1 // SPDX-License-Identifier: GPL-2.0
9  * Write back the dirty D-caches, but not invalidate them.
16 	reg_size_t aligned_start, v, cnt, end;  in sh4__flush_wback_region()  local
19 	v = aligned_start & ~(L1_CACHE_BYTES-1);  in sh4__flush_wback_region()
20 	end = (aligned_start + size + L1_CACHE_BYTES-1)  in sh4__flush_wback_region()
21 		& ~(L1_CACHE_BYTES-1);  in sh4__flush_wback_region()
22 	cnt = (end - v) / L1_CACHE_BYTES;  in sh4__flush_wback_region()
24 	while (cnt >= 8) {  in sh4__flush_wback_region()
25 		__ocbwb(v); v += L1_CACHE_BYTES;  in sh4__flush_wback_region()
26 		__ocbwb(v); v += L1_CACHE_BYTES;  in sh4__flush_wback_region()
27 		__ocbwb(v); v += L1_CACHE_BYTES;  in sh4__flush_wback_region()
28 		__ocbwb(v); v += L1_CACHE_BYTES;  in sh4__flush_wback_region()
29 		__ocbwb(v); v += L1_CACHE_BYTES;  in sh4__flush_wback_region()
30 		__ocbwb(v); v += L1_CACHE_BYTES;  in sh4__flush_wback_region()
31 		__ocbwb(v); v += L1_CACHE_BYTES;  in sh4__flush_wback_region()
32 		__ocbwb(v); v += L1_CACHE_BYTES;  in sh4__flush_wback_region()
33 		cnt -= 8;  in sh4__flush_wback_region()
37 		__ocbwb(v); v += L1_CACHE_BYTES;  in sh4__flush_wback_region()
38 		cnt--;  in sh4__flush_wback_region()
43  * Write back the dirty D-caches and invalidate them.
50 	reg_size_t aligned_start, v, cnt, end;  in sh4__flush_purge_region()  local
53 	v = aligned_start & ~(L1_CACHE_BYTES-1);  in sh4__flush_purge_region()
54 	end = (aligned_start + size + L1_CACHE_BYTES-1)  in sh4__flush_purge_region()
55 		& ~(L1_CACHE_BYTES-1);  in sh4__flush_purge_region()
56 	cnt = (end - v) / L1_CACHE_BYTES;  in sh4__flush_purge_region()
58 	while (cnt >= 8) {  in sh4__flush_purge_region()
59 		__ocbp(v); v += L1_CACHE_BYTES;  in sh4__flush_purge_region()
60 		__ocbp(v); v += L1_CACHE_BYTES;  in sh4__flush_purge_region()
61 		__ocbp(v); v += L1_CACHE_BYTES;  in sh4__flush_purge_region()
62 		__ocbp(v); v += L1_CACHE_BYTES;  in sh4__flush_purge_region()
63 		__ocbp(v); v += L1_CACHE_BYTES;  in sh4__flush_purge_region()
64 		__ocbp(v); v += L1_CACHE_BYTES;  in sh4__flush_purge_region()
65 		__ocbp(v); v += L1_CACHE_BYTES;  in sh4__flush_purge_region()
66 		__ocbp(v); v += L1_CACHE_BYTES;  in sh4__flush_purge_region()
67 		cnt -= 8;  in sh4__flush_purge_region()
70 		__ocbp(v); v += L1_CACHE_BYTES;  in sh4__flush_purge_region()
71 		cnt--;  in sh4__flush_purge_region()
76  * No write back please
80 	reg_size_t aligned_start, v, cnt, end;  in sh4__flush_invalidate_region()  local
83 	v = aligned_start & ~(L1_CACHE_BYTES-1);  in sh4__flush_invalidate_region()
84 	end = (aligned_start + size + L1_CACHE_BYTES-1)  in sh4__flush_invalidate_region()
85 		& ~(L1_CACHE_BYTES-1);  in sh4__flush_invalidate_region()
86 	cnt = (end - v) / L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
88 	while (cnt >= 8) {  in sh4__flush_invalidate_region()
89 		__ocbi(v); v += L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
90 		__ocbi(v); v += L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
91 		__ocbi(v); v += L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
92 		__ocbi(v); v += L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
93 		__ocbi(v); v += L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
94 		__ocbi(v); v += L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
95 		__ocbi(v); v += L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
96 		__ocbi(v); v += L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
97 		cnt -= 8;  in sh4__flush_invalidate_region()
101 		__ocbi(v); v += L1_CACHE_BYTES;  in sh4__flush_invalidate_region()
102 		cnt--;  in sh4__flush_invalidate_region()