From: Leo Liu <leo.liu@amd.com>
Date: Wed, 21 Dec 2016 13:21:52 -0500
Subject: drm/amdgpu: add initial vcn support and decode tests
Git-commit: 95d0906f8506550a7c4a59c770732e7de912cffc
Patch-mainline: v4.13-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
VCN is the new media block on Raven. Add core support
and the ring and ib tests for decode.
Signed-off-by: Leo Liu <leo.liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdgpu/Makefile | 4
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 42 ++-
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 425 ++++++++++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h | 35 ++
4 files changed, 501 insertions(+), 5 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -93,6 +93,10 @@ amdgpu-y += \
vce_v3_0.o \
vce_v4_0.o
+# add VCN block
+amdgpu-y += \
+ amdgpu_vcn.o
+
# add amdkfd interfaces
amdgpu-y += \
amdgpu_amdkfd.o \
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1181,6 +1181,31 @@ void amdgpu_wb_free_64bit(struct amdgpu_
void amdgpu_get_pcie_info(struct amdgpu_device *adev);
/*
+ * VCN
+ */
+#define AMDGPU_VCN_STACK_SIZE (200*1024)
+#define AMDGPU_VCN_HEAP_SIZE (256*1024)
+#define AMDGPU_VCN_SESSION_SIZE (50*1024)
+#define AMDGPU_VCN_FIRMWARE_OFFSET 256
+#define AMDGPU_VCN_MAX_ENC_RINGS 3
+
+struct amdgpu_vcn {
+ struct amdgpu_bo *vcpu_bo;
+ void *cpu_addr;
+ uint64_t gpu_addr;
+ unsigned fw_version;
+ void *saved_bo;
+ struct delayed_work idle_work;
+ const struct firmware *fw; /* VCN firmware */
+ struct amdgpu_ring ring_dec;
+ struct amdgpu_ring ring_enc[AMDGPU_VCN_MAX_ENC_RINGS];
+ struct amdgpu_irq_src irq;
+ struct amd_sched_entity entity_dec;
+ struct amd_sched_entity entity_enc;
+ uint32_t srbm_soft_reset;
+};
+
+/*
* SDMA
*/
struct amdgpu_sdma_instance {
@@ -1572,11 +1597,18 @@ struct amdgpu_device {
/* sdma */
struct amdgpu_sdma sdma;
- /* uvd */
- struct amdgpu_uvd uvd;
-
- /* vce */
- struct amdgpu_vce vce;
+ union {
+ struct {
+ /* uvd */
+ struct amdgpu_uvd uvd;
+
+ /* vce */
+ struct amdgpu_vce vce;
+ };
+
+ /* vcn */
+ struct amdgpu_vcn vcn;
+ };
/* firmwares */
struct amdgpu_firmware firmware;
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -0,0 +1,425 @@
+/*
+ * Copyright 2016 Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <drm/drmP.h>
+#include <drm/drm.h>
+
+#include "amdgpu.h"
+#include "amdgpu_pm.h"
+#include "amdgpu_vcn.h"
+#include "soc15d.h"
+#include "soc15_common.h"
+
+#include "vega10/soc15ip.h"
+#include "raven1/VCN/vcn_1_0_offset.h"
+
+/* 1 second timeout */
+#define VCN_IDLE_TIMEOUT msecs_to_jiffies(1000)
+
+/* Firmware Names */
+#define FIRMWARE_RAVEN "amdgpu/raven_vcn.bin"
+
+MODULE_FIRMWARE(FIRMWARE_RAVEN);
+
+static void amdgpu_vcn_idle_work_handler(struct work_struct *work);
+
+int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
+{
+ struct amdgpu_ring *ring;
+ struct amd_sched_rq *rq;
+ unsigned long bo_size;
+ const char *fw_name;
+ const struct common_firmware_header *hdr;
+ unsigned version_major, version_minor, family_id;
+ int r;
+
+ INIT_DELAYED_WORK(&adev->vcn.idle_work, amdgpu_vcn_idle_work_handler);
+
+ switch (adev->asic_type) {
+ case CHIP_RAVEN:
