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authorScott Wood <scottwood@freescale.com>2013-12-14 01:15:24 (GMT)
committerScott Wood <scottwood@freescale.com>2013-12-14 01:15:24 (GMT)
commitb7c81aa3ab2ac2c140e278b6d0e9a0b95112cf0b (patch)
tree87828aaf5f82c7042bfc0307bc4ac499e10f93fb /arch/powerpc/kernel/eeh_sysfs.c
parent22c782a4b14773fab7eab3c1db54ad7ad077e9b8 (diff)
parent78fd82238d0e5716578c326404184a27ba67fd6e (diff)
downloadlinux-fsl-qoriq-b7c81aa3ab2ac2c140e278b6d0e9a0b95112cf0b.tar.xz
Merge remote-tracking branch 'linus/master' into merge
Conflicts: Documentation/hwmon/ina2xx arch/powerpc/Kconfig arch/powerpc/boot/dts/b4860emu.dts arch/powerpc/boot/dts/b4qds.dtsi arch/powerpc/boot/dts/fsl/b4si-post.dtsi arch/powerpc/boot/dts/fsl/qoriq-sec6.0-0.dtsi arch/powerpc/boot/dts/p1023rdb.dts arch/powerpc/boot/dts/t4240emu.dts arch/powerpc/boot/dts/t4240qds.dts arch/powerpc/configs/85xx/p1023_defconfig arch/powerpc/configs/corenet32_smp_defconfig arch/powerpc/configs/corenet64_smp_defconfig arch/powerpc/configs/mpc85xx_smp_defconfig arch/powerpc/include/asm/cputable.h arch/powerpc/include/asm/device.h arch/powerpc/include/asm/epapr_hcalls.h arch/powerpc/include/asm/kvm_host.h arch/powerpc/include/asm/mpic.h arch/powerpc/include/asm/pci.h arch/powerpc/include/asm/ppc-opcode.h arch/powerpc/include/asm/ppc_asm.h arch/powerpc/include/asm/reg_booke.h arch/powerpc/kernel/epapr_paravirt.c arch/powerpc/kernel/process.c arch/powerpc/kernel/prom.c arch/powerpc/kernel/setup-common.c arch/powerpc/kernel/setup_32.c arch/powerpc/kernel/setup_64.c arch/powerpc/kernel/smp.c arch/powerpc/kernel/swsusp_asm64.S arch/powerpc/kernel/swsusp_booke.S arch/powerpc/kvm/book3s_pr.c arch/powerpc/kvm/booke.c arch/powerpc/kvm/booke.h arch/powerpc/kvm/e500.c arch/powerpc/kvm/e500.h arch/powerpc/kvm/e500_emulate.c arch/powerpc/kvm/e500mc.c arch/powerpc/kvm/powerpc.c arch/powerpc/perf/e6500-pmu.c arch/powerpc/platforms/85xx/Kconfig arch/powerpc/platforms/85xx/Makefile arch/powerpc/platforms/85xx/b4_qds.c arch/powerpc/platforms/85xx/c293pcie.c arch/powerpc/platforms/85xx/corenet_ds.c arch/powerpc/platforms/85xx/corenet_ds.h arch/powerpc/platforms/85xx/p1023_rds.c arch/powerpc/platforms/85xx/p2041_rdb.c arch/powerpc/platforms/85xx/p3041_ds.c arch/powerpc/platforms/85xx/p4080_ds.c arch/powerpc/platforms/85xx/p5020_ds.c arch/powerpc/platforms/85xx/p5040_ds.c arch/powerpc/platforms/85xx/smp.c arch/powerpc/platforms/85xx/t4240_qds.c arch/powerpc/platforms/Kconfig arch/powerpc/sysdev/Makefile arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c arch/powerpc/sysdev/fsl_msi.c arch/powerpc/sysdev/fsl_pci.c arch/powerpc/sysdev/fsl_pci.h arch/powerpc/sysdev/fsl_soc.h arch/powerpc/sysdev/mpic.c arch/powerpc/sysdev/mpic_timer.c drivers/Kconfig drivers/clk/Kconfig drivers/clk/clk-ppc-corenet.c drivers/cpufreq/Kconfig.powerpc drivers/cpufreq/Makefile