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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / drivers / gpu / drm / radeon / rs690.c
blob1bae33e43f3c0941c1bb5d080f6fb0325af87522
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 "radeon_audio.h"
32 #include "atom.h"
33 #include "rs690d.h"
34
35 int rs690_mc_wait_for_idle(struct radeon_device *rdev)
36 {
37 unsigned i;
38 uint32_t tmp;
39
40 for (i = 0; i < rdev->usec_timeout; i++) {
41 /* read MC_STATUS */
42 tmp = RREG32_MC(R_000090_MC_SYSTEM_STATUS);
43 if (G_000090_MC_SYSTEM_IDLE(tmp))
44 return 0;
45 udelay(1);
46 }
47 return -1;
48 }
49
50 static void rs690_gpu_init(struct radeon_device *rdev)
51 {
52 /* FIXME: is this correct ? */
53 r420_pipes_init(rdev);
54 if (rs690_mc_wait_for_idle(rdev)) {
55 pr_warn("Failed to wait MC idle while 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 /* Guess line buffer size to be 8192 pixels */
210 u32 lb_size = 8192;
211
212 /*
213 * Line Buffer Setup
214 * There is a single line buffer shared by both display controllers.
215 * R_006520_DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
216 * the display controllers. The paritioning can either be done
217 * manually or via one of four preset allocations specified in bits 1:0:
218 * 0 - line buffer is divided in half and shared between crtc
219 * 1 - D1 gets 3/4 of the line buffer, D2 gets 1/4
220 * 2 - D1 gets the whole buffer
221 * 3 - D1 gets 1/4 of the line buffer, D2 gets 3/4
222 * Setting bit 2 of R_006520_DC_LB_MEMORY_SPLIT controls switches to manual
223 * allocation mode. In manual allocation mode, D1 always starts at 0,
224 * D1 end/2 is specified in bits 14:4; D2 allocation follows D1.
225 */
226 tmp = RREG32(R_006520_DC_LB_MEMORY_SPLIT) & C_006520_DC_LB_MEMORY_SPLIT;
227 tmp &= ~C_006520_DC_LB_MEMORY_SPLIT_MODE;
228 /* auto */
229 if (mode1 && mode2) {
230 if (mode1->hdisplay > mode2->hdisplay) {
231 if (mode1->hdisplay > 2560)
232 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q;
233 else
234 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
235 } else if (mode2->hdisplay > mode1->hdisplay) {
236 if (mode2->hdisplay > 2560)
237 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
238 else
239 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
240 } else
241 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
242 } else if (mode1) {
243 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_ONLY;
244 } else if (mode2) {
245 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
246 }
247 WREG32(R_006520_DC_LB_MEMORY_SPLIT, tmp);
248
249 /* Save number of lines the linebuffer leads before the scanout */
250 if (mode1)
251 rdev->mode_info.crtcs[0]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode1->crtc_hdisplay);
252
253 if (mode2)
254 rdev->mode_info.crtcs[1]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode2->crtc_hdisplay);
255 }
256
257 struct rs690_watermark {
258 u32 lb_request_fifo_depth;
259 fixed20_12 num_line_pair;
260 fixed20_12 estimated_width;
261 fixed20_12 worst_case_latency;
262 fixed20_12 consumption_rate;
263 fixed20_12 active_time;
264 fixed20_12 dbpp;
265 fixed20_12 priority_mark_max;
266 fixed20_12 priority_mark;
267 fixed20_12 sclk;
268 };
269
270 static void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
271 struct radeon_crtc *crtc,
272 struct rs690_watermark *wm,
273 bool low)
274 {
275 struct drm_display_mode *mode = &crtc->base.mode;
276 fixed20_12 a, b, c;
277 fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
278 fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
279 fixed20_12 sclk, core_bandwidth, max_bandwidth;
280 u32 selected_sclk;
281
282 if (!crtc->base.enabled) {
283 /* FIXME: wouldn't it better to set priority mark to maximum */
284 wm->lb_request_fifo_depth = 4;
285 return;
286 }
287
288 if (((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880)) &&
289 (rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
290 selected_sclk = radeon_dpm_get_sclk(rdev, low);
291 else
292 selected_sclk = rdev->pm.current_sclk;
293
