[SPARC64]: Negotiate hypervisor API for PCI services. (e01c0d6d) · Commits · e / devices / android_kernel_xiaomi_nabu

arch/sparc64/kernel/pci_sun4v.c

+18 −0

Original line number	Diff line number	Diff line
		@@ -27,6 +27,9 @@

		#include "pci_sun4v.h"

		static unsigned long vpci_major = 1;
		static unsigned long vpci_minor = 1;

		#define PGLIST_NENTS (PAGE_SIZE / sizeof(u64))

		struct iommu_batch {
		@@ -1162,6 +1165,7 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node

		void sun4v_pci_init(struct device_node dp, char model_name)
		{
		static int hvapi_negotiated = 0;
		struct pci_controller_info *p;
		struct pci_pbm_info *pbm;
		struct iommu *iommu;
		@@ -1170,6 +1174,20 @@ void sun4v_pci_init(struct device_node dp, char model_name)
		u32 devhandle;
		int i;

		if (!hvapi_negotiated++) {
		int err = sun4v_hvapi_register(HV_GRP_PCI,
		vpci_major,
		&vpci_minor);

		if (err) {
		prom_printf("SUN4V_PCI: Could not register hvapi, "
		"err=%d\n", err);
		prom_halt();
		}
		printk("SUN4V_PCI: Registered hvapi major[%lu] minor[%lu]\n",
		vpci_major, vpci_minor);
		}

		prop = of_find_property(dp, "reg", NULL);
		regs = prop->value;