diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 1227 |
1 files changed, 1227 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c new file mode 100644 index 000000000000..69a70a0aaed9 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c @@ -0,0 +1,1227 @@ +/* + * Copyright 2019 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. + * + */ + +#include "amdgpu_mes.h" +#include "amdgpu.h" +#include "soc15_common.h" +#include "amdgpu_mes_ctx.h" + +#define AMDGPU_MES_MAX_NUM_OF_QUEUES_PER_PROCESS 1024 +#define AMDGPU_ONE_DOORBELL_SIZE 8 + +int amdgpu_mes_doorbell_process_slice(struct amdgpu_device *adev) +{ + return roundup(AMDGPU_ONE_DOORBELL_SIZE * + AMDGPU_MES_MAX_NUM_OF_QUEUES_PER_PROCESS, + PAGE_SIZE); +} + +int amdgpu_mes_alloc_process_doorbells(struct amdgpu_device *adev, + unsigned int *doorbell_index) +{ + int r = ida_simple_get(&adev->mes.doorbell_ida, 2, + adev->mes.max_doorbell_slices, + GFP_KERNEL); + if (r > 0) + *doorbell_index = r; + + return r; +} + +void amdgpu_mes_free_process_doorbells(struct amdgpu_device *adev, + unsigned int doorbell_index) +{ + if (doorbell_index) + ida_simple_remove(&adev->mes.doorbell_ida, doorbell_index); +} + +unsigned int amdgpu_mes_get_doorbell_dw_offset_in_bar( + struct amdgpu_device *adev, + uint32_t doorbell_index, + unsigned int doorbell_id) +{ + return ((doorbell_index * + amdgpu_mes_doorbell_process_slice(adev)) / sizeof(u32) + + doorbell_id * 2); +} + +static int amdgpu_mes_queue_doorbell_get(struct amdgpu_device *adev, + struct amdgpu_mes_process *process, + int ip_type, uint64_t *doorbell_index) +{ + unsigned int offset, found; + + if (ip_type == AMDGPU_RING_TYPE_SDMA) { + offset = adev->doorbell_index.sdma_engine[0]; + found = find_next_zero_bit(process->doorbell_bitmap, + AMDGPU_MES_MAX_NUM_OF_QUEUES_PER_PROCESS, + offset); + } else { + found = find_first_zero_bit(process->doorbell_bitmap, + AMDGPU_MES_MAX_NUM_OF_QUEUES_PER_PROCESS); + } + + if (found >= AMDGPU_MES_MAX_NUM_OF_QUEUES_PER_PROCESS) { + DRM_WARN("No doorbell available\n"); + return -ENOSPC; + } + + set_bit(found, process->doorbell_bitmap); + + *doorbell_index = amdgpu_mes_get_doorbell_dw_offset_in_bar(adev, + process->doorbell_index, found); + + return 0; +} + +static void amdgpu_mes_queue_doorbell_free(struct amdgpu_device *adev, + struct amdgpu_mes_process *process, + uint32_t doorbell_index) +{ + unsigned int old, doorbell_id; + + doorbell_id = doorbell_index - + (process->doorbell_index * + amdgpu_mes_doorbell_process_slice(adev)) / sizeof(u32); + doorbell_id /= 2; + + old = test_and_clear_bit(doorbell_id, process->doorbell_bitmap); + WARN_ON(!old); +} + +static int amdgpu_mes_doorbell_init(struct amdgpu_device *adev) +{ + size_t doorbell_start_offset; + size_t doorbell_aperture_size; + size_t doorbell_process_limit; + + doorbell_start_offset = (adev->doorbell_index.max_assignment+1) * sizeof(u32); + doorbell_start_offset = + roundup(doorbell_start_offset, + amdgpu_mes_doorbell_process_slice(adev)); + + doorbell_aperture_size = adev->doorbell.size; + doorbell_aperture_size = + rounddown(doorbell_aperture_size, + amdgpu_mes_doorbell_process_slice(adev)); + + if (doorbell_aperture_size > doorbell_start_offset) + doorbell_process_limit = + (doorbell_aperture_size - doorbell_start_offset) / + amdgpu_mes_doorbell_process_slice(adev); + else + return -ENOSPC; + + adev->mes.doorbell_id_offset = doorbell_start_offset / sizeof(u32); + adev->mes.max_doorbell_slices = doorbell_process_limit; + + DRM_INFO("max_doorbell_slices=%zu\n", doorbell_process_limit); + return 0; +} + +int amdgpu_mes_init(struct amdgpu_device *adev) +{ + int i, r; + + adev->mes.adev = adev; + + idr_init(&adev->mes.pasid_idr); + idr_init(&adev->mes.gang_id_idr); + idr_init(&adev->mes.queue_id_idr); + ida_init(&adev->mes.doorbell_ida); + spin_lock_init(&adev->mes.queue_id_lock); + mutex_init(&adev->mes.mutex_hidden); + + adev->mes.total_max_queue = AMDGPU_FENCE_MES_QUEUE_ID_MASK; + adev->mes.vmid_mask_mmhub = 0xffffff00; + adev->mes.vmid_mask_gfxhub = 0xffffff00; + + for (i = 0; i < AMDGPU_MES_MAX_COMPUTE_PIPES; i++) { + /* use only 1st MEC pipes */ + if (i >= 4) + continue; + adev->mes.compute_hqd_mask[i] = 0xc; + } + + for (i = 0; i < AMDGPU_MES_MAX_GFX_PIPES; i++) + adev->mes.gfx_hqd_mask[i] = i ? 