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authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/include/lmb.h
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/include/lmb.h')
-rw-r--r--roms/u-boot/include/lmb.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/roms/u-boot/include/lmb.h b/roms/u-boot/include/lmb.h
new file mode 100644
index 000000000..541e17093
--- /dev/null
+++ b/roms/u-boot/include/lmb.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+#ifndef _LINUX_LMB_H
+#define _LINUX_LMB_H
+#ifdef __KERNEL__
+
+#include <asm/types.h>
+#include <asm/u-boot.h>
+
+/*
+ * Logical memory blocks.
+ *
+ * Copyright (C) 2001 Peter Bergner, IBM Corp.
+ */
+
+/**
+ * struct lmb_property - Description of one region.
+ *
+ * @base: Base address of the region.
+ * @size: Size of the region
+ */
+struct lmb_property {
+ phys_addr_t base;
+ phys_size_t size;
+};
+
+/**
+ * struct lmb_region - Description of a set of region.
+ *
+ * @cnt: Number of regions.
+ * @max: Size of the region array, max value of cnt.
+ * @region: Array of the region properties
+ */
+struct lmb_region {
+ unsigned long cnt;
+ unsigned long max;
+#if IS_ENABLED(CONFIG_LMB_USE_MAX_REGIONS)
+ struct lmb_property region[CONFIG_LMB_MAX_REGIONS];
+#else
+ struct lmb_property *region;
+#endif
+};
+
+/**
+ * struct lmb - Logical memory block handle.
+ *
+ * Clients provide storage for Logical memory block (lmb) handles.
+ * The content of the structure is managed by the lmb library.
+ * A lmb struct is initialized by lmb_init() functions.
+ * The lmb struct is passed to all other lmb APIs.
+ *
+ * @memory: Description of memory regions.
+ * @reserved: Description of reserved regions.
+ * @memory_regions: Array of the memory regions (statically allocated)
+ * @reserved_regions: Array of the reserved regions (statically allocated)
+ */
+struct lmb {
+ struct lmb_region memory;
+ struct lmb_region reserved;
+#if !IS_ENABLED(CONFIG_LMB_USE_MAX_REGIONS)
+ struct lmb_property memory_regions[CONFIG_LMB_MEMORY_REGIONS];
+ struct lmb_property reserved_regions[CONFIG_LMB_RESERVED_REGIONS];
+#endif
+};
+
+extern void lmb_init(struct lmb *lmb);
+extern void lmb_init_and_reserve(struct lmb *lmb, struct bd_info *bd,
+ void *fdt_blob);
+extern void lmb_init_and_reserve_range(struct lmb *lmb, phys_addr_t base,
+ phys_size_t size, void *fdt_blob);
+extern long lmb_add(struct lmb *lmb, phys_addr_t base, phys_size_t size);
+extern long lmb_reserve(struct lmb *lmb, phys_addr_t base, phys_size_t size);
+extern phys_addr_t lmb_alloc(struct lmb *lmb, phys_size_t size, ulong align);
+extern phys_addr_t lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align,
+ phys_addr_t max_addr);
+extern phys_addr_t __lmb_alloc_base(struct lmb *lmb, phys_size_t size, ulong align,
+ phys_addr_t max_addr);
+extern phys_addr_t lmb_alloc_addr(struct lmb *lmb, phys_addr_t base,
+ phys_size_t size);
+extern phys_size_t lmb_get_free_size(struct lmb *lmb, phys_addr_t addr);
+extern int lmb_is_reserved(struct lmb *lmb, phys_addr_t addr);
+extern long lmb_free(struct lmb *lmb, phys_addr_t base, phys_size_t size);
+
+extern void lmb_dump_all(struct lmb *lmb);
+extern void lmb_dump_all_force(struct lmb *lmb);
+
+static inline phys_size_t
+lmb_size_bytes(struct lmb_region *type, unsigned long region_nr)
+{
+ return type->region[region_nr].size;
+}
+
+void board_lmb_reserve(struct lmb *lmb);
+void arch_lmb_reserve(struct lmb *lmb);
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_LMB_H */