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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /include/drm/ttm/ttm_range_manager.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/drm/ttm/ttm_range_manager.h')
-rw-r--r--include/drm/ttm/ttm_range_manager.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_range_manager.h b/include/drm/ttm/ttm_range_manager.h
new file mode 100644
index 000000000..7963b957e
--- /dev/null
+++ b/include/drm/ttm/ttm_range_manager.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+
+#ifndef _TTM_RANGE_MANAGER_H_
+#define _TTM_RANGE_MANAGER_H_
+
+#include <drm/ttm/ttm_resource.h>
+#include <drm/ttm/ttm_device.h>
+#include <drm/drm_mm.h>
+
+/**
+ * struct ttm_range_mgr_node
+ *
+ * @base: base clase we extend
+ * @mm_nodes: MM nodes, usually 1
+ *
+ * Extending the ttm_resource object to manage an address space allocation with
+ * one or more drm_mm_nodes.
+ */
+struct ttm_range_mgr_node {
+ struct ttm_resource base;
+ struct drm_mm_node mm_nodes[];
+};
+
+/**
+ * to_ttm_range_mgr_node
+ *
+ * @res: the resource to upcast
+ *
+ * Upcast the ttm_resource object into a ttm_range_mgr_node object.
+ */
+static inline struct ttm_range_mgr_node *
+to_ttm_range_mgr_node(struct ttm_resource *res)
+{
+ return container_of(res, struct ttm_range_mgr_node, base);
+}
+
+int ttm_range_man_init_nocheck(struct ttm_device *bdev,
+ unsigned type, bool use_tt,
+ unsigned long p_size);
+int ttm_range_man_fini_nocheck(struct ttm_device *bdev,
+ unsigned type);
+static __always_inline int ttm_range_man_init(struct ttm_device *bdev,
+ unsigned int type, bool use_tt,
+ unsigned long p_size)
+{
+ BUILD_BUG_ON(__builtin_constant_p(type) && type >= TTM_NUM_MEM_TYPES);
+ return ttm_range_man_init_nocheck(bdev, type, use_tt, p_size);
+}
+
+static __always_inline int ttm_range_man_fini(struct ttm_device *bdev,
+ unsigned int type)
+{
+ BUILD_BUG_ON(__builtin_constant_p(type) && type >= TTM_NUM_MEM_TYPES);
+ return ttm_range_man_fini_nocheck(bdev, type);
+}
+#endif