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drm/radeon/kms: 6xx/7xx big endian fixes
[deliverable/linux.git] / drivers / gpu / drm / radeon / rv770.c
CommitLineData
771fe6b9
JG		 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 */
3ce0a23d
JG		 28#include <linux/firmware.h>
29#include <linux/platform_device.h>
5a0e3ad6 30#include <linux/slab.h>
771fe6b9 31#include "drmP.h"
771fe6b9 32#include "radeon.h"
e6990375 33#include "radeon_asic.h"
4153e584 34#include "radeon_drm.h"
3ce0a23d 35#include "rv770d.h"
3ce0a23d 36#include "atom.h"
d39c3b89 37#include "avivod.h"
771fe6b9 38
3ce0a23d
JG		 39#define R700_PFP_UCODE_SIZE 848
40#define R700_PM4_UCODE_SIZE 1360
771fe6b9 41
3ce0a23d
JG		 42static void rv770_gpu_init(struct radeon_device *rdev);
43void rv770_fini(struct radeon_device *rdev);
9e46a48d 44static void rv770_pcie_gen2_enable(struct radeon_device *rdev);
771fe6b9 45
6f34be50
AD		 46u32 rv770_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base)
47{
48 struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id];
49 u32 tmp = RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset);
50
51 /* Lock the graphics update lock */
52 tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
53 WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
54
55 /* update the scanout addresses */
56 if (radeon_crtc->crtc_id) {
57 WREG32(D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
58 WREG32(D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
59 } else {
60 WREG32(D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
61 WREG32(D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH, upper_32_bits(crtc_base));
62 }
63 WREG32(D1GRPH_SECONDARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
64 (u32)crtc_base);
65 WREG32(D1GRPH_PRIMARY_SURFACE_ADDRESS + radeon_crtc->crtc_offset,
66 (u32)crtc_base);
67
68 /* Wait for update_pending to go high. */
69 while (!(RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING));
70 DRM_DEBUG("Update pending now high. Unlocking vupdate_lock.\n");
71
72 /* Unlock the lock, so double-buffering can take place inside vblank */
73 tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK;
74 WREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset, tmp);
75
76 /* Return current update_pending status: */
77 return RREG32(AVIVO_D1GRPH_UPDATE + radeon_crtc->crtc_offset) & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING;
78}
79
21a8122a 80/* get temperature in millidegrees */
20d391d7 81int rv770_get_temp(struct radeon_device *rdev)
21a8122a
AD		 82{
83 u32 temp = (RREG32(CG_MULT_THERMAL_STATUS) & ASIC_T_MASK) >>
84 ASIC_T_SHIFT;
20d391d7 85 int actual_temp;
21a8122a 86
20d391d7
AD		 87 if (temp & 0x400)
88 actual_temp = -256;
89 else if (temp & 0x200)
90 actual_temp = 255;
91 else if (temp & 0x100) {
92 actual_temp = temp & 0x1ff;
93 actual_temp |= ~0x1ff;
94 } else
95 actual_temp = temp & 0xff;
21a8122a 96
20d391d7 97 return (actual_temp * 1000) / 2;
21a8122a
AD		 98}
99
49e02b73
AD		 100void rv770_pm_misc(struct radeon_device *rdev)
101{
a081a9d6
RM		 102 int req_ps_idx = rdev->pm.requested_power_state_index;
103 int req_cm_idx = rdev->pm.requested_clock_mode_index;
104 struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx];
105 struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage;
4d60173f
AD		 106
107 if ((voltage->type == VOLTAGE_SW) && voltage->voltage) {
108 if (voltage->voltage != rdev->pm.current_vddc) {
109 radeon_atom_set_voltage(rdev, voltage->voltage);
110 rdev->pm.current_vddc = voltage->voltage;
0fcbe947 111 DRM_DEBUG("Setting: v: %d\n", voltage->voltage);
4d60173f
AD		 112 }
113 }
49e02b73 114}
771fe6b9
JG		 115
116/*
3ce0a23d 117 * GART
771fe6b9 118 */
3ce0a23d 119int rv770_pcie_gart_enable(struct radeon_device *rdev)
771fe6b9 120{
3ce0a23d
JG		 121 u32 tmp;
122 int r, i;
771fe6b9 123
4aac0473
JG		 124 if (rdev->gart.table.vram.robj == NULL) {
125 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
126 return -EINVAL;
3ce0a23d 127 }
4aac0473
JG		 128 r = radeon_gart_table_vram_pin(rdev);
129 if (r)
3ce0a23d 130 return r;
82568565 131 radeon_gart_restore(rdev);
3ce0a23d
JG		 132 /* Setup L2 cache */
133 WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
134 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
135 EFFECTIVE_L2_QUEUE_SIZE(7));
136 WREG32(VM_L2_CNTL2, 0);
137 WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
138 /* Setup TLB control */
139 tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
140 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
141 SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU |
142 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
143 WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
144 WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
145 WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
146 WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
147 WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
148 WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
149 WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
150 WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
1a029b76 151 WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
3ce0a23d
JG		 152 WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
153 WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
154 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
155 WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
156 (u32)(rdev->dummy_page.addr >> 12));
157 for (i = 1; i < 7; i++)
158 WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
771fe6b9 159
3ce0a23d
JG		 160 r600_pcie_gart_tlb_flush(rdev);
161 rdev->gart.ready = true;
771fe6b9
JG		 162 return 0;
163}
164
3ce0a23d 165void rv770_pcie_gart_disable(struct radeon_device *rdev)
771fe6b9 166{
3ce0a23d 167 u32 tmp;
4c788679 168 int i, r;
3ce0a23d 169
3ce0a23d
JG		 170 /* Disable all tables */
171 for (i = 0; i < 7; i++)
