move unaligned memory access functions to bswap.h

This is just code movement, and moving the fpu/ include path from
target-dependent to target-independent Make variables.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Paolo Bonzini 2011-07-28 12:10:30 +02:00 committed by Anthony Liguori
parent 789ec7ce20
commit cbbab9226d
4 changed files with 477 additions and 448 deletions

446
cpu-all.h
View file

@ -35,8 +35,6 @@
* TARGET_WORDS_BIGENDIAN : same for target cpu
*/
#include "softfloat.h"
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
#define BSWAP_NEEDED
#endif
@ -114,64 +112,6 @@ static inline void tswap64s(uint64_t *s)
#define bswaptls(s) bswap64s(s)
#endif
typedef union {
float32 f;
uint32_t l;
} CPU_FloatU;
/* NOTE: arm FPA is horrible as double 32 bit words are stored in big
endian ! */
typedef union {
float64 d;
#if defined(HOST_WORDS_BIGENDIAN)
struct {
uint32_t upper;
uint32_t lower;
} l;
#else
struct {
uint32_t lower;
uint32_t upper;
} l;
#endif
uint64_t ll;
} CPU_DoubleU;
typedef union {
floatx80 d;
struct {
uint64_t lower;
uint16_t upper;
} l;
} CPU_LDoubleU;
typedef union {
float128 q;
#if defined(HOST_WORDS_BIGENDIAN)
struct {
uint32_t upmost;
uint32_t upper;
uint32_t lower;
uint32_t lowest;
} l;
struct {
uint64_t upper;
uint64_t lower;
} ll;
#else
struct {
uint32_t lowest;
uint32_t lower;
uint32_t upper;
uint32_t upmost;
} l;
struct {
uint64_t lower;
uint64_t upper;
} ll;
#endif
} CPU_QuadU;
/* CPU memory access without any memory or io remapping */
/*
@ -207,392 +147,8 @@ typedef union {
* user : user mode access using soft MMU
* kernel : kernel mode access using soft MMU
*/
static inline int ldub_p(const void *ptr)
{
return *(uint8_t *)ptr;
}
static inline int ldsb_p(const void *ptr)
{
return *(int8_t *)ptr;
}
static inline void stb_p(void *ptr, int v)
{
*(uint8_t *)ptr = v;
}
/* NOTE: on arm, putting 2 in /proc/sys/debug/alignment so that the
kernel handles unaligned load/stores may give better results, but
it is a system wide setting : bad */
#if defined(HOST_WORDS_BIGENDIAN) || defined(WORDS_ALIGNED)
/* conservative code for little endian unaligned accesses */
static inline int lduw_le_p(const void *ptr)
{
#ifdef _ARCH_PPC
int val;
__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr));
return val;
#else
const uint8_t *p = ptr;
return p[0] | (p[1] << 8);
#endif
}
static inline int ldsw_le_p(const void *ptr)
{
#ifdef _ARCH_PPC
int val;
__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (ptr));
return (int16_t)val;
#else
const uint8_t *p = ptr;
return (int16_t)(p[0] | (p[1] << 8));
#endif
}
static inline int ldl_le_p(const void *ptr)
{
#ifdef _ARCH_PPC
int val;
__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (ptr));
return val;
#else
const uint8_t *p = ptr;
return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
#endif
}
static inline uint64_t ldq_le_p(const void *ptr)
{
const uint8_t *p = ptr;
uint32_t v1, v2;
v1 = ldl_le_p(p);
v2 = ldl_le_p(p + 4);
return v1 | ((uint64_t)v2 << 32);
}
static inline void stw_le_p(void *ptr, int v)
{
#ifdef _ARCH_PPC
__asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*(uint16_t *)ptr) : "r" (v), "r" (ptr));
#else
uint8_t *p = ptr;
p[0] = v;
p[1] = v >> 8;
#endif
}
static inline void stl_le_p(void *ptr, int v)
{
#ifdef _ARCH_PPC
__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*(uint32_t *)ptr) : "r" (v), "r" (ptr));
#else
uint8_t *p = ptr;
p[0] = v;
p[1] = v >> 8;
p[2] = v >> 16;
p[3] = v >> 24;
#endif
}
static inline void stq_le_p(void *ptr, uint64_t v)
{
uint8_t *p = ptr;
stl_le_p(p, (uint32_t)v);
stl_le_p(p + 4, v >> 32);
}
/* float access */
static inline float32 ldfl_le_p(const void *ptr)
{
union {
float32 f;
uint32_t i;
} u;
u.i = ldl_le_p(ptr);
return u.f;
}
static inline void stfl_le_p(void *ptr, float32 v)
{
union {
float32 f;
uint32_t i;
} u;
u.f = v;
stl_le_p(ptr, u.i);
}
static inline float64 ldfq_le_p(const void *ptr)
{
CPU_DoubleU u;
u.l.lower = ldl_le_p(ptr);
u.l.upper = ldl_le_p(ptr + 4);
return u.d;
}
static inline void stfq_le_p(void *ptr, float64 v)
{
CPU_DoubleU u;
u.d = v;
stl_le_p(ptr, u.l.lower);
stl_le_p(ptr + 4, u.l.upper);
