[PATCH v3 4/9] drm/amdgpu: create GFX-gen11 MQD for userqueue
Luben Tuikov
luben.tuikov at amd.com
Tue Apr 4 16:21:38 UTC 2023
On 2023-03-29 12:04, Shashank Sharma wrote:
> From: Shashank Sharma <contactshashanksharma at gmail.com>
>
> A Memory queue descriptor (MQD) of a userqueue defines it in the harware's
> context. As MQD format can vary between different graphics IPs, we need gfx
> GEN specific handlers to create MQDs.
>
> This patch:
> - Introduces MQD hander functions for the usermode queues.
> - Adds new functions to create and destroy MQD for GFX-GEN-11-IP
>
> V1: Worked on review comments from Alex:
> - Make MQD functions GEN and IP specific
>
> V2: Worked on review comments from Alex:
> - Reuse the existing adev->mqd[ip] for MQD creation
> - Formatting and arrangement of code
>
> V3:
> - Integration with doorbell manager
>
> Cc: Alex Deucher <alexander.deucher at amd.com>
> Cc: Christian Koenig <christian.koenig at amd.com>
>
> Signed-off-by: Shashank Sharma <contactshashanksharma at gmail.com>
> Signed-off-by: Arvind Yadav <arvind.yadav at amd.com>
> ---
Don't break up the Cc tag list and the Sob tag list.
Check out the following resources:
https://www.kernel.org/doc/html/v4.12/process/5.Posting.html#patch-formatting-and-changelogs
https://www.kernel.org/doc/html/v4.12/process/submitting-patches.html#the-canonical-patch-format
> drivers/gpu/drm/amd/amdgpu/Makefile | 1 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c | 21 +++++
> .../drm/amd/amdgpu/amdgpu_userqueue_gfx_v11.c | 84 +++++++++++++++++++
> .../gpu/drm/amd/include/amdgpu_userqueue.h | 7 ++
> 4 files changed, 113 insertions(+)
> create mode 100644 drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue_gfx_v11.c
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
> index 2d90ba618e5d..2cc7897de7e6 100644
> --- a/drivers/gpu/drm/amd/amdgpu/Makefile
> +++ b/drivers/gpu/drm/amd/amdgpu/Makefile
> @@ -212,6 +212,7 @@ amdgpu-y += amdgpu_amdkfd.o
>
> # add usermode queue
> amdgpu-y += amdgpu_userqueue.o
> +amdgpu-y += amdgpu_userqueue_gfx_v11.o
>
> ifneq ($(CONFIG_HSA_AMD),)
> AMDKFD_PATH := ../amdkfd
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
> index 353f57c5a772..052c2c1e8aed 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
> @@ -81,6 +81,12 @@ static int amdgpu_userqueue_create(struct drm_file *filp, union drm_amdgpu_userq
> goto free_queue;
> }
>
> + r = uq_mgr->userq_funcs[queue->queue_type]->mqd_create(uq_mgr, queue);
> + if (r) {
> + DRM_ERROR("Failed to create/map userqueue MQD\n");
> + goto free_queue;
> + }
> +
> args->out.queue_id = queue->queue_id;
> args->out.flags = 0;
> mutex_unlock(&uq_mgr->userq_mutex);
> @@ -105,6 +111,7 @@ static void amdgpu_userqueue_destroy(struct drm_file *filp, int queue_id)
> }
>
> mutex_lock(&uq_mgr->userq_mutex);
> + uq_mgr->userq_funcs[queue->queue_type]->mqd_destroy(uq_mgr, queue);
> amdgpu_userqueue_free_index(uq_mgr, queue->queue_id);
> mutex_unlock(&uq_mgr->userq_mutex);
> kfree(queue);
> @@ -135,6 +142,19 @@ int amdgpu_userq_ioctl(struct drm_device *dev, void *data,
> return r;
> }
>
> +extern const struct amdgpu_userq_funcs userq_gfx_v11_funcs;
> +
> +static void
> +amdgpu_userqueue_setup_ip_funcs(struct amdgpu_userq_mgr *uq_mgr)
> +{
> + int maj;
> + struct amdgpu_device *adev = uq_mgr->adev;
> + uint32_t version = adev->ip_versions[GC_HWIP][0];
> +
> + maj = IP_VERSION_MAJ(version);
> + if (maj == 11)
> + uq_mgr->userq_funcs[AMDGPU_HW_IP_GFX] = &userq_gfx_v11_funcs;
