Make a single PCIe MSI bank shareable through CAMP OSes. The number of
MSI used by each core can be configured by dts file.
Signed-off-by: Zhao Chenhui <b26...@freescale.com>
Signed-off-by: Li Yang <le...@freescale.com>
---
arch/powerpc/sysdev/fsl_msi.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
index 712f934..61e97cb 100644
--- a/arch/powerpc/sysdev/fsl_msi.c
+++ b/arch/powerpc/sysdev/fsl_msi.c
@@ -262,6 +262,8 @@ static int __devinit fsl_of_msi_probe(struct of_device *dev,
const u32 *p;
struct fsl_msi_feature *features = match->data;
struct fsl_msi_cascade_data *cascade_data = NULL;
+ int len;
+ u32 offset;
printk(KERN_DEBUG "Setting up Freescale MSI support\n");
@@ -321,6 +323,10 @@ static int __devinit fsl_of_msi_probe(struct of_device
*dev,
err = -EINVAL;
goto error_out;
}
+ offset = 0;
+ p = of_get_property(dev->node, "msi-available-ranges", &len);
+ if (p)
+ offset = *p / IRQS_PER_MSI_REG;
count /= sizeof(u32);
for (i = 0; i < count / 2; i++) {
@@ -337,7 +343,7 @@ static int __devinit fsl_of_msi_probe(struct of_device *dev,
err = -ENOMEM;
goto error_out;
}
- cascade_data->index = i;
+ cascade_data->index = i + offset;
cascade_data->msi_data = msi;
set_irq_data(virt_msir, (void *)cascade_data);
set_irq_chained_handler(virt_msir, fsl_msi_cascade);
--
1.6.6-rc1.GIT
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