summaryrefslogtreecommitdiff
path: root/arch/mips/math-emu/kernel_linkage.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-02 13:40:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-02 13:40:50 -0700
commitbdfc7cbdeef8cadba0e5793079ac0130b8e2220c (patch)
tree82af0cae4898e259edcc6cbdad639087dc1189a8 /arch/mips/math-emu/kernel_linkage.c
parent62d1a3ba5adc5653d43f6cd3a90758bb6ad5d5bd (diff)
parentade63aada79c61bcd5f51cbd310f237399892268 (diff)
Merge branch 'mips-for-linux-next' of git://git.linux-mips.org/pub/scm/ralf/upstream-sfr
Pull MIPS updates from Ralf Baechle: - Support for Imgtec's Aptiv family of MIPS cores. - Improved detection of BCM47xx configurations. - Fix hiberation for certain configurations. - Add support for the Chinese Loongson 3 CPU, a MIPS64 R2 core and systems. - Detection and support for the MIPS P5600 core. - A few more random fixes that didn't make 3.14. - Support for the EVA Extended Virtual Addressing - Switch Alchemy to the platform PATA driver - Complete unification of Alchemy support - Allow availability of I/O cache coherency to be runtime detected - Improvments to multiprocessing support for Imgtec platforms - A few microoptimizations - Cleanups of FPU support - Paul Gortmaker's fixes for the init stuff - Support for seccomp * 'mips-for-linux-next' of git://git.linux-mips.org/pub/scm/ralf/upstream-sfr: (165 commits) MIPS: CPC: Use __raw_ memory access functions MIPS: CM: use __raw_ memory access functions MIPS: Fix warning when including smp-ops.h with CONFIG_SMP=n MIPS: Malta: GIC IPIs may be used without MT MIPS: smp-mt: Use common GIC IPI implementation MIPS: smp-cmp: Remove incorrect core number probe MIPS: Fix gigaton of warning building with microMIPS. MIPS: Fix core number detection for MT cores MIPS: MT: core_nvpes function to retrieve VPE count MIPS: Provide empty mips_mt_set_cpuoptions when CONFIG_MIPS_MT=n MIPS: Lasat: Replace del_timer by del_timer_sync MIPS: Malta: Setup PM I/O region on boot MIPS: Loongson: Add a Loongson-3 default config file MIPS: Loongson 3: Add CPU hotplug support MIPS: Loongson 3: Add Loongson-3 SMP support MIPS: Loongson: Add Loongson-3 Kconfig options MIPS: Loongson: Add swiotlb to support All-Memory DMA MIPS: Loongson 3: Add serial port support MIPS: Loongson 3: Add IRQ init and dispatch support MIPS: Loongson 3: Add HT-linked PCI support ...
Diffstat (limited to 'arch/mips/math-emu/kernel_linkage.c')
-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)
}
current->thread.fpu.fcr31 = 0;
- for (i = 0; i < 32; i++) {
- current->thread.fpu.fpr[i] = 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(current->thread.fpu.fpr[i], &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;
-
- for (i = 0; i < 32; i++) {
- err |=
- __get_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
- }
- 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(current->thread.fpu.fpr[i], &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;
-
- for (i = 0; i < 32; i += inc) {
- err |=
- __get_user(current->thread.fpu.fpr[i], &sc->sc_fpregs[i]);
- }
- err |= __get_user(current->thread.fpu.fcr31, &sc->sc_fpc_csr);
-
- return err;
+ for (i = 0; i < 32; i++)
+ set_fpr64(&current->thread.fpu.fpr[i], 0, SIGNALLING_NAN);
}
-#endif