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[PULL 02/28] target/i386: Convert do_fldt, do_fstt to X86Access
From: |
Richard Henderson |
Subject: |
[PULL 02/28] target/i386: Convert do_fldt, do_fstt to X86Access |
Date: |
Sun, 26 May 2024 17:49:35 -0700 |
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/i386/tcg/fpu_helper.c | 44 +++++++++++++++++++++++++-----------
1 file changed, 31 insertions(+), 13 deletions(-)
diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c
index ece22a3553..1662643a8f 100644
--- a/target/i386/tcg/fpu_helper.c
+++ b/target/i386/tcg/fpu_helper.c
@@ -27,6 +27,7 @@
#include "fpu/softfloat.h"
#include "fpu/softfloat-macros.h"
#include "helper-tcg.h"
+#include "access.h"
/* float macros */
#define FT0 (env->ft0)
@@ -84,23 +85,22 @@ static inline void fpop(CPUX86State *env)
env->fpstt = (env->fpstt + 1) & 7;
}
-static floatx80 do_fldt(CPUX86State *env, target_ulong ptr, uintptr_t retaddr)
+static floatx80 do_fldt(X86Access *ac, target_ulong ptr)
{
CPU_LDoubleU temp;
- temp.l.lower = cpu_ldq_data_ra(env, ptr, retaddr);
- temp.l.upper = cpu_lduw_data_ra(env, ptr + 8, retaddr);
+ temp.l.lower = access_ldq(ac, ptr);
+ temp.l.upper = access_ldw(ac, ptr + 8);
return temp.d;
}
-static void do_fstt(CPUX86State *env, floatx80 f, target_ulong ptr,
- uintptr_t retaddr)
+static void do_fstt(X86Access *ac, target_ulong ptr, floatx80 f)
{
CPU_LDoubleU temp;
temp.d = f;
- cpu_stq_data_ra(env, ptr, temp.l.lower, retaddr);
- cpu_stw_data_ra(env, ptr + 8, temp.l.upper, retaddr);
+ access_stq(ac, ptr, temp.l.lower);
+ access_stw(ac, ptr + 8, temp.l.upper);
}
/* x87 FPU helpers */
@@ -382,16 +382,22 @@ int64_t helper_fisttll_ST0(CPUX86State *env)
void helper_fldt_ST0(CPUX86State *env, target_ulong ptr)
{
int new_fpstt;
+ X86Access ac;
+
+ access_prepare(&ac, env, ptr, 10, MMU_DATA_LOAD, GETPC());
new_fpstt = (env->fpstt - 1) & 7;
- env->fpregs[new_fpstt].d = do_fldt(env, ptr, GETPC());
+ env->fpregs[new_fpstt].d = do_fldt(&ac, ptr);
env->fpstt = new_fpstt;
env->fptags[new_fpstt] = 0; /* validate stack entry */
}
void helper_fstt_ST0(CPUX86State *env, target_ulong ptr)
{
- do_fstt(env, ST0, ptr, GETPC());
+ X86Access ac;
+
+ access_prepare(&ac, env, ptr, 10, MMU_DATA_STORE, GETPC());
+ do_fstt(&ac, ptr, ST0);
}
void helper_fpush(CPUX86State *env)
@@ -2460,15 +2466,18 @@ void helper_fldenv(CPUX86State *env, target_ulong ptr,
int data32)
static void do_fsave(CPUX86State *env, target_ulong ptr, int data32,
uintptr_t retaddr)
{
+ X86Access ac;
floatx80 tmp;
int i;
do_fstenv(env, ptr, data32, retaddr);
ptr += (target_ulong)14 << data32;
+ access_prepare(&ac, env, ptr, 80, MMU_DATA_STORE, retaddr);
+
for (i = 0; i < 8; i++) {
tmp = ST(i);
- do_fstt(env, tmp, ptr, retaddr);
+ do_fstt(&ac, ptr, tmp);
ptr += 10;
}
@@ -2483,14 +2492,17 @@ void helper_fsave(CPUX86State *env, target_ulong ptr,
int data32)
static void do_frstor(CPUX86State *env, target_ulong ptr, int data32,
uintptr_t retaddr)
