2 * Copyright 2013 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
22 * Authors: Christian König <christian.koenig@amd.com>
25 #include <linux/firmware.h>
28 #include "radeon_asic.h"
32 * uvd_v1_0_get_rptr - get read pointer
34 * @rdev: radeon_device pointer
35 * @ring: radeon_ring pointer
37 * Returns the current hardware read pointer
39 uint32_t uvd_v1_0_get_rptr(struct radeon_device *rdev,
40 struct radeon_ring *ring)
42 return RREG32(UVD_RBC_RB_RPTR);
46 * uvd_v1_0_get_wptr - get write pointer
48 * @rdev: radeon_device pointer
49 * @ring: radeon_ring pointer
51 * Returns the current hardware write pointer
53 uint32_t uvd_v1_0_get_wptr(struct radeon_device *rdev,
54 struct radeon_ring *ring)
56 return RREG32(UVD_RBC_RB_WPTR);
60 * uvd_v1_0_set_wptr - set write pointer
62 * @rdev: radeon_device pointer
63 * @ring: radeon_ring pointer
65 * Commits the write pointer to the hardware
67 void uvd_v1_0_set_wptr(struct radeon_device *rdev,
68 struct radeon_ring *ring)
70 WREG32(UVD_RBC_RB_WPTR, ring->wptr);
74 * uvd_v1_0_fence_emit - emit an fence & trap command
76 * @rdev: radeon_device pointer
77 * @fence: fence to emit
79 * Write a fence and a trap command to the ring.
81 void uvd_v1_0_fence_emit(struct radeon_device *rdev,
82 struct radeon_fence *fence)
84 struct radeon_ring *ring = &rdev->ring[fence->ring];
85 uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr;
87 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0));
88 radeon_ring_write(ring, addr & 0xffffffff);
89 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0));
90 radeon_ring_write(ring, fence->seq);
91 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0));
92 radeon_ring_write(ring, 0);
94 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0));
95 radeon_ring_write(ring, 0);
96 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0));
97 radeon_ring_write(ring, 0);
98 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0));
99 radeon_ring_write(ring, 2);
104 * uvd_v1_0_resume - memory controller programming
106 * @rdev: radeon_device pointer
108 * Let the UVD memory controller know it's offsets
110 int uvd_v1_0_resume(struct radeon_device *rdev)
116 r = radeon_uvd_resume(rdev);
120 /* programm the VCPU memory controller bits 0-27 */
121 addr = (rdev->uvd.gpu_addr >> 3) + 16;
122 size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size) >> 3;
123 WREG32(UVD_VCPU_CACHE_OFFSET0, addr);
124 WREG32(UVD_VCPU_CACHE_SIZE0, size);
127 size = RADEON_UVD_STACK_SIZE >> 3;
128 WREG32(UVD_VCPU_CACHE_OFFSET1, addr);
129 WREG32(UVD_VCPU_CACHE_SIZE1, size);
132 size = RADEON_UVD_HEAP_SIZE >> 3;
133 WREG32(UVD_VCPU_CACHE_OFFSET2, addr);
134 WREG32(UVD_VCPU_CACHE_SIZE2, size);
137 addr = (rdev->uvd.gpu_addr >> 28) & 0xF;
138 WREG32(UVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0));
141 addr = (rdev->uvd.gpu_addr >> 32) & 0xFF;
142 WREG32(UVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31));
144 WREG32(UVD_FW_START, *((uint32_t*)rdev->uvd.cpu_addr));
150 * uvd_v1_0_init - start and test UVD block
152 * @rdev: radeon_device pointer
154 * Initialize the hardware, boot up the VCPU and do some testing
156 int uvd_v1_0_init(struct radeon_device *rdev)
158 struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
162 /* raise clocks while booting up the VCPU */
163 if (rdev->family < CHIP_RV740)
164 radeon_set_uvd_clocks(rdev, 10000, 10000);
166 radeon_set_uvd_clocks(rdev, 53300, 40000);
168 r = uvd_v1_0_start(rdev);
173 r = radeon_ring_test(rdev, R600_RING_TYPE_UVD_INDEX, ring);
179 r = radeon_ring_lock(rdev, ring, 10);
181 DRM_ERROR("radeon: ring failed to lock UVD ring (%d).\n", r);
185 tmp = PACKET0(UVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);
186 radeon_ring_write(ring, tmp);
187 radeon_ring_write(ring, 0xFFFFF);
