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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 /arch/arm/include/asm/mach/map.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--arch/arm/include/asm/mach/map.h65
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
new file mode 100644
index 000000000..2b8970d8e
--- /dev/null
+++ b/arch/arm/include/asm/mach/map.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * arch/arm/include/asm/map.h
+ *
+ * Copyright (C) 1999-2000 Russell King
+ *
+ * Page table mapping constructs and function prototypes
+ */
+#ifndef __ASM_MACH_MAP_H
+#define __ASM_MACH_MAP_H
+
+#include <asm/io.h>
+
+struct map_desc {
+ unsigned long virtual;
+ unsigned long pfn;
+ unsigned long length;
+ unsigned int type;
+};
+
+/* types 0-3 are defined in asm/io.h */
+enum {
+ MT_UNCACHED = 4,
+ MT_CACHECLEAN,
+ MT_MINICLEAN,
+ MT_LOW_VECTORS,
+ MT_HIGH_VECTORS,
+ MT_MEMORY_RWX,
+ MT_MEMORY_RW,
+ MT_MEMORY_RO,
+ MT_ROM,
+ MT_MEMORY_RWX_NONCACHED,
+ MT_MEMORY_RW_DTCM,
+ MT_MEMORY_RWX_ITCM,
+ MT_MEMORY_RW_SO,
+ MT_MEMORY_DMA_READY,
+};
+
+#ifdef CONFIG_MMU
+extern void iotable_init(struct map_desc *, int);
+extern void vm_reserve_area_early(unsigned long addr, unsigned long size,
+ void *caller);
+extern void create_mapping_late(struct mm_struct *mm, struct map_desc *md,
+ bool ng);
+
+#ifdef CONFIG_DEBUG_LL
+extern void debug_ll_addr(unsigned long *paddr, unsigned long *vaddr);
+extern void debug_ll_io_init(void);
+#else
+static inline void debug_ll_io_init(void) {}
+#endif
+
+struct mem_type;
+extern const struct mem_type *get_mem_type(unsigned int type);
+/*
+ * external interface to remap single page with appropriate type
+ */
+extern int ioremap_page(unsigned long virt, unsigned long phys,
+ const struct mem_type *mtype);
+#else
+#define iotable_init(map,num) do { } while (0)
+#define vm_reserve_area_early(a,s,c) do { } while (0)
+#endif
+
+#endif