1/*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 * Copyright 2009 Jerome Glisse.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 *          Alex Deucher
26 *          Jerome Glisse
27 */
28
29#include <linux/seq_file.h>
30#include <linux/slab.h>
31
32#include <drm/drm_debugfs.h>
33#include <drm/drm_device.h>
34#include <drm/drm_file.h>
35
36#include "atom.h"
37#include "radeon.h"
38#include "radeon_asic.h"
39#include "rv515_reg_safe.h"
40#include "rv515d.h"
41
42/* This files gather functions specifics to: rv515 */
43static int rv515_debugfs_pipes_info_init(struct radeon_device *rdev);
44static int rv515_debugfs_ga_info_init(struct radeon_device *rdev);
45static void rv515_gpu_init(struct radeon_device *rdev);
46int rv515_mc_wait_for_idle(struct radeon_device *rdev);
47
48static const u32 crtc_offsets[2] =
49{
50	0,
51	AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
52};
53
54void rv515_debugfs(struct radeon_device *rdev)
55{
56	if (r100_debugfs_rbbm_init(rdev)) {
57		DRM_ERROR("Failed to register debugfs file for RBBM !\n");
58	}
59	if (rv515_debugfs_pipes_info_init(rdev)) {
60		DRM_ERROR("Failed to register debugfs file for pipes !\n");
61	}
62	if (rv515_debugfs_ga_info_init(rdev)) {
63		DRM_ERROR("Failed to register debugfs file for pipes !\n");
64	}
65}
66
67void rv515_ring_start(struct radeon_device *rdev, struct radeon_ring *ring)
68{
69	int r;
70
71	r = radeon_ring_lock(rdev, ring, 64);
72	if (r) {
73		return;
74	}
75	radeon_ring_write(ring, PACKET0(ISYNC_CNTL, 0));
76	radeon_ring_write(ring,
77			  ISYNC_ANY2D_IDLE3D |
78			  ISYNC_ANY3D_IDLE2D |
79			  ISYNC_WAIT_IDLEGUI |
80			  ISYNC_CPSCRATCH_IDLEGUI);
81	radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0));
82	radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
83	radeon_ring_write(ring, PACKET0(R300_DST_PIPE_CONFIG, 0));
84	radeon_ring_write(ring, R300_PIPE_AUTO_CONFIG);
85	radeon_ring_write(ring, PACKET0(GB_SELECT, 0));
86	radeon_ring_write(ring, 0);
87	radeon_ring_write(ring, PACKET0(GB_ENABLE, 0));
88	radeon_ring_write(ring, 0);
89	radeon_ring_write(ring, PACKET0(R500_SU_REG_DEST, 0));
90	radeon_ring_write(ring, (1 << rdev->num_gb_pipes) - 1);
91	radeon_ring_write(ring, PACKET0(VAP_INDEX_OFFSET, 0));
92	radeon_ring_write(ring, 0);
93	radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
94	radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE);
95	radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
96	radeon_ring_write(ring, ZC_FLUSH | ZC_FREE);
97	radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0));
98	radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
99	radeon_ring_write(ring, PACKET0(GB_AA_CONFIG, 0));
100	radeon_ring_write(ring, 0);
101	radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
102	radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE);
103	radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
104	radeon_ring_write(ring, ZC_FLUSH | ZC_FREE);
105	radeon_ring_write(ring, PACKET0(GB_MSPOS0, 0));
106	radeon_ring_write(ring,
107			  ((6 << MS_X0_SHIFT) |
108			   (6 << MS_Y0_SHIFT) |
109			   (6 << MS_X1_SHIFT) |
110			   (6 << MS_Y1_SHIFT) |
111			   (6 << MS_X2_SHIFT) |
112			   (6 << MS_Y2_SHIFT) |
113			   (6 << MSBD0_Y_SHIFT) |
114			   (6 << MSBD0_X_SHIFT)));
115	radeon_ring_write(ring, PACKET0(GB_MSPOS1, 0));
116	radeon_ring_write(ring,
117			  ((6 << MS_X3_SHIFT) |
118			   (6 << MS_Y3_SHIFT) |
119			   (6 << MS_X4_SHIFT) |
120			   (6 << MS_Y4_SHIFT) |
121			   (6 << MS_X5_SHIFT) |
122			   (6 << MS_Y5_SHIFT) |
123			   (6 << MSBD1_SHIFT)));
124	radeon_ring_write(ring, PACKET0(GA_ENHANCE, 0));
125	radeon_ring_write(ring, GA_DEADLOCK_CNTL | GA_FASTSYNC_CNTL);
126	radeon_ring_write(ring, PACKET0(GA_POLY_MODE, 0));
127	radeon_ring_write(ring, FRONT_PTYPE_TRIANGE | BACK_PTYPE_TRIANGE);
128	radeon_ring_write(ring, PACKET0(GA_ROUND_MODE, 0));
129	radeon_ring_write(ring, GEOMETRY_ROUND_NEAREST | COLOR_ROUND_NEAREST);
130	radeon_ring_write(ring, PACKET0(0x20C8, 0));
131	radeon_ring_write(ring, 0);
132	radeon_ring_unlock_commit(rdev, ring, false);
133}
134
135int rv515_mc_wait_for_idle(struct radeon_device *rdev)
136{
137	unsigned i;
138	uint32_t tmp;
139
140	for (i = 0; i < rdev->usec_timeout; i++) {
141		/* read MC_STATUS */
142		tmp = RREG32_MC(MC_STATUS);
143		if (tmp & MC_STATUS_IDLE) {
144			return 0;
145		}
146		udelay(1);
147	}
148	return -1;
149}
150
151void rv515_vga_render_disable(struct radeon_device *rdev)
152{
153	WREG32(R_000300_VGA_RENDER_CONTROL,
154		RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL);
155}
156
157static void rv515_gpu_init(struct radeon_device *rdev)
158{
159	unsigned pipe_select_current, gb_pipe_select, tmp;
160
161	if (r100_gui_wait_for_idle(rdev)) {
162		pr_warn("Failed to wait GUI idle while resetting GPU. Bad things might happen.\n");
163	}
164	rv515_vga_render_disable(rdev);
165	r420_pipes_init(rdev);
166	gb_pipe_select = RREG32(R400_GB_PIPE_SELECT);
167	tmp = RREG32(R300_DST_PIPE_CONFIG);
168	pipe_select_current = (tmp >> 2) & 3;
169	tmp = (1 << pipe_select_current) |
170	      (((gb_pipe_select >> 8) & 0xF) << 4);
171	WREG32_PLL(0x000D, tmp);
172	if (r100_gui_wait_for_idle(rdev)) {
173		pr_warn("Failed to wait GUI idle while resetting GPU. Bad things might happen.\n");
174	}
175	if (rv515_mc_wait_for_idle(rdev)) {
176		pr_warn("Failed to wait MC idle while programming pipes. Bad things might happen.\n");
177	}
178}
179
180static void rv515_vram_get_type(struct radeon_device *rdev)
