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| * edac: reduce stack pressure by using a pre-allocated bufferMauro Carvalho Chehab2013-02-21
| | | | | | | | | | | | | | | | The number of variables at the stack is too big. Reduces the stack usage by using a pre-allocated error buffer. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * edac: lock module owner to avoid error report conflictsMauro Carvalho Chehab2013-02-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | APEI GHES and i7core_edac/sb_edac currently can be loaded at the same time, but those are Highlander modules: "There can be only one". There are two reasons for that: 1) Each driver assumes that it is the only one registering at the EDAC core, as it is driver's responsibility to number the memory controllers, and all of them start from 0; 2) If BIOS is handling the memory errors, the OS can't also be doing it, as one will mangle with the other. So, we need to add an module owner's lock at the EDAC core, in order to avoid having two different modules handling memory errors at the same time. The best way for doing this lock seems to use the driver's name, as this is unique, and won't require changes on every driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * edac: add a new memory layer typeMauro Carvalho Chehab2013-02-21
| | | | | | | | | | | | | | | | | | There are some cases where the memory controller layout is completely hidden. This is the case of firmware-driven error code, like the one provided by GHES. Add a new layer to be used on such memory error report mechanisms. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * edac: initialize the core earlierMauro Carvalho Chehab2013-02-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order for it to work with it builtin, the EDAC core should be initialized earlier, otherwise the ghes_edac driver initializes before edac_mc_sysfs_init() being called: ... [ 4.998373] EDAC MC0: Giving out device to 'ghes_edac.c' 'ghes_edac': DEV ghes ... [ 4.998373] EDAC MC1: Giving out device to 'ghes_edac.c' 'ghes_edac': DEV ghes [ 6.519495] EDAC MC: Ver: 3.0.0 [ 6.523749] EDAC DEBUG: edac_mc_sysfs_init: device mc created The net result is that no EDAC sysfs nodes will appear. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * edac: better report error conditions in debug modeMauro Carvalho Chehab2013-02-21
| | | | | | | | | | | | | | It is hard to find what's wrong without a proper error report. Improve it, in debug mode. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * i5100_edac: Remove two checkpatch warningsMauro Carvalho Chehab2013-02-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The last changeset introduced a few checkpatch warnings: WARNING: debugfs_remove_recursive(NULL) is safe this check is probably not required 261: FILE: drivers/edac/i5100_edac.c:1207: + if (priv->debugfs) + debugfs_remove_recursive(priv->debugfs); WARNING: debugfs_remove(NULL) is safe this check is probably not required 290: FILE: drivers/edac/i5100_edac.c:1250: + if (i5100_debugfs) + debugfs_remove(i5100_debugfs); Get rid of them. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * i5100_edac: connect fault injection to debugfs nodeNiklas Söderlund2013-02-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a debugfs direcotry i5100_edac/mcX for each memory controller and add nodes to control how fault injection is preformed. After configuring an injection using inject_channel, inject_deviceptr1, inject_deviceptr2, inject_eccmask1, inject_eccmask2 and inject_hlinesel trigger the injection by writing anything to inject_enable. Example of a CE injection: echo 0 > /sys/kernel/debug/i5100_edac/mc0/inject_channel echo 1 > /sys/kernel/debug/i5100_edac/mc0/inject_hlinesel echo 61440 > /sys/kernel/debug/i5100_edac/mc0/inject_eccmask1 echo 1 > /sys/kernel/debug/i5100_edac/mc0/inject_enable Example of UE injection: echo 0 > /sys/kernel/debug/i5100_edac/mc0/inject_channel echo 2 > /sys/kernel/debug/i5100_edac/mc0/inject_hlinesel echo 65535 > /sys/kernel/debug/i5100_edac/mc0/inject_eccmask1 echo 65535 > /sys/kernel/debug/i5100_edac/mc0/inject_eccmask2 echo 17 > /sys/kernel/debug/i5100_edac/mc0/inject_deviceptr1 echo 0 > /sys/kernel/debug/i5100_edac/mc0/inject_deviceptr2 echo 1 > /sys/kernel/debug/i5100_edac/mc0/inject_enable Sometimes it is needed to enable the injection more then once (echo to the inject_enable node) for the injection to happen, I am not sure why. Signed-off-by: Niklas Söderlund <niklas.soderlund@ericsson.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * i5100_edac: add fault injection codeNiklas Söderlund2013-02-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add fault injection based on information datasheet for i5100, see 1. In addition to the i5100 datasheet some missing information on injection functions where found through experimentation and the i7300 datasheet, see 2. [1] Intel 5100 Memory Controller Hub Chipset Doc.Nr: 318378 http://www.intel.com/content/dam/doc/datasheet/5100- memory-controller-hub-chipset-datasheet.pdf [2] Intel 7300 Chipset MemoryController Hub (MCH) Doc.Nr: 318082 http://www.intel.com/assets/pdf/datasheet/318082.pdf Signed-off-by: Niklas Söderlund <niklas.soderlund@ericsson.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * i5100_edac: probe for device 19 function 0Niklas Söderlund2013-02-21
