--- /dev/null
+/*
+ * Copyright 2013 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Christian König <christian.koenig@amd.com>
+ */
+
+#include <linux/firmware.h>
+#include <drm/drmP.h>
+#include "radeon.h"
+#include "radeon_asic.h"
+#include "r600d.h"
+
+/**
+ * uvd_v1_0_get_rptr - get read pointer
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Returns the current hardware read pointer
+ */
+uint32_t uvd_v1_0_get_rptr(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+{
+ return RREG32(UVD_RBC_RB_RPTR);
+}
+
+/**
+ * uvd_v1_0_get_wptr - get write pointer
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Returns the current hardware write pointer
+ */
+uint32_t uvd_v1_0_get_wptr(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+{
+ return RREG32(UVD_RBC_RB_WPTR);
+}
+
+/**
+ * uvd_v1_0_set_wptr - set write pointer
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Commits the write pointer to the hardware
+ */
+void uvd_v1_0_set_wptr(struct radeon_device *rdev,
+ struct radeon_ring *ring)
+{
+ WREG32(UVD_RBC_RB_WPTR, ring->wptr);
+}
+
+/**
+ * uvd_v1_0_fence_emit - emit an fence & trap command
+ *
+ * @rdev: radeon_device pointer
+ * @fence: fence to emit
+ *
+ * Write a fence and a trap command to the ring.
+ */
+void uvd_v1_0_fence_emit(struct radeon_device *rdev,
+ struct radeon_fence *fence)
+{
+ struct radeon_ring *ring = &rdev->ring[fence->ring];
+ uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr;
+
+ radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0));
+ radeon_ring_write(ring, addr & 0xffffffff);
+ radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0));
+ radeon_ring_write(ring, fence->seq);
+ radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0));
+ radeon_ring_write(ring, 0);
+
+ radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0));
+ radeon_ring_write(ring, 0);
+ radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0));
+ radeon_ring_write(ring, 0);
+ radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0));
+ radeon_ring_write(ring, 2);
+ return;
+}
+
+/**
+ * uvd_v1_0_resume - memory controller programming
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Let the UVD memory controller know it's offsets
+ */
+int uvd_v1_0_resume(struct radeon_device *rdev)
+{
+ uint64_t addr;
+ uint32_t size;
+ int r;
+
+ r = radeon_uvd_resume(rdev);
+ if (r)
+ return r;
+
+ /* programm the VCPU memory controller bits 0-27 */
+ addr = (rdev->uvd.gpu_addr >> 3) + 16;
+ size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size) >> 3;
+ WREG32(UVD_VCPU_CACHE_OFFSET0, addr);
+ WREG32(UVD_VCPU_CACHE_SIZE0, size);
+
+ addr += size;
+ size = RADEON_UVD_STACK_SIZE >> 3;
+ WREG32(UVD_VCPU_CACHE_OFFSET1, addr);
+ WREG32(UVD_VCPU_CACHE_SIZE1, size);
+
+ addr += size;
+ size = RADEON_UVD_HEAP_SIZE >> 3;
+ WREG32(UVD_VCPU_CACHE_OFFSET2, addr);
+ WREG32(UVD_VCPU_CACHE_SIZE2, size);
+
+ /* bits 28-31 */
+ addr = (rdev->uvd.gpu_addr >> 28) & 0xF;
+ WREG32(UVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0));
+
+ /* bits 32-39 */
+ addr = (rdev->uvd.gpu_addr >> 32) & 0xFF;
+ WREG32(UVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31));
+
+ WREG32(UVD_FW_START, *((uint32_t*)rdev->uvd.cpu_addr));