+ fw_name = FIRMWARE_RAVEN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ r = request_firmware(&adev->vcn.fw, fw_name, adev->dev);
+ if (r) {
+ dev_err(adev->dev, "amdgpu_vcn: Can't load firmware \"%s\"\n",
+ fw_name);
+ return r;
+ }
+
+ r = amdgpu_ucode_validate(adev->vcn.fw);
+ if (r) {
+ dev_err(adev->dev, "amdgpu_vcn: Can't validate firmware \"%s\"\n",
+ fw_name);
+ release_firmware(adev->vcn.fw);
+ adev->vcn.fw = NULL;
+ return r;
+ }
+
+ hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
+ family_id = le32_to_cpu(hdr->ucode_version) & 0xff;
+ version_major = (le32_to_cpu(hdr->ucode_version) >> 24) & 0xff;
+ version_minor = (le32_to_cpu(hdr->ucode_version) >> 8) & 0xff;
+ DRM_INFO("Found VCN firmware Version: %hu.%hu Family ID: %hu\n",
+ version_major, version_minor, family_id);
+
+
+ bo_size = AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(hdr->ucode_size_bytes) + 8)
+ + AMDGPU_VCN_STACK_SIZE + AMDGPU_VCN_HEAP_SIZE
+ + AMDGPU_VCN_SESSION_SIZE * 40;
+ r = amdgpu_bo_create_kernel(adev, bo_size, PAGE_SIZE,
+ AMDGPU_GEM_DOMAIN_VRAM, &adev->vcn.vcpu_bo,
+ &adev->vcn.gpu_addr, &adev->vcn.cpu_addr);
+ if (r) {
+ dev_err(adev->dev, "(%d) failed to allocate vcn bo\n", r);
+ return r;
+ }
+
+ ring = &adev->vcn.ring_dec;
+ rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_NORMAL];
+ r = amd_sched_entity_init(&ring->sched, &adev->vcn.entity_dec,
+ rq, amdgpu_sched_jobs);
+ if (r != 0) {
+ DRM_ERROR("Failed setting up VCN dec run queue.\n");
+ return r;
+ }
+
+ return 0;
+}
+
+int amdgpu_vcn_sw_fini(struct amdgpu_device *adev)
+{
+ kfree(adev->vcn.saved_bo);
+
+ amd_sched_entity_fini(&adev->vcn.ring_dec.sched, &adev->vcn.entity_dec);
+
+ amdgpu_bo_free_kernel(&adev->vcn.vcpu_bo,
+ &adev->vcn.gpu_addr,
+ (void **)&adev->vcn.cpu_addr);
+
+ amdgpu_ring_fini(&adev->vcn.ring_dec);
+
+ release_firmware(adev->vcn.fw);
+
+ return 0;
+}
+
+int amdgpu_vcn_suspend(struct amdgpu_device *adev)
+{
+ unsigned size;
+ void *ptr;
+
+ if (adev->vcn.vcpu_bo == NULL)
+ return 0;
+
+ cancel_delayed_work_sync(&adev->vcn.idle_work);
+
+ size = amdgpu_bo_size(adev->vcn.vcpu_bo);
+ ptr = adev->vcn.cpu_addr;
+
+ adev->vcn.saved_bo = kmalloc(size, GFP_KERNEL);
+ if (!adev->vcn.saved_bo)
+ return -ENOMEM;
+
+ memcpy_fromio(adev->vcn.saved_bo, ptr, size);
+
+ return 0;
+}
+
+int amdgpu_vcn_resume(struct amdgpu_device *adev)
+{
+ unsigned size;
+ void *ptr;
+
+ if (adev->vcn.vcpu_bo == NULL)
+ return -EINVAL;
+
+ size = amdgpu_bo_size(adev->vcn.vcpu_bo);
+ ptr = adev->vcn.cpu_addr;
+
+ if (adev->vcn.saved_bo != NULL) {
+ memcpy_toio(ptr, adev->vcn.saved_bo, size);
+ kfree(adev->vcn.saved_bo);
+ adev->vcn.saved_bo = NULL;
+ } else {
+ const struct common_firmware_header *hdr;
+ unsigned offset;
+
+ hdr = (const struct common_firmware_header *)adev->vcn.fw->data;
+ offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
+ memcpy_toio(adev->vcn.cpu_addr, adev->vcn.fw->data + offset,
+ le32_to_cpu(hdr->ucode_size_bytes));
+ size -= le32_to_cpu(hdr->ucode_size_bytes);
+ ptr += le32_to_cpu(hdr->ucode_size_bytes);
+ memset_io(ptr, 0, size);
+ }
+
+ return 0;
+}
+
+static int amdgpu_vcn_dec_send_msg(struct amdgpu_ring *ring, struct amdgpu_bo *bo,
