From: Shashank Sharma <contactshashanksharma@xxxxxxxxx>
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@xxxxxxx>
Cc: Christian Koenig <christian.koenig@xxxxxxx>
Signed-off-by: Shashank Sharma <contactshashanksharma@xxxxxxxxx>
Signed-off-by: Arvind Yadav <arvind.yadav@xxxxxxx>
---
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;
+};
+
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 {
--
2.40.0