> +}
>
> int amdgpu_userq_mgr_init(struct amdgpu_userq_mgr *userq_mgr, struct amdgpu_device *adev)
> {
> @@ -142,6 +162,7 @@ int amdgpu_userq_mgr_init(struct amdgpu_userq_mgr *userq_mgr, struct amdgpu_devi
> idr_init_base(&userq_mgr->userq_idr, 1);
> userq_mgr->adev = adev;
>
> + amdgpu_userqueue_setup_ip_funcs(userq_mgr);
> return 0;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue_gfx_v11.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue_gfx_v11.c
> new file mode 100644
> index 000000000000..12e1a785b65a
> --- /dev/null
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue_gfx_v11.c
> @@ -0,0 +1,84 @@
> +/*
> + * 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"
> +#include "amdgpu_userqueue.h"
> +
> +static int
> +amdgpu_userq_gfx_v11_mqd_create(struct amdgpu_userq_mgr *uq_mgr, struct amdgpu_usermode_queue *queue)
> +{
> + struct amdgpu_device *adev = uq_mgr->adev;
> + struct amdgpu_userq_ctx_space *mqd = &queue->mqd;
> + struct amdgpu_mqd *gfx_v11_mqd = &adev->mqds[queue->queue_type];
> + int size = gfx_v11_mqd->mqd_size;
> + int r;
> +
> + r = amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
> + AMDGPU_GEM_DOMAIN_GTT,
> + &mqd->obj,
> + &mqd->gpu_addr,
> + &mqd->cpu_ptr);
> + if (r) {
> + DRM_ERROR("Failed to allocate bo for userqueue (%d)", r);
> + return r;
> + }
> +
> + memset(mqd->cpu_ptr, 0, size);
> + r = amdgpu_bo_reserve(mqd->obj, false);
> + if (unlikely(r != 0)) {
> + DRM_ERROR("Failed to reserve mqd for userqueue (%d)", r);
> + goto free_mqd;
> + }
> +
> + queue->userq_prop.use_doorbell = true;
> + queue->userq_prop.mqd_gpu_addr = mqd->gpu_addr;
> + r = gfx_v11_mqd->init_mqd(adev, (void *)mqd->cpu_ptr, &queue->userq_prop);
> + amdgpu_bo_unreserve(mqd->obj);
> + if (r) {
> + DRM_ERROR("Failed to init MQD for queue\n");
> + goto free_mqd;
> + }
> +
> + DRM_DEBUG_DRIVER("MQD for queue %d created\n", queue->queue_id);
> + return 0;
> +
> +free_mqd:
> + amdgpu_bo_free_kernel(&mqd->obj,
> + &mqd->gpu_addr,
> + &mqd->cpu_ptr);
> + return r;
> +}
> +
> +static void
> +amdgpu_userq_gfx_v11_mqd_destroy(struct amdgpu_userq_mgr *uq_mgr, struct amdgpu_usermode_queue *queue)
> +{
> + struct amdgpu_userq_ctx_space *mqd = &queue->mqd;
> +
> + amdgpu_bo_free_kernel(&mqd->obj,
> + &mqd->gpu_addr,
> + &mqd->cpu_ptr);
> +}
> +
> +const struct amdgpu_userq_funcs userq_gfx_v11_funcs = {
> + .mqd_create = amdgpu_userq_gfx_v11_mqd_create,
> + .mqd_destroy = amdgpu_userq_gfx_v11_mqd_destroy,
> +};
> diff --git a/drivers/gpu/drm/amd/include/amdgpu_userqueue.h b/drivers/gpu/drm/amd/include/amdgpu_userqueue.h
> index 7625a862b1fc..2911c88d0fed 100644
> --- a/drivers/gpu/drm/amd/include/amdgpu_userqueue.h
> +++ b/drivers/gpu/drm/amd/include/amdgpu_userqueue.h
> @@ -27,6 +27,12 @@
> #include "amdgpu.h"
> #define AMDGPU_MAX_USERQ 512
>
> +struct amdgpu_userq_ctx_space {
> + struct amdgpu_bo *obj;
> + uint64_t gpu_addr;
> + void *cpu_ptr;
> +};
> +
Code is very readable when the name colums are aligned:
struct amdgpu_userq_ctx_space {
struct amdgpu_bo *obj;
uint64_t gpu_addr;
void *cpu_ptr;
};
And for the rest of your patches.
Regards,
Luben
> struct amdgpu_usermode_queue {
> int queue_id;
> int queue_type;
> @@ -35,6 +41,7 @@ struct amdgpu_usermode_queue {
> struct amdgpu_vm *vm;
> struct amdgpu_userq_mgr *userq_mgr;
> struct amdgpu_mqd_prop userq_prop;
> + struct amdgpu_userq_ctx_space mqd;
> };
>
> struct amdgpu_userq_funcs {
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