{
+ X86Access ac;
floatx80 tmp;
int i;
do_fldenv(env, ptr, data32, retaddr);
ptr += (target_ulong)14 << data32;
+ access_prepare(&ac, env, ptr, 80, MMU_DATA_LOAD, retaddr);
+
for (i = 0; i < 8; i++) {
- tmp = do_fldt(env, ptr, retaddr);
+ tmp = do_fldt(&ac, ptr);
ST(i) = tmp;
ptr += 10;
}
@@ -2507,6 +2519,7 @@ static void do_xsave_fpu(CPUX86State *env, target_ulong
ptr, uintptr_t ra)
{
int fpus, fptag, i;
target_ulong addr;
+ X86Access ac;
fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
fptag = 0;
@@ -2525,9 +2538,11 @@ static void do_xsave_fpu(CPUX86State *env, target_ulong
ptr, uintptr_t ra)
cpu_stq_data_ra(env, ptr + XO(legacy.fpdp), 0, ra); /* edp+sel; rdp */
addr = ptr + XO(legacy.fpregs);
+ access_prepare(&ac, env, addr, 8 * 16, MMU_DATA_STORE, ra);
+
for (i = 0; i < 8; i++) {
floatx80 tmp = ST(i);
- do_fstt(env, tmp, addr, ra);
+ do_fstt(&ac, addr, tmp);
addr += 16;
}
}
@@ -2700,6 +2715,7 @@ static void do_xrstor_fpu(CPUX86State *env, target_ulong
ptr, uintptr_t ra)
{
int i, fpuc, fpus, fptag;
target_ulong addr;
+ X86Access ac;
fpuc = cpu_lduw_data_ra(env, ptr + XO(legacy.fcw), ra);
fpus = cpu_lduw_data_ra(env, ptr + XO(legacy.fsw), ra);
@@ -2712,8 +2728,10 @@ static void do_xrstor_fpu(CPUX86State *env, target_ulong
ptr, uintptr_t ra)
}
addr = ptr + XO(legacy.fpregs);
+ access_prepare(&ac, env, addr, 8 * 16, MMU_DATA_LOAD, ra);
+
for (i = 0; i < 8; i++) {
- floatx80 tmp = do_fldt(env, addr, ra);
+ floatx80 tmp = do_fldt(&ac, addr);
ST(i) = tmp;
addr += 16;
}
--
2.34.1
- [PULL 00/28] linux-user patch queue, Richard Henderson, 2024/05/26
- [PULL 04/28] target/i386: Convert do_fldenv to X86Access, Richard Henderson, 2024/05/26
- [PULL 01/28] target/i386: Add tcg/access.[ch], Richard Henderson, 2024/05/26
- [PULL 03/28] target/i386: Convert helper_{fbld, fbst}_ST0 to X86Access, Richard Henderson, 2024/05/26
- [PULL 02/28] target/i386: Convert do_fldt, do_fstt to X86Access,
Richard Henderson <=
- [PULL 12/28] target/i386: Split out do_xsave_chk, Richard Henderson, 2024/05/26
- [PULL 08/28] target/i386: Convert do_xrstor_{fpu, mxcr, sse} to X86Access, Richard Henderson, 2024/05/26
- [PULL 10/28] target/i386: Convert do_xsave_* to X86Access, Richard Henderson, 2024/05/26
- [PULL 13/28] target/i386: Add rbfm argument to cpu_x86_{xsave, xrstor}, Richard Henderson, 2024/05/26
- [PULL 20/28] linux-user/i386: Return boolean success from restore_sigcontext, Richard Henderson, 2024/05/26
- [PULL 19/28] linux-user/i386: Fix -mregparm=3 for signal delivery, Richard Henderson, 2024/05/26
- [PULL 18/28] linux-user/i386: Split out struct target_fregs_state, Richard Henderson, 2024/05/26
- [PULL 07/28] target/i386: Convert do_xsave_{fpu, mxcr, sse} to X86Access, Richard Henderson, 2024/05/26
- [PULL 17/28] linux-user/i386: Replace target_fpstate_fxsave with X86LegacyXSaveArea, Richard Henderson, 2024/05/26
- [PULL 24/28] target/i386: Convert do_xsave to X86Access, Richard Henderson, 2024/05/26