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Subject[PATCH 1/2] drm/virtio: add virtio_gpu_object_detach() function
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The new function balances virtio_gpu_object_attach().

Also make virtio_gpu_cmd_resource_inval_backing() static and switch
call sites to the new virtio_gpu_object_attach() function.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/gpu/drm/virtio/virtgpu_drv.h | 4 ++--
drivers/gpu/drm/virtio/virtgpu_fb.c | 2 +-
drivers/gpu/drm/virtio/virtgpu_ttm.c | 3 +--
drivers/gpu/drm/virtio/virtgpu_vq.c | 10 ++++++++--
4 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 65605e207b..cbbff01077 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -276,13 +276,13 @@ int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
struct virtio_gpu_object *obj,
uint32_t resource_id,
struct virtio_gpu_fence **fence);
+void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_object *obj);
int virtio_gpu_attach_status_page(struct virtio_gpu_device *vgdev);
int virtio_gpu_detach_status_page(struct virtio_gpu_device *vgdev);
void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
struct virtio_gpu_output *output);
int virtio_gpu_cmd_get_display_info(struct virtio_gpu_device *vgdev);
-void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev,
- uint32_t resource_id);
int virtio_gpu_cmd_get_capset_info(struct virtio_gpu_device *vgdev, int idx);
int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
int idx, int version,
diff --git a/drivers/gpu/drm/virtio/virtgpu_fb.c b/drivers/gpu/drm/virtio/virtgpu_fb.c
index a121b1c795..b5cebc9a17 100644
--- a/drivers/gpu/drm/virtio/virtgpu_fb.c
+++ b/drivers/gpu/drm/virtio/virtgpu_fb.c
@@ -291,7 +291,7 @@ static int virtio_gpufb_create(struct drm_fb_helper *helper,
return 0;

err_fb_alloc:
- virtio_gpu_cmd_resource_inval_backing(vgdev, resid);
+ virtio_gpu_object_detach(vgdev, obj);
err_obj_attach:
err_obj_vmap:
virtio_gpu_gem_free_object(&obj->gem_base);
diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c
index 11f8ae5b53..3ea115e026 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ttm.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c
@@ -377,8 +377,7 @@ static void virtio_gpu_bo_move_notify(struct ttm_buffer_object *tbo,

if (!new_mem || (new_mem->placement & TTM_PL_FLAG_SYSTEM)) {
if (bo->hw_res_handle)
- virtio_gpu_cmd_resource_inval_backing(vgdev,
- bo->hw_res_handle);
+ virtio_gpu_object_detach(vgdev, bo);

} else if (new_mem->placement & TTM_PL_FLAG_TT) {
if (bo->hw_res_handle) {
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 020070d483..af24e91267 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -423,8 +423,8 @@ void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
}

-void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev,
- uint32_t resource_id)
+static void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev,
+ uint32_t resource_id)
{
struct virtio_gpu_resource_detach_backing *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
@@ -882,6 +882,12 @@ int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
return 0;
}

+void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_object *obj)
+{
+ virtio_gpu_cmd_resource_inval_backing(vgdev, obj->hw_res_handle);
+}
+
void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
struct virtio_gpu_output *output)
{
--
2.9.3
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