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git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/blob - arch/csky/mm/cachev2.c
1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
4 #include <linux/spinlock.h>
7 #include <asm/barrier.h>
9 inline void dcache_wb_line(unsigned long start
)
11 asm volatile("dcache.cval1 %0\n"::"r"(start
):"memory");
15 void icache_inv_range(unsigned long start
, unsigned long end
)
17 unsigned long i
= start
& ~(L1_CACHE_BYTES
- 1);
19 for (; i
< end
; i
+= L1_CACHE_BYTES
)
20 asm volatile("icache.iva %0\n"::"r"(i
):"memory");
24 void icache_inv_all(void)
26 asm volatile("icache.ialls\n":::"memory");
30 void dcache_wb_range(unsigned long start
, unsigned long end
)
32 unsigned long i
= start
& ~(L1_CACHE_BYTES
- 1);
34 for (; i
< end
; i
+= L1_CACHE_BYTES
)
35 asm volatile("dcache.cval1 %0\n"::"r"(i
):"memory");
39 void dcache_inv_range(unsigned long start
, unsigned long end
)
41 unsigned long i
= start
& ~(L1_CACHE_BYTES
- 1);
43 for (; i
< end
; i
+= L1_CACHE_BYTES
)
44 asm volatile("dcache.civa %0\n"::"r"(i
):"memory");
48 void cache_wbinv_range(unsigned long start
, unsigned long end
)
50 unsigned long i
= start
& ~(L1_CACHE_BYTES
- 1);
52 for (; i
< end
; i
+= L1_CACHE_BYTES
)
53 asm volatile("dcache.cval1 %0\n"::"r"(i
):"memory");
56 i
= start
& ~(L1_CACHE_BYTES
- 1);
57 for (; i
< end
; i
+= L1_CACHE_BYTES
)
58 asm volatile("icache.iva %0\n"::"r"(i
):"memory");
61 EXPORT_SYMBOL(cache_wbinv_range
);
63 void dma_wbinv_range(unsigned long start
, unsigned long end
)
65 unsigned long i
= start
& ~(L1_CACHE_BYTES
- 1);
67 for (; i
< end
; i
+= L1_CACHE_BYTES
)
68 asm volatile("dcache.civa %0\n"::"r"(i
):"memory");
72 void dma_inv_range(unsigned long start
, unsigned long end
)
74 unsigned long i
= start
& ~(L1_CACHE_BYTES
- 1);
76 for (; i
< end
; i
+= L1_CACHE_BYTES
)
77 asm volatile("dcache.iva %0\n"::"r"(i
):"memory");
81 void dma_wb_range(unsigned long start
, unsigned long end
)
83 unsigned long i
= start
& ~(L1_CACHE_BYTES
- 1);
85 for (; i
< end
; i
+= L1_CACHE_BYTES
)
86 asm volatile("dcache.cva %0\n"::"r"(i
):"memory");