0 : 0xfffffffe; + + for (i = 0; i < AMDGPU_MES_MAX_SDMA_PIPES; i++) { + if (adev->ip_versions[SDMA0_HWIP][0] < IP_VERSION(6, 0, 0)) + adev->mes.sdma_hqd_mask[i] = i ? 0 : 0x3fc; + else + adev->mes.sdma_hqd_mask[i] = 0xfc; + } + + for (i = 0; i < AMDGPU_MES_PRIORITY_NUM_LEVELS; i++) + adev->mes.agreegated_doorbells[i] = 0xffffffff; + + r = amdgpu_device_wb_get(adev, &adev->mes.sch_ctx_offs); + if (r) { + dev_err(adev->dev, + "(%d) ring trail_fence_offs wb alloc failed\n", r); + goto error_ids; + } + adev->mes.sch_ctx_gpu_addr = + adev->wb.gpu_addr + (adev->mes.sch_ctx_offs * 4); + adev->mes.sch_ctx_ptr = + (uint64_t *)&adev->wb.wb[adev->mes.sch_ctx_offs]; + + r = amdgpu_device_wb_get(adev, &adev->mes.query_status_fence_offs); + if (r) { + dev_err(adev->dev, + "(%d) query_status_fence_offs wb alloc failed\n", r); + return r; + } + adev->mes.query_status_fence_gpu_addr = + adev->wb.gpu_addr + (adev->mes.query_status_fence_offs * 4); + adev->mes.query_status_fence_ptr = + (uint64_t *)&adev->wb.wb[adev->mes.query_status_fence_offs]; + + r = amdgpu_mes_doorbell_init(adev); + if (r) + goto error; + + return 0; + +error: + amdgpu_device_wb_free(adev, adev->mes.sch_ctx_offs); +error_ids: + idr_destroy(&adev->mes.pasid_idr); + idr_destroy(&adev->mes.gang_id_idr); + idr_destroy(&adev->mes.queue_id_idr); + ida_destroy(&adev->mes.doorbell_ida); + mutex_destroy(&adev->mes.mutex_hidden); + return r; +} + +void amdgpu_mes_fini(struct amdgpu_device *adev) +{ + amdgpu_device_wb_free(adev, adev->mes.sch_ctx_offs); + + idr_destroy(&adev->mes.pasid_idr); + idr_destroy(&adev->mes.gang_id_idr); + idr_destroy(&adev->mes.queue_id_idr); + ida_destroy(&adev->mes.doorbell_ida); + mutex_destroy(&adev->mes.mutex_hidden); +} + +static void amdgpu_mes_queue_free_mqd(struct amdgpu_mes_queue *q) +{ + amdgpu_bo_free_kernel(&q->mqd_obj, + &q->mqd_gpu_addr, + &q->mqd_cpu_ptr); +} + +int amdgpu_mes_create_process(struct amdgpu_device *adev, int pasid, + struct amdgpu_vm *vm) +{ + struct amdgpu_mes_process *process; + int r; + + /* allocate the mes process buffer */ + process = kzalloc(sizeof(struct amdgpu_mes_process), GFP_KERNEL); + if (!process) { + DRM_ERROR("no more memory to create mes process\n"); + return -ENOMEM; + } + + process->doorbell_bitmap = + kzalloc(DIV_ROUND_UP(AMDGPU_MES_MAX_NUM_OF_QUEUES_PER_PROCESS, + BITS_PER_BYTE), GFP_KERNEL); + if (!process->doorbell_bitmap) { + DRM_ERROR("failed to allocate doorbell bitmap\n"); + kfree(process); + return -ENOMEM; + } + + /* allocate the process context bo and map it */ + r = amdgpu_bo_create_kernel(adev, AMDGPU_MES_PROC_CTX_SIZE, PAGE_SIZE, + AMDGPU_GEM_DOMAIN_GTT, + &process->proc_ctx_bo, + &process->proc_ctx_gpu_addr, + &process->proc_ctx_cpu_ptr); + if (r) { + DRM_ERROR("failed to allocate process context bo\n"); + goto clean_up_memory; + } + memset(process->proc_ctx_cpu_ptr, 0, AMDGPU_MES_PROC_CTX_SIZE); + + /* + * Avoid taking any other locks under MES lock to avoid circular + * lock dependencies. + */ + amdgpu_mes_lock(&adev->mes); + + /* add the mes process to idr list */ + r = idr_alloc(&adev->mes.pasid_idr, process, pasid, pasid + 1, + GFP_KERNEL); + if (r < 0) { + DRM_ERROR("failed to lock pasid=%d\n", pasid); + goto clean_up_ctx; + } + + /* allocate the starting doorbell index of the process */ + r = amdgpu_mes_alloc_process_doorbells(adev, &process->doorbell_index); + if (r < 0) { + DRM_ERROR("failed to allocate doorbell for process\n"); + goto clean_up_pasid; + } + + DRM_DEBUG("process doorbell index = %d\n", process->doorbell_index); + + INIT_LIST_HEAD(&process->gang_list); + process->vm = vm; + process->pasid = pasid; + process->process_quantum = adev->mes.default_process_quantum; + process->pd_gpu_addr = amdgpu_bo_gpu_offset(vm->root.bo); + + amdgpu_mes_unlock(&adev->mes); + return 0; + +clean_up_pasid: + idr_remove(&adev->mes.pasid_idr, pasid); + amdgpu_mes_unlock(&adev->mes); +clean_up_ctx: + amdgpu_bo_free_kernel(&process->proc_ctx_bo, + &process->proc_ctx_gpu_addr, + &process->proc_ctx_cpu_ptr); +clean_up_memory: + kfree(process->doorbell_bitmap); + kfree(process); + return r; +} + +void amdgpu_mes_destroy_process(struct amdgpu_device *adev, int pasid) +{ + struct amdgpu_mes_process *process; + struct amdgpu_mes_gang *gang, *tmp1; + struct amdgpu_mes_queue *queue, *tmp2; + struct mes_remove_queue_input queue_input; + unsigned long flags; + int r; + + /* + * Avoid taking any other locks under MES lock to avoid circular + * lock dependencies. + */ + amdgpu_mes_lock(&adev->mes); + + process = idr_find(&adev->mes.pasid_idr, pasid); + if (!process) { + DRM_WARN("pasid %d doesn't exist\n", pasid); + amdgpu_mes_unlock(&adev->mes); + return; + } + + /* Remove all queues from hardware */ + list_for_each_entry_safe(gang, tmp1, &process->gang_list, list) { + list_for_each_entry_safe(queue, tmp2, &gang->queue_list, list) { + spin_lock_irqsave(&adev->mes.queue_id_lock, flags); + idr_remove(&adev->mes.queue_id_idr, queue->queue_id); + spin_unlock_irqrestore(&adev->mes.queue_id_lock, flags); + + queue_input.doorbell_offset = queue->doorbell_off; + queue_input.gang_context_addr = gang->gang_ctx_gpu_addr; + + r = adev->mes.funcs->remove_hw_queue(&adev->mes, + &queue_input); + if (r) + DRM_WARN("failed to remove hardware queue\n"); + } + + idr_remove(&adev->mes.gang_id_idr, gang->gang_id); + } + + amdgpu_mes_free_process_doorbells(adev, process->doorbell_index); + idr_remove(&adev->mes.pasid_idr, pasid); + amdgpu_mes_unlock(&adev->mes); + + /* free all memory allocated by the process */ + list_for_each_entry_safe(gang, tmp1, &process->gang_list, list) { + /* free all queues in the gang */ + list_for_each_entry_safe(queue, tmp2, &gang->queue_list, list) { + amdgpu_mes_queue_free_mqd(queue); + list_del(&queue->list); + kfree(queue); + } + amdgpu_bo_free_kernel(&gang->gang_ctx_bo, + &gang->gang_ctx_gpu_addr, + &gang->gang_ctx_cpu_ptr); + list_del(&gang->list); + kfree(gang); + + } + amdgpu_bo_free_kernel(&process->proc_ctx_bo, + &process->proc_ctx_gpu_addr, + &process->proc_ctx_cpu_ptr); + kfree(process->doorbell_bitmap); + kfree(process); +} + +int amdgpu_mes_add_gang(struct amdgpu_device *adev, int pasid, + struct amdgpu_mes_gang_properties *gprops, + int *gang_id) +{ + struct amdgpu_mes_process *process; + struct amdgpu_mes_gang *gang; + int r; + + /* allocate the mes gang buffer */ + gang = kzalloc(sizeof(struct amdgpu_mes_gang), GFP_KERNEL); + if (!gang) { + return -ENOMEM; + } + + /* allocate the gang context bo and map it to cpu space */ + r = amdgpu_bo_create_kernel(adev, AMDGPU_MES_GANG_CTX_SIZE, PAGE_SIZE, + AMDGPU_GEM_DOMAIN_GTT, + &gang->gang_ctx_bo, + &gang->gang_ctx_gpu_addr, + &gang->gang_ctx_cpu_ptr); + if (r) { + DRM_ERROR("failed to allocate process context bo\n"); + goto clean_up_mem; + } + memset(gang->gang_ctx_cpu_ptr, 0, AMDGPU_MES_GANG_CTX_SIZE); + + /* + * Avoid taking any other locks under MES lock to avoid circular + * lock dependencies. + */ + amdgpu_mes_lock(&adev->mes); + + process = idr_find(&adev->mes.pasid_idr, pasid); + if (!process) { + DRM_ERROR("pasid %d doesn't exist\n", pasid); + r = -EINVAL; + goto clean_up_ctx; + } + + /* add the mes gang to idr list */ + r = idr_alloc(&adev->mes.gang_id_idr, gang, 1, 0, + GFP_KERNEL); + if (r < 0) { + DRM_ERROR("failed to allocate idr for gang\n"); + goto clean_up_ctx; + } + + gang->gang_id = r; + *gang_id = r; + + INIT_LIST_HEAD(&gang->queue_list); + gang->process = process; + gang->priority = gprops->priority; + gang->gang_quantum = gprops->gang_quantum ? + gprops->gang_quantum : adev->mes.default_gang_quantum; + gang->global_priority_level = gprops->global_priority_level; + gang->inprocess_gang_priority = gprops->inprocess_gang_priority; + list_add_tail(&gang->list, &process->gang_list); + + amdgpu_mes_unlock(&adev->mes); + return 0; + +clean_up_ctx: + amdgpu_mes_unlock(&adev->mes); + amdgpu_bo_free_kernel(&gang->gang_ctx_bo, + &gang->gang_ctx_gpu_addr, + &gang->gang_ctx_cpu_ptr); +clean_up_mem: + kfree(gang); + return r; +} + +int amdgpu_mes_remove_gang(struct