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powerpc/fsl: add MSI support for the Freescale hypervisor

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Add support for vmpic-msi nodes to the fsl_msi driver.  The MSI is
virtualized by the hypervisor, so the vmpic-msi does not contain a 'reg'
property.  Instead, the driver uses hcalls.

Add support for the "msi-address-64" property to the fsl_pci driver.
The Freescale hypervisor typically puts the virtualized MSIIR register
in the page after the end of DDR, so we extend the DDR ATMU to cover it.
Any other location for MSIIR is not supported, for now.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Timur Tabi
2011-12-13 14:51:59 -06:00
committed by Kumar Gala
parent c6ca52ad32
commit 446bc1ffe4
3 changed files with 81 additions and 23 deletions
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7
arch/powerpc/sysdev/fsl_msi.h
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@@ -20,9 +20,10 @@
#define IRQS_PER_MSI_REG 32
#define NR_MSI_IRQS (NR_MSI_REG * IRQS_PER_MSI_REG)
#define FSL_PIC_IP_MASK 0x0000000F
#define FSL_PIC_IP_MPIC 0x00000001
#define FSL_PIC_IP_IPIC 0x00000002
#define FSL_PIC_IP_MASK 0x0000000F
#define FSL_PIC_IP_MPIC 0x00000001
#define FSL_PIC_IP_IPIC 0x00000002
#define FSL_PIC_IP_VMPIC 0x00000003
struct fsl_msi {
struct irq_host *irqhost;