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