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drm/radeon/kms: add LTE/GTE discard + rv515 two sided stencil register.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / gpu / drm / radeon / rs690.c
blob879882533e45a121e47d7eb8340a76b508d5330a
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 "drmP.h"
29 #include "radeon_reg.h"
30 #include "radeon.h"
31 #include "rs690r.h"
32 #include "atom.h"
33 #include "atom-bits.h"
34
35 /* rs690,rs740 depends on : */
36 void r100_hdp_reset(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 void rs400_gart_disable(struct radeon_device *rdev);
40 int rs400_gart_enable(struct radeon_device *rdev);
41 void rs400_gart_adjust_size(struct radeon_device *rdev);
42 void rs600_mc_disable_clients(struct radeon_device *rdev);
43 void rs600_disable_vga(struct radeon_device *rdev);
44
45 /* This files gather functions specifics to :
46 * rs690,rs740
47 *
48 * Some of these functions might be used by newer ASICs.
49 */
50 void rs690_gpu_init(struct radeon_device *rdev);
51 int rs690_mc_wait_for_idle(struct radeon_device *rdev);
52
53
54 /*
55 * MC functions.
56 */
57 int rs690_mc_init(struct radeon_device *rdev)
58 {
59 uint32_t tmp;
60 int r;
61
62 if (r100_debugfs_rbbm_init(rdev)) {
63 DRM_ERROR("Failed to register debugfs file for RBBM !\n");
64 }
65
66 rs690_gpu_init(rdev);
67 rs400_gart_disable(rdev);
68
69 /* Setup GPU memory space */
70 rdev->mc.gtt_location = rdev->mc.mc_vram_size;
71 rdev->mc.gtt_location += (rdev->mc.gtt_size - 1);
72 rdev->mc.gtt_location &= ~(rdev->mc.gtt_size - 1);
73 rdev->mc.vram_location = 0xFFFFFFFFUL;
74 r = radeon_mc_setup(rdev);
75 if (r) {
76 return r;
77 }
78
79 /* Program GPU memory space */
80 rs600_mc_disable_clients(rdev);
81 if (rs690_mc_wait_for_idle(rdev)) {
82 printk(KERN_WARNING "Failed to wait MC idle while "
83 "programming pipes. Bad things might happen.\n");
84 }
85 tmp = rdev->mc.vram_location + rdev->mc.mc_vram_size - 1;
86 tmp = REG_SET(RS690_MC_FB_TOP, tmp >> 16);
87 tmp |= REG_SET(RS690_MC_FB_START, rdev->mc.vram_location >> 16);
88 WREG32_MC(RS690_MCCFG_FB_LOCATION, tmp);
89 /* FIXME: Does this reg exist on RS480,RS740 ? */
90 WREG32(0x310, rdev->mc.vram_location);
91 WREG32(RS690_HDP_FB_LOCATION, rdev->mc.vram_location >> 16);
92 return 0;
93 }
94
95 void rs690_mc_fini(struct radeon_device *rdev)
96 {
97 rs400_gart_disable(rdev);
98 radeon_gart_table_ram_free(rdev);
99 radeon_gart_fini(rdev);
100 }
101
102
103 /*
104 * Global GPU functions
105 */
106 int rs690_mc_wait_for_idle(struct radeon_device *rdev)
107 {
108 unsigned i;
109 uint32_t tmp;
110
111 for (i = 0; i < rdev->usec_timeout; i++) {
112 /* read MC_STATUS */
113 tmp = RREG32_MC(RS690_MC_STATUS);
114 if (tmp & RS690_MC_STATUS_IDLE) {
115 return 0;
116 }
117 DRM_UDELAY(1);
118 }
119 return -1;
120 }
121
122 void rs690_errata(struct radeon_device *rdev)
123 {
124 rdev->pll_errata = 0;
125 }
126
127 void rs690_gpu_init(struct radeon_device *rdev)
128 {
129 /* FIXME: HDP same place on rs690 ? */
130 r100_hdp_reset(rdev);
131 rs600_disable_vga(rdev);
132 /* FIXME: is this correct ? */
133 r420_pipes_init(rdev);
134 if (rs690_mc_wait_for_idle(rdev)) {
135 printk(KERN_WARNING "Failed to wait MC idle while "
136 "programming pipes. Bad things might happen.\n");
137 }
138 }
139
140
141 /*
142 * VRAM info.
