1/*
2 * Copyright 2013 Advanced Micro Devices, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
16 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
17 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
18 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19 * USE OR OTHER DEALINGS IN THE SOFTWARE.
20 *
21 * The above copyright notice and this permission notice (including the
22 * next paragraph) shall be included in all copies or substantial portions
23 * of the Software.
24 *
25 * Authors: Christian König <christian.koenig@amd.com>
26 */
27
28#include <linux/firmware.h>
29
30#include "radeon.h"
31#include "radeon_asic.h"
32#include "sid.h"
33#include "vce.h"
34
35#define VCE_V1_0_FW_SIZE (256 * 1024)
36#define VCE_V1_0_STACK_SIZE (64 * 1024)
37#define VCE_V1_0_DATA_SIZE (7808 * (RADEON_MAX_VCE_HANDLES + 1))
38
39struct vce_v1_0_fw_signature
40{
41 int32_t off;
42 uint32_t len;
43 int32_t num;
44 struct {
45 uint32_t chip_id;
46 uint32_t keyselect;
47 uint32_t nonce[4];
48 uint32_t sigval[4];
49 } val[8];
50};
51
52/**
53 * vce_v1_0_get_rptr - get read pointer
54 *
55 * @rdev: radeon_device pointer
56 * @ring: radeon_ring pointer
57 *
58 * Returns the current hardware read pointer
59 */
60uint32_t vce_v1_0_get_rptr(struct radeon_device *rdev,
61 struct radeon_ring *ring)
62{
63 if (ring->idx == TN_RING_TYPE_VCE1_INDEX)
64 return RREG32(VCE_RB_RPTR);
65 else
66 return RREG32(VCE_RB_RPTR2);
67}
68
69/**
70 * vce_v1_0_get_wptr - get write pointer
71 *
72 * @rdev: radeon_device pointer
73 * @ring: radeon_ring pointer
74 *
75 * Returns the current hardware write pointer
76 */
77uint32_t vce_v1_0_get_wptr(struct radeon_device *rdev,
78 struct radeon_ring *ring)
79{
80 if (ring->idx == TN_RING_TYPE_VCE1_INDEX)
81 return RREG32(VCE_RB_WPTR);
82 else
83 return RREG32(VCE_RB_WPTR2);
84}
85
86/**
87 * vce_v1_0_set_wptr - set write pointer
88 *
89 * @rdev: radeon_device pointer
90 * @ring: radeon_ring pointer
91 *
92 * Commits the write pointer to the hardware
93 */
94void vce_v1_0_set_wptr(struct radeon_device *rdev,
95 struct radeon_ring *ring)
96{
97 if (ring->idx == TN_RING_TYPE_VCE1_INDEX)
98 WREG32(VCE_RB_WPTR, ring->wptr);
99 else
100 WREG32(VCE_RB_WPTR2, ring->wptr);
101}
102
103void vce_v1_0_enable_mgcg(struct radeon_device *rdev, bool enable)
104{
105 u32 tmp;
106
107 if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_VCE_MGCG)) {
108 tmp = RREG32(VCE_CLOCK_GATING_A);
109 tmp |= CGC_DYN_CLOCK_MODE;
110 WREG32(VCE_CLOCK_GATING_A, tmp);
111
112 tmp = RREG32(VCE_UENC_CLOCK_GATING);
113 tmp &= ~0x1ff000;
114 tmp |= 0xff800000;
115 WREG32(VCE_UENC_CLOCK_GATING, tmp);
116
117 tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
118 tmp &= ~0x3ff;
119 WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
120 } else {
121 tmp = RREG32(VCE_CLOCK_GATING_A);
122 tmp &= ~CGC_DYN_CLOCK_MODE;
123 WREG32(VCE_CLOCK_GATING_A, tmp);
124
125 tmp = RREG32(VCE_UENC_CLOCK_GATING);
126 tmp |= 0x1ff000;
127 tmp &= ~0xff800000;
128 WREG32(VCE_UENC_CLOCK_GATING, tmp);
129
130 tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
131 tmp |= 0x3ff;
132 WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