| | | | | | | | | | | | | | | | Probe and store the device handle for the device 19 function 0 during driver initialization. The device is used during fault injection. Signed-off-by: Niklas Söderlund <niklas.soderlund@ericsson.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * edac: only create sdram_scrub_rate where supportedMauro Carvalho Chehab2013-02-21
| | | | | | | | | | | | | | | | | | | | | | Currently, sdram_scrub_rate sysfs node is created even if the device doesn't support get/set the scub rate. Change the logic to only create this device node when the operation is supported. Reported-by: Felipe Balbi <balbi@ti.com> Acked-by: Borislav Petkov <bp@suse.de> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * i3200_edac: Fix the logic that detects filled memoriesMauro Carvalho Chehab2013-02-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After running a series of tests on an HP DL320, filled with different memory sizes, it was noticed that, when filled with just one DIMM on such hardware, the driver wrongly detects twice the memory, and thinks that both channels 0 and 1 are filled. It seems to be partially caused by the BIOS and partially by the driver. The i3200_edac current logic would be working fine if the BIOS were disabling the unused second channel when just one DIMM is connected, in order to do power-saving, as recommended on this chipset's datasheet. However, the BIOS on this particular machine doesn't do it: [ 16.741421] EDAC DEBUG: how_many_channels: In dual channel mode [ 16.741424] EDAC DEBUG: how_many_channels: 2 DIMMS per channel enabled So, the driver were assuming that 2 channels are enabled (well, they are, but the second is unused). Combined with that, I found two issues at the logic that creates the EDAC data, that were failing when the two channels are not equally filled (AFAICT, that happens only when just 1 DIMM is plugged). The first one is that a 0 at DRB means that nothing is filled. The driver's logic, however, do some calculation with that. The second one is that the logic that fills the DIMM data currently assumes that both channels are equally filled. I tested the system already with the current configuration and my patch and it is now working fine. So, for a 2R single DIMM 2Gb memory at dimm slot 01 (channel 0), it is now displaying: [ 16.741406] EDAC DEBUG: i3200_get_drbs: drb[0][0] = 16, drb[1][0] = 0 [ 16.741410] EDAC DEBUG: i3200_get_drbs: drb[0][1] = 32, drb[1][1] = 0 [ 16.741413] EDAC DEBUG: i3200_get_drbs: drb[0][2] = 32, drb[1][2] = 0 [ 16.741416] EDAC DEBUG: i3200_get_drbs: drb[0][3] = 32, drb[1][3] = 0 ... [ 16.741896] EDAC DEBUG: i3200_probe1: csrow 0, channel 0, size = 1024 Mb [ 16.741899] EDAC DEBUG: i3200_probe1: csrow 1, channel 0, size = 1024 Mb and the corresponding sysfs nodes are now properly filled. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * i3200_edac: Add more debug to the driverMauro Carvalho Chehab2013-02-21
| | | | | | | | | | | | | | | | | | | | | | Currently, it is not possible to know, when debug is enabled, if the driver is using 2 DIMMS per channel mode or not. It is not possible to know the values of the drbs registers, used to identify the memory rank sizes. Add debug for both, as it helps to track issues on the driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * Merge tag 'v3.8-rc7' into nextMauro Carvalho Chehab2013-02-20
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linux 3.8-rc7 * tag 'v3.8-rc7': (12052 commits) Linux 3.8-rc7 net: sctp: sctp_endpoint_free: zero out secret key data net: sctp: sctp_setsockopt_auth_key: use kzfree instead of kfree atm/iphase: rename fregt_t -> ffreg_t ARM: 7641/1: memory: fix broken mmap by ensuring TASK_UNMAPPED_BASE is aligned ARM: DMA mapping: fix bad atomic test ARM: realview: ensure that we have sufficient IRQs available ARM: GIC: fix GIC cpumask initialization net: usb: fix regression from FLAG_NOARP code l2tp: dont play with skb->truesize net: sctp: sctp_auth_key_put: use kzfree instead of kfree netback: correct netbk_tx_err to handle wrap around. xen/netback: free already allocated memory on failure in xen_netbk_get_requests xen/netback: don't leak pages on failure in xen_netbk_tx_check_gop. xen/netback: shutdown the ring if it contains garbage. drm/ttm: fix fence locking in ttm_buffer_object_transfer, 2nd try virtio_console: Don't access uninitialized data. net: qmi_wwan: add more Huawei devices, including E320 net: cdc_ncm: add another Huawei vendor specific device ipv6/ip6_gre: fix error case handling in ip6gre_tunnel_xmit() ...
