powerpc/fsl_msi: support vmpic msi with mpic 4.3
PATCH 1/1 powerpc/fsl_msi: support vmpic msi with mpic 4.3
The new MSI block in MPIC 4.3 added the MSIIR1 register, with a different layout, in order to support 16 MSIR registers. The msi binding was also updated so that the "reg" reflects the newly introduced MSIIR1 register. Virtual machines advertise these msi nodes by using the compatible "fsl,vmpic-msi-v4.3" so add support for it.
Signed-off-by Laurentiu Tudor <[email protected]>
Cc Scott Wood <[email protected]>
--- arch/powerpc/sysdev/fsl_msi.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
arch/powerpc/sysdev/fsl_msi.c +8 -2
@@ -180,7 +180,8 @@ static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) np =of_parse_phandle (hose->dn,"fsl,msi" ,0 );if (np) {if (of_device_is_compatible (np,"fsl,mpic-msi" ) || -of_device_is_compatible (np,"fsl,vmpic-msi" )) +of_device_is_compatible (np,"fsl,vmpic-msi" ) || +of_device_is_compatible (np,"fsl,vmpic-msi-v4.3" )) phandle = np->phandle;else { dev_err(&pdev->dev,
@@ -466,7 +467,8 @@ static int fsl_of_msi_probe(struct platform_device *dev) p =of_get_property (dev->dev.of_node,"msi-available-ranges" , &len); -if (of_device_is_compatible (dev->dev.of_node,"fsl,mpic-msi-v4.3" )) { +if (of_device_is_compatible (dev->dev.of_node,"fsl,mpic-msi-v4.3" ) || +of_device_is_compatible (dev->dev.of_node,"fsl,vmpic-msi-v4.3" )) { msi->srs_shift =MSIIR1_SRS_SHIFT ; msi->ibs_shift =MSIIR1_IBS_SHIFT ;if (p)
@@ -572,6 +574,10 @@ static const struct of_device_id fsl_of_msi_ids[] = { .compatible = "fsl,vmpic-msi", .data = &vmpic_msi_feature, }, + { + .compatible = "fsl,vmpic-msi-v4.3", + .data = &vmpic_msi_feature, + },#endif {} };
Signature · 1 line
1.9.2