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cpu/vexriscv/system.h: update flush_cpu_dcache.

This commit is contained in:
Florent Kermarrec 2020-07-21 19:43:00 +02:00
parent 47ce15b431
commit 408d1a9f5d
1 changed files with 1 additions and 7 deletions
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8
litex/soc/cores/cpu/vexriscv/system.h
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@ -21,13 +21,7 @@ __attribute__((unused)) static void flush_cpu_icache(void)
__attribute__((unused)) static void flush_cpu_dcache(void) __attribute__((unused)) static void flush_cpu_dcache(void)
{ {
unsigned long cache_info; asm volatile(".word(0x500F)\n");
asm volatile ("csrr %0, %1" : "=r"(cache_info) : "i"(CSR_DCACHE_INFO));
unsigned long cache_way_size = cache_info & 0xFFFFF;
unsigned long cache_line_size = (cache_info >> 20) & 0xFFF;
for(register unsigned long idx = 0;idx < cache_way_size;idx += cache_line_size){
asm volatile("mv x10, %0 \n .word(0b01110000000001010101000000001111)"::"r"(idx));
}
} }
void flush_l2_cache(void); void flush_l2_cache(void);