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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-05 09:03:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-05 09:03:46 -0700 |
| commit | cdd854bc42b5e6c79bbbc40c6600d995ffe6e747 (patch) | |
| tree | 18c4dcc07bbb8aeb2b23bc812cd60cc293f36cd8 /arch/powerpc/sysdev/mpic.c | |
| parent | bbc4fd12a635492ad9d12bb418124fa2d5f0d734 (diff) | |
| parent | 42a0ae2282b512d1a8f6f020327f5f7b8f31a5ea (diff) | |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (79 commits)
powerpc/8xx: Add support for the MPC8xx based boards from TQC
powerpc/85xx: Introduce support for the Freescale P1022DS reference board
powerpc/85xx: Adding DTS for the STx GP3-SSA MPC8555 board
powerpc/85xx: Change deprecated binding for 85xx-based boards
powerpc/tqm85xx: add a quirk for ti1520 PCMCIA bridge
powerpc/tqm85xx: update PCI interrupt-map attribute
powerpc/mpc8308rdb: support for MPC8308RDB board from Freescale
powerpc/fsl_pci: add quirk for mpc8308 pcie bridge
powerpc/85xx: Cleanup QE initialization for MPC85xxMDS boards
powerpc/85xx: Fix booting for P1021MDS boards
powerpc/85xx: Fix SWIOTLB initalization for MPC85xxMDS boards
powerpc/85xx: kexec for SMP 85xx BookE systems
powerpc/5200/i2c: improve i2c bus error recovery
of/xilinxfb: update tft compatible versions
powerpc/fsl-diu-fb: Support setting display mode using EDID
powerpc/5121: doc/dts-bindings: update doc of FSL DIU bindings
powerpc/5121: shared DIU framebuffer support
powerpc/5121: move fsl-diu-fb.h to include/linux
powerpc/5121: fsl-diu-fb: fix issue with re-enabling DIU area descriptor
powerpc/512x: add clock structure for Video-IN (VIU) unit
...
Diffstat (limited to 'arch/powerpc/sysdev/mpic.c')
| -rw-r--r-- | arch/powerpc/sysdev/mpic.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index 20b73c025a4..7c1342618a3 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -1636,6 +1636,24 @@ void __devinit smp_mpic_setup_cpu(int cpu) { mpic_setup_this_cpu(); } + +void mpic_reset_core(int cpu) +{ + struct mpic *mpic = mpic_primary; + u32 pir; + int cpuid = get_hard_smp_processor_id(cpu); + + /* Set target bit for core reset */ + pir = mpic_read(mpic->gregs, MPIC_INFO(GREG_PROCESSOR_INIT)); + pir |= (1 << cpuid); + mpic_write(mpic->gregs, MPIC_INFO(GREG_PROCESSOR_INIT), pir); + mpic_read(mpic->gregs, MPIC_INFO(GREG_PROCESSOR_INIT)); + + /* Restore target bit after reset complete */ + pir &= ~(1 << cpuid); + mpic_write(mpic->gregs, MPIC_INFO(GREG_PROCESSOR_INIT), pir); + mpic_read(mpic->gregs, MPIC_INFO(GREG_PROCESSOR_INIT)); +} #endif /* CONFIG_SMP */ #ifdef CONFIG_PM |