brintos

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1/*2 * Copyright 2013 Advanced Micro Devices, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Christian König <christian.koenig@amd.com>23 */24 25#include <linux/firmware.h>26 27#include "radeon.h"28#include "radeon_asic.h"29#include "r600d.h"30 31/**32 * uvd_v1_0_get_rptr - get read pointer33 *34 * @rdev: radeon_device pointer35 * @ring: radeon_ring pointer36 *37 * Returns the current hardware read pointer38 */39uint32_t uvd_v1_0_get_rptr(struct radeon_device *rdev,40			   struct radeon_ring *ring)41{42	return RREG32(UVD_RBC_RB_RPTR);43}44 45/**46 * uvd_v1_0_get_wptr - get write pointer47 *48 * @rdev: radeon_device pointer49 * @ring: radeon_ring pointer50 *51 * Returns the current hardware write pointer52 */53uint32_t uvd_v1_0_get_wptr(struct radeon_device *rdev,54			   struct radeon_ring *ring)55{56	return RREG32(UVD_RBC_RB_WPTR);57}58 59/**60 * uvd_v1_0_set_wptr - set write pointer61 *62 * @rdev: radeon_device pointer63 * @ring: radeon_ring pointer64 *65 * Commits the write pointer to the hardware66 */67void uvd_v1_0_set_wptr(struct radeon_device *rdev,68		       struct radeon_ring *ring)69{70	WREG32(UVD_RBC_RB_WPTR, ring->wptr);71}72 73/**74 * uvd_v1_0_fence_emit - emit an fence & trap command75 *76 * @rdev: radeon_device pointer77 * @fence: fence to emit78 *79 * Write a fence and a trap command to the ring.80 */81void uvd_v1_0_fence_emit(struct radeon_device *rdev,82			 struct radeon_fence *fence)83{84	struct radeon_ring *ring = &rdev->ring[fence->ring];85	uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr;86 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);93 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);100	return;101}102 103/**104 * uvd_v1_0_resume - memory controller programming105 *106 * @rdev: radeon_device pointer107 *108 * Let the UVD memory controller know it's offsets109 */110int uvd_v1_0_resume(struct radeon_device *rdev)111{112	uint64_t addr;113	uint32_t size;114	int r;115 116	r = radeon_uvd_resume(rdev);117	if (r)118		return r;119 120	/* program 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);125 126	addr += size;127	size = RADEON_UVD_HEAP_SIZE >> 3;128	WREG32(UVD_VCPU_CACHE_OFFSET1, addr);129	WREG32(UVD_VCPU_CACHE_SIZE1, size);130 131	addr += size;132	size = (RADEON_UVD_STACK_SIZE +133	       (RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles)) >> 3;134	WREG32(UVD_VCPU_CACHE_OFFSET2, addr);135	WREG32(UVD_VCPU_CACHE_SIZE2, size);136 137	/* bits 28-31 */138	addr = (rdev->uvd.gpu_addr >> 28) & 0xF;139	WREG32(UVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0));140 141	/* bits 32-39 */142	addr = (rdev->uvd.gpu_addr >> 32) & 0xFF;143	WREG32(UVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31));144 145	WREG32(UVD_FW_START, *((uint32_t *)rdev->uvd.cpu_addr));146 147	return 0;148}149 150/**151 * uvd_v1_0_init - start and test UVD block152 *153 * @rdev: radeon_device pointer154 *155 * Initialize the hardware, boot up the VCPU and do some testing156 */157int uvd_v1_0_init(struct radeon_device *rdev)158{159	struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];160	uint32_t tmp;161	int r;162 163	/* raise clocks while booting up the VCPU */164	if (rdev->family < CHIP_RV740)165		radeon_set_uvd_clocks(rdev, 10000, 10000);166	else167		radeon_set_uvd_clocks(rdev, 53300, 40000);168 169	r = uvd_v1_0_start(rdev);170	if (r)171		goto done;172 173	ring->ready = true;174	r = radeon_ring_test(rdev, R600_RING_TYPE_UVD_INDEX, ring);175	if (r) {176		ring->ready = false;177		goto done;178	}179 180	r = radeon_ring_lock(rdev, ring, 10);181	if (r) {182		DRM_ERROR("radeon: ring failed to lock UVD ring (%d).