181{
182	uint32_t tmp;
183
184	rdev->mc.vram_width = 128;
185	rdev->mc.vram_is_ddr = true;
186	tmp = RREG32_MC(RV515_MC_CNTL) & MEM_NUM_CHANNELS_MASK;
187	switch (tmp) {
188	case 0:
189		rdev->mc.vram_width = 64;
190		break;
191	case 1:
192		rdev->mc.vram_width = 128;
193		break;
194	default:
195		rdev->mc.vram_width = 128;
196		break;
197	}
198}
199
200static void rv515_mc_init(struct radeon_device *rdev)
201{
202
203	rv515_vram_get_type(rdev);
204	r100_vram_init_sizes(rdev);
205	radeon_vram_location(rdev, &rdev->mc, 0);
206	rdev->mc.gtt_base_align = 0;
207	if (!(rdev->flags & RADEON_IS_AGP))
208		radeon_gtt_location(rdev, &rdev->mc);
209	radeon_update_bandwidth_info(rdev);
210}
211
212uint32_t rv515_mc_rreg(struct radeon_device *rdev, uint32_t reg)
213{
214	unsigned long flags;
215	uint32_t r;
216
217	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
218	WREG32(MC_IND_INDEX, 0x7f0000 | (reg & 0xffff));
219	r = RREG32(MC_IND_DATA);
220	WREG32(MC_IND_INDEX, 0);
221	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
222
223	return r;
224}
225
226void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
227{
228	unsigned long flags;
229
230	spin_lock_irqsave(&rdev->mc_idx_lock, flags);
231	WREG32(MC_IND_INDEX, 0xff0000 | ((reg) & 0xffff));
232	WREG32(MC_IND_DATA, (v));
233	WREG32(MC_IND_INDEX, 0);
234	spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
235}
236
237#if defined(CONFIG_DEBUG_FS)
238static int rv515_debugfs_pipes_info(struct seq_file *m, void *data)
239{
240	struct drm_info_node *node = (struct drm_info_node *) m->private;
241	struct drm_device *dev = node->minor->dev;
242	struct radeon_device *rdev = dev->dev_private;
243	uint32_t tmp;
244
245	tmp = RREG32(GB_PIPE_SELECT);
246	seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp);
247	tmp = RREG32(SU_REG_DEST);
248	seq_printf(m, "SU_REG_DEST 0x%08x\n", tmp);
249	tmp = RREG32(GB_TILE_CONFIG);
250	seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp);
251	tmp = RREG32(DST_PIPE_CONFIG);
252	seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp);
253	return 0;
254}
255
256static int rv515_debugfs_ga_info(struct seq_file *m, void *data)
257{
258	struct drm_info_node *node = (struct drm_info_node *) m->private;
259	struct drm_device *dev = node->minor->dev;
260	struct radeon_device *rdev = dev->dev_private;
261	uint32_t tmp;
262
263	tmp = RREG32(0x2140);
264	seq_printf(m, "VAP_CNTL_STATUS 0x%08x\n", tmp);
265	radeon_asic_reset(rdev);
266	tmp = RREG32(0x425C);
267	seq_printf(m, "GA_IDLE 0x%08x\n", tmp);
268	return 0;
269}
270
271static struct drm_info_list rv515_pipes_info_list[] = {
272	{"rv515_pipes_info", rv515_debugfs_pipes_info, 0, NULL},
273};
274
275static struct drm_info_list rv515_ga_info_list[] = {
276	{"rv515_ga_info", rv515_debugfs_ga_info, 0, NULL},
277};
278#endif
279
280static int rv515_debugfs_pipes_info_init(struct radeon_device *rdev)
281{
282#if defined(CONFIG_DEBUG_FS)
283	return radeon_debugfs_add_files(rdev, rv515_pipes_info_list, 1);
284#else
285	return 0;
286#endif
287}
288
289static int rv515_debugfs_ga_info_init(struct radeon_device *rdev)
290{
291#if defined(CONFIG_DEBUG_FS)
292	return radeon_debugfs_add_files(rdev, rv515_ga_info_list, 1);
293#else
294	return 0;
295#endif
296}
297
298void rv515_mc_stop(struct radeon_device *rdev, struct rv515_mc_save *save)
299{
300	u32 crtc_enabled, tmp, frame_count, blackout;
301	int i, j;
302
303	save->vga_render_control = RREG32(R_000300_VGA_RENDER_CONTROL);
304	save->vga_hdp_control = RREG32(R_000328_VGA_HDP_CONTROL);
305
306	/* disable VGA render */
307	WREG32(R_000300_VGA_RENDER_CONTROL, 0);
308	/* blank the display controllers */
309	for (i = 0; i < rdev->num_crtc; i++) {
310		crtc_enabled = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]) & AVIVO_CRTC_EN;
311		if (crtc_enabled) {
312			save->crtc_enabled[i] = true;
313			tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]);
314			if (!(tmp & AVIVO_CRTC_DISP_READ_REQUEST_DISABLE)) {
315				radeon_wait_for_vblank(rdev, i);
316				WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
317				tmp |= AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
318				WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp);
319				WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
320			}
321			/* wait for the next frame */
322			frame_count = radeon_get_vblank_counter(rdev, i);
323			for (j = 0; j < rdev->usec_timeout; j++) {
324				if (radeon_get_vblank_counter(rdev, i) != frame_count)
325					break;
326				udelay(1);
327			}
328
329			/* XXX this is a hack to avoid strange behavior with EFI on certain systems */
330			WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
331			tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]);
332			tmp &= ~AVIVO_CRTC_EN;
333			WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp);
334			WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
335			save->crtc_enabled[i] = false;
336			/* ***** */
337		} else {
338			save->crtc_enabled[i] = false;
339		}
340	}
341
342	radeon_mc_wait_for_idle(rdev);
343
344	if (rdev->family >= CHIP_R600) {
345		if (rdev->family >= CHIP_RV770)
346			blackout = RREG32(R700_MC_CITF_CNTL);
347		else
348			blackout = RREG32(R600_CITF_CNTL);
349		if ((blackout & R600_BLACKOUT_MASK) != R600_BLACKOUT_MASK) {
350			/* Block CPU access */
351			WREG32(R600_BIF_FB_EN, 0);
352			/* blackout the MC */
353			blackout |= R600_BLACKOUT_MASK;
354			if (rdev->family >= CHIP_RV770)
355				WREG32(R700_MC_CITF_CNTL, blackout);
