1e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 2e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 3e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device.c 4e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * (C) 2007 www.douglaskthompson.com 5e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 6e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * This file may be distributed under the terms of the 7e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * GNU General Public License. 8e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 9e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Written by Doug Thompson <norsk5@xmission.com> 10e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 11e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device API implementation 12e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 19 Jan 2007 13e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 14e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 15e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/module.h> 16e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/types.h> 17e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/smp.h> 18e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/init.h> 19e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/sysctl.h> 20e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/highmem.h> 21e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/timer.h> 22e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/slab.h> 2352490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson#include <linux/jiffies.h> 24e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/spinlock.h> 25e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/list.h> 26e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/ctype.h> 27e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/workqueue.h> 28e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <asm/uaccess.h> 29e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <asm/page.h> 30e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 31e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include "edac_core.h" 32e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include "edac_module.h" 33e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 34bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson/* lock for the list: 'edac_device_list', manipulation of this list 35bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * is protected by the 'device_ctls_mutex' lock 36bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson */ 370ca84761faeb9d49301d45b39859411c7a124690Doug Thompsonstatic DEFINE_MUTEX(device_ctls_mutex); 38ff6ac2a616c85d1215899ffda815e29b699cbd3aRobert P. J. Daystatic LIST_HEAD(edac_device_list); 39e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 40e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#ifdef CONFIG_EDAC_DEBUG 41e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic void edac_device_dump_device(struct edac_device_ctl_info *edac_dev) 42e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 43079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompson debugf3("\tedac_dev = %p dev_idx=%d \n", edac_dev, edac_dev->dev_idx); 44e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf4("\tedac_dev->edac_check = %p\n", edac_dev->edac_check); 45e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf3("\tdev = %p\n", edac_dev->dev); 46e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf3("\tmod_name:ctl_name = %s:%s\n", 47e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->mod_name, edac_dev->ctl_name); 48e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf3("\tpvt_info = %p\n\n", edac_dev->pvt_info); 49e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 50079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompson#endif /* CONFIG_EDAC_DEBUG */ 51e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 521c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson 53e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 5452490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * edac_device_alloc_ctl_info() 5552490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * Allocate a new edac device control info structure 5652490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * 5752490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * The control structure is allocated in complete chunk 5852490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * from the OS. It is in turn sub allocated to the 5952490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * various objects that compose the struture 6052490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * 6152490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * The structure has a 'nr_instance' array within itself. 6252490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * Each instance represents a major component 6352490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * Example: L1 cache and L2 cache are 2 instance components 6452490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * 6552490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * Within each instance is an array of 'nr_blocks' blockoffsets 66e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 67e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstruct edac_device_ctl_info *edac_device_alloc_ctl_info( 68e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned sz_private, 6952490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson char *edac_device_name, unsigned nr_instances, 7052490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson char *edac_block_name, unsigned nr_blocks, 7152490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson unsigned offset_value, /* zero, 1, or other based offset */ 72d45e7823baf655ced91c7987fb4ba9aae990ad6dDoug Thompson struct edac_dev_sysfs_block_attribute *attrib_spec, unsigned nr_attrib, 73d45e7823baf655ced91c7987fb4ba9aae990ad6dDoug Thompson int device_index) 74e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 75e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *dev_ctl; 76e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_instance *dev_inst, *inst; 77e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_block *dev_blk, *blk_p, *blk; 78fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson struct edac_dev_sysfs_block_attribute *dev_attrib, *attrib_p, *attrib; 79e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned total_size; 80e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned count; 81e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned instance, block, attr; 82e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson void *pvt; 831c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson int err; 84e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 85b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson debugf4("%s() instances=%d blocks=%d\n", 86079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompson __func__, nr_instances, nr_blocks); 87e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 88fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* Calculate the size of memory we need to allocate AND 89fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * determine the offsets of the various item arrays 90fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * (instance,block,attrib) from the start of an allocated structure. 91fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * We want the alignment of each item (instance,block,attrib) 92e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * to be at least as stringent as what the compiler would 93e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * provide if we could simply hardcode everything into a single struct. 94e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 9552490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson dev_ctl = (struct edac_device_ctl_info *)NULL; 96e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 97fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* Calc the 'end' offset past end of ONE ctl_info structure 98fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * which will become the start of the 'instance' array 99fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson */ 1007391c6dcab3094610cb99bbd559beaa282582eacDouglas Thompson dev_inst = edac_align_ptr(&dev_ctl[1], sizeof(*dev_inst)); 101e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 102fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* Calc the 'end' offset past the instance array within the ctl_info 103fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * which will become the start of the block array 104fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson */ 1057391c6dcab3094610cb99bbd559beaa282582eacDouglas Thompson dev_blk = edac_align_ptr(&dev_inst[nr_instances], sizeof(*dev_blk)); 106e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 107fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* Calc the 'end' offset past the dev_blk array 108fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * which will become the start of the attrib array, if any. 109fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson */ 110e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson count = nr_instances * nr_blocks; 1117391c6dcab3094610cb99bbd559beaa282582eacDouglas Thompson dev_attrib = edac_align_ptr(&dev_blk[count], sizeof(*dev_attrib)); 112e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 113fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* Check for case of when an attribute array is specified */ 114fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson if (nr_attrib > 0) { 115fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* calc how many nr_attrib we need */ 116fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson count *= nr_attrib; 117e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 118fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* Calc the 'end' offset past the attributes array */ 119fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson pvt = edac_align_ptr(&dev_attrib[count], sz_private); 120fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson } else { 121fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* no attribute array specificed */ 122fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson pvt = edac_align_ptr(dev_attrib, sz_private); 123fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson } 124fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson 125fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* 'pvt' now points to where the private data area is. 126fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * At this point 'pvt' (like dev_inst,dev_blk and dev_attrib) 127fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * is baselined at ZERO 128fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson */ 129079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompson total_size = ((unsigned long)pvt) + sz_private; 130e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 131e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Allocate the amount of memory for the set of control structures */ 13252490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson dev_ctl = kzalloc(total_size, GFP_KERNEL); 13352490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson if (dev_ctl == NULL) 134e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return NULL; 135e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 136fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* Adjust pointers so they point within the actual memory we 137fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * just allocated rather than an imaginary chunk of memory 138fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * located at address 0. 139fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * 'dev_ctl' points to REAL memory, while the others are 140fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * ZERO based and thus need to be adjusted to point within 141fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * the allocated memory. 142e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 143e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_inst = (struct edac_device_instance *) 144052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson (((char *)dev_ctl) + ((unsigned long)dev_inst)); 145e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_blk = (struct edac_device_block *) 146052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson (((char *)dev_ctl) + ((unsigned long)dev_blk)); 147fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson dev_attrib = (struct edac_dev_sysfs_block_attribute *) 148052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson (((char *)dev_ctl) + ((unsigned long)dev_attrib)); 149079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompson pvt = sz_private ? (((char *)dev_ctl) + ((unsigned long)pvt)) : NULL; 150e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 151fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* Begin storing the information into the control info structure */ 152d45e7823baf655ced91c7987fb4ba9aae990ad6dDoug Thompson dev_ctl->dev_idx = device_index; 153e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl->nr_instances = nr_instances; 154e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl->instances = dev_inst; 155e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl->pvt_info = pvt; 156e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 15756e61a9c5fe7b799504b125c278b56cc2c42670fDoug Thompson /* Default logging of CEs and UEs */ 15856e61a9c5fe7b799504b125c278b56cc2c42670fDoug Thompson dev_ctl->log_ce = 1; 15956e61a9c5fe7b799504b125c278b56cc2c42670fDoug Thompson dev_ctl->log_ue = 1; 16056e61a9c5fe7b799504b125c278b56cc2c42670fDoug Thompson 16152490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson /* Name of this edac device */ 16252490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson snprintf(dev_ctl->name,sizeof(dev_ctl->name),"%s",edac_device_name); 163e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 164b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson debugf4("%s() edac_dev=%p next after end=%p\n", 165b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson __func__, dev_ctl, pvt + sz_private ); 166b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson 167e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Initialize every Instance */ 168e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson for (instance = 0; instance < nr_instances; instance++) { 169e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson inst = &dev_inst[instance]; 170e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson inst->ctl = dev_ctl; 171e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson inst->nr_blocks = nr_blocks; 172e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson blk_p = &dev_blk[instance * nr_blocks]; 173e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson inst->blocks = blk_p; 174e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 175e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* name of this instance */ 176e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson snprintf(inst->name, sizeof(inst->name), 177079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompson "%s%u", edac_device_name, instance); 178e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 179e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Initialize every block in each instance */ 180079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompson for (block = 0; block < nr_blocks; block++) { 181e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson blk = &blk_p[block]; 182e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson blk->instance = inst; 183e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson snprintf(blk->name, sizeof(blk->name), 184d391a7b8147d12b0e5141fb65829856fb0c289dcDouglas Thompson "%s%d", edac_block_name, block+offset_value); 185e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 186b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson debugf4("%s() instance=%d inst_p=%p block=#%d " 187b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson "block_p=%p name='%s'\n", 188b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson __func__, instance, inst, block, 189b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson blk, blk->name); 190e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 191fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* if there are NO attributes OR no attribute pointer 192fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * then continue on to next block iteration 193fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson */ 194fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson if ((nr_attrib == 0) || (attrib_spec == NULL)) 195fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson continue; 196fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson 197fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* setup the attribute array for this block */ 198fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson blk->nr_attribs = nr_attrib; 199fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson attrib_p = &dev_attrib[block*nr_instances*nr_attrib]; 200fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson blk->block_attributes = attrib_p; 201fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson 202b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson debugf4("%s() THIS BLOCK_ATTRIB=%p\n", 203b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson __func__, blk->block_attributes); 204b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson 205fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson /* Initialize every user specified attribute in this 206fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson * block with the data the caller passed in 207b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson * Each block gets its own copy of pointers, 208b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson * and its unique 'value' 209fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson */ 210fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson for (attr = 0; attr < nr_attrib; attr++) { 211fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson attrib = &attrib_p[attr]; 212fd309a9d8e63e9176759d00630b65d772ae06e0cDouglas Thompson 213b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson /* populate the unique per attrib 214b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson * with the code pointers and info 215b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson */ 216b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson attrib->attr = attrib_spec[attr].attr; 217b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson attrib->show = attrib_spec[attr].show; 218b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson attrib->store = attrib_spec[attr].store; 219b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson 220b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson attrib->block = blk; /* up link */ 221b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson 222b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson debugf4("%s() alloc-attrib=%p attrib_name='%s' " 223b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson "attrib-spec=%p spec-name=%s\n", 224b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson __func__, attrib, attrib->attr.name, 225b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson &attrib_spec[attr], 226b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson attrib_spec[attr].attr.name 227b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson ); 228e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 229e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 230e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 231e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 232e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Mark this instance as merely ALLOCATED */ 233e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl->op_state = OP_ALLOC; 234e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 2351c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson /* 2361c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson * Initialize the 'root' kobj for the edac_device controller 2371c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson */ 2381c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson err = edac_device_register_sysfs_main_kobj(dev_ctl); 2391c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson if (err) { 2401c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson kfree(dev_ctl); 2411c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson return NULL; 2421c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson } 2431c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson 2441c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson /* at this point, the root kobj is valid, and in order to 2451c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson * 'free' the object, then the function: 2461c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson * edac_device_unregister_sysfs_main_kobj() must be called 2471c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson * which will perform kobj unregistration and the actual free 2481c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson * will occur during the kobject callback operation 2491c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson */ 2501c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson 251e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return dev_ctl; 252e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 253e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_alloc_ctl_info); 254e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 255e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 256e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_free_ctl_info() 257e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * frees the memory allocated by the edac_device_alloc_ctl_info() 258e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * function 259e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 260079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompsonvoid edac_device_free_ctl_info(struct edac_device_ctl_info *ctl_info) 261079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompson{ 2621c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson edac_device_unregister_sysfs_main_kobj(ctl_info); 263e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 264079708b9173595bf74b31b14c36e946359ae6c7eDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_free_ctl_info); 265e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 266e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 267e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * find_edac_device_by_dev 268e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * scans the edac_device list for a specific 'struct device *' 26952490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * 27052490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * lock to be held prior to call: device_ctls_mutex 27152490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * 27252490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * Return: 27352490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * pointer to control structure managing 'dev' 27452490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * NULL if not found on list 275e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 276079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompsonstatic struct edac_device_ctl_info *find_edac_device_by_dev(struct device *dev) 277e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 278e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev; 279e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct list_head *item; 280e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 281b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson debugf0("%s()\n", __func__); 282e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 283e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson list_for_each(item, &edac_device_list) { 284e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev = list_entry(item, struct edac_device_ctl_info, link); 285e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 286e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_dev->dev == dev) 287e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev; 288e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 289e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 290e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return NULL; 291e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 292e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 293e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 294e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * add_edac_dev_to_global_list 295e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Before calling this function, caller must 296e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * assign a unique value to edac_dev->dev_idx. 29752490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * 29852490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * lock to be held prior to call: device_ctls_mutex 29952490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson * 300e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Return: 301e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 0 on success 302e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 1 on failure. 303e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 304079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompsonstatic int add_edac_dev_to_global_list(struct edac_device_ctl_info *edac_dev) 305e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 306e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct list_head *item, *insert_before; 307e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *rover; 308e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 309e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson insert_before = &edac_device_list; 310e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 311e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Determine if already on the list */ 31252490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson rover = find_edac_device_by_dev(edac_dev->dev); 31352490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson if (unlikely(rover != NULL)) 314e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson goto fail0; 315e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 316e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Insert in ascending order by 'dev_idx', so find position */ 317e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson list_for_each(item, &edac_device_list) { 318e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson rover = list_entry(item, struct edac_device_ctl_info, link); 319e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 320e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (rover->dev_idx >= edac_dev->dev_idx) { 321e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (unlikely(rover->dev_idx == edac_dev->dev_idx)) 322e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson goto fail1; 323e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 324e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson insert_before = item; 325e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson break; 326e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 327e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 328e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 329e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson list_add_tail_rcu(&edac_dev->link, insert_before); 330e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 0; 331e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 332052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompsonfail0: 333e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_printk(KERN_WARNING, EDAC_MC, 334052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "%s (%s) %s %s already assigned %d\n", 335281efb17d88a91dc3b879bb1d49e3a66daf48797Kay Sievers dev_name(rover->dev), edac_dev_name(rover), 336052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson rover->mod_name, rover->ctl_name, rover->dev_idx); 337e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 1; 338e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 339052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompsonfail1: 340e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_printk(KERN_WARNING, EDAC_MC, 341052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "bug in low-level driver: attempt to assign\n" 342052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson " duplicate dev_idx %d in %s()\n", rover->dev_idx, 343052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson __func__); 344e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 1; 345e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 346e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 347e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 348e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * del_edac_device_from_global_list 349e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 350079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompsonstatic void del_edac_device_from_global_list(struct edac_device_ctl_info 351052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson *edac_device) 352e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 353e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson list_del_rcu(&edac_device->link); 354e2e77098764636456ba7092a8b3b3b34b2a8e8d8Lai Jiangshan 355e2e77098764636456ba7092a8b3b3b34b2a8e8d8Lai Jiangshan /* these are for safe removal of devices from global list while 356e2e77098764636456ba7092a8b3b3b34b2a8e8d8Lai Jiangshan * NMI handlers may be traversing list 357e2e77098764636456ba7092a8b3b3b34b2a8e8d8Lai Jiangshan */ 358e2e77098764636456ba7092a8b3b3b34b2a8e8d8Lai Jiangshan synchronize_rcu(); 359e2e77098764636456ba7092a8b3b3b34b2a8e8d8Lai Jiangshan INIT_LIST_HEAD(&edac_device->link); 360e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 361e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 362e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 36381d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * edac_device_workq_function 364e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * performs the operation scheduled by a workq request 365bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * 366bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * this workq is embedded within an edac_device_ctl_info 367bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * structure, that needs to be polled for possible error events. 368bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * 369bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * This operation is to acquire the list mutex lock 370bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * (thus preventing insertation or deletion) 371bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * and then call the device's poll function IFF this device is 372bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * running polled and there is a poll function defined. 373e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 37481d87cb13e367bb804bf44889ae0de7369705d6cDave Jiangstatic void edac_device_workq_function(struct work_struct *work_req) 375e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 376fbeb4384748abb78531bbe1e80d627412a0abcfaJean Delvare struct delayed_work *d_work = to_delayed_work(work_req); 377079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompson struct edac_device_ctl_info *edac_dev = to_edac_device_ctl_work(d_work); 378e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 3790ca84761faeb9d49301d45b39859411c7a124690Doug Thompson mutex_lock(&device_ctls_mutex); 380e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 381d519c8d9ccb7956e61a55ce3a0fd6a25f42cbb33Harry Ciao /* If we are being removed, bail out immediately */ 382d519c8d9ccb7956e61a55ce3a0fd6a25f42cbb33Harry Ciao if (edac_dev->op_state == OP_OFFLINE) { 383d519c8d9ccb7956e61a55ce3a0fd6a25f42cbb33Harry Ciao mutex_unlock(&device_ctls_mutex); 384d519c8d9ccb7956e61a55ce3a0fd6a25f42cbb33Harry Ciao return; 385d519c8d9ccb7956e61a55ce3a0fd6a25f42cbb33Harry Ciao } 386d519c8d9ccb7956e61a55ce3a0fd6a25f42cbb33Harry Ciao 387e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Only poll controllers that are running polled and have a check */ 388e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((edac_dev->op_state == OP_RUNNING_POLL) && 389052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson (edac_dev->edac_check != NULL)) { 390052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson edac_dev->edac_check(edac_dev); 391e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 392e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 3930ca84761faeb9d49301d45b39859411c7a124690Doug Thompson mutex_unlock(&device_ctls_mutex); 394e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 395bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson /* Reschedule the workq for the next time period to start again 396bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * if the number of msec is for 1 sec, then adjust to the next 397bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * whole one second to save timers fireing all over the period 398bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * between integral seconds 399bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson */ 400bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson if (edac_dev->poll_msec == 1000) 401bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson queue_delayed_work(edac_workqueue, &edac_dev->work, 402c2ae24cfd1969a28e76641807026a3bbc11c5f31Anton Blanchard round_jiffies_relative(edac_dev->delay)); 403bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson else 404bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson queue_delayed_work(edac_workqueue, &edac_dev->work, 405bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson edac_dev->delay); 406e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 407e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 408e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 40981d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * edac_device_workq_setup 410e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * initialize a workq item for this edac_device instance 411e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * passing in the new delay period in msec 412e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 41381d87cb13e367bb804bf44889ae0de7369705d6cDave Jiangvoid edac_device_workq_setup(struct edac_device_ctl_info *edac_dev, 414052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson unsigned msec) 415e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 416e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf0("%s()\n", __func__); 417e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 418bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson /* take the arg 'msec' and set it into the control structure 419bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * to used in the time period calculation 420bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * then calc the number of jiffies that represents 421bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson */ 422e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->poll_msec = msec; 423bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson edac_dev->delay = msecs_to_jiffies(msec); 424e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 42581d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang INIT_DELAYED_WORK(&edac_dev->work, edac_device_workq_function); 426bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson 427bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson /* optimize here for the 1 second case, which will be normal value, to 428bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * fire ON the 1 second time event. This helps reduce all sorts of 429bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * timers firing on sub-second basis, while they are happy 430bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * to fire together on the 1 second exactly 431bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson */ 432bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson if (edac_dev->poll_msec == 1000) 433bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson queue_delayed_work(edac_workqueue, &edac_dev->work, 434c2ae24cfd1969a28e76641807026a3bbc11c5f31Anton Blanchard round_jiffies_relative(edac_dev->delay)); 435bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson else 436bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson queue_delayed_work(edac_workqueue, &edac_dev->work, 437bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson edac_dev->delay); 438e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 439e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 440e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 