diff options
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 46 |
1 files changed, 1 insertions, 45 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index b1e36602c013..97dc28a68465 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -351,6 +351,7 @@ trace_syscall_entry_irq_off: .globl transfer_to_syscall transfer_to_syscall: + SAVE_NVGPRS(r1) #ifdef CONFIG_PPC_BOOK3S_32 kuep_lock r11, r12 #endif @@ -615,51 +616,6 @@ ret_from_kernel_syscall: _ASM_NOKPROBE_SYMBOL(ret_from_kernel_syscall) /* - * The fork/clone functions need to copy the full register set into - * the child process. Therefore we need to save all the nonvolatile - * registers (r13 - r31) before calling the C code. - */ - .globl ppc_fork -ppc_fork: - SAVE_NVGPRS(r1) - lwz r0,_TRAP(r1) - rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */ - stw r0,_TRAP(r1) /* register set saved */ - b sys_fork - - .globl ppc_vfork -ppc_vfork: - SAVE_NVGPRS(r1) - lwz r0,_TRAP(r1) - rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */ - stw r0,_TRAP(r1) /* register set saved */ - b sys_vfork - - .globl ppc_clone -ppc_clone: - SAVE_NVGPRS(r1) - lwz r0,_TRAP(r1) - rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */ - stw r0,_TRAP(r1) /* register set saved */ - b sys_clone - - .globl ppc_clone3 -ppc_clone3: - SAVE_NVGPRS(r1) - lwz r0,_TRAP(r1) - rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */ - stw r0,_TRAP(r1) /* register set saved */ - b sys_clone3 - - .globl ppc_swapcontext -ppc_swapcontext: - SAVE_NVGPRS(r1) - lwz r0,_TRAP(r1) - rlwinm r0,r0,0,0,30 /* clear LSB to indicate full */ - stw r0,_TRAP(r1) /* register set saved */ - b sys_swapcontext - -/* * Top-level page fault handling. * This is in assembler because if do_page_fault tells us that * it is a bad kernel page fault, we want to save the non-volatile |