+
+ return 0;
+}
+
+/**
+ * uvd_v1_0_init - start and test UVD block
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Initialize the hardware, boot up the VCPU and do some testing
+ */
+int uvd_v1_0_init(struct radeon_device *rdev)
+{
+ struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
+ uint32_t tmp;
+ int r;
+
+ /* raise clocks while booting up the VCPU */
+ if (rdev->family < CHIP_RV740)
+ radeon_set_uvd_clocks(rdev, 10000, 10000);
+ else
+ radeon_set_uvd_clocks(rdev, 53300, 40000);
+
+ r = uvd_v1_0_start(rdev);
+ if (r)
+ goto done;
+
+ ring->ready = true;
+ r = radeon_ring_test(rdev, R600_RING_TYPE_UVD_INDEX, ring);
+ if (r) {
+ ring->ready = false;
+ goto done;
+ }
+
+ r = radeon_ring_lock(rdev, ring, 10);
+ if (r) {
+ DRM_ERROR("radeon: ring failed to lock UVD ring (%d).\n", r);
+ goto done;
+ }
+
+ tmp = PACKET0(UVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);
+ radeon_ring_write(ring, tmp);
+ radeon_ring_write(ring, 0xFFFFF);
+
+ tmp = PACKET0(UVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);
+ radeon_ring_write(ring, tmp);
+ radeon_ring_write(ring, 0xFFFFF);
+
+ tmp = PACKET0(UVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);
+ radeon_ring_write(ring, tmp);
+ radeon_ring_write(ring, 0xFFFFF);
+
+ /* Clear timeout status bits */
+ radeon_ring_write(ring, PACKET0(UVD_SEMA_TIMEOUT_STATUS, 0));
+ radeon_ring_write(ring, 0x8);
+
+ radeon_ring_write(ring, PACKET0(UVD_SEMA_CNTL, 0));
+ radeon_ring_write(ring, 3);
+
+ radeon_ring_unlock_commit(rdev, ring, false);
+
+done:
+ /* lower clocks again */
+ radeon_set_uvd_clocks(rdev, 0, 0);
+
+ if (!r) {
+ switch (rdev->family) {
+ case CHIP_RV610:
+ case CHIP_RV630:
+ case CHIP_RV620:
+ /* 64byte granularity workaround */
+ WREG32(MC_CONFIG, 0);
+ WREG32(MC_CONFIG, 1 << 4);
+ WREG32(RS_DQ_RD_RET_CONF, 0x3f);
+ WREG32(MC_CONFIG, 0x1f);
+
+ /* fall through */
+ case CHIP_RV670:
+ case CHIP_RV635:
+
+ /* write clean workaround */
+ WREG32_P(UVD_VCPU_CNTL, 0x10, ~0x10);
+ break;
+
+ default:
+ /* TODO: Do we need more? */
+ break;
+ }
+
+ DRM_INFO("UVD initialized successfully.\n");
+ }
+
+ return r;
+}
+
+/**
+ * uvd_v1_0_fini - stop the hardware block
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Stop the UVD block, mark ring as not ready any more
+ */
+void uvd_v1_0_fini(struct radeon_device *rdev)
+{
+ struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
+
+ uvd_v1_0_stop(rdev);
+ ring->ready = false;
+}
+
+/**
+ * uvd_v1_0_start - start UVD block
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Setup and start the UVD block
+ */
+int uvd_v1_0_start(struct radeon_device *rdev)
+{
+ struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
+ uint32_t rb_bufsz;
+ int i, j, r;
+
+ /* disable byte swapping */
+ u32 lmi_swap_cntl = 0;
+ u32 mp_swap_cntl = 0;
+
+ /* disable clock gating */
+ WREG32(UVD_CGC_GATE, 0);
+
+ /* disable interupt */
+ WREG32_P(UVD_MASTINT_EN, 0, ~(1 << 1));
+
+ /* Stall UMC and register bus before resetting VCPU */
+ WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
+ WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
+ mdelay(1);
+
+ /* put LMI, VCPU, RBC etc... into reset */
