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authorPaul Burton <paul.burton@imgtec.com>2014-01-27 15:23:02 +0000
committerRalf Baechle <ralf@linux-mips.org>2014-03-26 23:09:09 +0100
commitb2ead528288545859dbd7004e07bc23204cf92a8 (patch)
treed01478041879e4d01aef8e1b544575428000caa5 /arch/mips/math-emu
parente87ce9482287c396c0804e4ec3a3fc63b1ff7ac0 (diff)
downloadlinux-b2ead528288545859dbd7004e07bc23204cf92a8.tar.bz2
MIPS: Move & rename fpu_emulator_{save,restore}_context
These functions aren't directly related to the FPU emulator at all, they simply copy between a thread's saved context & a sigcontext. Thus move them to the appropriate signal files & rename them accordingly. This makes it clearer that the functions don't require the FPU emulator in any way. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: Qais Yousef <qais.yousef@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6422/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/math-emu')
-rw-r--r--arch/mips/math-emu/kernel_linkage.c75
1 files changed, 0 insertions, 75 deletions
diff --git a/arch/mips/math-emu/kernel_linkage.c b/arch/mips/math-emu/kernel_linkage.c
index 9b46213b1035..eb58a85b3157 100644
--- a/arch/mips/math-emu/kernel_linkage.c
+++ b/arch/mips/math-emu/kernel_linkage.c
@@ -43,78 +43,3 @@ void fpu_emulator_init_fpu(void)
for (i = 0; i < 32; i++)
set_fpr64(&current->thread.fpu.fpr[i], 0, SIGNALLING_NAN);
}
-
-
-/*
- * Emulator context save/restore to/from a signal context
- * presumed to be on the user stack, and therefore accessed
- * with appropriate macros from uaccess.h
- */
-
-int fpu_emulator_save_context(struct sigcontext __user *sc)
-{
- int i;
- int err = 0;
-
- for (i = 0; i < 32; i++) {
- err |=
- __put_user(get_fpr64(&current->thread.fpu.fpr[i], 0),
- &sc->sc_fpregs[i]);
- }
- err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
-
- return err;
-}
-
-int fpu_emulator_restore_context(struct sigcontext __user *sc)
-{
- int i;
- int err = 0;
- u64 fpr_val;
-
- for (i = 0; i < 32; i++) {
- err |= __get_user(fpr_val, &sc->sc_fpregs[i]);
- set_fpr64(&current->thread.fpu.fpr[i], 0, fpr_val);
- }
- err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
-
- return err;
-}
-
-#ifdef CONFIG_64BIT
-/*
- * This is the o32 version
- */
-
-int fpu_emulator_save_context32(struct sigcontext32 __user *sc)
-{
- int i;
- int err = 0;
- int inc = test_thread_flag(TIF_32BIT_FPREGS) ? 2 : 1;
-
- for (i = 0; i < 32; i += inc) {
- err |=
- __put_user(get_fpr64(&current->thread.fpu.fpr[i], 0),
- &sc->sc_fpregs[i]);
- }
- err |= __put_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
-
- return err;
-}
-
-int fpu_emulator_restore_context32(struct sigcontext32 __user *sc)
-{
- int i;
- int err = 0;
- int inc = test_thread_flag(TIF_32BIT_FPREGS) ? 2 : 1;
- u64 fpr_val;
-
- for (i = 0; i < 32; i += inc) {
- err |= __get_user(fpr_val, &sc->sc_fpregs[i]);
- set_fpr64(&current->thread.fpu.fpr[i], 0, fpr_val);
- }
- err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
-
- return err;
-}
-#endif