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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-11-12 02:59:04 +0300 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-11-12 02:59:04 +0300 |
| commit | 0526484aa345adbf790d1201a6f5d09be0a648a3 (patch) | |
| tree | 8da37ac2858a960e80dc59ebc4afc460935724f4 /arch/powerpc/platforms/pseries/xics.c | |
| parent | e0ea8b2c0677e6cc44a0e5b867be48867f91de5b (diff) | |
| parent | aa021baa3295fa6e3f367d80f8955dd5176656eb (diff) | |
| download | linux-0526484aa345adbf790d1201a6f5d09be0a648a3.tar.xz | |
Merge commit 'origin/master' into next
Diffstat (limited to 'arch/powerpc/platforms/pseries/xics.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/xics.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 75935ae1a941..097e8a2a3c5d 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -18,6 +18,7 @@ #include <linux/init.h> #include <linux/radix-tree.h> #include <linux/cpu.h> +#include <linux/msi.h> #include <linux/of.h> #include <asm/firmware.h> @@ -219,6 +220,14 @@ static void xics_unmask_irq(unsigned int virq) static unsigned int xics_startup(unsigned int virq) { + /* + * The generic MSI code returns with the interrupt disabled on the + * card, using the MSI mask bits. Firmware doesn't appear to unmask + * at that level, so we do it here by hand. + */ + if (irq_to_desc(virq)->msi_desc) + unmask_msi_irq(virq); + /* unmask it */ xics_unmask_irq(virq); return 0; |