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WIP FPC-III support
[linux/fpc-iii.git] / drivers / gpu / drm / radeon / rs690.c
blobc296f94f9700e3967901a9c056aacbd4f44fa318
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
29 #include <linux/pci.h>
30
31 #include "atom.h"
32 #include "radeon.h"
33 #include "radeon_asic.h"
34 #include "radeon_audio.h"
35 #include "rs690d.h"
36
37 int rs690_mc_wait_for_idle(struct radeon_device *rdev)
38 {
39 unsigned i;
40 uint32_t tmp;
41
42 for (i = 0; i < rdev->usec_timeout; i++) {
43 /* read MC_STATUS */
44 tmp = RREG32_MC(R_000090_MC_SYSTEM_STATUS);
45 if (G_000090_MC_SYSTEM_IDLE(tmp))
46 return 0;
47 udelay(1);
48 }
49 return -1;
50 }
51
52 static void rs690_gpu_init(struct radeon_device *rdev)
53 {
54 /* FIXME: is this correct ? */
55 r420_pipes_init(rdev);
56 if (rs690_mc_wait_for_idle(rdev)) {
57 pr_warn("Failed to wait MC idle while programming pipes. Bad things might happen.\n");
58 }
59 }
60
61 union igp_info {
62 struct _ATOM_INTEGRATED_SYSTEM_INFO info;
63 struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_v2;
64 };
65
66 void rs690_pm_info(struct radeon_device *rdev)
67 {
68 int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
69 union igp_info *info;
70 uint16_t data_offset;
71 uint8_t frev, crev;
72 fixed20_12 tmp;
73
74 if (atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
75 &frev, &crev, &data_offset)) {
76 info = (union igp_info *)(rdev->mode_info.atom_context->bios + data_offset);
77
78 /* Get various system informations from bios */
79 switch (crev) {
80 case 1:
81 tmp.full = dfixed_const(100);
82 rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info.ulBootUpMemoryClock));
83 rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp);
84 if (le16_to_cpu(info->info.usK8MemoryClock))
85 rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock));
86 else if (rdev->clock.default_mclk) {
87 rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk);
88 rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
89 } else
90 rdev->pm.igp_system_mclk.full = dfixed_const(400);
91 rdev->pm.igp_ht_link_clk.full = dfixed_const(le16_to_cpu(info->info.usFSBClock));
92 rdev->pm.igp_ht_link_width.full = dfixed_const(info->info.ucHTLinkWidth);
93 break;
94 case 2:
95 tmp.full = dfixed_const(100);
96 rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpSidePortClock));
97 rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp);
98 if (le32_to_cpu(info->info_v2.ulBootUpUMAClock))
99 rdev->pm.igp_system_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpUMAClock));
100 else if (rdev->clock.default_mclk)
101 rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk);
102 else
103 rdev->pm.igp_system_mclk.full = dfixed_const(66700);
104 rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
105 rdev->pm.igp_ht_link_clk.full = dfixed_const(le32_to_cpu(info->info_v2.ulHTLinkFreq));
106 rdev->pm.igp_ht_link_clk.full = dfixed_div(rdev->pm.igp_ht_link_clk, tmp);
107 rdev->pm.igp_ht_link_width.full = dfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth));
108 break;
109 default:
110 /* We assume the slower possible clock ie worst case */
111 rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
112 rdev->pm.igp_system_mclk.full = dfixed_const(200);
113 rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
114 rdev->pm.igp_ht_link_width.full = dfixed_const(8);
115 DRM_ERROR("No integrated system info for your GPU, using safe default\n");
116 break;
117 }
118 } else {
119 /* We assume the slower possible clock ie worst case */
120 rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
121 rdev->pm.igp_system_mclk.full = dfixed_const(200);