\n", r);183		goto done;184	}185 186	tmp = PACKET0(UVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);187	radeon_ring_write(ring, tmp);188	radeon_ring_write(ring, 0xFFFFF);189 190	tmp = PACKET0(UVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);191	radeon_ring_write(ring, tmp);192	radeon_ring_write(ring, 0xFFFFF);193 194	tmp = PACKET0(UVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);195	radeon_ring_write(ring, tmp);196	radeon_ring_write(ring, 0xFFFFF);197 198	/* Clear timeout status bits */199	radeon_ring_write(ring, PACKET0(UVD_SEMA_TIMEOUT_STATUS, 0));200	radeon_ring_write(ring, 0x8);201 202	radeon_ring_write(ring, PACKET0(UVD_SEMA_CNTL, 0));203	radeon_ring_write(ring, 3);204 205	radeon_ring_unlock_commit(rdev, ring, false);206 207done:208	/* lower clocks again */209	radeon_set_uvd_clocks(rdev, 0, 0);210 211	if (!r) {212		switch (rdev->family) {213		case CHIP_RV610:214		case CHIP_RV630:215		case CHIP_RV620:216			/* 64byte granularity workaround */217			WREG32(MC_CONFIG, 0);218			WREG32(MC_CONFIG, 1 << 4);219			WREG32(RS_DQ_RD_RET_CONF, 0x3f);220			WREG32(MC_CONFIG, 0x1f);221 222			fallthrough;223		case CHIP_RV670:224		case CHIP_RV635:225 226			/* write clean workaround */227			WREG32_P(UVD_VCPU_CNTL, 0x10, ~0x10);228			break;229 230		default:231			/* TODO: Do we need more? */232			break;233		}234 235		DRM_INFO("UVD initialized successfully.\n");236	}237 238	return r;239}240 241/**242 * uvd_v1_0_fini - stop the hardware block243 *244 * @rdev: radeon_device pointer245 *246 * Stop the UVD block, mark ring as not ready any more247 */248void uvd_v1_0_fini(struct radeon_device *rdev)249{250	struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];251 252	uvd_v1_0_stop(rdev);253	ring->ready = false;254}255 256/**257 * uvd_v1_0_start - start UVD block258 *259 * @rdev: radeon_device pointer260 *261 * Setup and start the UVD block262 */263int uvd_v1_0_start(struct radeon_device *rdev)264{265	struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];266	uint32_t rb_bufsz;267	int i, j, r;268 269	/* disable byte swapping */270	u32 lmi_swap_cntl = 0;271	u32 mp_swap_cntl = 0;272 273	/* disable clock gating */274	WREG32(UVD_CGC_GATE, 0);275 276	/* disable interupt */277	WREG32_P(UVD_MASTINT_EN, 0, ~(1 << 1));278 279	/* Stall UMC and register bus before resetting VCPU */280	WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));281	WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));282	mdelay(1);283 284	/* put LMI, VCPU, RBC etc... into reset */285	WREG32(UVD_SOFT_RESET, LMI_SOFT_RESET | VCPU_SOFT_RESET |286	       LBSI_SOFT_RESET | RBC_SOFT_RESET | CSM_SOFT_RESET |287	       CXW_SOFT_RESET | TAP_SOFT_RESET | LMI_UMC_SOFT_RESET);288	mdelay(5);289 290	/* take UVD block out of reset */291	WREG32_P(SRBM_SOFT_RESET, 0, ~SOFT_RESET_UVD);292	mdelay(5);293 294	/* initialize UVD memory controller */295	