| * | i7core_edac: fix kernel crash on unloading i7core_edac.Lans Zhang2012-12-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is easy to trigger this crash on 3.7.0: root@intel_westmere_ep-3:~# modprobe -r i7core_edac EDAC PCI: Removed device 0 for i7core_edac EDAC PCI controller: DEV 0000:fe:03.0 EDAC MC: Removed device 1 for i7core_edac.c i7 core #1: DEV 0000:fe:03.0 EDAC PCI: Removed device 1 for i7core_edac EDAC PCI controller: DEV 0000:ff:03.0 EDAC MC: Removed device 0 for i7core_edac.c i7 core #0: DEV 0000:ff:03.0 BUG: unable to handle kernel NULL pointer dereference at 0000000000000110 IP: [<ffffffff82069ee9>] __blocking_notifier_call_chain+0x29/0x80 PGD 1eaae7067 PUD 1e96e4067 PMD 0 Oops: 0000 [#1] PREEMPT SMP Modules linked in: minix acpi_cpufreq freq_table mperf ioatdma processor edac_core(-) iTCO_wdt coretemp evdev hwmon lpc_ich dca mfd_core crc32c_intel ioapic [last unloaded: i7core_edac] CPU 3 Pid: 1268, comm: modprobe Not tainted 3.7.0-WR5.0.1.0_standard+ #30 Intel Corporation S5520HC/S5520HC RIP: 0010:[<ffffffff82069ee9>] [<ffffffff82069ee9>] __blocking_notifier_call_chain+0x29/0x80 RSP: 0018:ffff8801eb12de28 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00000000000000f0 RCX: 00000000ffffffff RDX: ffff88012b452800 RSI: 0000000000000002 RDI: 00000000000000f0 RBP: ffff8801eb12de68 R08: 0000000000000000 R09: ffffea0004ad1118 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8801eb12dee8 R14: ffff88012b452800 R15: 000000000060e518 FS: 00007f9ea95a9700(0000) GS:ffff8801efc20000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000110 CR3: 00000001262f1000 CR4: 00000000000007e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process modprobe (pid: 1268, threadinfo ffff8801eb12c000, task ffff8801e8421690) Stack: ffff88012c802a00 ffff88012b445ec0 ffff88012c802300 ffff88012b452800 0000000000000000 ffff8801eb12dee8 000000000060e080 000000000060e518 ffff8801eb12de78 ffffffff82069f56 ffff8801eb12dea8 ffffffff824ead7c Call Trace: [<ffffffff82069f56>] blocking_notifier_call_chain+0x16/0x20 [<ffffffff824ead7c>] device_del+0x3c/0x1d0 [<ffffffffa00095a8>] edac_mc_sysfs_exit+0x1c/0x2f [edac_core] [<ffffffffa000961c>] edac_exit+0x4f/0x56 [edac_core] [<ffffffff820a3d2a>] sys_delete_module+0x17a/0x240 [<ffffffff8212da7c>] ? vm_munmap+0x5c/0x80 [<ffffffff82877682>] system_call_fastpath+0x16/0x1b Code: 90 90 55 48 89 e5 48 83 ec 40 48 89 5d d8 4c 89 65 e0 4c 89 6d e8 4c 89 75 f0 4c 89 7d f8 66 66 66 66 90 31 c0 49 89 d6 48 89 fb <48> 8b 57 20 49 89 f5 41 89 cf 4c 8d 67 20 48 85 d2 74 2c 4c 89 RIP [<ffffffff82069ee9>] __blocking_notifier_call_chain+0x29/0x80 RSP <ffff8801eb12de28> CR2: 0000000000000110 ---[ end trace b69acf12ccad1c0d ]--- Usually, edac_subsys is grabbed one time by pci at initialization. But edac_subsys may be released several times if multiple pci MCs exist. The fix just makes the operations balanced. Signed-off-by: Lans Zhang <jia.zhang@windriver.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | i7core_edac: fix erroneous size of static arrayNiklas Söderlund2012-12-21
