xref: /dragonfly/sys/dev/drm/radeon/rv515.c (revision 532828a0)
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  * $FreeBSD: head/sys/dev/drm2/radeon/rv515.c 254885 2013-08-25 19:37:15Z dumbbell $
29  */
30 
31 #include <drm/drmP.h>
32 #include "rv515d.h"
33 #include "radeon.h"
34 #include "radeon_asic.h"
35 #include "atom.h"
36 #include "rv515_reg_safe.h"
37 
38 /* This files gather functions specifics to: rv515 */
39 static int rv515_debugfs_pipes_info_init(struct radeon_device *rdev);
40 static int rv515_debugfs_ga_info_init(struct radeon_device *rdev);
41 static void rv515_gpu_init(struct radeon_device *rdev);
42 
43 static const u32 crtc_offsets[2] =
44 {
45 	0,
46 	AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
47 };
48 
49 void rv515_debugfs(struct radeon_device *rdev)
50 {
51 	if (r100_debugfs_rbbm_init(rdev)) {
52 		DRM_ERROR("Failed to register debugfs file for RBBM !\n");
53 	}
54 	if (rv515_debugfs_pipes_info_init(rdev)) {
55 		DRM_ERROR("Failed to register debugfs file for pipes !\n");
56 	}
57 	if (rv515_debugfs_ga_info_init(rdev)) {
58 		DRM_ERROR("Failed to register debugfs file for pipes !\n");
59 	}
60 }
61 
62 void rv515_ring_start(struct radeon_device *rdev, struct radeon_ring *ring)
63 {
64 	int r;
65 
66 	r = radeon_ring_lock(rdev, ring, 64);
67 	if (r) {
68 		return;
69 	}
70 	radeon_ring_write(ring, PACKET0(ISYNC_CNTL, 0));
71 	radeon_ring_write(ring,
72 			  ISYNC_ANY2D_IDLE3D |
73 			  ISYNC_ANY3D_IDLE2D |
74 			  ISYNC_WAIT_IDLEGUI |
75 			  ISYNC_CPSCRATCH_IDLEGUI);
76 	radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0));
77 	radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
78 	radeon_ring_write(ring, PACKET0(R300_DST_PIPE_CONFIG, 0));
79 	radeon_ring_write(ring, R300_PIPE_AUTO_CONFIG);
80 	radeon_ring_write(ring, PACKET0(GB_SELECT, 0));
81 	radeon_ring_write(ring, 0);
82 	radeon_ring_write(ring, PACKET0(GB_ENABLE, 0));
83 	radeon_ring_write(ring, 0);
84 	radeon_ring_write(ring, PACKET0(R500_SU_REG_DEST, 0));
85 	radeon_ring_write(ring, (1 << rdev->num_gb_pipes) - 1);
86 	radeon_ring_write(ring, PACKET0(VAP_INDEX_OFFSET, 0));
87 	radeon_ring_write(ring, 0);
88 	radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
89 	radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE);
90 	radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
91 	radeon_ring_write(ring, ZC_FLUSH | ZC_FREE);
92 	radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0));
93 	radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
94 	radeon_ring_write(ring, PACKET0(GB_AA_CONFIG, 0));
95 	radeon_ring_write(ring, 0);
96 	radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
97 	radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE);
98 	radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
99 	radeon_ring_write(ring, ZC_FLUSH | ZC_FREE);
100 	radeon_ring_write(ring, PACKET0(GB_MSPOS0, 0));
101 	radeon_ring_write(ring,
102 			  ((6 << MS_X0_SHIFT) |
103 			   (6 << MS_Y0_SHIFT) |
104 			   (6 << MS_X1_SHIFT) |
105 			   (6 << MS_Y1_SHIFT) |
106 			   (6 << MS_X2_SHIFT) |
107 			   (6 << MS_Y2_SHIFT) |
108 			   (6 << MSBD0_Y_SHIFT) |
109 			   (6 << MSBD0_X_SHIFT)));
110 	radeon_ring_write(ring, PACKET0(GB_MSPOS1, 0));
111 	radeon_ring_write(ring,
112 			  ((6 << MS_X3_SHIFT) |
113 			   (6 << MS_Y3_SHIFT) |
114 			   (6 << MS_X4_SHIFT) |
115 			   (6 << MS_Y4_SHIFT) |
116 			   (6 << MS_X5_SHIFT) |
117 			   (6 << MS_Y5_SHIFT) |
118 			   (6 << MSBD1_SHIFT)));
119 	radeon_ring_write(ring, PACKET0(GA_ENHANCE, 0));
120 	radeon_ring_write(ring, GA_DEADLOCK_CNTL | GA_FASTSYNC_CNTL);
121 	radeon_ring_write(ring, PACKET0(GA_POLY_MODE, 0));
122 	radeon_ring_write(ring, FRONT_PTYPE_TRIANGE | BACK_PTYPE_TRIANGE);
123 	radeon_ring_write(ring, PACKET0(GA_ROUND_MODE, 0));
124 	radeon_ring_write(ring, GEOMETRY_ROUND_NEAREST | COLOR_ROUND_NEAREST);
125 	radeon_ring_write(ring, PACKET0(0x20C8, 0));
126 	radeon_ring_write(ring, 0);
127 	radeon_ring_unlock_commit(rdev, ring);
128 }
129 
130 int rv515_mc_wait_for_idle(struct radeon_device *rdev)
131 {
132 	unsigned i;
133 	uint32_t tmp;
134 
135 	for (i = 0; i < rdev->usec_timeout; i++) {
136 		/* read MC_STATUS */
137 		tmp = RREG32_MC(MC_STATUS);
138 		if (tmp & MC_STATUS_IDLE) {
139 			return 0;
140 		}
141 		DRM_UDELAY(1);
142 	}
143 	return -1;
144 }
145 
146 void rv515_vga_render_disable(struct radeon_device *rdev)
147 {
148 	WREG32(R_000300_VGA_RENDER_CONTROL,
149 		RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL);
150 }
151 
152 static void rv515_gpu_init(struct radeon_device *rdev)
153 {
154 	unsigned pipe_select_current, gb_pipe_select, tmp;
155 
156 	if (r100_gui_wait_for_idle(rdev)) {
157 		DRM_ERROR("Failed to wait GUI idle while "
158 		       "resetting GPU. Bad things might happen.\n");
159 	}
160 	rv515_vga_render_disable(rdev);
161 	r420_pipes_init(rdev);
162 	gb_pipe_select = RREG32(R400_GB_PIPE_SELECT);
163 	tmp = RREG32(R300_DST_PIPE_CONFIG);
164 	pipe_select_current = (tmp >> 2) & 3;
165 	tmp = (1 << pipe_select_current) |
166 	      (((gb_pipe_select >> 8) & 0xF) << 4);
167 	WREG32_PLL(0x000D, tmp);