356			else
357				WREG32(R600_CITF_CNTL, blackout);
358		}
359	}
360	/* wait for the MC to settle */
361	udelay(100);
362
363	/* lock double buffered regs */
364	for (i = 0; i < rdev->num_crtc; i++) {
365		if (save->crtc_enabled[i]) {
366			tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]);
367			if (!(tmp & AVIVO_D1GRPH_UPDATE_LOCK)) {
368				tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
369				WREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i], tmp);
370			}
371			tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i]);
372			if (!(tmp & 1)) {
373				tmp |= 1;
374				WREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
375			}
376		}
377	}
378}
379
380void rv515_mc_resume(struct radeon_device *rdev, struct rv515_mc_save *save)
381{
382	u32 tmp, frame_count;
383	int i, j;
384
385	/* update crtc base addresses */
386	for (i = 0; i < rdev->num_crtc; i++) {
387		if (rdev->family >= CHIP_RV770) {
388			if (i == 0) {
389				WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH,
390				       upper_32_bits(rdev->mc.vram_start));
391				WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH,
392				       upper_32_bits(rdev->mc.vram_start));
393			} else {
394				WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH,
395				       upper_32_bits(rdev->mc.vram_start));
396				WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH,
397				       upper_32_bits(rdev->mc.vram_start));
398			}
399		}
400		WREG32(R_006110_D1GRPH_PRIMARY_SURFACE_ADDRESS + crtc_offsets[i],
401		       (u32)rdev->mc.vram_start);
402		WREG32(R_006118_D1GRPH_SECONDARY_SURFACE_ADDRESS + crtc_offsets[i],
403		       (u32)rdev->mc.vram_start);
404	}
405	WREG32(R_000310_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start);
406
407	/* unlock regs and wait for update */
408	for (i = 0; i < rdev->num_crtc; i++) {
409		if (save->crtc_enabled[i]) {
410			tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + crtc_offsets[i]);
411			if ((tmp & 0x7) != 3) {
412				tmp &= ~0x7;
413				tmp |= 0x3;
414				WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + crtc_offsets[i], tmp);
415			}
416			tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]);
417			if (tmp & AVIVO_D1GRPH_UPDATE_LOCK) {
418				tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK;
419				WREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i], tmp);
420			}
421			tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i]);
422			if (tmp & 1) {
423				tmp &= ~1;
424				WREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
425			}
426			for (j = 0; j < rdev->usec_timeout; j++) {
427				tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]);
428				if ((tmp & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING) == 0)
429					break;
430				udelay(1);
431			}
432		}
433	}
434
435	if (rdev->family >= CHIP_R600) {
436		/* unblackout the MC */
437		if (rdev->family >= CHIP_RV770)
438			tmp = RREG32(R700_MC_CITF_CNTL);
439		else
440			tmp = RREG32(R600_CITF_CNTL);
441		tmp &= ~R600_BLACKOUT_MASK;
442		if (rdev->family >= CHIP_RV770)
443			WREG32(R700_MC_CITF_CNTL, tmp);
444		else
445			WREG32(R600_CITF_CNTL, tmp);
446		/* allow CPU access */
447		WREG32(R600_BIF_FB_EN, R600_FB_READ_EN | R600_FB_WRITE_EN);
448	}
449
450	for (i = 0; i < rdev->num_crtc; i++) {
451		if (save->crtc_enabled[i]) {
452			tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]);
453			tmp &= ~AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
454			WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp);
455			/* wait for the next frame */
456			frame_count = radeon_get_vblank_counter(rdev, i);
457			for (j = 0; j < rdev->usec_timeout; j++) {
458				if (radeon_get_vblank_counter(rdev, i) != frame_count)
459					break;
460				udelay(1);
461			}
462		}
463	}
464	/* Unlock vga access */
465	WREG32(R_000328_VGA_HDP_CONTROL, save->vga_hdp_control);
466	mdelay(1);
467	WREG32(R_000300_VGA_RENDER_CONTROL, save->vga_render_control);
468}
469
470static void rv515_mc_program(struct radeon_device *rdev)
471{
472	struct rv515_mc_save save;
473
474	/* Stops all mc clients */
475	rv515_mc_stop(rdev, &save);
476
477	/* Wait for mc idle */
478	if (rv515_mc_wait_for_idle(rdev))
479		dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
480	/* Write VRAM size in case we are limiting it */
481	WREG32(R_0000F8_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
482	/* Program MC, should be a 32bits limited address space */
483	WREG32_MC(R_000001_MC_FB_LOCATION,
484			S_000001_MC_FB_START(rdev->mc.vram_start >> 16) |
485			S_000001_MC_FB_TOP(rdev->mc.vram_end >> 16));
486	WREG32(R_000134_HDP_FB_LOCATION,
487		S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
488	if (rdev->flags & RADEON_IS_AGP) {
489		WREG32_MC(R_000002_MC_AGP_LOCATION,
490			S_000002_MC_AGP_START(rdev->mc.gtt_start >> 16) |
491			S_000002_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
492		WREG32_MC(R_000003_MC_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
493		WREG32_MC(R_000004_MC_AGP_BASE_2,
494			S_000004_AGP_BASE_ADDR_2(upper_32_bits(rdev->mc.agp_base)));
495	} else {
496		WREG32_MC(R_000002_MC_AGP_LOCATION, 0xFFFFFFFF);
497		WREG32_MC(R_000003_MC_AGP_BASE, 0);
498		WREG32_MC(R_000004_MC_AGP_BASE_2, 0);
499	}
500
501	rv515_mc_resume(rdev, &save);
502}
503
504void rv515_clock_startup(struct radeon_device *rdev)
505{
506	if (radeon_dynclks != -1 && radeon_dynclks)
507		radeon_atom_set_clock_gating(rdev, 1);
508	/* We need to force on some of the block */