+ WREG32(UVD_SOFT_RESET, LMI_SOFT_RESET | VCPU_SOFT_RESET |
+ LBSI_SOFT_RESET | RBC_SOFT_RESET | CSM_SOFT_RESET |
+ CXW_SOFT_RESET | TAP_SOFT_RESET | LMI_UMC_SOFT_RESET);
+ mdelay(5);
+
+ /* take UVD block out of reset */
+ WREG32_P(SRBM_SOFT_RESET, 0, ~SOFT_RESET_UVD);
+ mdelay(5);
+
+ /* initialize UVD memory controller */
+ WREG32(UVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) |
+ (1 << 21) | (1 << 9) | (1 << 20));
+
+#ifdef __BIG_ENDIAN
+ /* swap (8 in 32) RB and IB */
+ lmi_swap_cntl = 0xa;
+ mp_swap_cntl = 0;
+#endif
+ WREG32(UVD_LMI_SWAP_CNTL, lmi_swap_cntl);
+ WREG32(UVD_MP_SWAP_CNTL, mp_swap_cntl);
+
+ WREG32(UVD_MPC_SET_MUXA0, 0x40c2040);
+ WREG32(UVD_MPC_SET_MUXA1, 0x0);
+ WREG32(UVD_MPC_SET_MUXB0, 0x40c2040);
+ WREG32(UVD_MPC_SET_MUXB1, 0x0);
+ WREG32(UVD_MPC_SET_ALU, 0);
+ WREG32(UVD_MPC_SET_MUX, 0x88);
+
+ /* take all subblocks out of reset, except VCPU */
+ WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
+ mdelay(5);
+
+ /* enable VCPU clock */
+ WREG32(UVD_VCPU_CNTL, 1 << 9);
+
+ /* enable UMC */
+ WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
+
+ WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
+
+ /* boot up the VCPU */
+ WREG32(UVD_SOFT_RESET, 0);
+ mdelay(10);
+
+ for (i = 0; i < 10; ++i) {
+ uint32_t status;
+ for (j = 0; j < 100; ++j) {
+ status = RREG32(UVD_STATUS);
+ if (status & 2)
+ break;
+ mdelay(10);
+ }
+ r = 0;
+ if (status & 2)
+ break;
+
+ DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");
+ WREG32_P(UVD_SOFT_RESET, VCPU_SOFT_RESET, ~VCPU_SOFT_RESET);
+ mdelay(10);
+ WREG32_P(UVD_SOFT_RESET, 0, ~VCPU_SOFT_RESET);
+ mdelay(10);
+ r = -1;
+ }
+
+ if (r) {
+ DRM_ERROR("UVD not responding, giving up!!!\n");
+ return r;
+ }
+
+ /* enable interupt */
+ WREG32_P(UVD_MASTINT_EN, 3<<1, ~(3 << 1));
+
+ /* force RBC into idle state */
+ WREG32(UVD_RBC_RB_CNTL, 0x11010101);
+
+ /* Set the write pointer delay */
+ WREG32(UVD_RBC_RB_WPTR_CNTL, 0);
+
+ /* programm the 4GB memory segment for rptr and ring buffer */
+ WREG32(UVD_LMI_EXT40_ADDR, upper_32_bits(ring->gpu_addr) |
+ (0x7 << 16) | (0x1 << 31));
+
+ /* Initialize the ring buffer's read and write pointers */
+ WREG32(UVD_RBC_RB_RPTR, 0x0);
+
+ ring->wptr = RREG32(UVD_RBC_RB_RPTR);
+ WREG32(UVD_RBC_RB_WPTR, ring->wptr);
+
+ /* set the ring address */
+ WREG32(UVD_RBC_RB_BASE, ring->gpu_addr);
+
+ /* Set ring buffer size */
+ rb_bufsz = order_base_2(ring->ring_size);
+ rb_bufsz = (0x1 << 8) | rb_bufsz;
+ WREG32_P(UVD_RBC_RB_CNTL, rb_bufsz, ~0x11f1f);
+
+ return 0;
+}
+
+/**
+ * uvd_v1_0_stop - stop UVD block
+ *
+ * @rdev: radeon_device pointer
+ *
+ * stop the UVD block
+ */
+void uvd_v1_0_stop(struct radeon_device *rdev)
+{
+ /* force RBC into idle state */
+ WREG32(UVD_RBC_RB_CNTL, 0x11010101);
+
+ /* Stall UMC and register bus before resetting VCPU */
+ WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
+ WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
+ mdelay(1);
+
+ /* put VCPU into reset */
+ WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
+ mdelay(5);
+
+ /* disable VCPU clock */
+ WREG32(UVD_VCPU_CNTL, 0x0);
+
+ /* Unstall UMC and register bus */
+ WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
+ WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
+}
+
+/**
+ * uvd_v1_0_ring_test - register write test
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Test if we can successfully write to the context register
+ */
+int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ uint32_t tmp = 0;
+ unsigned i;
+ int r;
+
+ WREG32(UVD_CONTEXT_ID, 0xCAFEDEAD);
+ r = radeon_ring_lock(rdev, ring, 3);
+ if (r) {
+ DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n",
+ ring->idx, r);
+ return r;
+ }
+ radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0));
+ radeon_ring_write(ring, 0xDEADBEEF);
+ radeon_ring_unlock_commit(rdev, ring, false);
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ tmp = RREG32(UVD_CONTEXT_ID);
+ if (tmp == 0xDEADBEEF)
+ break;
+ DRM_UDELAY(1);
+ }
+
+ if (i < rdev->usec_timeout) {
+ DRM_INFO("ring test on %d succeeded in %d usecs\n",
+ ring->idx, i);
+ } else {
+ DRM_ERROR("radeon: ring %d test failed (0x%08X)\n",
+ ring->idx, tmp);
+ r = -EINVAL;
+ }
+ return r;
+}
+
+/**
+ * uvd_v1_0_semaphore_emit - emit semaphore command
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ * @semaphore: semaphore to emit commands for
+ * @emit_wait: true if we should emit a wait command
+ *
+ * Emit a semaphore command (either wait or signal) to the UVD ring.
+ */
+bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
+ struct radeon_ring *ring,
+ struct radeon_semaphore *semaphore,
+ bool emit_wait)
+{
+ /* disable semaphores for UVD V1 hardware */
+ return false;
+}
+
+/**
+ * uvd_v1_0_ib_execute - execute indirect buffer
+ *
+ * @rdev: radeon_device pointer
+ * @ib: indirect buffer to execute
+ *
+ * Write ring commands to execute the indirect buffer
+ */
+void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
+{
+ struct radeon_ring *ring = &rdev->ring[ib->ring];
+
+ radeon_ring_write(ring, PACKET0(UVD_RBC_IB_BASE, 0));
+ radeon_ring_write(ring, ib->gpu_addr);
+ radeon_ring_write(ring, PACKET0(UVD_RBC_IB_SIZE, 0));
+ radeon_ring_write(ring, ib->length_dw);
+}
+
+/**
+ * uvd_v1_0_ib_test - test ib execution
+ *
+ * @rdev: radeon_device pointer
+ * @ring: radeon_ring pointer
+ *
+ * Test if we can successfully execute an IB
+ */
+int uvd_v1_0_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+ struct radeon_fence *fence = NULL;
+ int r;
+
+ if (rdev->family < CHIP_RV740)
+ r = radeon_set_uvd_clocks(rdev, 10000, 10000);
+ else
+ r = radeon_set_uvd_clocks(rdev, 53300, 40000);
+ if (r) {
+ DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r);
+ return r;
+ }
+
+ r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL);
+ if (r) {
+ DRM_ERROR("radeon: failed to get create msg (%d).\n", r);
+ goto error;
+ }
+
+ r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, &fence);
+ if (r) {
+ DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);
+ goto error;
+ }
+
+ r = radeon_fence_wait(fence, false);
+ if (r) {
+ DRM_ERROR("radeon: fence wait failed (%d).\n", r);
+ goto error;
+ }
+ DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
+error:
+ radeon_fence_unref(&fence);
+ radeon_set_uvd_clocks(rdev, 0, 0);
+ return r;
+}
Code Review / kvmfornfv.git / blobdiff