172 WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
173
174 /* Setup L2 cache */
175 WREG32(VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING |
176 EFFECTIVE_L2_QUEUE_SIZE(7));
177 WREG32(VM_L2_CNTL2, 0);
178 WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
179 /* Setup TLB control */
180 tmp = EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
181 WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
182 WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
183 WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
184 WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
185 WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
186 WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
187 WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
4aac0473 188 if (rdev->gart.table.vram.robj) {
4c788679
JG		 189 r = radeon_bo_reserve(rdev->gart.table.vram.robj, false);
190 if (likely(r == 0)) {
191 radeon_bo_kunmap(rdev->gart.table.vram.robj);
192 radeon_bo_unpin(rdev->gart.table.vram.robj);
193 radeon_bo_unreserve(rdev->gart.table.vram.robj);
194 }
4aac0473
JG		 195 }
196}
197
198void rv770_pcie_gart_fini(struct radeon_device *rdev)
199{
f9274562 200 radeon_gart_fini(rdev);
4aac0473
JG		 201 rv770_pcie_gart_disable(rdev);
202 radeon_gart_table_vram_free(rdev);
771fe6b9
JG		 203}
204
205
1a029b76
JG		 206void rv770_agp_enable(struct radeon_device *rdev)
207{
208 u32 tmp;
209 int i;
210
211 /* Setup L2 cache */
212 WREG32(VM_L2_CNTL, ENABLE_L2_CACHE | ENABLE_L2_FRAGMENT_PROCESSING |
213 ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
214 EFFECTIVE_L2_QUEUE_SIZE(7));
215 WREG32(VM_L2_CNTL2, 0);
216 WREG32(VM_L2_CNTL3, BANK_SELECT(0) | CACHE_UPDATE_MODE(2));
217 /* Setup TLB control */
218 tmp = ENABLE_L1_TLB | ENABLE_L1_FRAGMENT_PROCESSING |
219 SYSTEM_ACCESS_MODE_NOT_IN_SYS |
220 SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU |
221 EFFECTIVE_L1_TLB_SIZE(5) | EFFECTIVE_L1_QUEUE_SIZE(5);
222 WREG32(MC_VM_MD_L1_TLB0_CNTL, tmp);
223 WREG32(MC_VM_MD_L1_TLB1_CNTL, tmp);
224 WREG32(MC_VM_MD_L1_TLB2_CNTL, tmp);
225 WREG32(MC_VM_MB_L1_TLB0_CNTL, tmp);
226 WREG32(MC_VM_MB_L1_TLB1_CNTL, tmp);
227 WREG32(MC_VM_MB_L1_TLB2_CNTL, tmp);
228 WREG32(MC_VM_MB_L1_TLB3_CNTL, tmp);
229 for (i = 0; i < 7; i++)
230 WREG32(VM_CONTEXT0_CNTL + (i * 4), 0);
231}
232
a3c1945a 233static void rv770_mc_program(struct radeon_device *rdev)
771fe6b9 234{
a3c1945a 235 struct rv515_mc_save save;
3ce0a23d
JG		 236 u32 tmp;
237 int i, j;
238
239 /* Initialize HDP */
240 for (i = 0, j = 0; i < 32; i++, j += 0x18) {
241 WREG32((0x2c14 + j), 0x00000000);
242 WREG32((0x2c18 + j), 0x00000000);
243 WREG32((0x2c1c + j), 0x00000000);
244 WREG32((0x2c20 + j), 0x00000000);
245 WREG32((0x2c24 + j), 0x00000000);
246 }
812d0469
AD		 247 /* r7xx hw bug. Read from HDP_DEBUG1 rather
248 * than writing to HDP_REG_COHERENCY_FLUSH_CNTL
249 */
250 tmp = RREG32(HDP_DEBUG1);
3ce0a23d 251
a3c1945a 252 rv515_mc_stop(rdev, &save);
3ce0a23d 253 if (r600_mc_wait_for_idle(rdev)) {
a3c1945a 254 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
3ce0a23d 255 }
3ce0a23d
JG		 256 /* Lockout access through VGA aperture*/
257 WREG32(VGA_HDP_CONTROL, VGA_MEMORY_DISABLE);
3ce0a23d 258 /* Update configuration */
1a029b76
JG		 259 if (rdev->flags & RADEON_IS_AGP) {
260 if (rdev->mc.vram_start < rdev->mc.gtt_start) {
261 /* VRAM before AGP */
262 WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
263 rdev->mc.vram_start >> 12);
264 WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
265 rdev->mc.gtt_end >> 12);
266 } else {
267 /* VRAM after AGP */
268 WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
269 rdev->mc.gtt_start >> 12);
270 WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
271 rdev->mc.vram_end >> 12);
272 }
273 } else {
274 WREG32(MC_VM_SYSTEM_APERTURE_LOW_ADDR,
275 rdev->mc.vram_start >> 12);
276 WREG32(MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
277 rdev->mc.vram_end >> 12);
278 }
3ce0a23d 279 WREG32(MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 0);
1a029b76 280 tmp = ((rdev->mc.vram_end >> 24) & 0xFFFF) << 16;
3ce0a23d
JG		 281 tmp |= ((rdev->mc.vram_start >> 24) & 0xFFFF);
282 WREG32(MC_VM_FB_LOCATION, tmp);
283 WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
284 WREG32(HDP_NONSURFACE_INFO, (2 << 7));
46fcd2b3 285 WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
3ce0a23d 286 if (rdev->flags & RADEON_IS_AGP) {
1a029b76 287 WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 16);
3ce0a23d
JG		 288 WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 16);
289 WREG32(MC_VM_AGP_BASE, rdev->mc.agp_base >> 22);
290 } else {
291 WREG32(MC_VM_AGP_BASE, 0);
292 WREG32(MC_VM_AGP_TOP, 0x0FFFFFFF);
293 WREG32(MC_VM_AGP_BOT, 0x0FFFFFFF);
294 }
3ce0a23d 295 if (r600_mc_wait_for_idle(rdev)) {
a3c1945a 296 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
3ce0a23d 297 }
a3c1945a 298 rv515_mc_resume(rdev, &save);
698443d9
DA		 299 /* we need to own VRAM, so turn off the VGA renderer here
300 * to stop it overwriting our objects */
d39c3b89 301 rv515_vga_render_disable(rdev);
771fe6b9
JG		 302}
303
3ce0a23d
JG		 304
305/*
306 * CP.
307 */
308void r700_cp_stop(struct radeon_device *rdev)
771fe6b9 309{
c919b371 310 rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
3ce0a23d 311 WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT));
724c80e1 312 WREG32(SCRATCH_UMSK, 0);
771fe6b9
JG		 313}
314
3ce0a23d 315static int rv770_cp_load_microcode(struct radeon_device *rdev)
771fe6b9 316{
3ce0a23d
JG		 317 const __be32 *fw_data;
318 int i;
319
320 if (!rdev->me_fw || !rdev->pfp_fw)
321 return -EINVAL;
322
323 r700_cp_stop(rdev);
4eace7fd
CC		 324 WREG32(CP_RB_CNTL,
325#ifdef __BIG_ENDIAN
326 BUF_SWAP_32BIT |
327#endif
328 RB_NO_UPDATE | RB_BLKSZ(15) | RB_BUFSZ(3));
3ce0a23d
JG		 329
330 /* Reset cp */
331 WREG32(GRBM_SOFT_RESET, SOFT_RESET_CP);
332 RREG32(GRBM_SOFT_RESET);
