xref: /linux/drivers/gpu/drm/radeon/rv515.c (revision aa07a99412f56ad56faecbaa683f3bc0ae99abc2)
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 <linux/seq_file.h>
29 #include "drmP.h"
30 #include "rv515d.h"
31 #include "radeon.h"
32 #include "atom.h"
33 #include "rv515_reg_safe.h"
34 
35 /* This files gather functions specifics to: rv515 */
36 int rv515_debugfs_pipes_info_init(struct radeon_device *rdev);
37 int rv515_debugfs_ga_info_init(struct radeon_device *rdev);
38 void rv515_gpu_init(struct radeon_device *rdev);
39 int rv515_mc_wait_for_idle(struct radeon_device *rdev);
40 
41 void rv515_debugfs(struct radeon_device *rdev)
42 {
43 	if (r100_debugfs_rbbm_init(rdev)) {
44 		DRM_ERROR("Failed to register debugfs file for RBBM !\n");
45 	}
46 	if (rv515_debugfs_pipes_info_init(rdev)) {
47 		DRM_ERROR("Failed to register debugfs file for pipes !\n");
48 	}
49 	if (rv515_debugfs_ga_info_init(rdev)) {
50 		DRM_ERROR("Failed to register debugfs file for pipes !\n");
51 	}
52 }
53 
54 void rv515_ring_start(struct radeon_device *rdev)
55 {
56 	int r;
57 
58 	r = radeon_ring_lock(rdev, 64);
59 	if (r) {
60 		return;
61 	}
62 	radeon_ring_write(rdev, PACKET0(ISYNC_CNTL, 0));
63 	radeon_ring_write(rdev,
64 			  ISYNC_ANY2D_IDLE3D |
65 			  ISYNC_ANY3D_IDLE2D |
66 			  ISYNC_WAIT_IDLEGUI |
67 			  ISYNC_CPSCRATCH_IDLEGUI);
68 	radeon_ring_write(rdev, PACKET0(WAIT_UNTIL, 0));
69 	radeon_ring_write(rdev, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
70 	radeon_ring_write(rdev, PACKET0(0x170C, 0));
71 	radeon_ring_write(rdev, 1 << 31);
72 	radeon_ring_write(rdev, PACKET0(GB_SELECT, 0));
73 	radeon_ring_write(rdev, 0);
74 	radeon_ring_write(rdev, PACKET0(GB_ENABLE, 0));
75 	radeon_ring_write(rdev, 0);
76 	radeon_ring_write(rdev, PACKET0(0x42C8, 0));
77 	radeon_ring_write(rdev, (1 << rdev->num_gb_pipes) - 1);
78 	radeon_ring_write(rdev, PACKET0(VAP_INDEX_OFFSET, 0));
79 	radeon_ring_write(rdev, 0);
80 	radeon_ring_write(rdev, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
81 	radeon_ring_write(rdev, RB3D_DC_FLUSH | RB3D_DC_FREE);
82 	radeon_ring_write(rdev, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
83 	radeon_ring_write(rdev, ZC_FLUSH | ZC_FREE);
84 	radeon_ring_write(rdev, PACKET0(WAIT_UNTIL, 0));
85 	radeon_ring_write(rdev, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
86 	radeon_ring_write(rdev, PACKET0(GB_AA_CONFIG, 0));
87 	radeon_ring_write(rdev, 0);
88 	radeon_ring_write(rdev, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
89 	radeon_ring_write(rdev, RB3D_DC_FLUSH | RB3D_DC_FREE);
90 	radeon_ring_write(rdev, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
91 	radeon_ring_write(rdev, ZC_FLUSH | ZC_FREE);
92 	radeon_ring_write(rdev, PACKET0(GB_MSPOS0, 0));
93 	radeon_ring_write(rdev,
94 			  ((6 << MS_X0_SHIFT) |
95 			   (6 << MS_Y0_SHIFT) |
96 			   (6 << MS_X1_SHIFT) |
97 			   (6 << MS_Y1_SHIFT) |
98 			   (6 << MS_X2_SHIFT) |
99 			   (6 << MS_Y2_SHIFT) |
100 			   (6 << MSBD0_Y_SHIFT) |
101 			   (6 << MSBD0_X_SHIFT)));
102 	radeon_ring_write(rdev, PACKET0(GB_MSPOS1, 0));
103 	radeon_ring_write(rdev,
104 			  ((6 << MS_X3_SHIFT) |
105 			   (6 << MS_Y3_SHIFT) |
106 			   (6 << MS_X4_SHIFT) |
107 			   (6 << MS_Y4_SHIFT) |
108 			   (6 << MS_X5_SHIFT) |
109 			   (6 << MS_Y5_SHIFT) |
110 			   (6 << MSBD1_SHIFT)));
111 	radeon_ring_write(rdev, PACKET0(GA_ENHANCE, 0));
112 	radeon_ring_write(rdev, GA_DEADLOCK_CNTL | GA_FASTSYNC_CNTL);
113 	radeon_ring_write(rdev, PACKET0(GA_POLY_MODE, 0));
114 	radeon_ring_write(rdev, FRONT_PTYPE_TRIANGE | BACK_PTYPE_TRIANGE);
115 	radeon_ring_write(rdev, PACKET0(GA_ROUND_MODE, 0));
116 	radeon_ring_write(rdev, GEOMETRY_ROUND_NEAREST | COLOR_ROUND_NEAREST);
117 	radeon_ring_write(rdev, PACKET0(0x20C8, 0));
118 	radeon_ring_write(rdev, 0);
119 	radeon_ring_unlock_commit(rdev);
120 }
121 
122 int rv515_mc_wait_for_idle(struct radeon_device *rdev)
123 {
124 	unsigned i;
125 	uint32_t tmp;
126 
127 	for (i = 0; i < rdev->usec_timeout; i++) {
128 		/* read MC_STATUS */
129 		tmp = RREG32_MC(MC_STATUS);
130 		if (tmp & MC_STATUS_IDLE) {
131 			return 0;
132 		}
133 		DRM_UDELAY(1);
134 	}
135 	return -1;
136 }
137 
138 void rv515_vga_render_disable(struct radeon_device *rdev)
139 {
140 	WREG32(R_000300_VGA_RENDER_CONTROL,
141 		RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL);
142 }
143 
144 void rv515_gpu_init(struct radeon_device *rdev)
145 {
146 	unsigned pipe_select_current, gb_pipe_select, tmp;
147 
148 	r100_hdp_reset(rdev);
149 	r100_rb2d_reset(rdev);
150 
151 	if (r100_gui_wait_for_idle(rdev)) {
152 		printk(KERN_WARNING "Failed to wait GUI idle while "
153 		       "reseting GPU. Bad things might happen.\n");
154 	}
155 
156 	rv515_vga_render_disable(rdev);
157 
158 	r420_pipes_init(rdev);
159 	gb_pipe_select = RREG32(0x402C);
160 	tmp = RREG32(0x170C);
161 	pipe_select_current = (tmp >> 2) & 3;
162 	tmp = (1 << pipe_select_current) |
163 	      (((gb_pipe_select >> 8) & 0xF) << 4);
164 	WREG32_PLL(0x000D, tmp);
165 	if (r100_gui_wait_for_idle(rdev)) {