189 tmp = PACKET0(UVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);
190 radeon_ring_write(ring, tmp);
191 radeon_ring_write(ring, 0xFFFFF);
193 tmp = PACKET0(UVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);
194 radeon_ring_write(ring, tmp);
195 radeon_ring_write(ring, 0xFFFFF);
197 /* Clear timeout status bits */
198 radeon_ring_write(ring, PACKET0(UVD_SEMA_TIMEOUT_STATUS, 0));
199 radeon_ring_write(ring, 0x8);
201 radeon_ring_write(ring, PACKET0(UVD_SEMA_CNTL, 0));
202 radeon_ring_write(ring, 3);
204 radeon_ring_unlock_commit(rdev, ring, false);
207 /* lower clocks again */
208 radeon_set_uvd_clocks(rdev, 0, 0);
211 switch (rdev->family) {
215 /* 64byte granularity workaround */
216 WREG32(MC_CONFIG, 0);
217 WREG32(MC_CONFIG, 1 << 4);
218 WREG32(RS_DQ_RD_RET_CONF, 0x3f);
219 WREG32(MC_CONFIG, 0x1f);
225 /* write clean workaround */
226 WREG32_P(UVD_VCPU_CNTL, 0x10, ~0x10);
230 /* TODO: Do we need more? */
234 DRM_INFO("UVD initialized successfully.\n");
241 * uvd_v1_0_fini - stop the hardware block
243 * @rdev: radeon_device pointer
245 * Stop the UVD block, mark ring as not ready any more
247 void uvd_v1_0_fini(struct radeon_device *rdev)
249 struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
256 * uvd_v1_0_start - start UVD block
258 * @rdev: radeon_device pointer
260 * Setup and start the UVD block
262 int uvd_v1_0_start(struct radeon_device *rdev)
264 struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
268 /* disable byte swapping */
269 u32 lmi_swap_cntl = 0;
270 u32 mp_swap_cntl = 0;
272 /* disable clock gating */
273 WREG32(UVD_CGC_GATE, 0);
275 /* disable interupt */
276 WREG32_P(UVD_MASTINT_EN, 0, ~(1 << 1));
278 /* Stall UMC and register bus before resetting VCPU */
279 WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
280 WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
283 /* put LMI, VCPU, RBC etc... into reset */
284 WREG32(UVD_SOFT_RESET, LMI_SOFT_RESET | VCPU_SOFT_RESET |
285 LBSI_SOFT_RESET | RBC_SOFT_RESET | CSM_SOFT_RESET |
286 CXW_SOFT_RESET | TAP_SOFT_RESET | LMI_UMC_SOFT_RESET);
289 /* take UVD block out of reset */
290 WREG32_P(SRBM_SOFT_RESET, 0, ~SOFT_RESET_UVD);
293 /* initialize UVD memory controller */
294 WREG32(UVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) |
295 (1 << 21) | (1 << 9) | (1 << 20));
298 /* swap (8 in 32) RB and IB */
302 WREG32(UVD_LMI_SWAP_CNTL, lmi_swap_cntl);
303 WREG32(UVD_MP_SWAP_CNTL, mp_swap_cntl);
305 WREG32(UVD_MPC_SET_MUXA0, 0x40c2040);
306 WREG32(UVD_MPC_SET_MUXA1, 0x0);
307 WREG32(UVD_MPC_SET_MUXB0, 0x40c2040);
308 WREG32(UVD_MPC_SET_MUXB1, 0x0);
309 WREG32(UVD_MPC_SET_ALU, 0);
310 WREG32(UVD_MPC_SET_MUX, 0x88);
312 /* take all subblocks out of reset, except VCPU */
313 WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
316 /* enable VCPU clock */
317 WREG32(UVD_VCPU_CNTL, 1 << 9);
320 WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
322 WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
324 /* boot up the VCPU */
325 WREG32(UVD_SOFT_RESET, 0);
328 for (i = 0; i < 10; ++i) {
330 for (j = 0; j < 100; ++j) {
331 status = RREG32(UVD_STATUS);
340 DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");
341 WREG32_P(UVD_SOFT_RESET, VCPU_SOFT_RESET, ~VCPU_SOFT_RESET);
343 WREG32_P(UVD_SOFT_RESET, 0, ~VCPU_SOFT_RESET);
349 DRM_ERROR("UVD not responding, giving up!!!\n");
353 /* enable interupt */
354 WREG32_P(UVD_MASTINT_EN, 3<<1, ~(3 << 1));
356 /* force RBC into idle state */
357 WREG32(UVD_RBC_RB_CNTL, 0x11010101);
359 /* Set the write pointer delay */
360 WREG32(UVD_RBC_RB_WPTR_CNTL, 0);
362 /* programm the 4GB memory segment for rptr and ring buffer */
363 WREG32(UVD_LMI_EXT40_ADDR, upper_32_bits(ring->gpu_addr) |
364 (0x7 << 16) | (0x1 << 31));
366 /* Initialize the ring buffer's read and write pointers */