168 	if (r100_gui_wait_for_idle(rdev)) {
169 		DRM_ERROR("Failed to wait GUI idle while "
170 		       "resetting GPU. Bad things might happen.\n");
171 	}
172 	if (rv515_mc_wait_for_idle(rdev)) {
173 		DRM_ERROR("Failed to wait MC idle while "
174 		       "programming pipes. Bad things might happen.\n");
175 	}
176 }
177 
178 static void rv515_vram_get_type(struct radeon_device *rdev)
179 {
180 	uint32_t tmp;
181 
182 	rdev->mc.vram_width = 128;
183 	rdev->mc.vram_is_ddr = true;
184 	tmp = RREG32_MC(RV515_MC_CNTL) & MEM_NUM_CHANNELS_MASK;
185 	switch (tmp) {
186 	case 0:
187 		rdev->mc.vram_width = 64;
188 		break;
189 	case 1:
190 		rdev->mc.vram_width = 128;
191 		break;
192 	default:
193 		rdev->mc.vram_width = 128;
194 		break;
195 	}
196 }
197 
198 static void rv515_mc_init(struct radeon_device *rdev)
199 {
200 
201 	rv515_vram_get_type(rdev);
202 	r100_vram_init_sizes(rdev);
203 	radeon_vram_location(rdev, &rdev->mc, 0);
204 	rdev->mc.gtt_base_align = 0;
205 	if (!(rdev->flags & RADEON_IS_AGP))
206 		radeon_gtt_location(rdev, &rdev->mc);
207 	radeon_update_bandwidth_info(rdev);
208 }
209 
210 uint32_t rv515_mc_rreg(struct radeon_device *rdev, uint32_t reg)
211 {
212 	uint32_t r;
213 
214 	WREG32(MC_IND_INDEX, 0x7f0000 | (reg & 0xffff));
215 	r = RREG32(MC_IND_DATA);
216 	WREG32(MC_IND_INDEX, 0);
217 	return r;
218 }
219 
220 void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
221 {
222 	WREG32(MC_IND_INDEX, 0xff0000 | ((reg) & 0xffff));
223 	WREG32(MC_IND_DATA, (v));
224 	WREG32(MC_IND_INDEX, 0);
225 }
226 
227 #if defined(CONFIG_DEBUG_FS)
228 static int rv515_debugfs_pipes_info(struct seq_file *m, void *data)
229 {
230 	struct drm_info_node *node = (struct drm_info_node *) m->private;
231 	struct drm_device *dev = node->minor->dev;
232 	struct radeon_device *rdev = dev->dev_private;
233 	uint32_t tmp;
234 
235 	tmp = RREG32(GB_PIPE_SELECT);
236 	seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp);
237 	tmp = RREG32(SU_REG_DEST);
238 	seq_printf(m, "SU_REG_DEST 0x%08x\n", tmp);
239 	tmp = RREG32(GB_TILE_CONFIG);
240 	seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp);
241 	tmp = RREG32(DST_PIPE_CONFIG);
242 	seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp);
243 	return 0;
244 }
245 
246 static int rv515_debugfs_ga_info(struct seq_file *m, void *data)
247 {
248 	struct drm_info_node *node = (struct drm_info_node *) m->private;
249 	struct drm_device *dev = node->minor->dev;
250 	struct radeon_device *rdev = dev->dev_private;
251 	uint32_t tmp;
252 
253 	tmp = RREG32(0x2140);
254 	seq_printf(m, "VAP_CNTL_STATUS 0x%08x\n", tmp);
255 	radeon_asic_reset(rdev);
256 	tmp = RREG32(0x425C);
257 	seq_printf(m, "GA_IDLE 0x%08x\n", tmp);
258 	return 0;
259 }
260 
261 static struct drm_info_list rv515_pipes_info_list[] = {
262 	{"rv515_pipes_info", rv515_debugfs_pipes_info, 0, NULL},
263 };
264 
265 static struct drm_info_list rv515_ga_info_list[] = {
266 	{"rv515_ga_info", rv515_debugfs_ga_info, 0, NULL},
267 };
268 #endif
269 
270 static int rv515_debugfs_pipes_info_init(struct radeon_device *rdev)
271 {
272 #if defined(CONFIG_DEBUG_FS)
273 	return radeon_debugfs_add_files(rdev, rv515_pipes_info_list, 1);
274 #else
275 	return 0;
276 #endif
277 }
278 
279 static int rv515_debugfs_ga_info_init(struct radeon_device *rdev)
280 {
281 #if defined(CONFIG_DEBUG_FS)
282 	return radeon_debugfs_add_files(rdev, rv515_ga_info_list, 1);
283 #else
284 	return 0;
285 #endif
286 }
287 
288 void rv515_mc_stop(struct radeon_device *rdev, struct rv515_mc_save *save)
289 {
290 	u32 crtc_enabled, tmp, frame_count, blackout;
291 	int i, j;
292 
293 	save->vga_render_control = RREG32(R_000300_VGA_RENDER_CONTROL);
294 	save->vga_hdp_control = RREG32(R_000328_VGA_HDP_CONTROL);
295 
296 	/* disable VGA render */
297 	WREG32(R_000300_VGA_RENDER_CONTROL, 0);
298 	/* blank the display controllers */
299 	for (i = 0; i < rdev->num_crtc; i++) {
300 		crtc_enabled = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]) & AVIVO_CRTC_EN;
301 		if (crtc_enabled) {
302 			save->crtc_enabled[i] = true;
303 			tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]);
304 			if (!(tmp & AVIVO_CRTC_DISP_READ_REQUEST_DISABLE)) {
305 				radeon_wait_for_vblank(rdev, i);
306 				tmp |= AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
307 				WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp);
308 			}
309 			/* wait for the next frame */
310 			frame_count = radeon_get_vblank_counter(rdev, i);
311 			for (j = 0; j < rdev->usec_timeout; j++) {
312 				if (radeon_get_vblank_counter(rdev, i) != frame_count)
313 					break;
314 				DRM_UDELAY(1);
315 			}
316 		} else {
317 			save->crtc_enabled[i] = false;
318 		}
319 	}
320 
321 	radeon_mc_wait_for_idle(rdev);
322 
323 	if (rdev->family >= CHIP_R600) {
324 		if (rdev->family >= CHIP_RV770)
325 			blackout = RREG32(R700_MC_CITF_CNTL);
326 		else
327 			blackout = RREG32(R600_CITF_CNTL);
328 		if ((blackout & R600_BLACKOUT_MASK) != R600_BLACKOUT_MASK) {
329 			/* Block CPU access */
330 			WREG32(R600_BIF_FB_EN, 0);
331 			/* blackout the MC */
332 			blackout |= R600_BLACKOUT_MASK;