122 rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
123 rdev->pm.igp_ht_link_width.full = dfixed_const(8);
124 DRM_ERROR("No integrated system info for your GPU, using safe default\n");
125 }
126 /* Compute various bandwidth */
127 /* k8_bandwidth = (memory_clk / 2) * 2 * 8 * 0.5 = memory_clk * 4 */
128 tmp.full = dfixed_const(4);
129 rdev->pm.k8_bandwidth.full = dfixed_mul(rdev->pm.igp_system_mclk, tmp);
130 /* ht_bandwidth = ht_clk * 2 * ht_width / 8 * 0.8
131 * = ht_clk * ht_width / 5
132 */
133 tmp.full = dfixed_const(5);
134 rdev->pm.ht_bandwidth.full = dfixed_mul(rdev->pm.igp_ht_link_clk,
135 rdev->pm.igp_ht_link_width);
136 rdev->pm.ht_bandwidth.full = dfixed_div(rdev->pm.ht_bandwidth, tmp);
137 if (tmp.full < rdev->pm.max_bandwidth.full) {
138 /* HT link is a limiting factor */
139 rdev->pm.max_bandwidth.full = tmp.full;
140 }
141 /* sideport_bandwidth = (sideport_clk / 2) * 2 * 2 * 0.7
142 * = (sideport_clk * 14) / 10
143 */
144 tmp.full = dfixed_const(14);
145 rdev->pm.sideport_bandwidth.full = dfixed_mul(rdev->pm.igp_sideport_mclk, tmp);
146 tmp.full = dfixed_const(10);
147 rdev->pm.sideport_bandwidth.full = dfixed_div(rdev->pm.sideport_bandwidth, tmp);
148 }
149
150 static void rs690_mc_init(struct radeon_device *rdev)
151 {
152 u64 base;
153 uint32_t h_addr, l_addr;
154 unsigned long long k8_addr;
155
156 rs400_gart_adjust_size(rdev);
157 rdev->mc.vram_is_ddr = true;
158 rdev->mc.vram_width = 128;
159 rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
160 rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
161 rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
162 rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
163 rdev->mc.visible_vram_size = rdev->mc.aper_size;
164 base = RREG32_MC(R_000100_MCCFG_FB_LOCATION);
165 base = G_000100_MC_FB_START(base) << 16;
166 rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
167 /* Some boards seem to be configured for 128MB of sideport memory,
168 * but really only have 64MB. Just skip the sideport and use
169 * UMA memory.
170 */
171 if (rdev->mc.igp_sideport_enabled &&
172 (rdev->mc.real_vram_size == (384 * 1024 * 1024))) {
173 base += 128 * 1024 * 1024;
174 rdev->mc.real_vram_size -= 128 * 1024 * 1024;
175 rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
176 }
177
178 /* Use K8 direct mapping for fast fb access. */
179 rdev->fastfb_working = false;
180 h_addr = G_00005F_K8_ADDR_EXT(RREG32_MC(R_00005F_MC_MISC_UMA_CNTL));
181 l_addr = RREG32_MC(R_00001E_K8_FB_LOCATION);
182 k8_addr = ((unsigned long long)h_addr) << 32 | l_addr;
183 #if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE)
184 if (k8_addr + rdev->mc.visible_vram_size < 0x100000000ULL)
185 #endif
186 {
187 /* FastFB shall be used with UMA memory. Here it is simply disabled when sideport
188 * memory is present.
189 */
190 if (rdev->mc.igp_sideport_enabled == false && radeon_fastfb == 1) {
191 DRM_INFO("Direct mapping: aper base at 0x%llx, replaced by direct mapping base 0x%llx.\n",
192 (unsigned long long)rdev->mc.aper_base, k8_addr);
193 rdev->mc.aper_base = (resource_size_t)k8_addr;
194 rdev->fastfb_working = true;
195 }
196 }
197
198 rs690_pm_info(rdev);
199 radeon_vram_location(rdev, &rdev->mc, base);
200 rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1;
201 radeon_gtt_location(rdev, &rdev->mc);
202 radeon_update_bandwidth_info(rdev);
203 }
204
205 void rs690_line_buffer_adjust(struct radeon_device *rdev,
206 struct drm_display_mode *mode1,
207 struct drm_display_mode *mode2)
208 {
209 u32 tmp;
210
211 /* Guess line buffer size to be 8192 pixels */
212 u32 lb_size = 8192;
213
214 /*
215 * Line Buffer Setup
216 * There is a single line buffer shared by both display controllers.