+ bool direct, struct dma_fence **fence)
+{
+ struct ttm_validate_buffer tv;
+ struct ww_acquire_ctx ticket;
+ struct list_head head;
+ struct amdgpu_job *job;
+ struct amdgpu_ib *ib;
+ struct dma_fence *f = NULL;
+ struct amdgpu_device *adev = ring->adev;
+ uint64_t addr;
+ int i, r;
+
+ memset(&tv, 0, sizeof(tv));
+ tv.bo = &bo->tbo;
+
+ INIT_LIST_HEAD(&head);
+ list_add(&tv.head, &head);
+
+ r = ttm_eu_reserve_buffers(&ticket, &head, true, NULL);
+ if (r)
+ return r;
+
+ r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
+ if (r)
+ goto err;
+
+ r = amdgpu_job_alloc_with_ib(adev, 64, &job);
+ if (r)
+ goto err;
+
+ ib = &job->ibs[0];
+ addr = amdgpu_bo_gpu_offset(bo);
+ ib->ptr[0] = PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA0), 0);
+ ib->ptr[1] = addr;
+ ib->ptr[2] = PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_DATA1), 0);
+ ib->ptr[3] = addr >> 32;
+ ib->ptr[4] = PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_GPCOM_VCPU_CMD), 0);
+ ib->ptr[5] = 0;
+ for (i = 6; i < 16; i += 2) {
+ ib->ptr[i] = PACKET0(SOC15_REG_OFFSET(UVD, 0, mmUVD_NO_OP), 0);
+ ib->ptr[i+1] = 0;
+ }
+ ib->length_dw = 16;
+
+ if (direct) {
+ r = amdgpu_ib_schedule(ring, 1, ib, NULL, &f);
+ job->fence = dma_fence_get(f);
+ if (r)
+ goto err_free;
+
+ amdgpu_job_free(job);
+ } else {
+ r = amdgpu_job_submit(job, ring, &adev->vcn.entity_dec,
+ AMDGPU_FENCE_OWNER_UNDEFINED, &f);
+ if (r)
+ goto err_free;
+ }
+
+ ttm_eu_fence_buffer_objects(&ticket, &head, f);
+
+ if (fence)
+ *fence = dma_fence_get(f);
+ amdgpu_bo_unref(&bo);
+ dma_fence_put(f);
+
+ return 0;
+
+err_free:
+ amdgpu_job_free(job);
+
+err:
+ ttm_eu_backoff_reservation(&ticket, &head);
+ return r;
+}
+
+static int amdgpu_vcn_dec_get_create_msg(struct amdgpu_ring *ring, uint32_t handle,
+ struct dma_fence **fence)
+{
+ struct amdgpu_device *adev = ring->adev;
+ struct amdgpu_bo *bo;
+ uint32_t *msg;
+ int r, i;
+
+ r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
+ AMDGPU_GEM_DOMAIN_VRAM,
+ AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
+ AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
+ NULL, NULL, &bo);
+ if (r)
+ return r;
+
+ r = amdgpu_bo_reserve(bo, false);
+ if (r) {
+ amdgpu_bo_unref(&bo);
+ return r;
+ }
+
+ r = amdgpu_bo_kmap(bo, (void **)&msg);
+ if (r) {
+ amdgpu_bo_unreserve(bo);
+ amdgpu_bo_unref(&bo);
+ return r;
+ }
+
+ /* stitch together an vcn create msg */
+ msg[0] = cpu_to_le32(0x00000de4);
+ msg[1] = cpu_to_le32(0x00000000);
+ msg[2] = cpu_to_le32(handle);
+ msg[3] = cpu_to_le32(0x00000000);
+ msg[4] = cpu_to_le32(0x00000000);
+ msg[5] = cpu_to_le32(0x00000000);
+ msg[6] = cpu_to_le32(0x00000000);
+ msg[7] = cpu_to_le32(0x00000780);
+ msg[8] = cpu_to_le32(0x00000440);
+ msg[9] = cpu_to_le32(0x00000000);
+ msg[10] = cpu_to_le32(0x01b37000);
+ for (i = 11; i < 1024; ++i)
+ msg[i] = cpu_to_le32(0x0);
+
+ amdgpu_bo_kunmap(bo);
+ amdgpu_bo_unreserve(bo);
+
+ return amdgpu_vcn_dec_send_msg(ring, bo, true, fence);
+}
+
+static int amdgpu_vcn_dec_get_destroy_msg(struct amdgpu_ring *ring, uint32_t handle,
+ bool direct, struct dma_fence **fence)
+{