amdgpu_device *adev, int gang_id) +{ + struct amdgpu_mes_gang *gang; + + /* + * Avoid taking any other locks under MES lock to avoid circular + * lock dependencies. + */ + amdgpu_mes_lock(&adev->mes); + + gang = idr_find(&adev->mes.gang_id_idr, gang_id); + if (!gang) { + DRM_ERROR("gang id %d doesn't exist\n", gang_id); + amdgpu_mes_unlock(&adev->mes); + return -EINVAL; + } + + if (!list_empty(&gang->queue_list)) { + DRM_ERROR("queue list is not empty\n"); + amdgpu_mes_unlock(&adev->mes); + return -EBUSY; + } + + idr_remove(&adev->mes.gang_id_idr, gang->gang_id); + list_del(&gang->list); + amdgpu_mes_unlock(&adev->mes); + + amdgpu_bo_free_kernel(&gang->gang_ctx_bo, + &gang->gang_ctx_gpu_addr, + &gang->gang_ctx_cpu_ptr); + + kfree(gang); + + return 0; +} + +int amdgpu_mes_suspend(struct amdgpu_device *adev) +{ + struct idr *idp; + struct amdgpu_mes_process *process; + struct amdgpu_mes_gang *gang; + struct mes_suspend_gang_input input; + int r, pasid; + + /* + * Avoid taking any other locks under MES lock to avoid circular + * lock dependencies. + */ + amdgpu_mes_lock(&adev->mes); + + idp = &adev->mes.pasid_idr; + + idr_for_each_entry(idp, process, pasid) { + list_for_each_entry(gang, &process->gang_list, list) { + r = adev->mes.funcs->suspend_gang(&adev->mes, &input); + if (r) + DRM_ERROR("failed to suspend pasid %d gangid %d", + pasid, gang->gang_id); + } + } + + amdgpu_mes_unlock(&adev->mes); + return 0; +} + +int amdgpu_mes_resume(struct amdgpu_device *adev) +{ + struct idr *idp; + struct amdgpu_mes_process *process; + struct amdgpu_mes_gang *gang; + struct mes_resume_gang_input input; + int r, pasid; + + /* + * Avoid taking any other locks under MES lock to avoid circular + * lock dependencies. + */ + amdgpu_mes_lock(&adev->mes); + + idp = &adev->mes.pasid_idr; + + idr_for_each_entry(idp, process, pasid) { + list_for_each_entry(gang, &process->gang_list, list) { + r = adev->mes.funcs->resume_gang(&adev->mes, &input); + if (r) + DRM_ERROR("failed to resume pasid %d gangid %d", + pasid, gang->gang_id); + } + } + + amdgpu_mes_unlock(&adev->mes); + return 0; +} + +static int amdgpu_mes_queue_alloc_mqd(struct amdgpu_device *adev, + struct amdgpu_mes_queue *q, + struct amdgpu_mes_queue_properties *p) +{ + struct amdgpu_mqd *mqd_mgr = &adev->mqds[p->queue_type]; + u32 mqd_size = mqd_mgr->mqd_size; + int r; + + r = amdgpu_bo_create_kernel(adev, mqd_size, PAGE_SIZE, + AMDGPU_GEM_DOMAIN_GTT, + &q->mqd_obj, + &q->mqd_gpu_addr, &q->mqd_cpu_ptr); + if (r) { + dev_warn(adev->dev, "failed to create queue mqd bo (%d)", r); + return r; + } + memset(q->mqd_cpu_ptr, 0, mqd_size); + + r = amdgpu_bo_reserve(q->mqd_obj, false); + if (unlikely(r != 0)) + goto clean_up; + + return 0; + +clean_up: + amdgpu_bo_free_kernel(&q->mqd_obj, + &q->mqd_gpu_addr, + &q->mqd_cpu_ptr); + return r; +} + +static void amdgpu_mes_queue_init_mqd(struct amdgpu_device *adev, + struct amdgpu_mes_queue *q, + struct amdgpu_mes_queue_properties *p) +{ + struct amdgpu_mqd *mqd_mgr = &adev->mqds[p->queue_type]; + struct amdgpu_mqd_prop mqd_prop = {0}; + + mqd_prop.mqd_gpu_addr = q->mqd_gpu_addr; + mqd_prop.hqd_base_gpu_addr = p->hqd_base_gpu_addr; + mqd_prop.rptr_gpu_addr = p->rptr_gpu_addr; + mqd_prop.wptr_gpu_addr = p->wptr_gpu_addr; + mqd_prop.queue_size = p->queue_size; + mqd_prop.use_doorbell = true; + mqd_prop.doorbell_index = p->doorbell_off; + mqd_prop.eop_gpu_addr = p->eop_gpu_addr; + mqd_prop.hqd_pipe_priority = p->hqd_pipe_priority; + mqd_prop.hqd_queue_priority = p->hqd_queue_priority; + mqd_prop.hqd_active = false; + + mqd_mgr->init_mqd(adev, q->mqd_cpu_ptr, &mqd_prop); + + amdgpu_bo_unreserve(q->mqd_obj); +} + +int amdgpu_mes_add_hw_queue(struct amdgpu_device *adev, int gang_id, + struct amdgpu_mes_queue_properties *qprops, + int *queue_id) +{ + struct amdgpu_mes_queue *queue; + struct amdgpu_mes_gang *gang; + struct mes_add_queue_input queue_input; + unsigned long flags; + int r; + + /* allocate the mes queue buffer */ + queue = kzalloc(sizeof(struct amdgpu_mes_queue), GFP_KERNEL); + if (!queue) { + DRM_ERROR("Failed to allocate memory for