X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=rpikern;a=blobdiff_plain;f=src%2Fsysctl.h;fp=src%2Fsysctl.h;h=8d9634ae05ac30c51b55fbbfd5558ece07400678;hp=0000000000000000000000000000000000000000;hb=99bdc8838f189f79ba77bfbbf41d7f1b4839ce0f;hpb=6da291dc416a718164b5596aa16b1901f2770732

diff --git a/src/sysctl.h b/src/sysctl.h
new file mode 100644
index 0000000..8d9634a
--- /dev/null
+++ b/src/sysctl.h
@@ -0,0 +1,18 @@
+#ifndef SYSCTL_H_
+#define SYSCTL_H_
+
+/* c7 reg, op1=0, mode c14 is clean&inval, op2=1 is cacheline MVA */
+#define sysctl_dcache_clean_inval(addr, len) \
+	do { \
+		register uint32_t a asm("r0") = addr; \
+		asm volatile( \
+			"\n0:\tmcr p15, 0, %0, c7, c14, 1" \
+			"\n\tadd %0, #64" \
+			"\n\tcmp %0, %1" \
+			"\n\tblo 0b" \
+			:: "r"(a), "r"(addr + len) \
+			: "memory"); \
+	} while(0)
+
+
+#endif	/* SYSCTL_H_ */