509	WREG32_PLL(R_00000F_CP_DYN_CNTL,
510		RREG32_PLL(R_00000F_CP_DYN_CNTL) | S_00000F_CP_FORCEON(1));
511	WREG32_PLL(R_000011_E2_DYN_CNTL,
512		RREG32_PLL(R_000011_E2_DYN_CNTL) | S_000011_E2_FORCEON(1));
513	WREG32_PLL(R_000013_IDCT_DYN_CNTL,
514		RREG32_PLL(R_000013_IDCT_DYN_CNTL) | S_000013_IDCT_FORCEON(1));
515}
516
517static int rv515_startup(struct radeon_device *rdev)
518{
519	int r;
520
521	rv515_mc_program(rdev);
522	/* Resume clock */
523	rv515_clock_startup(rdev);
524	/* Initialize GPU configuration (# pipes, ...) */
525	rv515_gpu_init(rdev);
526	/* Initialize GART (initialize after TTM so we can allocate
527	 * memory through TTM but finalize after TTM) */
528	if (rdev->flags & RADEON_IS_PCIE) {
529		r = rv370_pcie_gart_enable(rdev);
530		if (r)
531			return r;
532	}
533
534	/* allocate wb buffer */
535	r = radeon_wb_init(rdev);
536	if (r)
537		return r;
538
539	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
540	if (r) {
541		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
542		return r;
543	}
544
545	/* Enable IRQ */
546	if (!rdev->irq.installed) {
547		r = radeon_irq_kms_init(rdev);
548		if (r)
549			return r;
550	}
551
552	rs600_irq_set(rdev);
553	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
554	/* 1M ring buffer */
555	r = r100_cp_init(rdev, 1024 * 1024);
556	if (r) {
557		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
558		return r;
559	}
560
561	r = radeon_ib_pool_init(rdev);
562	if (r) {
563		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
564		return r;
565	}
566
567	return 0;
568}
569
570int rv515_resume(struct radeon_device *rdev)
571{
572	int r;
573
574	/* Make sur GART are not working */
575	if (rdev->flags & RADEON_IS_PCIE)
576		rv370_pcie_gart_disable(rdev);
577	/* Resume clock before doing reset */
578	rv515_clock_startup(rdev);
579	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
580	if (radeon_asic_reset(rdev)) {
581		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
582			RREG32(R_000E40_RBBM_STATUS),
583			RREG32(R_0007C0_CP_STAT));
584	}
585	/* post */
586	atom_asic_init(rdev->mode_info.atom_context);
587	/* Resume clock after posting */
588	rv515_clock_startup(rdev);
589	/* Initialize surface registers */
590	radeon_surface_init(rdev);
591
592	rdev->accel_working = true;
593	r =  rv515_startup(rdev);
594	if (r) {
595		rdev->accel_working = false;
596	}
597	return r;
598}
599
600int rv515_suspend(struct radeon_device *rdev)
601{
602	radeon_pm_suspend(rdev);
603	r100_cp_disable(rdev);
604	radeon_wb_disable(rdev);
605	rs600_irq_disable(rdev);
606	if (rdev->flags & RADEON_IS_PCIE)
607		rv370_pcie_gart_disable(rdev);
608	return 0;
609}
610
611void rv515_set_safe_registers(struct radeon_device *rdev)
612{
613	rdev->config.r300.reg_safe_bm = rv515_reg_safe_bm;
614	rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rv515_reg_safe_bm);
615}
616
617void rv515_fini(struct radeon_device *rdev)
618{
619	radeon_pm_fini(rdev);
620	r100_cp_fini(rdev);
621	radeon_wb_fini(rdev);
622	radeon_ib_pool_fini(rdev);
623	radeon_gem_fini(rdev);
624	rv370_pcie_gart_fini(rdev);
625	radeon_agp_fini(rdev);
626	radeon_irq_kms_fini(rdev);
627	radeon_fence_driver_fini(rdev);
628	radeon_bo_fini(rdev);
629	radeon_atombios_fini(rdev);
630	kfree(rdev->bios);
631	rdev->bios = NULL;
632}
633
634int rv515_init(struct radeon_device *rdev)
635{
636	int r;
637
638	/* Initialize scratch registers */
639	radeon_scratch_init(rdev);
640	/* Initialize surface registers */
641	radeon_surface_init(rdev);
642	/* TODO: disable VGA need to use VGA request */
643	/* restore some register to sane defaults */
644	r100_restore_sanity(rdev);
645	/* BIOS*/
646	if (!radeon_get_bios(rdev)) {
647		if (ASIC_IS_AVIVO(rdev))
648			return -EINVAL;
649	}
650	if (rdev->is_atom_bios) {
651		r = radeon_atombios_init(rdev);
652		if (r)
653			return r;
654	} else {
655		dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
656		return -EINVAL;
657	}
658	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
659	if (radeon_asic_reset(rdev)) {
660		dev_warn(rdev->dev,
661			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
662			RREG32(R_000E40_RBBM_STATUS),
663			RREG32(R_0007C0_CP_STAT));
664	}
665	/* check if cards are posted or not */
666	if (radeon_boot_test_post_card(rdev) == false)
667		return -EINVAL;
668	/* Initialize clocks */
669	radeon_get_clock_info(rdev->ddev);
670	/* initialize AGP */
671	if (rdev->flags & RADEON_IS_AGP) {
672		r = radeon_agp_init(rdev);
673		if (r) {
674			radeon_agp_disable(rdev);
675		}
676	}
677	/* initialize memory controller */
678	rv515_mc_init(rdev);
679	rv515_debugfs(rdev);
680	/* Fence driver */
681	r = radeon_fence_driver_init(rdev);
682	if (r)
683		return r;
684	/* Memory manager */
685	r = radeon_bo_init(rdev);
686	if (r)
687		return r;
688	r = rv370_pcie_gart_init(rdev);
689	if (r)
690		return r;
691	rv515_set_safe_registers(rdev);
692
693	/* Initialize power management */
694	radeon_pm_init(rdev);
695
696	rdev->accel_working = true;
697	r = rv515_startup(rdev);
698	if (r) {
699		/* Somethings want wront with the accel init stop accel */
700		dev_err(rdev->dev, "Disabling GPU acceleration\n");
701		r100_cp_fini(rdev);
702		radeon_wb_fini(rdev);
703		radeon_ib_pool_fini(rdev);
704		radeon_irq_kms_fini(rdev);
705		rv370_pcie_gart_fini(rdev);
706		radeon_agp_fini(rdev);
707		rdev->accel_working = false;
708	}
709	return 0;
710}
711
712void atom_rv515_force_tv_scaler(struct radeon_device *rdev, struct radeon_crtc *crtc)
