xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

microblaze: handle TIF_NOTIFY_RESUME

Browse Source 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-04-24 02:03:06 -04:00
parent 1d5d4dbe81
commit 969a961680
3 changed files with 38 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
arch/microblaze/kernel/entry.S
View File

@@ -430,12 +430,12 @@ C_ENTRY(ret_from_trap):
5: /* get thread info from current task*/
lwi r11, CURRENT_TASK, TS_THREAD_INFO;
lwi r11, r11, TI_FLAGS; /* get flags in thread info */
andi r11, r11, _TIF_SIGPENDING;
andi r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
beqi r11, 1f; /* Signals to handle, handle them */
addik r5, r1, 0; /* Arg 1: struct pt_regs *regs */
addi r7, r0, 1; /* Arg 3: int in_syscall */
bralid r15, do_signal; /* Handle any signals */
bralid r15, do_notify_resume; /* Handle any signals */
add r6, r0, r0; /* Arg 2: sigset_t *oldset */
/* Finally, return to user state. */
@@ -622,7 +622,7 @@ C_ENTRY(ret_from_exc):
/* Maybe handle a signal */
5: lwi r11, CURRENT_TASK, TS_THREAD_INFO; /* get thread info */
lwi r11, r11, TI_FLAGS; /* get flags in thread info */
andi r11, r11, _TIF_SIGPENDING;
andi r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
beqi r11, 1f; /* Signals to handle, handle them */
/*
@@ -635,10 +635,10 @@ C_ENTRY(ret_from_exc):
* traps), but signal handlers may want to examine or change the
* complete register state. Here we save anything not saved by
* the normal entry sequence, so that it may be safely restored
* (in a possibly modified form) after do_signal returns. */
* (in a possibly modified form) after do_notify_resume returns. */
addik r5, r1, 0; /* Arg 1: struct pt_regs *regs */
addi r7, r0, 0; /* Arg 3: int in_syscall */
bralid r15, do_signal; /* Handle any signals */
bralid r15, do_notify_resume; /* Handle any signals */
add r6, r0, r0; /* Arg 2: sigset_t *oldset */
/* Finally, return to user state. */
@@ -732,12 +732,12 @@ ret_from_irq:
/* Maybe handle a signal */
5: lwi r11, CURRENT_TASK, TS_THREAD_INFO; /* MS: get thread info */
lwi r11, r11, TI_FLAGS; /* get flags in thread info */
andi r11, r11, _TIF_SIGPENDING;
andi r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
beqid r11, no_intr_resched
/* Handle a signal return; Pending signals should be in r18. */
addi r7, r0, 0; /* Arg 3: int in_syscall */
addik r5, r1, 0; /* Arg 1: struct pt_regs *regs */
bralid r15, do_signal; /* Handle any signals */
bralid r15, do_notify_resume; /* Handle any signals */
add r6, r0, r0; /* Arg 2: sigset_t *oldset */
/* Finally, return to user state. */
@@ -869,12 +869,12 @@ dbtrap_call: /* Return point for kernel/user entry + 8 because of rtsd r15, 8 */
/* Maybe handle a signal */
5: lwi r11, CURRENT_TASK, TS_THREAD_INFO; /* get thread info */
lwi r11, r11, TI_FLAGS; /* get flags in thread info */
andi r11, r11, _TIF_SIGPENDING;
andi r11, r11, _TIF_SIGPENDING | _TIF_NOTIFY_RESUME;
beqi r11, 1f; /* Signals to handle, handle them */
addik r5, r1, 0; /* Arg 1: struct pt_regs *regs */
addi r7, r0, 0; /* Arg 3: int in_syscall */
bralid r15, do_signal; /* Handle any signals */
bralid r15, do_notify_resume; /* Handle any signals */
add r6, r0, r0; /* Arg 2: sigset_t *oldset */
/* Finally, return to user state. */