| | | | | | | | | | | | | | | | | | | | | | | | Remove size from lookup arrays and mark them as const. Reviewed-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Niklas Söderlund <niso@kth.se> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | sb_edac: add a missing /n on a debug messageMauro Carvalho Chehab2012-12-21
| | | | | | | | | | | | | | | | | | [ 17.024963] EDAC DEBUG: get_memory_layout: TOHM: 132.160 GB (0x0000002043ffffff)<7>[ 17.024971] EDAC DEBUG: get_memory_layout: SAD#0 DRAM up to 33.792 GB (0x0000000840000000) Interleave: 8:6 reg=0x000083c3 Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| * | edac: edac_mc no longer deals with kobjects directlyShaun Ruffell2012-12-21
| | | | | | | | | | | | | | | | | | | | | | | | There are no more embedded kobjects in struct mem_ctl_info. Remove a header and a comment that does not reflect the code anymore. Signed-off-by: Shaun Ruffell <sruffell@digium.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* | | Merge tag 'driver-core-3.9-rc1' of ↵Linus Torvalds2013-02-21
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core patches from Greg Kroah-Hartman: "Here is the big driver core merge for 3.9-rc1 There are two major series here, both of which touch lots of drivers all over the kernel, and will cause you some merge conflicts: - add a new function called devm_ioremap_resource() to properly be able to check return values. - remove CONFIG_EXPERIMENTAL Other than those patches, there's not much here, some minor fixes and updates" Fix up trivial conflicts * tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits) base: memory: fix soft/hard_offline_page permissions drivercore: Fix ordering between deferred_probe and exiting initcalls backlight: fix class_find_device() arguments TTY: mark tty_get_device call with the proper const values driver-core: constify data for class_find_device() firmware: Ignore abort check when no user-helper is used firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER firmware: Make user-mode helper optional firmware: Refactoring for splitting user-mode helper code Driver core: treat unregistered bus_types as having no devices watchdog: Convert to devm_ioremap_resource() thermal: Convert to devm_ioremap_resource() spi: Convert to devm_ioremap_resource() power: Convert to devm_ioremap_resource() mtd: Convert to devm_ioremap_resource() mmc: Convert to devm_ioremap_resource() mfd: Convert to devm_ioremap_resource() media: Convert to devm_ioremap_resource() iommu: Convert to devm_ioremap_resource() drm: Convert to devm_ioremap_resource() ...