143 */
144 void rs690_pm_info(struct radeon_device *rdev)
145 {
146 int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
147 struct _ATOM_INTEGRATED_SYSTEM_INFO *info;
148 struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 *info_v2;
149 void *ptr;
150 uint16_t data_offset;
151 uint8_t frev, crev;
152 fixed20_12 tmp;
153
154 atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
155 &frev, &crev, &data_offset);
156 ptr = rdev->mode_info.atom_context->bios + data_offset;
157 info = (struct _ATOM_INTEGRATED_SYSTEM_INFO *)ptr;
158 info_v2 = (struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 *)ptr;
159 /* Get various system informations from bios */
160 switch (crev) {
161 case 1:
162 tmp.full = rfixed_const(100);
163 rdev->pm.igp_sideport_mclk.full = rfixed_const(info->ulBootUpMemoryClock);
164 rdev->pm.igp_sideport_mclk.full = rfixed_div(rdev->pm.igp_sideport_mclk, tmp);
165 rdev->pm.igp_system_mclk.full = rfixed_const(le16_to_cpu(info->usK8MemoryClock));
166 rdev->pm.igp_ht_link_clk.full = rfixed_const(le16_to_cpu(info->usFSBClock));
167 rdev->pm.igp_ht_link_width.full = rfixed_const(info->ucHTLinkWidth);
168 break;
169 case 2:
170 tmp.full = rfixed_const(100);
171 rdev->pm.igp_sideport_mclk.full = rfixed_const(info_v2->ulBootUpSidePortClock);
172 rdev->pm.igp_sideport_mclk.full = rfixed_div(rdev->pm.igp_sideport_mclk, tmp);
173 rdev->pm.igp_system_mclk.full = rfixed_const(info_v2->ulBootUpUMAClock);
174 rdev->pm.igp_system_mclk.full = rfixed_div(rdev->pm.igp_system_mclk, tmp);
175 rdev->pm.igp_ht_link_clk.full = rfixed_const(info_v2->ulHTLinkFreq);
176 rdev->pm.igp_ht_link_clk.full = rfixed_div(rdev->pm.igp_ht_link_clk, tmp);
177 rdev->pm.igp_ht_link_width.full = rfixed_const(le16_to_cpu(info_v2->usMinHTLinkWidth));
178 break;
179 default:
180 tmp.full = rfixed_const(100);
181 /* We assume the slower possible clock ie worst case */
182 /* DDR 333Mhz */
183 rdev->pm.igp_sideport_mclk.full = rfixed_const(333);
184 /* FIXME: system clock ? */
185 rdev->pm.igp_system_mclk.full = rfixed_const(100);
186 rdev->pm.igp_system_mclk.full = rfixed_div(rdev->pm.igp_system_mclk, tmp);
187 rdev->pm.igp_ht_link_clk.full = rfixed_const(200);
188 rdev->pm.igp_ht_link_width.full = rfixed_const(8);
189 DRM_ERROR("No integrated system info for your GPU, using safe default\n");
190 break;
191 }
192 /* Compute various bandwidth */
193 /* k8_bandwidth = (memory_clk / 2) * 2 * 8 * 0.5 = memory_clk * 4 */
194 tmp.full = rfixed_const(4);
195 rdev->pm.k8_bandwidth.full = rfixed_mul(rdev->pm.igp_system_mclk, tmp);
196 /* ht_bandwidth = ht_clk * 2 * ht_width / 8 * 0.8
197 * = ht_clk * ht_width / 5
198 */