WREG32(UVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) |296			     (1 << 21) | (1 << 9) | (1 << 20));297 298#ifdef __BIG_ENDIAN299	/* swap (8 in 32) RB and IB */300	lmi_swap_cntl = 0xa;301	mp_swap_cntl = 0;302#endif303	WREG32(UVD_LMI_SWAP_CNTL, lmi_swap_cntl);304	WREG32(UVD_MP_SWAP_CNTL, mp_swap_cntl);305 306	WREG32(UVD_MPC_SET_MUXA0, 0x40c2040);307	WREG32(UVD_MPC_SET_MUXA1, 0x0);308	WREG32(UVD_MPC_SET_MUXB0, 0x40c2040);309	WREG32(UVD_MPC_SET_MUXB1, 0x0);310	WREG32(UVD_MPC_SET_ALU, 0);311	WREG32(UVD_MPC_SET_MUX, 0x88);312 313	/* take all subblocks out of reset, except VCPU */314	WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);315	mdelay(5);316 317	/* enable VCPU clock */318	WREG32(UVD_VCPU_CNTL,  1 << 9);319 320	/* enable UMC */321	WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));322 323	WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));324 325	/* boot up the VCPU */326	WREG32(UVD_SOFT_RESET, 0);327	mdelay(10);328 329	for (i = 0; i < 10; ++i) {330		uint32_t status;331		for (j = 0; j < 100; ++j) {332			status = RREG32(UVD_STATUS);333			if (status & 2)334				break;335			mdelay(10);336		}337		r = 0;338		if (status & 2)339			break;340 341		DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");342		WREG32_P(UVD_SOFT_RESET, VCPU_SOFT_RESET, ~VCPU_SOFT_RESET);343		mdelay(10);344		WREG32_P(UVD_SOFT_RESET, 0, ~VCPU_SOFT_RESET);345		mdelay(10);346		r = -1;347	}348 349	if (r) {350		DRM_ERROR("UVD not responding, giving up!!!\n");351		return r;352	}353 354	/* enable interupt */355	WREG32_P(UVD_MASTINT_EN, 3<<1, ~(3 << 1));356 357	/* force RBC into idle state */358	WREG32(UVD_RBC_RB_CNTL, 0x11010101);359 360	/* Set the write pointer delay */361	WREG32(UVD_RBC_RB_WPTR_CNTL, 0);362 363	/* program the 4GB memory segment for rptr and ring buffer */364	WREG32(UVD_LMI_EXT40_ADDR, upper_32_bits(ring->gpu_addr) |365				   (0x7 << 16) | (0x1 << 31));366 367	/* Initialize the ring buffer's read and write pointers */368	WREG32(UVD_RBC_RB_RPTR, 0x0);369 370	ring->wptr = RREG32(UVD_RBC_RB_RPTR);371	WREG32(UVD_RBC_RB_WPTR, ring->wptr);372 373	/* set the ring address */374	WREG32(UVD_RBC_RB_BASE, ring->gpu_addr);375 376	/* Set ring buffer size */377	rb_bufsz = order_base_2(ring->ring_size);378	rb_bufsz = (0x1 << 8) | rb_bufsz;379	WREG32_P(UVD_RBC_RB_CNTL, rb_bufsz, ~0x11f1f);380 381	return 0;382}383 384/**385 * uvd_v1_0_stop - stop UVD block386 *387 * @rdev: radeon_device pointer388 *389 * stop the UVD block390 */391void uvd_v1_0_stop(struct radeon_device *rdev)392{393	/* force RBC into idle state */394	WREG32(UVD_RBC_RB_CNTL, 0x11010101);395 396	/* Stall UMC and register bus before resetting VCPU */397	WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));398	WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));399	mdelay(1);400 401	/* put VCPU into reset */402	WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);403	mdelay(5);404 405	/* disable VCPU clock */406	WREG32(UVD_VCPU_CNTL, 0x0);407 408	/* Unstall UMC and register bus */409	WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));410	WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));411}412 413/**414 * uvd_v1_0_ring_test - register write test415 *416 * @rdev: radeon_device pointer417 * @ring: radeon_ring pointer418 *419 * Test if we can successfully write to the context