333 mdelay(15);
334 WREG32(GRBM_SOFT_RESET, 0);
335
336 fw_data = (const __be32 *)rdev->pfp_fw->data;
337 WREG32(CP_PFP_UCODE_ADDR, 0);
338 for (i = 0; i < R700_PFP_UCODE_SIZE; i++)
339 WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
340 WREG32(CP_PFP_UCODE_ADDR, 0);
341
342 fw_data = (const __be32 *)rdev->me_fw->data;
343 WREG32(CP_ME_RAM_WADDR, 0);
344 for (i = 0; i < R700_PM4_UCODE_SIZE; i++)
345 WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));
346
347 WREG32(CP_PFP_UCODE_ADDR, 0);
348 WREG32(CP_ME_RAM_WADDR, 0);
349 WREG32(CP_ME_RAM_RADDR, 0);
350 return 0;
771fe6b9
JG		 351}
352
fe251e2f
AD		 353void r700_cp_fini(struct radeon_device *rdev)
354{
355 r700_cp_stop(rdev);
356 radeon_ring_fini(rdev);
357}
771fe6b9
JG		 358
359/*
3ce0a23d 360 * Core functions
771fe6b9 361 */
d03f5d59
AD		 362static u32 r700_get_tile_pipe_to_backend_map(struct radeon_device *rdev,
363 u32 num_tile_pipes,
364 u32 num_backends,
365 u32 backend_disable_mask)
771fe6b9 366{
3ce0a23d
JG		 367 u32 backend_map = 0;
368 u32 enabled_backends_mask;
369 u32 enabled_backends_count;
370 u32 cur_pipe;
371 u32 swizzle_pipe[R7XX_MAX_PIPES];
372 u32 cur_backend;
373 u32 i;
d03f5d59 374 bool force_no_swizzle;
3ce0a23d
JG		 375
376 if (num_tile_pipes > R7XX_MAX_PIPES)
377 num_tile_pipes = R7XX_MAX_PIPES;
378 if (num_tile_pipes < 1)
379 num_tile_pipes = 1;
380 if (num_backends > R7XX_MAX_BACKENDS)
381 num_backends = R7XX_MAX_BACKENDS;
382 if (num_backends < 1)
383 num_backends = 1;
384
385 enabled_backends_mask = 0;
386 enabled_backends_count = 0;
387 for (i = 0; i < R7XX_MAX_BACKENDS; ++i) {
388 if (((backend_disable_mask >> i) & 1) == 0) {
389 enabled_backends_mask |= (1 << i);
390 ++enabled_backends_count;
391 }
392 if (enabled_backends_count == num_backends)
393 break;
394 }
395
396 if (enabled_backends_count == 0) {
397 enabled_backends_mask = 1;
398 enabled_backends_count = 1;
399 }
400
401 if (enabled_backends_count != num_backends)
402 num_backends = enabled_backends_count;
403
d03f5d59
AD		 404 switch (rdev->family) {
405 case CHIP_RV770:
406 case CHIP_RV730:
407 force_no_swizzle = false;
408 break;
409 case CHIP_RV710:
410 case CHIP_RV740:
411 default:
412 force_no_swizzle = true;
413 break;
414 }
415
3ce0a23d
JG		 416 memset((uint8_t *)&swizzle_pipe[0], 0, sizeof(u32) * R7XX_MAX_PIPES);
417 switch (num_tile_pipes) {
418 case 1:
419 swizzle_pipe[0] = 0;
420 break;
421 case 2:
422 swizzle_pipe[0] = 0;
423 swizzle_pipe[1] = 1;
424 break;
425 case 3:
d03f5d59
AD		 426 if (force_no_swizzle) {
427 swizzle_pipe[0] = 0;
428 swizzle_pipe[1] = 1;
429 swizzle_pipe[2] = 2;
430 } else {
431 swizzle_pipe[0] = 0;
432 swizzle_pipe[1] = 2;
433 swizzle_pipe[2] = 1;
434 }
3ce0a23d
JG		 435 break;
436 case 4:
d03f5d59
AD		 437 if (force_no_swizzle) {
438 swizzle_pipe[0] = 0;
439 swizzle_pipe[1] = 1;
440 swizzle_pipe[2] = 2;
441 swizzle_pipe[3] = 3;
442 } else {
443 swizzle_pipe[0] = 0;
444 swizzle_pipe[1] = 2;
445 swizzle_pipe[2] = 3;
446 swizzle_pipe[3] = 1;
447 }
3ce0a23d
JG		 448 break;
449 case 5:
d03f5d59
AD		 450 if (force_no_swizzle) {
451 swizzle_pipe[0] = 0;
452 swizzle_pipe[1] = 1;
453 swizzle_pipe[2] = 2;
454 swizzle_pipe[3] = 3;
455 swizzle_pipe[4] = 4;
456 } else {
457 swizzle_pipe[0] = 0;
458 swizzle_pipe[1] = 2;
459 swizzle_pipe[2] = 4;
460 swizzle_pipe[3] = 1;
461 swizzle_pipe[4] = 3;
462 }
3ce0a23d
JG		 463 break;
464 case 6:
d03f5d59
AD		 465 if (force_no_swizzle) {
466 swizzle_pipe[0] = 0;
467 swizzle_pipe[1] = 1;
468 swizzle_pipe[2] = 2;
469 swizzle_pipe[3] = 3;
470 swizzle_pipe[4] = 4;
471 swizzle_pipe[5] = 5;
472 } else {
473 swizzle_pipe[0] = 0;
474 swizzle_pipe[1] = 2;
475 swizzle_pipe[2] = 4;
476 swizzle_pipe[3] = 5;
477 swizzle_pipe[4] = 3;
478 swizzle_pipe[5] = 1;
479 }
3ce0a23d
JG		 480 break;
481 case 7:
d03f5d59
AD		 482 if (force_no_swizzle) {
483 swizzle_pipe[0] = 0;
484 swizzle_pipe[1] = 1;
485 swizzle_pipe[2] = 2;
486 swizzle_pipe[3] = 3;
487 swizzle_pipe[4] = 4;
488 swizzle_pipe[5] = 5;
489 swizzle_pipe[6] = 6;
490 } else {
491 swizzle_pipe[0] = 0;
492 swizzle_pipe[1] = 2;
493 swizzle_pipe[2] = 4;
494 swizzle_pipe[3] = 6;
495 swizzle_pipe[4] = 3;
496 swizzle_pipe[5] = 1;
497 swizzle_pipe[6] = 5;
498 }
3ce0a23d
JG		 499 break;
500 case 8:
d03f5d59
AD		 501 if (force_no_swizzle) {
502 swizzle_pipe[0] = 0;
503 swizzle_pipe[1] = 1;
504 swizzle_pipe[2] = 2;
505 swizzle_pipe[3] = 3;
506 swizzle_pipe[4] = 4;
507 swizzle_pipe[5] = 5;
508 swizzle_pipe[6] = 6;
509 swizzle_pipe[7] = 7;
510 } else {
511 swizzle_pipe[0] = 0;
512 swizzle_pipe[1] = 2;
513 swizzle_pipe[2] = 4;
514 swizzle_pipe[3] = 6;
515 swizzle_pipe[4] = 3;
516 swizzle_pipe[5] = 1;
517 swizzle_pipe[6] = 7;
518 swizzle_pipe[7] = 5;
519 }
3ce0a23d
JG		 520 break;
521 }
522
523 cur_backend = 0;
524 for (cur_pipe = 0; cur_pipe < num_tile_pipes; ++cur_pipe) {
525 while (((1 << cur_backend) & enabled_backends_mask) == 0)
526 cur_backend = (cur_backend + 1) % R7XX_MAX_BACKENDS;
527
528 backend_map |= (u32)(((cur_backend & 3) << (swizzle_pipe[cur_pipe] * 2)));
529
530 cur_backend = (cur_backend + 1) % R7XX_MAX_BACKENDS;
531 }
532
533 return backend_map;
771fe6b9
JG		 534}
535
9535ab73
AD		 536static void rv770_program_channel_remap(struct radeon_device *rdev)
537{
538 u32 tcp_chan_steer, mc_shared_chremap, tmp;
539 bool force_no_swizzle;
540
541 switch (rdev->family) {
542 case CHIP_RV770:
543 case CHIP_RV730:
544 force_no_swizzle = false;
545 break;
546 case CHIP_RV710:
547 case CHIP_RV740:
548 default:
549 force_no_swizzle = true;
550 break;
551 }
552
553 tmp = RREG32(MC_SHARED_CHMAP);
554 switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
555 case 0:
556 case 1:
557 default:
558 /* default mapping */
559 mc_shared_chremap = 0x00fac688;
560 break;
561 case 2:
562 case 3:
563 if (force_no_swizzle)
564 mc_shared_chremap = 0x00fac688;
565 else
566 mc_shared_chremap = 0x00bbc298;
567 break;
568 }
569
570 if (rdev->family == CHIP_RV740)