294 /* sclk in Mhz */
295 a.full = dfixed_const(100);
296 sclk.full = dfixed_const(selected_sclk);
297 sclk.full = dfixed_div(sclk, a);
298
299 /* core_bandwidth = sclk(Mhz) * 16 */
300 a.full = dfixed_const(16);
301 core_bandwidth.full = dfixed_div(rdev->pm.sclk, a);
302
303 if (crtc->vsc.full > dfixed_const(2))
304 wm->num_line_pair.full = dfixed_const(2);
305 else
306 wm->num_line_pair.full = dfixed_const(1);
307
308 b.full = dfixed_const(mode->crtc_hdisplay);
309 c.full = dfixed_const(256);
310 a.full = dfixed_div(b, c);
311 request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair);
312 request_fifo_depth.full = dfixed_ceil(request_fifo_depth);
313 if (a.full < dfixed_const(4)) {
314 wm->lb_request_fifo_depth = 4;
315 } else {
316 wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth);
317 }
318
319 /* Determine consumption rate
320 * pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
321 * vtaps = number of vertical taps,
322 * vsc = vertical scaling ratio, defined as source/destination
323 * hsc = horizontal scaling ration, defined as source/destination
324 */
325 a.full = dfixed_const(mode->clock);
326 b.full = dfixed_const(1000);
327 a.full = dfixed_div(a, b);
328 pclk.full = dfixed_div(b, a);
329 if (crtc->rmx_type != RMX_OFF) {
330 b.full = dfixed_const(2);
331 if (crtc->vsc.full > b.full)
332 b.full = crtc->vsc.full;
333 b.full = dfixed_mul(b, crtc->hsc);
334 c.full = dfixed_const(2);
335 b.full = dfixed_div(b, c);
336 consumption_time.full = dfixed_div(pclk, b);
337 } else {
338 consumption_time.full = pclk.full;
339 }
340 a.full = dfixed_const(1);
341 wm->consumption_rate.full = dfixed_div(a, consumption_time);
342
343
344 /* Determine line time
345 * LineTime = total time for one line of displayhtotal
346 * LineTime = total number of horizontal pixels
347 * pclk = pixel clock period(ns)
348 */
349 a.full = dfixed_const(crtc->base.mode.crtc_htotal);
350 line_time.full = dfixed_mul(a, pclk);
351
352 /* Determine active time
353 * ActiveTime = time of active region of display within one line,
354 * hactive = total number of horizontal active pixels
355 * htotal = total number of horizontal pixels
356 */
357 a.full = dfixed_const(crtc->base.mode.crtc_htotal);
358 b.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
359 wm->active_time.full = dfixed_mul(line_time, b);
360 wm->active_time.full = dfixed_div(wm->active_time, a);
361
362 /* Maximun bandwidth is the minimun bandwidth of all component */
363 max_bandwidth = core_bandwidth;
364 if (rdev->mc.igp_sideport_enabled) {
365 if (max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
366 rdev->pm.sideport_bandwidth.full)
367 max_bandwidth = rdev->pm.sideport_bandwidth;
368 read_delay_latency.full = dfixed_const(370 * 800);
369 a.full = dfixed_const(1000);
370 b.full = dfixed_div(rdev->pm.igp_sideport_mclk, a);
371 read_delay_latency.full = dfixed_div(read_delay_latency, b);
372 read_delay_latency.full = dfixed_mul(read_delay_latency, a);
373 } else {
374 if (max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
375 rdev->pm.k8_bandwidth.full)
376 max_bandwidth = rdev->pm.k8_bandwidth;
377 if (max_bandwidth.full > rdev->pm.ht_bandwidth.full &&
378 rdev->pm.ht_bandwidth.full)
379 max_bandwidth = rdev->pm.ht_bandwidth;
380 read_delay_latency.full = dfixed_const(5000);
381 }
382
383 /* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */
384 a.full = dfixed_const(16);
385 sclk.full = dfixed_mul(max_bandwidth, a);
386 a.full = dfixed_const(1000);
387 sclk.full = dfixed_div(a, sclk);
388 /* Determine chunk time
389 * ChunkTime = the time it takes the DCP to send one chunk of data
390 * to the LB which consists of pipeline delay and inter chunk gap
391 * sclk = system clock(ns)
392 */
393 a.full = dfixed_const(256 * 13);
394 chunk_time.full = dfixed_mul(sclk, a);
395 a.full = dfixed_const(10);
396 chunk_time.full = dfixed_div(chunk_time, a);
397
398 /* Determine the worst case latency
399 * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
400 * WorstCaseLatency = worst case time from urgent to when the MC starts
