diff options
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 23 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci.h | 4 |
2 files changed, 27 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 319ed61d674a..dc4ec7956967 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -13,6 +13,7 @@ #include <linux/kernel.h> #include <linux/pci.h> +#include <linux/debugfs.h> #include <linux/delay.h> #include <linux/string.h> #include <linux/init.h> @@ -32,6 +33,7 @@ #include <asm/iommu.h> #include <asm/tce.h> #include <asm/xics.h> +#include <asm/debug.h> #include "powernv.h" #include "pci.h" @@ -969,12 +971,33 @@ static void pnv_pci_ioda_setup_DMA(void) } } +static void pnv_pci_ioda_create_dbgfs(void) +{ +#ifdef CONFIG_DEBUG_FS + struct pci_controller *hose, *tmp; + struct pnv_phb *phb; + char name[16]; + + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { + phb = hose->private_data; + + sprintf(name, "PCI%04x", hose->global_number); + phb->dbgfs = debugfs_create_dir(name, powerpc_debugfs_root); + if (!phb->dbgfs) + pr_warning("%s: Error on creating debugfs on PHB#%x\n", + __func__, hose->global_number); + } +#endif /* CONFIG_DEBUG_FS */ +} + static void pnv_pci_ioda_fixup(void) { pnv_pci_ioda_setup_PEs(); pnv_pci_ioda_setup_seg(); pnv_pci_ioda_setup_DMA(); + pnv_pci_ioda_create_dbgfs(); + #ifdef CONFIG_EEH eeh_addr_cache_build(); eeh_init(); diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 3656a2409e9a..43906e3ab26f 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -96,6 +96,10 @@ struct pnv_phb { int removed; #endif +#ifdef CONFIG_DEBUG_FS + struct dentry *dbgfs; +#endif + #ifdef CONFIG_PCI_MSI unsigned int msi_base; unsigned int msi32_support; |