199 tmp.full = rfixed_const(5);
200 rdev->pm.ht_bandwidth.full = rfixed_mul(rdev->pm.igp_ht_link_clk,
201 rdev->pm.igp_ht_link_width);
202 rdev->pm.ht_bandwidth.full = rfixed_div(rdev->pm.ht_bandwidth, tmp);
203 if (tmp.full < rdev->pm.max_bandwidth.full) {
204 /* HT link is a limiting factor */
205 rdev->pm.max_bandwidth.full = tmp.full;
206 }
207 /* sideport_bandwidth = (sideport_clk / 2) * 2 * 2 * 0.7
208 * = (sideport_clk * 14) / 10
209 */
210 tmp.full = rfixed_const(14);
211 rdev->pm.sideport_bandwidth.full = rfixed_mul(rdev->pm.igp_sideport_mclk, tmp);
212 tmp.full = rfixed_const(10);
213 rdev->pm.sideport_bandwidth.full = rfixed_div(rdev->pm.sideport_bandwidth, tmp);
214 }
215
216 void rs690_vram_info(struct radeon_device *rdev)
217 {
218 uint32_t tmp;
219 fixed20_12 a;
220
221 rs400_gart_adjust_size(rdev);
222 /* DDR for all card after R300 & IGP */
223 rdev->mc.vram_is_ddr = true;
224 /* FIXME: is this correct for RS690/RS740 ? */
225 tmp = RREG32(RADEON_MEM_CNTL);
226 if (tmp & R300_MEM_NUM_CHANNELS_MASK) {
227 rdev->mc.vram_width = 128;
228 } else {
229 rdev->mc.vram_width = 64;
230 }
231 rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
232 rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
233
234 rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
235 rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
236 rs690_pm_info(rdev);
237 /* FIXME: we should enforce default clock in case GPU is not in
238 * default setup
239 */
240 a.full = rfixed_const(100);
241 rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
242 rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
243 a.full = rfixed_const(16);
244 /* core_bandwidth = sclk(Mhz) * 16 */
245 rdev->pm.core_bandwidth.full = rfixed_div(rdev->pm.sclk, a);
246 }
247
248 void rs690_line_buffer_adjust(struct radeon_device *rdev,
249 struct drm_display_mode *mode1,
250 struct drm_display_mode *mode2)
251 {
252 u32 tmp;
253
254 /*
255 * Line Buffer Setup
256 * There is a single line buffer shared by both display controllers.
257 * DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
258 * the display controllers. The paritioning can either be done
259 * manually or via one of four preset allocations specified in bits 1:0:
260 * 0 - line buffer is divided in half and shared between crtc
261 * 1 - D1 gets 3/4 of the line buffer, D2 gets 1/4
262 * 2 - D1 gets the whole buffer
263 * 3 - D1 gets 1/4 of the line buffer, D2 gets 3/4
264 * Setting bit 2 of DC_LB_MEMORY_SPLIT controls switches to manual
265 * allocation mode. In manual allocation mode, D1 always starts at 0,
266 * D1 end/2 is specified in bits 14:4; D2 allocation follows D1.
