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-rw-r--r--arch/mips/math-emu/kernel_linkage.c76
1 files changed, 2 insertions, 74 deletions
diff --git a/arch/mips/math-emu/kernel_linkage.c b/arch/mips/math-emu/kernel_linkage.c
index 3aeae07ed5b8..eb58a85b3157 100644
--- a/arch/mips/math-emu/kernel_linkage.c
+++ b/arch/mips/math-emu/kernel_linkage.c
@@ -40,78 +40,6 @@ void fpu_emulator_init_fpu(void)
40 } 40 }
41 41
42 current->thread.fpu.fcr31 = 0; 42 current->thread.fpu.fcr31 = 0;
43 for (i = 0; i < 32; i++) { 43 for (i = 0; i < 32; i++)
44 current->thread.fpu.fpr[i] = SIGNALLING_NAN; 44 set_fpr64(&current->thread.fpu.fpr[i], 0, SIGNALLING_NAN);
45 }
46}
47
48
49/*
50 * Emulator context save/restore to/from a signal context
51 * presumed to be on the user stack, and therefore accessed
52 * with appropriate macros from uaccess.h
53 */
54
55int fpu_emulator_save_context(struct sigcontext __user *sc)
56{
57 int i;
58 int err = 0;
59
60 for (i = 0; i < 32; i++) {
61 err |=
62 __put_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
63 }
64 err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
65
66 return err;
67}
68
69int fpu_emulator_restore_context(struct sigcontext __user *sc)
70{
71 int i;
72 int err = 0;
73
74 for (i = 0; i < 32; i++) {
75 err |=
76 __get_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
77 }
78 err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
79
80 return err;
81}
82
83#ifdef CONFIG_64BIT
84/*
85 * This is the o32 version
86 */
87
88int fpu_emulator_save_context32(struct sigcontext32 __user *sc)
89{
90 int i;
91 int err = 0;
92 int inc = test_thread_flag(TIF_32BIT_FPREGS) ? 2 : 1;
93
94 for (i = 0; i < 32; i += inc) {
95 err |=
96 __put_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
97 }
98 err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
99
100 return err;
101}
102
103int fpu_emulator_restore_context32(struct sigcontext32 __user *sc)
104{
105 int i;
106 int err = 0;
107 int inc = test_thread_flag(TIF_32BIT_FPREGS) ? 2 : 1;
108
109 for (i = 0; i < 32; i += inc) {
110 err |=
111 __get_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
112 }
113 err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
114
115 return err;
116} 45}
117#endif