queue\n"); + return -ENOMEM; + } + + /* Allocate the queue mqd */ + r = amdgpu_mes_queue_alloc_mqd(adev, queue, qprops); + if (r) + goto clean_up_memory; + + /* + * Avoid taking any other locks under MES lock to avoid circular + * lock dependencies. + */ + amdgpu_mes_lock(&adev->mes); + + gang = idr_find(&adev->mes.gang_id_idr, gang_id); + if (!gang) { + DRM_ERROR("gang id %d doesn't exist\n", gang_id); + r = -EINVAL; + goto clean_up_mqd; + } + + /* add the mes gang to idr list */ + spin_lock_irqsave(&adev->mes.queue_id_lock, flags); + r = idr_alloc(&adev->mes.queue_id_idr, queue, 1, 0, + GFP_ATOMIC); + if (r < 0) { + spin_unlock_irqrestore(&adev->mes.queue_id_lock, flags); + goto clean_up_mqd; + } + spin_unlock_irqrestore(&adev->mes.queue_id_lock, flags); + *queue_id = queue->queue_id = r; + + /* allocate a doorbell index for the queue */ + r = amdgpu_mes_queue_doorbell_get(adev, gang->process, + qprops->queue_type, + &qprops->doorbell_off); + if (r) + goto clean_up_queue_id; + + /* initialize the queue mqd */ + amdgpu_mes_queue_init_mqd(adev, queue, qprops); + + /* add hw queue to mes */ + queue_input.process_id = gang->process->pasid; + + queue_input.page_table_base_addr = + adev->vm_manager.vram_base_offset + gang->process->pd_gpu_addr - + adev->gmc.vram_start; + + queue_input.process_va_start = 0; + queue_input.process_va_end = + (adev->vm_manager.max_pfn - 1) << AMDGPU_GPU_PAGE_SHIFT; + queue_input.process_quantum = gang->process->process_quantum; + queue_input.process_context_addr = gang->process->proc_ctx_gpu_addr; + queue_input.gang_quantum = gang->gang_quantum; + queue_input.gang_context_addr = gang->gang_ctx_gpu_addr; + queue_input.inprocess_gang_priority = gang->inprocess_gang_priority; + queue_input.gang_global_priority_level = gang->global_priority_level; + queue_input.doorbell_offset = qprops->doorbell_off; + queue_input.mqd_addr = queue->mqd_gpu_addr; + queue_input.wptr_addr = qprops->wptr_gpu_addr; + queue_input.queue_type = qprops->queue_type; + queue_input.paging = qprops->paging; + + r = adev->mes.funcs->add_hw_queue(&adev->mes, &queue_input); + if (r) { + DRM_ERROR("failed to add hardware queue to MES, doorbell=0x%llx\n", + qprops->doorbell_off); + goto clean_up_doorbell; + } + + DRM_DEBUG("MES hw queue was added, pasid=%d, gang id=%d, " + "queue type=%d, doorbell=0x%llx\n", + gang->process->pasid, gang_id, qprops->queue_type, + qprops->doorbell_off); + + queue->ring = qprops->ring; + queue->doorbell_off = qprops->doorbell_off; + queue->wptr_gpu_addr = qprops->wptr_gpu_addr; + queue->queue_type = qprops->queue_type; + queue->paging = qprops->paging; + queue->gang = gang; + list_add_tail(&queue->list, &gang->queue_list); + + amdgpu_mes_unlock(&adev->mes); + return 0; + +clean_up_doorbell: + amdgpu_mes_queue_doorbell_free(adev, gang->process, + qprops->doorbell_off); +clean_up_queue_id: + spin_lock_irqsave(&adev->mes.queue_id_lock, flags); + idr_remove(&adev->mes.queue_id_idr, queue->queue_id); + spin_unlock_irqrestore(&adev->mes.queue_id_lock, flags); +clean_up_mqd: + amdgpu_mes_unlock(&adev->mes); + amdgpu_mes_queue_free_mqd(queue); +clean_up_memory: + kfree(queue); + return r; +} + +int amdgpu_mes_remove_hw_queue(struct amdgpu_device *adev, int queue_id) +{ + unsigned long flags; + struct amdgpu_mes_queue *queue; + struct amdgpu_mes_gang *gang; + struct mes_remove_queue_input queue_input; + int r; + + /* + * Avoid taking any other locks under MES lock to avoid circular + * lock dependencies. + */ + amdgpu_mes_lock(&adev->mes); + + /* remove the mes gang from idr list */ + spin_lock_irqsave(&adev->mes.queue_id_lock, flags); + + queue = idr_find(&adev->mes.queue_id_idr, queue_id); + if (!queue) { + spin_unlock_irqrestore(&adev->mes.queue_id_lock, flags); + amdgpu_mes_unlock(&adev->mes); + DRM_ERROR("queue id %d doesn't exist\n", queue_id); + return -EINVAL; + } + + idr_remove(&adev->mes.queue_id_idr, queue_id); + spin_unlock_irqrestore(&adev->mes.queue_id_lock, flags); + + DRM_DEBUG("try to remove queue, doorbell off = 0x%llx\n", + queue->doorbell_off); + + gang = queue->gang; + queue_input.doorbell_offset = queue->doorbell_off; + queue_input.gang_context_addr = gang->gang_ctx_gpu_addr; + + r = adev->mes.funcs->remove_hw_queue(&adev->mes, &queue_input); + if (r) + DRM_ERROR("failed to remove hardware queue, queue id = %d\n", + queue_id); + + list_del(&queue->list); + amdgpu_mes_queue_doorbell_free(adev, gang->process, + queue->doorbell_off); + amdgpu_mes_unlock(&adev->mes); + + amdgpu_mes_queue_free_mqd(queue); + kfree(queue); + return 0; +} + +int amdgpu_mes_unmap_legacy_queue(struct amdgpu_device *adev, + struct amdgpu_ring *ring, + enum amdgpu_unmap_queues_action action, + u64 gpu_addr, u64 seq) +{ + struct mes_unmap_legacy_queue_input queue_input; + int r; + + amdgpu_mes_lock(&adev->mes); + + queue_input.action = action; + queue_input.queue_type = ring->funcs->type; + queue_input.doorbell_offset = ring->doorbell_index; + queue_input.pipe_id = ring->pipe; + queue_input.queue_id = ring->queue; + queue_input.trail_fence_addr = gpu_addr; + queue_input.trail_fence_data = seq; + + r = adev->mes.funcs->unmap_legacy_queue(&adev->mes, &queue_input); + if (r) + DRM_ERROR("failed to unmap legacy queue\n"); + + amdgpu_mes_unlock(&adev->mes); + return r; +} + +static void +amdgpu_mes_ring_to_queue_props(struct amdgpu_device *adev, + struct amdgpu_ring *ring, + struct amdgpu_mes_queue_properties *props) +{ + props->queue_type = ring->funcs->type; + props->hqd_base_gpu_addr = ring->gpu_addr; + props->rptr_gpu_addr = ring->rptr_gpu_addr; + props->wptr_gpu_addr = ring->wptr_gpu_addr; + props->queue_size = ring->ring_size; + props->eop_gpu_addr = ring->eop_gpu_addr; + props->hqd_pipe_priority = AMDGPU_GFX_PIPE_PRIO_NORMAL; + props->hqd_queue_priority = AMDGPU_GFX_QUEUE_PRIORITY_MINIMUM; + props->paging = false; + props->ring = ring; +} + +#define DEFINE_AMDGPU_MES_CTX_GET_OFFS_ENG(_eng) \ +do { \ + if (id_offs < AMDGPU_MES_CTX_MAX_OFFS) \ + return offsetof(struct amdgpu_mes_ctx_meta_data, \ + _eng[ring->idx].slots[id_offs]); \ + else if (id_offs == AMDGPU_MES_CTX_RING_OFFS) \ + return offsetof(struct amdgpu_mes_ctx_meta_data, \ + _eng[ring->idx].ring); \ + else if (id_offs == AMDGPU_MES_CTX_IB_OFFS) \ + return offsetof(struct amdgpu_mes_ctx_meta_data, \ + _eng[ring->idx].ib); \ + else if (id_offs == AMDGPU_MES_CTX_PADDING_OFFS) \ + return offsetof(struct amdgpu_mes_ctx_meta_data, \ + _eng[ring->idx].padding); \ +} while(0) + +int amdgpu_mes_ctx_get_offs(struct amdgpu_ring *ring, unsigned int id_offs) +{ + switch (ring->funcs->type) { + case AMDGPU_RING_TYPE_GFX: + DEFINE_AMDGPU_MES_CTX_GET_OFFS_ENG(gfx); + break; + case AMDGPU_RING_TYPE_COMPUTE: + DEFINE_AMDGPU_MES_CTX_GET_OFFS_ENG(compute); + break; + case AMDGPU_RING_TYPE_SDMA: + DEFINE_AMDGPU_MES_CTX_GET_OFFS_ENG(sdma); + break; + default: + break; + } + + WARN_ON(1); + return -EINVAL; +} + +int amdgpu_mes_add_ring(struct amdgpu_device *adev, int gang_id, + int queue_type, int idx, + struct amdgpu_mes_ctx_data *ctx_data, + struct amdgpu_ring **out) +{ + struct amdgpu_ring *ring; + struct amdgpu_mes_gang *gang; + struct amdgpu_mes_queue_properties qprops = {0}; + int r, queue_id, pasid; + + /* + * Avoid taking any other locks under MES lock to avoid circular + * lock dependencies. + */ + amdgpu_mes_lock(&adev->mes); + gang = idr_find(&adev->mes.gang_id_idr, gang_id); + if (!gang) { + DRM_ERROR("gang id %d doesn't exist\n", gang_id); + amdgpu_mes_unlock(&adev->mes); + return -EINVAL; + } + pasid = gang->process->pasid; + + ring = kzalloc(sizeof(struct amdgpu_ring), GFP_KERNEL); + if (!ring) { + amdgpu_mes_unlock(&adev->mes); + return -ENOMEM; + } + + ring->ring_obj = NULL; + ring->use_doorbell = true; + ring->is_mes_queue = true; + ring->mes_ctx = ctx_data; + ring->idx = idx; + ring->no_scheduler = true; + + if (queue_type == AMDGPU_RING_TYPE_COMPUTE) { + int offset = offsetof(struct amdgpu_mes_ctx_meta_data, + compute[ring->idx].mec_hpd); + ring->eop_gpu_addr = + amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset); + } + + switch (queue_type) { + case AMDGPU_RING_TYPE_GFX: + ring->funcs = adev->gfx.gfx_ring[0].funcs; + break; + case AMDGPU_RING_TYPE_COMPUTE: + ring->funcs = adev->gfx.compute_ring[0].funcs; + break; + case AMDGPU_RING_TYPE_SDMA: + ring->funcs = adev->sdma.instance[0].ring.funcs; + break; + default: + BUG(); + } + + r = amdgpu_ring_init(adev, ring, 1024, NULL, 0, + AMDGPU_RING_PRIO_DEFAULT, NULL); + if (r) + goto clean_up_memory; + + amdgpu_mes_ring_to_queue_props(adev, ring, &qprops); + + dma_fence_wait(gang->process->vm->last_update, false); + dma_fence_wait(ctx_data->meta_data_va->last_pt_update, false); + amdgpu_mes_unlock(&adev->mes); + + r = amdgpu_mes_add_hw_queue(adev, gang_id, &qprops, &queue_id); + if (r) + goto clean_up_ring; + + ring->hw_queue_id = queue_id; + ring->doorbell_index = qprops.doorbell_off; + + if (queue_type == AMDGPU_RING_TYPE_GFX) + sprintf(ring->name, "gfx_%d.%d.%d", pasid, gang_id, queue_id); + else if (queue_type == AMDGPU_RING_TYPE_COMPUTE) + sprintf(ring->name, "compute_%d.%d.%d", pasid, gang_id, + queue_id); + else if (queue_type == AMDGPU_RING_TYPE_SDMA) + sprintf(ring->name, "sdma_%d.%d.%d", pasid, gang_id, + queue_id); + else + BUG(); + + *out = ring; + return 0; + +clean_up_ring: + amdgpu_ring_fini(ring); +clean_up_memory: + kfree(ring); + amdgpu_mes_unlock(&adev->mes); + return r; +} + +void amdgpu_mes_remove_ring(struct amdgpu_device *adev, + struct amdgpu_ring *ring) +{ + if (!ring) + return; + + amdgpu_mes_remove_hw_queue(adev, ring->hw_queue_id); + amdgpu_ring_fini(ring); + kfree(ring); +} + +int amdgpu_mes_ctx_alloc_meta_data(struct amdgpu_device *adev, + struct amdgpu_mes_ctx_data *ctx_data) +{ + int r; + + r = amdgpu_bo_create_kernel(adev, + sizeof(struct amdgpu_mes_ctx_meta_data), + PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT, + &ctx_data->meta_data_obj, NULL, + &ctx_data->meta_data_ptr); + if (!ctx_data->meta_data_obj) + return -ENOMEM; + + memset(ctx_data->meta_data_ptr, 0, + sizeof(struct amdgpu_mes_ctx_meta_data)); + + return 0; +} + +void amdgpu_mes_ctx_free_meta_data(struct amdgpu_mes_ctx_data *ctx_data) +{ + if (ctx_data->meta_data_obj) + amdgpu_bo_free_kernel(&ctx_data->meta_data_obj, NULL, NULL); +} + +int amdgpu_mes_ctx_map_meta_data(struct amdgpu_device *adev, + struct amdgpu_vm *vm, + struct amdgpu_mes_ctx_data *ctx_data) +{ + struct amdgpu_bo_va *bo_va; + struct ww_acquire_ctx ticket; + struct list_head list; + struct amdgpu_bo_list_entry pd; + struct ttm_validate_buffer csa_tv; + struct amdgpu_sync sync; + int r; + + amdgpu_sync_create(&sync); + INIT_LIST_HEAD(&list); + INIT_LIST_HEAD(&csa_tv.head); + + csa_tv.bo = &ctx_data->meta_data_obj->tbo; + csa_tv.num_shared = 1; + + list_add(&csa_tv.head, &list); + amdgpu_vm_get_pd_bo(vm, &list, &pd); + + r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL); + if (r) { + DRM_ERROR("failed to reserve meta data BO: err=%d\n", r); + return r; + } + + bo_va = amdgpu_vm_bo_add(adev, vm, ctx_data->meta_data_obj); + if (!bo_va) { + ttm_eu_backoff_reservation(&ticket, &list); + DRM_ERROR("failed to create bo_va for meta data BO\n"); + return -ENOMEM; + } + + r = amdgpu_vm_bo_map(adev, bo_va, ctx_data->meta_data_gpu_addr, 0, + sizeof(struct amdgpu_mes_ctx_meta_data), + AMDGPU_PTE_READABLE | AMDGPU_PTE_WRITEABLE | + AMDGPU_PTE_EXECUTABLE); + + if (r) { + DRM_ERROR("failed to do bo_map on meta data, err=%d\n", r); + goto error; + } + + r = amdgpu_vm_bo_update(adev, bo_va, false); + if (r) { + DRM_ERROR("failed to do vm_bo_update on meta data\n"); + goto error; + } + amdgpu_sync_fence(&sync, bo_va->last_pt_update); + + r = amdgpu_vm_update_pdes(adev, vm, false); + if (r) { + DRM_ERROR("failed to update pdes on meta data\n"); + goto error; + } + amdgpu_sync_fence(&sync, vm->last_update); + + amdgpu_sync_wait(&sync, false); + ttm_eu_backoff_reservation(&ticket, &list); + + amdgpu_sync_free(&sync); + ctx_data->meta_data_va = bo_va; + return 0; + +error: + amdgpu_vm_bo_del(adev, bo_va); + ttm_eu_backoff_reservation(&ticket, &list); + amdgpu_sync_free(&sync); + return r; +} + +static int amdgpu_mes_test_create_gang_and_queues(struct amdgpu_device *adev, + int pasid, int *gang_id, + int queue_type, int num_queue, + struct amdgpu_ring **added_rings, + struct