}
static bool pnv_iommu_bypass_disabled __read_mostly;
+static bool pci_reset_phbs __read_mostly;
static int __init iommu_setup(char *str)
{
}
early_param("iommu", iommu_setup);
+static int __init pci_reset_phbs_setup(char *str)
+{
+ pci_reset_phbs = true;
+ return 0;
+}
+
+early_param("ppc_pci_reset_phbs", pci_reset_phbs_setup);
+
static inline bool pnv_pci_is_m64(struct pnv_phb *phb, struct resource *r)
{
/*
* If we're running in kdump kernel, the previous kernel never
* shutdown PCI devices correctly. We already got IODA table
* cleaned out. So we have to issue PHB reset to stop all PCI
- * transactions from previous kernel.
+ * transactions from previous kernel. The ppc_pci_reset_phbs
+ * kernel parameter will force this reset too.
*/
- if (is_kdump_kernel()) {
+ if (is_kdump_kernel() || pci_reset_phbs) {
pr_info(" Issue PHB reset ...\n");
pnv_eeh_phb_reset(hose, EEH_RESET_FUNDAMENTAL);
pnv_eeh_phb_reset(hose, EEH_RESET_DEACTIVATE);