333 			if (rdev->family >= CHIP_RV770)
334 				WREG32(R700_MC_CITF_CNTL, blackout);
335 			else
336 				WREG32(R600_CITF_CNTL, blackout);
337 		}
338 	}
339 	/* wait for the MC to settle */
340 	DRM_UDELAY(100);
341 }
342 
343 void rv515_mc_resume(struct radeon_device *rdev, struct rv515_mc_save *save)
344 {
345 	u32 tmp, frame_count;
346 	int i, j;
347 
348 	/* update crtc base addresses */
349 	for (i = 0; i < rdev->num_crtc; i++) {
350 		if (rdev->family >= CHIP_RV770) {
351 			if (i == 1) {
352 				WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH,
353 				       upper_32_bits(rdev->mc.vram_start));
354 				WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH,
355 				       upper_32_bits(rdev->mc.vram_start));
356 			} else {
357 				WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH,
358 				       upper_32_bits(rdev->mc.vram_start));
359 				WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH,
360 				       upper_32_bits(rdev->mc.vram_start));
361 			}
362 		}
363 		WREG32(R_006110_D1GRPH_PRIMARY_SURFACE_ADDRESS + crtc_offsets[i],
364 		       (u32)rdev->mc.vram_start);
365 		WREG32(R_006118_D1GRPH_SECONDARY_SURFACE_ADDRESS + crtc_offsets[i],
366 		       (u32)rdev->mc.vram_start);
367 	}
368 	WREG32(R_000310_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start);
369 
370 	if (rdev->family >= CHIP_R600) {
371 		/* unblackout the MC */
372 		if (rdev->family >= CHIP_RV770)
373 			tmp = RREG32(R700_MC_CITF_CNTL);
374 		else
375 			tmp = RREG32(R600_CITF_CNTL);
376 		tmp &= ~R600_BLACKOUT_MASK;
377 		if (rdev->family >= CHIP_RV770)
378 			WREG32(R700_MC_CITF_CNTL, tmp);
379 		else
380 			WREG32(R600_CITF_CNTL, tmp);
381 		/* allow CPU access */
382 		WREG32(R600_BIF_FB_EN, R600_FB_READ_EN | R600_FB_WRITE_EN);
383 	}
384 
385 	for (i = 0; i < rdev->num_crtc; i++) {
386 		if (save->crtc_enabled[i]) {
387 			tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]);
388 			tmp &= ~AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
389 			WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp);
390 			/* wait for the next frame */
391 			frame_count = radeon_get_vblank_counter(rdev, i);
392 			for (j = 0; j < rdev->usec_timeout; j++) {
393 				if (radeon_get_vblank_counter(rdev, i) != frame_count)
394 					break;
395 				DRM_UDELAY(1);
396 			}
397 		}
398 	}
399 	/* Unlock vga access */
400 	WREG32(R_000328_VGA_HDP_CONTROL, save->vga_hdp_control);
401 	DRM_MDELAY(1);
402 	WREG32(R_000300_VGA_RENDER_CONTROL, save->vga_render_control);
403 }
404 
405 static void rv515_mc_program(struct radeon_device *rdev)
406 {
407 	struct rv515_mc_save save;
408 
409 	/* Stops all mc clients */
410 	rv515_mc_stop(rdev, &save);
411 
412 	/* Wait for mc idle */
413 	if (rv515_mc_wait_for_idle(rdev))
414 		dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
415 	/* Write VRAM size in case we are limiting it */
416 	WREG32(R_0000F8_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
417 	/* Program MC, should be a 32bits limited address space */
418 	WREG32_MC(R_000001_MC_FB_LOCATION,
419 			S_000001_MC_FB_START(rdev->mc.vram_start >> 16) |
420 			S_000001_MC_FB_TOP(rdev->mc.vram_end >> 16));
421 	WREG32(R_000134_HDP_FB_LOCATION,
422 		S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
423 	if (rdev->flags & RADEON_IS_AGP) {
424 		WREG32_MC(R_000002_MC_AGP_LOCATION,
425 			S_000002_MC_AGP_START(rdev->mc.gtt_start >> 16) |
426 			S_000002_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
427 		WREG32_MC(R_000003_MC_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
428 		WREG32_MC(R_000004_MC_AGP_BASE_2,
429 			S_000004_AGP_BASE_ADDR_2(upper_32_bits(rdev->mc.agp_base)));
430 	} else {
431 		WREG32_MC(R_000002_MC_AGP_LOCATION, 0xFFFFFFFF);
432 		WREG32_MC(R_000003_MC_AGP_BASE, 0);
433 		WREG32_MC(R_000004_MC_AGP_BASE_2, 0);
434 	}
435 
436 	rv515_mc_resume(rdev, &save);
437 }
438 
439 void rv515_clock_startup(struct radeon_device *rdev)
440 {
441 	if (radeon_dynclks != -1 && radeon_dynclks)
442 		radeon_atom_set_clock_gating(rdev, 1);
443 	/* We need to force on some of the block */
444 	WREG32_PLL(R_00000F_CP_DYN_CNTL,
445 		RREG32_PLL(R_00000F_CP_DYN_CNTL) | S_00000F_CP_FORCEON(1));
446 	WREG32_PLL(R_000011_E2_DYN_CNTL,
447 		RREG32_PLL(R_000011_E2_DYN_CNTL) | S_000011_E2_FORCEON(1));
448 	WREG32_PLL(R_000013_IDCT_DYN_CNTL,
449 		RREG32_PLL(R_000013_IDCT_DYN_CNTL) | S_000013_IDCT_FORCEON(1));
450 }
451 
452 static int rv515_startup(struct radeon_device *rdev)
453 {
454 	int r;
455 
456 	rv515_mc_program(rdev);
457 	/* Resume clock */
458 	rv515_clock_startup(rdev);
459 	/* Initialize GPU configuration (# pipes, ...) */
460 	rv515_gpu_init(rdev);
461 	/* Initialize GART (initialize after TTM so we can allocate
462 	 * memory through TTM but finalize after TTM) */
463 	if (rdev->flags & RADEON_IS_PCIE) {
464 		r = rv370_pcie_gart_enable(rdev);
465 		if (r)
466 			return r;
467 	}
468 
469 	/* allocate wb buffer */
470 	r = radeon_wb_init(rdev);
471 	if (r)
472 		return r;
473 
474 	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
475 	if (r) {
476 		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
477 		return r;
