From: Dave Airlie <airl...@redhat.com>
This pattern is cut-n-pasted across 4 drivers, switch it to
a WARN_ON instead, as BUG_ON is considered a bad idea usually.
Signed-off-by: Dave Airlie <airl...@redhat.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 24 +++---------------------
drivers/gpu/drm/nouveau/nouveau_bo.c | 4 +---
drivers/gpu/drm/qxl/qxl_ttm.c | 12 +-----------
drivers/gpu/drm/radeon/radeon_ttm.c | 14 ++------------
include/drm/ttm/ttm_bo_driver.h | 17 +++++++++++++++++
5 files changed, 24 insertions(+), 47 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index ca568e25c41c..9592505563bf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -174,24 +174,6 @@ static int amdgpu_verify_access(struct ttm_buffer_object
*bo, struct file *filp)
filp->private_data);
}
-/**
- * amdgpu_move_null - Register memory for a buffer object
- *
- * @bo: The bo to assign the memory to
- * @new_mem: The memory to be assigned.
- *
- * Assign the memory from new_mem to the memory of the buffer object bo.
- */
-static void amdgpu_move_null(struct ttm_buffer_object *bo,
- struct ttm_resource *new_mem)
-{
- struct ttm_resource *old_mem = &bo->mem;
-
- BUG_ON(old_mem->mm_node != NULL);
- *old_mem = *new_mem;
- new_mem->mm_node = NULL;
-}
-
/**
* amdgpu_mm_node_addr - Compute the GPU relative offset of a GTT buffer.
*
@@ -676,7 +658,7 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo,
bool evict,
adev = amdgpu_ttm_adev(bo->bdev);
if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
- amdgpu_move_null(bo, new_mem);
+ ttm_bo_move_null(bo, new_mem);
return 0;
}
if ((old_mem->mem_type == TTM_PL_TT &&
@@ -684,7 +666,7 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo,
bool evict,
(old_mem->mem_type == TTM_PL_SYSTEM &&
new_mem->mem_type == TTM_PL_TT)) {
/* bind is enough */
- amdgpu_move_null(bo, new_mem);
+ ttm_bo_move_null(bo, new_mem);
return 0;
}
if (old_mem->mem_type == AMDGPU_PL_GDS ||
@@ -694,7 +676,7 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo,
bool evict,
new_mem->mem_type == AMDGPU_PL_GWS ||
new_mem->mem_type == AMDGPU_PL_OA) {
/* Nothing to save here */
- amdgpu_move_null(bo, new_mem);
+ ttm_bo_move_null(bo, new_mem);
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c
b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 41aa7ac31bd5..091f80fbbd7c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -993,9 +993,7 @@ nouveau_bo_move(struct ttm_buffer_object *bo, bool evict,
/* Fake bo copy. */
if (old_reg->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
- BUG_ON(bo->mem.mm_node != NULL);
- bo->mem = *new_reg;
- new_reg->mm_node = NULL;
+ ttm_bo_move_null(bo, new_reg);
goto out;
}
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 3ab460339145..c3530c6e46bd 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -159,16 +159,6 @@ static struct ttm_tt *qxl_ttm_tt_create(struct
ttm_buffer_object *bo,
return >t->ttm;
}
-static void qxl_move_null(struct ttm_buffer_object *bo,
- struct ttm_resource *new_mem)
-{
- struct ttm_resource *old_mem = &bo->mem;
-
- BUG_ON(old_mem->mm_node != NULL);
- *old_mem = *new_mem;
- new_mem->mm_node = NULL;
-}
-
static int qxl_bo_move(struct ttm_buffer_object *bo, bool evict,
struct ttm_operation_ctx *ctx,
struct ttm_resource *new_mem)
@@ -181,7 +171,7 @@ static int qxl_bo_move(struct ttm_buffer_object *bo, bool
evict,
return ret;
if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
- qxl_move_null(bo, new_mem);
+ ttm_bo_move_null(bo, new_mem);
return 0;
}
return ttm_bo_move_memcpy(bo, ctx, new_mem);
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c
b/drivers/gpu/drm/radeon/radeon_ttm.c
index a8d6ca88c6e3..1d3e8bb69f8e 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -148,16 +148,6 @@ static int radeon_verify_access(struct ttm_buffer_object
*bo, struct file *filp)
filp->private_data);
}
-static void radeon_move_null(struct ttm_buffer_object *bo,
- struct ttm_resource *new_mem)
-{
- struct ttm_resource *old_mem = &bo->mem;
-
- BUG_ON(old_mem->mm_node != NULL);
- *old_mem = *new_mem;
- new_mem->mm_node = NULL;
-}
-
static int radeon_move_blit(struct ttm_buffer_object *bo,
bool evict, bool no_wait_gpu,
struct ttm_resource *new_mem,
@@ -316,7 +306,7 @@ static int radeon_bo_move(struct ttm_buffer_object *bo,
bool evict,
rdev = radeon_get_rdev(bo->bdev);
if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
- radeon_move_null(bo, new_mem);
+ ttm_bo_move_null(bo, new_mem);
return 0;
}
if ((old_mem->mem_type == TTM_PL_TT &&
@@ -324,7 +314,7 @@ static int radeon_bo_move(struct ttm_buffer_object *bo,
bool evict,
(old_mem->mem_type == TTM_PL_SYSTEM &&
new_mem->mem_type == TTM_PL_TT)) {
/* bind is enough */
- radeon_move_null(bo, new_mem);
+ ttm_bo_move_null(bo, new_mem);
return 0;
}
if (!rdev->ring[radeon_copy_ring_index(rdev)].ready ||
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index a694388f7b13..ebba282667ba 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -520,6 +520,23 @@ static inline void ttm_bo_move_to_lru_tail_unlocked(struct
ttm_buffer_object *bo
spin_unlock(&ttm_bo_glob.lru_lock);
}
+/**
+ * ttm_bo_move_null = assign memory for a buffer object.
+ * @bo: The bo to assign the memory to
+ * @new_mem: The memory to be assigned.
+ *
+ * Assign the memory from new_mem to the memory of the buffer object bo.
+ */
+static inline void ttm_bo_move_null(struct ttm_buffer_object *bo,
+ struct ttm_resource *new_mem)
+{
+ struct ttm_resource *old_mem = &bo->mem;
+
+ WARN_ON(old_mem->mm_node != NULL);
+ *old_mem = *new_mem;
+ new_mem->mm_node = NULL;
+}
+
/**
* ttm_bo_unreserve
*
--
2.27.0
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