1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
#ifndef __ASM_MMU_H
#define __ASM_MMU_H
#include <common.h>
#include <errno.h>
#include <malloc.h>
#include <xfuncs.h>
#include <asm/pgtable.h>
#define PMD_SECT_DEF_UNCACHED (PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | PMD_TYPE_SECT)
#define PMD_SECT_DEF_CACHED (PMD_SECT_WB | PMD_SECT_DEF_UNCACHED)
#define DMA_ADDRESS_BROKEN NULL
struct arm_memory;
static inline void mmu_enable(void)
{
}
void mmu_disable(void);
static inline void arm_create_section(unsigned long virt, unsigned long phys, int size_m,
unsigned int flags)
{
}
static inline void setup_dma_coherent(unsigned long offset)
{
}
#define dma_alloc dma_alloc
static inline void *dma_alloc(size_t size)
{
return xmemalign(64, ALIGN(size, 64));
}
#ifdef CONFIG_MMU
void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle);
void dma_free_coherent(void *mem, dma_addr_t dma_handle, size_t size);
void dma_clean_range(unsigned long, unsigned long);
void dma_flush_range(unsigned long, unsigned long);
void dma_inv_range(unsigned long, unsigned long);
void remap_range(void *_start, size_t size, uint32_t flags);
void *map_io_sections(unsigned long physaddr, void *start, size_t size);
uint32_t mmu_get_pte_cached_flags(void);
uint32_t mmu_get_pte_uncached_flags(void);
#else
static inline void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle)
{
void *ret = xmemalign(4096, size);
if (dma_handle)
*dma_handle = (dma_addr_t)ret;
return ret;
}
static inline void dma_free_coherent(void *mem, dma_addr_t dma_handle,
size_t size)
{
free(mem);
}
static inline void dma_clean_range(unsigned long s, unsigned long e)
{
}
static inline void dma_flush_range(unsigned long s, unsigned long e)
{
}
static inline void dma_inv_range(unsigned long s, unsigned long e)
{
}
static inline void remap_range(void *_start, size_t size, uint32_t flags)
{
}
static inline void *map_io_sections(unsigned long phys, void *start, size_t size)
{
return (void *)phys;
}
static inline uint32_t mmu_get_pte_cached_flags(void)
{
return 0;
}
static inline uint32_t mmu_get_pte_uncached_flags(void)
{
return 0;
}
#endif
#ifdef CONFIG_CACHE_L2X0
void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask);
#else
static inline void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
{
}
#endif
struct outer_cache_fns {
void (*inv_range)(unsigned long, unsigned long);
void (*clean_range)(unsigned long, unsigned long);
void (*flush_range)(unsigned long, unsigned long);
void (*disable)(void);
};
extern struct outer_cache_fns outer_cache;
void __dma_clean_range(unsigned long, unsigned long);
void __dma_flush_range(unsigned long, unsigned long);
void __dma_inv_range(unsigned long, unsigned long);
#endif /* __ASM_MMU_H */
|