drivers/cpufreq/ppc-corenet-cpufreq.c drivers/crypto/caam/Kconfig drivers/crypto/caam/Makefile drivers/crypto/caam/ctrl.c drivers/crypto/caam/desc_constr.h drivers/crypto/caam/intern.h drivers/crypto/caam/jr.c drivers/crypto/caam/regs.h drivers/dma/fsldma.c drivers/hwmon/ina2xx.c drivers/iommu/Kconfig drivers/iommu/fsl_pamu.c drivers/iommu/fsl_pamu.h drivers/iommu/fsl_pamu_domain.c drivers/iommu/fsl_pamu_domain.h drivers/misc/Makefile drivers/mmc/card/block.c drivers/mmc/core/core.c drivers/mmc/host/sdhci-esdhc.h drivers/mmc/host/sdhci-pltfm.c drivers/mtd/nand/fsl_ifc_nand.c drivers/net/ethernet/freescale/gianfar.c drivers/net/ethernet/freescale/gianfar.h drivers/net/ethernet/freescale/gianfar_ethtool.c drivers/net/phy/at803x.c drivers/net/phy/phy_device.c drivers/net/phy/vitesse.c drivers/pci/msi.c drivers/staging/Kconfig drivers/staging/Makefile drivers/uio/Kconfig drivers/uio/Makefile drivers/uio/uio.c drivers/usb/host/ehci-fsl.c drivers/vfio/Kconfig drivers/vfio/Makefile include/crypto/algapi.h include/linux/iommu.h include/linux/mmc/sdhci.h include/linux/msi.h include/linux/netdev_features.h include/linux/phy.h include/linux/skbuff.h include/net/ip.h include/uapi/linux/vfio.h net/core/ethtool.c net/ipv4/route.c net/ipv6/route.c
Diffstat (limited to 'arch/powerpc/kernel/eeh_sysfs.c')
-rw-r--r--arch/powerpc/kernel/eeh_sysfs.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/eeh_sysfs.c b/arch/powerpc/kernel/eeh_sysfs.c
new file mode 100644
index 0000000..5d753d4
--- /dev/null
+++ b/arch/powerpc/kernel/eeh_sysfs.c
@@ -0,0 +1,95 @@
+/*
+ * 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 <linux/stat.h>
+#include <asm/ppc-pci.h>
+#include <asm/pci-bridge.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 eeh_dev *edev = pci_dev_to_eeh_dev(pdev); \
+ \
+ if (!edev) \
+ return 0; \
+ \
+ return sprintf(buf, _format "\n", edev->_memb); \
+} \
+static DEVICE_ATTR(_name, S_IRUGO, eeh_show_##_name, NULL);
+
+EEH_SHOW_ATTR(eeh_mode, mode, "0x%x");
+EEH_SHOW_ATTR(eeh_config_addr, config_addr, "0x%x");
+EEH_SHOW_ATTR(eeh_pe_config_addr, pe_config_addr, "0x%x");
+
+void eeh_sysfs_add_device(struct pci_dev *pdev)
+{
+ struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev);
+ int rc=0;
+
+ if (edev && (edev->mode & EEH_DEV_SYSFS))
+ return;
+
+ 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);
+
+ if (rc)
+ printk(KERN_WARNING "EEH: Unable to create sysfs entries\n");
+ else if (edev)
+ edev->mode |= EEH_DEV_SYSFS;
+}
+
+void eeh_sysfs_remove_device(struct pci_dev *pdev)
+{
+ struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev);
+
+ /*
+ * The parent directory might have been removed. We needn't
+ * continue for that case.
+ */
+ if (!pdev->dev.kobj.sd) {
+ if (edev)
+ edev->mode &= ~EEH_DEV_SYSFS;
+ return;
+ }
+
+ 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);
+
+ if (edev)
+ edev->mode &= ~EEH_DEV_SYSFS;
+}