1 files changed, 0 insertions, 94 deletions
diff --git a/crc/crc32c-intel.c b/crc/crc32c-intel.c
deleted file mode 100644
index 0b0f193c..00000000
--- a/crc/crc32c-intel.c
+++ /dev/null
@@ -1,94 +0,0 @@
-#include <inttypes.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include "crc32c.h"
-
-/*
- * Based on a posting to lkml by Austin Zhang <austin.zhang@intel.com>
- *
- * Using hardware provided CRC32 instruction to accelerate the CRC32 disposal.
- * CRC32C polynomial:0x1EDC6F41(BE)/0x82F63B78(LE)
- * CRC32 is a new instruction in Intel SSE4.2, the reference can be found at:
- * http://www.intel.com/products/processor/manuals/
- * Intel(R) 64 and IA-32 Architectures Software Developer's Manual
- * Volume 2A: Instruction Set Reference, A-M
- */
-
-int crc32c_intel_available = 0;
-
-#ifdef ARCH_HAVE_SSE4_2
-
-#if BITS_PER_LONG == 64
-#define REX_PRE "0x48, "
-#define SCALE_F 8
-#else
-#define REX_PRE
-#define SCALE_F 4
-#endif
-
-static int crc32c_probed;
-
-static uint32_t crc32c_intel_le_hw_byte(uint32_t crc, unsigned char const *data,
-					unsigned long length)
-{
-	while (length--) {
-		__asm__ __volatile__(
-			".byte 0xf2, 0xf, 0x38, 0xf0, 0xf1"
-			:"=S"(crc)
-			:"0"(crc), "c"(*data)
-		);
-		data++;
-	}
-
-	return crc;
-}
-
-/*
- * Steps through buffer one byte at at time, calculates reflected 
- * crc using table.
- */
-uint32_t crc32c_intel(unsigned char const *data, unsigned long length)
-{
-	unsigned int iquotient = length / SCALE_F;
-	unsigned int iremainder = length % SCALE_F;
-#if BITS_PER_LONG == 64
-	uint64_t *ptmp = (uint64_t *) data;
-#else
-	uint32_t *ptmp = (uint32_t *) data;
-#endif
-	uint32_t crc = ~0;
-
-	while (iquotient--) {
-		__asm__ __volatile__(
-			".byte 0xf2, " REX_PRE "0xf, 0x38, 0xf1, 0xf1;"
-			:"=S"(crc)
-			:"0"(crc), "c"(*ptmp)
-		);
-		ptmp++;
-	}
-
-	if (iremainder)
-		crc = crc32c_intel_le_hw_byte(crc, (unsigned char *)ptmp,
-				 iremainder);
-
-	return crc;
-}
-
-void crc32c_intel_probe(void)
-{
-	if (!crc32c_probed) {
-		unsigned int eax, ebx, ecx = 0, edx;
-
-		eax = 1;
-
-		do_cpuid(&eax, &ebx, &ecx, &edx);
-		crc32c_intel_available = (ecx & (1 << 20)) != 0;
-		crc32c_probed = 1;
-	}
-}
-
-#endif /* ARCH_HAVE_SSE */