[POWERPC] Add EEH sysfs blinkenlights (e1d04c97) · Commits · e / devices / android_kernel_teracube_emerald

arch/powerpc/platforms/pseries/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -8,7 +8,7 @@ obj-y := lpar.o hvCall.o nvram.o reconfig.o \
		obj-$(CONFIG_SMP) += smp.o
		obj-$(CONFIG_XICS) += xics.o
		obj-$(CONFIG_SCANLOG) += scanlog.o
		obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o
		obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o eeh_sysfs.o
		obj-$(CONFIG_KEXEC) += kexec.o
		obj-$(CONFIG_PCI) += pci.o pci_dlpar.o
		obj-$(CONFIG_PCI_MSI) += msi.o

arch/powerpc/platforms/pseries/eeh.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -1140,6 +1140,7 @@ static void eeh_add_device_late(struct pci_dev *dev)
		pdn->pcidev = dev;

		pci_addr_cache_insert_device(dev);
		eeh_sysfs_add_device(dev);
		}

		void eeh_add_device_tree_late(struct pci_bus *bus)
		@@ -1178,6 +1179,7 @@ static void eeh_remove_device(struct pci_dev *dev)
		printk(KERN_DEBUG "EEH: remove device %s\n", pci_name(dev));
		#endif
		pci_addr_cache_remove_device(dev);
		eeh_sysfs_remove_device(dev);

		dn = pci_device_to_OF_node(dev);
		if (PCI_DN(dn)->pcidev) {

arch/powerpc/platforms/pseries/eeh_cache.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -295,6 +295,8 @@ void __init pci_addr_cache_build(void)
		continue;
		pci_dev_get (dev); /* matching put is in eeh_remove_device() */
		PCI_DN(dn)->pcidev = dev;

		eeh_sysfs_add_device(dev);
		}

		#ifdef DEBUG

arch/powerpc/platforms/pseries/eeh_sysfs.c

0 → 100644

+84 −0

Original line number	Diff line number	Diff line
		/*
		* Sysfs entries for PCI Error Recovery for PAPR-compliant platform.
		* Copyright IBM Corporation 2007
		* Copyright Linas Vepstas <linas@austin.ibm.com> 2007
		*
		* All rights reserved.
		*
		* 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.
		*
		* This program is distributed in the hope that it will be useful, but
		* WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
		* NON INFRINGEMENT. See the GNU General Public License for more
		* details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the Free Software
		* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
		*
		* Send comments and feedback to Linas Vepstas <linas@austin.ibm.com>
		*/
		#include <linux/pci.h>
		#include <asm/ppc-pci.h>
		#include <asm/pci-bridge.h>
		#include <linux/kobject.h>

		/**
		* EEH_SHOW_ATTR -- create sysfs entry for eeh statistic
		* @_name: name of file in sysfs directory
		* @_memb: name of member in struct pci_dn to access
		* @_format: printf format for display
		*
		* All of the attributes look very similar, so just
		* auto-gen a cut-n-paste routine to display them.
		*/
		#define EEH_SHOW_ATTR(_name,_memb,_format) \
		static ssize_t eeh_show_##_name(struct device *dev, \
		struct device_attribute attr, char buf) \
		{ \
		struct pci_dev *pdev = to_pci_dev(dev); \
		struct device_node *dn = pci_device_to_OF_node(pdev); \
		struct pci_dn *pdn; \
		\
		if (!dn \|\| PCI_DN(dn) == NULL) \
		return 0; \
		\
		pdn = PCI_DN(dn); \
		return sprintf(buf, _format "\n", pdn->_memb); \
		} \
		static DEVICE_ATTR(_name, S_IRUGO, eeh_show_##_name, NULL);


		EEH_SHOW_ATTR(eeh_mode, eeh_mode, "0x%x");
		EEH_SHOW_ATTR(eeh_config_addr, eeh_config_addr, "0x%x");
		EEH_SHOW_ATTR(eeh_pe_config_addr, eeh_pe_config_addr, "0x%x");
		EEH_SHOW_ATTR(eeh_check_count, eeh_check_count, "%d");
		EEH_SHOW_ATTR(eeh_freeze_count, eeh_freeze_count, "%d");

		void eeh_sysfs_add_device(struct pci_dev *pdev)
		{
		int rc=0;

		rc += device_create_file(&pdev->dev, &dev_attr_eeh_mode);
		rc += device_create_file(&pdev->dev, &dev_attr_eeh_config_addr);
		rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
		rc += device_create_file(&pdev->dev, &dev_attr_eeh_check_count);
		rc += device_create_file(&pdev->dev, &dev_attr_eeh_freeze_count);

		if (rc)
		printk(KERN_WARNING "EEH: Unable to create sysfs entries\n");
		}

		void eeh_sysfs_remove_device(struct pci_dev *pdev)
		{
		device_remove_file(&pdev->dev, &dev_attr_eeh_mode);
		device_remove_file(&pdev->dev, &dev_attr_eeh_config_addr);
		device_remove_file(&pdev->dev, &dev_attr_eeh_pe_config_addr);
		device_remove_file(&pdev->dev, &dev_attr_eeh_check_count);
		device_remove_file(&pdev->dev, &dev_attr_eeh_freeze_count);
		}

arch/powerpc/platforms/pseries/pci_dlpar.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -110,8 +110,6 @@ pcibios_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus)
		}
		}
		}

		eeh_add_device_tree_late(bus);
		}
		EXPORT_SYMBOL_GPL(pcibios_fixup_new_pci_devices);

		@@ -139,6 +137,8 @@ pcibios_pci_config_bridge(struct pci_dev *dev)

		/* Make the discovered devices available */
		pci_bus_add_devices(child_bus);

		eeh_add_device_tree_late(child_bus);
		return 0;
		}

		@@ -171,6 +171,7 @@ pcibios_add_pci_devices(struct pci_bus * bus)
		if (!list_empty(&bus->devices)) {
		pcibios_fixup_new_pci_devices(bus, 0);
		pci_bus_add_devices(bus);
		eeh_add_device_tree_late(bus);
		}
		} else if (mode == PCI_PROBE_NORMAL) {
		/* use legacy probe */
		@@ -179,6 +180,7 @@ pcibios_add_pci_devices(struct pci_bus * bus)
		if (num) {
		pcibios_fixup_new_pci_devices(bus, 1);
		pci_bus_add_devices(bus);
		eeh_add_device_tree_late(bus);
		}

		list_for_each_entry(dev, &bus->devices, bus_list)
		@@ -210,6 +212,7 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
		scan_phb(phb);
		pcibios_fixup_new_pci_devices(phb->bus, 0);
		pci_bus_add_devices(phb->bus);
		eeh_add_device_tree_late(phb->bus);

		return phb;
		}