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microblaze: Save current task directly 

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2010-02-22 13:24:43 +01:00
parent b1d70c62ff
commit 8633bebc63
1 changed files with 4 additions and 8 deletions
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12
arch/microblaze/kernel/entry.S
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@ -425,8 +425,7 @@ C_ENTRY(ret_from_trap):
lwi r4, r1, PTO + PT_R4;
swi r0, r0, PER_CPU(KM); /* Now officially in user state. */
add r11, r0, CURRENT_TASK; /* Get current task ptr into r11 */
swi r11, r0, PER_CPU(CURRENT_SAVE); /* save current */
swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */
VM_OFF;
tophys(r1,r1);
RESTORE_REGS;
@ -700,8 +699,7 @@ C_ENTRY(ret_from_exc):
/* Finally, return to user state. */
1: swi r0, r0, PER_CPU(KM); /* Now officially in user state. */
add r11, r0, CURRENT_TASK; /* Get current task ptr into r11 */
swi r11, r0, PER_CPU(CURRENT_SAVE); /* save current */
swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */
VM_OFF;
tophys(r1,r1);
@ -828,8 +826,7 @@ no_intr_resched:
/* Disable interrupts, we are now committed to the state restore */
disable_irq
swi r0, r0, PER_CPU(KM); /* MS: Now officially in user state. */
add r11, r0, CURRENT_TASK;
swi r11, r0, PER_CPU(CURRENT_SAVE);
swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE);
VM_OFF;
tophys(r1,r1);
lwi r3, r1, PTO + PT_R3; /* MS: restore saved r3, r4 registers */
@ -979,8 +976,7 @@ dbtrap_call: rtbd r11, 0;
/* Finally, return to user state. */
1: swi r0, r0, PER_CPU(KM); /* Now officially in user state. */
add r11, r0, CURRENT_TASK; /* Get current task ptr into r11 */
swi r11, r0, PER_CPU(CURRENT_SAVE); /* save current */
swi CURRENT_TASK, r0, PER_CPU(CURRENT_SAVE); /* save current */
VM_OFF;
tophys(r1,r1);