478 	}
479 
480 	/* Enable IRQ */
481 	rs600_irq_set(rdev);
482 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
483 	/* 1M ring buffer */
484 	r = r100_cp_init(rdev, 1024 * 1024);
485 	if (r) {
486 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
487 		return r;
488 	}
489 
490 	r = radeon_ib_pool_init(rdev);
491 	if (r) {
492 		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
493 		return r;
494 	}
495 
496 	return 0;
497 }
498 
499 int rv515_resume(struct radeon_device *rdev)
500 {
501 	int r;
502 
503 	/* Make sur GART are not working */
504 	if (rdev->flags & RADEON_IS_PCIE)
505 		rv370_pcie_gart_disable(rdev);
506 	/* Resume clock before doing reset */
507 	rv515_clock_startup(rdev);
508 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
509 	if (radeon_asic_reset(rdev)) {
510 		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
511 			RREG32(R_000E40_RBBM_STATUS),
512 			RREG32(R_0007C0_CP_STAT));
513 	}
514 	/* post */
515 	atom_asic_init(rdev->mode_info.atom_context);
516 	/* Resume clock after posting */
517 	rv515_clock_startup(rdev);
518 	/* Initialize surface registers */
519 	radeon_surface_init(rdev);
520 
521 	rdev->accel_working = true;
522 	r =  rv515_startup(rdev);
523 	if (r) {
524 		rdev->accel_working = false;
525 	}
526 	return r;
527 }
528 
529 int rv515_suspend(struct radeon_device *rdev)
530 {
531 	r100_cp_disable(rdev);
532 	radeon_wb_disable(rdev);
533 	rs600_irq_disable(rdev);
534 	if (rdev->flags & RADEON_IS_PCIE)
535 		rv370_pcie_gart_disable(rdev);
536 	return 0;
537 }
538 
539 void rv515_set_safe_registers(struct radeon_device *rdev)
540 {
541 	rdev->config.r300.reg_safe_bm = rv515_reg_safe_bm;
542 	rdev->config.r300.reg_safe_bm_size = DRM_ARRAY_SIZE(rv515_reg_safe_bm);
543 }
544 
545 void rv515_fini(struct radeon_device *rdev)
546 {
547 	r100_cp_fini(rdev);
548 	radeon_wb_fini(rdev);
549 	radeon_ib_pool_fini(rdev);
550 	radeon_gem_fini(rdev);
551 	rv370_pcie_gart_fini(rdev);
552 	radeon_agp_fini(rdev);
553 	radeon_irq_kms_fini(rdev);
554 	radeon_fence_driver_fini(rdev);
555 	radeon_bo_fini(rdev);
556 	radeon_atombios_fini(rdev);
557 	drm_free(rdev->bios, DRM_MEM_DRIVER);
558 	rdev->bios = NULL;
559 }
560 
561 int rv515_init(struct radeon_device *rdev)
562 {
563 	int r;
564 
565 	/* Initialize scratch registers */
566 	radeon_scratch_init(rdev);
567 	/* Initialize surface registers */
568 	radeon_surface_init(rdev);
569 	/* TODO: disable VGA need to use VGA request */
570 	/* restore some register to sane defaults */
571 	r100_restore_sanity(rdev);
572 	/* BIOS*/
573 	if (!radeon_get_bios(rdev)) {
574 		if (ASIC_IS_AVIVO(rdev))
575 			return -EINVAL;
576 	}
577 	if (rdev->is_atom_bios) {
578 		r = radeon_atombios_init(rdev);
579 		if (r)
580 			return r;
581 	} else {
582 		dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
583 		return -EINVAL;
584 	}
585 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
586 	if (radeon_asic_reset(rdev)) {
587 		dev_warn(rdev->dev,
588 			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
589 			RREG32(R_000E40_RBBM_STATUS),
590 			RREG32(R_0007C0_CP_STAT));
591 	}
592 	/* check if cards are posted or not */
593 	if (radeon_boot_test_post_card(rdev) == false)
594 		return -EINVAL;
595 	/* Initialize clocks */
596 	radeon_get_clock_info(rdev->ddev);
597 	/* initialize AGP */
598 	if (rdev->flags & RADEON_IS_AGP) {
599 		r = radeon_agp_init(rdev);
600 		if (r) {
601 			radeon_agp_disable(rdev);
602 		}
603 	}
604 	/* initialize memory controller */
605 	rv515_mc_init(rdev);
606 	rv515_debugfs(rdev);
607 	/* Fence driver */
608 	r = radeon_fence_driver_init(rdev);
609 	if (r)
610 		return r;
611 	r = radeon_irq_kms_init(rdev);
612 	if (r)
613 		return r;
614 	/* Memory manager */
615 	r = radeon_bo_init(rdev);
616 	if (r)
617 		return r;
618 	r = rv370_pcie_gart_init(rdev);
619 	if (r)
620 		return r;
621 	rv515_set_safe_registers(rdev);
622 
623 	rdev->accel_working = true;
624 	r = rv515_startup(rdev);
625 	if (r) {
626 		/* Somethings want wront with the accel init stop accel */
627 		dev_err(rdev->dev, "Disabling GPU acceleration\n");
628 		r100_cp_fini(rdev);
629 		radeon_wb_fini(rdev);
630 		radeon_ib_pool_fini(rdev);
631 		radeon_irq_kms_fini(rdev);
632 		rv370_pcie_gart_fini(rdev);
633 		radeon_agp_fini(rdev);
634 		rdev->accel_working = false;
635 	}
636 	return 0;
637 }
638 
639 void atom_rv515_force_tv_scaler(struct radeon_device *rdev, struct radeon_crtc *crtc)
640 {
641 	int index_reg = 0x6578 + crtc->crtc_offset;
642 	int data_reg = 0x657c + crtc->crtc_offset;
643 
644 	WREG32(0x659C + crtc->crtc_offset, 0x0);
645 	WREG32(0x6594 + crtc->crtc_offset, 0x705);
646 	WREG32(0x65A4 + crtc->crtc_offset, 0x10001);
647 	WREG32(0x65D8 + crtc->crtc_offset, 0x0);
648 	WREG32(0x65B0 + crtc->crtc_offset, 0x0);
649 	WREG32(0x65C0 + crtc->crtc_offset, 0x0);
650 	WREG32(0x65D4 + crtc->crtc_offset, 0x0);
651 	WREG32(index_reg, 0x0);
652 	WREG32(data_reg, 0x841880A8);
653 	WREG32(index_reg, 0x1);
654 	WREG32(data_reg, 0x84208680);
655 	WREG32(index_reg, 0x2);
656 	WREG32(data_reg, 0xBFF880B0);
657 	WREG32(index_reg, 0x100);
