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- /* SPDX-License-Identifier: GPL-2.0-only */
- .align 32
- .globl __flushw_user
- .type __flushw_user,#function
- __flushw_user:
- rdpr %otherwin, %g1
- brz,pn %g1, 2f
- clr %g2
- 1: save %sp, -128, %sp
- rdpr %otherwin, %g1
- brnz,pt %g1, 1b
- add %g2, 1, %g2
- 1: sub %g2, 1, %g2
- brnz,pt %g2, 1b
- restore %g0, %g0, %g0
- 2: retl
- nop
- .size __flushw_user,.-__flushw_user
- EXPORT_SYMBOL(__flushw_user)
- /* Flush %fp and %i7 to the stack for all register
- * windows active inside of the cpu. This allows
- * show_stack_trace() to avoid using an expensive
- * 'flushw'.
- */
- .globl stack_trace_flush
- .type stack_trace_flush,#function
- stack_trace_flush:
- rdpr %pstate, %o0
- wrpr %o0, PSTATE_IE, %pstate
- rdpr %cwp, %g1
- rdpr %canrestore, %g2
- sub %g1, 1, %g3
- 1: brz,pn %g2, 2f
- sub %g2, 1, %g2
- wrpr %g3, %cwp
- stx %fp, [%sp + STACK_BIAS + RW_V9_I6]
- stx %i7, [%sp + STACK_BIAS + RW_V9_I7]
- ba,pt %xcc, 1b
- sub %g3, 1, %g3
- 2: wrpr %g1, %cwp
- wrpr %o0, %pstate
- retl
- nop
- .size stack_trace_flush,.-stack_trace_flush
- #ifdef CONFIG_SMP
- .globl hard_smp_processor_id
- .type hard_smp_processor_id,#function
- hard_smp_processor_id:
- #endif
- .globl real_hard_smp_processor_id
- .type real_hard_smp_processor_id,#function
- real_hard_smp_processor_id:
- __GET_CPUID(%o0)
- retl
- nop
- #ifdef CONFIG_SMP
- .size hard_smp_processor_id,.-hard_smp_processor_id
- #endif
- .size real_hard_smp_processor_id,.-real_hard_smp_processor_id
- EXPORT_SYMBOL_GPL(real_hard_smp_processor_id)
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