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| author | Mihai Caraman <mihai.caraman@freescale.com> | 2012-09-06 04:49:44 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-07 01:48:49 +0200 |
| commit | 0127262c01f0beb485f917c720d1d95d165dfdbf (patch) | |
| tree | 8ea17c81f09dec7c6e8bfdc8f3288ec7cfa439c6 /arch/powerpc/include/asm/paca.h | |
| parent | powerpc/booke64: Use SPRG0/3 scratch for bolted TLB miss & crit int (diff) | |
| download | linux-0127262c01f0beb485f917c720d1d95d165dfdbf.tar.xz linux-0127262c01f0beb485f917c720d1d95d165dfdbf.zip | |
powerpc: Restore VDSO information on critical exception om BookE
Critical exception on 64-bit booke uses user-visible SPRG3 as scratch.
Restore VDSO information in SPRG3 on exception prolog.
Use a common sprg3 field in PACA for all powerpc64 architectures.
Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/paca.h')
| -rw-r--r-- | arch/powerpc/include/asm/paca.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index daf813fea91f..7796519fd238 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -136,6 +136,7 @@ struct paca_struct { u8 io_sync; /* writel() needs spin_unlock sync */ u8 irq_work_pending; /* IRQ_WORK interrupt while soft-disable */ u8 nap_state_lost; /* NV GPR values lost in power7_idle */ + u64 sprg3; /* Saved user-visible sprg */ #ifdef CONFIG_PPC_POWERNV /* Pointer to OPAL machine check event structure set by the |