133 }
134}
135
136static void vce_v1_0_init_cg(struct radeon_device *rdev)
137{
138 u32 tmp;
139
140 tmp = RREG32(VCE_CLOCK_GATING_A);
141 tmp |= CGC_DYN_CLOCK_MODE;
142 WREG32(VCE_CLOCK_GATING_A, tmp);
143
144 tmp = RREG32(VCE_CLOCK_GATING_B);
145 tmp |= 0x1e;
146 tmp &= ~0xe100e1;
147 WREG32(VCE_CLOCK_GATING_B, tmp);
148
149 tmp = RREG32(VCE_UENC_CLOCK_GATING);
150 tmp &= ~0xff9ff000;
151 WREG32(VCE_UENC_CLOCK_GATING, tmp);
152
153 tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
154 tmp &= ~0x3ff;
155 WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
156}
157
158int vce_v1_0_load_fw(struct radeon_device *rdev, uint32_t *data)
159{
160 struct vce_v1_0_fw_signature *sign = (void*)rdev->vce_fw->data;
161 uint32_t chip_id;
162 int i;
163
164 switch (rdev->family) {
165 case CHIP_TAHITI:
166 chip_id = 0x01000014;
167 break;
168 case CHIP_VERDE:
169 chip_id = 0x01000015;
170 break;
171 case CHIP_PITCAIRN:
172 chip_id = 0x01000016;
173 break;
174 case CHIP_ARUBA:
175 chip_id = 0x01000017;
176 break;
177 default:
178 return -EINVAL;
179 }
180
181 for (i = 0; i < le32_to_cpu(sign->num); ++i) {
182 if (le32_to_cpu(sign->val[i].chip_id) == chip_id)
183 break;
184 }
185
186 if (i == le32_to_cpu(sign->num))
187 return -EINVAL;
188
189 data += (256 - 64) / 4;
190 data[0] = sign->val[i].nonce[0];
191 data[1] = sign->val[i].nonce[1];
192 data[2] = sign->val[i].nonce[2];
193 data[3] = sign->val[i].nonce[3];
194 data[4] = cpu_to_le32(le32_to_cpu(sign->len) + 64);
195
196 memset(&data[5], 0, 44);
197 memcpy(&data[16], &sign[1], rdev->vce_fw->size - sizeof(*sign));
198
199 data += (le32_to_cpu(sign->len) + 64) / 4;
200 data[0] = sign->val[i].sigval[0];
201 data[1] = sign->val[i].sigval[1];
202 data[2] = sign->val[i].sigval[2];
203 data[3] = sign->val[i].sigval[3];
204
205 rdev->vce.keyselect = le32_to_cpu(sign->val[i].keyselect);
206
207 return 0;
208}
209
210unsigned vce_v1_0_bo_size(struct radeon_device *rdev)
211{
212 WARN_ON(VCE_V1_0_FW_SIZE < rdev->vce_fw->size);
213 return VCE_V1_0_FW_SIZE + VCE_V1_0_STACK_SIZE + VCE_V1_0_DATA_SIZE;
214}
215
216int vce_v1_0_resume(struct radeon_device *rdev)
217{
218 uint64_t addr = rdev->vce.gpu_addr;
219 uint32_t size;
220 int i;
221
222 WREG32_P(VCE_CLOCK_GATING_A, 0, ~(1 << 16));
223 WREG32_P(VCE_UENC_CLOCK_GATING, 0x1FF000, ~0xFF9FF000);
224 WREG32_P(VCE_UENC_REG_CLOCK_GATING, 0x3F, ~0x3F);
225 WREG32(VCE_CLOCK_GATING_B, 0);
226
227 WREG32_P(VCE_LMI_FW_PERIODIC_CTRL, 0x4, ~0x4);
228
229 WREG32(VCE_LMI_CTRL, 0x00398000);
230 WREG32_P(VCE_LMI_CACHE_CTRL, 0x0, ~0x1);
231 WREG32(VCE_LMI_SWAP_CNTL, 0);
232 WREG32(VCE_LMI_SWAP_CNTL1, 0);
233 WREG32(VCE_LMI_VM_CTRL, 0);
234
235 WREG32(VCE_VCPU_SCRATCH7, RADEON_MAX_VCE_HANDLES);
236
237 addr += 256;
238 size = VCE_V1_0_FW_SIZE;
239 WREG32(VCE_VCPU_CACHE_OFFSET0, addr & 0x7fffffff);
240 WREG32(VCE_VCPU_CACHE_SIZE0, size);
241
242 addr += size;
243 size = VCE_V1_0_STACK_SIZE;
244 WREG32(VCE_VCPU_CACHE_OFFSET1, addr & 0x7fffffff);
245 WREG32(VCE_VCPU_CACHE_SIZE1, size);
246
247 addr += size;
248 size = VCE_V1_0_DATA_SIZE;
249 WREG32(VCE_VCPU_CACHE_OFFSET2, addr & 0x7fffffff);