658 	WREG32(data_reg, 0x83D88088);
659 	WREG32(index_reg, 0x101);
660 	WREG32(data_reg, 0x84608680);
661 	WREG32(index_reg, 0x102);
662 	WREG32(data_reg, 0xBFF080D0);
663 	WREG32(index_reg, 0x200);
664 	WREG32(data_reg, 0x83988068);
665 	WREG32(index_reg, 0x201);
666 	WREG32(data_reg, 0x84A08680);
667 	WREG32(index_reg, 0x202);
668 	WREG32(data_reg, 0xBFF080F8);
669 	WREG32(index_reg, 0x300);
670 	WREG32(data_reg, 0x83588058);
671 	WREG32(index_reg, 0x301);
672 	WREG32(data_reg, 0x84E08660);
673 	WREG32(index_reg, 0x302);
674 	WREG32(data_reg, 0xBFF88120);
675 	WREG32(index_reg, 0x400);
676 	WREG32(data_reg, 0x83188040);
677 	WREG32(index_reg, 0x401);
678 	WREG32(data_reg, 0x85008660);
679 	WREG32(index_reg, 0x402);
680 	WREG32(data_reg, 0xBFF88150);
681 	WREG32(index_reg, 0x500);
682 	WREG32(data_reg, 0x82D88030);
683 	WREG32(index_reg, 0x501);
684 	WREG32(data_reg, 0x85408640);
685 	WREG32(index_reg, 0x502);
686 	WREG32(data_reg, 0xBFF88180);
687 	WREG32(index_reg, 0x600);
688 	WREG32(data_reg, 0x82A08018);
689 	WREG32(index_reg, 0x601);
690 	WREG32(data_reg, 0x85808620);
691 	WREG32(index_reg, 0x602);
692 	WREG32(data_reg, 0xBFF081B8);
693 	WREG32(index_reg, 0x700);
694 	WREG32(data_reg, 0x82608010);
695 	WREG32(index_reg, 0x701);
696 	WREG32(data_reg, 0x85A08600);
697 	WREG32(index_reg, 0x702);
698 	WREG32(data_reg, 0x800081F0);
699 	WREG32(index_reg, 0x800);
700 	WREG32(data_reg, 0x8228BFF8);
701 	WREG32(index_reg, 0x801);
702 	WREG32(data_reg, 0x85E085E0);
703 	WREG32(index_reg, 0x802);
704 	WREG32(data_reg, 0xBFF88228);
705 	WREG32(index_reg, 0x10000);
706 	WREG32(data_reg, 0x82A8BF00);
707 	WREG32(index_reg, 0x10001);
708 	WREG32(data_reg, 0x82A08CC0);
709 	WREG32(index_reg, 0x10002);
710 	WREG32(data_reg, 0x8008BEF8);
711 	WREG32(index_reg, 0x10100);
712 	WREG32(data_reg, 0x81F0BF28);
713 	WREG32(index_reg, 0x10101);
714 	WREG32(data_reg, 0x83608CA0);
715 	WREG32(index_reg, 0x10102);
716 	WREG32(data_reg, 0x8018BED0);
717 	WREG32(index_reg, 0x10200);
718 	WREG32(data_reg, 0x8148BF38);
719 	WREG32(index_reg, 0x10201);
720 	WREG32(data_reg, 0x84408C80);
721 	WREG32(index_reg, 0x10202);
722 	WREG32(data_reg, 0x8008BEB8);
723 	WREG32(index_reg, 0x10300);
724 	WREG32(data_reg, 0x80B0BF78);
725 	WREG32(index_reg, 0x10301);
726 	WREG32(data_reg, 0x85008C20);
727 	WREG32(index_reg, 0x10302);
728 	WREG32(data_reg, 0x8020BEA0);
729 	WREG32(index_reg, 0x10400);
730 	WREG32(data_reg, 0x8028BF90);
731 	WREG32(index_reg, 0x10401);
732 	WREG32(data_reg, 0x85E08BC0);
733 	WREG32(index_reg, 0x10402);
734 	WREG32(data_reg, 0x8018BE90);
735 	WREG32(index_reg, 0x10500);
736 	WREG32(data_reg, 0xBFB8BFB0);
737 	WREG32(index_reg, 0x10501);
738 	WREG32(data_reg, 0x86C08B40);
739 	WREG32(index_reg, 0x10502);
740 	WREG32(data_reg, 0x8010BE90);
741 	WREG32(index_reg, 0x10600);
742 	WREG32(data_reg, 0xBF58BFC8);
743 	WREG32(index_reg, 0x10601);
744 	WREG32(data_reg, 0x87A08AA0);
745 	WREG32(index_reg, 0x10602);
746 	WREG32(data_reg, 0x8010BE98);
747 	WREG32(index_reg, 0x10700);
748 	WREG32(data_reg, 0xBF10BFF0);
749 	WREG32(index_reg, 0x10701);
750 	WREG32(data_reg, 0x886089E0);
751 	WREG32(index_reg, 0x10702);
752 	WREG32(data_reg, 0x8018BEB0);
753 	WREG32(index_reg, 0x10800);
754 	WREG32(data_reg, 0xBED8BFE8);
755 	WREG32(index_reg, 0x10801);
756 	WREG32(data_reg, 0x89408940);
757 	WREG32(index_reg, 0x10802);
758 	WREG32(data_reg, 0xBFE8BED8);
759 	WREG32(index_reg, 0x20000);
760 	WREG32(data_reg, 0x80008000);
761 	WREG32(index_reg, 0x20001);
762 	WREG32(data_reg, 0x90008000);
763 	WREG32(index_reg, 0x20002);
764 	WREG32(data_reg, 0x80008000);
765 	WREG32(index_reg, 0x20003);
766 	WREG32(data_reg, 0x80008000);
767 	WREG32(index_reg, 0x20100);
768 	WREG32(data_reg, 0x80108000);
769 	WREG32(index_reg, 0x20101);
770 	WREG32(data_reg, 0x8FE0BF70);
771 	WREG32(index_reg, 0x20102);
772 	WREG32(data_reg, 0xBFE880C0);
773 	WREG32(index_reg, 0x20103);
774 	WREG32(data_reg, 0x80008000);
775 	WREG32(index_reg, 0x20200);
776 	WREG32(data_reg, 0x8018BFF8);
777 	WREG32(index_reg, 0x20201);
778 	WREG32(data_reg, 0x8F80BF08);
779 	WREG32(index_reg, 0x20202);
780 	WREG32(data_reg, 0xBFD081A0);
781 	WREG32(index_reg, 0x20203);
782 	WREG32(data_reg, 0xBFF88000);
783 	WREG32(index_reg, 0x20300);
784 	WREG32(data_reg, 0x80188000);
785 	WREG32(index_reg, 0x20301);
786 	WREG32(data_reg, 0x8EE0BEC0);
787 	WREG32(index_reg, 0x20302);
788 	WREG32(data_reg, 0xBFB082A0);
789 	WREG32(index_reg, 0x20303);
790 	WREG32(data_reg, 0x80008000);
791 	WREG32(index_reg, 0x20400);
792 	WREG32(data_reg, 0x80188000);
793 	WREG32(index_reg, 0x20401);
794 	WREG32(data_reg, 0x8E00BEA0);
795 	WREG32(index_reg, 0x20402);
796 	WREG32(data_reg, 0xBF8883C0);
797 	WREG32(index_reg, 0x20403);
798 	WREG32(data_reg, 0x80008000);
799 	WREG32(index_reg, 0x20500);
800 	WREG32(data_reg, 0x80188000);
801 	WREG32(index_reg, 0x20501);
802 	WREG32(data_reg, 0x8D00BE90);
803 	WREG32(index_reg, 0x20502);
804 	WREG32(data_reg, 0xBF588500);
805 	WREG32(index_reg, 0x20503);
806 	WREG32(data_reg, 0x80008008);
807 	WREG32(index_reg, 0x20600);
808 	WREG32(data_reg, 0x80188000);
809 	WREG32(index_reg, 0x20601);
