microblaze: Remove r0_ram pointer and PTO alignment
r0_ram pool was used for saving/restoring register
content if hw exception happen. This poll was replaced by
pt_pool_space with PT_SIZE size.
Based on this change SAVE_STATE_ARG_SPACE was removed which
caused that PTO offset is zero that's why is also removed.
r0_ram space was used as scratchpad by v850. In early
Microblaze Linux developing phase was this part of code
blindly copied.
Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h
index 8eeb092..aed2a6b 100644
--- a/arch/microblaze/include/asm/processor.h
+++ b/arch/microblaze/include/asm/processor.h
@@ -155,7 +155,7 @@
# define task_regs(task) ((struct pt_regs *)task_tos(task) - 1)
# define task_pt_regs_plus_args(tsk) \
- (((void *)task_pt_regs(tsk)) - STATE_SAVE_ARG_SPACE)
+ ((void *)task_pt_regs(tsk))
# define task_sp(task) (task_regs(task)->r1)
# define task_pc(task) (task_regs(task)->pc)