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path: root/arch/powerpc/sysdev/fsl_msi.h
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2008-08-20powerpc: Convert the FSL MSI code to use msi_bitmapMichael Ellerman
This is 90% straight forward, although we have to change a few printk format strings as well because of the change in type of hwirq. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-20powerpc: fsl_msi doesn't need it's own of_nodeMichael Ellerman
The FSL MSI code keeps a pointer to the of_node from the device it represents. However it also has an irq_host, which contains a pointer to the of_node, so use that one instead. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-02[POWERPC] fsl: PCIe MSI support for 83xx/85xx/86xx processors.Jason Jin
This MSI driver can be used on 83xx/85xx/86xx board. In this driver, virtual interrupt host and chip were setup. There are 256 MSI interrupts in this host, Every 32 MSI interrupts cascaded to one IPIC/MPIC interrupt. The chip was treated as edge sensitive and some necessary functions were setup for this chip. Before using the MSI interrupt, PCI/PCIE device need to ask for a MSI interrupt in the 256 MSI interrupts. A 256bit bitmap show which MSI interrupt was used, reserve bit in the bitmap can be used to force the device use some designate MSI interrupt in the 256 MSI interrupts. Sometimes this is useful for testing the all the MSI interrupts. The msi-available-ranges property in the dts file was used for this purpose. Signed-off-by: Jason Jin <Jason.jin@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>