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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-07 16:34:40 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-07 16:34:40 (GMT) |
commit | c818c778b0384e5d9e8184ec43b73e05a7ced86f (patch) | |
tree | 2d50257ac6f94448f1dfe2bb65b4ff5aa383fe4a /arch/powerpc/sysdev/mpic.c | |
parent | c8de2fa4dc2778ae3605925c127b3deac54b2b3a (diff) | |
parent | 5737789c8340620d7b542d1d4e9b197de8eb2801 (diff) | |
download | linux-fsl-qoriq-c818c778b0384e5d9e8184ec43b73e05a7ced86f.tar.xz |
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Benjamin Herrenschmidt:
"Here are a few more powerpc bits that I would like in 3.10.
Mostly remaining bolts & screw tightening of power8 support such as
actually exposing the new features via the previously added AT_HWCAP2,
and a few fixes, some of them for problems exposed recently like
irqdomain warnings or sysfs access permission issues, some exposed by
power8 hardware.
The only change outside of arch/powerpc is a small one to irqdomain.c
to allow silent failure to fix a problem on Cell where we get a dozen
WARN_ON's tripping at boot for what is basically a normal case."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Make hard_irq_disable() do the right thing vs. irq tracing
powerpc/topology: Fix spurr attribute permission
powerpc/pci: Support per-aperture memory offset
powerpc/cell/iommu: Improve error message for missing node
powerpc/cell/spufs: Fix status attribute permission
irqdomain: Allow quiet failure mode
powerpc/pnv: Fix "compatible" property for P8 PHB
powerpc/pci: Don't add bogus empty resources to PHBs
powerpc/powerpnv: Properly handle failure starting CPUs
powerpc/cputable: Advertise support for ISEL/HTM/DSCR/TAR on POWER8
powerpc/cputable: Advertise ISEL support on appropriate embedded processors
powerpc/cputable: Advertise DSCR support on P7/P7+
powerpc/cputable: Reserve bits in HWCAP2 for new features
powerpc/pseries: Perform proper max_bus_speed detection
powerpc/pseries: Force 32 bit MSIs for devices that require it
powerpc/tm: Fix null pointer deference in flush_hash_page
powerpc/powernv: Defer OPAL exception handler registration
powerpc: Emulate non privileged DSCR read and write
Diffstat (limited to 'arch/powerpc/sysdev/mpic.c')
-rw-r--r-- | arch/powerpc/sysdev/mpic.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index d30e6a6..ee21b5e 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c @@ -1001,8 +1001,12 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq, if (hw == mpic->spurious_vec) return -EINVAL; - if (mpic->protected && test_bit(hw, mpic->protected)) - return -EINVAL; + if (mpic->protected && test_bit(hw, mpic->protected)) { + pr_warning("mpic: Mapping of source 0x%x failed, " + "source protected by firmware !\n",\ + (unsigned int)hw); + return -EPERM; + } #ifdef CONFIG_SMP else if (hw >= mpic->ipi_vecs[0]) { @@ -1029,8 +1033,12 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq, if (mpic_map_error_int(mpic, virq, hw)) return 0; - if (hw >= mpic->num_sources) + if (hw >= mpic->num_sources) { + pr_warning("mpic: Mapping of source 0x%x failed, " + "source out of range !\n",\ + (unsigned int)hw); return -EINVAL; + } mpic_msi_reserve_hwirq(mpic, hw); |