[PATCH 02/11] drm/radeon: stop re-reserving the BO in radeon_vm_bo_set_addr

Christian König deathsimple at vodafone.de
Mon Oct 13 03:41:38 PDT 2014


From: Christian König <christian.koenig at amd.com>

That's useless when all callers drop the reservation
immediately after calling the function.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/radeon/radeon_gem.c | 2 +-
 drivers/gpu/drm/radeon/radeon_kms.c | 2 --
 drivers/gpu/drm/radeon/radeon_vm.c  | 4 ++--
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index c194497..f752c7f 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -601,6 +601,7 @@ int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
 		if (bo_va->it.start) {
 			args->operation = RADEON_VA_RESULT_VA_EXIST;
 			args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE;
+			radeon_bo_unreserve(rbo);
 			goto out;
 		}
 		r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags);
@@ -616,7 +617,6 @@ int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
 		args->operation = RADEON_VA_RESULT_ERROR;
 	}
 out:
-	radeon_bo_unreserve(rbo);
 	drm_gem_object_unreference_unlocked(gobj);
 	return r;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 8309b11..85ee6f7 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -621,8 +621,6 @@ int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 						  RADEON_VA_IB_OFFSET,
 						  RADEON_VM_PAGE_READABLE |
 						  RADEON_VM_PAGE_SNOOPED);
-
-			radeon_bo_unreserve(rdev->ring_tmp_bo.bo);
 			if (r) {
 				radeon_vm_fini(rdev, vm);
 				kfree(fpriv);
diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
index 45987a4..9c9aa62 100644
--- a/drivers/gpu/drm/radeon/radeon_vm.c
+++ b/drivers/gpu/drm/radeon/radeon_vm.c
@@ -450,7 +450,7 @@ error:
  * Validate and set the offset requested within the vm address space.
  * Returns 0 for success, error for failure.
  *
- * Object has to be reserved!
+ * Object has to be reserved and gets unreserved by this function!
  */
 int radeon_vm_bo_set_addr(struct radeon_device *rdev,
 			  struct radeon_bo_va *bo_va,
@@ -576,7 +576,7 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
 	}
 
 	mutex_unlock(&vm->mutex);
-	return radeon_bo_reserve(bo_va->bo, false);
+	return 0;
 }
 
 /**
-- 
1.9.1



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