projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 6eda3a75 DM |
1 | .align 32 |
| 2 | .globl __flushw_user | |
| 3 | .type __flushw_user,#function | |
| 4 | __flushw_user: | |
| 5 | rdpr %otherwin, %g1 | |
| 6 | brz,pn %g1, 2f | |
| 7 | clr %g2 | |
| 8 | 1: save %sp, -128, %sp | |
| 9 | rdpr %otherwin, %g1 | |
| 10 | brnz,pt %g1, 1b | |
| 11 | add %g2, 1, %g2 | |
| 12 | 1: sub %g2, 1, %g2 | |
| 13 | brnz,pt %g2, 1b | |
| 14 | restore %g0, %g0, %g0 | |
| 15 | 2: retl | |
| 16 | nop | |
| 17 | .size __flushw_user,.-__flushw_user | |
| d3867f04 | 18 | EXPORT_SYMBOL(__flushw_user) |
| 6eda3a75 DM |
19 | |
| 20 | /* Flush %fp and %i7 to the stack for all register | |
| 21 | * windows active inside of the cpu. This allows | |
| 22 | * show_stack_trace() to avoid using an expensive | |
| 23 | * 'flushw'. | |
| 24 | */ | |
| 25 | .globl stack_trace_flush | |
| 26 | .type stack_trace_flush,#function | |
| 27 | stack_trace_flush: | |
| 28 | rdpr %pstate, %o0 | |
| 29 | wrpr %o0, PSTATE_IE, %pstate | |
| 30 | ||
| 31 | rdpr %cwp, %g1 | |
| 32 | rdpr %canrestore, %g2 | |
| 33 | sub %g1, 1, %g3 | |
| 34 | ||
| 35 | 1: brz,pn %g2, 2f | |
| 36 | sub %g2, 1, %g2 | |
| 37 | wrpr %g3, %cwp | |
| 38 | stx %fp, [%sp + STACK_BIAS + RW_V9_I6] | |
| 39 | stx %i7, [%sp + STACK_BIAS + RW_V9_I7] | |
| 40 | ba,pt %xcc, 1b | |
| 41 | sub %g3, 1, %g3 | |
| 42 | ||
| 43 | 2: wrpr %g1, %cwp | |
| 44 | wrpr %o0, %pstate | |
| 45 | ||
| 46 | retl | |
| 47 | nop | |
| 48 | .size stack_trace_flush,.-stack_trace_flush | |
| 49 | ||
| 50 | #ifdef CONFIG_SMP | |
| 51 | .globl hard_smp_processor_id | |
| 52 | .type hard_smp_processor_id,#function | |
| 53 | hard_smp_processor_id: | |
| 54 | #endif | |
| 55 | .globl real_hard_smp_processor_id | |
| 56 | .type real_hard_smp_processor_id,#function | |
| 57 | real_hard_smp_processor_id: | |
| 58 | __GET_CPUID(%o0) | |
| 59 | retl | |
| 60 | nop | |
| 61 | #ifdef CONFIG_SMP | |
| 62 | .size hard_smp_processor_id,.-hard_smp_processor_id | |
| 63 | #endif | |
| 64 | .size real_hard_smp_processor_id,.-real_hard_smp_processor_id | |
| d3867f04 | 65 | EXPORT_SYMBOL_GPL(real_hard_smp_processor_id) |