| * | | drivers/edac: remove depends on CONFIG_EXPERIMENTALKees Cook2013-01-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | Merge tag 'edac_3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bpLinus Torvalds2013-02-20
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull EDAC updates from Borislav Petkov: "Mostly AMD's side of EDAC. It is basically a new family enablement stuff: AMD F16h MCE decoding enablement from Jacob Shin. The rest is trivial cleanups." * tag 'edac_3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: mpc85xx_edac: Fix typo EDAC, MCE, AMD: Remove unneeded exports EDAC, MCE, AMD: Add MCE decoding support for Family 16h EDAC, MCE, AMD: Make MC2 decoding per-family amd64_edac: Remove dead code
| * | | | mpc85xx_edac: Fix typoBaruch Siach2013-02-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct typos. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Cc: Dave Jiang <djiang@mvista.com> Signed-off-by: Borislav Petkov <bp@suse.de>
| * | | | EDAC, MCE, AMD: Remove unneeded exportsBorislav Petkov2013-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initially, those strings describing different parts of an MCE message were shared with amd64_edac and were therefore exported to modules. However, all except pp_msgs are used only in one place right now so hide them and make them static. No functionality change. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | | | EDAC, MCE, AMD: Add MCE decoding support for Family 16hJacob Shin2013-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add MCE decoding logic for AMD Family 16h processors. Boris: - drop unneeded uu_msgs export - exit early in cat_mc1_mce and save us an indentation level Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | | | EDAC, MCE, AMD: Make MC2 decoding per-familyJacob Shin2013-01-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently only AMD Family 15h processors have special handling for MC2 errors. Since upcoming Family 16h will also need unique handling, let's make MC2 handling part of amd_decoder_ops. Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | | | amd64_edac: Remove dead codeBorislav Petkov2013-01-22
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | 5e2af0c09e60 ("edac: Don't initialize csrow's first_page & friends when not needed") removed useless initialization of variables but left in the functions which did that. They're unused now so drop them. Signed-off-by: Borislav Petkov <bp@alien8.de>
* | | | Merge branch 'x86-platform-for-linus' of ↵Linus Torvalds2013-02-19
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 platform changes from Ingo Molnar: - Support for the Technologic Systems TS-5500 platform, by Vivien Didelot - Improved NUMA support on AMD systems: Add support for federated systems where multiple memory controllers can exist and see each other over multiple PCI domains. This basically means that AMD node ids can be more than 8 now and the code handling this is taught to incorporate PCI domain into those IDs. - Support for the Goldfish virtual Android emulator, by Jun Nakajima, Intel, Google, et al. - Misc fixlets. * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Add TS-5500 platform support x86/srat: Simplify memory affinity init error handling x86/apb/timer: Remove unnecessary "if" goldfish: platform device for x86 amd64_edac: Fix type usage in NB IDs and memory ranges amd64_edac: Fix PCI function lookup x86, AMD, NB: Use u16 for northbridge IDs in amd_get_nb_id x86, AMD, NB: Add multi-domain support
| * | | amd64_edac: Fix type usage in NB IDs and memory rangesDaniel J Blueman2013-01-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use appropriate types for northbridge IDs and memory ranges. Mark immutable data const and keep within compilation unit on related structures. Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com> Link: http://lkml.kernel.org/r/1354265060-22956-2-git-send-email-daniel@numascale-asia.com [Boris: Drop arg change to node_to_amd_nb] Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | | amd64_edac: Fix PCI function lookupDaniel J Blueman2013-01-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix locating sibling memory controller PCI functions by using the correct PCI domain and use a northbridge descriptor only if found. We need to at least warn if it wasn't found so that it gets fixed and we don't go off with wrong results. Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com> Link: http://lkml.kernel.org/r/1354265060-22956-1-git-send-email-daniel@numascale-asia.com [Boris: remove wrong comment, sanitize code and warn if NB desc lookup fails] Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | | x86, AMD, NB: Use u16 for northbridge IDs in amd_get_nb_idDaniel J Blueman2013-01-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change amd_get_nb_id to return u16 to support >255 memory controllers, and related consistency fixes. Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com> Link: http://lkml.kernel.org/r/1353997932-8475-2-git-send-email-daniel@numascale-asia.com Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | | x86, AMD, NB: Add multi-domain supportDaniel J Blueman2013-01-10
