A Memory queue descriptor (MQD) of a userqueue defines it in
the hw's context. As MQD format can vary between different
graphics IPs, we need gfx GEN specific handlers to create MQDs.
This patch:
- Introduces MQD handler functions for the usermode queues.
- Adds new functions to create and destroy userqueue 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
V4: Review comments addressed:
- Do not create a new file for userq, reuse gfx_v11_0.c (Alex)
- Align name of structure members (Luben)
- Don't break up the Cc tag list and the Sob tag list in commit
message (Luben)
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: Christian Koenig <christian.koenig at amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma at amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c | 25 ++++++++
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 57 +++++++++++++++++++
.../gpu/drm/amd/include/amdgpu_userqueue.h | 7 +++
3 files changed, 89 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
index 333f31efbe7b..e95fb35b0cb5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userqueue.c
@@ -81,6 +81,14 @@ static int amdgpu_userqueue_create_gfx(struct drm_file *filp, union drm_amdgpu_u
goto free_queue;
}
+ if (uq_mgr->userq_funcs[queue->queue_type]->mqd_create) {
+ 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);
@@ -119,6 +127,8 @@ static void amdgpu_userqueue_destroy(struct drm_file *filp, int queue_id)
}
mutex_lock(&uq_mgr->userq_mutex);
+ if (uq_mgr->userq_funcs[queue->queue_type]->mqd_destroy)
+ 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);
@@ -149,6 +159,20 @@ 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];
+
+ /* We support usermode queue only for GFX IP as of now */
+ 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)
{
@@ -156,6 +180,7 @@ 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/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index a56c6e106d00..9f7b14966ac8 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -30,6 +30,7 @@
#include "amdgpu_psp.h"
#include "amdgpu_smu.h"
#include "amdgpu_atomfirmware.h"
+#include "amdgpu_userqueue.h"
#include "imu_v11_0.h"
#include "soc21.h"
#include "nvd.h"
@@ -6404,3 +6405,59 @@ const struct amdgpu_ip_block_version gfx_v11_0_ip_block =
.rev = 0,
.funcs = &gfx_v11_0_ip_funcs,
};
+
+static int
+gfx_v11_userq_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
+gfx_v11_userq_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 = gfx_v11_userq_mqd_create,
+ .mqd_destroy = gfx_v11_userq_mqd_destroy,
+};
diff --git a/drivers/gpu/drm/amd/include/amdgpu_userqueue.h b/drivers/gpu/drm/amd/include/amdgpu_userqueue.h
index 8d8f6b3bcda5..e7da27918bd2 100644
--- a/drivers/gpu/drm/amd/include/amdgpu_userqueue.h
+++ b/drivers/gpu/drm/amd/include/amdgpu_userqueue.h
@@ -28,6 +28,12 @@
#include "amdgpu.h"
#define AMDGPU_MAX_USERQ 512
+struct amdgpu_userq_ctx_space {
+ uint64_t gpu_addr;
+ void *cpu_ptr;
+ struct amdgpu_bo *obj;
+};
+
struct amdgpu_usermode_queue {
int queue_id;
int queue_type;
@@ -36,6 +42,7 @@ struct amdgpu_usermode_queue {
struct amdgpu_mqd_prop userq_prop;
struct amdgpu_userq_mgr *userq_mgr;
struct amdgpu_vm *vm;
+ struct amdgpu_userq_ctx_space mqd;
};
struct amdgpu_userq_funcs {
--
2.40.0