffer shared by both display controllers.
212 * R_006520_DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
213 * the display controllers. The paritioning can either be done
214 * manually or via one of four preset allocations specified in bits 1:0:
215 * 0 - line buffer is divided in half and shared between crtc
216 * 1 - D1 gets 3/4 of the line buffer, D2 gets 1/4
217 * 2 - D1 gets the whole buffer
218 * 3 - D1 gets 1/4 of the line buffer, D2 gets 3/4
219 * Setting bit 2 of R_006520_DC_LB_MEMORY_SPLIT controls switches to manual
220 * allocation mode. In manual allocation mode, D1 always starts at 0,
221 * D1 end/2 is specified in bits 14:4; D2 allocation follows D1.
222 */
223 tmp = RREG32(R_006520_DC_LB_MEMORY_SPLIT) & C_006520_DC_LB_MEMORY_SPLIT;
224 tmp &= ~C_006520_DC_LB_MEMORY_SPLIT_MODE;
225 /* auto */
226 if (mode1 && mode2) {
227 if (mode1->hdisplay > mode2->hdisplay) {
228 if (mode1->hdisplay > 2560)
229 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q;
230 else
231 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
232 } else if (mode2->hdisplay > mode1->hdisplay) {
233 if (mode2->hdisplay > 2560)
234 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
235 else
236 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
237 } else
238 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
239 } else if (mode1) {
240 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_ONLY;
241 } else if (mode2) {
242 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
243 }
244 WREG32(R_006520_DC_LB_MEMORY_SPLIT, tmp);
245 }
246
247 struct rs690_watermark {
248 u32 lb_request_fifo_depth;
249 fixed20_12 num_line_pair;
250 fixed20_12 estimated_width;
251 fixed20_12 worst_case_latency;
252 fixed20_12 consumption_rate;
253 fixed20_12 active_time;
254 fixed20_12 dbpp;
255 fixed20_12 priority_mark_max;
256 fixed20_12 priority_mark;
257 fixed20_12 sclk;
258 };
259
260 static void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
261 struct radeon_crtc *crtc,
262 struct rs690_watermark *wm,
263 bool low)
264 {
265 struct drm_display_mode *mode = &crtc->base.mode;
266 fixed20_12 a, b, c;
267 fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
268 fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
269 fixed20_12 sclk, core_bandwidth, max_bandwidth;
270 u32 selected_sclk;
271
272 if (!crtc->base.enabled) {
273 /* FIXME: wouldn't it better to set priority mark to maximum */
274 wm->lb_request_fifo_depth = 4;
275 return;
276 }
277
278 if (((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880)) &&
279 (rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
280 selected_sclk = radeon_dpm_get_sclk(rdev, low);
281 else
282 selected_sclk = rdev->pm.current_sclk;
283
284 /* sclk in Mhz */
285 a.full = dfixed_const(100);
286 sclk.full = dfixed_const(selected_sclk);
287 sclk.full = dfixed_div(sclk, a);
288
289 /* core_bandwidth = sclk(Mhz) * 16 */
290 a.full = dfixed_const(16);
291 core_bandwidth.full = dfixed_div(rdev->pm.sclk, a);
292
293 if (crtc->vsc.full > dfixed_const(2))
294 wm->num_line_pair.full = dfixed_const(2);
295 else
296 wm->num_line_pair.full = dfixed_const(1);
297
298 b.full = dfixed_const(mode->crtc_hdisplay);
299 c.full = dfixed_const(256);
300 a.full = dfixed_div(b, c);
301 request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair);
302 request_fifo_depth.full = dfixed_ceil(request_fifo_depth);
303 if (a.full < dfixed_const(4)) {
304 wm->lb_request_fifo_depth = 4;
305 } else {
306 wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth);
307 }
308
309 /* Determine consumption rate
310 * pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
311 * vtaps = number of vertical taps,
