mirror of
https://github.com/raspberrypi/linux.git
synced 2025-12-17 15:24:33 +00:00
a242a3e4b5
The basic idea in this redesign is to add an eviction fence only in UQ
resume path. When userqueue is not present, keep ev_fence as NULL
Main changes are:
- do not create the eviction fence during evf_mgr_init, keeping
evf_mgr->ev_fence=NULL until UQ get active.
- do not replace the ev_fence in evf_resume path, but replace it only in
uq_resume path, so remove all the unnecessary code from ev_fence_resume.
- add a new helper function (amdgpu_userqueue_ensure_ev_fence) which
will do the following:
- flush any pending uq_resume work, so that it could create an
eviction_fence
- if there is no pending uq_resume_work, add a uq_resume work and
wait for it to execute so that we always have a valid ev_fence
- call this helper function from two places, to ensure we have a valid
ev_fence:
- when a new uq is created
- when a new uq completion fence is created
v2: Worked on review comments by Christian.
v3: Addressed few more review comments by Christian.
v4: Move mutex lock outside of the amdgpu_userqueue_suspend()
function (Christian).
v5: squash in build fix (Alex)
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
/* SPDX-License-Identifier: MIT */
|
|
/*
|
|
* Copyright 2023 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_USERQUEUE_H_
|
|
#define AMDGPU_USERQUEUE_H_
|
|
#include "amdgpu_eviction_fence.h"
|
|
|
|
#define AMDGPU_MAX_USERQ_COUNT 512
|
|
|
|
#define to_ev_fence(f) container_of(f, struct amdgpu_eviction_fence, base)
|
|
#define uq_mgr_to_fpriv(u) container_of(u, struct amdgpu_fpriv, userq_mgr)
|
|
#define work_to_uq_mgr(w, name) container_of(w, struct amdgpu_userq_mgr, name)
|
|
|
|
struct amdgpu_mqd_prop;
|
|
|
|
struct amdgpu_userq_obj {
|
|
void *cpu_ptr;
|
|
uint64_t gpu_addr;
|
|
struct amdgpu_bo *obj;
|
|
};
|
|
|
|
struct amdgpu_usermode_queue {
|
|
int queue_type;
|
|
uint8_t queue_active;
|
|
uint64_t doorbell_handle;
|
|
uint64_t doorbell_index;
|
|
uint64_t flags;
|
|
struct amdgpu_mqd_prop *userq_prop;
|
|
struct amdgpu_userq_mgr *userq_mgr;
|
|
struct amdgpu_vm *vm;
|
|
struct amdgpu_userq_obj mqd;
|
|
struct amdgpu_userq_obj db_obj;
|
|
struct amdgpu_userq_obj fw_obj;
|
|
struct amdgpu_userq_obj wptr_obj;
|
|
struct xarray fence_drv_xa;
|
|
struct amdgpu_userq_fence_driver *fence_drv;
|
|
struct dma_fence *last_fence;
|
|
};
|
|
|
|
struct amdgpu_userq_funcs {
|
|
int (*mqd_create)(struct amdgpu_userq_mgr *uq_mgr,
|
|
struct drm_amdgpu_userq_in *args,
|
|
struct amdgpu_usermode_queue *queue);
|
|
void (*mqd_destroy)(struct amdgpu_userq_mgr *uq_mgr,
|
|
struct amdgpu_usermode_queue *uq);
|
|
int (*suspend)(struct amdgpu_userq_mgr *uq_mgr,
|
|
struct amdgpu_usermode_queue *queue);
|
|
int (*resume)(struct amdgpu_userq_mgr *uq_mgr,
|
|
struct amdgpu_usermode_queue *queue);
|
|
};
|
|
|
|
/* Usermode queues for gfx */
|
|
struct amdgpu_userq_mgr {
|
|
struct idr userq_idr;
|
|
struct mutex userq_mutex;
|
|
struct amdgpu_device *adev;
|
|
struct delayed_work resume_work;
|
|
};
|
|
|
|
int amdgpu_userq_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
|
|
|
|
int amdgpu_userq_mgr_init(struct amdgpu_userq_mgr *userq_mgr, struct amdgpu_device *adev);
|
|
|
|
void amdgpu_userq_mgr_fini(struct amdgpu_userq_mgr *userq_mgr);
|
|
|
|
int amdgpu_userqueue_create_object(struct amdgpu_userq_mgr *uq_mgr,
|
|
struct amdgpu_userq_obj *userq_obj,
|
|
int size);
|
|
|
|
void amdgpu_userqueue_destroy_object(struct amdgpu_userq_mgr *uq_mgr,
|
|
struct amdgpu_userq_obj *userq_obj);
|
|
|
|
void amdgpu_userqueue_suspend(struct amdgpu_userq_mgr *uq_mgr,
|
|
struct amdgpu_eviction_fence *ev_fence);
|
|
|
|
int amdgpu_userqueue_active(struct amdgpu_userq_mgr *uq_mgr);
|
|
|
|
void amdgpu_userqueue_ensure_ev_fence(struct amdgpu_userq_mgr *userq_mgr,
|
|
struct amdgpu_eviction_fence_mgr *evf_mgr);
|
|
#endif
|