571 tcp_chan_steer = 0x00ef2a60;
572 else
573 tcp_chan_steer = 0x00fac688;
574
575 WREG32(TCP_CHAN_STEER, tcp_chan_steer);
576 WREG32(MC_SHARED_CHREMAP, mc_shared_chremap);
577}
578
3ce0a23d 579static void rv770_gpu_init(struct radeon_device *rdev)
771fe6b9 580{
3ce0a23d 581 int i, j, num_qd_pipes;
d03f5d59 582 u32 ta_aux_cntl;
3ce0a23d
JG		 583 u32 sx_debug_1;
584 u32 smx_dc_ctl0;
d03f5d59 585 u32 db_debug3;
3ce0a23d
JG		 586 u32 num_gs_verts_per_thread;
587 u32 vgt_gs_per_es;
588 u32 gs_prim_buffer_depth = 0;
589 u32 sq_ms_fifo_sizes;
590 u32 sq_config;
591 u32 sq_thread_resource_mgmt;
592 u32 hdp_host_path_cntl;
593 u32 sq_dyn_gpr_size_simd_ab_0;
594 u32 backend_map;
595 u32 gb_tiling_config = 0;
596 u32 cc_rb_backend_disable = 0;
597 u32 cc_gc_shader_pipe_config = 0;
598 u32 mc_arb_ramcfg;
599 u32 db_debug4;
771fe6b9 600
3ce0a23d
JG		 601 /* setup chip specs */
602 switch (rdev->family) {
603 case CHIP_RV770:
604 rdev->config.rv770.max_pipes = 4;
605 rdev->config.rv770.max_tile_pipes = 8;
606 rdev->config.rv770.max_simds = 10;
607 rdev->config.rv770.max_backends = 4;
608 rdev->config.rv770.max_gprs = 256;
609 rdev->config.rv770.max_threads = 248;
610 rdev->config.rv770.max_stack_entries = 512;
611 rdev->config.rv770.max_hw_contexts = 8;
612 rdev->config.rv770.max_gs_threads = 16 * 2;
613 rdev->config.rv770.sx_max_export_size = 128;
614 rdev->config.rv770.sx_max_export_pos_size = 16;
615 rdev->config.rv770.sx_max_export_smx_size = 112;
616 rdev->config.rv770.sq_num_cf_insts = 2;
617
618 rdev->config.rv770.sx_num_of_sets = 7;
619 rdev->config.rv770.sc_prim_fifo_size = 0xF9;
620 rdev->config.rv770.sc_hiz_tile_fifo_size = 0x30;
621 rdev->config.rv770.sc_earlyz_tile_fifo_fize = 0x130;
622 break;
623 case CHIP_RV730:
624 rdev->config.rv770.max_pipes = 2;
625 rdev->config.rv770.max_tile_pipes = 4;
626 rdev->config.rv770.max_simds = 8;
627 rdev->config.rv770.max_backends = 2;
628 rdev->config.rv770.max_gprs = 128;
629 rdev->config.rv770.max_threads = 248;
630 rdev->config.rv770.max_stack_entries = 256;
631 rdev->config.rv770.max_hw_contexts = 8;
632 rdev->config.rv770.max_gs_threads = 16 * 2;
633 rdev->config.rv770.sx_max_export_size = 256;
634 rdev->config.rv770.sx_max_export_pos_size = 32;
635 rdev->config.rv770.sx_max_export_smx_size = 224;
636 rdev->config.rv770.sq_num_cf_insts = 2;
637
638 rdev->config.rv770.sx_num_of_sets = 7;
639 rdev->config.rv770.sc_prim_fifo_size = 0xf9;
640 rdev->config.rv770.sc_hiz_tile_fifo_size = 0x30;
641 rdev->config.rv770.sc_earlyz_tile_fifo_fize = 0x130;
642 if (rdev->config.rv770.sx_max_export_pos_size > 16) {
643 rdev->config.rv770.sx_max_export_pos_size -= 16;
644 rdev->config.rv770.sx_max_export_smx_size += 16;
645 }
646 break;
647 case CHIP_RV710:
648 rdev->config.rv770.max_pipes = 2;
649 rdev->config.rv770.max_tile_pipes = 2;
650 rdev->config.rv770.max_simds = 2;
651 rdev->config.rv770.max_backends = 1;
652 rdev->config.rv770.max_gprs = 256;
653 rdev->config.rv770.max_threads = 192;
654 rdev->config.rv770.max_stack_entries = 256;
655 rdev->config.rv770.max_hw_contexts = 4;
656 rdev->config.rv770.max_gs_threads = 8 * 2;
657 rdev->config.rv770.sx_max_export_size = 128;
658 rdev->config.rv770.sx_max_export_pos_size = 16;
659 rdev->config.rv770.sx_max_export_smx_size = 112;
660 rdev->config.rv770.sq_num_cf_insts = 1;
661
662 rdev->config.rv770.sx_num_of_sets = 7;
663 rdev->config.rv770.sc_prim_fifo_size = 0x40;
664 rdev->config.rv770.sc_hiz_tile_fifo_size = 0x30;
665 rdev->config.rv770.sc_earlyz_tile_fifo_fize = 0x130;
666 break;
667 case CHIP_RV740:
668 rdev->config.rv770.max_pipes = 4;
669 rdev->config.rv770.max_tile_pipes = 4;
670 rdev->config.rv770.max_simds = 8;
671 rdev->config.rv770.max_backends = 4;
672 rdev->config.rv770.max_gprs = 256;
673 rdev->config.rv770.max_threads = 248;
674 rdev->config.rv770.max_stack_entries = 512;
675 rdev->config.rv770.max_hw_contexts = 8;
676 rdev->config.rv770.max_gs_threads = 16 * 2;
677 rdev->config.rv770.sx_max_export_size = 256;
678 rdev->config.rv770.sx_max_export_pos_size = 32;
679 rdev->config.rv770.sx_max_export_smx_size = 224;
680 rdev->config.rv770.sq_num_cf_insts = 2;
681
682 rdev->config.rv770.sx_num_of_sets = 7;
683 rdev->config.rv770.sc_prim_fifo_size = 0x100;
684 rdev->config.rv770.sc_hiz_tile_fifo_size = 0x30;
685 rdev->config.rv770.sc_earlyz_tile_fifo_fize = 0x130;
686
687 if (rdev->config.rv770.sx_max_export_pos_size > 16) {
688 rdev->config.rv770.sx_max_export_pos_size -= 16;
689 rdev->config.rv770.sx_max_export_smx_size += 16;
690 }
691 break;
692 default:
693 break;
694 }
695
696 /* Initialize HDP */
697 j = 0;
698 for (i = 0; i < 32; i++) {
699 WREG32((0x2c14 + j), 0x00000000);
700 WREG32((0x2c18 + j), 0x00000000);
701 WREG32((0x2c1c + j), 0x00000000);
702 WREG32((0x2c20 + j), 0x00000000);
703 WREG32((0x2c24 + j), 0x00000000);
704 j += 0x18;
705 }
706
707 WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
708
709 /* setup tiling, simd, pipe config */
710 mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);
711
712 switch (rdev->config.rv770.max_tile_pipes) {
713 case 1:
d03f5d59 714 default:
3ce0a23d
JG		 715 gb_tiling_config |= PIPE_TILING(0);
716 break;
717 case 2:
718 gb_tiling_config |= PIPE_TILING(1);
719 break;
720 case 4:
721 gb_tiling_config |= PIPE_TILING(2);
722 break;
723 case 8:
724 gb_tiling_config |= PIPE_TILING(3);
3ce0a23d
JG		 725 break;
726 }
d03f5d59 727 rdev->config.rv770.tiling_npipes = rdev->config.rv770.max_tile_pipes;
3ce0a23d
JG		 728
729 if (rdev->family == CHIP_RV770)
730 gb_tiling_config |= BANK_TILING(1);
731 else
e29649db 732 gb_tiling_config |= BANK_TILING((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT);
961fb597 733 rdev->config.rv770.tiling_nbanks = 4 << ((gb_tiling_config >> 4) & 0x3);
881fe6c1
AD		 734 gb_tiling_config |= GROUP_SIZE((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT);
735 if ((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT)
