diff options
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/kernel/entry-nommu.S | 5 | ||||
| -rw-r--r-- | arch/microblaze/kernel/entry.S | 4 |
2 files changed, 7 insertions, 2 deletions
diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S index 29a05d6..96f97f8 100644 --- a/arch/microblaze/kernel/entry-nommu.S +++ b/arch/microblaze/kernel/entry-nommu.S @@ -280,6 +280,7 @@ ENTRY(_user_exception) /* Figure out which function to use for this system call. */ /* Note Microblaze barrel shift is optional, so don't rely on it */ add r12, r12, r12 /* convert num -> ptr */ + addik r30, r0, 1 /* restarts allowed */ add r12, r12, r12 lwi r12, r12, sys_call_table /* Get function pointer */ addik r15, r0, ret_to_user-8 /* set return address */ @@ -369,6 +370,7 @@ ENTRY(_debug_exception) bralid r15, send_sig add r7, r0, r0 /* 3rd param zero */ + addik r30, r0, 1 /* restarts allowed ??? */ /* Restore r3/r4 to work around how ret_to_user works */ lwi r3, r1, PT_R3 lwi r4, r1, PT_R4 @@ -492,7 +494,7 @@ work_pending: nop 1: andi r11, r19, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME beqi r11, no_work_pending - addk r5, r1, r0 + addk r5, r30, r0 bralid r15, do_notify_resume addik r6, r0, 1 bri no_work_pending @@ -562,6 +564,7 @@ no_work_pending: nop sys_rt_sigreturn_wrapper: + addk r30, r0, r0 /* no restarts for this one */ brid sys_rt_sigreturn addk r5, r1, r0 diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S index c217367..18908d2 100644 --- a/arch/microblaze/kernel/entry.S +++ b/arch/microblaze/kernel/entry.S @@ -353,6 +353,7 @@ C_ENTRY(_user_exception): /* Figure out which function to use for this system call. */ /* Note Microblaze barrel shift is optional, so don't rely on it */ add r12, r12, r12; /* convert num -> ptr */ + addi r30, r0, 1 /* restarts allowed */ add r12, r12, r12; #ifdef DEBUG @@ -417,7 +418,7 @@ C_ENTRY(ret_from_trap): addik r5, r1, 0; /* Arg 1: struct pt_regs *regs */ bralid r15, do_notify_resume; /* Handle any signals */ - addi r6, r0, 1; /* Arg 2: int in_syscall */ + add r6, r30, r0; /* Arg 2: int in_syscall */ /* Finally, return to user state. */ 1: set_bip; /* Ints masked for state restore */ @@ -464,6 +465,7 @@ C_ENTRY(ret_from_kernel_thread): add r3, r0, r0 C_ENTRY(sys_rt_sigreturn_wrapper): + addik r30, r0, 0 /* no restarts */ brid sys_rt_sigreturn /* Do real work */ addik r5, r1, 0; /* add user context as 1st arg */ |