drm/ttm: flip tt destroy ordering.

Call the driver first and have it call the common code cleanup.

This is useful later to fix unbind.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200917043040.146575-3-airlied@gmail.com

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 2851cf3..dbe3f90 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1267,6 +1267,7 @@ static void amdgpu_ttm_backend_destroy(struct ttm_bo_device *bdev,
 {
        struct amdgpu_ttm_tt *gtt = (void *)ttm;
 
+       ttm_tt_destroy_common(bdev, ttm);
        if (gtt->usertask)
                put_task_struct(gtt->usertask);
 

diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index f963215..50cad0e 100644 (file)
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -922,6 +922,7 @@ static const struct drm_gem_object_funcs drm_gem_vram_object_funcs = {
 
 static void bo_driver_ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *tt)
 {
+       ttm_tt_destroy_common(bdev, tt);
        ttm_tt_fini(tt);
        kfree(tt);
 }

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 616d884..b239381 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -1372,6 +1372,7 @@ nouveau_ttm_tt_destroy(struct ttm_bo_device *bdev,
 #if IS_ENABLED(CONFIG_AGP)
        struct nouveau_drm *drm = nouveau_bdev(bdev);
        if (drm->agp.bridge) {
+               ttm_tt_destroy_common(bdev, ttm);
                ttm_agp_destroy(ttm);
                return;
        }

diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
index 21fb927..0dfaa6f 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -20,6 +20,7 @@ nouveau_sgdma_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
        struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 
        if (ttm) {
+               ttm_tt_destroy_common(bdev, ttm);
                ttm_dma_tt_fini(&nvbe->ttm);
                kfree(nvbe);
        }

diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index bf3b091..fd691ff 100644 (file)
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -130,6 +130,7 @@ static void qxl_ttm_backend_destroy(struct ttm_bo_device *bdev,
 {
        struct qxl_ttm_tt *gtt = (void *)ttm;
 
+       ttm_tt_destroy_common(bdev, ttm);
        ttm_tt_fini(&gtt->ttm);
        kfree(gtt);
 }

diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index fc8bbca..76e24c6 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -576,6 +576,8 @@ static void radeon_ttm_backend_destroy(struct ttm_bo_device *bdev, struct ttm_tt
 {
        struct radeon_ttm_tt *gtt = (void *)ttm;
 
+       ttm_tt_destroy_common(bdev, ttm);
+
        ttm_dma_tt_fini(&gtt->ttm);
        kfree(gtt);
 }
@@ -755,6 +757,7 @@ static void radeon_ttm_tt_destroy(struct ttm_bo_device *bdev,
        struct radeon_device *rdev = radeon_get_rdev(bdev);
 
        if (rdev->flags & RADEON_IS_AGP) {
+               ttm_tt_destroy_common(bdev, ttm);
                ttm_agp_destroy(ttm);
                return;
        }

diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index a4f0296..f43fa69 100644 (file)
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -207,7 +207,7 @@ int ttm_tt_set_placement_caching(struct ttm_tt *ttm, uint32_t placement)
 }
 EXPORT_SYMBOL(ttm_tt_set_placement_caching);
 
-void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
+void ttm_tt_destroy_common(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
 {
        ttm_tt_unpopulate(bdev, ttm);
 
@@ -216,6 +216,11 @@ void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
                fput(ttm->swap_storage);
 
        ttm->swap_storage = NULL;
+}
+EXPORT_SYMBOL(ttm_tt_destroy_common);
+
+void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
+{
        bdev->driver->ttm_tt_destroy(bdev, ttm);
 }
 

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
index 01146b2..d464261 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
@@ -636,6 +636,7 @@ static void vmw_ttm_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm)
        struct vmw_ttm_tt *vmw_be =
                container_of(ttm, struct vmw_ttm_tt, dma_ttm.ttm);
 
+       ttm_tt_destroy_common(bdev, ttm);
        vmw_ttm_unmap_dma(vmw_be);
        if (vmw_be->dev_priv->map_mode == vmw_dma_alloc_coherent)
                ttm_dma_tt_fini(&vmw_be->dma_ttm);

diff --git a/include/drm/ttm/ttm_tt.h b/include/drm/ttm/ttm_tt.h
index 4e906e3..75208c0 100644 (file)
--- a/include/drm/ttm/ttm_tt.h
+++ b/include/drm/ttm/ttm_tt.h
@@ -155,6 +155,13 @@ void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma);
  */
 void ttm_tt_destroy(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
 
+/**
+ * ttm_tt_destroy_common:
+ *
+ * Called from driver to destroy common path.
+ */
+void ttm_tt_destroy_common(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
+
 /**
  * ttm_tt_swapin:
  *