312 * vsc = vertical scaling ratio, defined as source/destination
313 * hsc = horizontal scaling ration, defined as source/destination
314 */
315 a.full = dfixed_const(mode->clock);
316 b.full = dfixed_const(1000);
317 a.full = dfixed_div(a, b);
318 pclk.full = dfixed_div(b, a);
319 if (crtc->rmx_type != RMX_OFF) {
320 b.full = dfixed_const(2);
321 if (crtc->vsc.full > b.full)
322 b.full = crtc->vsc.full;
323 b.full = dfixed_mul(b, crtc->hsc);
324 c.full = dfixed_const(2);
325 b.full = dfixed_div(b, c);
326 consumption_time.full = dfixed_div(pclk, b);
327 } else {
328 consumption_time.full = pclk.full;
329 }
330 a.full = dfixed_const(1);
331 wm->consumption_rate.full = dfixed_div(a, consumption_time);
332
333
334 /* Determine line time
335 * LineTime = total time for one line of displayhtotal
336 * LineTime = total number of horizontal pixels
337 * pclk = pixel clock period(ns)
338 */
339 a.full = dfixed_const(crtc->base.mode.crtc_htotal);
340 line_time.full = dfixed_mul(a, pclk);
341
342 /* Determine active time
343 * ActiveTime = time of active region of display within one line,
344 * hactive = total number of horizontal active pixels
345 * htotal = total number of horizontal pixels
346 */
347 a.full = dfixed_const(crtc->base.mode.crtc_htotal);
348 b.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
349 wm->active_time.full = dfixed_mul(line_time, b);
350 wm->active_time.full = dfixed_div(wm->active_time, a);
351
352 /* Maximun bandwidth is the minimun bandwidth of all component */
353 max_bandwidth = core_bandwidth;
354 if (rdev->mc.igp_sideport_enabled) {
355 if (max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
356 rdev->pm.sideport_bandwidth.full)
357 max_bandwidth = rdev->pm.sideport_bandwidth;
358 read_delay_latency.full = dfixed_const(370 * 800);
359 a.full = dfixed_const(1000);
360 b.full = dfixed_div(rdev->pm.igp_sideport_mclk, a);
361 read_delay_latency.full = dfixed_div(read_delay_latency, b);
362 read_delay_latency.full = dfixed_mul(read_delay_latency, a);
363 } else {
364 if (max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
365 rdev->pm.k8_bandwidth.full)
366 max_bandwidth = rdev->pm.k8_bandwidth;
367 if (max_bandwidth.full > rdev->pm.ht_bandwidth.full &&
368 rdev->pm.ht_bandwidth.full)
369 max_bandwidth = rdev->pm.ht_bandwidth;
370 read_delay_latency.full = dfixed_const(5000);
371 }
372
373 /* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */
374 a.full = dfixed_const(16);
375 sclk.full = dfixed_mul(max_bandwidth, a);
376 a.full = dfixed_const(1000);
377 sclk.full = dfixed_div(a, sclk);
378 /* Determine chunk time
379 * ChunkTime = the time it takes the DCP to send one chunk of data
380 * to the LB which consists of pipeline delay and inter chunk gap
381 * sclk = system clock(ns)
382 */
383 a.full = dfixed_const(256 * 13);
384 chunk_time.full = dfixed_mul(sclk, a);
385 a.full = dfixed_const(10);
386 chunk_time.full = dfixed_div(chunk_time, a);
387
388 /* Determine the worst case latency
389 * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
390 * WorstCaseLatency = worst case time from urgent to when the MC starts
391 * to return data
392 * READ_DELAY_IDLE_MAX = constant of 1us
393 * ChunkTime = time it takes the DCP to send one chunk of data to the LB
394 * which consists of pipeline delay and inter chunk gap
395 */
396 if (dfixed_trunc(wm->num_line_pair) > 1) {
397 a.full = dfixed_const(3);
398 wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
399 wm->worst_case_latency.full += read_delay_latency.full;
400 } else {
401 a.full = dfixed_const(2);
402 wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
403 wm->worst_case_latency.full += read_delay_latency.full;
404 }
405
406 /* Determine the tolerable latency