713{
714	int index_reg = 0x6578 + crtc->crtc_offset;
715	int data_reg = 0x657c + crtc->crtc_offset;
716
717	WREG32(0x659C + crtc->crtc_offset, 0x0);
718	WREG32(0x6594 + crtc->crtc_offset, 0x705);
719	WREG32(0x65A4 + crtc->crtc_offset, 0x10001);
720	WREG32(0x65D8 + crtc->crtc_offset, 0x0);
721	WREG32(0x65B0 + crtc->crtc_offset, 0x0);
722	WREG32(0x65C0 + crtc->crtc_offset, 0x0);
723	WREG32(0x65D4 + crtc->crtc_offset, 0x0);
724	WREG32(index_reg, 0x0);
725	WREG32(data_reg, 0x841880A8);
726	WREG32(index_reg, 0x1);
727	WREG32(data_reg, 0x84208680);
728	WREG32(index_reg, 0x2);
729	WREG32(data_reg, 0xBFF880B0);
730	WREG32(index_reg, 0x100);
731	WREG32(data_reg, 0x83D88088);
732	WREG32(index_reg, 0x101);
733	WREG32(data_reg, 0x84608680);
734	WREG32(index_reg, 0x102);
735	WREG32(data_reg, 0xBFF080D0);
736	WREG32(index_reg, 0x200);
737	WREG32(data_reg, 0x83988068);
738	WREG32(index_reg, 0x201);
739	WREG32(data_reg, 0x84A08680);
740	WREG32(index_reg, 0x202);
741	WREG32(data_reg, 0xBFF080F8);
742	WREG32(index_reg, 0x300);
743	WREG32(data_reg, 0x83588058);
744	WREG32(index_reg, 0x301);
745	WREG32(data_reg, 0x84E08660);
746	WREG32(index_reg, 0x302);
747	WREG32(data_reg, 0xBFF88120);
748	WREG32(index_reg, 0x400);
749	WREG32(data_reg, 0x83188040);
750	WREG32(index_reg, 0x401);
751	WREG32(data_reg, 0x85008660);
752	WREG32(index_reg, 0x402);
753	WREG32(data_reg, 0xBFF88150);
754	WREG32(index_reg, 0x500);
755	WREG32(data_reg, 0x82D88030);
756	WREG32(index_reg, 0x501);
757	WREG32(data_reg, 0x85408640);
758	WREG32(index_reg, 0x502);
759	WREG32(data_reg, 0xBFF88180);
760	WREG32(index_reg, 0x600);
761	WREG32(data_reg, 0x82A08018);
762	WREG32(index_reg, 0x601);
763	WREG32(data_reg, 0x85808620);
764	WREG32(index_reg, 0x602);
765	WREG32(data_reg, 0xBFF081B8);
766	WREG32(index_reg, 0x700);
767	WREG32(data_reg, 0x82608010);
768	WREG32(index_reg, 0x701);
769	WREG32(data_reg, 0x85A08600);
770	WREG32(index_reg, 0x702);
771	WREG32(data_reg, 0x800081F0);
772	WREG32(index_reg, 0x800);
773	WREG32(data_reg, 0x8228BFF8);
774	WREG32(index_reg, 0x801);
775	WREG32(data_reg, 0x85E085E0);
776	WREG32(index_reg, 0x802);
777	WREG32(data_reg, 0xBFF88228);
778	WREG32(index_reg, 0x10000);
779	WREG32(data_reg, 0x82A8BF00);
780	WREG32(index_reg, 0x10001);
781	WREG32(data_reg, 0x82A08CC0);
782	WREG32(index_reg, 0x10002);
783	WREG32(data_reg, 0x8008BEF8);
784	WREG32(index_reg, 0x10100);
785	WREG32(data_reg, 0x81F0BF28);
786	WREG32(index_reg, 0x10101);
787	WREG32(data_reg, 0x83608CA0);
788	WREG32(index_reg, 0x10102);
789	WREG32(data_reg, 0x8018BED0);
790	WREG32(index_reg, 0x10200);
791	WREG32(data_reg, 0x8148BF38);
792	WREG32(index_reg, 0x10201);
793	WREG32(data_reg, 0x84408C80);
794	WREG32(index_reg, 0x10202);
795	WREG32(data_reg, 0x8008BEB8);
796	WREG32(index_reg, 0x10300);
797	WREG32(data_reg, 0x80B0BF78);
798	WREG32(index_reg, 0x10301);
799	WREG32(data_reg, 0x85008C20);
800	WREG32(index_reg, 0x10302);
801	WREG32(data_reg, 0x8020BEA0);
802	WREG32(index_reg, 0x10400);
803	WREG32(data_reg, 0x8028BF90);
804	WREG32(index_reg, 0x10401);
805	WREG32(data_reg, 0x85E08BC0);
806	WREG32(index_reg, 0x10402);
807	WREG32(data_reg, 0x8018BE90);
808	WREG32(index_reg, 0x10500);
809	WREG32(data_reg, 0xBFB8BFB0);
810	WREG32(index_reg, 0x10501);
811	WREG32(data_reg, 0x86C08B40);
812	WREG32(index_reg, 0x10502);
813	WREG32(data_reg, 0x8010BE90);
814	WREG32(index_reg, 0x10600);
815	WREG32(data_reg, 0xBF58BFC8);
816	WREG32(index_reg, 0x10601);
817	WREG32(data_reg, 0x87A08AA0);
818	WREG32(index_reg, 0x10602);
819	WREG32(data_reg, 0x8010BE98);
820	WREG32(index_reg, 0x10700);
821	WREG32(data_reg, 0xBF10BFF0);
822	WREG32(index_reg, 0x10701);
823	WREG32(data_reg, 0x886089E0);
824	WREG32(index_reg, 0x10702);
825	WREG32(data_reg, 0x8018BEB0);
826	WREG32(index_reg, 0x10800);
827	WREG32(data_reg, 0xBED8BFE8);
828	WREG32(index_reg, 0x10801);
829	WREG32(data_reg, 0x89408940);
830	WREG32(index_reg, 0x10802);
831	WREG32(data_reg, 0xBFE8BED8);
832	WREG32(index_reg, 0x20000);
833	WREG32(data_reg, 0x80008000);
834	WREG32(index_reg, 0x20001);
835	WREG32(data_reg, 0x90008000);
836	WREG32(index_reg, 0x20002);
837	WREG32(data_reg, 0x80008000);
838	WREG32(index_reg, 0x20003);
839	WREG32(data_reg, 0x80008000);
840	WREG32(index_reg, 0x20100);
841	WREG32(data_reg, 0x80108000);
842	WREG32(index_reg, 0x20101);
843	WREG32(data_reg, 0x8FE0BF70);
844	WREG32(index_reg, 0x20102);
845	WREG32(data_reg, 0xBFE880C0);
846	WREG32(index_reg, 0x20103);
847	WREG32(data_reg, 0x80008000);
848	WREG32(index_reg, 0x20200);
849	WREG32(data_reg, 0x8018BFF8);
850	WREG32(index_reg, 0x20201);
851	WREG32(data_reg, 0x8F80BF08);
852	WREG32(index_reg, 0x20202);
853	WREG32(data_reg, 0xBFD081A0);
854	WREG32(index_reg, 0x20203);
855	WREG32(data_reg, 0xBFF88000);
856	WREG32(index_reg, 0x20300);
857	WREG32(data_reg, 0x80188000);
858	WREG32(index_reg, 0x20301);
859	WREG32(data_reg, 0x8EE0BEC0);
860	WREG32(index_reg, 0x20302);
861	WREG32(data_reg, 0xBFB082A0);
862	WREG32(index_reg, 0x20303);
863	WREG32(data_reg, 0x80008000);
864	WREG32(index_reg, 0x20400);
865	WREG32(data_reg, 0x80188000);
866	WREG32(index_reg, 0x20401);
867	WREG32(data_reg, 0x8E00BEA0);
868	WREG32(index_reg, 0x20402);
869	WREG32(data_reg, 0xBF8883C0);
870	WREG32(index_reg, 0x20403);
871	WREG32(data_reg, 0x80008000);
872	WREG32(index_reg, 0x20500);
873	WREG32(data_reg, 0x80188000);
874	WREG32(index_reg, 0x20501);
875	WREG32(data_reg, 0x8D00BE90);
876	WREG32(index_reg, 0x20502);
877	WREG32(data_reg, 0xBF588500);
878	WREG32(index_reg, 0x20503);