+ struct amdgpu_device *adev = ring->adev;
+ struct amdgpu_bo *bo;
+ uint32_t *msg;
+ int r, i;
+
+ r = amdgpu_bo_create(adev, 1024, PAGE_SIZE, true,
+ AMDGPU_GEM_DOMAIN_VRAM,
+ AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
+ AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS,
+ NULL, NULL, &bo);
+ if (r)
+ return r;
+
+ r = amdgpu_bo_reserve(bo, false);
+ if (r) {
+ amdgpu_bo_unref(&bo);
+ return r;
+ }
+
+ r = amdgpu_bo_kmap(bo, (void **)&msg);
+ if (r) {
+ amdgpu_bo_unreserve(bo);
+ amdgpu_bo_unref(&bo);
+ return r;
+ }
+
+ /* stitch together an vcn destroy msg */
+ msg[0] = cpu_to_le32(0x00000de4);
+ msg[1] = cpu_to_le32(0x00000002);
+ msg[2] = cpu_to_le32(handle);
+ msg[3] = cpu_to_le32(0x00000000);
+ for (i = 4; i < 1024; ++i)
+ msg[i] = cpu_to_le32(0x0);
+
+ amdgpu_bo_kunmap(bo);
+ amdgpu_bo_unreserve(bo);
+
+ return amdgpu_vcn_dec_send_msg(ring, bo, direct, fence);
+}
+
+static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
+{
+ struct amdgpu_device *adev =
+ container_of(work, struct amdgpu_device, vcn.idle_work.work);
+ unsigned fences = amdgpu_fence_count_emitted(&adev->vcn.ring_dec);
+
+ if (fences == 0) {
+ if (adev->pm.dpm_enabled) {
+ amdgpu_dpm_enable_uvd(adev, false);
+ } else {
+ amdgpu_asic_set_uvd_clocks(adev, 0, 0);
+ }
+ } else {
+ schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
+ }
+}
+
+void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
+{
+ struct amdgpu_device *adev = ring->adev;
+ bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
+
+ if (set_clocks) {
+ if (adev->pm.dpm_enabled) {
+ amdgpu_dpm_enable_uvd(adev, true);
+ } else {
+ amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
+ }
+ }
+}
+
+void amdgpu_vcn_ring_end_use(struct amdgpu_ring *ring)
+{
+ schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
+}
+
+int amdgpu_vcn_dec_ring_test_ib(struct amdgpu_ring *ring, long timeout)
+{
+ struct dma_fence *fence;
+ long r;
+
+ r = amdgpu_vcn_dec_get_create_msg(ring, 1, NULL);
+ if (r) {
+ DRM_ERROR("amdgpu: failed to get create msg (%ld).\n", r);
+ goto error;
+ }
+
+ r = amdgpu_vcn_dec_get_destroy_msg(ring, 1, true, &fence);
+ if (r) {
+ DRM_ERROR("amdgpu: failed to get destroy ib (%ld).\n", r);
+ goto error;
+ }
+
+ r = dma_fence_wait_timeout(fence, false, timeout);
+ if (r == 0) {
+ DRM_ERROR("amdgpu: IB test timed out.\n");
+ r = -ETIMEDOUT;
+ } else if (r < 0) {
+ DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
+ } else {
+ DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
+ r = 0;
+ }
+
+ dma_fence_put(fence);
+
+error:
+ return r;
+}
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2016 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.
+ *
+ */
+
+#ifndef __AMDGPU_VCN_H__
+#define __AMDGPU_VCN_H__
+
+int amdgpu_vcn_sw_init(struct amdgpu_device *adev);
+int amdgpu_vcn_sw_fini(struct amdgpu_device *adev);
+int amdgpu_vcn_suspend(struct amdgpu_device *adev);
+int amdgpu_vcn_resume(struct amdgpu_device *adev);
+void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring);
+void amdgpu_vcn_ring_end_use(struct amdgpu_ring *ring);
+int amdgpu_vcn_dec_ring_test_ib(struct amdgpu_ring *ring, long timeout);
+
+#endif