57c230a873
These are needed due to a cache bug, and can be used to make sure that the DMA descriptors are flushed to memory and can be safely handled by DMA. flush_dma_descr - Flush one DMA descriptor. flush_dma_list - Flush a complete list of DMA descriptors. cris_flush_cache - Flush the complete cache. cris_flush_cache_range - Flush only the specified range Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
94 lines
1.4 KiB
ArmAsm
94 lines
1.4 KiB
ArmAsm
.global cris_flush_cache_range
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cris_flush_cache_range:
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move.d 1024, $r12
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cmp.d $r11, $r12
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bhi cris_flush_1KB
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nop
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add.d $r10, $r11
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ftagd [$r10]
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cris_flush_last:
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addq 32, $r10
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cmp.d $r11, $r10
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blt cris_flush_last
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ftagd [$r10]
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ret
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nop
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cris_flush_1KB:
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ftagd [$r10]
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addq 32, $r10
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ba cris_flush_cache_range
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sub.d $r12, $r11
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.global cris_flush_cache
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cris_flush_cache:
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moveq 0, $r10
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cris_flush_line:
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move.d 16*1024, $r11
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addq 16, $r10
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cmp.d $r10, $r11
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blt cris_flush_line
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fidxd [$r10]
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ret
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nop
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