367 WREG32(UVD_RBC_RB_RPTR, 0x0);
369 ring->wptr = RREG32(UVD_RBC_RB_RPTR);
370 WREG32(UVD_RBC_RB_WPTR, ring->wptr);
372 /* set the ring address */
373 WREG32(UVD_RBC_RB_BASE, ring->gpu_addr);
375 /* Set ring buffer size */
376 rb_bufsz = order_base_2(ring->ring_size);
377 rb_bufsz = (0x1 << 8) | rb_bufsz;
378 WREG32_P(UVD_RBC_RB_CNTL, rb_bufsz, ~0x11f1f);
384 * uvd_v1_0_stop - stop UVD block
386 * @rdev: radeon_device pointer
390 void uvd_v1_0_stop(struct radeon_device *rdev)
392 /* force RBC into idle state */
393 WREG32(UVD_RBC_RB_CNTL, 0x11010101);
395 /* Stall UMC and register bus before resetting VCPU */
396 WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
397 WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
400 /* put VCPU into reset */
401 WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
404 /* disable VCPU clock */
405 WREG32(UVD_VCPU_CNTL, 0x0);
407 /* Unstall UMC and register bus */
408 WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
409 WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
413 * uvd_v1_0_ring_test - register write test
415 * @rdev: radeon_device pointer
416 * @ring: radeon_ring pointer
418 * Test if we can successfully write to the context register
420 int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
426 WREG32(UVD_CONTEXT_ID, 0xCAFEDEAD);
427 r = radeon_ring_lock(rdev, ring, 3);
429 DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n",
433 radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0));
434 radeon_ring_write(ring, 0xDEADBEEF);
435 radeon_ring_unlock_commit(rdev, ring, false);
436 for (i = 0; i < rdev->usec_timeout; i++) {
437 tmp = RREG32(UVD_CONTEXT_ID);
438 if (tmp == 0xDEADBEEF)
443 if (i < rdev->usec_timeout) {
444 DRM_INFO("ring test on %d succeeded in %d usecs\n",
447 DRM_ERROR("radeon: ring %d test failed (0x%08X)\n",
455 * uvd_v1_0_semaphore_emit - emit semaphore command
457 * @rdev: radeon_device pointer
458 * @ring: radeon_ring pointer
459 * @semaphore: semaphore to emit commands for
460 * @emit_wait: true if we should emit a wait command
462 * Emit a semaphore command (either wait or signal) to the UVD ring.
464 bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
465 struct radeon_ring *ring,
466 struct radeon_semaphore *semaphore,
469 /* disable semaphores for UVD V1 hardware */
474 * uvd_v1_0_ib_execute - execute indirect buffer
476 * @rdev: radeon_device pointer
477 * @ib: indirect buffer to execute
479 * Write ring commands to execute the indirect buffer
481 void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
483 struct radeon_ring *ring = &rdev->ring[ib->ring];
485 radeon_ring_write(ring, PACKET0(UVD_RBC_IB_BASE, 0));
486 radeon_ring_write(ring, ib->gpu_addr);
487 radeon_ring_write(ring, PACKET0(UVD_RBC_IB_SIZE, 0));
488 radeon_ring_write(ring, ib->length_dw);
492 * uvd_v1_0_ib_test - test ib execution
494 * @rdev: radeon_device pointer
495 * @ring: radeon_ring pointer
497 * Test if we can successfully execute an IB
499 int uvd_v1_0_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
501 struct radeon_fence *fence = NULL;
504 if (rdev->family < CHIP_RV740)
505 r = radeon_set_uvd_clocks(rdev, 10000, 10000);
507 r = radeon_set_uvd_clocks(rdev, 53300, 40000);
509 DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r);
513 r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL);
515 DRM_ERROR("radeon: failed to get create msg (%d).\n", r);
519 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, &fence);
521 DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);
525 r = radeon_fence_wait(fence, false);
527 DRM_ERROR("radeon: fence wait failed (%d).\n", r);
530 DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
532 radeon_fence_unref(&fence);
533 radeon_set_uvd_clocks(rdev, 0, 0);