[PATCH 04/11] drm/ttm: hide

[Matthew Auld]

---
 drivers/gpu/drm/ttm/ttm_bo_vm.c |  4 ++--
 drivers/gpu/drm/ttm/ttm_tt.c    | 10 +++++-----
 include/drm/ttm/ttm_tt.h        |  1 +
 3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index f56be5bc0861..e2131c73dcb6 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -346,8 +346,8 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf,
 			} else if (unlikely(!page)) {
 				break;
 			}
-			page->index = drm_vma_node_start(&bo->base.vma_node) +
-				page_offset;
+			if (!(bo->ttm->page_flags & TTM_PAGE_FLAG_SHMEM))
+				page->index = drm_vma_node_start(&bo->base.vma_node) + page_offset;
 			pfn = page_to_pfn(page);
 		}
 
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index dae52433beeb..cc4815c1f505 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -293,7 +293,7 @@ static void ttm_tt_add_mapping(struct ttm_device *bdev, struct ttm_tt *ttm)
 {
 	pgoff_t i;
 
-	if (ttm->page_flags & TTM_PAGE_FLAG_SG)
+	if (ttm->page_flags & (TTM_PAGE_FLAG_SG | TTM_PAGE_FLAG_SHMEM))
 		return;
 
 	for (i = 0; i < ttm->num_pages; ++i)
@@ -311,7 +311,7 @@ int ttm_tt_populate(struct ttm_device *bdev,
 	if (ttm_tt_is_populated(ttm))
 		return 0;
 
-	if (!(ttm->page_flags & TTM_PAGE_FLAG_SG)) {
+	if (!(ttm->page_flags & (TTM_PAGE_FLAG_SG | TTM_PAGE_FLAG_SHMEM))) {
 		atomic_long_add(ttm->num_pages, &ttm_pages_allocated);
 		if (bdev->pool.use_dma32)
 			atomic_long_add(ttm->num_pages,
@@ -349,7 +349,7 @@ int ttm_tt_populate(struct ttm_device *bdev,
 	return 0;
 
 error:
-	if (!(ttm->page_flags & TTM_PAGE_FLAG_SG)) {
+	if (!(ttm->page_flags & (TTM_PAGE_FLAG_SG | TTM_PAGE_FLAG_SHMEM))) {
 		atomic_long_sub(ttm->num_pages, &ttm_pages_allocated);
 		if (bdev->pool.use_dma32)
 			atomic_long_sub(ttm->num_pages,
@@ -364,7 +364,7 @@ static void ttm_tt_clear_mapping(struct ttm_tt *ttm)
 	pgoff_t i;
 	struct page **page = ttm->pages;
 
-	if (ttm->page_flags & TTM_PAGE_FLAG_SG)
+	if (ttm->page_flags & (TTM_PAGE_FLAG_SG | TTM_PAGE_FLAG_SHMEM))
 		return;
 
 	for (i = 0; i < ttm->num_pages; ++i) {
@@ -384,7 +384,7 @@ void ttm_tt_unpopulate(struct ttm_device *bdev, struct ttm_tt *ttm)
 	else
 		ttm_pool_free(&bdev->pool, ttm);
 
-	if (!(ttm->page_flags & TTM_PAGE_FLAG_SG)) {
+	if (!(ttm->page_flags & (TTM_PAGE_FLAG_SG | TTM_PAGE_FLAG_SHMEM))) {
 		atomic_long_sub(ttm->num_pages, &ttm_pages_allocated);
 		if (bdev->pool.use_dma32)
 			atomic_long_sub(ttm->num_pages,
diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index 6de17c5043c7..01c1be056710 100644
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -42,6 +42,7 @@ struct ttm_operation_ctx;
 #define TTM_PAGE_FLAG_ZERO_ALLOC      (1 << 6)
 #define TTM_PAGE_FLAG_SG              (1 << 8)
 #define TTM_PAGE_FLAG_NO_RETRY	      (1 << 9)
+#define TTM_PAGE_FLAG_SHMEM	      (1 << 10)
 
 #define TTM_PAGE_FLAG_PRIV_POPULATED  (1 << 31)
 
-- 
2.26.3