166 		printk(KERN_WARNING "Failed to wait GUI idle while "
167 		       "reseting GPU. Bad things might happen.\n");
168 	}
169 	if (rv515_mc_wait_for_idle(rdev)) {
170 		printk(KERN_WARNING "Failed to wait MC idle while "
171 		       "programming pipes. Bad things might happen.\n");
172 	}
173 }
174 
175 int rv515_ga_reset(struct radeon_device *rdev)
176 {
177 	uint32_t tmp;
178 	bool reinit_cp;
179 	int i;
180 
181 	reinit_cp = rdev->cp.ready;
182 	rdev->cp.ready = false;
183 	for (i = 0; i < rdev->usec_timeout; i++) {
184 		WREG32(CP_CSQ_MODE, 0);
185 		WREG32(CP_CSQ_CNTL, 0);
186 		WREG32(RBBM_SOFT_RESET, 0x32005);
187 		(void)RREG32(RBBM_SOFT_RESET);
188 		udelay(200);
189 		WREG32(RBBM_SOFT_RESET, 0);
190 		/* Wait to prevent race in RBBM_STATUS */
191 		mdelay(1);
192 		tmp = RREG32(RBBM_STATUS);
193 		if (tmp & ((1 << 20) | (1 << 26))) {
194 			DRM_ERROR("VAP & CP still busy (RBBM_STATUS=0x%08X)\n", tmp);
195 			/* GA still busy soft reset it */
196 			WREG32(0x429C, 0x200);
197 			WREG32(VAP_PVS_STATE_FLUSH_REG, 0);
198 			WREG32(0x43E0, 0);
199 			WREG32(0x43E4, 0);
200 			WREG32(0x24AC, 0);
201 		}
202 		/* Wait to prevent race in RBBM_STATUS */
203 		mdelay(1);
204 		tmp = RREG32(RBBM_STATUS);
205 		if (!(tmp & ((1 << 20) | (1 << 26)))) {
206 			break;
207 		}
208 	}
209 	for (i = 0; i < rdev->usec_timeout; i++) {
210 		tmp = RREG32(RBBM_STATUS);
211 		if (!(tmp & ((1 << 20) | (1 << 26)))) {
212 			DRM_INFO("GA reset succeed (RBBM_STATUS=0x%08X)\n",
213 				 tmp);
214 			DRM_INFO("GA_IDLE=0x%08X\n", RREG32(0x425C));
215 			DRM_INFO("RB3D_RESET_STATUS=0x%08X\n", RREG32(0x46f0));
216 			DRM_INFO("ISYNC_CNTL=0x%08X\n", RREG32(0x1724));
217 			if (reinit_cp) {
218 				return r100_cp_init(rdev, rdev->cp.ring_size);
219 			}
220 			return 0;
221 		}
222 		DRM_UDELAY(1);
223 	}
224 	tmp = RREG32(RBBM_STATUS);
225 	DRM_ERROR("Failed to reset GA ! (RBBM_STATUS=0x%08X)\n", tmp);
226 	return -1;
227 }
228 
229 int rv515_gpu_reset(struct radeon_device *rdev)
230 {
231 	uint32_t status;
232 
233 	/* reset order likely matter */
234 	status = RREG32(RBBM_STATUS);
235 	/* reset HDP */
236 	r100_hdp_reset(rdev);
237 	/* reset rb2d */
238 	if (status & ((1 << 17) | (1 << 18) | (1 << 27))) {
239 		r100_rb2d_reset(rdev);
240 	}
241 	/* reset GA */
242 	if (status & ((1 << 20) | (1 << 26))) {
243 		rv515_ga_reset(rdev);
244 	}
245 	/* reset CP */
246 	status = RREG32(RBBM_STATUS);
247 	if (status & (1 << 16)) {
248 		r100_cp_reset(rdev);
249 	}
250 	/* Check if GPU is idle */
251 	status = RREG32(RBBM_STATUS);
252 	if (status & (1 << 31)) {
253 		DRM_ERROR("Failed to reset GPU (RBBM_STATUS=0x%08X)\n", status);
254 		return -1;
255 	}
256 	DRM_INFO("GPU reset succeed (RBBM_STATUS=0x%08X)\n", status);
257 	return 0;
258 }
259 
260 static void rv515_vram_get_type(struct radeon_device *rdev)
261 {
262 	uint32_t tmp;
263 
264 	rdev->mc.vram_width = 128;
265 	rdev->mc.vram_is_ddr = true;
266 	tmp = RREG32_MC(RV515_MC_CNTL) & MEM_NUM_CHANNELS_MASK;
267 	switch (tmp) {
268 	case 0:
269 		rdev->mc.vram_width = 64;
270 		break;
271 	case 1:
272 		rdev->mc.vram_width = 128;
273 		break;
274 	default:
275 		rdev->mc.vram_width = 128;
276 		break;
277 	}
278 }
279 
280 void rv515_vram_info(struct radeon_device *rdev)
281 {
282 	fixed20_12 a;
283 
284 	rv515_vram_get_type(rdev);
285 
286 	r100_vram_init_sizes(rdev);
287 	/* FIXME: we should enforce default clock in case GPU is not in
288 	 * default setup
289 	 */
290 	a.full = rfixed_const(100);
291 	rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
292 	rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
293 }
294 
295 uint32_t rv515_mc_rreg(struct radeon_device *rdev, uint32_t reg)
296 {
297 	uint32_t r;
298 
299 	WREG32(MC_IND_INDEX, 0x7f0000 | (reg & 0xffff));
300 	r = RREG32(MC_IND_DATA);
301 	WREG32(MC_IND_INDEX, 0);
302 	return r;
303 }
304 
305 void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
306 {
307 	WREG32(MC_IND_INDEX, 0xff0000 | ((reg) & 0xffff));
308 	WREG32(MC_IND_DATA, (v));
309 	WREG32(MC_IND_INDEX, 0);
310 }
311 
312 #if defined(CONFIG_DEBUG_FS)
313 static int rv515_debugfs_pipes_info(struct seq_file *m, void *data)
314 {
315 	struct drm_info_node *node = (struct drm_info_node *) m->private;
316 	struct drm_device *dev = node->minor->dev;
317 	struct radeon_device *rdev = dev->dev_private;
318 	uint32_t tmp;
319 
320 	tmp = RREG32(GB_PIPE_SELECT);
321 	seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp);
322 	tmp = RREG32(SU_REG_DEST);
323 	seq_printf(m, "SU_REG_DEST 0x%08x\n", tmp);
324 	tmp = RREG32(GB_TILE_CONFIG);
325 	seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp);
326 	tmp = RREG32(DST_PIPE_CONFIG);
327 	seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp);
328 	return 0;
329 }
330 
331 static int rv515_debugfs_ga_info(struct seq_file *m, void *data)
332 {
333 	struct drm_info_node *node = (struct drm_info_node *) m->private;
334 	struct drm_device *dev = node->minor->dev;
335 	struct radeon_device *rdev = dev->dev_private;
336 	uint32_t tmp;
337 
338 	tmp = RREG32(0x2140);