217 * R_006520_DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
218 * the display controllers. The paritioning can either be done
219 * manually or via one of four preset allocations specified in bits 1:0:
220 * 0 - line buffer is divided in half and shared between crtc
221 * 1 - D1 gets 3/4 of the line buffer, D2 gets 1/4
222 * 2 - D1 gets the whole buffer
223 * 3 - D1 gets 1/4 of the line buffer, D2 gets 3/4
224 * Setting bit 2 of R_006520_DC_LB_MEMORY_SPLIT controls switches to manual
225 * allocation mode. In manual allocation mode, D1 always starts at 0,
226 * D1 end/2 is specified in bits 14:4; D2 allocation follows D1.
227 */
228 tmp = RREG32(R_006520_DC_LB_MEMORY_SPLIT) & C_006520_DC_LB_MEMORY_SPLIT;
229 tmp &= ~C_006520_DC_LB_MEMORY_SPLIT_MODE;
230 /* auto */
231 if (mode1 && mode2) {
232 if (mode1->hdisplay > mode2->hdisplay) {
233 if (mode1->hdisplay > 2560)
234 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q;
235 else
236 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
237 } else if (mode2->hdisplay > mode1->hdisplay) {
238 if (mode2->hdisplay > 2560)
239 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
240 else
241 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
242 } else
243 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
244 } else if (mode1) {
245 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_ONLY;
246 } else if (mode2) {
247 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
248 }
249 WREG32(R_006520_DC_LB_MEMORY_SPLIT, tmp);
250
251 /* Save number of lines the linebuffer leads before the scanout */
252 if (mode1)
253 rdev->mode_info.crtcs[0]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode1->crtc_hdisplay);
254
255 if (mode2)
256 rdev->mode_info.crtcs[1]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode2->crtc_hdisplay);
257 }
258
259 struct rs690_watermark {
260 u32 lb_request_fifo_depth;
261 fixed20_12 num_line_pair;
262 fixed20_12 estimated_width;
263 fixed20_12 worst_case_latency;
264 fixed20_12 consumption_rate;
265 fixed20_12 active_time;
266 fixed20_12 dbpp;
267 fixed20_12 priority_mark_max;
268 fixed20_12 priority_mark;
269 fixed20_12 sclk;
270 };
271
272 static void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
273 struct radeon_crtc *crtc,
274 struct rs690_watermark *wm,
275 bool low)
276 {
277 struct drm_display_mode *mode = &crtc->base.mode;
278 fixed20_12 a, b, c;
279 fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
280 fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
281 fixed20_12 sclk, core_bandwidth, max_bandwidth;
282 u32 selected_sclk;
283
284 if (!crtc->base.enabled) {
285 /* FIXME: wouldn't it better to set priority mark to maximum */
286 wm->lb_request_fifo_depth = 4;
287 return;
288 }
289
290 if (((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880)) &&
291 (rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
292 selected_sclk = radeon_dpm_get_sclk(rdev, low);
293 else
294 selected_sclk = rdev->pm.current_sclk;
295
296 /* sclk in Mhz */
297 a.full = dfixed_const(100);
298 sclk.full = dfixed_const(selected_sclk);
299 sclk.full = dfixed_div(sclk, a);
300
301 /* core_bandwidth = sclk(Mhz) * 16 */
302 a.full = dfixed_const(16);
303 core_bandwidth.full = dfixed_div(rdev->pm.sclk, a);
304
305 if (crtc->vsc.full > dfixed_const(2))
306 wm->num_line_pair.full = dfixed_const(2);
307 else
308 wm->num_line_pair.full = dfixed_const(1);
309
310 b.full = dfixed_const(mode->crtc_hdisplay);
311 c.full = dfixed_const(256);
312 a.full = dfixed_div(b, c);
313 request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair);
314 request_fifo_depth.full = dfixed_ceil(request_fifo_depth);
315 if (a.full < dfixed_const(4)) {
316 wm->lb_request_fifo_depth = 4;
317 } else {
318 wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth);
