From: Shashank Sharma <contactshashanksha...@gmail.com> This patch adds skeleton code for amdgpu usermode queue. It contains: - A new files with init functions of usermode queues. - A queue context manager in driver private data.
V1: Worked on design review comments from RFC patch series: (https://patchwork.freedesktop.org/series/112214/) - Alex: Keep a list of queues, instead of single queue per process. - Christian: Use the queue manager instead of global ptrs, Don't keep the queue structure in amdgpu_ctx V2: - Reformatted code, split the big patch into two V3: - Integration with doorbell manager Cc: Alex Deucher <alexander.deuc...@amd.com> Cc: Christian Koenig <christian.koe...@amd.com> Signed-off-by: Shashank Sharma <contactshashanksha...@gmail.com> --- drivers/gpu/drm/amd/amdgpu/Makefile | 2 + drivers/gpu/drm/amd/amdgpu/amdgpu.h | 10 +++- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 6 +++ drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c | 39 +++++++++++++++ .../gpu/drm/amd/include/amdgpu_userqueue.h | 49 +++++++++++++++++++ 6 files changed, 106 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c create mode 100644 drivers/gpu/drm/amd/include/amdgpu_userqueue.h diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile index 204665f20319..2d90ba618e5d 100644 --- a/drivers/gpu/drm/amd/amdgpu/Makefile +++ b/drivers/gpu/drm/amd/amdgpu/Makefile @@ -210,6 +210,8 @@ amdgpu-y += \ # add amdkfd interfaces amdgpu-y += amdgpu_amdkfd.o +# add usermode queue +amdgpu-y += amdgpu_userqueue.o ifneq ($(CONFIG_HSA_AMD),) AMDKFD_PATH := ../amdkfd diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 6b74df446694..c5f9af0e74ee 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -438,6 +438,14 @@ struct amdgpu_sa_manager { uint32_t align; }; +/* Gfx usermode queues */ +struct amdgpu_userq_mgr { + struct idr userq_idr; + struct mutex userq_mutex; + struct amdgpu_device *adev; + const struct amdgpu_userq_funcs *userq_funcs[AMDGPU_HW_IP_NUM]; +}; + /* sub-allocation buffer */ struct amdgpu_sa_bo { struct list_head olist; @@ -470,7 +478,6 @@ struct amdgpu_flip_work { bool async; }; - /* * file private structure */ @@ -482,6 +489,7 @@ struct amdgpu_fpriv { struct mutex bo_list_lock; struct idr bo_list_handles; struct amdgpu_ctx_mgr ctx_mgr; + struct amdgpu_userq_mgr userq_mgr; }; int amdgpu_file_to_fpriv(struct file *filp, struct amdgpu_fpriv **fpriv); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index b4f2d61ea0d5..2d6bcfd727c8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -52,6 +52,7 @@ #include "amdgpu_ras.h" #include "amdgpu_xgmi.h" #include "amdgpu_reset.h" +#include "amdgpu_userqueue.h" /* * KMS wrapper. diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 7aa7e52ca784..b16b8155a157 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -43,6 +43,7 @@ #include "amdgpu_gem.h" #include "amdgpu_display.h" #include "amdgpu_ras.h" +#include "amdgpu_userqueue.h" void amdgpu_unregister_gpu_instance(struct amdgpu_device *adev) { @@ -1187,6 +1188,10 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) amdgpu_ctx_mgr_init(&fpriv->ctx_mgr, adev); + r = amdgpu_userq_mgr_init(&fpriv->userq_mgr, adev); + if (r) + DRM_WARN("Can't setup usermode queues, only legacy workload submission will work\n"); + file_priv->driver_priv = fpriv; goto out_suspend; @@ -1254,6 +1259,7 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev, amdgpu_ctx_mgr_fini(&fpriv->ctx_mgr); amdgpu_vm_fini(adev, &fpriv->vm); + amdgpu_userq_mgr_fini(&fpriv->userq_mgr); if (pasid) amdgpu_pasid_free_delayed(pd->tbo.base.resv, pasid); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c new file mode 100644 index 000000000000..13e1eebc1cb6 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c @@ -0,0 +1,39 @@ +/* + * Copyright 2022 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.h" + +int amdgpu_userq_mgr_init(struct amdgpu_userq_mgr *userq_mgr, struct amdgpu_device *adev) +{ + mutex_init(&userq_mgr->userq_mutex); + idr_init_base(&userq_mgr->userq_idr, 1); + userq_mgr->adev = adev; + + return 0; +} + +void amdgpu_userq_mgr_fini(struct amdgpu_userq_mgr *userq_mgr) +{ + idr_destroy(&userq_mgr->userq_idr); + mutex_destroy(&userq_mgr->userq_mutex); +} diff --git a/drivers/gpu/drm/amd/include/amdgpu_userqueue.h b/drivers/gpu/drm/amd/include/amdgpu_userqueue.h new file mode 100644 index 000000000000..7eeb8c9e6575 --- /dev/null +++ b/drivers/gpu/drm/amd/include/amdgpu_userqueue.h @@ -0,0 +1,49 @@ +/* + * Copyright 2022 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.h" +#define AMDGPU_MAX_USERQ 512 + +struct amdgpu_usermode_queue { + int queue_id; + int queue_type; + uint64_t flags; + uint64_t doorbell_handle; + struct amdgpu_vm *vm; + struct amdgpu_userq_mgr *userq_mgr; + struct amdgpu_mqd_prop userq_prop; +}; + +struct amdgpu_userq_funcs { + int (*mqd_create)(struct amdgpu_userq_mgr *, struct amdgpu_usermode_queue *); + void (*mqd_destroy)(struct amdgpu_userq_mgr *, struct amdgpu_usermode_queue *); +}; + +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); + +#endif -- 2.40.0