407 * TolerableLatency = Any given request has only 1 line time
408 * for the data to be returned
409 * LBRequestFifoDepth = Number of chunk requests the LB can
410 * put into the request FIFO for a display
411 * LineTime = total time for one line of display
412 * ChunkTime = the time it takes the DCP to send one chunk
413 * of data to the LB which consists of
414 * pipeline delay and inter chunk gap
415 */
416 if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) {
417 tolerable_latency.full = line_time.full;
418 } else {
419 tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2);
420 tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
421 tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time);
422 tolerable_latency.full = line_time.full - tolerable_latency.full;
423 }
424 /* We assume worst case 32bits (4 bytes) */
425 wm->dbpp.full = dfixed_const(4 * 8);
426
427 /* Determine the maximum priority mark
428 * width = viewport width in pixels
429 */
430 a.full = dfixed_const(16);
431 wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
432 wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a);
433 wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max);
434
435 /* Determine estimated width */
436 estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
437 estimated_width.full = dfixed_div(estimated_width, consumption_time);
438 if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
439 wm->priority_mark.full = dfixed_const(10);
440 } else {
441 a.full = dfixed_const(16);
442 wm->priority_mark.full = dfixed_div(estimated_width, a);
443 wm->priority_mark.full = dfixed_ceil(wm->priority_mark);
444 wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
445 }
446 }
447
448 static void rs690_compute_mode_priority(struct radeon_device *rdev,
449 struct rs690_watermark *wm0,
450 struct rs690_watermark *wm1,
451 struct drm_display_mode *mode0,
452 struct drm_display_mode *mode1,
453 u32 *d1mode_priority_a_cnt,
454 u32 *d2mode_priority_a_cnt)
455 {
456 fixed20_12 priority_mark02, priority_mark12, fill_rate;
457 fixed20_12 a, b;
458
459 *d1mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1);
460 *d2mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1);
461
462 if (mode0 && mode1) {
463 if (dfixed_trunc(wm0->dbpp) > 64)
464 a.full = dfixed_mul(wm0->dbpp, wm0->num_line_pair);
465 else
466 a.full = wm0->num_line_pair.full;
467 if (dfixed_trunc(wm1->dbpp) > 64)
468 b.full = dfixed_mul(wm1->dbpp, wm1->num_line_pair);
469 else
470 b.full = wm1->num_line_pair.full;
471 a.full += b.full;
472 fill_rate.full = dfixed_div(wm0->sclk, a);
473 if (wm0->consumption_rate.full > fill_rate.full) {
474 b.full = wm0->consumption_rate.full - fill_rate.full;
475 b.full = dfixed_mul(b, wm0->active_time);
476 a.full = dfixed_mul(wm0->worst_case_latency,
477 wm0->consumption_rate);
478 a.full = a.full + b.full;
479 b.full = dfixed_const(16 * 1000);
480 priority_mark02.full = dfixed_div(a, b);
481 } else {
482 a.full = dfixed_mul(wm0->worst_case_latency,
483 wm0->consumption_rate);
484 b.full = dfixed_const(16 * 1000);
485 priority_mark02.full = dfixed_div(a, b);
486 }
487 if (wm1->consumption_rate.full > fill_rate.full) {
488 b.full = wm1->consumption_rate.full - fill_rate.full;
489 b.full = dfixed_mul(b, wm1->active_time);
490 a.full = dfixed_mul(wm1->worst_case_latency,
491 wm1->consumption_rate);
492 a.full = a.full + b.full;
493 b.full = dfixed_const(16 * 1000);
494 priority_mark12.full = dfixed_div(a, b);
495 } else {
496 a.full = dfixed_mul(wm1->worst_case_latency,
497 wm1->consumption_rate);
498 b.full = dfixed_const(16 * 1000);
499 priority_mark12.full = dfixed_div(a, b);
500 }
501 if (wm0->priority_mark.full > priority_mark02.full)
