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/*
* Copyright © 2023 Intel Corporation
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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 "xe/anv_queue.h"
#include "anv_private.h"
#include "common/xe/intel_engine.h"
#include "common/intel_gem.h"
#include "xe/anv_device.h"
#include "drm-uapi/xe_drm.h"
#include "drm-uapi/gpu_scheduler.h"
VkResult
anv_xe_create_engine(struct anv_device *device,
struct anv_queue *queue,
const VkDeviceQueueCreateInfo *pCreateInfo)
{
struct anv_physical_device *physical = device->physical;
struct anv_queue_family *queue_family =
&physical->queue.families[pCreateInfo->queueFamilyIndex];
const struct intel_query_engine_info *engines = physical->engine_info;
struct drm_xe_engine_class_instance *instances;
instances = vk_alloc(&device->vk.alloc,
sizeof(*instances) * queue_family->queueCount, 8,
VK_SYSTEM_ALLOCATION_SCOPE_DEVICE);
if (!instances)
return VK_ERROR_OUT_OF_HOST_MEMORY;
/* Build a list of all compatible HW engines */
uint32_t count = 0;
for (uint32_t i = 0; i < engines->num_engines; i++) {
const struct intel_engine_class_instance engine = engines->engines[i];
if (engine.engine_class != queue_family->engine_class)
continue;
instances[count].engine_class = intel_engine_class_to_xe(engine.engine_class);
instances[count].engine_instance = engine.engine_instance;
instances[count++].gt_id = engine.gt_id;
}
assert(device->vm_id != 0);
struct drm_xe_engine_create create = {
/* Allows KMD to pick one of those engines for the submission queue */
.instances = (uintptr_t)instances,
.vm_id = device->vm_id,
.width = 1,
.num_placements = count,
};
int ret = intel_ioctl(device->fd, DRM_IOCTL_XE_ENGINE_CREATE, &create);
vk_free(&device->vk.alloc, instances);
if (ret)
return vk_errorf(device, VK_ERROR_UNKNOWN, "Unable to create engine");
queue->engine_id = create.engine_id;
const VkDeviceQueueGlobalPriorityCreateInfoKHR *queue_priority =
vk_find_struct_const(pCreateInfo->pNext,
DEVICE_QUEUE_GLOBAL_PRIORITY_CREATE_INFO_KHR);
const VkQueueGlobalPriorityKHR priority = queue_priority ?
queue_priority->globalPriority :
VK_QUEUE_GLOBAL_PRIORITY_MEDIUM_KHR;
/* As per spec, the driver implementation may deny requests to acquire
* a priority above the default priority (MEDIUM) if the caller does not
* have sufficient privileges. In this scenario VK_ERROR_NOT_PERMITTED_KHR
* is returned.
*/
if (physical->max_context_priority >= VK_QUEUE_GLOBAL_PRIORITY_MEDIUM_KHR) {
if (priority > physical->max_context_priority)
goto priority_error;
struct drm_xe_engine_set_property engine_property = {
.engine_id = create.engine_id,
.property = XE_ENGINE_SET_PROPERTY_PRIORITY,
.value = anv_vk_priority_to_drm_sched_priority(priority),
};
ret = intel_ioctl(device->fd, DRM_IOCTL_XE_ENGINE_SET_PROPERTY,
&engine_property);
if (ret && priority > VK_QUEUE_GLOBAL_PRIORITY_MEDIUM_KHR)
goto priority_error;
}
return VK_SUCCESS;
priority_error:
anv_xe_destroy_engine(device, queue);
return vk_error(device, VK_ERROR_NOT_PERMITTED_KHR);
}
void
anv_xe_destroy_engine(struct anv_device *device, struct anv_queue *queue)
{
struct drm_xe_engine_destroy destroy = {
.engine_id = queue->engine_id,
};
intel_ioctl(device->fd, DRM_IOCTL_XE_ENGINE_DESTROY, &destroy);
}
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