319 }
320
321 /* Determine consumption rate
322 * pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
323 * vtaps = number of vertical taps,
324 * vsc = vertical scaling ratio, defined as source/destination
325 * hsc = horizontal scaling ration, defined as source/destination
326 */
327 a.full = dfixed_const(mode->clock);
328 b.full = dfixed_const(1000);
329 a.full = dfixed_div(a, b);
330 pclk.full = dfixed_div(b, a);
331 if (crtc->rmx_type != RMX_OFF) {
332 b.full = dfixed_const(2);
333 if (crtc->vsc.full > b.full)
334 b.full = crtc->vsc.full;
335 b.full = dfixed_mul(b, crtc->hsc);
336 c.full = dfixed_const(2);
337 b.full = dfixed_div(b, c);
338 consumption_time.full = dfixed_div(pclk, b);
339 } else {
340 consumption_time.full = pclk.full;
341 }
342 a.full = dfixed_const(1);
343 wm->consumption_rate.full = dfixed_div(a, consumption_time);
344
345
346 /* Determine line time
347 * LineTime = total time for one line of displayhtotal
348 * LineTime = total number of horizontal pixels
349 * pclk = pixel clock period(ns)
350 */
351 a.full = dfixed_const(crtc->base.mode.crtc_htotal);
352 line_time.full = dfixed_mul(a, pclk);
353
354 /* Determine active time
355 * ActiveTime = time of active region of display within one line,
356 * hactive = total number of horizontal active pixels
357 * htotal = total number of horizontal pixels
358 */
359 a.full = dfixed_const(crtc->base.mode.crtc_htotal);
360 b.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
361 wm->active_time.full = dfixed_mul(line_time, b);
362 wm->active_time.full = dfixed_div(wm->active_time, a);
363
364 /* Maximun bandwidth is the minimun bandwidth of all component */
365 max_bandwidth = core_bandwidth;
366 if (rdev->mc.igp_sideport_enabled) {
367 if (max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
368 rdev->pm.sideport_bandwidth.full)
369 max_bandwidth = rdev->pm.sideport_bandwidth;
370 read_delay_latency.full = dfixed_const(370 * 800);
371 a.full = dfixed_const(1000);
372 b.full = dfixed_div(rdev->pm.igp_sideport_mclk, a);
373 read_delay_latency.full = dfixed_div(read_delay_latency, b);
374 read_delay_latency.full = dfixed_mul(read_delay_latency, a);
375 } else {
376 if (max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
377 rdev->pm.k8_bandwidth.full)
378 max_bandwidth = rdev->pm.k8_bandwidth;
379 if (max_bandwidth.full > rdev->pm.ht_bandwidth.full &&
380 rdev->pm.ht_bandwidth.full)
381 max_bandwidth = rdev->pm.ht_bandwidth;
382 read_delay_latency.full = dfixed_const(5000);
383 }
384
385 /* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */
386 a.full = dfixed_const(16);
387 sclk.full = dfixed_mul(max_bandwidth, a);
388 a.full = dfixed_const(1000);
389 sclk.full = dfixed_div(a, sclk);
390 /* Determine chunk time
391 * ChunkTime = the time it takes the DCP to send one chunk of data
392 * to the LB which consists of pipeline delay and inter chunk gap
393 * sclk = system clock(ns)
394 */
395 a.full = dfixed_const(256 * 13);
396 chunk_time.full = dfixed_mul(sclk, a);
397 a.full = dfixed_const(10);
398 chunk_time.full = dfixed_div(chunk_time, a);
399
400 /* Determine the worst case latency
401 * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
402 * WorstCaseLatency = worst case time from urgent to when the MC starts
403 * to return data
404 * READ_DELAY_IDLE_MAX = constant of 1us
405 * ChunkTime = time it takes the DCP to send one chunk of data to the LB
406 * which consists of pipeline delay and inter chunk gap
407 */
408 if (dfixed_trunc(wm->num_line_pair) > 1) {
409 a.full = dfixed_const(3);
410 wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
411 wm->worst_case_latency.full += read_delay_latency.full;
412 } else {
413 a.full = dfixed_const(2);
414 wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