736 rdev->config.rv770.tiling_group_size = 512;
737 else
738 rdev->config.rv770.tiling_group_size = 256;
e29649db 739 if (((mc_arb_ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT) > 3) {
3ce0a23d
JG		 740 gb_tiling_config |= ROW_TILING(3);
741 gb_tiling_config |= SAMPLE_SPLIT(3);
742 } else {
743 gb_tiling_config |=
744 ROW_TILING(((mc_arb_ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT));
745 gb_tiling_config |=
746 SAMPLE_SPLIT(((mc_arb_ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT));
747 }
748
749 gb_tiling_config |= BANK_SWAPS(1);
750
d03f5d59
AD		 751 cc_rb_backend_disable = RREG32(CC_RB_BACKEND_DISABLE) & 0x00ff0000;
752 cc_rb_backend_disable |=
753 BACKEND_DISABLE((R7XX_MAX_BACKENDS_MASK << rdev->config.rv770.max_backends) & R7XX_MAX_BACKENDS_MASK);
3ce0a23d 754
d03f5d59
AD		 755 cc_gc_shader_pipe_config = RREG32(CC_GC_SHADER_PIPE_CONFIG) & 0xffffff00;
756 cc_gc_shader_pipe_config |=
3ce0a23d
JG		 757 INACTIVE_QD_PIPES((R7XX_MAX_PIPES_MASK << rdev->config.rv770.max_pipes) & R7XX_MAX_PIPES_MASK);
758 cc_gc_shader_pipe_config |=
759 INACTIVE_SIMDS((R7XX_MAX_SIMDS_MASK << rdev->config.rv770.max_simds) & R7XX_MAX_SIMDS_MASK);
760
d03f5d59
AD		 761 if (rdev->family == CHIP_RV740)
762 backend_map = 0x28;
763 else
764 backend_map = r700_get_tile_pipe_to_backend_map(rdev,
765 rdev->config.rv770.max_tile_pipes,
766 (R7XX_MAX_BACKENDS -
767 r600_count_pipe_bits((cc_rb_backend_disable &
768 R7XX_MAX_BACKENDS_MASK) >> 16)),
769 (cc_rb_backend_disable >> 16));
d03f5d59 770
e7aeeba6
AD		 771 rdev->config.rv770.tile_config = gb_tiling_config;
772 gb_tiling_config |= BACKEND_MAP(backend_map);
3ce0a23d
JG		 773
774 WREG32(GB_TILING_CONFIG, gb_tiling_config);
775 WREG32(DCP_TILING_CONFIG, (gb_tiling_config & 0xffff));
776 WREG32(HDP_TILING_CONFIG, (gb_tiling_config & 0xffff));
777
9535ab73
AD		 778 rv770_program_channel_remap(rdev);
779
3ce0a23d
JG		 780 WREG32(CC_RB_BACKEND_DISABLE, cc_rb_backend_disable);
781 WREG32(CC_GC_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);
f867c60d 782 WREG32(GC_USER_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);
d03f5d59 783 WREG32(CC_SYS_RB_BACKEND_DISABLE, cc_rb_backend_disable);
3ce0a23d 784
3ce0a23d
JG		 785 WREG32(CGTS_SYS_TCC_DISABLE, 0);
786 WREG32(CGTS_TCC_DISABLE, 0);
f867c60d
AD		 787 WREG32(CGTS_USER_SYS_TCC_DISABLE, 0);
788 WREG32(CGTS_USER_TCC_DISABLE, 0);
3ce0a23d
JG		 789
790 num_qd_pipes =
d03f5d59 791 R7XX_MAX_PIPES - r600_count_pipe_bits((cc_gc_shader_pipe_config & INACTIVE_QD_PIPES_MASK) >> 8);
3ce0a23d
JG		 792 WREG32(VGT_OUT_DEALLOC_CNTL, (num_qd_pipes * 4) & DEALLOC_DIST_MASK);
793 WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, ((num_qd_pipes * 4) - 2) & VTX_REUSE_DEPTH_MASK);
794
795 /* set HW defaults for 3D engine */
796 WREG32(CP_QUEUE_THRESHOLDS, (ROQ_IB1_START(0x16) |
e29649db 797 ROQ_IB2_START(0x2b)));
3ce0a23d
JG		 798
799 WREG32(CP_MEQ_THRESHOLDS, STQ_SPLIT(0x30));
800
d03f5d59
AD		 801 ta_aux_cntl = RREG32(TA_CNTL_AUX);
802 WREG32(TA_CNTL_AUX, ta_aux_cntl | DISABLE_CUBE_ANISO);
3ce0a23d
JG		 803
804 sx_debug_1 = RREG32(SX_DEBUG_1);
805 sx_debug_1 |= ENABLE_NEW_SMX_ADDRESS;
806 WREG32(SX_DEBUG_1, sx_debug_1);
807
808 smx_dc_ctl0 = RREG32(SMX_DC_CTL0);
809 smx_dc_ctl0 &= ~CACHE_DEPTH(0x1ff);
810 smx_dc_ctl0 |= CACHE_DEPTH((rdev->config.rv770.sx_num_of_sets * 64) - 1);
811 WREG32(SMX_DC_CTL0, smx_dc_ctl0);
812
d03f5d59
AD		 813 if (rdev->family != CHIP_RV740)
814 WREG32(SMX_EVENT_CTL, (ES_FLUSH_CTL(4) |
815 GS_FLUSH_CTL(4) |
816 ACK_FLUSH_CTL(3) |
817 SYNC_FLUSH_CTL));
3ce0a23d 818
d03f5d59
AD		 819 db_debug3 = RREG32(DB_DEBUG3);
820 db_debug3 &= ~DB_CLK_OFF_DELAY(0x1f);
821 switch (rdev->family) {
822 case CHIP_RV770:
823 case CHIP_RV740:
824 db_debug3 |= DB_CLK_OFF_DELAY(0x1f);
825 break;
826 case CHIP_RV710:
827 case CHIP_RV730:
828 default:
829 db_debug3 |= DB_CLK_OFF_DELAY(2);
830 break;
831 }
832 WREG32(DB_DEBUG3, db_debug3);
833
834 if (rdev->family != CHIP_RV770) {
3ce0a23d
JG		 835 db_debug4 = RREG32(DB_DEBUG4);
836 db_debug4 |= DISABLE_TILE_COVERED_FOR_PS_ITER;
837 WREG32(DB_DEBUG4, db_debug4);
838 }
839
840 WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.rv770.sx_max_export_size / 4) - 1) |
e29649db
AD		 841 POSITION_BUFFER_SIZE((rdev->config.rv770.sx_max_export_pos_size / 4) - 1) |
842 SMX_BUFFER_SIZE((rdev->config.rv770.sx_max_export_smx_size / 4) - 1)));
3ce0a23d
JG		 843
844 WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.rv770.sc_prim_fifo_size) |
e29649db
AD		 845 SC_HIZ_TILE_FIFO_SIZE(rdev->config.rv770.sc_hiz_tile_fifo_size) |
846 SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.rv770.sc_earlyz_tile_fifo_fize)));
3ce0a23d
JG		 847
848 WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
849
850 WREG32(VGT_NUM_INSTANCES, 1);
851
852 WREG32(SPI_CONFIG_CNTL, GPR_WRITE_PRIORITY(0));
853
854 WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4));
855
856 WREG32(CP_PERFMON_CNTL, 0);
857
858 sq_ms_fifo_sizes = (CACHE_FIFO_SIZE(16 * rdev->config.rv770.sq_num_cf_insts) |
859 DONE_FIFO_HIWATER(0xe0) |
860 ALU_UPDATE_FIFO_HIWATER(0x8));
861 switch (rdev->family) {
862 case CHIP_RV770:
3ce0a23d
JG		 863 case CHIP_RV730:
864 case CHIP_RV710:
d03f5d59
AD		 865 sq_ms_fifo_sizes |= FETCH_FIFO_HIWATER(0x1);
866 break;
3ce0a23d
JG		 867 case CHIP_RV740:
868 default:
869 sq_ms_fifo_sizes |= FETCH_FIFO_HIWATER(0x4);
870 break;
871 }
872 WREG32(SQ_MS_FIFO_SIZES, sq_ms_fifo_sizes);
873
874 /* SQ_CONFIG, SQ_GPR_RESOURCE_MGMT, SQ_THREAD_RESOURCE_MGMT, SQ_STACK_RESOURCE_MGMT
875 * should be adjusted as needed by the 2D/3D drivers. This just sets default values
876 */
877 sq_config = RREG32(SQ_CONFIG);
878 sq_config &= ~(PS_PRIO(3) |
879 VS_PRIO(3) |
880 GS_PRIO(3) |
881 ES_PRIO(3));
882 sq_config |= (DX9_CONSTS |
883 VC_ENABLE |
884 EXPORT_SRC_C |
885 PS_PRIO(0) |
886 VS_PRIO(1) |
887 GS_PRIO(2) |
888 ES_PRIO(3));
889 if (rdev->family == CHIP_RV710)
890 /* no vertex cache */
891 sq_config &= ~VC_ENABLE;