}
#else
static inline int lduw_le_p(const void *ptr)
{
return *(uint16_t *)ptr;
}
static inline int ldsw_le_p(const void *ptr)
{
return *(int16_t *)ptr;
}
static inline int ldl_le_p(const void *ptr)
{
return *(uint32_t *)ptr;
}
static inline uint64_t ldq_le_p(const void *ptr)
{
return *(uint64_t *)ptr;
}
static inline void stw_le_p(void *ptr, int v)
{
*(uint16_t *)ptr = v;
}
static inline void stl_le_p(void *ptr, int v)
{
*(uint32_t *)ptr = v;
}
static inline void stq_le_p(void *ptr, uint64_t v)
{
*(uint64_t *)ptr = v;
}
/* float access */
static inline float32 ldfl_le_p(const void *ptr)
{
return *(float32 *)ptr;
}
static inline float64 ldfq_le_p(const void *ptr)
{
return *(float64 *)ptr;
}
static inline void stfl_le_p(void *ptr, float32 v)
{
*(float32 *)ptr = v;
}
static inline void stfq_le_p(void *ptr, float64 v)
{
*(float64 *)ptr = v;
}
#endif
#if !defined(HOST_WORDS_BIGENDIAN) || defined(WORDS_ALIGNED)
static inline int lduw_be_p(const void *ptr)
{
#if defined(__i386__)
int val;
asm volatile ("movzwl %1, %0\n"
"xchgb %b0, %h0\n"
: "=q" (val)
: "m" (*(uint16_t *)ptr));
return val;
#else
const uint8_t *b = ptr;
return ((b[0] << 8) | b[1]);
#endif
}
static inline int ldsw_be_p(const void *ptr)
{
#if defined(__i386__)
int val;
asm volatile ("movzwl %1, %0\n"
"xchgb %b0, %h0\n"
: "=q" (val)
: "m" (*(uint16_t *)ptr));
return (int16_t)val;
#else
const uint8_t *b = ptr;
return (int16_t)((b[0] << 8) | b[1]);
#endif
}
static inline int ldl_be_p(const void *ptr)
{
#if defined(__i386__) || defined(__x86_64__)
int val;
asm volatile ("movl %1, %0\n"
"bswap %0\n"
: "=r" (val)
: "m" (*(uint32_t *)ptr));
return val;
#else
const uint8_t *b = ptr;
return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];
#endif
}
static inline uint64_t ldq_be_p(const void *ptr)
{
uint32_t a,b;
a = ldl_be_p(ptr);
b = ldl_be_p((uint8_t *)ptr + 4);
return (((uint64_t)a<<32)|b);
}
static inline void stw_be_p(void *ptr, int v)
{
#if defined(__i386__)
asm volatile ("xchgb %b0, %h0\n"
"movw %w0, %1\n"
: "=q" (v)
: "m" (*(uint16_t *)ptr), "0" (v));
#else
uint8_t *d = (uint8_t *) ptr;
d[0] = v >> 8;
d[1] = v;
#endif
}
static inline void stl_be_p(void *ptr, int v)
{
#if defined(__i386__) || defined(__x86_64__)
asm volatile ("bswap %0\n"
"movl %0, %1\n"
: "=r" (v)
: "m" (*(uint32_t *)ptr), "0" (v));
#else
uint8_t *d = (uint8_t *) ptr;
d[0] = v >> 24;
d[1] = v >> 16;
d[2] = v >> 8;
d[3] = v;
#endif
}
static inline void stq_be_p(void *ptr, uint64_t v)
{
stl_be_p(ptr, v >> 32);
stl_be_p((uint8_t *)ptr + 4, v);
}
/* float access */
static inline float32 ldfl_be_p(const void *ptr)
{
union {
float32 f;
uint32_t i;
} u;
u.i = ldl_be_p(ptr);
return u.f;
}
static inline void stfl_be_p(void *ptr, float32 v)
{
union {
float32 f;
uint32_t i;
} u;
u.f = v;
stl_be_p(ptr, u.i);
}
static inline float64 ldfq_be_p(const void *ptr)
{
CPU_DoubleU u;
u.l.upper = ldl_be_p(ptr);
u.l.lower = ldl_be_p((uint8_t *)ptr + 4);
return u.d;
}
static inline void stfq_be_p(void *ptr, float64 v)
{
CPU_DoubleU u;
u.d = v;
stl_be_p(ptr, u.l.upper);
stl_be_p((uint8_t *)ptr + 4, u.l.lower);
}
#else
static inline int lduw_be_p(const void *ptr)
{
return *(uint16_t *)ptr;
}
static inline int ldsw_be_p(const void *ptr)
{
return *(int16_t *)ptr;
}
static inline int ldl_be_p(const void *ptr)
{
return *(uint32_t *)ptr;
}
static inline uint64_t ldq_be_p(const void *ptr)
{
return *(uint64_t *)ptr;
}
static inline void stw_be_p(void *ptr, int v)
{
*(uint16_t *)ptr = v;
}
static inline void stl_be_p(void *ptr, int v)
{
*(uint32_t *)ptr = v;
}
static inline void stq_be_p(void *ptr, uint64_t v)
{
*(uint64_t *)ptr = v;
}
/* float access */
static inline float32 ldfl_be_p(const void *ptr)
{
return *(float32 *)ptr;
}
static inline float64 ldfq_be_p(const void *ptr)
{
return *(float64 *)ptr;
}
static inline void stfl_be_p(void *ptr, float32 v)
{
*(float32 *)ptr = v;
}
static inline void stfq_be_p(void *ptr, float64 v)
{
*(float64 *)ptr = v;
}
#endif
/* target CPU memory access functions */
/* target-endianness CPU memory access functions */
#if defined(TARGET_WORDS_BIGENDIAN)
#define lduw_p(p) lduw_be_p(p)
#define ldsw_p(p) ldsw_be_p(p)