267 */
268 tmp = RREG32(DC_LB_MEMORY_SPLIT) & ~DC_LB_MEMORY_SPLIT_MASK;
269 tmp &= ~DC_LB_MEMORY_SPLIT_SHIFT_MODE;
270 /* auto */
271 if (mode1 && mode2) {
272 if (mode1->hdisplay > mode2->hdisplay) {
273 if (mode1->hdisplay > 2560)
274 tmp |= DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q;
275 else
276 tmp |= DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
277 } else if (mode2->hdisplay > mode1->hdisplay) {
278 if (mode2->hdisplay > 2560)
279 tmp |= DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
280 else
281 tmp |= DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
282 } else
283 tmp |= AVIVO_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
284 } else if (mode1) {
285 tmp |= DC_LB_MEMORY_SPLIT_D1_ONLY;
286 } else if (mode2) {
287 tmp |= DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
288 }
289 WREG32(DC_LB_MEMORY_SPLIT, tmp);
290 }
291
292 struct rs690_watermark {
293 u32 lb_request_fifo_depth;
294 fixed20_12 num_line_pair;
295 fixed20_12 estimated_width;
296 fixed20_12 worst_case_latency;
297 fixed20_12 consumption_rate;
298 fixed20_12 active_time;
299 fixed20_12 dbpp;
300 fixed20_12 priority_mark_max;
301 fixed20_12 priority_mark;
302 fixed20_12 sclk;
303 };
304
305 void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
306 struct radeon_crtc *crtc,
307 struct rs690_watermark *wm)
308 {
309 struct drm_display_mode *mode = &crtc->base.mode;
310 fixed20_12 a, b, c;
311 fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
312 fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
313 /* FIXME: detect IGP with sideport memory, i don't think there is any
314 * such product available
315 */
316 bool sideport = false;
317
318 if (!crtc->base.enabled) {
319 /* FIXME: wouldn't it better to set priority mark to maximum */
320 wm->lb_request_fifo_depth = 4;
321 return;
322 }
323
324 if (crtc->vsc.full > rfixed_const(2))
325 wm->num_line_pair.full = rfixed_const(2);
326 else
327 wm->num_line_pair.full = rfixed_const(1);
328
329 b.full = rfixed_const(mode->crtc_hdisplay);
330 c.full = rfixed_const(256);
331 a.full = rfixed_mul(wm->num_line_pair, b);
332 request_fifo_depth.full = rfixed_div(a, c);
333 if (a.full < rfixed_const(4)) {
334 wm->lb_request_fifo_depth = 4;
335 } else {
336 wm->lb_request_fifo_depth = rfixed_trunc(request_fifo_depth);
337 }
338
339 /* Determine consumption rate
340 * pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
341 * vtaps = number of vertical taps,
342 * vsc = vertical scaling ratio, defined as source/destination
343 * hsc = horizontal scaling ration, defined as source/destination
344 */
345 a.full = rfixed_const(mode->clock);
346 b.full = rfixed_const(1000);
347 a.full = rfixed_div(a, b);
348 pclk.full = rfixed_div(b, a);
349 if (crtc->rmx_type != RMX_OFF) {
350 b.full = rfixed_const(2);
351 if (crtc->vsc.full > b.full)
352 b.full = crtc->vsc.full;
353 b.full = rfixed_mul(b, crtc->hsc);
354 c.full = rfixed_const(2);
355 b.full = rfixed_div(b, c);
356 consumption_time.full = rfixed_div(pclk, b);
357 } else {
358 consumption_time.full = pclk.full;
359 }
360 a.full = rfixed_const(1);
361 wm->consumption_rate.full = rfixed_div(a, consumption_time);
362
363
364 /* Determine line time
365 * LineTime = total time for one line of displayhtotal
366 * LineTime = total number of horizontal pixels
367 * pclk = pixel clock period(ns)
368 */
369 a.full = rfixed_const(crtc->base.mode.crtc_htotal);
370 line_time.full = rfixed_mul(a, pclk);
371
372 /* Determine active time
373 * ActiveTime = time of active region of display within one line,
374 * hactive = total number of horizontal active pixels
375 * htotal = total number of horizontal pixels
376 */
377 a.full = rfixed_const(crtc->base.mode.crtc_htotal);
378 b.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
379 wm->active_time.full = rfixed_mul(line_time, b);
380 wm->active_time.full = rfixed_div(wm->active_time, a);
381
382 /* Maximun bandwidth is the minimun bandwidth of all component */
383 rdev->pm.max_bandwidth = rdev->pm.core_bandwidth;
384 if (sideport) {
385 if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
386 rdev->pm.sideport_bandwidth.full)
387 rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth;