amdgpu_mes_ctx_data *ctx_data) +{ + struct amdgpu_ring *ring; + struct amdgpu_mes_gang_properties gprops = {0}; + int r, j; + + /* create a gang for the process */ + gprops.priority = AMDGPU_MES_PRIORITY_LEVEL_NORMAL; + gprops.gang_quantum = adev->mes.default_gang_quantum; + gprops.inprocess_gang_priority = AMDGPU_MES_PRIORITY_LEVEL_NORMAL; + gprops.priority_level = AMDGPU_MES_PRIORITY_LEVEL_NORMAL; + gprops.global_priority_level = AMDGPU_MES_PRIORITY_LEVEL_NORMAL; + + r = amdgpu_mes_add_gang(adev, pasid, &gprops, gang_id); + if (r) { + DRM_ERROR("failed to add gang\n"); + return r; + } + + /* create queues for the gang */ + for (j = 0; j < num_queue; j++) { + r = amdgpu_mes_add_ring(adev, *gang_id, queue_type, j, + ctx_data, &ring); + if (r) { + DRM_ERROR("failed to add ring\n"); + break; + } + + DRM_INFO("ring %s was added\n", ring->name); + added_rings[j] = ring; + } + + return 0; +} + +static int amdgpu_mes_test_queues(struct amdgpu_ring **added_rings) +{ + struct amdgpu_ring *ring; + int i, r; + + for (i = 0; i < AMDGPU_MES_CTX_MAX_RINGS; i++) { + ring = added_rings[i]; + if (!ring) + continue; + + r = amdgpu_ring_test_ring(ring); + if (r) { + DRM_DEV_ERROR(ring->adev->dev, + "ring %s test failed (%d)\n", + ring->name, r); + return r; + } else + DRM_INFO("ring %s test pass\n", ring->name); + + r = amdgpu_ring_test_ib(ring, 1000 * 10); + if (r) { + DRM_DEV_ERROR(ring->adev->dev, + "ring %s ib test failed (%d)\n", + ring->name, r); + return r; + } else + DRM_INFO("ring %s ib test pass\n", ring->name); + } + + return 0; +} + +int amdgpu_mes_self_test(struct amdgpu_device *adev) +{ + struct amdgpu_vm *vm = NULL; + struct amdgpu_mes_ctx_data ctx_data = {0}; + struct amdgpu_ring *added_rings[AMDGPU_MES_CTX_MAX_RINGS] = { NULL }; + int gang_ids[3] = {0}; + int queue_types[][2] = { { AMDGPU_RING_TYPE_GFX, + AMDGPU_MES_CTX_MAX_GFX_RINGS}, + { AMDGPU_RING_TYPE_COMPUTE, + AMDGPU_MES_CTX_MAX_COMPUTE_RINGS}, + { AMDGPU_RING_TYPE_SDMA, + AMDGPU_MES_CTX_MAX_SDMA_RINGS } }; + int i, r, pasid, k = 0; + + pasid = amdgpu_pasid_alloc(16); + if (pasid < 0) { + dev_warn(adev->dev, "No more PASIDs available!"); + pasid = 0; + } + + vm = kzalloc(sizeof(*vm), GFP_KERNEL); + if (!vm) { + r = -ENOMEM; + goto error_pasid; + } + + r = amdgpu_vm_init(adev, vm); + if (r) { + DRM_ERROR("failed to initialize vm\n"); + goto error_pasid; + } + + r = amdgpu_mes_ctx_alloc_meta_data(adev, &ctx_data); + if (r) { + DRM_ERROR("failed to alloc ctx meta data\n"); + goto error_pasid; + } + + ctx_data.meta_data_gpu_addr = AMDGPU_VA_RESERVED_SIZE; + r = amdgpu_mes_ctx_map_meta_data(adev, vm, &ctx_data); + if (r) { + DRM_ERROR("failed to map ctx meta data\n"); + goto error_vm; + } + + r = amdgpu_mes_create_process(adev, pasid, vm); + if (r) { + DRM_ERROR("failed to create MES process\n"); + goto error_vm; + } + + for (i = 0; i < ARRAY_SIZE(queue_types); i++) { + /* On GFX v10.3, fw hasn't supported to map sdma queue. */ + if (adev->ip_versions[GC_HWIP][0] >= IP_VERSION(10, 3, 0) && + adev->ip_versions[GC_HWIP][0] < IP_VERSION(11, 0, 0) && + queue_types[i][0] == AMDGPU_RING_TYPE_SDMA) + continue; + + r = amdgpu_mes_test_create_gang_and_queues(adev, pasid, + &gang_ids[i], + queue_types[i][0], + queue_types[i][1], + &added_rings[k], + &ctx_data); + if (r) + goto error_queues; + + k += queue_types[i][1]; + } + + /* start ring test and ib test for MES queues */ + amdgpu_mes_test_queues(added_rings); + +error_queues: + /* remove all queues */ + for (i = 0; i < ARRAY_SIZE(added_rings); i++) { + if (!added_rings[i]) + continue; + amdgpu_mes_remove_ring(adev, added_rings[i]); + } + + for (i = 0; i < ARRAY_SIZE(gang_ids); i++) { + if (!gang_ids[i]) + continue; + amdgpu_mes_remove_gang(adev, gang_ids[i]); + } + + amdgpu_mes_destroy_process(adev, pasid); + +error_vm: + BUG_ON(amdgpu_bo_reserve(ctx_data.meta_data_obj, true)); + amdgpu_vm_bo_del(adev, ctx_data.meta_data_va); + amdgpu_bo_unreserve(ctx_data.meta_data_obj); + amdgpu_vm_fini(adev, vm); + +error_pasid: + if (pasid) + amdgpu_pasid_free(pasid); + + amdgpu_mes_ctx_free_meta_data(&ctx_data); + kfree(vm); + return 0; +} |