810 	WREG32(data_reg, 0x8BC0BE98);
811 	WREG32(index_reg, 0x20602);
812 	WREG32(data_reg, 0xBF308660);
813 	WREG32(index_reg, 0x20603);
814 	WREG32(data_reg, 0x80008008);
815 	WREG32(index_reg, 0x20700);
816 	WREG32(data_reg, 0x80108000);
817 	WREG32(index_reg, 0x20701);
818 	WREG32(data_reg, 0x8A80BEB0);
819 	WREG32(index_reg, 0x20702);
820 	WREG32(data_reg, 0xBF0087C0);
821 	WREG32(index_reg, 0x20703);
822 	WREG32(data_reg, 0x80008008);
823 	WREG32(index_reg, 0x20800);
824 	WREG32(data_reg, 0x80108000);
825 	WREG32(index_reg, 0x20801);
826 	WREG32(data_reg, 0x8920BED0);
827 	WREG32(index_reg, 0x20802);
828 	WREG32(data_reg, 0xBED08920);
829 	WREG32(index_reg, 0x20803);
830 	WREG32(data_reg, 0x80008010);
831 	WREG32(index_reg, 0x30000);
832 	WREG32(data_reg, 0x90008000);
833 	WREG32(index_reg, 0x30001);
834 	WREG32(data_reg, 0x80008000);
835 	WREG32(index_reg, 0x30100);
836 	WREG32(data_reg, 0x8FE0BF90);
837 	WREG32(index_reg, 0x30101);
838 	WREG32(data_reg, 0xBFF880A0);
839 	WREG32(index_reg, 0x30200);
840 	WREG32(data_reg, 0x8F60BF40);
841 	WREG32(index_reg, 0x30201);
842 	WREG32(data_reg, 0xBFE88180);
843 	WREG32(index_reg, 0x30300);
844 	WREG32(data_reg, 0x8EC0BF00);
845 	WREG32(index_reg, 0x30301);
846 	WREG32(data_reg, 0xBFC88280);
847 	WREG32(index_reg, 0x30400);
848 	WREG32(data_reg, 0x8DE0BEE0);
849 	WREG32(index_reg, 0x30401);
850 	WREG32(data_reg, 0xBFA083A0);
851 	WREG32(index_reg, 0x30500);
852 	WREG32(data_reg, 0x8CE0BED0);
853 	WREG32(index_reg, 0x30501);
854 	WREG32(data_reg, 0xBF7884E0);
855 	WREG32(index_reg, 0x30600);
856 	WREG32(data_reg, 0x8BA0BED8);
857 	WREG32(index_reg, 0x30601);
858 	WREG32(data_reg, 0xBF508640);
859 	WREG32(index_reg, 0x30700);
860 	WREG32(data_reg, 0x8A60BEE8);
861 	WREG32(index_reg, 0x30701);
862 	WREG32(data_reg, 0xBF2087A0);
863 	WREG32(index_reg, 0x30800);
864 	WREG32(data_reg, 0x8900BF00);
865 	WREG32(index_reg, 0x30801);
866 	WREG32(data_reg, 0xBF008900);
867 }
868 
869 struct rv515_watermark {
870 	u32        lb_request_fifo_depth;
871 	fixed20_12 num_line_pair;
872 	fixed20_12 estimated_width;
873 	fixed20_12 worst_case_latency;
874 	fixed20_12 consumption_rate;
875 	fixed20_12 active_time;
876 	fixed20_12 dbpp;
877 	fixed20_12 priority_mark_max;
878 	fixed20_12 priority_mark;
879 	fixed20_12 sclk;
880 };
881 
882 static void rv515_crtc_bandwidth_compute(struct radeon_device *rdev,
883 				  struct radeon_crtc *crtc,
884 				  struct rv515_watermark *wm)
885 {
886 	struct drm_display_mode *mode = &crtc->base.mode;
887 	fixed20_12 a, b, c;
888 	fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
889 	fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
890 
891 	if (!crtc->base.enabled) {
892 		/* FIXME: wouldn't it better to set priority mark to maximum */
893 		wm->lb_request_fifo_depth = 4;
894 		return;
895 	}
896 
897 	if (crtc->vsc.full > dfixed_const(2))
898 		wm->num_line_pair.full = dfixed_const(2);
899 	else
900 		wm->num_line_pair.full = dfixed_const(1);
901 
902 	b.full = dfixed_const(mode->crtc_hdisplay);
903 	c.full = dfixed_const(256);
904 	a.full = dfixed_div(b, c);
905 	request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair);
906 	request_fifo_depth.full = dfixed_ceil(request_fifo_depth);
907 	if (a.full < dfixed_const(4)) {
908 		wm->lb_request_fifo_depth = 4;
909 	} else {
910 		wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth);
911 	}
912 
913 	/* Determine consumption rate
914 	 *  pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
915 	 *  vtaps = number of vertical taps,
916 	 *  vsc = vertical scaling ratio, defined as source/destination
917 	 *  hsc = horizontal scaling ration, defined as source/destination
918 	 */
919 	a.full = dfixed_const(mode->clock);
920 	b.full = dfixed_const(1000);
921 	a.full = dfixed_div(a, b);
922 	pclk.full = dfixed_div(b, a);
923 	if (crtc->rmx_type != RMX_OFF) {
924 		b.full = dfixed_const(2);
925 		if (crtc->vsc.full > b.full)
926 			b.full = crtc->vsc.full;
927 		b.full = dfixed_mul(b, crtc->hsc);
928 		c.full = dfixed_const(2);
929 		b.full = dfixed_div(b, c);
930 		consumption_time.full = dfixed_div(pclk, b);
931 	} else {
932 		consumption_time.full = pclk.full;
933 	}
934 	a.full = dfixed_const(1);
935 	wm->consumption_rate.full = dfixed_div(a, consumption_time);
936 
937 
938 	/* Determine line time
939 	 *  LineTime = total time for one line of displayhtotal
940 	 *  LineTime = total number of horizontal pixels
941 	 *  pclk = pixel clock period(ns)
942 	 */
943 	a.full = dfixed_const(crtc->base.mode.crtc_htotal);
944 	line_time.full = dfixed_mul(a, pclk);
945 
946 	/* Determine active time
947 	 *  ActiveTime = time of active region of display within one line,
948 	 *  hactive = total number of horizontal active pixels
949 	 *  htotal = total number of horizontal pixels
950 	 */
951 	a.full = dfixed_const(crtc->base.mode.crtc_htotal);
952 	b.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
953 	wm->active_time.full = dfixed_mul(line_time, b);
954 	wm->active_time.full = dfixed_div(wm->active_time, a);
955 
956 	/* Determine chunk time
957 	 * ChunkTime = the time it takes the DCP to send one chunk of data
