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hw/pflash_cfi0[12]: Use host-utils.h ctz32()

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Drop the private reimplementation of ctz32() from pflash_cfi0[12]
in favour of using the standard version from host-utils.h.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Peter Maydell 2012-09-18 14:53:42 +01:00 committed by Aurelien Jarno
parent 262e1eaafa
commit eb99c9a993
2 changed files with 2 additions and 72 deletions
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37
hw/pflash_cfi01.c
View File

@ -41,6 +41,7 @@
#include "block.h"
#include "qemu-timer.h"
#include "exec-memory.h"
#include "host-utils.h"
#define PFLASH_BUG(fmt, ...) \
do { \
@ -543,42 +544,6 @@ static const MemoryRegionOps pflash_cfi01_ops_le = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
/* Count trailing zeroes of a 32 bits quantity */
static int ctz32 (uint32_t n)
{
int ret;
ret = 0;
if (!(n & 0xFFFF)) {
ret += 16;
n = n >> 16;
}
if (!(n & 0xFF)) {
ret += 8;
n = n >> 8;
}
if (!(n & 0xF)) {
ret += 4;
n = n >> 4;
}
if (!(n & 0x3)) {
ret += 2;
n = n >> 2;
}
if (!(n & 0x1)) {
ret++;
#if 0 /* This is not necessary as n is never 0 */
n = n >> 1;
#endif
}
#if 0 /* This is not necessary as n is never 0 */
if (!n)
ret++;
#endif
return ret;
}
pflash_t *pflash_cfi01_register(target_phys_addr_t base,
DeviceState *qdev, const char *name,
target_phys_addr_t size,

37
hw/pflash_cfi02.c
View File

@ -40,6 +40,7 @@
#include "qemu-timer.h"
#include "block.h"
#include "exec-memory.h"
#include "host-utils.h"
//#define PFLASH_DEBUG
#ifdef PFLASH_DEBUG
@ -575,42 +576,6 @@ static const MemoryRegionOps pflash_cfi02_ops_le = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
/* Count trailing zeroes of a 32 bits quantity */
static int ctz32 (uint32_t n)
{
int ret;
ret = 0;
if (!(n & 0xFFFF)) {
ret += 16;
n = n >> 16;
}
if (!(n & 0xFF)) {
ret += 8;
n = n >> 8;
}
if (!(n & 0xF)) {
ret += 4;
n = n >> 4;
}
if (!(n & 0x3)) {
ret += 2;
n = n >> 2;
}
if (!(n & 0x1)) {
ret++;
#if 0 /* This is not necessary as n is never 0 */
n = n >> 1;
#endif
}
#if 0 /* This is not necessary as n is never 0 */
if (!n)
ret++;
#endif
return ret;
}
pflash_t *pflash_cfi02_register(target_phys_addr_t base,
DeviceState *qdev, const char *name,
target_phys_addr_t size,