mesa-drm/amdgpu/amdgpu_userq.c
Arvind Yadav 43e8a3f86a amdgpu: Add amdgpu userqueue IOCTL functions
This patch adds new IOCTL functions to support
userqueue create, remove, signal and wait etc.

v2:(Marek)
 - Add csa support for SDMA queue.
 - Addressed's review comments.
 - Removed raw2/op2 ioctl.
 - Added syncobj_timeline_handles in amdgpu_userq_wait IOCTL.

v3:(Yogesh)
 - Rename timeline* objects as per UAPI review (Arvind).

v4: (Marek)
 - Drop AMDGPU_USERQ_BO_WRITE as this should not be a global option
   of the IOCTL, It should be option per buffer. Hence adding separate
   array for read and write BO handles. (Arun)

 - Modify num_fences to __u16, flags changed to __u16 and placed
   the num_fences next to flags for optimal padding and size. (Arun)

v5:(Marek/Pierre-Eric)
  - add more detail params description for signal and wait IOCTL calls.
  - Remove the unused structure fields in signal and wait structs.
  - Add separate array of read and write for BO handles. (Arun)

  - Removes the unused flags parameter from the
	amdgpu_create_userqueue IOCTL. (Arvind)

v6:(Pierre-Eric)
  - Remove unused headers. (Arvind)

  - Modify the function parameter names and struct
    field names as per the review comments. (Arun)

v7:(Marek)
  - Modify the structure field name and comments. (Arun)

  - Rename vm_timeline_syncobj and add comment for
    vm_timeline_point.
  - Remove GDS buffer support from MQD. (Arvind)

v8:(Pierre-Eric)
  - Modify the function parameter names.
  - Added new function in amdgpu-symbols.txt (Arvind)

v9:(Marek)
  - Use the drm signal/wait structure as the parameter. (Arun)

Cc: Deucher, Alexander <alexander.deucher@amd.com>
Cc: Koenig, Christian <christian.koenig@amd.com>
Cc: Sharma, Shashank <shashank.sharma@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
2025-04-10 10:03:07 -04:00

121 lines
3.2 KiB
C

/*
* Copyright 2024 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 <string.h>
#include <errno.h>
#include "xf86drm.h"
#include "amdgpu_drm.h"
#include "amdgpu_internal.h"
drm_public int
amdgpu_create_userqueue(amdgpu_device_handle dev,
uint32_t ip_type,
uint32_t doorbell_handle,
uint32_t doorbell_offset,
uint64_t queue_va,
uint64_t queue_size,
uint64_t wptr_va,
uint64_t rptr_va,
void *mqd_in,
uint32_t *queue_id)
{
int ret;
union drm_amdgpu_userq userq;
uint64_t mqd_size;
if (!dev)
return -EINVAL;
switch (ip_type) {
case AMDGPU_HW_IP_GFX:
mqd_size = sizeof(struct drm_amdgpu_userq_mqd_gfx11);
break;
case AMDGPU_HW_IP_DMA:
mqd_size = sizeof(struct drm_amdgpu_userq_mqd_sdma_gfx11);
break;
case AMDGPU_HW_IP_COMPUTE:
mqd_size = sizeof(struct drm_amdgpu_userq_mqd_compute_gfx11);
break;
default:
return -EINVAL;
}
memset(&userq, 0, sizeof(userq));
userq.in.op = AMDGPU_USERQ_OP_CREATE;
userq.in.ip_type = ip_type;
userq.in.doorbell_handle = doorbell_handle;
userq.in.doorbell_offset = doorbell_offset;
userq.in.queue_va = queue_va;
userq.in.queue_size = queue_size;
userq.in.wptr_va = wptr_va;
userq.in.rptr_va = rptr_va;
userq.in.mqd = (uint64_t)mqd_in;
userq.in.mqd_size = mqd_size;
ret = drmCommandWriteRead(dev->fd, DRM_AMDGPU_USERQ,
&userq, sizeof(userq));
*queue_id = userq.out.queue_id;
return ret;
}
drm_public int
amdgpu_free_userqueue(amdgpu_device_handle dev, uint32_t queue_id)
{
union drm_amdgpu_userq userq;
memset(&userq, 0, sizeof(userq));
userq.in.op = AMDGPU_USERQ_OP_FREE;
userq.in.queue_id = queue_id;
return drmCommandWriteRead(dev->fd, DRM_AMDGPU_USERQ,
&userq, sizeof(userq));
}
drm_public int
amdgpu_userq_signal(amdgpu_device_handle dev,
struct drm_amdgpu_userq_signal *signal_data)
{
int r;
r = drmCommandWriteRead(dev->fd, DRM_AMDGPU_USERQ_SIGNAL,
signal_data, sizeof(struct drm_amdgpu_userq_signal));
return r;
}
drm_public int
amdgpu_userq_wait(amdgpu_device_handle dev,
struct drm_amdgpu_userq_wait *wait_data)
{
int r;
r = drmCommandWriteRead(dev->fd, DRM_AMDGPU_USERQ_WAIT,
wait_data, sizeof(struct drm_amdgpu_userq_wait));
return r;
}