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix get_node_id to match northbridge IDs from the array of detected ones, allowing multi-server support such as with Numascale's NumaConnect, renaming to 'amd_get_node_id' for consistency. Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com> Link: http://lkml.kernel.org/r/1353997932-8475-1-git-send-email-daniel@numascale-asia.com [Boris: shorten lines to fit 80 cols] Signed-off-by: Borislav Petkov <bp@alien8.de>
* | | EDAC: Fix kcalloc argument orderJoe Perches2013-01-30
| | | | | | | | | | | | | | | | | | | | | | | | First number, then size. Signed-off-by: Joe Perches <joe@perches.com> Cc: <stable@vger.kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de>
* | | EDAC: Test correct variable in ->store functionDan Carpenter2013-01-30
|/ / | | | | | | | | | | | | | | We're testing for ->show but calling ->store(). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable@vger.kernel.org Signed-off-by: Borislav Petkov <bp@suse.de>
* | Merge tag 'edac_fixes_for_3.8' of ↵Linus Torvalds2013-01-09
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp Pull EDAC fixes from Borislav Petkov: "Two error path fixes causing a crash and a Kconfig fix for an issue which spilled all EDAC suboptions into the 'Device Drivers' menu." * tag 'edac_fixes_for_3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: EDAC: Cleanup device deregistering path EDAC: Fix EDAC Kconfig menu EDAC: Fix kernel panic on module unloading
| * | EDAC: Cleanup device deregistering pathLans Zhang2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | Use device_unregister to replace put_device + device_del for cleanup, and fix the potential use after free. Signed-off-by: Lans Zhang <jia.zhang@windriver.com> Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | EDAC: Fix EDAC Kconfig menuBorislav Petkov2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After f65aad41772f("MIPS: Cavium: Add EDAC support."), when entering the "Device Drivers" toplevel menu in menuconfig, the suboptions behind EDAC appeared merged with the rest of the device drivers types. This was because the menuconfig option EDAC is querying an EDAC_SUPPORT Kconfig bool which was defined after the menu definition. When pushing EDAC_SUPPORT up, before the menu definition, the variable is defined earlier and the above menuconfig artifact doesn't happen. Drop a useless menuconfig comment while at it. Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | EDAC: Fix kernel panic on module unloadingKonstantin Khlebnikov2013-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes use-after-free and double-free bugs in edac_mc_sysfs_exit(). mci_pdev has single reference and put_device() calls mc_attr_release() which calls kfree(). The following device_del() works with already released memory. An another kfree() in edac_mc_sysfs_exit() releses the same memory again. Great. Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: stable@vger.kernel.org # 3.[67] Cc: Denis Kirjanov <kirjanov@gmail.com> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Link: http://lkml.kernel.org/r/20121214110310.11019.21098.stgit@zurg Signed-off-by: Borislav Petkov <bp@alien8.de>
* | | Drivers: edac: remove __dev* attributes.Greg Kroah-Hartman2013-01-03
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Doug Thompson <dougthompson@xmission.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Mark Gross <mark.gross@intel.com> Cc: Jason Uhlenkott <juhlenko@akamai.com> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Tim Small <tim@buttersideup.com> Cc: Ranganathan Desikan <ravi@jetztechnologies.com> Cc: "Arvind R." <arvino55@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Daney <david.daney@cavium.com> Cc: Egor Martovetsky <egor@pasemi.com> Cc: Olof Johansson <olof@lixom.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2012-12-14
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS updates from Ralf Baechle: "The MIPS bits for 3.8. This also includes a bunch fixes that were sitting in the linux-mips.org git tree for a long time. This pull request contains updates to several OCTEON drivers and the board support code for BCM47XX, BCM63XX, XLP, XLR, XLS, lantiq, Loongson1B, updates to the SSB bus support, MIPS kexec code and adds support for kdump. When pulling this, there are two expected merge conflicts in include/linux/bcma/bcma_driver_chipcommon.h which are trivial to resolve, just remove the conflict markers and keep both alternatives." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (90 commits) MIPS: PMC-Sierra Yosemite: Remove support. VIDEO: Newport Fix console crashes MIPS: wrppmc: Fix build of PCI code. MIPS: IP22/IP28: Fix build of EISA code. MIPS: RB532: Fix build of prom code. MIPS: PowerTV: Fix build. MIPS: IP27: Correct fucked grammar in ops-bridge.c MIPS: Highmem: Fix build error if CONFIG_DEBUG_HIGHMEM is disabled MIPS: Fix potencial corruption MIPS: Fix for warning from FPU emulation code MIPS: Handle COP3 Unusable exception as COP1X for FP emulation MIPS: Fix poweroff failure when HOTPLUG_CPU configured. MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y MIPS: Remove unused smvp.h MIPS/EDAC: Improve OCTEON EDAC support. MIPS: OCTEON: Add definitions for OCTEON memory contoller registers. MIPS: OCTEON: Add OCTEON family definitions to octeon-model.h ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian. MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree. MIPS: Remove usage of CEVT_R4K_LIB config option. ...