879	WREG32(data_reg, 0x80008008);
880	WREG32(index_reg, 0x20600);
881	WREG32(data_reg, 0x80188000);
882	WREG32(index_reg, 0x20601);
883	WREG32(data_reg, 0x8BC0BE98);
884	WREG32(index_reg, 0x20602);
885	WREG32(data_reg, 0xBF308660);
886	WREG32(index_reg, 0x20603);
887	WREG32(data_reg, 0x80008008);
888	WREG32(index_reg, 0x20700);
889	WREG32(data_reg, 0x80108000);
890	WREG32(index_reg, 0x20701);
891	WREG32(data_reg, 0x8A80BEB0);
892	WREG32(index_reg, 0x20702);
893	WREG32(data_reg, 0xBF0087C0);
894	WREG32(index_reg, 0x20703);
895	WREG32(data_reg, 0x80008008);
896	WREG32(index_reg, 0x20800);
897	WREG32(data_reg, 0x80108000);
898	WREG32(index_reg, 0x20801);
899	WREG32(data_reg, 0x8920BED0);
900	WREG32(index_reg, 0x20802);
901	WREG32(data_reg, 0xBED08920);
902	WREG32(index_reg, 0x20803);
903	WREG32(data_reg, 0x80008010);
904	WREG32(index_reg, 0x30000);
905	WREG32(data_reg, 0x90008000);
906	WREG32(index_reg, 0x30001);
907	WREG32(data_reg, 0x80008000);
908	WREG32(index_reg, 0x30100);
909	WREG32(data_reg, 0x8FE0BF90);
910	WREG32(index_reg, 0x30101);
911	WREG32(data_reg, 0xBFF880A0);
912	WREG32(index_reg, 0x30200);
913	WREG32(data_reg, 0x8F60BF40);
914	WREG32(index_reg, 0x30201);
915	WREG32(data_reg, 0xBFE88180);
916	WREG32(index_reg, 0x30300);
917	WREG32(data_reg, 0x8EC0BF00);
918	WREG32(index_reg, 0x30301);
919	WREG32(data_reg, 0xBFC88280);
920	WREG32(index_reg, 0x30400);
921	WREG32(data_reg, 0x8DE0BEE0);
922	WREG32(index_reg, 0x30401);
923	WREG32(data_reg, 0xBFA083A0);
924	WREG32(index_reg, 0x30500);
925	WREG32(data_reg, 0x8CE0BED0);
926	WREG32(index_reg, 0x30501);
927	WREG32(data_reg, 0xBF7884E0);
928	WREG32(index_reg, 0x30600);
929	WREG32(data_reg, 0x8BA0BED8);
930	WREG32(index_reg, 0x30601);
931	WREG32(data_reg, 0xBF508640);
932	WREG32(index_reg, 0x30700);
933	WREG32(data_reg, 0x8A60BEE8);
934	WREG32(index_reg, 0x30701);
935	WREG32(data_reg, 0xBF2087A0);
936	WREG32(index_reg, 0x30800);
937	WREG32(data_reg, 0x8900BF00);
938	WREG32(index_reg, 0x30801);
939	WREG32(data_reg, 0xBF008900);
940}
941
942struct rv515_watermark {
943	u32        lb_request_fifo_depth;
944	fixed20_12 num_line_pair;
945	fixed20_12 estimated_width;
946	fixed20_12 worst_case_latency;
947	fixed20_12 consumption_rate;
948	fixed20_12 active_time;
949	fixed20_12 dbpp;
950	fixed20_12 priority_mark_max;
951	fixed20_12 priority_mark;
952	fixed20_12 sclk;
953};
954
955static void rv515_crtc_bandwidth_compute(struct radeon_device *rdev,
956					 struct radeon_crtc *crtc,
957					 struct rv515_watermark *wm,
958					 bool low)
959{
960	struct drm_display_mode *mode = &crtc->base.mode;
961	fixed20_12 a, b, c;
962	fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
963	fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
964	fixed20_12 sclk;
965	u32 selected_sclk;
966
967	if (!crtc->base.enabled) {
968		/* FIXME: wouldn't it better to set priority mark to maximum */
969		wm->lb_request_fifo_depth = 4;
970		return;
971	}
972
973	/* rv6xx, rv7xx */
974	if ((rdev->family >= CHIP_RV610) &&
975	    (rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
976		selected_sclk = radeon_dpm_get_sclk(rdev, low);
977	else
978		selected_sclk = rdev->pm.current_sclk;
979
980	/* sclk in Mhz */
981	a.full = dfixed_const(100);
982	sclk.full = dfixed_const(selected_sclk);
983	sclk.full = dfixed_div(sclk, a);
984
985	if (crtc->vsc.full > dfixed_const(2))
986		wm->num_line_pair.full = dfixed_const(2);
987	else
988		wm->num_line_pair.full = dfixed_const(1);
989
990	b.full = dfixed_const(mode->crtc_hdisplay);
991	c.full = dfixed_const(256);
992	a.full = dfixed_div(b, c);
993	request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair);
994	request_fifo_depth.full = dfixed_ceil(request_fifo_depth);
995	if (a.full < dfixed_const(4)) {
996		wm->lb_request_fifo_depth = 4;
997	} else {
998		wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth);
999	}
1000
1001	/* Determine consumption rate
1002	 *  pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
1003	 *  vtaps = number of vertical taps,
1004	 *  vsc = vertical scaling ratio, defined as source/destination
1005	 *  hsc = horizontal scaling ration, defined as source/destination
1006	 */
1007	a.full = dfixed_const(mode->clock);
1008	b.full = dfixed_const(1000);
1009	a.full = dfixed_div(a, b);
1010	pclk.full = dfixed_div(b, a);
1011	if (crtc->rmx_type != RMX_OFF) {
1012		b.full = dfixed_const(2);
1013		if (crtc->vsc.full > b.full)
1014			b.full = crtc->vsc.full;
1015		b.full = dfixed_mul(b, crtc->hsc);
1016		c.full = dfixed_const(2);
1017		b.full = dfixed_div(b, c);
1018		consumption_time.full = dfixed_div(pclk, b);
1019	} else {
1020		consumption_time.full = pclk.full;
1021	}
1022	a.full = dfixed_const(1);
1023	wm->consumption_rate.full = dfixed_div(a, consumption_time);
1024
1025
1026	/* Determine line time
1027	 *  LineTime = total time for one line of displayhtotal
1028	 *  LineTime = total number of horizontal pixels
1029	 *  pclk = pixel clock period(ns)
1030	 */
1031	a.full = dfixed_const(crtc->base.mode.crtc_htotal);
1032	line_time.full = dfixed_mul(a, pclk);
1033
1034	/* Determine active time
1035	 *  ActiveTime = time of active region of display within one line,
1036	 *  hactive = total number of horizontal active pixels
1037	 *  htotal = total number of horizontal pixels
1038	 */
1039	a.full = dfixed_const(crtc->base.mode.crtc_htotal);
1040	b.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
1041	wm->active_time.full = dfixed_mul(line_time, b);