339 	seq_printf(m, "VAP_CNTL_STATUS 0x%08x\n", tmp);
340 	radeon_gpu_reset(rdev);
341 	tmp = RREG32(0x425C);
342 	seq_printf(m, "GA_IDLE 0x%08x\n", tmp);
343 	return 0;
344 }
345 
346 static struct drm_info_list rv515_pipes_info_list[] = {
347 	{"rv515_pipes_info", rv515_debugfs_pipes_info, 0, NULL},
348 };
349 
350 static struct drm_info_list rv515_ga_info_list[] = {
351 	{"rv515_ga_info", rv515_debugfs_ga_info, 0, NULL},
352 };
353 #endif
354 
355 int rv515_debugfs_pipes_info_init(struct radeon_device *rdev)
356 {
357 #if defined(CONFIG_DEBUG_FS)
358 	return radeon_debugfs_add_files(rdev, rv515_pipes_info_list, 1);
359 #else
360 	return 0;
361 #endif
362 }
363 
364 int rv515_debugfs_ga_info_init(struct radeon_device *rdev)
365 {
366 #if defined(CONFIG_DEBUG_FS)
367 	return radeon_debugfs_add_files(rdev, rv515_ga_info_list, 1);
368 #else
369 	return 0;
370 #endif
371 }
372 
373 void rv515_mc_stop(struct radeon_device *rdev, struct rv515_mc_save *save)
374 {
375 	save->d1vga_control = RREG32(R_000330_D1VGA_CONTROL);
376 	save->d2vga_control = RREG32(R_000338_D2VGA_CONTROL);
377 	save->vga_render_control = RREG32(R_000300_VGA_RENDER_CONTROL);
378 	save->vga_hdp_control = RREG32(R_000328_VGA_HDP_CONTROL);
379 	save->d1crtc_control = RREG32(R_006080_D1CRTC_CONTROL);
380 	save->d2crtc_control = RREG32(R_006880_D2CRTC_CONTROL);
381 
382 	/* Stop all video */
383 	WREG32(R_000330_D1VGA_CONTROL, 0);
384 	WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 0);
385 	WREG32(R_000300_VGA_RENDER_CONTROL, 0);
386 	WREG32(R_0060E8_D1CRTC_UPDATE_LOCK, 1);
387 	WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 1);
388 	WREG32(R_006080_D1CRTC_CONTROL, 0);
389 	WREG32(R_006880_D2CRTC_CONTROL, 0);
390 	WREG32(R_0060E8_D1CRTC_UPDATE_LOCK, 0);
391 	WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 0);
392 }
393 
394 void rv515_mc_resume(struct radeon_device *rdev, struct rv515_mc_save *save)
395 {
396 	WREG32(R_006110_D1GRPH_PRIMARY_SURFACE_ADDRESS, rdev->mc.vram_start);
397 	WREG32(R_006118_D1GRPH_SECONDARY_SURFACE_ADDRESS, rdev->mc.vram_start);
398 	WREG32(R_006910_D2GRPH_PRIMARY_SURFACE_ADDRESS, rdev->mc.vram_start);
399 	WREG32(R_006918_D2GRPH_SECONDARY_SURFACE_ADDRESS, rdev->mc.vram_start);
400 	WREG32(R_000310_VGA_MEMORY_BASE_ADDRESS, rdev->mc.vram_start);
401 	/* Unlock host access */
402 	WREG32(R_000328_VGA_HDP_CONTROL, save->vga_hdp_control);
403 	mdelay(1);
404 	/* Restore video state */
405 	WREG32(R_0060E8_D1CRTC_UPDATE_LOCK, 1);
406 	WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 1);
407 	WREG32(R_006080_D1CRTC_CONTROL, save->d1crtc_control);
408 	WREG32(R_006880_D2CRTC_CONTROL, save->d2crtc_control);
409 	WREG32(R_0060E8_D1CRTC_UPDATE_LOCK, 0);
410 	WREG32(R_0068E8_D2CRTC_UPDATE_LOCK, 0);
411 	WREG32(R_000330_D1VGA_CONTROL, save->d1vga_control);
412 	WREG32(R_000338_D2VGA_CONTROL, save->d2vga_control);
413 	WREG32(R_000300_VGA_RENDER_CONTROL, save->vga_render_control);
414 }
415 
416 void rv515_mc_program(struct radeon_device *rdev)
417 {
418 	struct rv515_mc_save save;
419 
420 	/* Stops all mc clients */
421 	rv515_mc_stop(rdev, &save);
422 
423 	/* Wait for mc idle */
424 	if (rv515_mc_wait_for_idle(rdev))
425 		dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
426 	/* Write VRAM size in case we are limiting it */
427 	WREG32(R_0000F8_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
428 	/* Program MC, should be a 32bits limited address space */
429 	WREG32_MC(R_000001_MC_FB_LOCATION,
430 			S_000001_MC_FB_START(rdev->mc.vram_start >> 16) |
431 			S_000001_MC_FB_TOP(rdev->mc.vram_end >> 16));
432 	WREG32(R_000134_HDP_FB_LOCATION,
433 		S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
434 	if (rdev->flags & RADEON_IS_AGP) {
435 		WREG32_MC(R_000002_MC_AGP_LOCATION,
436 			S_000002_MC_AGP_START(rdev->mc.gtt_start >> 16) |
437 			S_000002_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
438 		WREG32_MC(R_000003_MC_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
439 		WREG32_MC(R_000004_MC_AGP_BASE_2,
440 			S_000004_AGP_BASE_ADDR_2(upper_32_bits(rdev->mc.agp_base)));
441 	} else {
442 		WREG32_MC(R_000002_MC_AGP_LOCATION, 0xFFFFFFFF);
443 		WREG32_MC(R_000003_MC_AGP_BASE, 0);
444 		WREG32_MC(R_000004_MC_AGP_BASE_2, 0);
445 	}
446 
447 	rv515_mc_resume(rdev, &save);
448 }
449 
450 void rv515_clock_startup(struct radeon_device *rdev)
451 {
452 	if (radeon_dynclks != -1 && radeon_dynclks)
453 		radeon_atom_set_clock_gating(rdev, 1);
454 	/* We need to force on some of the block */
455 	WREG32_PLL(R_00000F_CP_DYN_CNTL,
456 		RREG32_PLL(R_00000F_CP_DYN_CNTL) | S_00000F_CP_FORCEON(1));
457 	WREG32_PLL(R_000011_E2_DYN_CNTL,
458 		RREG32_PLL(R_000011_E2_DYN_CNTL) | S_000011_E2_FORCEON(1));
459 	WREG32_PLL(R_000013_IDCT_DYN_CNTL,
460 		RREG32_PLL(R_000013_IDCT_DYN_CNTL) | S_000013_IDCT_FORCEON(1));
461 }
462 
463 static int rv515_startup(struct radeon_device *rdev)
464 {
465 	int r;
466 
467 	rv515_mc_program(rdev);
468 	/* Resume clock */
469 	rv515_clock_startup(rdev);
470 	/* Initialize GPU configuration (# pipes, ...) */
