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/pci.h>
30#include <linux/seq_file.h>
31#include <linux/slab.h>
32
33#include <drm/drm.h>
34#include <drm/drm_device.h>
35#include <drm/drm_file.h>
36#include <drm/radeon_drm.h>
37
38#include "r100_track.h"
39#include "r300_reg_safe.h"
40#include "r300d.h"
41#include "radeon.h"
42#include "radeon_asic.h"
43#include "radeon_reg.h"
44#include "rv350d.h"
45
46/* This files gather functions specifics to: r300,r350,rv350,rv370,rv380
47 *
48 * GPU Errata:
49 * - HOST_PATH_CNTL: r300 family seems to dislike write to HOST_PATH_CNTL
50 *   using MMIO to flush host path read cache, this lead to HARDLOCKUP.
51 *   However, scheduling such write to the ring seems harmless, i suspect
52 *   the CP read collide with the flush somehow, or maybe the MC, hard to
53 *   tell. (Jerome Glisse)
54 */
55
56/*
57 * Indirect registers accessor
58 */
59uint32_t rv370_pcie_rreg(struct radeon_device *rdev, uint32_t reg)
60{
61	unsigned long flags;
62	uint32_t r;
63
64	spin_lock_irqsave(&rdev->pcie_idx_lock, flags);
65	WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask));
66	r = RREG32(RADEON_PCIE_DATA);
67	spin_unlock_irqrestore(&rdev->pcie_idx_lock, flags);
68	return r;
69}
70
71void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
72{
73	unsigned long flags;
74
75	spin_lock_irqsave(&rdev->pcie_idx_lock, flags);
76	WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask));
77	WREG32(RADEON_PCIE_DATA, (v));
78	spin_unlock_irqrestore(&rdev->pcie_idx_lock, flags);
79}
80
81/*
82 * rv370,rv380 PCIE GART
83 */
84static void rv370_debugfs_pcie_gart_info_init(struct radeon_device *rdev);
85
86void rv370_pcie_gart_tlb_flush(struct radeon_device *rdev)
87{
88	uint32_t tmp;
89	int i;
90
91	/* Workaround HW bug do flush 2 times */
92	for (i = 0; i < 2; i++) {
93		tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
94		WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp | RADEON_PCIE_TX_GART_INVALIDATE_TLB);
95		(void)RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
96		WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
97	}
98	mb();
99}
100
101#define R300_PTE_UNSNOOPED (1 << 0)
102#define R300_PTE_WRITEABLE (1 << 2)
103#define R300_PTE_READABLE  (1 << 3)
104
105uint64_t rv370_pcie_gart_get_page_entry(uint64_t addr, uint32_t flags)
106{
107	addr = (lower_32_bits(addr) >> 8) |
108		((upper_32_bits(addr) & 0xff) << 24);
109	if (flags & RADEON_GART_PAGE_READ)
110		addr |= R300_PTE_READABLE;
111	if (flags & RADEON_GART_PAGE_WRITE)
112		addr |= R300_PTE_WRITEABLE;
113	if (!(flags & RADEON_GART_PAGE_SNOOP))
114		addr |= R300_PTE_UNSNOOPED;
115	return addr;
116}
117
118void rv370_pcie_gart_set_page(struct radeon_device *rdev, unsigned i,
119			      uint64_t entry)
120{
121	void __iomem *ptr = rdev->gart.ptr;
122
123	/* on x86 we want this to be CPU endian, on powerpc
124	 * on powerpc without HW swappers, it'll get swapped on way
125	 * into VRAM - so no need for cpu_to_le32 on VRAM tables */
126	writel(entry, ((void __iomem *)ptr) + (i * 4));
127}
128
129int rv370_pcie_gart_init(struct radeon_device *rdev)
130{
131	int r;
132
133	if (rdev->gart.robj) {
134		WARN(1, "RV370 PCIE GART already initialized\n");
135		return 0;
136	}
137	/* Initialize common gart structure */
138	r = radeon_gart_init(rdev);
139	if (r)
140		return r;
141	rv370_debugfs_pcie_gart_info_init(rdev);
142
143	rdev->gart.table_size = rdev->gart.num_gpu_pages * 4;
144	rdev->asic->gart.tlb_flush = &rv370_pcie_gart_tlb_flush;
145	rdev->asic->gart.get_page_entry = &rv370_pcie_gart_get_page_entry;
146	rdev->asic->gart.set_page = &rv370_pcie_gart_set_page;
147	return radeon_gart_table_vram_alloc(rdev);
148}
149
150int rv370_pcie_gart_enable(struct radeon_device *rdev)
151{
152	uint32_t table_addr;
153	uint32_t tmp;
154	int r;
155
156	if (rdev->gart.robj == NULL) {
157		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
158		return -EINVAL;
159	}
160	r = radeon_gart_table_vram_pin(rdev);
161	if (r)
162		return r;
163	/* discard memory request outside of configured range */
164	tmp = RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
165	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
166	WREG32_PCIE(RADEON_PCIE_TX_GART_START_LO, rdev->mc.gtt_start);
167	tmp = rdev->mc.gtt_end & ~RADEON_GPU_PAGE_MASK;
168	WREG32_PCIE(RADEON_PCIE_TX_GART_END_LO, tmp);
169	WREG32_PCIE(RADEON_PCIE_TX_GART_START_HI, 0);
170	WREG32_PCIE(RADEON_PCIE_TX_GART_END_HI, 0);
171	table_addr = rdev->gart.table_addr;
172	WREG32_PCIE(RADEON_PCIE_TX_GART_BASE, table_addr);
173	/* FIXME: setup default page */
174	WREG32_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_LO, rdev->mc.vram_start);
175	WREG32_PCIE(RADEON_PCIE_TX_DISCARD_RD_ADDR_HI, 0);
176	/* Clear error */
177	WREG32_PCIE(RADEON_PCIE_TX_GART_ERROR, 0);
178	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
179	tmp |= RADEON_PCIE_TX_GART_EN;
180	tmp |= RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
181	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
182	rv370_pcie_gart_tlb_flush(rdev);
183	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
184		 (unsigned)(rdev->mc.gtt_size >> 20),
185		 (unsigned long long)table_addr);
186	rdev->gart.ready = true;
187	return 0;
188}
189
190void rv370_pcie_gart_disable(struct radeon_device *rdev)
191{
192	u32 tmp;
193
194	WREG32_PCIE(RADEON_PCIE_TX_GART_START_LO, 0);
195	WREG32_PCIE(RADEON_PCIE_TX_GART_END_LO, 0);
196	WREG32_PCIE(RADEON_PCIE_TX_GART_START_HI, 0);
197	WREG32_PCIE(RADEON_PCIE_TX_GART_END_HI, 0);
198	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
199	tmp |= RADEON_PCIE_TX_GART_UNMAPPED_ACCESS_DISCARD;
200	WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp & ~RADEON_PCIE_TX_GART_EN);
201	radeon_gart_table_vram_unpin(rdev);
202}
203
204void rv370_pcie_gart_fini(struct radeon_device *rdev)
205{
206	radeon_gart_fini(rdev);
207	rv370_pcie_gart_disable(rdev);
