struct ucontext rs_uc;
};
+#ifdef CONFIG_MIPS_FP_SUPPORT
+
/*
* Thread saved context copy to/from a signal context presumed to be on the
* user stack, and therefore accessed with appropriate macros from uaccess.h.
return err;
}
+#else /* !CONFIG_MIPS_FP_SUPPORT */
+
+static int copy_fp_to_sigcontext(void __user *sc)
+{
+ return 0;
+}
+
+static int copy_fp_from_sigcontext(void __user *sc)
+{
+ return 0;
+}
+
+#endif /* !CONFIG_MIPS_FP_SUPPORT */
+
/*
* Wrappers for the assembly _{save,restore}_fp_context functions.
*/
return &uc->uc_extcontext;
}
+#ifdef CONFIG_CPU_HAS_MSA
+
static int save_msa_extcontext(void __user *buf)
{
struct msa_extcontext __user *msa = buf;
unsigned int csr;
int i, err;
- if (!IS_ENABLED(CONFIG_CPU_HAS_MSA))
- return SIGSYS;
-
if (size != sizeof(*msa))
return -EINVAL;
return err;
}
+#else /* !CONFIG_CPU_HAS_MSA */
+
+static int save_msa_extcontext(void __user *buf)
+{
+ return 0;
+}
+
+static int restore_msa_extcontext(void __user *buf, unsigned int size)
+{
+ return SIGSYS;
+}
+
+#endif /* !CONFIG_CPU_HAS_MSA */
+
static int save_extcontext(void __user *buf)
{
int sz;
user_enter();
}
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS_FP_SUPPORT)
static int smp_save_fp_context(void __user *sc)
{
return raw_cpu_has_fpu
(offsetof(struct rt_sigframe, rs_uc.uc_extcontext) -
offsetof(struct rt_sigframe, rs_uc.uc_mcontext)));
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS_FP_SUPPORT)
/* For now just do the cpu_has_fpu check when the functions are invoked */
save_fp_context = smp_save_fp_context;
restore_fp_context = smp_restore_fp_context;