| * MIPS/EDAC: Improve OCTEON EDAC support.David Daney2012-12-13
| | | | | | | | | | | | | | | | | | Some initialization errors are reported with the existing OCTEON EDAC support patch. Also some parts have more than one memory controller. Fix the errors and add multiple controllers if present. Signed-off-by: David Daney <david.daney@cavium.com>
| * MIPS: Cavium: Add EDAC support.Ralf Baechle2012-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drivers for EDAC on Cavium. Supported subsystems are: o CPU primary caches. These are parity protected only, so only error reporting. o Second level cache - ECC protected, provides SECDED. o Memory: ECC / SECDEC if used with suitable DRAM modules. The driver will will only initialize if ECC is enabled on a system so is safe to run on non-ECC memory. o PCI: Parity error reporting Since it is very hard to test this sort of code the implementation is very conservative and uses polling where possible for now. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Reviewed-by: Borislav Petkov <borislav.petkov@amd.com>
* | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bpLinus Torvalds2012-12-11
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull EDAC fixes from Borislav Petkov: - EDAC core error path fix, from Denis Kirjanov. - Generalization of AMD MCE bank names and some minor error reporting improvements. - EDAC core cleanups and simplifications, from Wei Yongjun. - amd64_edac fixes for sysfs-reported values, from Josh Hunt. - some heavy amd64_edac error reporting path shaving, leading to removing a bunch of code. - amd64_edac error injection method improvements. - EDAC core cleanups and fixes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (24 commits) EDAC, pci_sysfs: Use for_each_pci_dev to simplify the code EDAC: Handle error path in edac_mc_sysfs_init() properly MCE, AMD: Dump error status MCE, AMD: Report decoded error type first MCE, AMD: Dump CPU f/m/s triple with the error MCE, AMD: Remove functional unit references EDAC: Convert to use simple_open() EDAC, Calxeda highbank: Convert to use simple_open() EDAC: Fix mc size reported in sysfs EDAC: Fix csrow size reported in sysfs EDAC: Pass mci parent EDAC: Add memory controller flags amd64_edac: Fix csrows size and pages computation amd64_edac: Use DBAM_DIMM macro amd64_edac: Fix K8 chip select reporting amd64_edac: Reorganize error reporting path amd64_edac: Do not check whether error address is valid amd64_edac: Improve error injection amd64_edac: Cleanup error injection code amd64_edac: Small fixlets and cleanups ...
| * | EDAC, pci_sysfs: Use for_each_pci_dev to simplify the codeWei Yongjun2012-12-04
| | | | | | | | | | | | | | | | | | | | | | | | Use for_each_pci_dev to simplify the code. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> [Boris: cleanup comments and drop loop brackets] Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | EDAC: Handle error path in edac_mc_sysfs_init() properlyDenis Kirjanov2012-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure proper deregistration happens on all error paths in edac_mc_sysfs_init. Signed-off-by: Denis Kirjanov <kirjanov@gmail.com> [ Boris: cleanup and concretize commit message ] Signed-off-by: Borislav Petkov <bp@alien8.de>
| * | MCE, AMD: Dump error statusBorislav Petkov2012-11-28
| | | | | | | | | | | | | | | | | | | | | Dump error status after decoding the error which describes the error disposition. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
| * | MCE, AMD: Report decoded error type firstBorislav Petkov2012-11-28
| | | | | | | | | | | | | | | | | | | | | Instead of starting with the error details, report the decoded, readable error type first. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
| * | MCE, AMD: Dump CPU f/m/s triple with the errorBorislav Petkov2012-11-28
| | | | | | | | | | | | | | | | | | | | | It is very useful to have the family/model/stepping with the reported error so dump it. This saves us asking the bug reporter about it. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
| * | MCE, AMD: Remove functional unit referencesBorislav Petkov2012-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Having the functional unit names in each bank decode is only misleading as this code supports multiple families and there's no guarantee the mapping between FUs and MCE banks will stay the same. And also, knowing the functional unit name doesn't help much since you end up looking at the respective BKDG anyway. So drop all FU references and use the MC bank numbers instead. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
| * | EDAC: Convert to use simple_open()Wei Yongjun2012-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes an open coded simple_open() function and replaces file operations references to the function with simple_open() instead. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
| * | EDAC, Calxeda highbank: Convert to use simple_open()Wei Yongjun2012-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes an open coded simple_open() function and replaces file operations references to the function with simple_open() instead. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Cc: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
| * | EDAC: Fix mc size reported in sysfsJosh Hunt2012-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the complement to previous commit "EDAC: Fix csrow size reported in sysfs". This fixes the memory controller size reporting on csrow-based memory controllers. The csrow size is already combined for both channels. Without this patch memory size is reported doubled. Signed-off-by: Josh Hunt <johunt@akamai.com> Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
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