drm/r600: avoid assigning vb twice in blit code

There is no need to assign vb before you know that space is available.

[agd5f: adapted for kernel tree.]

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/r600_blit.c b/drivers/gpu/drm/radeon/r600_blit.c
index d988eec..dec5010 100644 (file)
--- a/drivers/gpu/drm/radeon/r600_blit.c
+++ b/drivers/gpu/drm/radeon/r600_blit.c
@@ -582,8 +582,6 @@ r600_blit_copy(struct drm_device *dev,
        u64 vb_addr;
        u32 *vb;
 
-       vb = r600_nomm_get_vb_ptr(dev);
-
        if ((size_bytes & 3) || (src_gpu_addr & 3) || (dst_gpu_addr & 3)) {
                max_bytes = 8192;
 
@@ -619,8 +617,8 @@ r600_blit_copy(struct drm_device *dev,
                                if (!dev_priv->blit_vb)
                                        return;
                                set_shaders(dev);
-                               vb = r600_nomm_get_vb_ptr(dev);
                        }
+                       vb = r600_nomm_get_vb_ptr(dev);
 
                        vb[0] = i2f(dst_x);
                        vb[1] = 0;
@@ -708,8 +706,8 @@ r600_blit_copy(struct drm_device *dev,
                                        return;
 
                                set_shaders(dev);
-                               vb = r600_nomm_get_vb_ptr(dev);
                        }
+                       vb = r600_nomm_get_vb_ptr(dev);
 
                        vb[0] = i2f(dst_x / 4);
                        vb[1] = 0;
@@ -777,8 +775,6 @@ r600_blit_swap(struct drm_device *dev,
        u64 vb_addr;
        u32 *vb;
 
-       vb = r600_nomm_get_vb_ptr(dev);
-
        if ((dev_priv->blit_vb->used + 48) > dev_priv->blit_vb->total) {
 
                r600_nomm_put_vb(dev);
@@ -787,8 +783,8 @@ r600_blit_swap(struct drm_device *dev,
                        return;
 
                set_shaders(dev);
-               vb = r600_nomm_get_vb_ptr(dev);
        }
+       vb = r600_nomm_get_vb_ptr(dev);
 
        if (cpp == 4) {
                cb_format = COLOR_8_8_8_8;

diff --git a/drivers/gpu/drm/radeon/r600_blit_kms.c b/drivers/gpu/drm/radeon/r600_blit_kms.c
index acae33e..93108bb 100644 (file)
--- a/drivers/gpu/drm/radeon/r600_blit_kms.c
+++ b/drivers/gpu/drm/radeon/r600_blit_kms.c
@@ -610,7 +610,6 @@ void r600_kms_blit_copy(struct radeon_device *rdev,
 
        DRM_DEBUG("emitting copy %16llx %16llx %d %d\n", src_gpu_addr, dst_gpu_addr,
                  size_bytes, rdev->r600_blit.vb_used);
-       vb = (u32 *)(rdev->r600_blit.vb_ib->ptr + rdev->r600_blit.vb_used);
        if ((size_bytes & 3) || (src_gpu_addr & 3) || (dst_gpu_addr & 3)) {
                max_bytes = 8192;
 
@@ -653,6 +652,7 @@ void r600_kms_blit_copy(struct radeon_device *rdev,
                                vb = r600_nomm_get_vb_ptr(dev);
 #endif
                        }
+                       vb = (u32 *)(rdev->r600_blit.vb_ib->ptr + rdev->r600_blit.vb_used);
 
                        vb[0] = i2f(dst_x);
                        vb[1] = 0;
@@ -747,6 +747,7 @@ void r600_kms_blit_copy(struct radeon_device *rdev,
                                vb = r600_nomm_get_vb_ptr(dev);
                        }
 #endif
+                       vb = (u32 *)(rdev->r600_blit.vb_ib->ptr + rdev->r600_blit.vb_used);
 
                        vb[0] = i2f(dst_x / 4);
                        vb[1] = 0;