drm/ast: Use drm_gem_vram_{vmap,vunmap}() to map cursor source BO

The VRAM helper's vmap interfaces provide pinning and mapping of BO
memory. This patch replaces the respective code in ast cursor handling.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190911120352.20084-3-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index b0fa051..c191e8e 100644 (file)
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -1167,26 +1167,22 @@ static int ast_cursor_set(struct drm_crtc *crtc,
                return -ENOENT;
        }
        gbo = drm_gem_vram_of_gem(obj);
-
-       ret = drm_gem_vram_pin(gbo, 0);
-       if (ret)
-               goto err_drm_gem_object_put_unlocked;
-       src = drm_gem_vram_kmap(gbo, true, NULL);
+       src = drm_gem_vram_vmap(gbo);
        if (IS_ERR(src)) {
                ret = PTR_ERR(src);
-               goto err_drm_gem_vram_unpin;
+               goto err_drm_gem_object_put_unlocked;
        }
 
        dst = drm_gem_vram_kmap(drm_gem_vram_of_gem(ast->cursor_cache),
                                false, NULL);
        if (IS_ERR(dst)) {
                ret = PTR_ERR(dst);
-               goto err_drm_gem_vram_kunmap;
+               goto err_drm_gem_vram_vunmap;
        }
        dst_gpu = drm_gem_vram_offset(drm_gem_vram_of_gem(ast->cursor_cache));
        if (dst_gpu < 0) {
                ret = (int)dst_gpu;
-               goto err_drm_gem_vram_kunmap;
+               goto err_drm_gem_vram_vunmap;
        }
 
        dst += (AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE)*ast->next_cursor;
@@ -1221,16 +1217,13 @@ static int ast_cursor_set(struct drm_crtc *crtc,
 
        ast_show_cursor(crtc);
 
-       drm_gem_vram_kunmap(gbo);
-       drm_gem_vram_unpin(gbo);
+       drm_gem_vram_vunmap(gbo, src);
        drm_gem_object_put_unlocked(obj);
 
        return 0;
 
-err_drm_gem_vram_kunmap:
-       drm_gem_vram_kunmap(gbo);
-err_drm_gem_vram_unpin:
-       drm_gem_vram_unpin(gbo);
+err_drm_gem_vram_vunmap:
+       drm_gem_vram_vunmap(gbo, src);
 err_drm_gem_object_put_unlocked:
        drm_gem_object_put_unlocked(obj);
        return ret;