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target/arm: Drop ARM_FEATURE_IWMMXT handling

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We have now removed all the CPU types which had the Intel XScale
extensions indicated via ARM_FEATURE_IWMMXT, so this feature bit
is never set. Remove all the code that can only be reached when
using this flag.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250828140422.3271703-6-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2025-08-28 15:04:22 +01:00
parent 4f0fa4bfd9
commit effe47ff48
6 changed files with 0 additions and 117 deletions
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1
linux-user/arm/elfload.c
View file

@ -76,7 +76,6 @@ abi_ulong get_elf_hwcap(CPUState *cs)
/* EDSP is in v5TE and above, but all our v5 CPUs are v5TE */
GET_FEATURE(ARM_FEATURE_V5, ARM_HWCAP_ARM_EDSP);
GET_FEATURE(ARM_FEATURE_IWMMXT, ARM_HWCAP_ARM_IWMMXT);
GET_FEATURE(ARM_FEATURE_THUMB2EE, ARM_HWCAP_ARM_THUMBEE);
GET_FEATURE(ARM_FEATURE_NEON, ARM_HWCAP_ARM_NEON);
GET_FEATURE(ARM_FEATURE_V6K, ARM_HWCAP_ARM_TLS);

67
linux-user/arm/signal.c
View file

@ -76,21 +76,7 @@ struct target_vfp_sigframe {
struct target_user_vfp_exc ufp_exc;
} __attribute__((__aligned__(8)));
struct target_iwmmxt_sigframe {
abi_ulong magic;
abi_ulong size;
uint64_t regs[16];
/* Note that not all the coprocessor control registers are stored here */
uint32_t wcssf;
uint32_t wcasf;
uint32_t wcgr0;
uint32_t wcgr1;
uint32_t wcgr2;
uint32_t wcgr3;
} __attribute__((__aligned__(8)));
#define TARGET_VFP_MAGIC 0x56465001
#define TARGET_IWMMXT_MAGIC 0x12ef842a
struct sigframe
{
@ -267,25 +253,6 @@ static abi_ulong *setup_sigframe_vfp(abi_ulong *regspace, CPUARMState *env)
return (abi_ulong*)(vfpframe+1);
}
static abi_ulong *setup_sigframe_iwmmxt(abi_ulong *regspace, CPUARMState *env)
{
int i;
struct target_iwmmxt_sigframe *iwmmxtframe;
iwmmxtframe = (struct target_iwmmxt_sigframe *)regspace;
__put_user(TARGET_IWMMXT_MAGIC, &iwmmxtframe->magic);
__put_user(sizeof(*iwmmxtframe), &iwmmxtframe->size);
for (i = 0; i < 16; i++) {
__put_user(env->iwmmxt.regs[i], &iwmmxtframe->regs[i]);
}
__put_user(env->vfp.xregs[ARM_IWMMXT_wCSSF], &iwmmxtframe->wcssf);
__put_user(env->vfp.xregs[ARM_IWMMXT_wCASF], &iwmmxtframe->wcssf);
__put_user(env->vfp.xregs[ARM_IWMMXT_wCGR0], &iwmmxtframe->wcgr0);
__put_user(env->vfp.xregs[ARM_IWMMXT_wCGR1], &iwmmxtframe->wcgr1);
__put_user(env->vfp.xregs[ARM_IWMMXT_wCGR2], &iwmmxtframe->wcgr2);
__put_user(env->vfp.xregs[ARM_IWMMXT_wCGR3], &iwmmxtframe->wcgr3);
return (abi_ulong*)(iwmmxtframe+1);
}
static void setup_sigframe(struct target_ucontext *uc,
target_sigset_t *set, CPUARMState *env)
{
@ -306,9 +273,6 @@ static void setup_sigframe(struct target_ucontext *uc,
if (cpu_isar_feature(aa32_vfp_simd, env_archcpu(env))) {
regspace = setup_sigframe_vfp(regspace, env);
}
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
regspace = setup_sigframe_iwmmxt(regspace, env);
}
/* Write terminating magic word */
__put_user(0, regspace);
@ -435,31 +399,6 @@ static abi_ulong *restore_sigframe_vfp(CPUARMState *env, abi_ulong *regspace)
return (abi_ulong*)(vfpframe + 1);
}
static abi_ulong *restore_sigframe_iwmmxt(CPUARMState *env,
abi_ulong *regspace)
{
int i;
abi_ulong magic, sz;
struct target_iwmmxt_sigframe *iwmmxtframe;
iwmmxtframe = (struct target_iwmmxt_sigframe *)regspace;
__get_user(magic, &iwmmxtframe->magic);
__get_user(sz, &iwmmxtframe->size);
if (magic != TARGET_IWMMXT_MAGIC || sz != sizeof(*iwmmxtframe)) {
return 0;
}
for (i = 0; i < 16; i++) {
__get_user(env->iwmmxt.regs[i], &iwmmxtframe->regs[i]);
}
__get_user(env->vfp.xregs[ARM_IWMMXT_wCSSF], &iwmmxtframe->wcssf);
__get_user(env->vfp.xregs[ARM_IWMMXT_wCASF], &iwmmxtframe->wcssf);
__get_user(env->vfp.xregs[ARM_IWMMXT_wCGR0], &iwmmxtframe->wcgr0);
__get_user(env->vfp.xregs[ARM_IWMMXT_wCGR1], &iwmmxtframe->wcgr1);
__get_user(env->vfp.xregs[ARM_IWMMXT_wCGR2], &iwmmxtframe->wcgr2);
__get_user(env->vfp.xregs[ARM_IWMMXT_wCGR3], &iwmmxtframe->wcgr3);
return (abi_ulong*)(iwmmxtframe + 1);
}
static int do_sigframe_return(CPUARMState *env,
target_ulong context_addr,
struct target_ucontext *uc)
@ -482,12 +421,6 @@ static int do_sigframe_return(CPUARMState *env,
return 1;
}
}
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
regspace = restore_sigframe_iwmmxt(env, regspace);
if (!regspace) {
return 1;
}
}
target_restore_altstack(&uc->tuc_stack, env);