415 wm->worst_case_latency.full += read_delay_latency.full;
416 }
417
418 /* Determine the tolerable latency
419 * TolerableLatency = Any given request has only 1 line time
420 * for the data to be returned
421 * LBRequestFifoDepth = Number of chunk requests the LB can
422 * put into the request FIFO for a display
423 * LineTime = total time for one line of display
424 * ChunkTime = the time it takes the DCP to send one chunk
425 * of data to the LB which consists of
426 * pipeline delay and inter chunk gap
427 */
428 if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) {
429 tolerable_latency.full = line_time.full;
430 } else {
431 tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2);
432 tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
433 tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time);
434 tolerable_latency.full = line_time.full - tolerable_latency.full;
435 }
436 /* We assume worst case 32bits (4 bytes) */
437 wm->dbpp.full = dfixed_const(4 * 8);
438
439 /* Determine the maximum priority mark
440 * width = viewport width in pixels
441 */
442 a.full = dfixed_const(16);
443 wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
444 wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a);
445 wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max);
446
447 /* Determine estimated width */
448 estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
449 estimated_width.full = dfixed_div(estimated_width, consumption_time);
450 if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
451 wm->priority_mark.full = dfixed_const(10);
452 } else {
453 a.full = dfixed_const(16);
454 wm->priority_mark.full = dfixed_div(estimated_width, a);
455 wm->priority_mark.full = dfixed_ceil(wm->priority_mark);
456 wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
457 }
458 }
459
460 static void rs690_compute_mode_priority(struct radeon_device *rdev,
461 struct rs690_watermark *wm0,
462 struct rs690_watermark *wm1,
463 struct drm_display_mode *mode0,
464 struct drm_display_mode *mode1,
465 u32 *d1mode_priority_a_cnt,
466 u32 *d2mode_priority_a_cnt)
467 {
468 fixed20_12 priority_mark02, priority_mark12, fill_rate;
469 fixed20_12 a, b;
470
471 *d1mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1);
472 *d2mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1);
473
474 if (mode0 && mode1) {
475 if (dfixed_trunc(wm0->dbpp) > 64)
476 a.full = dfixed_mul(wm0->dbpp, wm0->num_line_pair);
477 else
478 a.full = wm0->num_line_pair.full;
479 if (dfixed_trunc(wm1->dbpp) > 64)
480 b.full = dfixed_mul(wm1->dbpp, wm1->num_line_pair);
481 else
482 b.full = wm1->num_line_pair.full;
483 a.full += b.full;
484 fill_rate.full = dfixed_div(wm0->sclk, a);
485 if (wm0->consumption_rate.full > fill_rate.full) {
486 b.full = wm0->consumption_rate.full - fill_rate.full;
487 b.full = dfixed_mul(b, wm0->active_time);
488 a.full = dfixed_mul(wm0->worst_case_latency,
489 wm0->consumption_rate);
490 a.full = a.full + b.full;
491 b.full = dfixed_const(16 * 1000);
492 priority_mark02.full = dfixed_div(a, b);
493 } else {
494 a.full = dfixed_mul(wm0->worst_case_latency,
495 wm0->consumption_rate);
496 b.full = dfixed_const(16 * 1000);
497 priority_mark02.full = dfixed_div(a, b);
498 }
499 if (wm1->consumption_rate.full > fill_rate.full) {
500 b.full = wm1->consumption_rate.full - fill_rate.full;
501 b.full = dfixed_mul(b, wm1->active_time);
502 a.full = dfixed_mul(wm1->worst_case_latency,
503 wm1->consumption_rate);
504 a.full = a.full + b.full;
505 b.full = dfixed_const(16 * 1000);
506 priority_mark12.full = dfixed_div(a, b);
507 } else {
508 a.full = dfixed_mul(wm1->worst_case_latency,
509 wm1->consumption_rate);
510 b.full = dfixed_const(16 * 1000);
511 priority_mark12.full = dfixed_div(a, b);
512 }