471 	rv515_gpu_init(rdev);
472 	/* Initialize GART (initialize after TTM so we can allocate
473 	 * memory through TTM but finalize after TTM) */
474 	if (rdev->flags & RADEON_IS_PCIE) {
475 		r = rv370_pcie_gart_enable(rdev);
476 		if (r)
477 			return r;
478 	}
479 	/* Enable IRQ */
480 	rdev->irq.sw_int = true;
481 	r100_irq_set(rdev);
482 	/* 1M ring buffer */
483 	r = r100_cp_init(rdev, 1024 * 1024);
484 	if (r) {
485 		dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
486 		return r;
487 	}
488 	r = r100_wb_init(rdev);
489 	if (r)
490 		dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
491 	r = r100_ib_init(rdev);
492 	if (r) {
493 		dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
494 		return r;
495 	}
496 	return 0;
497 }
498 
499 int rv515_resume(struct radeon_device *rdev)
500 {
501 	/* Make sur GART are not working */
502 	if (rdev->flags & RADEON_IS_PCIE)
503 		rv370_pcie_gart_disable(rdev);
504 	/* Resume clock before doing reset */
505 	rv515_clock_startup(rdev);
506 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
507 	if (radeon_gpu_reset(rdev)) {
508 		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
509 			RREG32(R_000E40_RBBM_STATUS),
510 			RREG32(R_0007C0_CP_STAT));
511 	}
512 	/* post */
513 	atom_asic_init(rdev->mode_info.atom_context);
514 	/* Resume clock after posting */
515 	rv515_clock_startup(rdev);
516 	return rv515_startup(rdev);
517 }
518 
519 int rv515_suspend(struct radeon_device *rdev)
520 {
521 	r100_cp_disable(rdev);
522 	r100_wb_disable(rdev);
523 	r100_irq_disable(rdev);
524 	if (rdev->flags & RADEON_IS_PCIE)
525 		rv370_pcie_gart_disable(rdev);
526 	return 0;
527 }
528 
529 void rv515_set_safe_registers(struct radeon_device *rdev)
530 {
531 	rdev->config.r300.reg_safe_bm = rv515_reg_safe_bm;
532 	rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rv515_reg_safe_bm);
533 }
534 
535 void rv515_fini(struct radeon_device *rdev)
536 {
537 	rv515_suspend(rdev);
538 	r100_cp_fini(rdev);
539 	r100_wb_fini(rdev);
540 	r100_ib_fini(rdev);
541 	radeon_gem_fini(rdev);
542     rv370_pcie_gart_fini(rdev);
543 	radeon_agp_fini(rdev);
544 	radeon_irq_kms_fini(rdev);
545 	radeon_fence_driver_fini(rdev);
546 	radeon_object_fini(rdev);
547 	radeon_atombios_fini(rdev);
548 	kfree(rdev->bios);
549 	rdev->bios = NULL;
550 }
551 
552 int rv515_init(struct radeon_device *rdev)
553 {
554 	int r;
555 
556 	rdev->new_init_path = true;
557 	/* Initialize scratch registers */
558 	radeon_scratch_init(rdev);
559 	/* Initialize surface registers */
560 	radeon_surface_init(rdev);
561 	/* TODO: disable VGA need to use VGA request */
562 	/* BIOS*/
563 	if (!radeon_get_bios(rdev)) {
564 		if (ASIC_IS_AVIVO(rdev))
565 			return -EINVAL;
566 	}
567 	if (rdev->is_atom_bios) {
568 		r = radeon_atombios_init(rdev);
569 		if (r)
570 			return r;
571 	} else {
572 		dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
573 		return -EINVAL;
574 	}
575 	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
576 	if (radeon_gpu_reset(rdev)) {
577 		dev_warn(rdev->dev,
578 			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
579 			RREG32(R_000E40_RBBM_STATUS),
580 			RREG32(R_0007C0_CP_STAT));
581 	}
582 	/* check if cards are posted or not */
583 	if (!radeon_card_posted(rdev) && rdev->bios) {
584 		DRM_INFO("GPU not posted. posting now...\n");
585 		atom_asic_init(rdev->mode_info.atom_context);
586 	}
587 	/* Initialize clocks */
588 	radeon_get_clock_info(rdev->ddev);
589 	/* Get vram informations */
590 	rv515_vram_info(rdev);
591 	/* Initialize memory controller (also test AGP) */
592 	r = r420_mc_init(rdev);
593 	if (r)
594 		return r;
595 	rv515_debugfs(rdev);
596 	/* Fence driver */
597 	r = radeon_fence_driver_init(rdev);
598 	if (r)
599 		return r;
600 	r = radeon_irq_kms_init(rdev);
601 	if (r)
602 		return r;
603 	/* Memory manager */
604 	r = radeon_object_init(rdev);
605 	if (r)
606 		return r;
607 	r = rv370_pcie_gart_init(rdev);
608 	if (r)
609 		return r;
610 	rv515_set_safe_registers(rdev);
611 	rdev->accel_working = true;
612 	r = rv515_startup(rdev);
613 	if (r) {
614 		/* Somethings want wront with the accel init stop accel */
615 		dev_err(rdev->dev, "Disabling GPU acceleration\n");
616 		rv515_suspend(rdev);
617 		r100_cp_fini(rdev);
618 		r100_wb_fini(rdev);
619 		r100_ib_fini(rdev);
620 		rv370_pcie_gart_fini(rdev);
621 		radeon_agp_fini(rdev);
622 		radeon_irq_kms_fini(rdev);
623 		rdev->accel_working = false;
624 	}
625 	return 0;
626 }
627 
628 void atom_rv515_force_tv_scaler(struct radeon_device *rdev, struct radeon_crtc *crtc)
629 {
630 	int index_reg = 0x6578 + crtc->crtc_offset;
631 	int data_reg = 0x657c + crtc->crtc_offset;
632 
633 	WREG32(0x659C + crtc->crtc_offset, 0x0);
634 	WREG32(0x6594 + crtc->crtc_offset, 0x705);
635 	WREG32(0x65A4 + crtc->crtc_offset, 0x10001);
636 	WREG32(0x65D8 + crtc->crtc_offset, 0x0);
637 	WREG32(0x65B0 + crtc->crtc_offset, 0x0);
638 	WREG32(0x65C0 + crtc->crtc_offset, 0x0);
639 	WREG32(0x65D4 + crtc->crtc_offset, 0x0);
640 	WREG32(index_reg, 0x0);
641 	WREG32(data_reg, 0x841880A8);
