Commit 786e5b10 authored by Cédric Le Goater's avatar Cédric Le Goater Committed by Michael Ellerman
Browse files

powerpc/pseries/pci: Introduce __find_pe_total_msi() 



It will help to size the PCI MSI domain.

Signed-off-by: default avatarCédric Le Goater <clg@kaod.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210701132750.1475580-2-clg@kaod.org
parent 2ac78e0c

arch/powerpc/platforms/pseries/msi.c

+7 −2
Original line number Diff line number Diff line
@@ -164,12 +164,12 @@ static int check_req_msix(struct pci_dev *pdev, int nvec) 


/* Quota calculation */



static struct device_node *find_pe_total_msi(struct pci_dev *dev, int *total)

static struct device_node *__find_pe_total_msi(struct device_node *node, int *total)

{

	struct device_node *dn;

	const __be32 *p;



	dn = of_node_get(pci_device_to_OF_node(dev));

	dn = of_node_get(node);

	while (dn) {

		p = of_get_property(dn, "ibm,pe-total-#msi", NULL);

		if (p) {
@@ -185,6 +185,11 @@ static struct device_node *find_pe_total_msi(struct pci_dev *dev, int *total) 
	return NULL;

}



static struct device_node *find_pe_total_msi(struct pci_dev *dev, int *total)

{

	return __find_pe_total_msi(pci_device_to_OF_node(dev), total);

}



static struct device_node *find_pe_dn(struct pci_dev *dev, int *total)

{

	struct device_node *dn;