diff options
Diffstat (limited to 'arch/powerpc/platforms/powernv')
| -rw-r--r-- | arch/powerpc/platforms/powernv/Makefile | 1 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/eeh-ioda.c | 45 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci.h | 23 |
3 files changed, 69 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile index bcc3cb48a44e..09bd0cbb7c4f 100644 --- a/arch/powerpc/platforms/powernv/Makefile +++ b/arch/powerpc/platforms/powernv/Makefile @@ -3,3 +3,4 @@ obj-y += opal-rtc.o opal-nvram.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_PCI) += pci.o pci-p5ioc2.o pci-ioda.o +obj-$(CONFIG_EEH) += eeh-ioda.o diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c new file mode 100644 index 000000000000..f12e8887b144 --- /dev/null +++ b/arch/powerpc/platforms/powernv/eeh-ioda.c @@ -0,0 +1,45 @@ +/* + * The file intends to implement the functions needed by EEH, which is + * built on IODA compliant chip. Actually, lots of functions related + * to EEH would be built based on the OPAL APIs. + * + * Copyright Benjamin Herrenschmidt & Gavin Shan, IBM Corporation 2013. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/bootmem.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/kernel.h> +#include <linux/msi.h> +#include <linux/pci.h> +#include <linux/string.h> + +#include <asm/eeh.h> +#include <asm/eeh_event.h> +#include <asm/io.h> +#include <asm/iommu.h> +#include <asm/msi_bitmap.h> +#include <asm/opal.h> +#include <asm/pci-bridge.h> +#include <asm/ppc-pci.h> +#include <asm/tce.h> + +#include "powernv.h" +#include "pci.h" + +struct pnv_eeh_ops ioda_eeh_ops = { + .post_init = NULL, + .set_option = NULL, + .get_state = NULL, + .reset = NULL, + .get_log = NULL, + .configure_bridge = NULL, + .next_error = NULL +}; diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 25d76c4df50b..336c9dc1b314 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -66,15 +66,35 @@ struct pnv_ioda_pe { struct list_head list; }; +/* IOC dependent EEH operations */ +#ifdef CONFIG_EEH +struct pnv_eeh_ops { + int (*post_init)(struct pci_controller *hose); + int (*set_option)(struct eeh_pe *pe, int option); + int (*get_state)(struct eeh_pe *pe); + int (*reset)(struct eeh_pe *pe, int option); + int (*get_log)(struct eeh_pe *pe, int severity, + char *drv_log, unsigned long len); + int (*configure_bridge)(struct eeh_pe *pe); + int (*next_error)(struct eeh_pe **pe); +}; +#endif /* CONFIG_EEH */ + struct pnv_phb { struct pci_controller *hose; enum pnv_phb_type type; enum pnv_phb_model model; + u64 hub_id; u64 opal_id; void __iomem *regs; int initialized; spinlock_t lock; +#ifdef CONFIG_EEH + struct pnv_eeh_ops *eeh_ops; + int eeh_enabled; +#endif + #ifdef CONFIG_PCI_MSI unsigned int msi_base; unsigned int msi32_support; @@ -150,6 +170,9 @@ struct pnv_phb { }; extern struct pci_ops pnv_pci_ops; +#ifdef CONFIG_EEH +extern struct pnv_eeh_ops ioda_eeh_ops; +#endif extern void pnv_pci_setup_iommu_table(struct iommu_table *tbl, void *tce_mem, u64 tce_size, |