502 priority_mark02.full = wm0->priority_mark.full;
503 if (wm0->priority_mark_max.full > priority_mark02.full)
504 priority_mark02.full = wm0->priority_mark_max.full;
505 if (wm1->priority_mark.full > priority_mark12.full)
506 priority_mark12.full = wm1->priority_mark.full;
507 if (wm1->priority_mark_max.full > priority_mark12.full)
508 priority_mark12.full = wm1->priority_mark_max.full;
509 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
510 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
511 if (rdev->disp_priority == 2) {
512 *d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
513 *d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
514 }
515 } else if (mode0) {
516 if (dfixed_trunc(wm0->dbpp) > 64)
517 a.full = dfixed_mul(wm0->dbpp, wm0->num_line_pair);
518 else
519 a.full = wm0->num_line_pair.full;
520 fill_rate.full = dfixed_div(wm0->sclk, a);
521 if (wm0->consumption_rate.full > fill_rate.full) {
522 b.full = wm0->consumption_rate.full - fill_rate.full;
523 b.full = dfixed_mul(b, wm0->active_time);
524 a.full = dfixed_mul(wm0->worst_case_latency,
525 wm0->consumption_rate);
526 a.full = a.full + b.full;
527 b.full = dfixed_const(16 * 1000);
528 priority_mark02.full = dfixed_div(a, b);
529 } else {
530 a.full = dfixed_mul(wm0->worst_case_latency,
531 wm0->consumption_rate);
532 b.full = dfixed_const(16 * 1000);
533 priority_mark02.full = dfixed_div(a, b);
534 }
535 if (wm0->priority_mark.full > priority_mark02.full)
536 priority_mark02.full = wm0->priority_mark.full;
537 if (wm0->priority_mark_max.full > priority_mark02.full)
538 priority_mark02.full = wm0->priority_mark_max.full;
539 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
540 if (rdev->disp_priority == 2)
541 *d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
542 } else if (mode1) {
543 if (dfixed_trunc(wm1->dbpp) > 64)
544 a.full = dfixed_mul(wm1->dbpp, wm1->num_line_pair);
545 else
546 a.full = wm1->num_line_pair.full;
547 fill_rate.full = dfixed_div(wm1->sclk, a);
548 if (wm1->consumption_rate.full > fill_rate.full) {
549 b.full = wm1->consumption_rate.full - fill_rate.full;
550 b.full = dfixed_mul(b, wm1->active_time);
551 a.full = dfixed_mul(wm1->worst_case_latency,
552 wm1->consumption_rate);
553 a.full = a.full + b.full;
554 b.full = dfixed_const(16 * 1000);
555 priority_mark12.full = dfixed_div(a, b);
556 } else {
557 a.full = dfixed_mul(wm1->worst_case_latency,
558 wm1->consumption_rate);
559 b.full = dfixed_const(16 * 1000);
560 priority_mark12.full = dfixed_div(a, b);
561 }
562 if (wm1->priority_mark.full > priority_mark12.full)
563 priority_mark12.full = wm1->priority_mark.full;
564 if (wm1->priority_mark_max.full > priority_mark12.full)
565 priority_mark12.full = wm1->priority_mark_max.full;
566 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
567 if (rdev->disp_priority == 2)
568 *d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
569 }
570 }
571
572 void rs690_bandwidth_update(struct radeon_device *rdev)
573 {
574 struct drm_display_mode *mode0 = NULL;
575 struct drm_display_mode *mode1 = NULL;
576 struct rs690_watermark wm0_high, wm0_low;
577 struct rs690_watermark wm1_high, wm1_low;
578 u32 tmp;
579 u32 d1mode_priority_a_cnt, d1mode_priority_b_cnt;
580 u32 d2mode_priority_a_cnt, d2mode_priority_b_cnt;
581
582 radeon_update_display_priority(rdev);
583
584 if (rdev->mode_info.crtcs[0]->base.enabled)
585 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
586 if (rdev->mode_info.crtcs[1]->base.enabled)
587 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
588 /*
589 * Set display0/1 priority up in the memory controller for
590 * modes if the user specifies HIGH for displaypriority
591 * option.