642 	WREG32(index_reg, 0x1);
643 	WREG32(data_reg, 0x84208680);
644 	WREG32(index_reg, 0x2);
645 	WREG32(data_reg, 0xBFF880B0);
646 	WREG32(index_reg, 0x100);
647 	WREG32(data_reg, 0x83D88088);
648 	WREG32(index_reg, 0x101);
649 	WREG32(data_reg, 0x84608680);
650 	WREG32(index_reg, 0x102);
651 	WREG32(data_reg, 0xBFF080D0);
652 	WREG32(index_reg, 0x200);
653 	WREG32(data_reg, 0x83988068);
654 	WREG32(index_reg, 0x201);
655 	WREG32(data_reg, 0x84A08680);
656 	WREG32(index_reg, 0x202);
657 	WREG32(data_reg, 0xBFF080F8);
658 	WREG32(index_reg, 0x300);
659 	WREG32(data_reg, 0x83588058);
660 	WREG32(index_reg, 0x301);
661 	WREG32(data_reg, 0x84E08660);
662 	WREG32(index_reg, 0x302);
663 	WREG32(data_reg, 0xBFF88120);
664 	WREG32(index_reg, 0x400);
665 	WREG32(data_reg, 0x83188040);
666 	WREG32(index_reg, 0x401);
667 	WREG32(data_reg, 0x85008660);
668 	WREG32(index_reg, 0x402);
669 	WREG32(data_reg, 0xBFF88150);
670 	WREG32(index_reg, 0x500);
671 	WREG32(data_reg, 0x82D88030);
672 	WREG32(index_reg, 0x501);
673 	WREG32(data_reg, 0x85408640);
674 	WREG32(index_reg, 0x502);
675 	WREG32(data_reg, 0xBFF88180);
676 	WREG32(index_reg, 0x600);
677 	WREG32(data_reg, 0x82A08018);
678 	WREG32(index_reg, 0x601);
679 	WREG32(data_reg, 0x85808620);
680 	WREG32(index_reg, 0x602);
681 	WREG32(data_reg, 0xBFF081B8);
682 	WREG32(index_reg, 0x700);
683 	WREG32(data_reg, 0x82608010);
684 	WREG32(index_reg, 0x701);
685 	WREG32(data_reg, 0x85A08600);
686 	WREG32(index_reg, 0x702);
687 	WREG32(data_reg, 0x800081F0);
688 	WREG32(index_reg, 0x800);
689 	WREG32(data_reg, 0x8228BFF8);
690 	WREG32(index_reg, 0x801);
691 	WREG32(data_reg, 0x85E085E0);
692 	WREG32(index_reg, 0x802);
693 	WREG32(data_reg, 0xBFF88228);
694 	WREG32(index_reg, 0x10000);
695 	WREG32(data_reg, 0x82A8BF00);
696 	WREG32(index_reg, 0x10001);
697 	WREG32(data_reg, 0x82A08CC0);
698 	WREG32(index_reg, 0x10002);
699 	WREG32(data_reg, 0x8008BEF8);
700 	WREG32(index_reg, 0x10100);
701 	WREG32(data_reg, 0x81F0BF28);
702 	WREG32(index_reg, 0x10101);
703 	WREG32(data_reg, 0x83608CA0);
704 	WREG32(index_reg, 0x10102);
705 	WREG32(data_reg, 0x8018BED0);
706 	WREG32(index_reg, 0x10200);
707 	WREG32(data_reg, 0x8148BF38);
708 	WREG32(index_reg, 0x10201);
709 	WREG32(data_reg, 0x84408C80);
710 	WREG32(index_reg, 0x10202);
711 	WREG32(data_reg, 0x8008BEB8);
712 	WREG32(index_reg, 0x10300);
713 	WREG32(data_reg, 0x80B0BF78);
714 	WREG32(index_reg, 0x10301);
715 	WREG32(data_reg, 0x85008C20);
716 	WREG32(index_reg, 0x10302);
717 	WREG32(data_reg, 0x8020BEA0);
718 	WREG32(index_reg, 0x10400);
719 	WREG32(data_reg, 0x8028BF90);
720 	WREG32(index_reg, 0x10401);
721 	WREG32(data_reg, 0x85E08BC0);
722 	WREG32(index_reg, 0x10402);
723 	WREG32(data_reg, 0x8018BE90);
724 	WREG32(index_reg, 0x10500);
725 	WREG32(data_reg, 0xBFB8BFB0);
726 	WREG32(index_reg, 0x10501);
727 	WREG32(data_reg, 0x86C08B40);
728 	WREG32(index_reg, 0x10502);
729 	WREG32(data_reg, 0x8010BE90);
730 	WREG32(index_reg, 0x10600);
731 	WREG32(data_reg, 0xBF58BFC8);
732 	WREG32(index_reg, 0x10601);
733 	WREG32(data_reg, 0x87A08AA0);
734 	WREG32(index_reg, 0x10602);
735 	WREG32(data_reg, 0x8010BE98);
736 	WREG32(index_reg, 0x10700);
737 	WREG32(data_reg, 0xBF10BFF0);
738 	WREG32(index_reg, 0x10701);
739 	WREG32(data_reg, 0x886089E0);
740 	WREG32(index_reg, 0x10702);
741 	WREG32(data_reg, 0x8018BEB0);
742 	WREG32(index_reg, 0x10800);
743 	WREG32(data_reg, 0xBED8BFE8);
744 	WREG32(index_reg, 0x10801);
745 	WREG32(data_reg, 0x89408940);
746 	WREG32(index_reg, 0x10802);
747 	WREG32(data_reg, 0xBFE8BED8);
748 	WREG32(index_reg, 0x20000);
749 	WREG32(data_reg, 0x80008000);
750 	WREG32(index_reg, 0x20001);
751 	WREG32(data_reg, 0x90008000);
752 	WREG32(index_reg, 0x20002);
753 	WREG32(data_reg, 0x80008000);
754 	WREG32(index_reg, 0x20003);
755 	WREG32(data_reg, 0x80008000);
756 	WREG32(index_reg, 0x20100);
757 	WREG32(data_reg, 0x80108000);
758 	WREG32(index_reg, 0x20101);
759 	WREG32(data_reg, 0x8FE0BF70);
760 	WREG32(index_reg, 0x20102);
761 	WREG32(data_reg, 0xBFE880C0);
762 	WREG32(index_reg, 0x20103);
763 	WREG32(data_reg, 0x80008000);
764 	WREG32(index_reg, 0x20200);
765 	WREG32(data_reg, 0x8018BFF8);
766 	WREG32(index_reg, 0x20201);
767 	WREG32(data_reg, 0x8F80BF08);
768 	WREG32(index_reg, 0x20202);
769 	WREG32(data_reg, 0xBFD081A0);
770 	WREG32(index_reg, 0x20203);
771 	WREG32(data_reg, 0xBFF88000);
772 	WREG32(index_reg, 0x20300);
773 	WREG32(data_reg, 0x80188000);
774 	WREG32(index_reg, 0x20301);
775 	WREG32(data_reg, 0x8EE0BEC0);
776 	WREG32(index_reg, 0x20302);
777 	WREG32(data_reg, 0xBFB082A0);
778 	WREG32(index_reg, 0x20303);
779 	WREG32(data_reg, 0x80008000);
780 	WREG32(index_reg, 0x20400);
781 	WREG32(data_reg, 0x80188000);
782 	WREG32(index_reg, 0x20401);
783 	WREG32(data_reg, 0x8E00BEA0);
784 	WREG32(index_reg, 0x20402);
785 	WREG32(data_reg, 0xBF8883C0);
786 	WREG32(index_reg, 0x20403);
787 	WREG32(data_reg, 0x80008000);
788 	WREG32(index_reg, 0x20500);
789 	WREG32(data_reg, 0x80188000);
790 	WREG32(index_reg, 0x20501);
791 	WREG32(data_reg, 0x8D00BE90);
