aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mm/cache-v4.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mm/cache-v4.S')
-rw-r--r--arch/arm/mm/cache-v4.S43
1 files changed, 20 insertions, 23 deletions
diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S
index 5c7da3e372e9..4810f7e3e813 100644
--- a/arch/arm/mm/cache-v4.S
+++ b/arch/arm/mm/cache-v4.S
@@ -94,20 +94,6 @@ ENTRY(v4_flush_kern_dcache_area)
94 /* FALLTHROUGH */ 94 /* FALLTHROUGH */
95 95
96/* 96/*
97 * dma_inv_range(start, end)
98 *
99 * Invalidate (discard) the specified virtual address range.
100 * May not write back any entries. If 'start' or 'end'
101 * are not cache line aligned, those lines must be written
102 * back.
103 *
104 * - start - virtual start address
105 * - end - virtual end address
106 */
107ENTRY(v4_dma_inv_range)
108 /* FALLTHROUGH */
109
110/*
111 * dma_flush_range(start, end) 97 * dma_flush_range(start, end)
112 * 98 *
113 * Clean and invalidate the specified virtual address range. 99 * Clean and invalidate the specified virtual address range.
@@ -120,18 +106,29 @@ ENTRY(v4_dma_flush_range)
120 mov r0, #0 106 mov r0, #0
121 mcr p15, 0, r0, c7, c7, 0 @ flush ID cache 107 mcr p15, 0, r0, c7, c7, 0 @ flush ID cache
122#endif 108#endif
109 mov pc, lr
110
111/*
112 * dma_unmap_area(start, size, dir)
113 * - start - kernel virtual start address
114 * - size - size of region
115 * - dir - DMA direction
116 */
117ENTRY(v4_dma_unmap_area)
118 teq r2, #DMA_TO_DEVICE
119 bne v4_dma_flush_range
123 /* FALLTHROUGH */ 120 /* FALLTHROUGH */
124 121
125/* 122/*
126 * dma_clean_range(start, end) 123 * dma_map_area(start, size, dir)
127 * 124 * - start - kernel virtual start address
128 * Clean (write back) the specified virtual address range. 125 * - size - size of region
129 * 126 * - dir - DMA direction
130 * - start - virtual start address
131 * - end - virtual end address
132 */ 127 */
133ENTRY(v4_dma_clean_range) 128ENTRY(v4_dma_map_area)
134 mov pc, lr 129 mov pc, lr
130ENDPROC(v4_dma_unmap_area)
131ENDPROC(v4_dma_map_area)
135 132
136 __INITDATA 133 __INITDATA
137 134
@@ -143,7 +140,7 @@ ENTRY(v4_cache_fns)
143 .long v4_coherent_kern_range 140 .long v4_coherent_kern_range
144 .long v4_coherent_user_range 141 .long v4_coherent_user_range
145 .long v4_flush_kern_dcache_area 142 .long v4_flush_kern_dcache_area
146 .long v4_dma_inv_range 143 .long v4_dma_map_area
147 .long v4_dma_clean_range 144 .long v4_dma_unmap_area
148 .long v4_dma_flush_range 145 .long v4_dma_flush_range
149 .size v4_cache_fns, . - v4_cache_fns 146 .size v4_cache_fns, . - v4_cache_fns