592 */
593 if ((rdev->disp_priority == 2) &&
594 ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))) {
595 tmp = RREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER);
596 tmp &= C_000104_MC_DISP0R_INIT_LAT;
597 tmp &= C_000104_MC_DISP1R_INIT_LAT;
598 if (mode0)
599 tmp |= S_000104_MC_DISP0R_INIT_LAT(1);
600 if (mode1)
601 tmp |= S_000104_MC_DISP1R_INIT_LAT(1);
602 WREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER, tmp);
603 }
604 rs690_line_buffer_adjust(rdev, mode0, mode1);
605
606 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))
607 WREG32(R_006C9C_DCP_CONTROL, 0);
608 if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
609 WREG32(R_006C9C_DCP_CONTROL, 2);
610
611 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_high, false);
612 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_high, false);
613
614 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_low, true);
615 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_low, true);
616
617 tmp = (wm0_high.lb_request_fifo_depth - 1);
618 tmp |= (wm1_high.lb_request_fifo_depth - 1) << 16;
619 WREG32(R_006D58_LB_MAX_REQ_OUTSTANDING, tmp);
620
621 rs690_compute_mode_priority(rdev,
622 &wm0_high, &wm1_high,
623 mode0, mode1,
624 &d1mode_priority_a_cnt, &d2mode_priority_a_cnt);
625 rs690_compute_mode_priority(rdev,
626 &wm0_low, &wm1_low,
627 mode0, mode1,
628 &d1mode_priority_b_cnt, &d2mode_priority_b_cnt);
629
630 WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
631 WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_b_cnt);
632 WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
633 WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_b_cnt);
634 }
635
636 uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg)
637 {
638 unsigned long flags;
639 uint32_t r;
640
641 spin_lock_irqsave(&rdev->mc_idx_lock, flags);
642 WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg));
643 r = RREG32(R_00007C_MC_DATA);
644 WREG32(R_000078_MC_INDEX, ~C_000078_MC_IND_ADDR);
645 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
646 return r;
647 }
648
649 void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
650 {
651 unsigned long flags;
652
653 spin_lock_irqsave(&rdev->mc_idx_lock, flags);
654 WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg) |
655 S_000078_MC_IND_WR_EN(1));
656 WREG32(R_00007C_MC_DATA, v);
657 WREG32(R_000078_MC_INDEX, 0x7F);
658 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
659 }
660
661 static void rs690_mc_program(struct radeon_device *rdev)
662 {
663 struct rv515_mc_save save;
664
665 /* Stops all mc clients */
666 rv515_mc_stop(rdev, &save);
667
668 /* Wait for mc idle */
669 if (rs690_mc_wait_for_idle(rdev))
670 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
671 /* Program MC, should be a 32bits limited address space */
672 WREG32_MC(R_000100_MCCFG_FB_LOCATION,
673 S_000100_MC_FB_START(rdev->mc.vram_start >> 16) |
674 S_000100_MC_FB_TOP(rdev->mc.vram_end >> 16));
675 WREG32(R_000134_HDP_FB_LOCATION,
676 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
677
678 rv515_mc_resume(rdev, &save);
679 }
680
681 static int rs690_startup(struct radeon_device *rdev)
682 {
683 int r;
684
685 rs690_mc_program(rdev);
686 /* Resume clock */
687 rv515_clock_startup(rdev);
688 /* Initialize GPU configuration (# pipes, ...) */
689 rs690_gpu_init(rdev);
690 /* Initialize GART (initialize after TTM so we can allocate
691 * memory through TTM but finalize after TTM) */
692 r = rs400_gart_enable(rdev);
693 if (r)
694 return r;
695
696 /* allocate wb buffer */
697 r = radeon_wb_init(rdev);
698 if (r)
699 return r;
700
701 r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
702 if (r) {
703 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
704 return r;
705 }
706
707 /* Enable IRQ */
708 if (!rdev->irq.installed) {
709 r = radeon_irq_kms_init(rdev);
710 if (r)
711 return r;
712 }
713
714 rs600_irq_set(rdev);