250 WREG32(VCE_VCPU_CACHE_SIZE2, size);
251
252 WREG32_P(VCE_LMI_CTRL2, 0x0, ~0x100);
253
254 WREG32(VCE_LMI_FW_START_KEYSEL, rdev->vce.keyselect);
255
256 for (i = 0; i < 10; ++i) {
257 mdelay(10);
258 if (RREG32(VCE_FW_REG_STATUS) & VCE_FW_REG_STATUS_DONE)
259 break;
260 }
261
262 if (i == 10)
263 return -ETIMEDOUT;
264
265 if (!(RREG32(VCE_FW_REG_STATUS) & VCE_FW_REG_STATUS_PASS))
266 return -EINVAL;
267
268 for (i = 0; i < 10; ++i) {
269 mdelay(10);
270 if (!(RREG32(VCE_FW_REG_STATUS) & VCE_FW_REG_STATUS_BUSY))
271 break;
272 }
273
274 if (i == 10)
275 return -ETIMEDOUT;
276
277 vce_v1_0_init_cg(rdev);
278
279 return 0;
280}
281
282/**
283 * vce_v1_0_start - start VCE block
284 *
285 * @rdev: radeon_device pointer
286 *
287 * Setup and start the VCE block
288 */
289int vce_v1_0_start(struct radeon_device *rdev)
290{
291 struct radeon_ring *ring;
292 int i, j, r;
293
294 /* set BUSY flag */
295 WREG32_P(VCE_STATUS, 1, ~1);
296
297 ring = &rdev->ring[TN_RING_TYPE_VCE1_INDEX];
298 WREG32(VCE_RB_RPTR, ring->wptr);
299 WREG32(VCE_RB_WPTR, ring->wptr);
300 WREG32(VCE_RB_BASE_LO, ring->gpu_addr);
301 WREG32(VCE_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
302 WREG32(VCE_RB_SIZE, ring->ring_size / 4);
303
304 ring = &rdev->ring[TN_RING_TYPE_VCE2_INDEX];
305 WREG32(VCE_RB_RPTR2, ring->wptr);
306 WREG32(VCE_RB_WPTR2, ring->wptr);
307 WREG32(VCE_RB_BASE_LO2, ring->gpu_addr);
308 WREG32(VCE_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
309 WREG32(VCE_RB_SIZE2, ring->ring_size / 4);
310
311 WREG32_P(VCE_VCPU_CNTL, VCE_CLK_EN, ~VCE_CLK_EN);
312
313 WREG32_P(VCE_SOFT_RESET,
314 VCE_ECPU_SOFT_RESET |
315 VCE_FME_SOFT_RESET, ~(
316 VCE_ECPU_SOFT_RESET |
317 VCE_FME_SOFT_RESET));
318
319 mdelay(100);
320
321 WREG32_P(VCE_SOFT_RESET, 0, ~(
322 VCE_ECPU_SOFT_RESET |
323 VCE_FME_SOFT_RESET));
324
325 for (i = 0; i < 10; ++i) {
326 uint32_t status;
327 for (j = 0; j < 100; ++j) {
328 status = RREG32(VCE_STATUS);
329 if (status & 2)
330 break;
331 mdelay(10);
332 }
333 r = 0;
334 if (status & 2)
335 break;
336
337 DRM_ERROR("VCE not responding, trying to reset the ECPU!!!\n");
338 WREG32_P(VCE_SOFT_RESET, VCE_ECPU_SOFT_RESET, ~VCE_ECPU_SOFT_RESET);
339 mdelay(10);
340 WREG32_P(VCE_SOFT_RESET, 0, ~VCE_ECPU_SOFT_RESET);
341 mdelay(10);
342 r = -1;
343 }
344
345 /* clear BUSY flag */
346 WREG32_P(VCE_STATUS, 0, ~1);
347
348 if (r) {
349 DRM_ERROR("VCE not responding, giving up!!!\n");
350 return r;
351 }
352
353 return 0;
354}
355
356int vce_v1_0_init(struct radeon_device *rdev)
357{
358 struct radeon_ring *ring;
359 int r;
360
361 r = vce_v1_0_start(rdev);
362 if (r)
363 return r;
364
365 ring = &rdev->ring[TN_RING_TYPE_VCE1_INDEX];
366 ring->ready = true;
367 r = radeon_ring_test(rdev, TN_RING_TYPE_VCE1_INDEX, ring);
368 if (r) {
369 ring->ready = false;
370 return r;
371 }
372
373 ring = &rdev->ring[TN_RING_TYPE_VCE2_INDEX];
374 ring->ready = true;
375 r = radeon_ring_test(rdev, TN_RING_TYPE_VCE2_INDEX, ring);
376 if (r) {
377 ring->ready = false;
378 return r;
379 }
380
381 DRM_INFO("VCE initialized successfully.\n");
382
383 return 0;
384}
385

source code of linux/drivers/gpu/drm/radeon/vce_v1_0.c