From: Chunming Zhou <David1.Zhou@xxxxxxx>
This adds a unique id for each vm client so we can
properly track them.
Signed-off-by: Chunming Zhou <David1.Zhou@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Reviewed-by: Monk Liu <monk.liu@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 6 ++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 ++
2 files changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 1012bd3..7bea3e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -363,6 +363,7 @@ struct amdgpu_fence_driver {
/* some special values for the owner field */
#define AMDGPU_FENCE_OWNER_UNDEFINED ((void*)0ul)
#define AMDGPU_FENCE_OWNER_VM ((void*)1ul)
+#define AMDGPU_CLIENT_ID_RESERVED 2
#define AMDGPU_FENCE_FLAG_64BIT (1 << 0)
#define AMDGPU_FENCE_FLAG_INT (1 << 1)
@@ -885,6 +886,9 @@ struct amdgpu_vm {
/* Scheduler entity for page table updates */
struct amd_sched_entity entity;
+
+ /* client id */
+ u64 client_id;
};
struct amdgpu_vm_id {
@@ -924,6 +928,8 @@ struct amdgpu_vm_manager {
struct amdgpu_ring *vm_pte_rings[AMDGPU_MAX_RINGS];
unsigned vm_pte_num_rings;
atomic_t vm_pte_next_ring;
+ /* client id counter */
+ atomic64_t client_counter;
};
void amdgpu_vm_manager_init(struct amdgpu_device *adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index e06d066..275378c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1386,6 +1386,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm)
for (i = 0; i < AMDGPU_MAX_RINGS; ++i)
vm->ids[i] = NULL;
vm->va = RB_ROOT;
+ vm->client_id = atomic64_inc_return(&adev->vm_manager.client_counter);
spin_lock_init(&vm->status_lock);
INIT_LIST_HEAD(&vm->invalidated);
INIT_LIST_HEAD(&vm->cleared);
@@ -1514,6 +1515,7 @@ void amdgpu_vm_manager_init(struct amdgpu_device *adev)
}
atomic_set(&adev->vm_manager.vm_pte_next_ring, 0);
+ atomic64_set(&adev->vm_manager.client_counter, AMDGPU_CLIENT_ID_RESERVED);
}
/**
--
2.5.5
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