388 read_delay_latency.full = rfixed_const(370 * 800 * 1000);
389 read_delay_latency.full = rfixed_div(read_delay_latency,
390 rdev->pm.igp_sideport_mclk);
391 } else {
392 if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
393 rdev->pm.k8_bandwidth.full)
394 rdev->pm.max_bandwidth = rdev->pm.k8_bandwidth;
395 if (rdev->pm.max_bandwidth.full > rdev->pm.ht_bandwidth.full &&
396 rdev->pm.ht_bandwidth.full)
397 rdev->pm.max_bandwidth = rdev->pm.ht_bandwidth;
398 read_delay_latency.full = rfixed_const(5000);
399 }
400
401 /* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */
402 a.full = rfixed_const(16);
403 rdev->pm.sclk.full = rfixed_mul(rdev->pm.max_bandwidth, a);
404 a.full = rfixed_const(1000);
405 rdev->pm.sclk.full = rfixed_div(a, rdev->pm.sclk);
406 /* Determine chunk time
407 * ChunkTime = the time it takes the DCP to send one chunk of data
408 * to the LB which consists of pipeline delay and inter chunk gap
409 * sclk = system clock(ns)
410 */
411 a.full = rfixed_const(256 * 13);
412 chunk_time.full = rfixed_mul(rdev->pm.sclk, a);
413 a.full = rfixed_const(10);
414 chunk_time.full = rfixed_div(chunk_time, a);
415
416 /* Determine the worst case latency
417 * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
418 * WorstCaseLatency = worst case time from urgent to when the MC starts
419 * to return data
420 * READ_DELAY_IDLE_MAX = constant of 1us
421 * ChunkTime = time it takes the DCP to send one chunk of data to the LB
422 * which consists of pipeline delay and inter chunk gap
423 */
424 if (rfixed_trunc(wm->num_line_pair) > 1) {
425 a.full = rfixed_const(3);
426 wm->worst_case_latency.full = rfixed_mul(a, chunk_time);
427 wm->worst_case_latency.full += read_delay_latency.full;
428 } else {
429 a.full = rfixed_const(2);
430 wm->worst_case_latency.full = rfixed_mul(a, chunk_time);
431 wm->worst_case_latency.full += read_delay_latency.full;
432 }
433
434 /* Determine the tolerable latency
435 * TolerableLatency = Any given request has only 1 line time
436 * for the data to be returned
437 * LBRequestFifoDepth = Number of chunk requests the LB can
438 * put into the request FIFO for a display
439 * LineTime = total time for one line of display
440 * ChunkTime = the time it takes the DCP to send one chunk
441 * of data to the LB which consists of
442 * pipeline delay and inter chunk gap
443 */
444 if ((2+wm->lb_request_fifo_depth) >= rfixed_trunc(request_fifo_depth)) {
445 tolerable_latency.full = line_time.full;
446 } else {
447 tolerable_latency.full = rfixed_const(wm->lb_request_fifo_depth - 2);
448 tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
449 tolerable_latency.full = rfixed_mul(tolerable_latency, chunk_time);
450 tolerable_latency.full = line_time.full - tolerable_latency.full;
451 }
452 /* We assume worst case 32bits (4 bytes) */
453 wm->dbpp.full = rfixed_const(4 * 8);
454
455 /* Determine the maximum priority mark
456 * width = viewport width in pixels
457 */
458 a.full = rfixed_const(16);
459 wm->priority_mark_max.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
460 wm->priority_mark_max.full = rfixed_div(wm->priority_mark_max, a);
461
462 /* Determine estimated width */
463 estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
464 estimated_width.full = rfixed_div(estimated_width, consumption_time);
465 if (rfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
466 wm->priority_mark.full = rfixed_const(10);
467 } else {
468 a.full = rfixed_const(16);
469 wm->priority_mark.full = rfixed_div(estimated_width, a);
470 wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
471 }
472 }
473
474 void rs690_bandwidth_update(struct radeon_device *rdev)
475 {
476 struct drm_display_mode *mode0 = NULL;
477 struct drm_display_mode *mode1 = NULL;
478 struct rs690_watermark wm0;
479 struct rs690_watermark wm1;
480 u32 tmp;
481 fixed20_12 priority_mark02, priority_mark12, fill_rate;
482 fixed20_12 a, b;
483
484 if (rdev->mode_info.crtcs[0]->base.enabled)
485 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
486 if (rdev->mode_info.crtcs[1]->base.enabled)
487 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
488 /*
489 * Set display0/1 priority up in the memory controller for
490 * modes if the user specifies HIGH for displaypriority
491 * option.