register420 */421int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)422{423	uint32_t tmp = 0;424	unsigned i;425	int r;426 427	WREG32(UVD_CONTEXT_ID, 0xCAFEDEAD);428	r = radeon_ring_lock(rdev, ring, 3);429	if (r) {430		DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n",431			  ring->idx, r);432		return r;433	}434	radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0));435	radeon_ring_write(ring, 0xDEADBEEF);436	radeon_ring_unlock_commit(rdev, ring, false);437	for (i = 0; i < rdev->usec_timeout; i++) {438		tmp = RREG32(UVD_CONTEXT_ID);439		if (tmp == 0xDEADBEEF)440			break;441		udelay(1);442	}443 444	if (i < rdev->usec_timeout) {445		DRM_INFO("ring test on %d succeeded in %d usecs\n",446			 ring->idx, i);447	} else {448		DRM_ERROR("radeon: ring %d test failed (0x%08X)\n",449			  ring->idx, tmp);450		r = -EINVAL;451	}452	return r;453}454 455/**456 * uvd_v1_0_semaphore_emit - emit semaphore command457 *458 * @rdev: radeon_device pointer459 * @ring: radeon_ring pointer460 * @semaphore: semaphore to emit commands for461 * @emit_wait: true if we should emit a wait command462 *463 * Emit a semaphore command (either wait or signal) to the UVD ring.464 */465bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev,466			     struct radeon_ring *ring,467			     struct radeon_semaphore *semaphore,468			     bool emit_wait)469{470	/* disable semaphores for UVD V1 hardware */471	return false;472}473 474/**475 * uvd_v1_0_ib_execute - execute indirect buffer476 *477 * @rdev: radeon_device pointer478 * @ib: indirect buffer to execute479 *480 * Write ring commands to execute the indirect buffer481 */482void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)483{484	struct radeon_ring *ring = &rdev->ring[ib->ring];485 486	radeon_ring_write(ring, PACKET0(UVD_RBC_IB_BASE, 0));487	radeon_ring_write(ring, ib->gpu_addr);488	radeon_ring_write(ring, PACKET0(UVD_RBC_IB_SIZE, 0));489	radeon_ring_write(ring, ib->length_dw);490}491 492/**493 * uvd_v1_0_ib_test - test ib execution494 *495 * @rdev: radeon_device pointer496 * @ring: radeon_ring pointer497 *498 * Test if we can successfully execute an IB499 */500int uvd_v1_0_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)501{502	struct radeon_fence *fence = NULL;503	int r;504 505	if (rdev->family < CHIP_RV740)506		r = radeon_set_uvd_clocks(rdev, 10000, 10000);507	else508		r = radeon_set_uvd_clocks(rdev, 53300, 40000);509	if (r) {510		DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r);511		return r;512	}513 514	r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL);515	if (r) {516		DRM_ERROR("radeon: failed to get create msg (%d).\n", r);517		goto error;518	}519 520	r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, &fence);521	if (r) {522		DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);523		goto error;524	}525 526	r = radeon_fence_wait_timeout(fence, false, usecs_to_jiffies(527		RADEON_USEC_IB_TEST_TIMEOUT));528	if (r < 0) {529		DRM_ERROR("radeon: fence wait failed (%d).\n", r);530		goto error;531	} else if (r == 0) {532		DRM_ERROR("radeon: fence wait timed out.\n");533		r = -ETIMEDOUT;534		goto error;535	}536	r = 0;537	DRM_INFO("ib test on ring %d succeeded\n",  ring->idx);538error:539	radeon_fence_unref(&fence);540	radeon_set_uvd_clocks(rdev, 0, 0);541	return r;542}543