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Subject[PATCH 04/10] nouveau: factor out dmem fence completion
Date
Factor out the end of fencing logic from the two migration routines.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
---
drivers/gpu/drm/nouveau/nouveau_dmem.c | 33 ++++++++++++--------------
1 file changed, 15 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_dmem.c b/drivers/gpu/drm/nouveau/nouveau_dmem.c
index d469bc334438..21052a4aaf69 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dmem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dmem.c
@@ -133,6 +133,19 @@ static void nouveau_dmem_page_free(struct page *page)
spin_unlock(&chunk->lock);
}

+static void nouveau_dmem_fence_done(struct nouveau_fence **fence)
+{
+ if (fence) {
+ nouveau_fence_wait(*fence, true, false);
+ nouveau_fence_unref(fence);
+ } else {
+ /*
+ * FIXME wait for channel to be IDLE before calling finalizing
+ * the hmem object.
+ */
+ }
+}
+
static void
nouveau_dmem_fault_alloc_and_copy(struct vm_area_struct *vma,
const unsigned long *src_pfns,
@@ -236,15 +249,7 @@ nouveau_dmem_fault_finalize_and_map(struct nouveau_dmem_fault *fault)
{
struct nouveau_drm *drm = fault->drm;

- if (fault->fence) {
- nouveau_fence_wait(fault->fence, true, false);
- nouveau_fence_unref(&fault->fence);
- } else {
- /*
- * FIXME wait for channel to be IDLE before calling finalizing
- * the hmem object below (nouveau_migrate_hmem_fini()).
- */
- }
+ nouveau_dmem_fence_done(&fault->fence);

while (fault->npages--) {
dma_unmap_page(drm->dev->dev, fault->dma[fault->npages],
@@ -748,15 +753,7 @@ nouveau_dmem_migrate_finalize_and_map(struct nouveau_migrate *migrate)
{
struct nouveau_drm *drm = migrate->drm;

- if (migrate->fence) {
- nouveau_fence_wait(migrate->fence, true, false);
- nouveau_fence_unref(&migrate->fence);
- } else {
- /*
- * FIXME wait for channel to be IDLE before finalizing
- * the hmem object below (nouveau_migrate_hmem_fini()) ?
- */
- }
+ nouveau_dmem_fence_done(&migrate->fence);

while (migrate->dma_nr--) {
dma_unmap_page(drm->dev->dev, migrate->dma[migrate->dma_nr],
--
2.20.1
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