513 if (wm0->priority_mark.full > priority_mark02.full)
514 priority_mark02.full = wm0->priority_mark.full;
515 if (wm0->priority_mark_max.full > priority_mark02.full)
516 priority_mark02.full = wm0->priority_mark_max.full;
517 if (wm1->priority_mark.full > priority_mark12.full)
518 priority_mark12.full = wm1->priority_mark.full;
519 if (wm1->priority_mark_max.full > priority_mark12.full)
520 priority_mark12.full = wm1->priority_mark_max.full;
521 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
522 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
523 if (rdev->disp_priority == 2) {
524 *d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
525 *d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
526 }
527 } else if (mode0) {
528 if (dfixed_trunc(wm0->dbpp) > 64)
529 a.full = dfixed_mul(wm0->dbpp, wm0->num_line_pair);
530 else
531 a.full = wm0->num_line_pair.full;
532 fill_rate.full = dfixed_div(wm0->sclk, a);
533 if (wm0->consumption_rate.full > fill_rate.full) {
534 b.full = wm0->consumption_rate.full - fill_rate.full;
535 b.full = dfixed_mul(b, wm0->active_time);
536 a.full = dfixed_mul(wm0->worst_case_latency,
537 wm0->consumption_rate);
538 a.full = a.full + b.full;
539 b.full = dfixed_const(16 * 1000);
540 priority_mark02.full = dfixed_div(a, b);
541 } else {
542 a.full = dfixed_mul(wm0->worst_case_latency,
543 wm0->consumption_rate);
544 b.full = dfixed_const(16 * 1000);
545 priority_mark02.full = dfixed_div(a, b);
546 }
547 if (wm0->priority_mark.full > priority_mark02.full)
548 priority_mark02.full = wm0->priority_mark.full;
549 if (wm0->priority_mark_max.full > priority_mark02.full)
550 priority_mark02.full = wm0->priority_mark_max.full;
551 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
552 if (rdev->disp_priority == 2)
553 *d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
554 } else if (mode1) {
555 if (dfixed_trunc(wm1->dbpp) > 64)
556 a.full = dfixed_mul(wm1->dbpp, wm1->num_line_pair);
557 else
558 a.full = wm1->num_line_pair.full;
559 fill_rate.full = dfixed_div(wm1->sclk, a);
560 if (wm1->consumption_rate.full > fill_rate.full) {
561 b.full = wm1->consumption_rate.full - fill_rate.full;
562 b.full = dfixed_mul(b, wm1->active_time);
563 a.full = dfixed_mul(wm1->worst_case_latency,
564 wm1->consumption_rate);
565 a.full = a.full + b.full;
566 b.full = dfixed_const(16 * 1000);
567 priority_mark12.full = dfixed_div(a, b);
568 } else {
569 a.full = dfixed_mul(wm1->worst_case_latency,
570 wm1->consumption_rate);
571 b.full = dfixed_const(16 * 1000);
572 priority_mark12.full = dfixed_div(a, b);
573 }
574 if (wm1->priority_mark.full > priority_mark12.full)
575 priority_mark12.full = wm1->priority_mark.full;
576 if (wm1->priority_mark_max.full > priority_mark12.full)
577 priority_mark12.full = wm1->priority_mark_max.full;
578 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
579 if (rdev->disp_priority == 2)
580 *d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
581 }
582 }
583
584 void rs690_bandwidth_update(struct radeon_device *rdev)
585 {
586 struct drm_display_mode *mode0 = NULL;
587 struct drm_display_mode *mode1 = NULL;
588 struct rs690_watermark wm0_high, wm0_low;
589 struct rs690_watermark wm1_high, wm1_low;
590 u32 tmp;
591 u32 d1mode_priority_a_cnt, d1mode_priority_b_cnt;
592 u32 d2mode_priority_a_cnt, d2mode_priority_b_cnt;
593
594 if (!rdev->mode_info.mode_config_initialized)
595 return;
596
597 radeon_update_display_priority(rdev);
598
599 if (rdev->mode_info.crtcs[0]->base.enabled)
600 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
601 if (rdev->mode_info.crtcs[1]->base.enabled)
602 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
603 /*
604 * Set display0/1 priority up in the memory controller for
605 * modes if the user specifies HIGH for displaypriority
606 * option.