892
893 WREG32(SQ_CONFIG, sq_config);
894
895 WREG32(SQ_GPR_RESOURCE_MGMT_1, (NUM_PS_GPRS((rdev->config.rv770.max_gprs * 24)/64) |
fe62e1a4
DA		 896 NUM_VS_GPRS((rdev->config.rv770.max_gprs * 24)/64) |
897 NUM_CLAUSE_TEMP_GPRS(((rdev->config.rv770.max_gprs * 24)/64)/2)));
3ce0a23d
JG		 898
899 WREG32(SQ_GPR_RESOURCE_MGMT_2, (NUM_GS_GPRS((rdev->config.rv770.max_gprs * 7)/64) |
fe62e1a4 900 NUM_ES_GPRS((rdev->config.rv770.max_gprs * 7)/64)));
3ce0a23d
JG		 901
902 sq_thread_resource_mgmt = (NUM_PS_THREADS((rdev->config.rv770.max_threads * 4)/8) |
903 NUM_VS_THREADS((rdev->config.rv770.max_threads * 2)/8) |
904 NUM_ES_THREADS((rdev->config.rv770.max_threads * 1)/8));
905 if (((rdev->config.rv770.max_threads * 1) / 8) > rdev->config.rv770.max_gs_threads)
906 sq_thread_resource_mgmt |= NUM_GS_THREADS(rdev->config.rv770.max_gs_threads);
907 else
908 sq_thread_resource_mgmt |= NUM_GS_THREADS((rdev->config.rv770.max_gs_threads * 1)/8);
909 WREG32(SQ_THREAD_RESOURCE_MGMT, sq_thread_resource_mgmt);
910
911 WREG32(SQ_STACK_RESOURCE_MGMT_1, (NUM_PS_STACK_ENTRIES((rdev->config.rv770.max_stack_entries * 1)/4) |
912 NUM_VS_STACK_ENTRIES((rdev->config.rv770.max_stack_entries * 1)/4)));
913
914 WREG32(SQ_STACK_RESOURCE_MGMT_2, (NUM_GS_STACK_ENTRIES((rdev->config.rv770.max_stack_entries * 1)/4) |
915 NUM_ES_STACK_ENTRIES((rdev->config.rv770.max_stack_entries * 1)/4)));
916
917 sq_dyn_gpr_size_simd_ab_0 = (SIMDA_RING0((rdev->config.rv770.max_gprs * 38)/64) |
918 SIMDA_RING1((rdev->config.rv770.max_gprs * 38)/64) |
919 SIMDB_RING0((rdev->config.rv770.max_gprs * 38)/64) |
920 SIMDB_RING1((rdev->config.rv770.max_gprs * 38)/64));
921
922 WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_0, sq_dyn_gpr_size_simd_ab_0);
923 WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_1, sq_dyn_gpr_size_simd_ab_0);
924 WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_2, sq_dyn_gpr_size_simd_ab_0);
925 WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_3, sq_dyn_gpr_size_simd_ab_0);
926 WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_4, sq_dyn_gpr_size_simd_ab_0);
927 WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_5, sq_dyn_gpr_size_simd_ab_0);
928 WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_6, sq_dyn_gpr_size_simd_ab_0);
929 WREG32(SQ_DYN_GPR_SIZE_SIMD_AB_7, sq_dyn_gpr_size_simd_ab_0);
930
931 WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
fe62e1a4 932 FORCE_EOV_MAX_REZ_CNT(255)));
3ce0a23d
JG		 933
934 if (rdev->family == CHIP_RV710)
935 WREG32(VGT_CACHE_INVALIDATION, (CACHE_INVALIDATION(TC_ONLY) |
fe62e1a4 936 AUTO_INVLD_EN(ES_AND_GS_AUTO)));
3ce0a23d
JG		 937 else
938 WREG32(VGT_CACHE_INVALIDATION, (CACHE_INVALIDATION(VC_AND_TC) |
fe62e1a4 939 AUTO_INVLD_EN(ES_AND_GS_AUTO)));
3ce0a23d
JG		 940
941 switch (rdev->family) {
942 case CHIP_RV770:
943 case CHIP_RV730:
944 case CHIP_RV740:
945 gs_prim_buffer_depth = 384;
946 break;
947 case CHIP_RV710:
948 gs_prim_buffer_depth = 128;
949 break;
950 default:
951 break;
952 }
953
954 num_gs_verts_per_thread = rdev->config.rv770.max_pipes * 16;
955 vgt_gs_per_es = gs_prim_buffer_depth + num_gs_verts_per_thread;
956 /* Max value for this is 256 */
957 if (vgt_gs_per_es > 256)
958 vgt_gs_per_es = 256;
959
960 WREG32(VGT_ES_PER_GS, 128);
961 WREG32(VGT_GS_PER_ES, vgt_gs_per_es);
962 WREG32(VGT_GS_PER_VS, 2);
963
964 /* more default values. 2D/3D driver should adjust as needed */
965 WREG32(VGT_GS_VERTEX_REUSE, 16);
966 WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
967 WREG32(VGT_STRMOUT_EN, 0);
968 WREG32(SX_MISC, 0);
969 WREG32(PA_SC_MODE_CNTL, 0);
970 WREG32(PA_SC_EDGERULE, 0xaaaaaaaa);
971 WREG32(PA_SC_AA_CONFIG, 0);
972 WREG32(PA_SC_CLIPRECT_RULE, 0xffff);
973 WREG32(PA_SC_LINE_STIPPLE, 0);
974 WREG32(SPI_INPUT_Z, 0);
975 WREG32(SPI_PS_IN_CONTROL_0, NUM_INTERP(2));
976 WREG32(CB_COLOR7_FRAG, 0);
977
978 /* clear render buffer base addresses */
979 WREG32(CB_COLOR0_BASE, 0);
980 WREG32(CB_COLOR1_BASE, 0);
981 WREG32(CB_COLOR2_BASE, 0);
982 WREG32(CB_COLOR3_BASE, 0);
983 WREG32(CB_COLOR4_BASE, 0);
984 WREG32(CB_COLOR5_BASE, 0);
985 WREG32(CB_COLOR6_BASE, 0);
986 WREG32(CB_COLOR7_BASE, 0);
987
988 WREG32(TCP_CNTL, 0);
989
990 hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
991 WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);
992
993 WREG32(PA_SC_MULTI_CHIP_CNTL, 0);
994
995 WREG32(PA_CL_ENHANCE, (CLIP_VTX_REORDER_ENA |
996 NUM_CLIP_SEQ(3)));
997
998}
999
87cbf8f2
AD		 1000static int rv770_vram_scratch_init(struct radeon_device *rdev)
1001{
1002 int r;
1003 u64 gpu_addr;
1004
1005 if (rdev->vram_scratch.robj == NULL) {
1006 r = radeon_bo_create(rdev, NULL, RADEON_GPU_PAGE_SIZE,
268b2510
AD		 1007 PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM,
1008 &rdev->vram_scratch.robj);
87cbf8f2
AD		 1009 if (r) {
1010 return r;
1011 }
1012 }
1013
1014 r = radeon_bo_reserve(rdev->vram_scratch.robj, false);
1015 if (unlikely(r != 0))
1016 return r;
1017 r = radeon_bo_pin(rdev->vram_scratch.robj,
1018 RADEON_GEM_DOMAIN_VRAM, &gpu_addr);
1019 if (r) {
1020 radeon_bo_unreserve(rdev->vram_scratch.robj);
1021 return r;
1022 }
1023 r = radeon_bo_kmap(rdev->vram_scratch.robj,
1024 (void **)&rdev->vram_scratch.ptr);
1025 if (r)
1026 radeon_bo_unpin(rdev->vram_scratch.robj);
1027 radeon_bo_unreserve(rdev->vram_scratch.robj);
1028
1029 return r;
1030}
1031
1032static void rv770_vram_scratch_fini(struct radeon_device *rdev)
1033{
1034 int r;
1035
1036 if (rdev->vram_scratch.robj == NULL) {
1037 return;
1038 }
1039 r = radeon_bo_reserve(rdev->vram_scratch.robj, false);
1040 if (likely(r == 0)) {
1041 radeon_bo_kunmap(rdev->vram_scratch.robj);
1042 radeon_bo_unpin(rdev->vram_scratch.robj);
1043 radeon_bo_unreserve(rdev->vram_scratch.robj);
1044 }
1045 radeon_bo_unref(&rdev->vram_scratch.robj);
1046}
1047
0ef0c1f7
AD		 1048void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc)
1049{
1050 u64 size_bf, size_af;
1051