1042	wm->active_time.full = dfixed_div(wm->active_time, a);
1043
1044	/* Determine chunk time
1045	 * ChunkTime = the time it takes the DCP to send one chunk of data
1046	 * to the LB which consists of pipeline delay and inter chunk gap
1047	 * sclk = system clock(Mhz)
1048	 */
1049	a.full = dfixed_const(600 * 1000);
1050	chunk_time.full = dfixed_div(a, sclk);
1051	read_delay_latency.full = dfixed_const(1000);
1052
1053	/* Determine the worst case latency
1054	 * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
1055	 * WorstCaseLatency = worst case time from urgent to when the MC starts
1056	 *                    to return data
1057	 * READ_DELAY_IDLE_MAX = constant of 1us
1058	 * ChunkTime = time it takes the DCP to send one chunk of data to the LB
1059	 *             which consists of pipeline delay and inter chunk gap
1060	 */
1061	if (dfixed_trunc(wm->num_line_pair) > 1) {
1062		a.full = dfixed_const(3);
1063		wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
1064		wm->worst_case_latency.full += read_delay_latency.full;
1065	} else {
1066		wm->worst_case_latency.full = chunk_time.full + read_delay_latency.full;
1067	}
1068
1069	/* Determine the tolerable latency
1070	 * TolerableLatency = Any given request has only 1 line time
1071	 *                    for the data to be returned
1072	 * LBRequestFifoDepth = Number of chunk requests the LB can
1073	 *                      put into the request FIFO for a display
1074	 *  LineTime = total time for one line of display
1075	 *  ChunkTime = the time it takes the DCP to send one chunk
1076	 *              of data to the LB which consists of
1077	 *  pipeline delay and inter chunk gap
1078	 */
1079	if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) {
1080		tolerable_latency.full = line_time.full;
1081	} else {
1082		tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2);
1083		tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
1084		tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time);
1085		tolerable_latency.full = line_time.full - tolerable_latency.full;
1086	}
1087	/* We assume worst case 32bits (4 bytes) */
1088	wm->dbpp.full = dfixed_const(2 * 16);
1089
1090	/* Determine the maximum priority mark
1091	 *  width = viewport width in pixels
1092	 */
1093	a.full = dfixed_const(16);
1094	wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
1095	wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a);
1096	wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max);
1097
1098	/* Determine estimated width */
1099	estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
1100	estimated_width.full = dfixed_div(estimated_width, consumption_time);
1101	if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
1102		wm->priority_mark.full = wm->priority_mark_max.full;
1103	} else {
1104		a.full = dfixed_const(16);
1105		wm->priority_mark.full = dfixed_div(estimated_width, a);
1106		wm->priority_mark.full = dfixed_ceil(wm->priority_mark);
1107		wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
1108	}
1109}
1110
1111static void rv515_compute_mode_priority(struct radeon_device *rdev,
1112					struct rv515_watermark *wm0,
1113					struct rv515_watermark *wm1,
1114					struct drm_display_mode *mode0,
1115					struct drm_display_mode *mode1,
1116					u32 *d1mode_priority_a_cnt,
1117					u32 *d2mode_priority_a_cnt)
1118{
1119	fixed20_12 priority_mark02, priority_mark12, fill_rate;
1120	fixed20_12 a, b;
1121
1122	*d1mode_priority_a_cnt = MODE_PRIORITY_OFF;
1123	*d2mode_priority_a_cnt = MODE_PRIORITY_OFF;
1124
1125	if (mode0 && mode1) {
1126		if (dfixed_trunc(wm0->dbpp) > 64)
1127			a.full = dfixed_div(wm0->dbpp, wm0->num_line_pair);
1128		else
1129			a.full = wm0->num_line_pair.full;
1130		if (dfixed_trunc(wm1->dbpp) > 64)
1131			b.full = dfixed_div(wm1->dbpp, wm1->num_line_pair);
1132		else
1133			b.full = wm1->num_line_pair.full;
1134		a.full += b.full;
1135		fill_rate.full = dfixed_div(wm0->sclk, a);
1136		if (wm0->consumption_rate.full > fill_rate.full) {
1137			b.full = wm0->consumption_rate.full - fill_rate.full;
1138			b.full = dfixed_mul(b, wm0->active_time);
1139			a.full = dfixed_const(16);
1140			b.full = dfixed_div(b, a);
1141			a.full = dfixed_mul(wm0->worst_case_latency,
1142						wm0->consumption_rate);
1143			priority_mark02.full = a.full + b.full;
1144		} else {
1145			a.full = dfixed_mul(wm0->worst_case_latency,
1146						wm0->consumption_rate);
1147			b.full = dfixed_const(16 * 1000);
1148			priority_mark02.full = dfixed_div(a, b);
1149		}
1150		if (wm1->consumption_rate.full > fill_rate.full) {
1151			b.full = wm1->consumption_rate.full - fill_rate.full;
1152			b.full = dfixed_mul(b, wm1->active_time);
1153			a.full = dfixed_const(16);
1154			b.full = dfixed_div(b, a);
1155			a.full = dfixed_mul(wm1->worst_case_latency,
1156						wm1->consumption_rate);
1157			priority_mark12.full = a.full + b.full;
1158		} else {
1159			a.full = dfixed_mul(wm1->worst_case_latency,
1160						wm1->consumption_rate);
1161			b.full = dfixed_const(16 * 1000);
1162			priority_mark12.full = dfixed_div(a, b);
1163		}
1164		if (wm0->priority_mark.full > priority_mark02.full)
1165			priority_mark02.full = wm0->priority_mark.full;
1166		if (wm0->priority_mark_max.full > priority_mark02.full)
1167			priority_mark02.full = wm0->priority_mark_max.full;
1168		if (wm1->priority_mark.full > priority_mark12.full)
1169			priority_mark12.full = wm1->priority_mark.full;
1170		if (wm1->priority_mark_max.full > priority_mark12.full)