208	radeon_gart_table_vram_free(rdev);
209}
210
211void r300_fence_ring_emit(struct radeon_device *rdev,
212			  struct radeon_fence *fence)
213{
214	struct radeon_ring *ring = &rdev->ring[fence->ring];
215
216	/* Who ever call radeon_fence_emit should call ring_lock and ask
217	 * for enough space (today caller are ib schedule and buffer move) */
218	/* Write SC register so SC & US assert idle */
219	radeon_ring_write(ring, PACKET0(R300_RE_SCISSORS_TL, 0));
220	radeon_ring_write(ring, 0);
221	radeon_ring_write(ring, PACKET0(R300_RE_SCISSORS_BR, 0));
222	radeon_ring_write(ring, 0);
223	/* Flush 3D cache */
224	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
225	radeon_ring_write(ring, R300_RB3D_DC_FLUSH);
226	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
227	radeon_ring_write(ring, R300_ZC_FLUSH);
228	/* Wait until IDLE & CLEAN */
229	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
230	radeon_ring_write(ring, (RADEON_WAIT_3D_IDLECLEAN |
231				 RADEON_WAIT_2D_IDLECLEAN |
232				 RADEON_WAIT_DMA_GUI_IDLE));
233	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
234	radeon_ring_write(ring, rdev->config.r300.hdp_cntl |
235				RADEON_HDP_READ_BUFFER_INVALIDATE);
236	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
237	radeon_ring_write(ring, rdev->config.r300.hdp_cntl);
238	/* Emit fence sequence & fire IRQ */
239	radeon_ring_write(ring, PACKET0(rdev->fence_drv[fence->ring].scratch_reg, 0));
240	radeon_ring_write(ring, fence->seq);
241	radeon_ring_write(ring, PACKET0(RADEON_GEN_INT_STATUS, 0));
242	radeon_ring_write(ring, RADEON_SW_INT_FIRE);
243}
244
245void r300_ring_start(struct radeon_device *rdev, struct radeon_ring *ring)
246{
247	unsigned gb_tile_config;
248	int r;
249
250	/* Sub pixel 1/12 so we can have 4K rendering according to doc */
251	gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16);
252	switch (rdev->num_gb_pipes) {
253	case 2:
254		gb_tile_config |= R300_PIPE_COUNT_R300;
255		break;
256	case 3:
257		gb_tile_config |= R300_PIPE_COUNT_R420_3P;
258		break;
259	case 4:
260		gb_tile_config |= R300_PIPE_COUNT_R420;
261		break;
262	case 1:
263	default:
264		gb_tile_config |= R300_PIPE_COUNT_RV350;
265		break;
266	}
267
268	r = radeon_ring_lock(rdev, ring, 64);
269	if (r) {
270		return;
271	}
272	radeon_ring_write(ring, PACKET0(RADEON_ISYNC_CNTL, 0));
273	radeon_ring_write(ring,
274			  RADEON_ISYNC_ANY2D_IDLE3D |
275			  RADEON_ISYNC_ANY3D_IDLE2D |
276			  RADEON_ISYNC_WAIT_IDLEGUI |
277			  RADEON_ISYNC_CPSCRATCH_IDLEGUI);
278	radeon_ring_write(ring, PACKET0(R300_GB_TILE_CONFIG, 0));
279	radeon_ring_write(ring, gb_tile_config);
280	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
281	radeon_ring_write(ring,
282			  RADEON_WAIT_2D_IDLECLEAN |
283			  RADEON_WAIT_3D_IDLECLEAN);
284	radeon_ring_write(ring, PACKET0(R300_DST_PIPE_CONFIG, 0));
285	radeon_ring_write(ring, R300_PIPE_AUTO_CONFIG);
286	radeon_ring_write(ring, PACKET0(R300_GB_SELECT, 0));
287	radeon_ring_write(ring, 0);
288	radeon_ring_write(ring, PACKET0(R300_GB_ENABLE, 0));
289	radeon_ring_write(ring, 0);
290	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
291	radeon_ring_write(ring, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
292	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
293	radeon_ring_write(ring, R300_ZC_FLUSH | R300_ZC_FREE);
294	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
295	radeon_ring_write(ring,
296			  RADEON_WAIT_2D_IDLECLEAN |
297			  RADEON_WAIT_3D_IDLECLEAN);
298	radeon_ring_write(ring, PACKET0(R300_GB_AA_CONFIG, 0));
299	radeon_ring_write(ring, 0);
300	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
301	radeon_ring_write(ring, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
302	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
303	radeon_ring_write(ring, R300_ZC_FLUSH | R300_ZC_FREE);
304	radeon_ring_write(ring, PACKET0(R300_GB_MSPOS0, 0));
305	radeon_ring_write(ring,
306			  ((6 << R300_MS_X0_SHIFT) |
307			   (6 << R300_MS_Y0_SHIFT) |
308			   (6 << R300_MS_X1_SHIFT) |
309			   (6 << R300_MS_Y1_SHIFT) |
310			   (6 << R300_MS_X2_SHIFT) |
311			   (6 << R300_MS_Y2_SHIFT) |
312			   (6 << R300_MSBD0_Y_SHIFT) |
313			   (6 << R300_MSBD0_X_SHIFT)));
314	radeon_ring_write(ring, PACKET0(R300_GB_MSPOS1, 0));
315	radeon_ring_write(ring,
316			  ((6 << R300_MS_X3_SHIFT) |
317			   (6 << R300_MS_Y3_SHIFT) |
318			   (6 << R300_MS_X4_SHIFT) |
319			   (6 << R300_MS_Y4_SHIFT) |
320			   (6 << R300_MS_X5_SHIFT) |
321			   (6 << R300_MS_Y5_SHIFT) |
322			   (6 << R300_MSBD1_SHIFT)));
323	radeon_ring_write(ring, PACKET0(R300_GA_ENHANCE, 0));
324	radeon_ring_write(ring, R300_GA_DEADLOCK_CNTL | R300_GA_FASTSYNC_CNTL);
325	radeon_ring_write(ring, PACKET0(R300_GA_POLY_MODE, 0));
326	radeon_ring_write(ring,
327			  R300_FRONT_PTYPE_TRIANGE | R300_BACK_PTYPE_TRIANGE);
328	radeon_ring_write(ring, PACKET0(R300_GA_ROUND_MODE, 0));
329	radeon_ring_write(ring,
330			  R300_GEOMETRY_ROUND_NEAREST |
331			  R300_COLOR_ROUND_NEAREST);
332	radeon_ring_unlock_commit(rdev, ring, false);
333}
334
335static void r300_errata(struct radeon_device *rdev)
336{
337	rdev->pll_errata = 0;
338
339	if (rdev->family == CHIP_R300 &&
340	    (RREG32(RADEON_CONFIG_CNTL) & RADEON_CFG_ATI_REV_ID_MASK) == RADEON_CFG_ATI_REV_A11) {
341		rdev->pll_errata |= CHIP_ERRATA_R300_CG;
342	}
343}
344
345int r300_mc_wait_for_idle(struct radeon_device *rdev)
346{
347	unsigned i;
348	uint32_t tmp;
349
350	for (i = 0; i < rdev->usec_timeout; i++) {
351		/* read MC_STATUS */
352		tmp = RREG32(RADEON_MC_STATUS);
353		if (tmp & R300_MC_IDLE) {
354			return 0;
355		}
356		udelay(1);
357	}
358	return -1;
359}
360
361static void r300_gpu_init(struct radeon_device *rdev)
362{
363	uint32_t gb_tile_config, tmp;
364
365	if ((rdev->family == CHIP_R300 && rdev->pdev->device != 0x4144) ||
366	    (rdev->family == CHIP_R350 && rdev->pdev->device != 0x4148)) {
367		/* r300,r350 */
368		rdev->num_gb_pipes = 2;
