[PATCH 2/4] drm/amdgpu: add support for per VM BOs v2
Christian König
deathsimple at vodafone.de
Wed Aug 30 15:00:07 UTC 2017
From: Christian König <christian.koenig at amd.com>
Per VM BOs are handled like VM PDs and PTs. They are always valid and don't
need to be specified in the BO lists.
v2: validate PDs/PTs first
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 79 ++++++++++++++++++++++++----------
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 5 ++-
3 files changed, 60 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index f68ac56..48e18cc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -813,7 +813,7 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p)
}
- r = amdgpu_vm_clear_moved(adev, vm, &p->job->sync);
+ r = amdgpu_vm_handle_moved(adev, vm, &p->job->sync);
if (amdgpu_vm_debug && p->bo_list) {
/* Invalidate all BOs to test for userspace bugs */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 4cdfb70..6cd20e7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -189,14 +189,18 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
spin_unlock(&glob->lru_lock);
}
- if (vm->use_cpu_for_update) {
+ if (bo->tbo.type == ttm_bo_type_kernel &&
+ vm->use_cpu_for_update) {
r = amdgpu_bo_kmap(bo, NULL);
if (r)
return r;
}
spin_lock(&vm->status_lock);
- list_move(&bo_base->vm_status, &vm->relocated);
+ if (bo->tbo.type != ttm_bo_type_kernel)
+ list_move(&bo_base->vm_status, &vm->moved);
+ else
+ list_move(&bo_base->vm_status, &vm->relocated);
}
spin_unlock(&vm->status_lock);
@@ -1994,20 +1998,23 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
}
/**
- * amdgpu_vm_clear_moved - clear moved BOs in the PT
+ * amdgpu_vm_handle_moved - handle moved BOs in the PT
*
* @adev: amdgpu_device pointer
* @vm: requested vm
+ * @sync: sync object to add fences to
*
- * Make sure all moved BOs are cleared in the PT.
+ * Make sure all BOs which are moved are updated in the PTs.
* Returns 0 for success.
*
- * PTs have to be reserved and mutex must be locked!
+ * PTs have to be reserved!
*/
-int amdgpu_vm_clear_moved(struct amdgpu_device *adev, struct amdgpu_vm *vm,
- struct amdgpu_sync *sync)
+int amdgpu_vm_handle_moved(struct amdgpu_device *adev,
+ struct amdgpu_vm *vm,
+ struct amdgpu_sync *sync)
{
struct amdgpu_bo_va *bo_va = NULL;
+ bool clear;
int r = 0;
spin_lock(&vm->status_lock);
@@ -2016,7 +2023,10 @@ int amdgpu_vm_clear_moved(struct amdgpu_device *adev, struct amdgpu_vm *vm,
struct amdgpu_bo_va, base.vm_status);
spin_unlock(&vm->status_lock);
- r = amdgpu_vm_bo_update(adev, bo_va, true);
+ /* Per VM BOs never need to bo cleared in the page tables */
+ clear = bo_va->base.bo->tbo.resv != vm->root.base.bo->tbo.resv;
+
+ r = amdgpu_vm_bo_update(adev, bo_va, clear);
if (r)
return r;
@@ -2068,6 +2078,37 @@ struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev,
return bo_va;
}
+
+/**
+ * amdgpu_vm_bo_insert_mapping - insert a new mapping
+ *
+ * @adev: amdgpu_device pointer
+ * @bo_va: bo_va to store the address
+ * @mapping: the mapping to insert
+ *
+ * Insert a new mapping into all structures.
+ */
+static void amdgpu_vm_bo_insert_map(struct amdgpu_device *adev,
+ struct amdgpu_bo_va *bo_va,
+ struct amdgpu_bo_va_mapping *mapping)
+{
+ struct amdgpu_vm *vm = bo_va->base.vm;
+ struct amdgpu_bo *bo = bo_va->base.bo;
+
+ list_add(&mapping->list, &bo_va->invalids);
+ amdgpu_vm_it_insert(mapping, &vm->va);
+
+ if (mapping->flags & AMDGPU_PTE_PRT)
+ amdgpu_vm_prt_get(adev);
+
+ if (bo && bo->tbo.resv == vm->root.base.bo->tbo.resv) {
+ spin_lock(&vm->status_lock);
+ list_move(&bo_va->base.vm_status, &vm->moved);
+ spin_unlock(&vm->status_lock);
+ }
+ trace_amdgpu_vm_bo_map(bo_va, mapping);
+}
+
/**
* amdgpu_vm_bo_map - map bo inside a vm
*
@@ -2119,18 +2160,12 @@ int amdgpu_vm_bo_map(struct amdgpu_device *adev,
if (!mapping)
return -ENOMEM;
- INIT_LIST_HEAD(&mapping->list);
mapping->start = saddr;
mapping->last = eaddr;
mapping->offset = offset;
mapping->flags = flags;
- list_add(&mapping->list, &bo_va->invalids);
- amdgpu_vm_it_insert(mapping, &vm->va);
-
- if (flags & AMDGPU_PTE_PRT)
- amdgpu_vm_prt_get(adev);
- trace_amdgpu_vm_bo_map(bo_va, mapping);
+ amdgpu_vm_bo_insert_map(adev, bo_va, mapping);
return 0;
}
@@ -2157,7 +2192,6 @@ int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev,
{
struct amdgpu_bo_va_mapping *mapping;
struct amdgpu_bo *bo = bo_va->base.bo;
- struct amdgpu_vm *vm = bo_va->base.vm;
uint64_t eaddr;
int r;
@@ -2191,12 +2225,7 @@ int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev,
mapping->offset = offset;
mapping->flags = flags;
- list_add(&mapping->list, &bo_va->invalids);
- amdgpu_vm_it_insert(mapping, &vm->va);
-
- if (flags & AMDGPU_PTE_PRT)
- amdgpu_vm_prt_get(adev);
- trace_amdgpu_vm_bo_map(bo_va, mapping);
+ amdgpu_vm_bo_insert_map(adev, bo_va, mapping);
return 0;
}
@@ -2411,7 +2440,11 @@ void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev,
bo_base->moved = true;
if (evicted && bo->tbo.resv == vm->root.base.bo->tbo.resv) {
spin_lock(&bo_base->vm->status_lock);
- list_move(&bo_base->vm_status, &vm->evicted);
+ if (bo->tbo.type == ttm_bo_type_kernel)
+ list_move(&bo_base->vm_status, &vm->evicted);
+ else
+ list_move_tail(&bo_base->vm_status,
+ &vm->evicted);
spin_unlock(&bo_base->vm->status_lock);
continue;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index c3753af..90b7741 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -249,8 +249,9 @@ int amdgpu_vm_update_directories(struct amdgpu_device *adev,
int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
struct amdgpu_vm *vm,
struct dma_fence **fence);
-int amdgpu_vm_clear_moved(struct amdgpu_device *adev, struct amdgpu_vm *vm,
- struct amdgpu_sync *sync);
+int amdgpu_vm_handle_moved(struct amdgpu_device *adev,
+ struct amdgpu_vm *vm,
+ struct amdgpu_sync *sync);
int amdgpu_vm_bo_update(struct amdgpu_device *adev,
struct amdgpu_bo_va *bo_va,
bool clear);
--
2.7.4
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