From: Christian König <christian.koenig@xxxxxxx>
Saves a bunch of CPU cycles when swapping things back in and
allows us to split the VM headers into a separate file.
v2: rename parameters
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 5 ++--
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 42 ++++++++++++++++++++++-----------
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 27 ++++++++++++---------
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 21 ++++++++++-------
4 files changed, 60 insertions(+), 35 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 0b54b5b..3bcf538 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -917,8 +917,9 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm);
void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
struct list_head *validated,
struct amdgpu_bo_list_entry *entry);
-void amdgpu_vm_get_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
- struct list_head *duplicates);
+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_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 504ae09..a13e551 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -388,9 +388,9 @@ retry:
/* Last resort, try to evict something from the current working set */
static bool amdgpu_cs_try_evict(struct amdgpu_cs_parser *p,
- struct amdgpu_bo_list_entry *lobj)
+ struct amdgpu_bo *validated)
{
- uint32_t domain = lobj->robj->allowed_domains;
+ uint32_t domain = validated->allowed_domains;
int r;
if (!p->evictable)
@@ -406,7 +406,7 @@ static bool amdgpu_cs_try_evict(struct amdgpu_cs_parser *p,
uint32_t other;
/* If we reached our current BO we can forget it */
- if (candidate == lobj)
+ if (candidate->robj == validated)
break;
other = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
@@ -439,6 +439,23 @@ static bool amdgpu_cs_try_evict(struct amdgpu_cs_parser *p,
return false;
}
+static int amdgpu_cs_validate(void *param, struct amdgpu_bo *bo)
+{
+ struct amdgpu_cs_parser *p = param;
+ int r;
+
+ do {
+ r = amdgpu_cs_bo_validate(p, bo);
+ } while (r == -ENOMEM && amdgpu_cs_try_evict(p, bo));
+ if (r)
+ return r;
+
+ if (bo->shadow)
+ r = amdgpu_cs_bo_validate(p, bo);
+
+ return r;
+}
+
static int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
struct list_head *validated)
{
@@ -466,18 +483,10 @@ static int amdgpu_cs_list_validate(struct amdgpu_cs_parser *p,
if (p->evictable == lobj)
p->evictable = NULL;
- do {
- r = amdgpu_cs_bo_validate(p, bo);
- } while (r == -ENOMEM && amdgpu_cs_try_evict(p, lobj));
+ r = amdgpu_cs_validate(p, bo);
if (r)
return r;
- if (bo->shadow) {
- r = amdgpu_cs_bo_validate(p, bo);
- if (r)
- return r;
- }
-
if (binding_userptr) {
drm_free_large(lobj->user_pages);
lobj->user_pages = NULL;
@@ -595,14 +604,19 @@ static int amdgpu_cs_parser_bos(struct amdgpu_cs_parser *p,
list_splice(&need_pages, &p->validated);
}
- amdgpu_vm_get_pt_bos(p->adev, &fpriv->vm, &duplicates);
-
p->bytes_moved_threshold = amdgpu_cs_get_threshold_for_moves(p->adev);
p->bytes_moved = 0;
p->evictable = list_last_entry(&p->validated,
struct amdgpu_bo_list_entry,
tv.head);
+ r = amdgpu_vm_validate_pt_bos(p->adev, &fpriv->vm,
+ amdgpu_cs_validate, p);
+ if (r) {
+ DRM_ERROR("amdgpu_vm_validate_pt_bos() failed.\n");
+ goto error_validate;
+ }
+
r = amdgpu_cs_list_validate(p, &duplicates);
if (r) {
DRM_ERROR("amdgpu_cs_list_validate(duplicates) failed.\n");
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index c14b853..a4f5733 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -471,6 +471,16 @@ out:
return r;
}
+static int amdgpu_gem_va_check(void *param, struct amdgpu_bo *bo)
+{
+ unsigned domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
+
+ /* if anything is swapped out don't swap it in here,
+ just abort and wait for the next CS */
+
+ return domain == AMDGPU_GEM_DOMAIN_CPU ? -ERESTARTSYS : 0;
+}
+
/**
* amdgpu_gem_va_update_vm -update the bo_va in its VM
*
@@ -481,7 +491,8 @@ out:
* vital here, so they are not reported back to userspace.
*/
static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev,
- struct amdgpu_bo_va *bo_va, uint32_t operation)
+ struct amdgpu_bo_va *bo_va,
+ uint32_t operation)
{
struct ttm_validate_buffer tv, *entry;
struct amdgpu_bo_list_entry vm_pd;
@@ -504,7 +515,6 @@ static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev,
if (r)
goto error_print;
- amdgpu_vm_get_pt_bos(adev, bo_va->vm, &duplicates);
list_for_each_entry(entry, &list, head) {
domain = amdgpu_mem_type_to_domain(entry->bo->mem.mem_type);
/* if anything is swapped out don't swap it in here,
@@ -512,13 +522,10 @@ static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev,
if (domain == AMDGPU_GEM_DOMAIN_CPU)
goto error_unreserve;
}
- list_for_each_entry(entry, &duplicates, head) {
- domain = amdgpu_mem_type_to_domain(entry->bo->mem.mem_type);
- /* if anything is swapped out don't swap it in here,
- just abort and wait for the next CS */
- if (domain == AMDGPU_GEM_DOMAIN_CPU)
- goto error_unreserve;
- }
+ r = amdgpu_vm_validate_pt_bos(adev, bo_va->vm, amdgpu_gem_va_check,
+ NULL);
+ if (r)
+ goto error_unreserve;
r = amdgpu_vm_update_page_directory(adev, bo_va->vm);
if (r)
@@ -539,8 +546,6 @@ error_print:
DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
}
-
-
int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
struct drm_file *filp)
{
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index f4b78b6..c171b16 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -116,27 +116,29 @@ void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
}
/**
- * amdgpu_vm_get_bos - add the vm BOs to a duplicates list
+ * amdgpu_vm_validate_pt_bos - validate the page table BOs
*
* @adev: amdgpu device pointer
* @vm: vm providing the BOs
- * @duplicates: head of duplicates list
+ * @validate: callback to do the validation
+ * @param: parameter for the validation callback
*
- * Add the page directory to the BO duplicates list
- * for command submission.
+ * Validate the page table BOs on command submission if neccessary.
*/
-void amdgpu_vm_get_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
- struct list_head *duplicates)
+int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
+ int (*validate)(void *p, struct amdgpu_bo *bo),
+ void *param)
{
uint64_t num_evictions;
unsigned i;
+ int r;
/* We only need to validate the page tables
* if they aren't already valid.
*/
num_evictions = atomic64_read(&adev->num_evictions);
if (num_evictions == vm->last_eviction_counter)
- return;
+ return 0;
/* add the vm page table to the list */
for (i = 0; i <= vm->max_pde_used; ++i) {
@@ -145,9 +147,12 @@ void amdgpu_vm_get_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
if (!entry->robj)
continue;
- list_add(&entry->tv.head, duplicates);
+ r = validate(param, entry->robj);
+ if (r)
+ return r;
}
+ return 0;
}
/**
--
2.5.0