369	} else {
370		/* rv350,rv370,rv380,r300 AD, r350 AH */
371		rdev->num_gb_pipes = 1;
372	}
373	rdev->num_z_pipes = 1;
374	gb_tile_config = (R300_ENABLE_TILING | R300_TILE_SIZE_16);
375	switch (rdev->num_gb_pipes) {
376	case 2:
377		gb_tile_config |= R300_PIPE_COUNT_R300;
378		break;
379	case 3:
380		gb_tile_config |= R300_PIPE_COUNT_R420_3P;
381		break;
382	case 4:
383		gb_tile_config |= R300_PIPE_COUNT_R420;
384		break;
385	default:
386	case 1:
387		gb_tile_config |= R300_PIPE_COUNT_RV350;
388		break;
389	}
390	WREG32(R300_GB_TILE_CONFIG, gb_tile_config);
391
392	if (r100_gui_wait_for_idle(rdev)) {
393		pr_warn("Failed to wait GUI idle while programming pipes. Bad things might happen.\n");
394	}
395
396	tmp = RREG32(R300_DST_PIPE_CONFIG);
397	WREG32(R300_DST_PIPE_CONFIG, tmp | R300_PIPE_AUTO_CONFIG);
398
399	WREG32(R300_RB2D_DSTCACHE_MODE,
400	       R300_DC_AUTOFLUSH_ENABLE |
401	       R300_DC_DC_DISABLE_IGNORE_PE);
402
403	if (r100_gui_wait_for_idle(rdev)) {
404		pr_warn("Failed to wait GUI idle while programming pipes. Bad things might happen.\n");
405	}
406	if (r300_mc_wait_for_idle(rdev)) {
407		pr_warn("Failed to wait MC idle while programming pipes. Bad things might happen.\n");
408	}
409	DRM_INFO("radeon: %d quad pipes, %d Z pipes initialized\n",
410		 rdev->num_gb_pipes, rdev->num_z_pipes);
411}
412
413int r300_asic_reset(struct radeon_device *rdev, bool hard)
414{
415	struct r100_mc_save save;
416	u32 status, tmp;
417	int ret = 0;
418
419	status = RREG32(R_000E40_RBBM_STATUS);
420	if (!G_000E40_GUI_ACTIVE(status)) {
421		return 0;
422	}
423	r100_mc_stop(rdev, &save);
424	status = RREG32(R_000E40_RBBM_STATUS);
425	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
426	/* stop CP */
427	WREG32(RADEON_CP_CSQ_CNTL, 0);
428	tmp = RREG32(RADEON_CP_RB_CNTL);
429	WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA);
430	WREG32(RADEON_CP_RB_RPTR_WR, 0);
431	WREG32(RADEON_CP_RB_WPTR, 0);
432	WREG32(RADEON_CP_RB_CNTL, tmp);
433	/* save PCI state */
434	pci_save_state(rdev->pdev);
435	/* disable bus mastering */
436	r100_bm_disable(rdev);
437	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_VAP(1) |
438					S_0000F0_SOFT_RESET_GA(1));
439	RREG32(R_0000F0_RBBM_SOFT_RESET);
440	mdelay(500);
441	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
442	mdelay(1);
443	status = RREG32(R_000E40_RBBM_STATUS);
444	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
445	/* resetting the CP seems to be problematic sometimes it end up
446	 * hard locking the computer, but it's necessary for successful
447	 * reset more test & playing is needed on R3XX/R4XX to find a
448	 * reliable (if any solution)
449	 */
450	WREG32(R_0000F0_RBBM_SOFT_RESET, S_0000F0_SOFT_RESET_CP(1));
451	RREG32(R_0000F0_RBBM_SOFT_RESET);
452	mdelay(500);
453	WREG32(R_0000F0_RBBM_SOFT_RESET, 0);
454	mdelay(1);
455	status = RREG32(R_000E40_RBBM_STATUS);
456	dev_info(rdev->dev, "(%s:%d) RBBM_STATUS=0x%08X\n", __func__, __LINE__, status);
457	/* restore PCI & busmastering */
458	pci_restore_state(rdev->pdev);
459	r100_enable_bm(rdev);
460	/* Check if GPU is idle */
461	if (G_000E40_GA_BUSY(status) || G_000E40_VAP_BUSY(status)) {
462		dev_err(rdev->dev, "failed to reset GPU\n");
463		ret = -1;
464	} else
465		dev_info(rdev->dev, "GPU reset succeed\n");
466	r100_mc_resume(rdev, &save);
467	return ret;
468}
469
470/*
471 * r300,r350,rv350,rv380 VRAM info
472 */
473void r300_mc_init(struct radeon_device *rdev)
474{
475	u64 base;
476	u32 tmp;
477
478	/* DDR for all card after R300 & IGP */
479	rdev->mc.vram_is_ddr = true;
480	tmp = RREG32(RADEON_MEM_CNTL);
481	tmp &= R300_MEM_NUM_CHANNELS_MASK;
482	switch (tmp) {
483	case 0: rdev->mc.vram_width = 64; break;
484	case 1: rdev->mc.vram_width = 128; break;
485	case 2: rdev->mc.vram_width = 256; break;
486	default:  rdev->mc.vram_width = 128; break;
487	}
488	r100_vram_init_sizes(rdev);
489	base = rdev->mc.aper_base;
490	if (rdev->flags & RADEON_IS_IGP)
491		base = (RREG32(RADEON_NB_TOM) & 0xffff) << 16;
492	radeon_vram_location(rdev, &rdev->mc, base);
493	rdev->mc.gtt_base_align = 0;
494	if (!(rdev->flags & RADEON_IS_AGP))
495		radeon_gtt_location(rdev, &rdev->mc);
496	radeon_update_bandwidth_info(rdev);
497}
498
499void rv370_set_pcie_lanes(struct radeon_device *rdev, int lanes)
500{
501	uint32_t link_width_cntl, mask;
502
503	if (rdev->flags & RADEON_IS_IGP)
504		return;
505
506	if (!(rdev->flags & RADEON_IS_PCIE))
507		return;
508
509	/* FIXME wait for idle */
510
511	switch (lanes) {
512	case 0:
513		mask = RADEON_PCIE_LC_LINK_WIDTH_X0;
514		break;
515	case 1:
516		mask = RADEON_PCIE_LC_LINK_WIDTH_X1;
517		break;
518	case 2:
519		mask = RADEON_PCIE_LC_LINK_WIDTH_X2;
520		break;
521	case 4:
522		mask = RADEON_PCIE_LC_LINK_WIDTH_X4;
523		break;
524	case 8:
525		mask = RADEON_PCIE_LC_LINK_WIDTH_X8;
526		break;
527	case 12:
528		mask = RADEON_PCIE_LC_LINK_WIDTH_X12;
529		break;
530	case 16:
531	default:
532		mask = RADEON_PCIE_LC_LINK_WIDTH_X16;
533		break;
534	}
535
536	link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
537
538	if ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) ==
539	    (mask << RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT))
540		return;
541
542	link_width_cntl &= ~(RADEON_PCIE_LC_LINK_WIDTH_MASK |
543			     RADEON_PCIE_LC_RECONFIG_NOW |
544			     RADEON_PCIE_LC_RECONFIG_LATER |
545			     RADEON_PCIE_LC_SHORT_RECONFIG_EN);
546	link_width_cntl |= mask;
547	WREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
548	WREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL, (link_width_cntl |
549						     RADEON_PCIE_LC_RECONFIG_NOW));
550
551	/* wait for lane set to complete */
552	link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
553	while (link_width_cntl == 0xffffffff)
554		link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
555
556}
557
558int rv370_get_pcie_lanes(struct radeon_device *rdev)
559{
560	u32 link_width_cntl;