401 * to return data
402 * READ_DELAY_IDLE_MAX = constant of 1us
403 * ChunkTime = time it takes the DCP to send one chunk of data to the LB
404 * which consists of pipeline delay and inter chunk gap
405 */
406 if (dfixed_trunc(wm->num_line_pair) > 1) {
407 a.full = dfixed_const(3);
408 wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
409 wm->worst_case_latency.full += read_delay_latency.full;
410 } else {
411 a.full = dfixed_const(2);
412 wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
413 wm->worst_case_latency.full += read_delay_latency.full;
414 }
415
416 /* Determine the tolerable latency
417 * TolerableLatency = Any given request has only 1 line time
418 * for the data to be returned
419 * LBRequestFifoDepth = Number of chunk requests the LB can
420 * put into the request FIFO for a display
421 * LineTime = total time for one line of display
422 * ChunkTime = the time it takes the DCP to send one chunk
423 * of data to the LB which consists of
424 * pipeline delay and inter chunk gap
425 */
426 if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) {
427 tolerable_latency.full = line_time.full;
428 } else {
429 tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2);
430 tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
431 tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time);
432 tolerable_latency.full = line_time.full - tolerable_latency.full;
433 }
434 /* We assume worst case 32bits (4 bytes) */
435 wm->dbpp.full = dfixed_const(4 * 8);
436
437 /* Determine the maximum priority mark
438 * width = viewport width in pixels
439 */
440 a.full = dfixed_const(16);
441 wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
442 wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a);
443 wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max);
444
445 /* Determine estimated width */
446 estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
447 estimated_width.full = dfixed_div(estimated_width, consumption_time);
448 if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
449 wm->priority_mark.full = dfixed_const(10);
450 } else {
451 a.full = dfixed_const(16);
452 wm->priority_mark.full = dfixed_div(estimated_width, a);
453 wm->priority_mark.full = dfixed_ceil(wm->priority_mark);
454 wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
455 }
456 }
457
458 static void rs690_compute_mode_priority(struct radeon_device *rdev,
459 struct rs690_watermark *wm0,
460 struct rs690_watermark *wm1,
461 struct drm_display_mode *mode0,
462 struct drm_display_mode *mode1,
463 u32 *d1mode_priority_a_cnt,
464 u32 *d2mode_priority_a_cnt)
465 {
466 fixed20_12 priority_mark02, priority_mark12, fill_rate;
467 fixed20_12 a, b;
468
469 *d1mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1);
470 *d2mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1);
471
472 if (mode0 && mode1) {
473 if (dfixed_trunc(wm0->dbpp) > 64)
474 a.full = dfixed_mul(wm0->dbpp, wm0->num_line_pair);
475 else
476 a.full = wm0->num_line_pair.full;
477 if (dfixed_trunc(wm1->dbpp) > 64)
478 b.full = dfixed_mul(wm1->dbpp, wm1->num_line_pair);
479 else
480 b.full = wm1->num_line_pair.full;
481 a.full += b.full;
482 fill_rate.full = dfixed_div(wm0->sclk, a);
483 if (wm0->consumption_rate.full > fill_rate.full) {
484 b.full = wm0->consumption_rate.full - fill_rate.full;
485 b.full = dfixed_mul(b, wm0->active_time);
486 a.full = dfixed_mul(wm0->worst_case_latency,
487 wm0->consumption_rate);
488 a.full = a.full + b.full;
489 b.full = dfixed_const(16 * 1000);
490 priority_mark02.full = dfixed_div(a, b);
491 } else {
492 a.full = dfixed_mul(wm0->worst_case_latency,
493 wm0->consumption_rate);
494 b.full = dfixed_const(16 * 1000);
495 priority_mark02.full = dfixed_div(a, b);
496 }
497 if (wm1->consumption_rate.full > fill_rate.full) {
498 b.full = wm1->consumption_rate.full - fill_rate.full;
499 b.full = dfixed_mul(b, wm1->active_time);
500 a.full = dfixed_mul(wm1->worst_case_latency,
501 wm1->consumption_rate);
502 a.full = a.full + b.full;
503 b.full = dfixed_const(16 * 1000);