958 	 * to the LB which consists of pipeline delay and inter chunk gap
959 	 * sclk = system clock(Mhz)
960 	 */
961 	a.full = dfixed_const(600 * 1000);
962 	chunk_time.full = dfixed_div(a, rdev->pm.sclk);
963 	read_delay_latency.full = dfixed_const(1000);
964 
965 	/* Determine the worst case latency
966 	 * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
967 	 * WorstCaseLatency = worst case time from urgent to when the MC starts
968 	 *                    to return data
969 	 * READ_DELAY_IDLE_MAX = constant of 1us
970 	 * ChunkTime = time it takes the DCP to send one chunk of data to the LB
971 	 *             which consists of pipeline delay and inter chunk gap
972 	 */
973 	if (dfixed_trunc(wm->num_line_pair) > 1) {
974 		a.full = dfixed_const(3);
975 		wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
976 		wm->worst_case_latency.full += read_delay_latency.full;
977 	} else {
978 		wm->worst_case_latency.full = chunk_time.full + read_delay_latency.full;
979 	}
980 
981 	/* Determine the tolerable latency
982 	 * TolerableLatency = Any given request has only 1 line time
983 	 *                    for the data to be returned
984 	 * LBRequestFifoDepth = Number of chunk requests the LB can
985 	 *                      put into the request FIFO for a display
986 	 *  LineTime = total time for one line of display
987 	 *  ChunkTime = the time it takes the DCP to send one chunk
988 	 *              of data to the LB which consists of
989 	 *  pipeline delay and inter chunk gap
990 	 */
991 	if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) {
992 		tolerable_latency.full = line_time.full;
993 	} else {
994 		tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2);
995 		tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
996 		tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time);
997 		tolerable_latency.full = line_time.full - tolerable_latency.full;
998 	}
999 	/* We assume worst case 32bits (4 bytes) */
1000 	wm->dbpp.full = dfixed_const(2 * 16);
1001 
1002 	/* Determine the maximum priority mark
1003 	 *  width = viewport width in pixels
1004 	 */
1005 	a.full = dfixed_const(16);
1006 	wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
1007 	wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a);
1008 	wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max);
1009 
1010 	/* Determine estimated width */
1011 	estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
1012 	estimated_width.full = dfixed_div(estimated_width, consumption_time);
1013 	if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
1014 		wm->priority_mark.full = wm->priority_mark_max.full;
1015 	} else {
1016 		a.full = dfixed_const(16);
1017 		wm->priority_mark.full = dfixed_div(estimated_width, a);
1018 		wm->priority_mark.full = dfixed_ceil(wm->priority_mark);
1019 		wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
1020 	}
1021 }
1022 
1023 void rv515_bandwidth_avivo_update(struct radeon_device *rdev)
1024 {
1025 	struct drm_display_mode *mode0 = NULL;
1026 	struct drm_display_mode *mode1 = NULL;
1027 	struct rv515_watermark wm0;
1028 	struct rv515_watermark wm1;
1029 	u32 tmp;
1030 	u32 d1mode_priority_a_cnt = MODE_PRIORITY_OFF;
1031 	u32 d2mode_priority_a_cnt = MODE_PRIORITY_OFF;
1032 	fixed20_12 priority_mark02, priority_mark12, fill_rate;
1033 	fixed20_12 a, b;
1034 
1035 	if (rdev->mode_info.crtcs[0]->base.enabled)
1036 		mode0 = &rdev->mode_info.crtcs[0]->base.mode;
1037 	if (rdev->mode_info.crtcs[1]->base.enabled)
1038 		mode1 = &rdev->mode_info.crtcs[1]->base.mode;
1039 	rs690_line_buffer_adjust(rdev, mode0, mode1);
1040 
1041 	rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0);
1042 	rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1);
1043 
1044 	tmp = wm0.lb_request_fifo_depth;
1045 	tmp |= wm1.lb_request_fifo_depth << 16;
1046 	WREG32(LB_MAX_REQ_OUTSTANDING, tmp);
1047 
1048 	if (mode0 && mode1) {
1049 		if (dfixed_trunc(wm0.dbpp) > 64)
1050 			a.full = dfixed_div(wm0.dbpp, wm0.num_line_pair);
1051 		else
1052 			a.full = wm0.num_line_pair.full;
1053 		if (dfixed_trunc(wm1.dbpp) > 64)
1054 			b.full = dfixed_div(wm1.dbpp, wm1.num_line_pair);
1055 		else
1056 			b.full = wm1.num_line_pair.full;
1057 		a.full += b.full;
1058 		fill_rate.full = dfixed_div(wm0.sclk, a);
1059 		if (wm0.consumption_rate.full > fill_rate.full) {
1060 			b.full = wm0.consumption_rate.full - fill_rate.full;
1061 			b.full = dfixed_mul(b, wm0.active_time);
1062 			a.full = dfixed_const(16);
1063 			b.full = dfixed_div(b, a);
1064 			a.full = dfixed_mul(wm0.worst_case_latency,
1065 						wm0.consumption_rate);
1066 			priority_mark02.full = a.full + b.full;
1067 		} else {
1068 			a.full = dfixed_mul(wm0.worst_case_latency,
1069 						wm0.consumption_rate);
1070 			b.full = dfixed_const(16 * 1000);
1071 			priority_mark02.full = dfixed_div(a, b);
1072 		}
1073 		if (wm1.consumption_rate.full > fill_rate.full) {
1074 			b.full = wm1.consumption_rate.full - fill_rate.full;
1075 			b.full = dfixed_mul(b, wm1.active_time);
1076 			a.full = dfixed_const(16);
1077 			b.full = dfixed_div(b, a);