792 	WREG32(index_reg, 0x20502);
793 	WREG32(data_reg, 0xBF588500);
794 	WREG32(index_reg, 0x20503);
795 	WREG32(data_reg, 0x80008008);
796 	WREG32(index_reg, 0x20600);
797 	WREG32(data_reg, 0x80188000);
798 	WREG32(index_reg, 0x20601);
799 	WREG32(data_reg, 0x8BC0BE98);
800 	WREG32(index_reg, 0x20602);
801 	WREG32(data_reg, 0xBF308660);
802 	WREG32(index_reg, 0x20603);
803 	WREG32(data_reg, 0x80008008);
804 	WREG32(index_reg, 0x20700);
805 	WREG32(data_reg, 0x80108000);
806 	WREG32(index_reg, 0x20701);
807 	WREG32(data_reg, 0x8A80BEB0);
808 	WREG32(index_reg, 0x20702);
809 	WREG32(data_reg, 0xBF0087C0);
810 	WREG32(index_reg, 0x20703);
811 	WREG32(data_reg, 0x80008008);
812 	WREG32(index_reg, 0x20800);
813 	WREG32(data_reg, 0x80108000);
814 	WREG32(index_reg, 0x20801);
815 	WREG32(data_reg, 0x8920BED0);
816 	WREG32(index_reg, 0x20802);
817 	WREG32(data_reg, 0xBED08920);
818 	WREG32(index_reg, 0x20803);
819 	WREG32(data_reg, 0x80008010);
820 	WREG32(index_reg, 0x30000);
821 	WREG32(data_reg, 0x90008000);
822 	WREG32(index_reg, 0x30001);
823 	WREG32(data_reg, 0x80008000);
824 	WREG32(index_reg, 0x30100);
825 	WREG32(data_reg, 0x8FE0BF90);
826 	WREG32(index_reg, 0x30101);
827 	WREG32(data_reg, 0xBFF880A0);
828 	WREG32(index_reg, 0x30200);
829 	WREG32(data_reg, 0x8F60BF40);
830 	WREG32(index_reg, 0x30201);
831 	WREG32(data_reg, 0xBFE88180);
832 	WREG32(index_reg, 0x30300);
833 	WREG32(data_reg, 0x8EC0BF00);
834 	WREG32(index_reg, 0x30301);
835 	WREG32(data_reg, 0xBFC88280);
836 	WREG32(index_reg, 0x30400);
837 	WREG32(data_reg, 0x8DE0BEE0);
838 	WREG32(index_reg, 0x30401);
839 	WREG32(data_reg, 0xBFA083A0);
840 	WREG32(index_reg, 0x30500);
841 	WREG32(data_reg, 0x8CE0BED0);
842 	WREG32(index_reg, 0x30501);
843 	WREG32(data_reg, 0xBF7884E0);
844 	WREG32(index_reg, 0x30600);
845 	WREG32(data_reg, 0x8BA0BED8);
846 	WREG32(index_reg, 0x30601);
847 	WREG32(data_reg, 0xBF508640);
848 	WREG32(index_reg, 0x30700);
849 	WREG32(data_reg, 0x8A60BEE8);
850 	WREG32(index_reg, 0x30701);
851 	WREG32(data_reg, 0xBF2087A0);
852 	WREG32(index_reg, 0x30800);
853 	WREG32(data_reg, 0x8900BF00);
854 	WREG32(index_reg, 0x30801);
855 	WREG32(data_reg, 0xBF008900);
856 }
857 
858 struct rv515_watermark {
859 	u32        lb_request_fifo_depth;
860 	fixed20_12 num_line_pair;
861 	fixed20_12 estimated_width;
862 	fixed20_12 worst_case_latency;
863 	fixed20_12 consumption_rate;
864 	fixed20_12 active_time;
865 	fixed20_12 dbpp;
866 	fixed20_12 priority_mark_max;
867 	fixed20_12 priority_mark;
868 	fixed20_12 sclk;
869 };
870 
871 void rv515_crtc_bandwidth_compute(struct radeon_device *rdev,
872 				  struct radeon_crtc *crtc,
873 				  struct rv515_watermark *wm)
874 {
875 	struct drm_display_mode *mode = &crtc->base.mode;
876 	fixed20_12 a, b, c;
877 	fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
878 	fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
879 
880 	if (!crtc->base.enabled) {
881 		/* FIXME: wouldn't it better to set priority mark to maximum */
882 		wm->lb_request_fifo_depth = 4;
883 		return;
884 	}
885 
886 	if (crtc->vsc.full > rfixed_const(2))
887 		wm->num_line_pair.full = rfixed_const(2);
888 	else
889 		wm->num_line_pair.full = rfixed_const(1);
890 
891 	b.full = rfixed_const(mode->crtc_hdisplay);
892 	c.full = rfixed_const(256);
893 	a.full = rfixed_mul(wm->num_line_pair, b);
894 	request_fifo_depth.full = rfixed_div(a, c);
895 	if (a.full < rfixed_const(4)) {
896 		wm->lb_request_fifo_depth = 4;
897 	} else {
898 		wm->lb_request_fifo_depth = rfixed_trunc(request_fifo_depth);
899 	}
900 
901 	/* Determine consumption rate
902 	 *  pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
903 	 *  vtaps = number of vertical taps,
904 	 *  vsc = vertical scaling ratio, defined as source/destination
905 	 *  hsc = horizontal scaling ration, defined as source/destination
906 	 */
907 	a.full = rfixed_const(mode->clock);
908 	b.full = rfixed_const(1000);
909 	a.full = rfixed_div(a, b);
910 	pclk.full = rfixed_div(b, a);
911 	if (crtc->rmx_type != RMX_OFF) {
912 		b.full = rfixed_const(2);
913 		if (crtc->vsc.full > b.full)
914 			b.full = crtc->vsc.full;
915 		b.full = rfixed_mul(b, crtc->hsc);
916 		c.full = rfixed_const(2);
917 		b.full = rfixed_div(b, c);
918 		consumption_time.full = rfixed_div(pclk, b);
919 	} else {
920 		consumption_time.full = pclk.full;
921 	}
922 	a.full = rfixed_const(1);
923 	wm->consumption_rate.full = rfixed_div(a, consumption_time);
924 
925 
926 	/* Determine line time
927 	 *  LineTime = total time for one line of displayhtotal
928 	 *  LineTime = total number of horizontal pixels
929 	 *  pclk = pixel clock period(ns)
930 	 */
931 	a.full = rfixed_const(crtc->base.mode.crtc_htotal);
932 	line_time.full = rfixed_mul(a, pclk);
933 
934 	/* Determine active time
935 	 *  ActiveTime = time of active region of display within one line,
936 	 *  hactive = total number of horizontal active pixels
937 	 *  htotal = total number of horizontal pixels
938 	 */
939 	a.full = rfixed_const(crtc->base.mode.crtc_htotal);