504 priority_mark12.full = dfixed_div(a, b);
505 } else {
506 a.full = dfixed_mul(wm1->worst_case_latency,
507 wm1->consumption_rate);
508 b.full = dfixed_const(16 * 1000);
509 priority_mark12.full = dfixed_div(a, b);
510 }
511 if (wm0->priority_mark.full > priority_mark02.full)
512 priority_mark02.full = wm0->priority_mark.full;
513 if (wm0->priority_mark_max.full > priority_mark02.full)
514 priority_mark02.full = wm0->priority_mark_max.full;
515 if (wm1->priority_mark.full > priority_mark12.full)
516 priority_mark12.full = wm1->priority_mark.full;
517 if (wm1->priority_mark_max.full > priority_mark12.full)
518 priority_mark12.full = wm1->priority_mark_max.full;
519 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
520 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
521 if (rdev->disp_priority == 2) {
522 *d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
523 *d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
524 }
525 } else if (mode0) {
526 if (dfixed_trunc(wm0->dbpp) > 64)
527 a.full = dfixed_mul(wm0->dbpp, wm0->num_line_pair);
528 else
529 a.full = wm0->num_line_pair.full;
530 fill_rate.full = dfixed_div(wm0->sclk, a);
531 if (wm0->consumption_rate.full > fill_rate.full) {
532 b.full = wm0->consumption_rate.full - fill_rate.full;
533 b.full = dfixed_mul(b, wm0->active_time);
534 a.full = dfixed_mul(wm0->worst_case_latency,
535 wm0->consumption_rate);
536 a.full = a.full + b.full;
537 b.full = dfixed_const(16 * 1000);
538 priority_mark02.full = dfixed_div(a, b);
539 } else {
540 a.full = dfixed_mul(wm0->worst_case_latency,
541 wm0->consumption_rate);
542 b.full = dfixed_const(16 * 1000);
543 priority_mark02.full = dfixed_div(a, b);
544 }
545 if (wm0->priority_mark.full > priority_mark02.full)
546 priority_mark02.full = wm0->priority_mark.full;
547 if (wm0->priority_mark_max.full > priority_mark02.full)
548 priority_mark02.full = wm0->priority_mark_max.full;
549 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
550 if (rdev->disp_priority == 2)
551 *d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
552 } else if (mode1) {
553 if (dfixed_trunc(wm1->dbpp) > 64)
554 a.full = dfixed_mul(wm1->dbpp, wm1->num_line_pair);
555 else
556 a.full = wm1->num_line_pair.full;
557 fill_rate.full = dfixed_div(wm1->sclk, a);
558 if (wm1->consumption_rate.full > fill_rate.full) {
559 b.full = wm1->consumption_rate.full - fill_rate.full;
560 b.full = dfixed_mul(b, wm1->active_time);
561 a.full = dfixed_mul(wm1->worst_case_latency,
562 wm1->consumption_rate);
563 a.full = a.full + b.full;
564 b.full = dfixed_const(16 * 1000);
565 priority_mark12.full = dfixed_div(a, b);
566 } else {
567 a.full = dfixed_mul(wm1->worst_case_latency,
568 wm1->consumption_rate);
569 b.full = dfixed_const(16 * 1000);
570 priority_mark12.full = dfixed_div(a, b);
571 }
572 if (wm1->priority_mark.full > priority_mark12.full)
573 priority_mark12.full = wm1->priority_mark.full;
574 if (wm1->priority_mark_max.full > priority_mark12.full)
575 priority_mark12.full = wm1->priority_mark_max.full;
576 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
577 if (rdev->disp_priority == 2)
578 *d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
579 }
580 }
581
582 void rs690_bandwidth_update(struct radeon_device *rdev)
583 {
584 struct drm_display_mode *mode0 = NULL;
585 struct drm_display_mode *mode1 = NULL;
586 struct rs690_watermark wm0_high, wm0_low;
587 struct rs690_watermark wm1_high, wm1_low;
588 u32 tmp;
589 u32 d1mode_priority_a_cnt, d1mode_priority_b_cnt;
590 u32 d2mode_priority_a_cnt, d2mode_priority_b_cnt;
591
592 if (!rdev->mode_info.mode_config_initialized)
593 return;
594
595 radeon_update_display_priority(rdev);
596
597 if (rdev->mode_info.crtcs[0]->base.enabled)
598 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
599 if (rdev->mode_info.crtcs[1]->base.enabled)
600 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
601 /*
602 * Set display0/1 priority up in the memory controller for
603 * modes if the user specifies HIGH for displaypriority
604 * option.