44181d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * edac_device_workq_teardown 442e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * stop the workq processing on this edac_dev 443e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 44481d87cb13e367bb804bf44889ae0de7369705d6cDave Jiangvoid edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev) 445e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 446e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson int status; 447e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 448e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson status = cancel_delayed_work(&edac_dev->work); 449e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (status == 0) { 450e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* workq instance might be running, wait for it */ 451e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson flush_workqueue(edac_workqueue); 452e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 453e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 454e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 455e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 456e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_reset_delay_period 457bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * 458bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * need to stop any outstanding workq queued up at this time 459bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * because we will be resetting the sleep time. 460bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson * Then restart the workq on the new delay 461e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 462079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompsonvoid edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev, 463052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson unsigned long value) 464e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 465bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson /* cancel the current workq request, without the mutex lock */ 46681d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang edac_device_workq_teardown(edac_dev); 467e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 468bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson /* acquire the mutex before doing the workq setup */ 469bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson mutex_lock(&device_ctls_mutex); 470bf52fa4a26567bfbf5b1d30f84cf0226e61d26cdDoug Thompson 471e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* restart the workq request, with new delay value */ 47281d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang edac_device_workq_setup(edac_dev, value); 473e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 4740ca84761faeb9d49301d45b39859411c7a124690Doug Thompson mutex_unlock(&device_ctls_mutex); 475e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 476e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 4771dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao/* 4781dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao * edac_device_alloc_index: Allocate a unique device index number 4791dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao * 4801dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao * Return: 4811dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao * allocated index number 4821dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao */ 4831dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciaoint edac_device_alloc_index(void) 4841dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao{ 4851dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao static atomic_t device_indexes = ATOMIC_INIT(0); 4861dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao 4871dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao return atomic_inc_return(&device_indexes) - 1; 4881dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao} 4891dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry CiaoEXPORT_SYMBOL_GPL(edac_device_alloc_index); 4901dc9b70d7d48abd8a5c6f83021f38992f3b5a77fHarry Ciao 491e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/** 492e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_add_device: Insert the 'edac_dev' structure into the 493e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device global list and create sysfs entries associated with 494e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device structure. 495e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * @edac_device: pointer to the edac_device structure to be added to the list 496e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 'edac_device' structure. 497e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 498e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Return: 499e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 0 Success 500e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * !0 Failure 501e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 502d45e7823baf655ced91c7987fb4ba9aae990ad6dDoug Thompsonint edac_device_add_device(struct edac_device_ctl_info *edac_dev) 503e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 504e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf0("%s()\n", __func__); 505e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 506e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#ifdef CONFIG_EDAC_DEBUG 507e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_debug_level >= 3) 508e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_dump_device(edac_dev); 509e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#endif 5100ca84761faeb9d49301d45b39859411c7a124690Doug Thompson mutex_lock(&device_ctls_mutex); 511e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 512e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (add_edac_dev_to_global_list(edac_dev)) 513e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson goto fail0; 514e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 515e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* set load time so that error rate can be tracked */ 516e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->start_time = jiffies; 517e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 518e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* create this instance's sysfs entries */ 519e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_device_create_sysfs(edac_dev)) { 520e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_WARNING, 521052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "failed to create sysfs device\n"); 522e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson goto fail1; 523e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 524e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 525e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* If there IS a check routine, then we are running POLLED */ 526e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_dev->edac_check != NULL) { 527e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* This instance is NOW RUNNING */ 528e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->op_state = OP_RUNNING_POLL; 529e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 53081d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang /* 53181d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * enable workq processing on this instance, 53281d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * default = 1000 msec 53381d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang */ 53481d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang edac_device_workq_setup(edac_dev, 1000); 535e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } else { 536e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->op_state = OP_RUNNING_INTERRUPT; 537e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 538e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 539e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Report action taken */ 540e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_INFO, 541052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "Giving out device to module '%s' controller " 542052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "'%s': DEV '%s' (%s)\n", 543052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson edac_dev->mod_name, 544052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson edac_dev->ctl_name, 54517aa7e034416e3080bc57a786d09ba0a4a044561Stephen Rothwell edac_dev_name(edac_dev), 546494d0d55bcc7ef94c744a59779327e45a27f7801Douglas Thompson edac_op_state_to_string(edac_dev->op_state)); 547e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 5480ca84761faeb9d49301d45b39859411c7a124690Doug Thompson mutex_unlock(&device_ctls_mutex); 549e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 0; 550e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 551052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompsonfail1: 552e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Some error, so remove the entry from the lsit */ 553e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson del_edac_device_from_global_list(edac_dev); 554e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 555052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompsonfail0: 5560ca84761faeb9d49301d45b39859411c7a124690Doug Thompson mutex_unlock(&device_ctls_mutex); 557e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 1; 558e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 559e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_add_device); 560e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 561e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/** 562e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_del_device: 563e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Remove sysfs entries for specified edac_device structure and 564e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * then remove edac_device structure from global list 565e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 566e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * @pdev: 567e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Pointer to 'struct device' representing edac_device 568e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * structure to remove. 569e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 570e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Return: 571e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Pointer to removed edac_device structure, 572e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * OR NULL if device not found. 573e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 574079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompsonstruct edac_device_ctl_info *edac_device_del_device(struct device *dev) 575e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 576e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev; 577e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 578b2a4ac0c2860b27670bce99e8c9c281bf431c272Doug Thompson debugf0("%s()\n", __func__); 579e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 5800ca84761faeb9d49301d45b39859411c7a124690Doug Thompson mutex_lock(&device_ctls_mutex); 581e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 58252490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson /* Find the structure on the list, if not there, then leave */ 58352490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson edac_dev = find_edac_device_by_dev(dev); 58452490c8d07680a7ecc3c1a70a16841455d37e96aDouglas Thompson if (edac_dev == NULL) { 5850ca84761faeb9d49301d45b39859411c7a124690Doug Thompson mutex_unlock(&device_ctls_mutex); 586e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return NULL; 587e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 588e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 589e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* mark this instance as OFFLINE */ 590e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->op_state = OP_OFFLINE; 591e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 592e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* deregister from global list */ 593e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson del_edac_device_from_global_list(edac_dev); 594e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 5950ca84761faeb9d49301d45b39859411c7a124690Doug Thompson mutex_unlock(&device_ctls_mutex); 596e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 597d519c8d9ccb7956e61a55ce3a0fd6a25f42cbb33Harry Ciao /* clear workq processing on this instance */ 598d519c8d9ccb7956e61a55ce3a0fd6a25f42cbb33Harry Ciao edac_device_workq_teardown(edac_dev); 599d519c8d9ccb7956e61a55ce3a0fd6a25f42cbb33Harry Ciao 6001c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson /* Tear down the sysfs entries for this instance */ 6011c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson edac_device_remove_sysfs(edac_dev); 6021c3631ff1f805cb72644fcde02b7c58950f21cd5Douglas Thompson 603e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_printk(KERN_INFO, EDAC_MC, 604052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "Removed device %d for %s %s: DEV %s\n", 605052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson edac_dev->dev_idx, 60617aa7e034416e3080bc57a786d09ba0a4a044561Stephen Rothwell edac_dev->mod_name, edac_dev->ctl_name, edac_dev_name(edac_dev)); 607e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 608e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev; 609e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 610079708b9173595bf74b31b14c36e946359ae6c7eDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_del_device); 611e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 612e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic inline int edac_device_get_log_ce(struct edac_device_ctl_info *edac_dev) 613e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 614e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev->log_ce; 615e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 616e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 617e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic inline int edac_device_get_log_ue(struct edac_device_ctl_info *edac_dev) 618e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 619e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev->log_ue; 620e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 621e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 622079708b9173595bf74b31b14c36e946359ae6c7eDouglas Thompsonstatic inline int edac_device_get_panic_on_ue(struct edac_device_ctl_info 623052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson *edac_dev) 624e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 625e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev->panic_on_ue; 626e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 627e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 628e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 629e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_handle_ce 630e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * perform a common output and handling of an 'edac_dev' CE event 631e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 632e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonvoid edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, 633052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson int inst_nr, int block_nr, const char *msg) 634e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 635e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_instance *instance; 636e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_block *block = NULL; 637e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 638e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) { 639e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_ERR, 640052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "INTERNAL ERROR: 'instance' out of range " 641052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "(%d >= %d)\n", inst_nr, 642052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson edac_dev->nr_instances); 643e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return; 644e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 645e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 646e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson instance = edac_dev->instances + inst_nr; 647e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 648e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) { 649e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_ERR, 650052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "INTERNAL ERROR: instance %d 'block' " 651052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "out of range (%d >= %d)\n", 652052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson inst_nr, block_nr, 653052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson instance->nr_blocks); 654e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return; 655e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 656e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 657e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (instance->nr_blocks > 0) { 658e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block = instance->blocks + block_nr; 659e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block->counters.ce_count++; 660e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 661e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 66225985edcedea6396277003854657b5f3cb31a628Lucas De Marchi /* Propagate the count up the 'totals' tree */ 663e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson instance->counters.ce_count++; 664e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->counters.ce_count++; 665e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 666e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_device_get_log_ce(edac_dev)) 667e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_WARNING, 668052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "CE: %s instance: %s block: %s '%s'\n", 669052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson edac_dev->ctl_name, instance->name, 670052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson block ? block->name : "N/A", msg); 671e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 672e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_handle_ce); 673e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 674e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 675e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_handle_ue 676e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * perform a common output and handling of an 'edac_dev' UE event 677e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 678e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonvoid edac_device_handle_ue(struct edac_device_ctl_info *edac_dev, 679052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson int inst_nr, int block_nr, const char *msg) 680e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 681e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_instance *instance; 682e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_block *block = NULL; 683e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 684e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) { 685e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_ERR, 686052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "INTERNAL ERROR: 'instance' out of range " 687052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "(%d >= %d)\n", inst_nr, 688052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson edac_dev->nr_instances); 689e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return; 690e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 691e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 692e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson instance = edac_dev->instances + inst_nr; 693e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 694e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) { 695e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_ERR, 696052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "INTERNAL ERROR: instance %d 'block' " 697052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "out of range (%d >= %d)\n", 698052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson inst_nr, block_nr, 699052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson instance->nr_blocks); 700e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return; 701e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 702e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 703e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (instance->nr_blocks > 0) { 704e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block = instance->blocks + block_nr; 705e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block->counters.ue_count++; 706e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 707e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 70825985edcedea6396277003854657b5f3cb31a628Lucas De Marchi /* Propagate the count up the 'totals' tree */ 709e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson instance->counters.ue_count++; 710e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->counters.ue_count++; 711e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 712e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_device_get_log_ue(edac_dev)) 713e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_EMERG, 714052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson "UE: %s instance: %s block: %s '%s'\n", 715052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson edac_dev->ctl_name, instance->name, 716052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson block ? block->name : "N/A", msg); 717e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 718e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_device_get_panic_on_ue(edac_dev)) 719d391a7b8147d12b0e5141fb65829856fb0c289dcDouglas Thompson panic("EDAC %s: UE instance: %s block %s '%s'\n", 720052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson edac_dev->ctl_name, instance->name, 721052dfb45ccb5ea354a426b52556bcfee75b9d2f5Douglas Thompson block ? block->name : "N/A", msg); 722e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 723079708b9173595bf74b31b14c36e946359ae6c7eDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_handle_ue); 724