940 	b.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
941 	wm->active_time.full = rfixed_mul(line_time, b);
942 	wm->active_time.full = rfixed_div(wm->active_time, a);
943 
944 	/* Determine chunk time
945 	 * ChunkTime = the time it takes the DCP to send one chunk of data
946 	 * to the LB which consists of pipeline delay and inter chunk gap
947 	 * sclk = system clock(Mhz)
948 	 */
949 	a.full = rfixed_const(600 * 1000);
950 	chunk_time.full = rfixed_div(a, rdev->pm.sclk);
951 	read_delay_latency.full = rfixed_const(1000);
952 
953 	/* Determine the worst case latency
954 	 * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
955 	 * WorstCaseLatency = worst case time from urgent to when the MC starts
956 	 *                    to return data
957 	 * READ_DELAY_IDLE_MAX = constant of 1us
958 	 * ChunkTime = time it takes the DCP to send one chunk of data to the LB
959 	 *             which consists of pipeline delay and inter chunk gap
960 	 */
961 	if (rfixed_trunc(wm->num_line_pair) > 1) {
962 		a.full = rfixed_const(3);
963 		wm->worst_case_latency.full = rfixed_mul(a, chunk_time);
964 		wm->worst_case_latency.full += read_delay_latency.full;
965 	} else {
966 		wm->worst_case_latency.full = chunk_time.full + read_delay_latency.full;
967 	}
968 
969 	/* Determine the tolerable latency
970 	 * TolerableLatency = Any given request has only 1 line time
971 	 *                    for the data to be returned
972 	 * LBRequestFifoDepth = Number of chunk requests the LB can
973 	 *                      put into the request FIFO for a display
974 	 *  LineTime = total time for one line of display
975 	 *  ChunkTime = the time it takes the DCP to send one chunk
976 	 *              of data to the LB which consists of
977 	 *  pipeline delay and inter chunk gap
978 	 */
979 	if ((2+wm->lb_request_fifo_depth) >= rfixed_trunc(request_fifo_depth)) {
980 		tolerable_latency.full = line_time.full;
981 	} else {
982 		tolerable_latency.full = rfixed_const(wm->lb_request_fifo_depth - 2);
983 		tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
984 		tolerable_latency.full = rfixed_mul(tolerable_latency, chunk_time);
985 		tolerable_latency.full = line_time.full - tolerable_latency.full;
986 	}
987 	/* We assume worst case 32bits (4 bytes) */
988 	wm->dbpp.full = rfixed_const(2 * 16);
989 
990 	/* Determine the maximum priority mark
991 	 *  width = viewport width in pixels
992 	 */
993 	a.full = rfixed_const(16);
994 	wm->priority_mark_max.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
995 	wm->priority_mark_max.full = rfixed_div(wm->priority_mark_max, a);
996 
997 	/* Determine estimated width */
998 	estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
999 	estimated_width.full = rfixed_div(estimated_width, consumption_time);
1000 	if (rfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
1001 		wm->priority_mark.full = rfixed_const(10);
1002 	} else {
1003 		a.full = rfixed_const(16);
1004 		wm->priority_mark.full = rfixed_div(estimated_width, a);
1005 		wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
1006 	}
1007 }
1008 
1009 void rv515_bandwidth_avivo_update(struct radeon_device *rdev)
1010 {
1011 	struct drm_display_mode *mode0 = NULL;
1012 	struct drm_display_mode *mode1 = NULL;
1013 	struct rv515_watermark wm0;
1014 	struct rv515_watermark wm1;
1015 	u32 tmp;
1016 	fixed20_12 priority_mark02, priority_mark12, fill_rate;
1017 	fixed20_12 a, b;
1018 
1019 	if (rdev->mode_info.crtcs[0]->base.enabled)
1020 		mode0 = &rdev->mode_info.crtcs[0]->base.mode;
1021 	if (rdev->mode_info.crtcs[1]->base.enabled)
1022 		mode1 = &rdev->mode_info.crtcs[1]->base.mode;
1023 	rs690_line_buffer_adjust(rdev, mode0, mode1);
1024 
1025 	rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0);
1026 	rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1);
1027 
1028 	tmp = wm0.lb_request_fifo_depth;
1029 	tmp |= wm1.lb_request_fifo_depth << 16;
1030 	WREG32(LB_MAX_REQ_OUTSTANDING, tmp);
1031 
1032 	if (mode0 && mode1) {
1033 		if (rfixed_trunc(wm0.dbpp) > 64)
1034 			a.full = rfixed_div(wm0.dbpp, wm0.num_line_pair);
1035 		else
1036 			a.full = wm0.num_line_pair.full;
1037 		if (rfixed_trunc(wm1.dbpp) > 64)
1038 			b.full = rfixed_div(wm1.dbpp, wm1.num_line_pair);
1039 		else
1040 			b.full = wm1.num_line_pair.full;
1041 		a.full += b.full;
1042 		fill_rate.full = rfixed_div(wm0.sclk, a);
1043 		if (wm0.consumption_rate.full > fill_rate.full) {
1044 			b.full = wm0.consumption_rate.full - fill_rate.full;
1045 			b.full = rfixed_mul(b, wm0.active_time);
1046 			a.full = rfixed_const(16);
1047 			b.full = rfixed_div(b, a);
1048 			a.full = rfixed_mul(wm0.worst_case_latency,
1049 						wm0.consumption_rate);
1050 			priority_mark02.full = a.full + b.full;
1051 		} else {
1052 			a.full = rfixed_mul(wm0.worst_case_latency,
1053 						wm0.consumption_rate);
1054 			b.full = rfixed_const(16 * 1000);
1055 			priority_mark02.full = rfixed_div(a, b);
1056 		}
1057 		if (wm1.consumption_rate.full > fill_rate.full) {
1058 			b.full = wm1.consumption_rate.full - fill_rate.full;