605 */
606 if ((rdev->disp_priority == 2) &&
607 ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))) {
608 tmp = RREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER);
609 tmp &= C_000104_MC_DISP0R_INIT_LAT;
610 tmp &= C_000104_MC_DISP1R_INIT_LAT;
611 if (mode0)
612 tmp |= S_000104_MC_DISP0R_INIT_LAT(1);
613 if (mode1)
614 tmp |= S_000104_MC_DISP1R_INIT_LAT(1);
615 WREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER, tmp);
616 }
617 rs690_line_buffer_adjust(rdev, mode0, mode1);
618
619 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))
620 WREG32(R_006C9C_DCP_CONTROL, 0);
621 if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
622 WREG32(R_006C9C_DCP_CONTROL, 2);
623
624 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_high, false);
625 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_high, false);
626
627 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_low, true);
628 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_low, true);
629
630 tmp = (wm0_high.lb_request_fifo_depth - 1);
631 tmp |= (wm1_high.lb_request_fifo_depth - 1) << 16;
632 WREG32(R_006D58_LB_MAX_REQ_OUTSTANDING, tmp);
633
634 rs690_compute_mode_priority(rdev,
635 &wm0_high, &wm1_high,
636 mode0, mode1,
637 &d1mode_priority_a_cnt, &d2mode_priority_a_cnt);
638 rs690_compute_mode_priority(rdev,
639 &wm0_low, &wm1_low,
640 mode0, mode1,
641 &d1mode_priority_b_cnt, &d2mode_priority_b_cnt);
642
643 WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
644 WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_b_cnt);
645 WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
646 WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_b_cnt);
647 }
648
649 uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg)
650 {
651 unsigned long flags;
652 uint32_t r;
653
654 spin_lock_irqsave(&rdev->mc_idx_lock, flags);
655 WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg));
656 r = RREG32(R_00007C_MC_DATA);
657 WREG32(R_000078_MC_INDEX, ~C_000078_MC_IND_ADDR);
658 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
659 return r;
660 }
661
662 void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
663 {
664 unsigned long flags;
665
666 spin_lock_irqsave(&rdev->mc_idx_lock, flags);
667 WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg) |
668 S_000078_MC_IND_WR_EN(1));
669 WREG32(R_00007C_MC_DATA, v);
670 WREG32(R_000078_MC_INDEX, 0x7F);
671 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
672 }
673
674 static void rs690_mc_program(struct radeon_device *rdev)
675 {
676 struct rv515_mc_save save;
677
678 /* Stops all mc clients */
679 rv515_mc_stop(rdev, &save);
680
681 /* Wait for mc idle */
682 if (rs690_mc_wait_for_idle(rdev))
683 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
684 /* Program MC, should be a 32bits limited address space */
685 WREG32_MC(R_000100_MCCFG_FB_LOCATION,
686 S_000100_MC_FB_START(rdev->mc.vram_start >> 16) |
687 S_000100_MC_FB_TOP(rdev->mc.vram_end >> 16));
688 WREG32(R_000134_HDP_FB_LOCATION,
689 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
690
691 rv515_mc_resume(rdev, &save);
692 }
693
694 static int rs690_startup(struct radeon_device *rdev)
695 {
696 int r;
697
698 rs690_mc_program(rdev);
699 /* Resume clock */
700 rv515_clock_startup(rdev);
701 /* Initialize GPU configuration (# pipes, ...) */
702 rs690_gpu_init(rdev);
703 /* Initialize GART (initialize after TTM so we can allocate
704 * memory through TTM but finalize after TTM) */
705 r = rs400_gart_enable(rdev);
706 if (r)
707 return r;
708
709 /* allocate wb buffer */
710 r = radeon_wb_init(rdev);
711 if (r)
712 return r;
713
714 r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
715 if (r) {
716 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
717 return r;
718 }
719
720 /* Enable IRQ */
721 if (!rdev->irq.installed) {
722 r = radeon_irq_kms_init(rdev);
723 if (r)
724 return r;
725 }
726
727 rs600_irq_set(rdev);
