From: Christian König <christian.koe...@amd.com>
This should save us a bunch of command submission overhead.
v2: move the LRU move to the right place to avoid the move for the root BO
and handle the shadow BOs as well. This turned out to be a bug fix because
the move needs to happen before the kmap.
Signed-off-by: Christian König <christian.koe...@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehl...@amd.com> (v1)
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 15 +++------
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 58 +++++++---------------------------
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 2 --
3 files changed, 16 insertions(+), 59 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index cd5c08a..7fb4baa 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -669,10 +669,8 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
}
error_validate:
- if (r) {
- amdgpu_vm_move_pt_bos_in_lru(p->adev, &fpriv->vm);
+ if (r)
ttm_eu_backoff_reservation(&p->ticket, &p->validated);
- }
error_free_pages:
@@ -720,21 +718,18 @@ static int amdgpu_cs_sync_rings(struct amdgpu_cs_parser
*p)
* If error is set than unvalidate buffer, otherwise just free memory
* used by parsing context.
**/
-static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser, int error,
bool backoff)
+static void amdgpu_cs_parser_fini(struct amdgpu_cs_parser *parser, int error,
+ bool backoff)
{
- struct amdgpu_fpriv *fpriv = parser->filp->driver_priv;
unsigned i;
- if (!error) {
- amdgpu_vm_move_pt_bos_in_lru(parser->adev, &fpriv->vm);
-
+ if (!error)
ttm_eu_fence_buffer_objects(&parser->ticket,
&parser->validated,
parser->fence);
- } else if (backoff) {
+ else if (backoff)
ttm_eu_backoff_reservation(&parser->ticket,
&parser->validated);
- }
dma_fence_put(parser->fence);
if (parser->ctx)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index a1d4294..a375135 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -159,7 +159,8 @@ void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
*/
static int amdgpu_vm_validate_level(struct amdgpu_vm_pt *parent,
int (*validate)(void *, struct amdgpu_bo *),
- void *param, bool use_cpu_for_update)
+ void *param, bool use_cpu_for_update,
+ struct ttm_bo_global *glob)
{
unsigned i;
int r;
@@ -183,12 +184,18 @@ static int amdgpu_vm_validate_level(struct amdgpu_vm_pt
*parent,
if (r)
return r;
+ spin_lock(&glob->lru_lock);
+ ttm_bo_move_to_lru_tail(&entry->bo->tbo);
+ if (entry->bo->shadow)
+ ttm_bo_move_to_lru_tail(&entry->bo->shadow->tbo);
+ spin_unlock(&glob->lru_lock);
+
/*
* Recurse into the sub directory. This is harmless because we
* have only a maximum of 5 layers.
*/
r = amdgpu_vm_validate_level(entry, validate, param,
- use_cpu_for_update);
+ use_cpu_for_update, glob);
if (r)
return r;
}
@@ -220,54 +227,11 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev,
struct amdgpu_vm *vm,
return 0;
return amdgpu_vm_validate_level(&vm->root, validate, param,
- vm->use_cpu_for_update);
+ vm->use_cpu_for_update,
+ adev->mman.bdev.glob);
}
/**
- * amdgpu_vm_move_level_in_lru - move one level of PT BOs to the LRU tail
- *
- * @adev: amdgpu device instance
- * @vm: vm providing the BOs
- *
- * Move the PT BOs to the tail of the LRU.
- */
-static void amdgpu_vm_move_level_in_lru(struct amdgpu_vm_pt *parent)
-{
- unsigned i;
-
- if (!parent->entries)
- return;
-
- for (i = 0; i <= parent->last_entry_used; ++i) {
- struct amdgpu_vm_pt *entry = &parent->entries[i];
-
- if (!entry->bo)
- continue;
-
- ttm_bo_move_to_lru_tail(&entry->bo->tbo);
- amdgpu_vm_move_level_in_lru(entry);
- }
-}
-
-/**
- * amdgpu_vm_move_pt_bos_in_lru - move the PT BOs to the LRU tail
- *
- * @adev: amdgpu device instance
- * @vm: vm providing the BOs
- *
- * Move the PT BOs to the tail of the LRU.
- */
-void amdgpu_vm_move_pt_bos_in_lru(struct amdgpu_device *adev,
- struct amdgpu_vm *vm)
-{
- struct ttm_bo_global *glob = adev->mman.bdev.glob;
-
- spin_lock(&glob->lru_lock);
- amdgpu_vm_move_level_in_lru(&vm->root);
- spin_unlock(&glob->lru_lock);
-}
-
- /**
* amdgpu_vm_alloc_levels - allocate the PD/PT levels
*
* @adev: amdgpu_device pointer
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 34d9174..bac09ce 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -220,8 +220,6 @@ void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
int (*callback)(void *p, struct amdgpu_bo *bo),
void *param);
-void amdgpu_vm_move_pt_bos_in_lru(struct amdgpu_device *adev,
- struct amdgpu_vm *vm);
int amdgpu_vm_alloc_pts(struct amdgpu_device *adev,
struct amdgpu_vm *vm,
uint64_t saddr, uint64_t size);
--
2.7.4
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