| David S. Miller | 6eda3a7 | 2008-04-28 00:47:20 -0700 | [diff] [blame] | 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 |
| 18 | |
| 19 | /* Flush %fp and %i7 to the stack for all register |
| 20 | * windows active inside of the cpu. This allows |
| 21 | * show_stack_trace() to avoid using an expensive |
| 22 | * 'flushw'. |
| 23 | */ |
| 24 | .globl stack_trace_flush |
| 25 | .type stack_trace_flush,#function |
| 26 | stack_trace_flush: |
| 27 | rdpr %pstate, %o0 |
| 28 | wrpr %o0, PSTATE_IE, %pstate |
| 29 | |
| 30 | rdpr %cwp, %g1 |
| 31 | rdpr %canrestore, %g2 |
| 32 | sub %g1, 1, %g3 |
| 33 | |
| 34 | 1: brz,pn %g2, 2f |
| 35 | sub %g2, 1, %g2 |
| 36 | wrpr %g3, %cwp |
| 37 | stx %fp, [%sp + STACK_BIAS + RW_V9_I6] |
| 38 | stx %i7, [%sp + STACK_BIAS + RW_V9_I7] |
| 39 | ba,pt %xcc, 1b |
| 40 | sub %g3, 1, %g3 |
| 41 | |
| 42 | 2: wrpr %g1, %cwp |
| 43 | wrpr %o0, %pstate |
| 44 | |
| 45 | retl |
| 46 | nop |
| 47 | .size stack_trace_flush,.-stack_trace_flush |
| 48 | |
| David S. Miller | 6eda3a7 | 2008-04-28 00:47:20 -0700 | [diff] [blame] | 49 | #ifdef CONFIG_SMP |
| 50 | .globl hard_smp_processor_id |
| 51 | .type hard_smp_processor_id,#function |
| 52 | hard_smp_processor_id: |
| 53 | #endif |
| 54 | .globl real_hard_smp_processor_id |
| 55 | .type real_hard_smp_processor_id,#function |
| 56 | real_hard_smp_processor_id: |
| 57 | __GET_CPUID(%o0) |
| 58 | retl |
| 59 | nop |
| 60 | #ifdef CONFIG_SMP |
| 61 | .size hard_smp_processor_id,.-hard_smp_processor_id |
| 62 | #endif |
| 63 | .size real_hard_smp_processor_id,.-real_hard_smp_processor_id |