drm/ast: Rename ast_ttm.c to ast_mm.c

Although built upon TTM, the ast driver's VRAM MM helper does not
expose TTM to its users. Rename the related ast file to ast_mm.c.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-3-tzimmermann@suse.de

1 files changed, 68 insertions, 0 deletions

diff --git a/drivers/gpu/drm/ast/ast_mm.c b/drivers/gpu/drm/ast/ast_mm.c
new file mode 100644
index 000000000000..9c3788a4c1c5
--- /dev/null
+++ b/drivers/gpu/drm/ast/ast_mm.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/*
+ * Authors: Dave Airlie <airlied@redhat.com>
+ */
+
+#include <linux/pci.h>
+
+#include <drm/drm_print.h>
+#include <drm/drm_gem_vram_helper.h>
+
+#include "ast_drv.h"
+
+int ast_mm_init(struct ast_private *ast)
+{
+	struct drm_vram_mm *vmm;
+	int ret;
+	struct drm_device *dev = ast->dev;
+
+	vmm = drm_vram_helper_alloc_mm(
+		dev, pci_resource_start(dev->pdev, 0),
+		ast->vram_size);
+	if (IS_ERR(vmm)) {
+		ret = PTR_ERR(vmm);
+		drm_err(dev, "Error initializing VRAM MM; %d\n", ret);
+		return ret;
+	}
+
+	arch_io_reserve_memtype_wc(pci_resource_start(dev->pdev, 0),
+				   pci_resource_len(dev->pdev, 0));
+	ast->fb_mtrr = arch_phys_wc_add(pci_resource_start(dev->pdev, 0),
+					pci_resource_len(dev->pdev, 0));
+
+	return 0;
+}
+
+void ast_mm_fini(struct ast_private *ast)
+{
+	struct drm_device *dev = ast->dev;
+
+	drm_vram_helper_release_mm(dev);
+
+	arch_phys_wc_del(ast->fb_mtrr);
+	arch_io_free_memtype_wc(pci_resource_start(dev->pdev, 0),
+				pci_resource_len(dev->pdev, 0));
+}