1052 if (mc->mc_vram_size > 0xE0000000) {
1053 /* leave room for at least 512M GTT */
1054 dev_warn(rdev->dev, "limiting VRAM\n");
1055 mc->real_vram_size = 0xE0000000;
1056 mc->mc_vram_size = 0xE0000000;
1057 }
1058 if (rdev->flags & RADEON_IS_AGP) {
1059 size_bf = mc->gtt_start;
1060 size_af = 0xFFFFFFFF - mc->gtt_end + 1;
1061 if (size_bf > size_af) {
1062 if (mc->mc_vram_size > size_bf) {
1063 dev_warn(rdev->dev, "limiting VRAM\n");
1064 mc->real_vram_size = size_bf;
1065 mc->mc_vram_size = size_bf;
1066 }
1067 mc->vram_start = mc->gtt_start - mc->mc_vram_size;
1068 } else {
1069 if (mc->mc_vram_size > size_af) {
1070 dev_warn(rdev->dev, "limiting VRAM\n");
1071 mc->real_vram_size = size_af;
1072 mc->mc_vram_size = size_af;
1073 }
1074 mc->vram_start = mc->gtt_end;
1075 }
1076 mc->vram_end = mc->vram_start + mc->mc_vram_size - 1;
1077 dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n",
1078 mc->mc_vram_size >> 20, mc->vram_start,
1079 mc->vram_end, mc->real_vram_size >> 20);
1080 } else {
b4183e30 1081 radeon_vram_location(rdev, &rdev->mc, 0);
0ef0c1f7
AD		 1082 rdev->mc.gtt_base_align = 0;
1083 radeon_gtt_location(rdev, mc);
1084 }
1085}
1086
3ce0a23d
JG		 1087int rv770_mc_init(struct radeon_device *rdev)
1088{
3ce0a23d 1089 u32 tmp;
5885b7a9 1090 int chansize, numchan;
3ce0a23d
JG		 1091
1092 /* Get VRAM informations */
3ce0a23d 1093 rdev->mc.vram_is_ddr = true;
5885b7a9
AD		 1094 tmp = RREG32(MC_ARB_RAMCFG);
1095 if (tmp & CHANSIZE_OVERRIDE) {
1096 chansize = 16;
1097 } else if (tmp & CHANSIZE_MASK) {
1098 chansize = 64;
1099 } else {
1100 chansize = 32;
1101 }
1102 tmp = RREG32(MC_SHARED_CHMAP);
1103 switch ((tmp & NOOFCHAN_MASK) >> NOOFCHAN_SHIFT) {
1104 case 0:
1105 default:
1106 numchan = 1;
1107 break;
1108 case 1:
1109 numchan = 2;
1110 break;
1111 case 2:
1112 numchan = 4;
1113 break;
1114 case 3:
1115 numchan = 8;
1116 break;
1117 }
1118 rdev->mc.vram_width = numchan * chansize;
771fe6b9 1119 /* Could aper size report 0 ? */
01d73a69
JC		 1120 rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
1121 rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
3ce0a23d
JG		 1122 /* Setup GPU memory space */
1123 rdev->mc.mc_vram_size = RREG32(CONFIG_MEMSIZE);
1124 rdev->mc.real_vram_size = RREG32(CONFIG_MEMSIZE);
51e5fcd3 1125 rdev->mc.visible_vram_size = rdev->mc.aper_size;
c919b371 1126 rdev->mc.active_vram_size = rdev->mc.visible_vram_size;
0ef0c1f7 1127 r700_vram_gtt_location(rdev, &rdev->mc);
f47299c5
AD		 1128 radeon_update_bandwidth_info(rdev);
1129
3ce0a23d
JG		 1130 return 0;
1131}
d594e46a 1132
fc30b8ef 1133static int rv770_startup(struct radeon_device *rdev)
3ce0a23d
JG		 1134{
1135 int r;
1136
9e46a48d
AD		 1137 /* enable pcie gen2 link */
1138 rv770_pcie_gen2_enable(rdev);
1139
779720a3
AD		 1140 if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
1141 r = r600_init_microcode(rdev);
1142 if (r) {
1143 DRM_ERROR("Failed to load firmware!\n");
1144 return r;
1145 }
1146 }
1147
a3c1945a 1148 rv770_mc_program(rdev);
1a029b76
JG		 1149 if (rdev->flags & RADEON_IS_AGP) {
1150 rv770_agp_enable(rdev);
1151 } else {
1152 r = rv770_pcie_gart_enable(rdev);
1153 if (r)
1154 return r;
1155 }
87cbf8f2
AD		 1156 r = rv770_vram_scratch_init(rdev);
1157 if (r)
1158 return r;
3ce0a23d 1159 rv770_gpu_init(rdev);
c38c7b64
JG		 1160 r = r600_blit_init(rdev);
1161 if (r) {
1162 r600_blit_fini(rdev);
1163 rdev->asic->copy = NULL;
1164 dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
1165 }
b70d6bb3 1166
724c80e1
AD		 1167 /* allocate wb buffer */
1168 r = radeon_wb_init(rdev);
1169 if (r)
1170 return r;
1171
d8f60cfc 1172 /* Enable IRQ */
d8f60cfc
AD		 1173 r = r600_irq_init(rdev);
1174 if (r) {
1175 DRM_ERROR("radeon: IH init failed (%d).\n", r);
1176 radeon_irq_kms_fini(rdev);
1177 return r;
1178 }
1179 r600_irq_set(rdev);
1180
3ce0a23d
JG		 1181 r = radeon_ring_init(rdev, rdev->cp.ring_size);
1182 if (r)
1183 return r;
1184 r = rv770_cp_load_microcode(rdev);
1185 if (r)
1186 return r;
1187 r = r600_cp_resume(rdev);
1188 if (r)
1189 return r;
724c80e1 1190
3ce0a23d
JG		 1191 return 0;
1192}
1193
fc30b8ef
DA		 1194int rv770_resume(struct radeon_device *rdev)
1195{
1196 int r;
1197
1a029b76
JG		 1198 /* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
1199 * posting will perform necessary task to bring back GPU into good
1200 * shape.
1201 */
fc30b8ef 1202 /* post card */
e7d40b9a 1203 atom_asic_init(rdev->mode_info.atom_context);
fc30b8ef
DA		 1204
1205 r = rv770_startup(rdev);
1206 if (r) {
1207 DRM_ERROR("r600 startup failed on resume\n");
1208 return r;
1209 }
1210
62a8ea3f 1211 r = r600_ib_test(rdev);
fc30b8ef
DA		 1212 if (r) {
1213 DRM_ERROR("radeon: failled testing IB (%d).\n", r);
1214 return r;
1215 }
8a8c6e7c
RM		 1216
1217 r = r600_audio_init(rdev);
1218 if (r) {
1219 dev_err(rdev->dev, "radeon: audio init failed\n");
1220 return r;
1221 }
1222
fc30b8ef
DA		 1223 return r;
1224
1225}
1226
3ce0a23d
JG		 1227int rv770_suspend(struct radeon_device *rdev)
1228{
4c788679
JG		 1229 int r;
1230
8a8c6e7c 1231 r600_audio_fini(rdev);
3ce0a23d
JG		 1232 /* FIXME: we should wait for ring to be empty */
1233 r700_cp_stop(rdev);
4153e584 1234 rdev->cp.ready = false;
0c45249f 1235 r600_irq_suspend(rdev);
724c80e1 1236 radeon_wb_disable(rdev);
4aac0473 1237 rv770_pcie_gart_disable(rdev);
4153e584 1238 /* unpin shaders bo */
30d2d9a5
JG		 1239 if (rdev->r600_blit.shader_obj) {
1240 r = radeon_bo_reserve(rdev->r600_blit.shader_obj, false);
1241 if (likely(r == 0)) {
1242 radeon_bo_unpin(rdev->r600_blit.shader_obj);
1243 radeon_bo_unreserve(rdev->r600_blit.shader_obj);
1244 }
4c788679 1245 }
3ce0a23d
JG		 1246 return 0;
1247}
1248
1249/* Plan is to move initialization in that function and use
1250 * helper function so that radeon_device_init pretty much
1251 * do nothing more than calling asic specific function. This
1252 * should also allow to remove a bunch of callback function
1253 * like vram_info.
