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| author | Hendrik Brueckner <brueckner@linux.vnet.ibm.com> | 2015-06-11 15:33:54 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-07-22 09:58:00 +0200 |
| commit | 904818e2f229f3d94ec95f6932a6358c81e73d78 (patch) | |
| tree | 8e08f576b000b18b181b617cd0d12a6649a26556 /arch/s390/kernel/process.c | |
| parent | s390/kvm: validate the floating-point control before restoring it (diff) | |
| download | linux-904818e2f229f3d94ec95f6932a6358c81e73d78.tar.xz linux-904818e2f229f3d94ec95f6932a6358c81e73d78.zip | |
s390/kernel: introduce fpu-internal.h with fpu helper functions
Introduce a new structure to manage FP and VX registers. Refactor the
save and restore of floating point and vector registers with a set
of helper functions in fpu-internal.h.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/process.c')
| -rw-r--r-- | arch/s390/kernel/process.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 8f587d871b9f..61795bc2fff4 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -81,8 +81,8 @@ void release_thread(struct task_struct *dead_task) void arch_release_task_struct(struct task_struct *tsk) { - if (tsk->thread.vxrs) - kfree(tsk->thread.vxrs); + if (is_vx_task(tsk)) + kfree(tsk->thread.fpu.vxrs); } int copy_thread(unsigned long clone_flags, unsigned long new_stackp, @@ -143,10 +143,10 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp, frame->childregs.psw.mask &= ~PSW_MASK_RI; /* Save the fpu registers to new thread structure. */ - save_fp_ctl(&p->thread.fp_regs.fpc); - save_fp_regs(p->thread.fp_regs.fprs); - p->thread.fp_regs.pad = 0; - p->thread.vxrs = NULL; + save_fp_ctl(&p->thread.fpu.fpc); + save_fp_regs(p->thread.fpu.fprs); + p->thread.fpu.pad = 0; + p->thread.fpu.vxrs = NULL; /* Set a new TLS ? */ if (clone_flags & CLONE_SETTLS) { unsigned long tls = frame->childregs.gprs[6]; @@ -162,7 +162,7 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp, asmlinkage void execve_tail(void) { - current->thread.fp_regs.fpc = 0; + current->thread.fpu.fpc = 0; asm volatile("sfpc %0" : : "d" (0)); } |