492 */
493 if (rdev->disp_priority == 2) {
494 tmp = RREG32_MC(MC_INIT_MISC_LAT_TIMER);
495 tmp &= ~MC_DISP1R_INIT_LAT_MASK;
496 tmp &= ~MC_DISP0R_INIT_LAT_MASK;
497 if (mode1)
498 tmp |= (1 << MC_DISP1R_INIT_LAT_SHIFT);
499 if (mode0)
500 tmp |= (1 << MC_DISP0R_INIT_LAT_SHIFT);
501 WREG32_MC(MC_INIT_MISC_LAT_TIMER, tmp);
502 }
503 rs690_line_buffer_adjust(rdev, mode0, mode1);
504
505 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))
506 WREG32(DCP_CONTROL, 0);
507 if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
508 WREG32(DCP_CONTROL, 2);
509
510 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0);
511 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1);
512
513 tmp = (wm0.lb_request_fifo_depth - 1);
514 tmp |= (wm1.lb_request_fifo_depth - 1) << 16;
515 WREG32(LB_MAX_REQ_OUTSTANDING, tmp);
516
517 if (mode0 && mode1) {
518 if (rfixed_trunc(wm0.dbpp) > 64)
519 a.full = rfixed_mul(wm0.dbpp, wm0.num_line_pair);
520 else
521 a.full = wm0.num_line_pair.full;
522 if (rfixed_trunc(wm1.dbpp) > 64)
523 b.full = rfixed_mul(wm1.dbpp, wm1.num_line_pair);
524 else
525 b.full = wm1.num_line_pair.full;
526 a.full += b.full;
527 fill_rate.full = rfixed_div(wm0.sclk, a);
528 if (wm0.consumption_rate.full > fill_rate.full) {
529 b.full = wm0.consumption_rate.full - fill_rate.full;
530 b.full = rfixed_mul(b, wm0.active_time);
531 a.full = rfixed_mul(wm0.worst_case_latency,
532 wm0.consumption_rate);
533 a.full = a.full + b.full;
534 b.full = rfixed_const(16 * 1000);
535 priority_mark02.full = rfixed_div(a, b);
536 } else {
537 a.full = rfixed_mul(wm0.worst_case_latency,
538 wm0.consumption_rate);
539 b.full = rfixed_const(16 * 1000);
540 priority_mark02.full = rfixed_div(a, b);
541 }
542 if (wm1.consumption_rate.full > fill_rate.full) {
543 b.full = wm1.consumption_rate.full - fill_rate.full;
544 b.full = rfixed_mul(b, wm1.active_time);
545 a.full = rfixed_mul(wm1.worst_case_latency,
546 wm1.consumption_rate);
547 a.full = a.full + b.full;
548 b.full = rfixed_const(16 * 1000);
549 priority_mark12.full = rfixed_div(a, b);
550 } else {
551 a.full = rfixed_mul(wm1.worst_case_latency,
552 wm1.consumption_rate);
553 b.full = rfixed_const(16 * 1000);
554 priority_mark12.full = rfixed_div(a, b);
555 }
556 if (wm0.priority_mark.full > priority_mark02.full)
557 priority_mark02.full = wm0.priority_mark.full;
558 if (rfixed_trunc(priority_mark02) < 0)
559 priority_mark02.full = 0;
560 if (wm0.priority_mark_max.full > priority_mark02.full)
561 priority_mark02.full = wm0.priority_mark_max.full;
562 if (wm1.priority_mark.full > priority_mark12.full)
563 priority_mark12.full = wm1.priority_mark.full;
564 if (rfixed_trunc(priority_mark12) < 0)
565 priority_mark12.full = 0;
566 if (wm1.priority_mark_max.full > priority_mark12.full)
567 priority_mark12.full = wm1.priority_mark_max.full;
568 WREG32(D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
569 WREG32(D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
570 WREG32(D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
571 WREG32(D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
572 } else if (mode0) {