607 */
608 if ((rdev->disp_priority == 2) &&
609 ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))) {
610 tmp = RREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER);
611 tmp &= C_000104_MC_DISP0R_INIT_LAT;
612 tmp &= C_000104_MC_DISP1R_INIT_LAT;
613 if (mode0)
614 tmp |= S_000104_MC_DISP0R_INIT_LAT(1);
615 if (mode1)
616 tmp |= S_000104_MC_DISP1R_INIT_LAT(1);
617 WREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER, tmp);
618 }
619 rs690_line_buffer_adjust(rdev, mode0, mode1);
620
621 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))
622 WREG32(R_006C9C_DCP_CONTROL, 0);
623 if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
624 WREG32(R_006C9C_DCP_CONTROL, 2);
625
626 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_high, false);
627 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_high, false);
628
629 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_low, true);
630 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_low, true);
631
632 tmp = (wm0_high.lb_request_fifo_depth - 1);
633 tmp |= (wm1_high.lb_request_fifo_depth - 1) << 16;
634 WREG32(R_006D58_LB_MAX_REQ_OUTSTANDING, tmp);
635
636 rs690_compute_mode_priority(rdev,
637 &wm0_high, &wm1_high,
638 mode0, mode1,
639 &d1mode_priority_a_cnt, &d2mode_priority_a_cnt);
640 rs690_compute_mode_priority(rdev,
641 &wm0_low, &wm1_low,
642 mode0, mode1,
643 &d1mode_priority_b_cnt, &d2mode_priority_b_cnt);
644
645 WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
646 WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_b_cnt);
647 WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
648 WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_b_cnt);
649 }
650
651 uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg)
652 {
653 unsigned long flags;
654 uint32_t r;
655
656 spin_lock_irqsave(&rdev->mc_idx_lock, flags);
657 WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg));
658 r = RREG32(R_00007C_MC_DATA);
659 WREG32(R_000078_MC_INDEX, ~C_000078_MC_IND_ADDR);
660 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
661 return r;
662 }
663
664 void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
665 {
666 unsigned long flags;
667
668 spin_lock_irqsave(&rdev->mc_idx_lock, flags);
669 WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg) |
670 S_000078_MC_IND_WR_EN(1));
671 WREG32(R_00007C_MC_DATA, v);
672 WREG32(R_000078_MC_INDEX, 0x7F);
673 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
674 }
675
676 static void rs690_mc_program(struct radeon_device *rdev)
677 {
678 struct rv515_mc_save save;
679
680 /* Stops all mc clients */
681 rv515_mc_stop(rdev, &save);
682
683 /* Wait for mc idle */
684 if (rs690_mc_wait_for_idle(rdev))
685 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
686 /* Program MC, should be a 32bits limited address space */
687 WREG32_MC(R_000100_MCCFG_FB_LOCATION,
688 S_000100_MC_FB_START(rdev->mc.vram_start >> 16) |
689 S_000100_MC_FB_TOP(rdev->mc.vram_end >> 16));
690 WREG32(R_000134_HDP_FB_LOCATION,
691 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
692
693 rv515_mc_resume(rdev, &save);
694 }
695
696 static int rs690_startup(struct radeon_device *rdev)
697 {
698 int r;
699
700 rs690_mc_program(rdev);
701 /* Resume clock */
702 rv515_clock_startup(rdev);
703 /* Initialize GPU configuration (# pipes, ...) */
704 rs690_gpu_init(rdev);
705 /* Initialize GART (initialize after TTM so we can allocate
706 * memory through TTM but finalize after TTM) */
707 r = rs400_gart_enable(rdev);
708 if (r)
709 return r;
710
711 /* allocate wb buffer */
712 r = radeon_wb_init(rdev);
713 if (r)
714 return r;
715
716 r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
717 if (r) {
718 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
719 return r;
720 }
721
722 /* Enable IRQ */
723 if (!rdev->irq.installed) {
724 r = radeon_irq_kms_init(rdev);
725 if (r)
726 return r;
727 }
728
729 rs600_irq_set(rdev);