561
562	if (rdev->flags & RADEON_IS_IGP)
563		return 0;
564
565	if (!(rdev->flags & RADEON_IS_PCIE))
566		return 0;
567
568	/* FIXME wait for idle */
569
570	link_width_cntl = RREG32_PCIE(RADEON_PCIE_LC_LINK_WIDTH_CNTL);
571
572	switch ((link_width_cntl & RADEON_PCIE_LC_LINK_WIDTH_RD_MASK) >> RADEON_PCIE_LC_LINK_WIDTH_RD_SHIFT) {
573	case RADEON_PCIE_LC_LINK_WIDTH_X0:
574		return 0;
575	case RADEON_PCIE_LC_LINK_WIDTH_X1:
576		return 1;
577	case RADEON_PCIE_LC_LINK_WIDTH_X2:
578		return 2;
579	case RADEON_PCIE_LC_LINK_WIDTH_X4:
580		return 4;
581	case RADEON_PCIE_LC_LINK_WIDTH_X8:
582		return 8;
583	case RADEON_PCIE_LC_LINK_WIDTH_X16:
584	default:
585		return 16;
586	}
587}
588
589#if defined(CONFIG_DEBUG_FS)
590static int rv370_debugfs_pcie_gart_info_show(struct seq_file *m, void *unused)
591{
592	struct radeon_device *rdev = m->private;
593	uint32_t tmp;
594
595	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
596	seq_printf(m, "PCIE_TX_GART_CNTL 0x%08x\n", tmp);
597	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_BASE);
598	seq_printf(m, "PCIE_TX_GART_BASE 0x%08x\n", tmp);
599	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_START_LO);
600	seq_printf(m, "PCIE_TX_GART_START_LO 0x%08x\n", tmp);
601	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_START_HI);
602	seq_printf(m, "PCIE_TX_GART_START_HI 0x%08x\n", tmp);
603	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_END_LO);
604	seq_printf(m, "PCIE_TX_GART_END_LO 0x%08x\n", tmp);
605	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_END_HI);
606	seq_printf(m, "PCIE_TX_GART_END_HI 0x%08x\n", tmp);
607	tmp = RREG32_PCIE(RADEON_PCIE_TX_GART_ERROR);
608	seq_printf(m, "PCIE_TX_GART_ERROR 0x%08x\n", tmp);
609	return 0;
610}
611
612DEFINE_SHOW_ATTRIBUTE(rv370_debugfs_pcie_gart_info);
613#endif
614
615static void rv370_debugfs_pcie_gart_info_init(struct radeon_device *rdev)
616{
617#if defined(CONFIG_DEBUG_FS)
618	struct dentry *root = rdev->ddev->primary->debugfs_root;
619
620	debugfs_create_file("rv370_pcie_gart_info", 0444, root, rdev,
621			    &rv370_debugfs_pcie_gart_info_fops);
622#endif
623}
624
625static int r300_packet0_check(struct radeon_cs_parser *p,
626		struct radeon_cs_packet *pkt,
627		unsigned idx, unsigned reg)
628{
629	struct radeon_bo_list *reloc;
630	struct r100_cs_track *track;
631	volatile uint32_t *ib;
632	uint32_t tmp, tile_flags = 0;
633	unsigned i;
634	int r;
635	u32 idx_value;
636
637	ib = p->ib.ptr;
638	track = (struct r100_cs_track *)p->track;
639	idx_value = radeon_get_ib_value(p, idx);
640
641	switch (reg) {
642	case AVIVO_D1MODE_VLINE_START_END:
643	case RADEON_CRTC_GUI_TRIG_VLINE:
644		r = r100_cs_packet_parse_vline(p);
645		if (r) {
646			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
647					idx, reg);
648			radeon_cs_dump_packet(p, pkt);
649			return r;
650		}
651		break;
652	case RADEON_DST_PITCH_OFFSET:
653	case RADEON_SRC_PITCH_OFFSET:
654		r = r100_reloc_pitch_offset(p, pkt, idx, reg);
655		if (r)
656			return r;
657		break;
658	case R300_RB3D_COLOROFFSET0:
659	case R300_RB3D_COLOROFFSET1:
660	case R300_RB3D_COLOROFFSET2:
661	case R300_RB3D_COLOROFFSET3:
662		i = (reg - R300_RB3D_COLOROFFSET0) >> 2;
663		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
664		if (r) {
665			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
666					idx, reg);
667			radeon_cs_dump_packet(p, pkt);
668			return r;
669		}
670		track->cb[i].robj = reloc->robj;
671		track->cb[i].offset = idx_value;
672		track->cb_dirty = true;
673		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
674		break;
675	case R300_ZB_DEPTHOFFSET:
676		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
677		if (r) {
678			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
679					idx, reg);
680			radeon_cs_dump_packet(p, pkt);
681			return r;
682		}
683		track->zb.robj = reloc->robj;
684		track->zb.offset = idx_value;
685		track->zb_dirty = true;
686		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
687		break;
688	case R300_TX_OFFSET_0:
689	case R300_TX_OFFSET_0+4:
690	case R300_TX_OFFSET_0+8:
691	case R300_TX_OFFSET_0+12:
692	case R300_TX_OFFSET_0+16:
693	case R300_TX_OFFSET_0+20:
694	case R300_TX_OFFSET_0+24:
695	case R300_TX_OFFSET_0+28:
696	case R300_TX_OFFSET_0+32:
697	case R300_TX_OFFSET_0+36:
698	case R300_TX_OFFSET_0+40:
699	case R300_TX_OFFSET_0+44:
700	case R300_TX_OFFSET_0+48:
701	case R300_TX_OFFSET_0+52:
702	case R300_TX_OFFSET_0+56:
703	case R300_TX_OFFSET_0+60:
704		i = (reg - R300_TX_OFFSET_0) >> 2;
705		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
706		if (r) {
707			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
708					idx, reg);
709			radeon_cs_dump_packet(p, pkt);
710			return r;
711		}
712
713		if (p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) {
714			ib[idx] = (idx_value & 31) | /* keep the 1st 5 bits */
715				  ((idx_value & ~31) + (u32)reloc->gpu_offset);
716		} else {
717			if (reloc->tiling_flags & RADEON_TILING_MACRO)
718				tile_flags |= R300_TXO_MACRO_TILE;
719			if (reloc->tiling_flags & RADEON_TILING_MICRO)
720				tile_flags |= R300_TXO_MICRO_TILE;
721			else if (reloc->tiling_flags & RADEON_TILING_MICRO_SQUARE)
722				tile_flags |= R300_TXO_MICRO_TILE_SQUARE;
723
724			tmp = idx_value + ((u32)reloc->gpu_offset);
725			tmp |= tile_flags;
726			ib[idx] = tmp;
727		}
728		track->textures[i].robj = reloc->robj;
729		track->tex_dirty = true;
730		break;
731	/* Tracked registers */
732	case 0x2084:
733		/* VAP_VF_CNTL */
734		track->vap_vf_cntl = idx_value;
735		break;
736	case 0x20B4:
737		/* VAP_VTX_SIZE */
738		track->vtx_size = idx_value & 0x7F;
739		break;
740	case 0x2134:
741		/* VAP_VF_MAX_VTX_INDX */
742		track->max_indx = idx_value & 0x00FFFFFFUL;
743		break;
744	case 0x2088:
745		/* VAP_ALT_NUM_VERTICES - only valid on r500 */
746		if (p->rdev->family < CHIP_RV515)
747			goto fail;
748		track->vap_alt_nverts = idx_value & 0xFFFFFF;
749		break;
750	case 0x43E4:
751		/* SC_SCISSOR1 */
752		track->maxy = ((idx_value >> 13) & 0x1FFF) + 1;
753		if (p->rdev->family < CHIP_RV515) {
754			track->maxy -= 1440;
755		}
756		track->cb_dirty = true;
757		track->zb_dirty = true;
758		break;
759	case 0x4E00:
760		/* RB3D_CCTL */
761		if ((idx_value & (1 << 10)) && /* CMASK_ENABLE */
762		    p->rdev->cmask_filp != p->filp) {
763			DRM_ERROR("Invalid RB3D_CCTL: Cannot enable CMASK.\n");
764			return -EINVAL;
765		}
766		track->num_cb = ((idx_value >> 5) & 0x3) + 1;
767		track->cb_dirty = true;
768		break;
769	case 0x4E38:
770	case 0x4E3C:
771	case 0x4E40:
772	case 0x4E44:
773		/* RB3D_COLORPITCH0 */
774		/* RB3D_COLORPITCH1 */
775		/* RB3D_COLORPITCH2 */
776		/* RB3D_COLORPITCH3 */
777		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
778			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
779			if (r) {
780				DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
781					  idx, reg);
782				radeon_cs_dump_packet(p, pkt);
783				return r;
784			}
785
786			if (reloc->tiling_flags & RADEON_TILING_MACRO)
787				tile_flags |= R300_COLOR_TILE_ENABLE;
788			if (reloc->tiling_flags & RADEON_TILING_MICRO)
789				tile_flags |= R300_COLOR_MICROTILE_ENABLE;
790			else if (reloc->tiling_flags & RADEON_TILING_MICRO_SQUARE)
791				tile_flags |= R300_COLOR_MICROTILE_SQUARE_ENABLE;
792
793			tmp = idx_value & ~(0x7 << 16);
794			tmp |= tile_flags;
795			ib[idx] = tmp;
796		}
797		i = (reg - 0x4E38) >> 2;
798		track->cb[i].pitch = idx_value & 0x3FFE;
799		switch (((idx_value >> 21) & 0xF)) {
800		case 9:
801		case 11:
802		case 12:
803			track->cb[i].cpp = 1;
804			break;
805		case 3:
806		case 4:
807		case 13:
808		case 15:
809			track->cb[i].cpp = 2;
810			break;
811		case 5:
812			if (p->rdev->family < CHIP_RV515) {
813				DRM_ERROR("Invalid color buffer format (%d)!\n",
814					  ((idx_value >> 21) & 0xF));
815				return -EINVAL;
816			}
817			fallthrough;
818		case 6:
819			track->cb[i].cpp = 4;
820			break;
821		case 10:
822			track->cb[i].cpp = 8;
823			break;
824		case 7:
825			track->cb[i].cpp = 16;
826			break;
827		default:
828			DRM_ERROR("Invalid color buffer format (%d) !\n",
829				  ((idx_value >> 21) & 0xF));
830			return -EINVAL;
831		}
832		track->cb_dirty = true;
833		break;
834	case 0x4F00:
835		/* ZB_CNTL */
836		if (idx_value & 2) {
837			track->z_enabled = true;
838		} else {
839			track->z_enabled = false;
840		}
841		track->zb_dirty = true;
842		break;
843	case 0x4F10:
844		/* ZB_FORMAT */
845		switch ((idx_value & 0xF)) {
846		case 0:
847		case 1:
848			track->zb.cpp = 2;
849			break;
850		case 2:
851			track->zb.cpp = 4;
852			break;
853		default:
854			DRM_ERROR("Invalid z buffer format (%d) !\n",
855				  (idx_value & 0xF));
856			return -EINVAL;
857		}
858		track->zb_dirty = true;
859		break;
860	case 0x4F24:
861		/* ZB_DEPTHPITCH */
862		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
863			r = radeon_cs_packet_next_reloc(p, &reloc, 0);
864			if (r) {
865				DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
866					  idx, reg);
867				radeon_cs_dump_packet(p, pkt);
868				return r;
869			}
870
871			if (reloc->tiling_flags & RADEON_TILING_MACRO)
872				tile_flags |= R300_DEPTHMACROTILE_ENABLE;
873			if (reloc->tiling_flags & RADEON_TILING_MICRO)
874				tile_flags |= R300_DEPTHMICROTILE_TILED;
875			else if (reloc->tiling_flags & RADEON_TILING_MICRO_SQUARE)
876				tile_flags |= R300_DEPTHMICROTILE_TILED_SQUARE;
877
878			tmp = idx_value & ~(0x7 << 16);
879			tmp |= tile_flags;
880			ib[idx] = tmp;
881		}
882		track->zb.pitch = idx_value & 0x3FFC;
883		track->zb_dirty = true;
884		break;
885	case 0x4104:
886		/* TX_ENABLE */
887		for (i = 0; i < 16; i++) {
888			bool enabled;
889
890			enabled = !!(idx_value & (1 << i));
891			track->textures[i].enabled = enabled;
892		}
893		track->tex_dirty = true;
894		break;
895	case 0x44C0:
896	case 0x44C4:
897	case 0x44C8:
898	case 0x44CC:
899	case 0x44D0:
900	case 0x44D4:
901	case 0x44D8:
902	case 0x44DC:
903	case 0x44E0:
904	case 0x44E4:
905	case 0x44E8:
906	case 0x44EC:
907	case 0x44F0:
908	case 0x44F4:
909	case 0x44F8:
910	case 0x44FC:
911		/* TX_FORMAT1_[0-15] */
912		i = (reg - 0x44C0) >> 2;
913		tmp = (idx_value >> 25) & 0x3;
914		track->textures[i].tex_coord_type = tmp;
915		switch ((idx_value & 0x1F)) {
916		case R300_TX_FORMAT_X8:
917		case R300_TX_FORMAT_Y4X4:
918		case R300_TX_FORMAT_Z3Y3X2:
919			track->textures[i].cpp = 1;
920			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
921			break;
922		case R300_TX_FORMAT_X16:
923		case R300_TX_FORMAT_FL_I16:
924		case R300_TX_FORMAT_Y8X8:
925		case R300_TX_FORMAT_Z5Y6X5:
926		case R300_TX_FORMAT_Z6Y5X5:
927		case R300_TX_FORMAT_W4Z4Y4X4:
928		case R300_TX_FORMAT_W1Z5Y5X5:
929		case R300_TX_FORMAT_D3DMFT_CxV8U8:
930		case R300_TX_FORMAT_B8G8_B8G8:
931		case R300_TX_FORMAT_G8R8_G8B8:
932			track->textures[i].cpp = 2;
933			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
934			break;
935		case R300_TX_FORMAT_Y16X16:
936		case R300_TX_FORMAT_FL_I16A16:
937		case R300_TX_FORMAT_Z11Y11X10:
938		case R300_TX_FORMAT_Z10Y11X11:
939		case R300_TX_FORMAT_W8Z8Y8X8:
940		case R300_TX_FORMAT_W2Z10Y10X10:
941		case 0x17:
942		case R300_TX_FORMAT_FL_I32:
943		case 0x1e:
944			track->textures[i].cpp = 4;
945			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
946			break;
947		case R300_TX_FORMAT_W16Z16Y16X16:
948		case R300_TX_FORMAT_FL_R16G16B16A16:
949		case R300_TX_FORMAT_FL_I32A32:
950			track->textures[i].cpp = 8;
951			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
952			break;
953		case R300_TX_FORMAT_FL_R32G32B32A32:
954			track->textures[i].cpp = 16;
955			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
956			break;
957		case R300_TX_FORMAT_DXT1:
958			track->textures[i].cpp = 1;
959			track->textures[i].compress_format = R100_TRACK_COMP_DXT1;
960			break;
961		case R300_TX_FORMAT_ATI2N:
962			if (p->rdev->family < CHIP_R420) {
963				DRM_ERROR("Invalid texture format %u\n",
964					  (idx_value & 0x1F));
965				return -EINVAL;
966			}
967			/* The same rules apply as for DXT3/5. */
968			fallthrough;
969		case R300_TX_FORMAT_DXT3:
970		case R300_TX_FORMAT_DXT5:
971			track->textures[i].cpp = 1;
972			track->textures[i].compress_format = R100_TRACK_COMP_DXT35;
973			break;
974		default:
975			DRM_ERROR("Invalid texture format %u\n",
976				  (idx_value & 0x1F));
977			return -EINVAL;
978		}
979		track->tex_dirty = true;
980		break;
981	case 0x4400:
982	case 0x4404:
983	case 0x4408:
984	case 0x440C:
985	case 0x4410:
986	case 0x4414:
987	case 0x4418:
988	case 0x441C:
989	case 0x4420:
990	case 0x4424:
991	case 0x4428:
992	case 0x442C:
993	case 0x4430:
994	case 0x4434:
995	case 0x4438:
996	case 0x443C:
997		/* TX_FILTER0_[0-15] */
998		i = (reg - 0x4400) >> 2;
999		tmp = idx_value & 0x7;
1000		if (tmp == 2 || tmp == 4 || tmp == 6) {
1001			track->textures[i].roundup_w = false;
1002		}
1003		tmp = (idx_value >> 3) & 0x7;
1004		if (tmp == 2 || tmp == 4 || tmp == 6) {
1005			track->textures[i].roundup_h = false;
1006		}
1007		track->tex_dirty = true;
1008		break;
1009	case 0x4500:
1010	case 0x4504:
1011	case 0x4508:
1012	case 0x450C:
1013	case 0x4510:
1014	case 0x4514:
1015	case 0x4518:
1016	case 0x451C:
1017	case 0x4520:
1018	case 0x4524:
1019	case 0x4528:
1020	case 0x452C:
1021	case 0x4530:
1022	case 0x4534:
1023	case 0x4538:
1024	case 0x453C:
1025		/* TX_FORMAT2_[0-15] */
1026		i = (reg - 0x4500) >> 2;
1027		tmp = idx_value & 0x3FFF;
1028		track->textures[i].pitch = tmp + 1;
1029		if (p->rdev->family >= CHIP_RV515) {
1030			tmp = ((idx_value >> 15) & 1) << 11;
1031			track->textures[i].width_11 = tmp;
1032			tmp = ((idx_value >> 16) & 1) << 11;
1033			track->textures[i].height_11 = tmp;
1034
1035			/* ATI1N */
1036			if (idx_value & (1 << 14)) {
1037				/* The same rules apply as for DXT1. */
1038				track->textures[i].compress_format =
1039					R100_TRACK_COMP_DXT1;
1040			}
1041		} else if (idx_value & (1 << 14)) {
1042			DRM_ERROR("Forbidden bit TXFORMAT_MSB\n");
1043			return -EINVAL;
1044		}
1045		track->tex_dirty = true;
1046		break;
1047	case 0x4480:
1048	case 0x4484:
1049	case 0x4488:
1050	case 0x448C:
1051	case 0x4490:
1052	case 0x4494:
1053	case 0x4498:
1054	case 0x449C:
1055	case 0x44A0:
1056	case 0x44A4:
1057	case 0x44A8:
1058	case 0x44AC:
1059	case 0x44B0:
1060	case 0x44B4:
1061	case 0x44B8:
1062	case 0x44BC:
1063		/* TX_FORMAT0_[0-15] */
1064		i = (reg - 0x4480) >> 2;
1065		tmp = idx_value & 0x7FF;
1066		track->textures[i].width = tmp + 1;
1067		tmp = (idx_value >> 11) & 0x7FF;
1068		track->textures[i].height = tmp + 1;
1069		tmp = (idx_value >> 26) & 0xF;
1070		track->textures[i].num_levels = tmp;
1071		tmp = idx_value & (1 << 31);
1072		track->textures[i].use_pitch = !!tmp;
1073		tmp = (idx_value >> 22) & 0xF;
1074		track->textures[i].txdepth = tmp;
1075		track->tex_dirty = true;
1076		break;
1077	case R300_ZB_ZPASS_ADDR:
1078		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1079		if (r) {
1080			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1081					idx, reg);
1082			radeon_cs_dump_packet(p, pkt);
1083			return r;
1084		}
1085		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
1086		break;
1087	case 0x4e0c:
1088		/* RB3D_COLOR_CHANNEL_MASK */
1089		track->color_channel_mask = idx_value;
1090		track->cb_dirty = true;
1091		break;
1092	case 0x43a4:
1093		/* SC_HYPERZ_EN */
1094		/* r300c emits this register - we need to disable hyperz for it
1095		 * without complaining */
1096		if (p->rdev->hyperz_filp != p->filp) {
1097			if (idx_value & 0x1)
1098				ib[idx] = idx_value & ~1;
1099		}
1100		break;
1101	case 0x4f1c:
1102		/* ZB_BW_CNTL */
1103		track->zb_cb_clear = !!(idx_value & (1 << 5));
1104		track->cb_dirty = true;
1105		track->zb_dirty = true;
1106		if (p->rdev->hyperz_filp != p->filp) {
1107			if (idx_value & (R300_HIZ_ENABLE |
1108					 R300_RD_COMP_ENABLE |
1109					 R300_WR_COMP_ENABLE |
1110					 R300_FAST_FILL_ENABLE))
1111				goto fail;
1112		}
1113		break;
1114	case 0x4e04:
1115		/* RB3D_BLENDCNTL */
1116		track->blend_read_enable = !!(idx_value & (1 << 2));
1117		track->cb_dirty = true;
1118		break;
1119	case R300_RB3D_AARESOLVE_OFFSET:
1120		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1121		if (r) {
1122			DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
1123				  idx, reg);
1124			radeon_cs_dump_packet(p, pkt);
1125			return r;
1126		}
1127		track->aa.robj = reloc->robj;
1128		track->aa.offset = idx_value;
1129		track->aa_dirty = true;
1130		ib[idx] = idx_value + ((u32)reloc->gpu_offset);
1131		break;
1132	case R300_RB3D_AARESOLVE_PITCH:
1133		track->aa.pitch = idx_value & 0x3FFE;
1134		track->aa_dirty = true;
1135		break;
1136	case R300_RB3D_AARESOLVE_CTL:
1137		track->aaresolve = idx_value & 0x1;
1138		track->aa_dirty = true;
1139		break;
1140	case 0x4f30: /* ZB_MASK_OFFSET */
1141	case 0x4f34: /* ZB_ZMASK_PITCH */
1142	case 0x4f44: /* ZB_HIZ_OFFSET */
1143	case 0x4f54: /* ZB_HIZ_PITCH */
1144		if (idx_value && (p->rdev->hyperz_filp != p->filp))
1145			goto fail;
1146		break;
1147	case 0x4028:
1148		if (idx_value && (p->rdev->hyperz_filp != p->filp))
1149			goto fail;
1150		/* GB_Z_PEQ_CONFIG */
1151		if (p->rdev->family >= CHIP_RV350)
1152			break;
1153		goto fail;
1154		break;
1155	case 0x4be8:
1156		/* valid register only on RV530 */
1157		if (p->rdev->family == CHIP_RV530)
1158			break;
1159		fallthrough;
1160		/* fallthrough do not move */
1161	default:
1162		goto fail;
1163	}
1164	return 0;
1165fail:
1166	pr_err("Forbidden register 0x%04X in cs at %d (val=%08x)\n",
1167	       reg, idx, idx_value);
1168	return -EINVAL;
1169}
1170
1171static int r300_packet3_check(struct radeon_cs_parser *p,
1172			      struct radeon_cs_packet *pkt)
1173{
1174	struct radeon_bo_list *reloc;
1175	struct r100_cs_track *track;
1176	volatile uint32_t *ib;
1177	unsigned idx;
1178	int r;
1179
1180	ib = p->ib.ptr;
1181	idx = pkt->idx + 1;
1182	track = (struct r100_cs_track *)p->track;
1183	switch (pkt->opcode) {
1184	case PACKET3_3D_LOAD_VBPNTR:
1185		r = r100_packet3_load_vbpntr(p, pkt, idx);
1186		if (r)
1187			return r;
1188		break;
1189	case PACKET3_INDX_BUFFER:
1190		r = radeon_cs_packet_next_reloc(p, &reloc, 0);
1191		if (r) {
1192			DRM_ERROR("No reloc for packet3 %d\n", pkt->opcode);
1193			radeon_cs_dump_packet(p, pkt);
1194			return r;
1195		}
1196		ib[idx+1] = radeon_get_ib_value(p, idx + 1) + ((u32)reloc->gpu_offset);
1197		r = r100_cs_track_check_pkt3_indx_buffer(p, pkt, reloc->robj);
1198		if (r) {
1199			return r;
1200		}
1201		break;
1202	/* Draw packet */
1203	case PACKET3_3D_DRAW_IMMD:
1204		/* Number of dwords is vtx_size * (num_vertices - 1)
1205		 * PRIM_WALK must be equal to 3 vertex data in embedded
1206		 * in cmd stream */
1207		if (((radeon_get_ib_value(p, idx + 1) >> 4) & 0x3) != 3) {
1208			DRM_ERROR("PRIM_WALK must be 3 for IMMD draw\n");
1209			return -EINVAL;
1210		}
1211		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
1212		track->immd_dwords = pkt->count - 1;
1213		r = r100_cs_track_check(p->rdev, track);
1214		if (r) {
1215			return r;
1216		}
1217		break;
1218	case PACKET3_3D_DRAW_IMMD_2:
1219		/* Number of dwords is vtx_size * (num_vertices - 1)
1220		 * PRIM_WALK must be equal to 3 vertex data in embedded
1221		 * in cmd stream */
1222		if (((radeon_get_ib_value(p, idx) >> 4) & 0x3) != 3) {
1223			DRM_ERROR("PRIM_WALK must be 3 for IMMD draw\n");
1224			return -EINVAL;
1225		}
1226		track->vap_vf_cntl = radeon_get_ib_value(p, idx);
1227		track->immd_dwords = pkt->count;
1228		r = r100_cs_track_check(p->rdev, track);
1229		if (r) {
1230			return r;
1231		}
1232		break;
1233	case PACKET3_3D_DRAW_VBUF:
1234		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
1235		r = r100_cs_track_check(p->rdev, track);
1236		if (r) {
1237			return r;
1238		}
1239		break;
1240	case PACKET3_3D_DRAW_VBUF_2:
1241		track->vap_vf_cntl = radeon_get_ib_value(p, idx);
1242		r = r100_cs_track_check(p->rdev, track);
1243		if (r) {
1244			return r;
1245		}
1246		break;
1247	case PACKET3_3D_DRAW_INDX:
1248		track->vap_vf_cntl = radeon_get_ib_value(p, idx + 1);
1249		r = r100_cs_track_check(p->rdev, track);
1250		if (r) {
1251			return r;
1252		}
1253		break;
1254	case PACKET3_3D_DRAW_INDX_2:
1255		track->vap_vf_cntl = radeon_get_ib_value(p, idx);
1256		r = r100_cs_track_check(p->rdev, track);
1257		if (r) {
1258			return r;
1259		}
1260		break;
1261	case PACKET3_3D_CLEAR_HIZ:
1262	case PACKET3_3D_CLEAR_ZMASK:
1263		if (p->rdev->hyperz_filp != p->filp)
1264			return -EINVAL;
1265		break;
1266	case PACKET3_3D_CLEAR_CMASK:
1267		if (p->rdev->cmask_filp != p->filp)
1268			return -EINVAL;
1269		break;
1270	case PACKET3_NOP:
1271		break;
1272	default:
1273		DRM_ERROR("Packet3 opcode %x not supported\n", pkt->opcode);
1274		return -EINVAL;
1275	}
1276	return 0;
1277}
1278
1279int r300_cs_parse(struct radeon_cs_parser *p)
1280{
1281	struct radeon_cs_packet pkt;
1282	struct r100_cs_track *track;
1283	int r;
1284
1285	track = kzalloc(sizeof(*track), GFP_KERNEL);
1286	if (track == NULL)
1287		return -ENOMEM;
1288	r100_cs_track_clear(p->rdev, track);
1289	p->track = track;
1290	do {
1291		r = radeon_cs_packet_parse(p, &pkt, p->idx);
1292		if (r) {
1293			return r;
1294		}
1295		p->idx += pkt.count + 2;
1296		switch (pkt.type) {
1297		case RADEON_PACKET_TYPE0:
1298			r = r100_cs_parse_packet0(p, &pkt,
1299						  p->rdev->config.r300.reg_safe_bm,
1300						  p->rdev->config.r300.reg_safe_bm_size,
1301						  &r300_packet0_check);
1302			break;
1303		case RADEON_PACKET_TYPE2:
1304			break;
1305		case RADEON_PACKET_TYPE3:
1306			r = r300_packet3_check(p, &pkt);
1307			break;
1308		default:
1309			DRM_ERROR("Unknown packet type %d !\n", pkt.type);
1310			return -EINVAL;
1311		}
1312		if (r) {
1313			return r;
1314		}
1315	} while (p->idx < p->chunk_ib->length_dw);
1316	return 0;
1317}
1318
1319void r300_set_reg_safe(struct radeon_device *rdev)
1320{
1321	rdev->config.r300.reg_safe_bm = r300_reg_safe_bm;
1322	rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(r300_reg_safe_bm);
1323}
1324
1325void r300_mc_program(struct radeon_device *rdev)
1326{
1327	struct r100_mc_save save;
1328
1329	r100_debugfs_mc_info_init(rdev);
1330
1331	/* Stops all mc clients */
1332	r100_mc_stop(rdev, &save);
1333	if (rdev->flags & RADEON_IS_AGP) {
1334		WREG32(R_00014C_MC_AGP_LOCATION,
1335			S_00014C_MC_AGP_START(rdev->mc.gtt_start >> 16) |
1336			S_00014C_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
1337		WREG32(R_000170_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
1338		WREG32(R_00015C_AGP_BASE_2,
1339			upper_32_bits(rdev->mc.agp_base) & 0xff);
1340	} else {
1341		WREG32(R_00014C_MC_AGP_LOCATION, 0x0FFFFFFF);
1342		WREG32(R_000170_AGP_BASE, 0);
1343		WREG32(R_00015C_AGP_BASE_2, 0);
1344	}
1345	/* Wait for mc idle */
1346	if (r300_mc_wait_for_idle(rdev))
1347		DRM_INFO("Failed to wait MC idle before programming MC.\n");
1348	/* Program MC, should be a 32bits limited address space */
1349	WREG32(R_000148_MC_FB_LOCATION,
1350		S_000148_MC_FB_START(rdev->mc.vram_start >> 16) |
1351		S_000148_MC_FB_TOP(rdev->mc.vram_end >> 16));
1352	r100_mc_resume(rdev, &save);
1353}
1354
1355void r300_clock_startup(struct radeon_device *rdev)
1356{
1357	u32 tmp;
1358
1359	if (radeon_dynclks != -1 && radeon_dynclks)
1360		radeon_legacy_set_clock_gating(rdev, 1);
1361	/* We need to force on some of the block */
1362	tmp = RREG32_PLL(R_00000D_SCLK_CNTL);
1363	tmp |= S_00000D_FORCE_CP(1) | S_00000D_FORCE_VIP(1);
1364	if ((rdev->family == CHIP_RV350) || (rdev->family == CHIP_RV380))
1365		tmp |= S_00000D_FORCE_VAP(1);
1366	WREG32_PLL(R_00000D_SCLK_CNTL, tmp);
1367}
1368
1369static int r300_startup(struct radeon_device *rdev)
1370{