1254 */
1255int rv770_init(struct radeon_device *rdev)
1256{
1257 int r;
1258
3ce0a23d
JG		 1259 r = radeon_dummy_page_init(rdev);
1260 if (r)
1261 return r;
1262 /* This don't do much */
1263 r = radeon_gem_init(rdev);
1264 if (r)
1265 return r;
1266 /* Read BIOS */
1267 if (!radeon_get_bios(rdev)) {
1268 if (ASIC_IS_AVIVO(rdev))
1269 return -EINVAL;
1270 }
1271 /* Must be an ATOMBIOS */
e7d40b9a
JG		 1272 if (!rdev->is_atom_bios) {
1273 dev_err(rdev->dev, "Expecting atombios for R600 GPU\n");
3ce0a23d 1274 return -EINVAL;
e7d40b9a 1275 }
3ce0a23d
JG		 1276 r = radeon_atombios_init(rdev);
1277 if (r)
1278 return r;
1279 /* Post card if necessary */
fd909c37 1280 if (!radeon_card_posted(rdev)) {
72542d77
DA		 1281 if (!rdev->bios) {
1282 dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
1283 return -EINVAL;
1284 }
3ce0a23d
JG		 1285 DRM_INFO("GPU not posted. posting now...\n");
1286 atom_asic_init(rdev->mode_info.atom_context);
1287 }
1288 /* Initialize scratch registers */
1289 r600_scratch_init(rdev);
1290 /* Initialize surface registers */
1291 radeon_surface_init(rdev);
7433874e 1292 /* Initialize clocks */
5e6dde7e 1293 radeon_get_clock_info(rdev->ddev);
3ce0a23d
JG		 1294 /* Fence driver */
1295 r = radeon_fence_driver_init(rdev);
1296 if (r)
1297 return r;
d594e46a 1298 /* initialize AGP */
700a0cc0
JG		 1299 if (rdev->flags & RADEON_IS_AGP) {
1300 r = radeon_agp_init(rdev);
1301 if (r)
1302 radeon_agp_disable(rdev);
1303 }
3ce0a23d 1304 r = rv770_mc_init(rdev);
b574f251 1305 if (r)
3ce0a23d 1306 return r;
3ce0a23d 1307 /* Memory manager */
4c788679 1308 r = radeon_bo_init(rdev);
3ce0a23d
JG		 1309 if (r)
1310 return r;
d8f60cfc
AD		 1311
1312 r = radeon_irq_kms_init(rdev);
1313 if (r)
1314 return r;
1315
3ce0a23d
JG		 1316 rdev->cp.ring_obj = NULL;
1317 r600_ring_init(rdev, 1024 * 1024);
1318
d8f60cfc
AD		 1319 rdev->ih.ring_obj = NULL;
1320 r600_ih_ring_init(rdev, 64 * 1024);
1321
4aac0473
JG		 1322 r = r600_pcie_gart_init(rdev);
1323 if (r)
1324 return r;
1325
779720a3 1326 rdev->accel_working = true;
fc30b8ef 1327 r = rv770_startup(rdev);
3ce0a23d 1328 if (r) {
655efd3d 1329 dev_err(rdev->dev, "disabling GPU acceleration\n");
fe251e2f 1330 r700_cp_fini(rdev);
655efd3d 1331 r600_irq_fini(rdev);
724c80e1 1332 radeon_wb_fini(rdev);
655efd3d 1333 radeon_irq_kms_fini(rdev);
75c81298 1334 rv770_pcie_gart_fini(rdev);
733289c2 1335 rdev->accel_working = false;
3ce0a23d 1336 }
733289c2 1337 if (rdev->accel_working) {
733289c2
JG		 1338 r = radeon_ib_pool_init(rdev);
1339 if (r) {
db96380e 1340 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
733289c2 1341 rdev->accel_working = false;
db96380e
JG		 1342 } else {
1343 r = r600_ib_test(rdev);
1344 if (r) {
1345 dev_err(rdev->dev, "IB test failed (%d).\n", r);
1346 rdev->accel_working = false;
1347 }
733289c2 1348 }
3ce0a23d 1349 }
8a8c6e7c
RM		 1350
1351 r = r600_audio_init(rdev);
1352 if (r) {
1353 dev_err(rdev->dev, "radeon: audio init failed\n");
1354 return r;
1355 }
1356
3ce0a23d
JG		 1357 return 0;
1358}
1359
1360void rv770_fini(struct radeon_device *rdev)
1361{
1362 r600_blit_fini(rdev);
fe251e2f 1363 r700_cp_fini(rdev);
d8f60cfc 1364 r600_irq_fini(rdev);
724c80e1 1365 radeon_wb_fini(rdev);
d8f60cfc 1366 radeon_irq_kms_fini(rdev);
4aac0473 1367 rv770_pcie_gart_fini(rdev);
87cbf8f2 1368 rv770_vram_scratch_fini(rdev);
3ce0a23d
JG		 1369 radeon_gem_fini(rdev);
1370 radeon_fence_driver_fini(rdev);
d0269ed8 1371 radeon_agp_fini(rdev);
4c788679 1372 radeon_bo_fini(rdev);
e7d40b9a 1373 radeon_atombios_fini(rdev);
3ce0a23d
JG		 1374 kfree(rdev->bios);
1375 rdev->bios = NULL;
1376 radeon_dummy_page_fini(rdev);
771fe6b9 1377}
9e46a48d
AD		 1378
1379static void rv770_pcie_gen2_enable(struct radeon_device *rdev)
1380{
1381 u32 link_width_cntl, lanes, speed_cntl, tmp;
1382 u16 link_cntl2;
1383
d42dd579
AD		 1384 if (radeon_pcie_gen2 == 0)
1385 return;
1386
9e46a48d
AD		 1387 if (rdev->flags & RADEON_IS_IGP)
1388 return;
1389
1390 if (!(rdev->flags & RADEON_IS_PCIE))
1391 return;
1392
1393 /* x2 cards have a special sequence */
1394 if (ASIC_IS_X2(rdev))
1395 return;
1396
1397 /* advertise upconfig capability */
1398 link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL);
1399 link_width_cntl &= ~LC_UPCONFIGURE_DIS;
1400 WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
1401 link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL);
1402 if (link_width_cntl & LC_RENEGOTIATION_SUPPORT) {
1403 lanes = (link_width_cntl & LC_LINK_WIDTH_RD_MASK) >> LC_LINK_WIDTH_RD_SHIFT;
1404 link_width_cntl &= ~(LC_LINK_WIDTH_MASK |
1405 LC_RECONFIG_ARC_MISSING_ESCAPE);
1406 link_width_cntl |= lanes | LC_RECONFIG_NOW |
1407 LC_RENEGOTIATE_EN | LC_UPCONFIGURE_SUPPORT;
1408 WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
1409 } else {
1410 link_width_cntl |= LC_UPCONFIGURE_DIS;
1411 WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
1412 }
1413
1414 speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
1415 if ((speed_cntl & LC_OTHER_SIDE_EVER_SENT_GEN2) &&
1416 (speed_cntl & LC_OTHER_SIDE_SUPPORTS_GEN2)) {
1417
1418 tmp = RREG32(0x541c);
1419 WREG32(0x541c, tmp | 0x8);
1420 WREG32(MM_CFGREGS_CNTL, MM_WR_TO_CFG_EN);
1421 link_cntl2 = RREG16(0x4088);
1422 link_cntl2 &= ~TARGET_LINK_SPEED_MASK;
1423 link_cntl2 |= 0x2;
1424 WREG16(0x4088, link_cntl2);
1425 WREG32(MM_CFGREGS_CNTL, 0);
1426
1427 speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
1428 speed_cntl &= ~LC_TARGET_LINK_SPEED_OVERRIDE_EN;
1429 WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
1430
1431 speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
1432 speed_cntl |= LC_CLR_FAILED_SPD_CHANGE_CNT;
1433 WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
1434
1435 speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
1436 speed_cntl &= ~LC_CLR_FAILED_SPD_CHANGE_CNT;
1437 WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
1438
1439 speed_cntl = RREG32_PCIE_P(PCIE_LC_SPEED_CNTL);
1440 speed_cntl |= LC_GEN2_EN_STRAP;
1441 WREG32_PCIE_P(PCIE_LC_SPEED_CNTL, speed_cntl);
1442
1443 } else {
1444 link_width_cntl = RREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL);
1445 /* XXX: only disable it if gen1 bridge vendor == 0x111d or 0x1106 */
1446 if (1)
1447 link_width_cntl |= LC_UPCONFIGURE_DIS;
1448 else
1449 link_width_cntl &= ~LC_UPCONFIGURE_DIS;
1450 WREG32_PCIE_P(PCIE_LC_LINK_WIDTH_CNTL, link_width_cntl);
1451 }
1452}
Linux kernel - Deliverables
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