1171			priority_mark12.full = wm1->priority_mark_max.full;
1172		*d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
1173		*d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
1174		if (rdev->disp_priority == 2) {
1175			*d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1176			*d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1177		}
1178	} else if (mode0) {
1179		if (dfixed_trunc(wm0->dbpp) > 64)
1180			a.full = dfixed_div(wm0->dbpp, wm0->num_line_pair);
1181		else
1182			a.full = wm0->num_line_pair.full;
1183		fill_rate.full = dfixed_div(wm0->sclk, a);
1184		if (wm0->consumption_rate.full > fill_rate.full) {
1185			b.full = wm0->consumption_rate.full - fill_rate.full;
1186			b.full = dfixed_mul(b, wm0->active_time);
1187			a.full = dfixed_const(16);
1188			b.full = dfixed_div(b, a);
1189			a.full = dfixed_mul(wm0->worst_case_latency,
1190						wm0->consumption_rate);
1191			priority_mark02.full = a.full + b.full;
1192		} else {
1193			a.full = dfixed_mul(wm0->worst_case_latency,
1194						wm0->consumption_rate);
1195			b.full = dfixed_const(16);
1196			priority_mark02.full = dfixed_div(a, b);
1197		}
1198		if (wm0->priority_mark.full > priority_mark02.full)
1199			priority_mark02.full = wm0->priority_mark.full;
1200		if (wm0->priority_mark_max.full > priority_mark02.full)
1201			priority_mark02.full = wm0->priority_mark_max.full;
1202		*d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
1203		if (rdev->disp_priority == 2)
1204			*d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1205	} else if (mode1) {
1206		if (dfixed_trunc(wm1->dbpp) > 64)
1207			a.full = dfixed_div(wm1->dbpp, wm1->num_line_pair);
1208		else
1209			a.full = wm1->num_line_pair.full;
1210		fill_rate.full = dfixed_div(wm1->sclk, a);
1211		if (wm1->consumption_rate.full > fill_rate.full) {
1212			b.full = wm1->consumption_rate.full - fill_rate.full;
1213			b.full = dfixed_mul(b, wm1->active_time);
1214			a.full = dfixed_const(16);
1215			b.full = dfixed_div(b, a);
1216			a.full = dfixed_mul(wm1->worst_case_latency,
1217						wm1->consumption_rate);
1218			priority_mark12.full = a.full + b.full;
1219		} else {
1220			a.full = dfixed_mul(wm1->worst_case_latency,
1221						wm1->consumption_rate);
1222			b.full = dfixed_const(16 * 1000);
1223			priority_mark12.full = dfixed_div(a, b);
1224		}
1225		if (wm1->priority_mark.full > priority_mark12.full)
1226			priority_mark12.full = wm1->priority_mark.full;
1227		if (wm1->priority_mark_max.full > priority_mark12.full)
1228			priority_mark12.full = wm1->priority_mark_max.full;
1229		*d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
1230		if (rdev->disp_priority == 2)
1231			*d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1232	}
1233}
1234
1235void rv515_bandwidth_avivo_update(struct radeon_device *rdev)
1236{
1237	struct drm_display_mode *mode0 = NULL;
1238	struct drm_display_mode *mode1 = NULL;
1239	struct rv515_watermark wm0_high, wm0_low;
1240	struct rv515_watermark wm1_high, wm1_low;
1241	u32 tmp;
1242	u32 d1mode_priority_a_cnt, d1mode_priority_b_cnt;
1243	u32 d2mode_priority_a_cnt, d2mode_priority_b_cnt;
1244
1245	if (rdev->mode_info.crtcs[0]->base.enabled)
1246		mode0 = &rdev->mode_info.crtcs[0]->base.mode;
1247	if (rdev->mode_info.crtcs[1]->base.enabled)
1248		mode1 = &rdev->mode_info.crtcs[1]->base.mode;
1249	rs690_line_buffer_adjust(rdev, mode0, mode1);
1250
1251	rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_high, false);
1252	rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_high, false);
1253
1254	rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_low, false);
1255	rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_low, false);
1256
1257	tmp = wm0_high.lb_request_fifo_depth;
1258	tmp |= wm1_high.lb_request_fifo_depth << 16;
1259	WREG32(LB_MAX_REQ_OUTSTANDING, tmp);
1260
1261	rv515_compute_mode_priority(rdev,
1262				    &wm0_high, &wm1_high,
1263				    mode0, mode1,
1264				    &d1mode_priority_a_cnt, &d2mode_priority_a_cnt);
1265	rv515_compute_mode_priority(rdev,
1266				    &wm0_low, &wm1_low,
1267				    mode0, mode1,
1268				    &d1mode_priority_b_cnt, &d2mode_priority_b_cnt);
1269
1270	WREG32(D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
1271	WREG32(D1MODE_PRIORITY_B_CNT, d1mode_priority_b_cnt);
1272	WREG32(D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
1273	WREG32(D2MODE_PRIORITY_B_CNT, d2mode_priority_b_cnt);
1274}
1275
1276void rv515_bandwidth_update(struct radeon_device *rdev)
1277{
1278	uint32_t tmp;
1279	struct drm_display_mode *mode0 = NULL;
1280	struct drm_display_mode *mode1 = NULL;
1281
1282	if (!rdev->mode_info.mode_config_initialized)
1283		return;
1284
1285	radeon_update_display_priority(rdev);
1286
1287	if (rdev->mode_info.crtcs[0]->base.enabled)
1288		mode0 = &rdev->mode_info.crtcs[0]->base.mode;
1289	if (rdev->mode_info.crtcs[1]->base.enabled)
1290		mode1 = &rdev->mode_info.crtcs[1]->base.mode;
1291	/*
1292	 * Set display0/1 priority up in the memory controller for
1293	 * modes if the user specifies HIGH for displaypriority
1294	 * option.
1295	 */
1296	if ((rdev->disp_priority == 2) &&
1297	    (rdev->family == CHIP_RV515)) {
1298		tmp = RREG32_MC(MC_MISC_LAT_TIMER);
1299		tmp &= ~MC_DISP1R_INIT_LAT_MASK;
1300		tmp &= ~MC_DISP0R_INIT_LAT_MASK;
1301		if (mode1)
1302			tmp |= (1 << MC_DISP1R_INIT_LAT_SHIFT);
1303		if (mode0)
1304			tmp |= (1 << MC_DISP0R_INIT_LAT_SHIFT);
1305		WREG32_MC(MC_MISC_LAT_TIMER, tmp);
1306	}
1307	rv515_bandwidth_avivo_update(rdev);
1308}
1309