573 if (rfixed_trunc(wm0.dbpp) > 64)
574 a.full = rfixed_mul(wm0.dbpp, wm0.num_line_pair);
575 else
576 a.full = wm0.num_line_pair.full;
577 fill_rate.full = rfixed_div(wm0.sclk, a);
578 if (wm0.consumption_rate.full > fill_rate.full) {
579 b.full = wm0.consumption_rate.full - fill_rate.full;
580 b.full = rfixed_mul(b, wm0.active_time);
581 a.full = rfixed_mul(wm0.worst_case_latency,
582 wm0.consumption_rate);
583 a.full = a.full + b.full;
584 b.full = rfixed_const(16 * 1000);
585 priority_mark02.full = rfixed_div(a, b);
586 } else {
587 a.full = rfixed_mul(wm0.worst_case_latency,
588 wm0.consumption_rate);
589 b.full = rfixed_const(16 * 1000);
590 priority_mark02.full = rfixed_div(a, b);
591 }
592 if (wm0.priority_mark.full > priority_mark02.full)
593 priority_mark02.full = wm0.priority_mark.full;
594 if (rfixed_trunc(priority_mark02) < 0)
595 priority_mark02.full = 0;
596 if (wm0.priority_mark_max.full > priority_mark02.full)
597 priority_mark02.full = wm0.priority_mark_max.full;
598 WREG32(D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
599 WREG32(D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
600 WREG32(D2MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF);
601 WREG32(D2MODE_PRIORITY_B_CNT, MODE_PRIORITY_OFF);
602 } else {
603 if (rfixed_trunc(wm1.dbpp) > 64)
604 a.full = rfixed_mul(wm1.dbpp, wm1.num_line_pair);
605 else
606 a.full = wm1.num_line_pair.full;
607 fill_rate.full = rfixed_div(wm1.sclk, a);
608 if (wm1.consumption_rate.full > fill_rate.full) {
609 b.full = wm1.consumption_rate.full - fill_rate.full;
610 b.full = rfixed_mul(b, wm1.active_time);
611 a.full = rfixed_mul(wm1.worst_case_latency,
612 wm1.consumption_rate);
613 a.full = a.full + b.full;
614 b.full = rfixed_const(16 * 1000);
615 priority_mark12.full = rfixed_div(a, b);
616 } else {
617 a.full = rfixed_mul(wm1.worst_case_latency,
618 wm1.consumption_rate);
619 b.full = rfixed_const(16 * 1000);
620 priority_mark12.full = rfixed_div(a, b);
621 }
622 if (wm1.priority_mark.full > priority_mark12.full)
623 priority_mark12.full = wm1.priority_mark.full;
624 if (rfixed_trunc(priority_mark12) < 0)
625 priority_mark12.full = 0;
626 if (wm1.priority_mark_max.full > priority_mark12.full)
627 priority_mark12.full = wm1.priority_mark_max.full;
628 WREG32(D1MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF);
629 WREG32(D1MODE_PRIORITY_B_CNT, MODE_PRIORITY_OFF);
630 WREG32(D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
631 WREG32(D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
632 }
633 }
634
635 /*
636 * Indirect registers accessor
637 */
638 uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg)
639 {
640 uint32_t r;
641
642 WREG32(RS690_MC_INDEX, (reg & RS690_MC_INDEX_MASK));
643 r = RREG32(RS690_MC_DATA);
644 WREG32(RS690_MC_INDEX, RS690_MC_INDEX_MASK);
645 return r;
646 }
647
648 void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
649 {
650 WREG32(RS690_MC_INDEX,
651 RS690_MC_INDEX_WR_EN | ((reg) & RS690_MC_INDEX_MASK));
652 WREG32(RS690_MC_DATA, v);
653 WREG32(RS690_MC_INDEX, RS690_MC_INDEX_WR_ACK);
654 }
655
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree