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Date: Thu, 2 Apr 2009 14:07:15 +0800 From: Harry Ciao <qingtao.cao@...driver.com> To: norsk5@...oo.com Cc: linux-kernel@...r.kernel.org, bluesmoke-devel@...ts.sourceforge.net Subject: [v0 PATCH 0/5] Add CPC925 Memory Controller EDAC drivers Comments: --------- Introduce CPC925 Memory Controller EDAC driver, which makes use of error detections about CPU, ECC and HyperTransport Link on the IBM CPC925 Bridge and Memory Controller. Since both CPC925 and AMD8131 EDAC drivers would use edac_device_ctl_info structures, EDAC core has to take the responsibility to allocate a unique "edac_dev_idx" for each of them, by newly added edac_device_alloc_index(). Note, by far only POLL mode is supported, and they have been tested on MAPLE platform, from below test logs we can tell that they could be correctly installed and removed, and export proper sysfs interfaces. Test steps: ----------- CONFIG_EDAC=y CONFIG_EDAC_DEBUG=y CONFIG_EDAC_MM_EDAC=m CONFIG_EDAC_AMD8111=m CONFIG_EDAC_AMD8131=m CONFIG_EDAC_CPC925=m insmod edac_core.ko dmesg -n 8 insmod cpc925_edac.ko cd /sys/devices/system/edac/mc/mc0 ls -lt ls -lt csrow0/ ,etc ls -lt csrow4/ ,etc cd /sys/devices/system/edac/ ls -lt cpu/, etc ls -lt htlink/, etc rmmod cpc925_edac insmod cpc925_edac.ko insmod amd8131_edac.ko insmod amd8111_edac.ko ls -lt Test results: ------------- root@...alhost:/> insmod edac_core.ko root@...alhost:/> dmesg -n 8 root@...alhost:/> insmod cpc925_edac.ko IBM CPC925 EDAC driver Ver: 1.0.0 Mar 30 2009 (C) 2008 Wind River Systems, Inc EDAC DEBUG: cpc925_probe: cpc925_edac platform device found! EDAC DEBUG: cpc925_mc_get_channels: Dual channel EDAC DEBUG: edac_mc_register_sysfs_main_kobj() EDAC DEBUG: edac_mc_register_sysfs_main_kobj() Registered '.../edac/mc0' kobject EDAC DEBUG: get_total_mem: start 0x0, size 0x80000000 EDAC DEBUG: get_total_mem: start 0x100000000, size 0x80000000 EDAC DEBUG: get_total_mem: total_mem 0x100000000 EDAC DEBUG: edac_mc_add_mc() EDAC DEBUG: edac_create_sysfs_mci_device() idx=0 EDAC DEBUG: edac_mc_workq_setup() EDAC MC0: Giving out device to 'cpc925_edac' 'cpc925_edac': DEV cpc925_edac.0 EDAC DEBUG: edac_device_register_sysfs_main_kobj() EDAC DEBUG: edac_device_add_device() EDAC DEBUG: find_edac_device_by_dev() EDAC DEBUG: edac_device_create_sysfs() idx=0 EDAC DEBUG: edac_device_create_instances() EDAC DEBUG: edac_device_workq_setup() EDAC DEVICE0: Giving out device to module 'cpc925_edac' controller 'cpu': DEV 'cpu.0' (POLLED) EDAC DEBUG: cpc925_add_edac_devices: Successfully added edac device for cpu EDAC DEBUG: edac_device_register_sysfs_main_kobj() EDAC DEBUG: edac_device_add_device() EDAC DEBUG: find_edac_device_by_dev() EDAC DEBUG: edac_device_create_sysfs() idx=1 EDAC DEBUG: edac_device_create_instances() EDAC DEBUG: edac_device_workq_setup() EDAC DEVICE1: Giving out device to module 'cpc925_edac' controller 'htlink': DEV 'htlink.0' (POLLED) EDAC DEBUG: cpc925_add_edac_devices: Successfully added edac device for htlink EDAC DEBUG: cpc925_probe: success root@...alhost:/> cd /sys/devices/system/edac/ root@...alhost:/sys/devices/system/edac> ls -lt total 0 drwxr-xr-x 3 root root 0 Nov 19 06:27 cpu drwxr-xr-x 3 root root 0 Nov 19 06:27 htlink drwxr-xr-x 3 root root 0 Nov 19 06:27 mc root@...alhost:/sys/devices/system/edac> cd mc/mc0 root@...alhost:/sys/devices/system/edac/mc/mc0> ls -lt total 0 -r--r--r-- 1 root root 4096 Nov 19 06:28 ce_count -r--r--r-- 1 root root 4096 Nov 19 06:28 ce_noinfo_count drwxr-xr-x 2 root root 0 Nov 19 06:28 csrow0 drwxr-xr-x 2 root root 0 Nov 19 06:28 csrow4 lrwxrwxrwx 1 root root 0 Nov 19 06:28 device -> ../../../../platform/cpc925_edac.0 -r--r--r-- 1 root root 4096 Nov 19 06:28 mc_name --w------- 1 root root 4096 Nov 19 06:28 reset_counters -rw-r--r-- 1 root root 4096 Nov 19 06:28 sdram_scrub_rate -r--r--r-- 1 root root 4096 Nov 19 06:28 seconds_since_reset -r--r--r-- 1 root root 4096 Nov 19 06:28 size_mb -r--r--r-- 1 root root 4096 Nov 19 06:28 ue_count -r--r--r-- 1 root root 4096 Nov 19 06:28 ue_noinfo_count root@...alhost:/sys/devices/system/edac/mc/mc0> cat size_mb 4096 root@...alhost:/sys/devices/system/edac/mc/mc0> cat seconds_since_reset 35 root@...alhost:/sys/devices/system/edac/mc/mc0> cat sdram_scrub_rate EDAC DEBUG: cpc925_get_sdram_scrub_rate, Mem Scrub Ctrl Register 0x0 EDAC CPC925 MC0: Scrub mode not enabled EDAC MC: Scrub rate successfully, fetched: 0 0 root@...alhost:/sys/devices/system/edac/mc/mc0> cat ce_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0> cat ce_noinfo_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0> cat ue_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0> cat ue_noinfo_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0> cd csrow0 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> ls -lt total 0 -r--r--r-- 1 root root 4096 Nov 19 06:28 ce_count -rw-r--r-- 1 root root 4096 Nov 19 06:28 ch0_ce_count -rw-r--r-- 1 root root 4096 Nov 19 06:28 ch0_dimm_label -rw-r--r-- 1 root root 4096 Nov 19 06:28 ch1_ce_count -rw-r--r-- 1 root root 4096 Nov 19 06:28 ch1_dimm_label -r--r--r-- 1 root root 4096 Nov 19 06:28 dev_type -r--r--r-- 1 root root 4096 Nov 19 06:28 edac_mode -r--r--r-- 1 root root 4096 Nov 19 06:28 mem_type -r--r--r-- 1 root root 4096 Nov 19 06:28 size_mb -r--r--r-- 1 root root 4096 Nov 19 06:28 ue_count root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat dev_type x8 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat edac_mode SECDED root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat mem_type Registered-DDR root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat size_mb 2048 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat ce_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat ue_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat ch0_ce_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat ch1_ce_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat ch0_dimm_label root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cat ch1_dimm_label root@...alhost:/sys/devices/system/edac/mc/mc0/csrow0> cd ../csrow4 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> ls -lt total 0 -r--r--r-- 1 root root 4096 Nov 19 06:29 ce_count -rw-r--r-- 1 root root 4096 Nov 19 06:29 ch0_ce_count -rw-r--r-- 1 root root 4096 Nov 19 06:29 ch0_dimm_label -rw-r--r-- 1 root root 4096 Nov 19 06:29 ch1_ce_count -rw-r--r-- 1 root root 4096 Nov 19 06:29 ch1_dimm_label -r--r--r-- 1 root root 4096 Nov 19 06:29 dev_type -r--r--r-- 1 root root 4096 Nov 19 06:29 edac_mode -r--r--r-- 1 root root 4096 Nov 19 06:29 mem_type -r--r--r-- 1 root root 4096 Nov 19 06:29 size_mb -r--r--r-- 1 root root 4096 Nov 19 06:29 ue_count root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat dev_type Unknown root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat edac_mode SECDED root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat mem_type Registered-DDR root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat size_mb 2048 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat ce_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat ue_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat ch0_ce_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat ch1_ce_count 0 root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat ch0_dimm_label root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cat ch1_dimm_label root@...alhost:/sys/devices/system/edac/mc/mc0/csrow4> cd ../../.. root@...alhost:/sys/devices/system/edac> ls -lt total 0 drwxr-xr-x 3 root root 0 Nov 19 06:27 cpu drwxr-xr-x 3 root root 0 Nov 19 06:27 htlink drwxr-xr-x 3 root root 0 Nov 19 06:27 mc root@...alhost:/sys/devices/system/edac> cd cpu root@...alhost:/sys/devices/system/edac/cpu> ls -lt total 0 drwxr-xr-x 2 root root 0 Nov 19 06:30 cpu0 lrwxrwxrwx 1 root root 0 Nov 19 06:30 device -> ../../../platform/cpu.0 -rw-r--r-- 1 root root 4096 Nov 19 06:30 log_ce -rw-r--r-- 1 root root 4096 Nov 19 06:30 log_ue -rw-r--r-- 1 root root 4096 Nov 19 06:30 panic_on_ue -rw-r--r-- 1 root root 4096 Nov 19 06:30 poll_msec root@...alhost:/sys/devices/system/edac/cpu> cat log_ce 1 root@...alhost:/sys/devices/system/edac/cpu> cat log_ue 1 root@...alhost:/sys/devices/system/edac/cpu> cat panic_on_ue 0 root@...alhost:/sys/devices/system/edac/cpu> echo 1 > panic_on_ue root@...alhost:/sys/devices/system/edac/cpu> cat panic_on_ue 1 root@...alhost:/sys/devices/system/edac/cpu> cat poll_msec 1000 root@...alhost:/sys/devices/system/edac/cpu> ls -lt cpu0 total 0 -r--r--r-- 1 root root 4096 Nov 19 06:30 ce_count -r--r--r-- 1 root root 4096 Nov 19 06:30 ue_count root@...alhost:/sys/devices/system/edac/cpu> cat cpu0/ce_count 0 root@...alhost:/sys/devices/system/edac/cpu> cat cpu0/ue_count 0 root@...alhost:/sys/devices/system/edac/cpu> cd ../htlink/ root@...alhost:/sys/devices/system/edac/htlink> ls -lt total 0 lrwxrwxrwx 1 root root 0 Nov 19 06:30 device -> ../../../platform/htlink.0 drwxr-xr-x 2 root root 0 Nov 19 06:30 htlink0 -rw-r--r-- 1 root root 4096 Nov 19 06:30 log_ce -rw-r--r-- 1 root root 4096 Nov 19 06:30 log_ue -rw-r--r-- 1 root root 4096 Nov 19 06:30 panic_on_ue -rw-r--r-- 1 root root 4096 Nov 19 06:30 poll_msec root@...alhost:/sys/devices/system/edac/htlink> cd .. root@...alhost:/sys/devices/system/edac> dmesg -n 4 root@...alhost:/sys/devices/system/edac> insmod /amd8111_edac.ko root@...alhost:/sys/devices/system/edac> insmod /amd8131_edac.ko root@...alhost:/sys/devices/system/edac> dmesg -n 8 root@...alhost:/sys/devices/system/edac> ls -lt total 0 drwxr-xr-x 3 root root 0 Nov 19 06:31 lpc drwxr-xr-x 7 root root 0 Nov 19 06:31 pci drwxr-xr-x 3 root root 0 Nov 19 06:27 cpu drwxr-xr-x 3 root root 0 Nov 19 06:27 htlink drwxr-xr-x 3 root root 0 Nov 19 06:27 mc root@...alhost:/sys/devices/system/edac> ls -lt pci total 0 -rw-r--r-- 1 root root 4096 Nov 19 06:31 check_pci_errors -rw-r--r-- 1 root root 4096 Nov 19 06:31 edac_pci_log_npe -rw-r--r-- 1 root root 4096 Nov 19 06:31 edac_pci_log_pe -rw-r--r-- 1 root root 4096 Nov 19 06:31 edac_pci_panic_on_pe drwxr-xr-x 2 root root 0 Nov 19 06:31 pci0 drwxr-xr-x 2 root root 0 Nov 19 06:31 pci1 drwxr-xr-x 2 root root 0 Nov 19 06:31 pci2 drwxr-xr-x 2 root root 0 Nov 19 06:31 pci3 drwxr-xr-x 2 root root 0 Nov 19 06:31 pci4 -r--r--r-- 1 root root 4096 Nov 19 06:31 pci_nonparity_count -r--r--r-- 1 root root 4096 Nov 19 06:31 pci_parity_count root@...alhost:/sys/devices/system/edac> ls -lt lpc/ total 0 lrwxrwxrwx 1 root root 0 Nov 19 06:31 device -> ../../../pci0000:00/0000:00:06.0 -rw-r--r-- 1 root root 4096 Nov 19 06:31 log_ce -rw-r--r-- 1 root root 4096 Nov 19 06:31 log_ue drwxr-xr-x 2 root root 0 Nov 19 06:31 lpc0 -rw-r--r-- 1 root root 4096 Nov 19 06:31 panic_on_ue -rw-r--r-- 1 root root 4096 Nov 19 06:31 poll_msec root@...alhost:/sys/devices/system/edac> lsmod Module Size Used by amd8131_edac 7632 0 amd8111_edac 12528 0 cpc925_edac 12948 0 edac_core 83112 8 amd8131_edac,amd8111_edac,cpc925_edac root@...alhost:/sys/devices/system/edac> rmmod cpc925_edac EDAC DEBUG: edac_device_del_device() EDAC DEBUG: find_edac_device_by_dev() EDAC DEBUG: edac_device_remove_sysfs() EDAC DEBUG: edac_device_ctrl_instance_release() EDAC MC: Removed device 0 for cpc925_edac cpu: DEV cpu.0 EDAC DEBUG: edac_device_unregister_sysfs_main_kobj() EDAC DEBUG: cpc925_del_edac_devices: Successfully deleted edac device for cpu EDAC DEBUG: edac_device_del_device() EDAC DEBUG: find_edac_device_by_dev() EDAC DEBUG: edac_device_remove_sysfs() EDAC DEBUG: edac_device_ctrl_instance_release() EDAC MC: Removed device 1 for cpc925_edac htlink: DEV htlink.0 EDAC DEBUG: edac_device_unregister_sysfs_main_kobj() EDAC DEBUG: cpc925_del_edac_devices: Successfully deleted edac device for htlink EDAC DEBUG: edac_mc_del_mc() EDAC DEBUG: edac_remove_sysfs_mci_device() EDAC DEBUG: edac_remove_sysfs_mci_device() unreg csrow-0 EDAC DEBUG: edac_csrow_instance_release() EDAC DEBUG: edac_remove_sysfs_mci_device() unreg csrow-4 EDAC DEBUG: edac_csrow_instance_release() EDAC DEBUG: edac_remove_sysfs_mci_device() remove_link EDAC DEBUG: edac_remove_sysfs_mci_device() remove_mci_instance EDAC DEBUG: edac_remove_sysfs_mci_device() unregister this mci kobj EDAC DEBUG: edac_mci_control_release() mci instance idx=0 releasing EDAC MC: Removed device 0 for cpc925_edac cpc925_edac: DEV cpc925_edac.0 root@...alhost:/sys/devices/system/edac> ls -lt total 0 drwxr-xr-x 2 root root 0 Nov 19 06:32 mc drwxr-xr-x 3 root root 0 Nov 19 06:31 lpc drwxr-xr-x 7 root root 0 Nov 19 06:31 pci root@...alhost:/sys/devices/system/edac> dmesg -n 4 root@...alhost:/sys/devices/system/edac> insmod /cpc925_edac.ko root@...alhost:/sys/devices/system/edac> ls -lt total 0 drwxr-xr-x 3 root root 0 Nov 19 06:32 cpu drwxr-xr-x 3 root root 0 Nov 19 06:32 htlink drwxr-xr-x 3 root root 0 Nov 19 06:32 mc drwxr-xr-x 3 root root 0 Nov 19 06:31 lpc drwxr-xr-x 7 root root 0 Nov 19 06:31 pci root@...alhost:/sys/devices/system/edac> diffstat: --------- 0001-EDAC-Add-CPC925-driver-header-file.patch cpc925_edac.h | 283 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 283 insertions(+) 0002-EDAC-Add-CPC925-driver-source-file.patch cpc925_edac.c | 757 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 757 insertions(+) 0003-EDAC-Add-CPC925-driver-Kconfig-Makefile.patch Kconfig | 9 +++++++++ Makefile | 1 + 2 files changed, 10 insertions(+) 0004-EDAC-Add-edac_device_alloc_index.patch amd8111_edac.c | 3 +-- edac_core.h | 1 + edac_device.c | 13 +++++++++++++ 3 files changed, 15 insertions(+), 2 deletions(-) 0005-EDAC-CPC925-MC-platform-device-setup.patch setup.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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