1371	int r;
1372
1373	/* set common regs */
1374	r100_set_common_regs(rdev);
1375	/* program mc */
1376	r300_mc_program(rdev);
1377	/* Resume clock */
1378	r300_clock_startup(rdev);
1379	/* Initialize GPU configuration (# pipes, ...) */
1380	r300_gpu_init(rdev);
1381	/* Initialize GART (initialize after TTM so we can allocate
1382	 * memory through TTM but finalize after TTM) */
1383	if (rdev->flags & RADEON_IS_PCIE) {
1384		r = rv370_pcie_gart_enable(rdev);
1385		if (r)
1386			return r;
1387	}
1388
1389	if (rdev->family == CHIP_R300 ||
1390	    rdev->family == CHIP_R350 ||
1391	    rdev->family == CHIP_RV350)
1392		r100_enable_bm(rdev);
1393
1394	if (rdev->flags & RADEON_IS_PCI) {
1395		r = r100_pci_gart_enable(rdev);
1396		if (r)
1397			return r;
1398	}
1399
1400	/* allocate wb buffer */
1401	r = radeon_wb_init(rdev);
1402	if (r)
1403		return r;
1404
1405	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
1406	if (r) {
1407		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1408		return r;
1409	}
1410
1411	/* Enable IRQ */
1412	if (!rdev->irq.installed) {
1413		r = radeon_irq_kms_init(rdev);
1414		if (r)
1415			return r;
1416	}
1417
1418	r100_irq_set(rdev);
1419	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
1420	/* 1M ring buffer */
1421	r = r100_cp_init(rdev, 1024 * 1024);
1422	if (r) {
1423		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
1424		return r;
1425	}
1426
1427	r = radeon_ib_pool_init(rdev);
1428	if (r) {
1429		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1430		return r;
1431	}
1432
1433	return 0;
1434}
1435
1436int r300_resume(struct radeon_device *rdev)
1437{
1438	int r;
1439
1440	/* Make sur GART are not working */
1441	if (rdev->flags & RADEON_IS_PCIE)
1442		rv370_pcie_gart_disable(rdev);
1443	if (rdev->flags & RADEON_IS_PCI)
1444		r100_pci_gart_disable(rdev);
1445	/* Resume clock before doing reset */
1446	r300_clock_startup(rdev);
1447	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1448	if (radeon_asic_reset(rdev)) {
1449		dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1450			RREG32(R_000E40_RBBM_STATUS),
1451			RREG32(R_0007C0_CP_STAT));
1452	}
1453	/* post */
1454	radeon_combios_asic_init(rdev->ddev);
1455	/* Resume clock after posting */
1456	r300_clock_startup(rdev);
1457	/* Initialize surface registers */
1458	radeon_surface_init(rdev);
1459
1460	rdev->accel_working = true;
1461	r = r300_startup(rdev);
1462	if (r) {
1463		rdev->accel_working = false;
1464	}
1465	return r;
1466}
1467
1468int r300_suspend(struct radeon_device *rdev)
1469{
1470	radeon_pm_suspend(rdev);
1471	r100_cp_disable(rdev);
1472	radeon_wb_disable(rdev);
1473	r100_irq_disable(rdev);
1474	if (rdev->flags & RADEON_IS_PCIE)
1475		rv370_pcie_gart_disable(rdev);
1476	if (rdev->flags & RADEON_IS_PCI)
1477		r100_pci_gart_disable(rdev);
1478	return 0;
1479}
1480
1481void r300_fini(struct radeon_device *rdev)
1482{
1483	radeon_pm_fini(rdev);
1484	r100_cp_fini(rdev);
1485	radeon_wb_fini(rdev);
1486	radeon_ib_pool_fini(rdev);
1487	radeon_gem_fini(rdev);
1488	if (rdev->flags & RADEON_IS_PCIE)
1489		rv370_pcie_gart_fini(rdev);
1490	if (rdev->flags & RADEON_IS_PCI)
1491		r100_pci_gart_fini(rdev);
1492	radeon_agp_fini(rdev);
1493	radeon_irq_kms_fini(rdev);
1494	radeon_fence_driver_fini(rdev);
1495	radeon_bo_fini(rdev);
1496	radeon_atombios_fini(rdev);
1497	kfree(rdev->bios);
1498	rdev->bios = NULL;
1499}
1500
1501int r300_init(struct radeon_device *rdev)
1502{
1503	int r;
1504
1505	/* Disable VGA */
1506	r100_vga_render_disable(rdev);
1507	/* Initialize scratch registers */
1508	radeon_scratch_init(rdev);
1509	/* Initialize surface registers */
1510	radeon_surface_init(rdev);
1511	/* TODO: disable VGA need to use VGA request */
1512	/* restore some register to sane defaults */
1513	r100_restore_sanity(rdev);
1514	/* BIOS*/
1515	if (!radeon_get_bios(rdev)) {
1516		if (ASIC_IS_AVIVO(rdev))
1517			return -EINVAL;
1518	}
1519	if (rdev->is_atom_bios) {
1520		dev_err(rdev->dev, "Expecting combios for RS400/RS480 GPU\n");
1521		return -EINVAL;
1522	} else {
1523		r = radeon_combios_init(rdev);
1524		if (r)
1525			return r;
1526	}
1527	/* Reset gpu before posting otherwise ATOM will enter infinite loop */
1528	if (radeon_asic_reset(rdev)) {
1529		dev_warn(rdev->dev,
1530			"GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
1531			RREG32(R_000E40_RBBM_STATUS),
1532			RREG32(R_0007C0_CP_STAT));
1533	}
1534	/* check if cards are posted or not */
1535	if (radeon_boot_test_post_card(rdev) == false)
1536		return -EINVAL;
1537	/* Set asic errata */
1538	r300_errata(rdev);
1539	/* Initialize clocks */
1540	radeon_get_clock_info(rdev->ddev);
1541	/* initialize AGP */
1542	if (rdev->flags & RADEON_IS_AGP) {
1543		r = radeon_agp_init(rdev);
1544		if (r) {
1545			radeon_agp_disable(rdev);
1546		}
1547	}
1548	/* initialize memory controller */
1549	r300_mc_init(rdev);
1550	/* Fence driver */
1551	radeon_fence_driver_init(rdev);
1552	/* Memory manager */
1553	r = radeon_bo_init(rdev);
1554	if (r)
1555		return r;
1556	if (rdev->flags & RADEON_IS_PCIE) {
1557		r = rv370_pcie_gart_init(rdev);
1558		if (r)
1559			return r;
1560	}
1561	if (rdev->flags & RADEON_IS_PCI) {
1562		r = r100_pci_gart_init(rdev);
1563		if (r)
1564			return r;
1565	}
1566	r300_set_reg_safe(rdev);
1567
1568	/* Initialize power management */
1569	radeon_pm_init(rdev);
1570
1571	rdev->accel_working = true;
1572	r = r300_startup(rdev);
1573	if (r) {
1574		/* Something went wrong with the accel init, so stop accel */
1575		dev_err(rdev->dev, "Disabling GPU acceleration\n");
1576		r100_cp_fini(rdev);
1577		radeon_wb_fini(rdev);
1578		radeon_ib_pool_fini(rdev);
1579		radeon_irq_kms_fini(rdev);
1580		if (rdev->flags & RADEON_IS_PCIE)
1581			rv370_pcie_gart_fini(rdev);
1582		if (rdev->flags & RADEON_IS_PCI)
1583			r100_pci_gart_fini(rdev);
1584		radeon_agp_fini(rdev);
1585		rdev->accel_working = false;
1586	}
1587	return 0;
1588}
1589