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| author | David S. Miller <davem@davemloft.net> | 2008-11-24 05:55:29 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-04 17:17:02 (GMT) |
| commit | b4f4372f96e0573d752d9e45beda02fabf716cc8 (patch) | |
| tree | 641798dfe78c1407908c68b64427cd55cdc18b34 /arch/sparc/mm/ultra.S | |
| parent | c6afec5e4d323e7b88a7d6e291a5aa021a8fcb7d (diff) | |
| download | linux-fsl-qoriq-b4f4372f96e0573d752d9e45beda02fabf716cc8.tar.xz | |
sparc64: Make %pil level 15 a pseudo-NMI.
So that we can profile code even in a local_irq_disable() section,
only write 14 (instead of 15) into the %pil register to disable IRQs.
This allows PIL level 15 to serve as a pseudo NMI.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/mm/ultra.S')
| -rw-r--r-- | arch/sparc/mm/ultra.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S index e4c146f..80c788e 100644 --- a/arch/sparc/mm/ultra.S +++ b/arch/sparc/mm/ultra.S @@ -466,7 +466,7 @@ xcall_sync_tick: .previous rdpr %pil, %g2 - wrpr %g0, 15, %pil + wrpr %g0, PIL_NORMAL_MAX, %pil sethi %hi(109f), %g7 b,pt %xcc, etrap_irq 109: or %g7, %lo(109b), %g7 @@ -688,7 +688,7 @@ xcall_kgdb_capture: .previous rdpr %pil, %g2 - wrpr %g0, 15, %pil + wrpr %g0, PIL_NORMAL_MAX, %pil sethi %hi(109f), %g7 ba,pt %xcc, etrap_irq 109: or %g7, %lo(109b), %g7 |