提交 25f6e596 编写于 作者: M Michal Simek

microblaze: Fix _user_exception function

Saving some instructions. Clear VMS bit if kernel comes
from kernel space.
Signed-off-by: NMichal Simek <monstr@monstr.eu>
上级 287503fa
无相关合并请求
......@@ -352,6 +352,7 @@ C_ENTRY(_user_exception):
swi r0, r1, PTO + PT_MODE; /* Was in user-mode. */
lwi r11, r0, TOPHYS(PER_CPU(ENTRY_SP));
swi r11, r1, PTO+PT_R1; /* Store user SP. */
clear_ums;
2: lwi CURRENT_TASK, r0, TOPHYS(PER_CPU(CURRENT_SAVE));
/* Save away the syscall number. */
swi r12, r1, PTO+PT_R0;
......@@ -363,10 +364,8 @@ C_ENTRY(_user_exception):
* register should point to the location where
* the called function should return. [note that MAKE_SYS_CALL uses label 1] */
# Step into virtual mode.
set_vms;
addik r11, r0, 3f
rtid r11, 0
/* Step into virtual mode */
rtbd r0, 3f
nop
3:
lwi r11, CURRENT_TASK, TS_THREAD_INFO /* get thread info */
......
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