1059 			b.full = rfixed_mul(b, wm1.active_time);
1060 			a.full = rfixed_const(16);
1061 			b.full = rfixed_div(b, a);
1062 			a.full = rfixed_mul(wm1.worst_case_latency,
1063 						wm1.consumption_rate);
1064 			priority_mark12.full = a.full + b.full;
1065 		} else {
1066 			a.full = rfixed_mul(wm1.worst_case_latency,
1067 						wm1.consumption_rate);
1068 			b.full = rfixed_const(16 * 1000);
1069 			priority_mark12.full = rfixed_div(a, b);
1070 		}
1071 		if (wm0.priority_mark.full > priority_mark02.full)
1072 			priority_mark02.full = wm0.priority_mark.full;
1073 		if (rfixed_trunc(priority_mark02) < 0)
1074 			priority_mark02.full = 0;
1075 		if (wm0.priority_mark_max.full > priority_mark02.full)
1076 			priority_mark02.full = wm0.priority_mark_max.full;
1077 		if (wm1.priority_mark.full > priority_mark12.full)
1078 			priority_mark12.full = wm1.priority_mark.full;
1079 		if (rfixed_trunc(priority_mark12) < 0)
1080 			priority_mark12.full = 0;
1081 		if (wm1.priority_mark_max.full > priority_mark12.full)
1082 			priority_mark12.full = wm1.priority_mark_max.full;
1083 		WREG32(D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
1084 		WREG32(D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
1085 		WREG32(D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
1086 		WREG32(D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
1087 	} else if (mode0) {
1088 		if (rfixed_trunc(wm0.dbpp) > 64)
1089 			a.full = rfixed_div(wm0.dbpp, wm0.num_line_pair);
1090 		else
1091 			a.full = wm0.num_line_pair.full;
1092 		fill_rate.full = rfixed_div(wm0.sclk, a);
1093 		if (wm0.consumption_rate.full > fill_rate.full) {
1094 			b.full = wm0.consumption_rate.full - fill_rate.full;
1095 			b.full = rfixed_mul(b, wm0.active_time);
1096 			a.full = rfixed_const(16);
1097 			b.full = rfixed_div(b, a);
1098 			a.full = rfixed_mul(wm0.worst_case_latency,
1099 						wm0.consumption_rate);
1100 			priority_mark02.full = a.full + b.full;
1101 		} else {
1102 			a.full = rfixed_mul(wm0.worst_case_latency,
1103 						wm0.consumption_rate);
1104 			b.full = rfixed_const(16);
1105 			priority_mark02.full = rfixed_div(a, b);
1106 		}
1107 		if (wm0.priority_mark.full > priority_mark02.full)
1108 			priority_mark02.full = wm0.priority_mark.full;
1109 		if (rfixed_trunc(priority_mark02) < 0)
1110 			priority_mark02.full = 0;
1111 		if (wm0.priority_mark_max.full > priority_mark02.full)
1112 			priority_mark02.full = wm0.priority_mark_max.full;
1113 		WREG32(D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
1114 		WREG32(D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
1115 		WREG32(D2MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF);
1116 		WREG32(D2MODE_PRIORITY_B_CNT, MODE_PRIORITY_OFF);
1117 	} else {
1118 		if (rfixed_trunc(wm1.dbpp) > 64)
1119 			a.full = rfixed_div(wm1.dbpp, wm1.num_line_pair);
1120 		else
1121 			a.full = wm1.num_line_pair.full;
1122 		fill_rate.full = rfixed_div(wm1.sclk, a);
1123 		if (wm1.consumption_rate.full > fill_rate.full) {
1124 			b.full = wm1.consumption_rate.full - fill_rate.full;
1125 			b.full = rfixed_mul(b, wm1.active_time);
1126 			a.full = rfixed_const(16);
1127 			b.full = rfixed_div(b, a);
1128 			a.full = rfixed_mul(wm1.worst_case_latency,
1129 						wm1.consumption_rate);
1130 			priority_mark12.full = a.full + b.full;
1131 		} else {
1132 			a.full = rfixed_mul(wm1.worst_case_latency,
1133 						wm1.consumption_rate);
1134 			b.full = rfixed_const(16 * 1000);
1135 			priority_mark12.full = rfixed_div(a, b);
1136 		}
1137 		if (wm1.priority_mark.full > priority_mark12.full)
1138 			priority_mark12.full = wm1.priority_mark.full;
1139 		if (rfixed_trunc(priority_mark12) < 0)
1140 			priority_mark12.full = 0;
1141 		if (wm1.priority_mark_max.full > priority_mark12.full)
1142 			priority_mark12.full = wm1.priority_mark_max.full;
1143 		WREG32(D1MODE_PRIORITY_A_CNT, MODE_PRIORITY_OFF);
1144 		WREG32(D1MODE_PRIORITY_B_CNT, MODE_PRIORITY_OFF);
1145 		WREG32(D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
1146 		WREG32(D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
1147 	}
1148 }
1149 
1150 void rv515_bandwidth_update(struct radeon_device *rdev)
1151 {
1152 	uint32_t tmp;
1153 	struct drm_display_mode *mode0 = NULL;
1154 	struct drm_display_mode *mode1 = NULL;
1155 
1156 	if (rdev->mode_info.crtcs[0]->base.enabled)
1157 		mode0 = &rdev->mode_info.crtcs[0]->base.mode;
1158 	if (rdev->mode_info.crtcs[1]->base.enabled)
1159 		mode1 = &rdev->mode_info.crtcs[1]->base.mode;
1160 	/*
1161 	 * Set display0/1 priority up in the memory controller for
1162 	 * modes if the user specifies HIGH for displaypriority
1163 	 * option.
1164 	 */
1165 	if (rdev->disp_priority == 2) {
1166 		tmp = RREG32_MC(MC_MISC_LAT_TIMER);
1167 		tmp &= ~MC_DISP1R_INIT_LAT_MASK;
1168 		tmp &= ~MC_DISP0R_INIT_LAT_MASK;
1169 		if (mode1)
1170 			tmp |= (1 << MC_DISP1R_INIT_LAT_SHIFT);
1171 		if (mode0)
1172 			tmp |= (1 << MC_DISP0R_INIT_LAT_SHIFT);
1173 		WREG32_MC(MC_MISC_LAT_TIMER, tmp);
1174 	}
1175 	rv515_bandwidth_avivo_update(rdev);
1176 }
1177