From: Christian K?nig <christian.koe...@amd.com>
Otherwise we allocate a new VMID on nearly every submit.
Signed-off-by: Christian K?nig <christian.koenig at amd.com>
---
drivers/gpu/drm/radeon/radeon.h | 2 ++
drivers/gpu/drm/radeon/radeon_gart.c | 8 +++++++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index c5519ca..4a8ac1c 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -867,6 +867,8 @@ struct radeon_vm {
struct radeon_fence *fence;
/* last flush or NULL if we still need to flush */
struct radeon_fence *last_flush;
+ /* last use of vmid */
+ struct radeon_fence *last_id_use;
};
struct radeon_vm_manager {
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c
b/drivers/gpu/drm/radeon/radeon_gart.c
index 96e4400..0e9143b 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -713,7 +713,7 @@ struct radeon_fence *radeon_vm_grab_id(struct radeon_device
*rdev,
unsigned i;
/* check if the id is still valid */
- if (vm->fence && vm->fence == rdev->vm_manager.active[vm->id])
+ if (vm->last_id_use && vm->last_id_use ==
rdev->vm_manager.active[vm->id])
return NULL;
/* we definately need to flush */
@@ -769,6 +769,9 @@ void radeon_vm_fence(struct radeon_device *rdev,
radeon_fence_unref(&vm->fence);
vm->fence = radeon_fence_ref(fence);
+
+ radeon_fence_unref(&vm->last_id_use);
+ vm->last_id_use = radeon_fence_ref(fence);
}
/**
@@ -1303,6 +1306,8 @@ void radeon_vm_init(struct radeon_device *rdev, struct
radeon_vm *vm)
{
vm->id = 0;
vm->fence = NULL;
+ vm->last_flush = NULL;
+ vm->last_id_use = NULL;
mutex_init(&vm->mutex);
INIT_LIST_HEAD(&vm->list);
INIT_LIST_HEAD(&vm->va);
@@ -1341,5 +1346,6 @@ void radeon_vm_fini(struct radeon_device *rdev, struct
radeon_vm *vm)
}
radeon_fence_unref(&vm->fence);
radeon_fence_unref(&vm->last_flush);
+ radeon_fence_unref(&vm->last_id_use);
mutex_unlock(&vm->mutex);
}
--
1.8.1.2