715 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
716 /* 1M ring buffer */
717 r = r100_cp_init(rdev, 1024 * 1024);
718 if (r) {
719 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
720 return r;
721 }
722
723 r = radeon_ib_pool_init(rdev);
724 if (r) {
725 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
726 return r;
727 }
728
729 r = r600_audio_init(rdev);
730 if (r) {
731 dev_err(rdev->dev, "failed initializing audio\n");
732 return r;
733 }
734
735 return 0;
736 }
737
738 int rs690_resume(struct radeon_device *rdev)
739 {
740 int r;
741
742 /* Make sur GART are not working */
743 rs400_gart_disable(rdev);
744 /* Resume clock before doing reset */
745 rv515_clock_startup(rdev);
746 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
747 if (radeon_asic_reset(rdev)) {
748 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
749 RREG32(R_000E40_RBBM_STATUS),
750 RREG32(R_0007C0_CP_STAT));
751 }
752 /* post */
753 atom_asic_init(rdev->mode_info.atom_context);
754 /* Resume clock after posting */
755 rv515_clock_startup(rdev);
756 /* Initialize surface registers */
757 radeon_surface_init(rdev);
758
759 radeon_pm_resume(rdev);
760
761 rdev->accel_working = true;
762 r = rs690_startup(rdev);
763 if (r) {
764 rdev->accel_working = false;
765 }
766 return r;
767 }
768
769 int rs690_suspend(struct radeon_device *rdev)
770 {
771 radeon_pm_suspend(rdev);
772 r600_audio_fini(rdev);
773 r100_cp_disable(rdev);
774 radeon_wb_disable(rdev);
775 rs600_irq_disable(rdev);
776 rs400_gart_disable(rdev);
777 return 0;
778 }
779
780 void rs690_fini(struct radeon_device *rdev)
781 {
782 radeon_pm_fini(rdev);
783 r600_audio_fini(rdev);
784 r100_cp_fini(rdev);
785 radeon_wb_fini(rdev);
786 radeon_ib_pool_fini(rdev);
787 radeon_gem_fini(rdev);
788 rs400_gart_fini(rdev);
789 radeon_irq_kms_fini(rdev);
790 radeon_fence_driver_fini(rdev);
791 radeon_bo_fini(rdev);
792 radeon_atombios_fini(rdev);
793 kfree(rdev->bios);
794 rdev->bios = NULL;
795 }
796
797 int rs690_init(struct radeon_device *rdev)
798 {
799 int r;
800
801 /* Disable VGA */
802 rv515_vga_render_disable(rdev);
803 /* Initialize scratch registers */
804 radeon_scratch_init(rdev);
805 /* Initialize surface registers */
806 radeon_surface_init(rdev);
807 /* restore some register to sane defaults */
808 r100_restore_sanity(rdev);
809 /* TODO: disable VGA need to use VGA request */
810 /* BIOS*/
811 if (!radeon_get_bios(rdev)) {
812 if (ASIC_IS_AVIVO(rdev))
813 return -EINVAL;
814 }
815 if (rdev->is_atom_bios) {
816 r = radeon_atombios_init(rdev);
817 if (r)
818 return r;
819 } else {
820 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
821 return -EINVAL;
822 }
823 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
824 if (radeon_asic_reset(rdev)) {
825 dev_warn(rdev->dev,
826 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
827 RREG32(R_000E40_RBBM_STATUS),
828 RREG32(R_0007C0_CP_STAT));
829 }
830 /* check if cards are posted or not */
831 if (radeon_boot_test_post_card(rdev) == false)
832 return -EINVAL;
833
834 /* Initialize clocks */
835 radeon_get_clock_info(rdev->ddev);
836 /* initialize memory controller */
837 rs690_mc_init(rdev);
838 rv515_debugfs(rdev);
839 /* Fence driver */
840 r = radeon_fence_driver_init(rdev);
841 if (r)
842 return r;
843 /* Memory manager */
844 r = radeon_bo_init(rdev);
845 if (r)
846 return r;
847 r = rs400_gart_init(rdev);
848 if (r)
849 return r;
850 rs600_set_safe_registers(rdev);
851
852 /* Initialize power management */
853 radeon_pm_init(rdev);
854
855 rdev->accel_working = true;
856 r = rs690_startup(rdev);
857 if (r) {
858 /* Somethings want wront with the accel init stop accel */
859 dev_err(rdev->dev, "Disabling GPU acceleration\n");
860 r100_cp_fini(rdev);
861 radeon_wb_fini(rdev);
862 radeon_ib_pool_fini(rdev);
863 rs400_gart_fini(rdev);
864 radeon_irq_kms_fini(rdev);
865 rdev->accel_working = false;
866 }
867 return 0;
868 }
Linux with added FPC-III support