728 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
729 /* 1M ring buffer */
730 r = r100_cp_init(rdev, 1024 * 1024);
731 if (r) {
732 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
733 return r;
734 }
735
736 r = radeon_ib_pool_init(rdev);
737 if (r) {
738 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
739 return r;
740 }
741
742 r = radeon_audio_init(rdev);
743 if (r) {
744 dev_err(rdev->dev, "failed initializing audio\n");
745 return r;
746 }
747
748 return 0;
749 }
750
751 int rs690_resume(struct radeon_device *rdev)
752 {
753 int r;
754
755 /* Make sur GART are not working */
756 rs400_gart_disable(rdev);
757 /* Resume clock before doing reset */
758 rv515_clock_startup(rdev);
759 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
760 if (radeon_asic_reset(rdev)) {
761 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
762 RREG32(R_000E40_RBBM_STATUS),
763 RREG32(R_0007C0_CP_STAT));
764 }
765 /* post */
766 atom_asic_init(rdev->mode_info.atom_context);
767 /* Resume clock after posting */
768 rv515_clock_startup(rdev);
769 /* Initialize surface registers */
770 radeon_surface_init(rdev);
771
772 rdev->accel_working = true;
773 r = rs690_startup(rdev);
774 if (r) {
775 rdev->accel_working = false;
776 }
777 return r;
778 }
779
780 int rs690_suspend(struct radeon_device *rdev)
781 {
782 radeon_pm_suspend(rdev);
783 radeon_audio_fini(rdev);
784 r100_cp_disable(rdev);
785 radeon_wb_disable(rdev);
786 rs600_irq_disable(rdev);
787 rs400_gart_disable(rdev);
788 return 0;
789 }
790
791 void rs690_fini(struct radeon_device *rdev)
792 {
793 radeon_pm_fini(rdev);
794 radeon_audio_fini(rdev);
795 r100_cp_fini(rdev);
796 radeon_wb_fini(rdev);
797 radeon_ib_pool_fini(rdev);
798 radeon_gem_fini(rdev);
799 rs400_gart_fini(rdev);
800 radeon_irq_kms_fini(rdev);
801 radeon_fence_driver_fini(rdev);
802 radeon_bo_fini(rdev);
803 radeon_atombios_fini(rdev);
804 kfree(rdev->bios);
805 rdev->bios = NULL;
806 }
807
808 int rs690_init(struct radeon_device *rdev)
809 {
810 int r;
811
812 /* Disable VGA */
813 rv515_vga_render_disable(rdev);
814 /* Initialize scratch registers */
815 radeon_scratch_init(rdev);
816 /* Initialize surface registers */
817 radeon_surface_init(rdev);
818 /* restore some register to sane defaults */
819 r100_restore_sanity(rdev);
820 /* TODO: disable VGA need to use VGA request */
821 /* BIOS*/
822 if (!radeon_get_bios(rdev)) {
823 if (ASIC_IS_AVIVO(rdev))
824 return -EINVAL;
825 }
826 if (rdev->is_atom_bios) {
827 r = radeon_atombios_init(rdev);
828 if (r)
829 return r;
830 } else {
831 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
832 return -EINVAL;
833 }
834 /* Reset gpu before posting otherwise ATOM will enter infinite loop */
835 if (radeon_asic_reset(rdev)) {
836 dev_warn(rdev->dev,
837 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
838 RREG32(R_000E40_RBBM_STATUS),
839 RREG32(R_0007C0_CP_STAT));
840 }
841 /* check if cards are posted or not */
842 if (radeon_boot_test_post_card(rdev) == false)
843 return -EINVAL;
844
845 /* Initialize clocks */
846 radeon_get_clock_info(rdev->ddev);
847 /* initialize memory controller */
848 rs690_mc_init(rdev);
849 rv515_debugfs(rdev);
850 /* Fence driver */
851 r = radeon_fence_driver_init(rdev);
852 if (r)
853 return r;
854 /* Memory manager */
855 r = radeon_bo_init(rdev);
856 if (r)
857 return r;
858 r = rs400_gart_init(rdev);
859 if (r)
860 return r;
861 rs600_set_safe_registers(rdev);
862
863 /* Initialize power management */
864 radeon_pm_init(rdev);
865
866 rdev->accel_working = true;
867 r = rs690_startup(rdev);
868 if (r) {
869 /* Somethings want wront with the accel init stop accel */
870 dev_err(rdev->dev, "Disabling GPU acceleration\n");
871 r100_cp_fini(rdev);
872 radeon_wb_fini(rdev);
873 radeon_ib_pool_fini(rdev);
874 rs400_gart_fini(rdev);
875 radeon_irq_kms_fini(rdev);
876 rdev->accel_working = false;
877 }
878 return 0;
879 }
CRIS linux kernel tree