1078 			a.full = dfixed_mul(wm1.worst_case_latency,
1079 						wm1.consumption_rate);
1080 			priority_mark12.full = a.full + b.full;
1081 		} else {
1082 			a.full = dfixed_mul(wm1.worst_case_latency,
1083 						wm1.consumption_rate);
1084 			b.full = dfixed_const(16 * 1000);
1085 			priority_mark12.full = dfixed_div(a, b);
1086 		}
1087 		if (wm0.priority_mark.full > priority_mark02.full)
1088 			priority_mark02.full = wm0.priority_mark.full;
1089 		if (dfixed_trunc(priority_mark02) < 0)
1090 			priority_mark02.full = 0;
1091 		if (wm0.priority_mark_max.full > priority_mark02.full)
1092 			priority_mark02.full = wm0.priority_mark_max.full;
1093 		if (wm1.priority_mark.full > priority_mark12.full)
1094 			priority_mark12.full = wm1.priority_mark.full;
1095 		if (dfixed_trunc(priority_mark12) < 0)
1096 			priority_mark12.full = 0;
1097 		if (wm1.priority_mark_max.full > priority_mark12.full)
1098 			priority_mark12.full = wm1.priority_mark_max.full;
1099 		d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
1100 		d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
1101 		if (rdev->disp_priority == 2) {
1102 			d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1103 			d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1104 		}
1105 	} else if (mode0) {
1106 		if (dfixed_trunc(wm0.dbpp) > 64)
1107 			a.full = dfixed_div(wm0.dbpp, wm0.num_line_pair);
1108 		else
1109 			a.full = wm0.num_line_pair.full;
1110 		fill_rate.full = dfixed_div(wm0.sclk, a);
1111 		if (wm0.consumption_rate.full > fill_rate.full) {
1112 			b.full = wm0.consumption_rate.full - fill_rate.full;
1113 			b.full = dfixed_mul(b, wm0.active_time);
1114 			a.full = dfixed_const(16);
1115 			b.full = dfixed_div(b, a);
1116 			a.full = dfixed_mul(wm0.worst_case_latency,
1117 						wm0.consumption_rate);
1118 			priority_mark02.full = a.full + b.full;
1119 		} else {
1120 			a.full = dfixed_mul(wm0.worst_case_latency,
1121 						wm0.consumption_rate);
1122 			b.full = dfixed_const(16);
1123 			priority_mark02.full = dfixed_div(a, b);
1124 		}
1125 		if (wm0.priority_mark.full > priority_mark02.full)
1126 			priority_mark02.full = wm0.priority_mark.full;
1127 		if (dfixed_trunc(priority_mark02) < 0)
1128 			priority_mark02.full = 0;
1129 		if (wm0.priority_mark_max.full > priority_mark02.full)
1130 			priority_mark02.full = wm0.priority_mark_max.full;
1131 		d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
1132 		if (rdev->disp_priority == 2)
1133 			d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1134 	} else if (mode1) {
1135 		if (dfixed_trunc(wm1.dbpp) > 64)
1136 			a.full = dfixed_div(wm1.dbpp, wm1.num_line_pair);
1137 		else
1138 			a.full = wm1.num_line_pair.full;
1139 		fill_rate.full = dfixed_div(wm1.sclk, a);
1140 		if (wm1.consumption_rate.full > fill_rate.full) {
1141 			b.full = wm1.consumption_rate.full - fill_rate.full;
1142 			b.full = dfixed_mul(b, wm1.active_time);
1143 			a.full = dfixed_const(16);
1144 			b.full = dfixed_div(b, a);
1145 			a.full = dfixed_mul(wm1.worst_case_latency,
1146 						wm1.consumption_rate);
1147 			priority_mark12.full = a.full + b.full;
1148 		} else {
1149 			a.full = dfixed_mul(wm1.worst_case_latency,
1150 						wm1.consumption_rate);
1151 			b.full = dfixed_const(16 * 1000);
1152 			priority_mark12.full = dfixed_div(a, b);
1153 		}
1154 		if (wm1.priority_mark.full > priority_mark12.full)
1155 			priority_mark12.full = wm1.priority_mark.full;
1156 		if (dfixed_trunc(priority_mark12) < 0)
1157 			priority_mark12.full = 0;
1158 		if (wm1.priority_mark_max.full > priority_mark12.full)
1159 			priority_mark12.full = wm1.priority_mark_max.full;
1160 		d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
1161 		if (rdev->disp_priority == 2)
1162 			d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1163 	}
1164 
1165 	WREG32(D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
1166 	WREG32(D1MODE_PRIORITY_B_CNT, d1mode_priority_a_cnt);
1167 	WREG32(D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
1168 	WREG32(D2MODE_PRIORITY_B_CNT, d2mode_priority_a_cnt);
1169 }
1170 
1171 void rv515_bandwidth_update(struct radeon_device *rdev)
1172 {
1173 	uint32_t tmp;
1174 	struct drm_display_mode *mode0 = NULL;
1175 	struct drm_display_mode *mode1 = NULL;
1176 
1177 	radeon_update_display_priority(rdev);
1178 
1179 	if (rdev->mode_info.crtcs[0]->base.enabled)
1180 		mode0 = &rdev->mode_info.crtcs[0]->base.mode;
1181 	if (rdev->mode_info.crtcs[1]->base.enabled)
1182 		mode1 = &rdev->mode_info.crtcs[1]->base.mode;
1183 	/*
1184 	 * Set display0/1 priority up in the memory controller for
1185 	 * modes if the user specifies HIGH for displaypriority
1186 	 * option.
1187 	 */
1188 	if ((rdev->disp_priority == 2) &&
1189 	    (rdev->family == CHIP_RV515)) {
1190 		tmp = RREG32_MC(MC_MISC_LAT_TIMER);
1191 		tmp &= ~MC_DISP1R_INIT_LAT_MASK;
1192 		tmp &= ~MC_DISP0R_INIT_LAT_MASK;
1193 		if (mode1)
1194 			tmp |= (1 << MC_DISP1R_INIT_LAT_SHIFT);
1195 		if (mode0)
1196 			tmp |= (1 << MC_DISP0R_INIT_LAT_SHIFT);
1197 		WREG32_MC(MC_MISC_LAT_TIMER, tmp);
1198 	}
1199 	rv515_bandwidth_avivo_update(rdev);
1200 }
1201