28 lines
877 B
C++
28 lines
877 B
C++
#include "master.hpp"
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namespace factor {
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void flush_icache(cell start, cell len) {
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int result;
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/* XXX: why doesn't this work on Nokia n800? It should behave
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identically to the below assembly. */
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/* result = syscall(__ARM_NR_cacheflush,start,start + len,0); */
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/* Assembly swiped from
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http://lists.arm.linux.org.uk/pipermail/linux-arm/2002-July/003931.html */
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__asm__ __volatile__("mov r0, %1\n"
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"sub r1, %2, #1\n"
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"mov r2, #0\n"
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"swi " __sys1(__ARM_NR_cacheflush) "\n"
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"mov %0, r0\n"
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: "=r"(result)
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: "r"(start), "r"(start + len)
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: "r0", "r1", "r2");
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if (result < 0)
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critical_error("flush_icache() failed", result);
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}
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}
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