Date: Mon, 2 Mar 2009 09:36:56 GMT From: Ulf Lilleengen <lulf@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 158580 for review Message-ID: <200903020936.n229auZu042957@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=158580 Change 158580 by lulf@lulf_carrot on 2009/03/02 09:36:20 - Add macro for flushing write buffer. - Flush writebuffer after cleaning cache. Affected files ... .. //depot/projects/avr32/src/sys/avr32/avr32/cache.c#3 edit .. //depot/projects/avr32/src/sys/avr32/include/cache.h#2 edit Differences ... ==== //depot/projects/avr32/src/sys/avr32/avr32/cache.c#3 (text+ko) ==== @@ -122,6 +122,10 @@ avr32_dcache_line_size = pow(2, bit_value(SYS, CONFIG1, DLSZ, config) + 1); avr32_dcache_ways = pow(2, bit_value(SYS, CONFIG1, DASS, config)); + printf("ICACHE: sz %d lsz %d assoc %d\n", avr32_icache_size, + avr32_icache_line_size, avr32_icache_ways); + printf("DCACHE: sz %d lsz %d assoc %d\n", avr32_dcache_size, + avr32_dcache_line_size, avr32_dcache_ways); /* log2(1) = 0, meaning no cache present. */ if (avr32_icache_line_size == 1) { @@ -207,7 +211,6 @@ /* Put address at a cache line boundary. */ va = trunc_line(from, avr32_dcache_line_size); va_end = round_line(from + size, avr32_dcache_line_size); - while (va < va_end) { cache_line_op(va, DCACHE_WRITEBACK_INVALIDATE); va += avr32_dcache_line_size; @@ -223,7 +226,6 @@ /* Put address at a cache line boundary. */ va = trunc_line(from, avr32_dcache_line_size); va_end = round_line(from + size, avr32_dcache_line_size); - while (va < va_end) { cache_line_op(va, DCACHE_INVALIDATE); va += avr32_dcache_line_size; @@ -243,4 +245,5 @@ cache_line_op(va, DCACHE_WRITEBACK); va += avr32_dcache_line_size; } + avr32_wbflush(); } ==== //depot/projects/avr32/src/sys/avr32/include/cache.h#2 (text+ko) ==== @@ -152,5 +152,8 @@ #define avr32_dcache_wb_range(v, s) \ __mco_2args(, dcache_wb_range, (v), (s)) +/* For flushing the write buffer. */ +#define avr32_wbflush() __asm__ __volatile("sync 0" : : : "memory") + void avr32_config_cache(void); void avr32_dcache_compute_align(void);home | help
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