730 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
731 /* 1M ring buffer */
732 r = r100_cp_init(rdev, 1024 * 1024);
733 if (r) {
734 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
735 return r;
736 }
737
738 r = radeon_ib_pool_init(rdev);
739 if (r) {
740 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
741 return r;
742 }
743
744 r = radeon_audio_init(rdev);
745 if (r) {
746 dev_err(rdev->dev, "failed initializing audio\n");
747 return r;
748 }
749
750 return 0;
751 }
752
753 int rs690_resume(struct radeon_device *rdev)
754 {
755 int r;
756
757 /* Make sur GART are not working */
758 rs400_gart_disable(rdev);
759 /* Resume clock before doing reset */
760 rv515_clock_startup(rdev);
761 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
762 if (radeon_asic_reset(rdev)) {
763 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
764 RREG32(R_000E40_RBBM_STATUS),
765 RREG32(R_0007C0_CP_STAT));
766 }
767 /* post */
768 atom_asic_init(rdev->mode_info.atom_context);
769 /* Resume clock after posting */
770 rv515_clock_startup(rdev);
771 /* Initialize surface registers */
772 radeon_surface_init(rdev);
773
774 rdev->accel_working = true;
775 r = rs690_startup(rdev);
776 if (r) {
777 rdev->accel_working = false;
778 }
779 return r;
780 }
781
782 int rs690_suspend(struct radeon_device *rdev)
783 {
784 radeon_pm_suspend(rdev);
785 radeon_audio_fini(rdev);
786 r100_cp_disable(rdev);
787 radeon_wb_disable(rdev);
788 rs600_irq_disable(rdev);
789 rs400_gart_disable(rdev);
790 return 0;
791 }
792
793 void rs690_fini(struct radeon_device *rdev)
794 {
795 radeon_pm_fini(rdev);
796 radeon_audio_fini(rdev);
797 r100_cp_fini(rdev);
798 radeon_wb_fini(rdev);
799 radeon_ib_pool_fini(rdev);
800 radeon_gem_fini(rdev);
801 rs400_gart_fini(rdev);
802 radeon_irq_kms_fini(rdev);
803 radeon_fence_driver_fini(rdev);
804 radeon_bo_fini(rdev);
805 radeon_atombios_fini(rdev);
806 kfree(rdev->bios);
807 rdev->bios = NULL;
808 }
809
810 int rs690_init(struct radeon_device *rdev)
811 {
812 int r;
813
814 /* Disable VGA */
815 rv515_vga_render_disable(rdev);
816 /* Initialize scratch registers */
817 radeon_scratch_init(rdev);
818 /* Initialize surface registers */
819 radeon_surface_init(rdev);
820 /* restore some register to sane defaults */
821 r100_restore_sanity(rdev);
822 /* TODO: disable VGA need to use VGA request */
823 /* BIOS*/
824 if (!radeon_get_bios(rdev)) {
825 if (ASIC_IS_AVIVO(rdev))
826 return -EINVAL;
827 }
828 if (rdev->is_atom_bios) {
829 r = radeon_atombios_init(rdev);
830 if (r)
831 return r;
832 } else {
833 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
834 return -EINVAL;
835 }
836 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
837 if (radeon_asic_reset(rdev)) {
838 dev_warn(rdev->dev,
839 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
840 RREG32(R_000E40_RBBM_STATUS),
841 RREG32(R_0007C0_CP_STAT));
842 }
843 /* check if cards are posted or not */
844 if (radeon_boot_test_post_card(rdev) == false)
845 return -EINVAL;
846
847 /* Initialize clocks */
848 radeon_get_clock_info(rdev->ddev);
849 /* initialize memory controller */
850 rs690_mc_init(rdev);
851 rv515_debugfs(rdev);
852 /* Fence driver */
853 r = radeon_fence_driver_init(rdev);
854 if (r)
855 return r;
856 /* Memory manager */
857 r = radeon_bo_init(rdev);
858 if (r)
859 return r;
860 r = rs400_gart_init(rdev);
861 if (r)
862 return r;
863 rs600_set_safe_registers(rdev);
864
865 /* Initialize power management */
866 radeon_pm_init(rdev);
867
868 rdev->accel_working = true;
869 r = rs690_startup(rdev);
870 if (r) {
871 /* Somethings want wront with the accel init stop accel */
872 dev_err(rdev->dev, "Disabling GPU acceleration\n");
873 r100_cp_fini(rdev);
874 radeon_wb_fini(rdev);
875 radeon_ib_pool_fini(rdev);
876 rs400_gart_fini(rdev);
877 radeon_irq_kms_fini(rdev);
878 rdev->accel_working = false;
879 }
880 return 0;
881 }
Linux with added FPC-III support