edac_device.c revision 81d87cb13e367bb804bf44889ae0de7369705d6c
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> 23e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/spinlock.h> 24e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/list.h> 25e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#include <linux/sysdev.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 34e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* lock to memory controller's control array */ 35e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic DECLARE_MUTEX(device_ctls_mutex); 36e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic struct list_head edac_device_list = LIST_HEAD_INIT(edac_device_list); 37e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 38e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 39e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic inline void lock_device_list(void) 40e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 41e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson down(&device_ctls_mutex); 42e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 43e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 44e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic inline void unlock_device_list(void) 45e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 46e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson up(&device_ctls_mutex); 47e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 48e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 49e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 50e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#ifdef CONFIG_EDAC_DEBUG 51e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic void edac_device_dump_device(struct edac_device_ctl_info *edac_dev) 52e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 53e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf3("\tedac_dev = %p dev_idx=%d \n", edac_dev,edac_dev->dev_idx); 54e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf4("\tedac_dev->edac_check = %p\n", edac_dev->edac_check); 55e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf3("\tdev = %p\n", edac_dev->dev); 56e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf3("\tmod_name:ctl_name = %s:%s\n", 57e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->mod_name, edac_dev->ctl_name); 58e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf3("\tpvt_info = %p\n\n", edac_dev->pvt_info); 59e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 60e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#endif /* CONFIG_EDAC_DEBUG */ 61e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 62e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 63e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * The alloc() and free() functions for the 'edac_device' control info 64e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * structure. A MC driver will allocate one of these for each edac_device 65e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * it is going to control/register with the EDAC CORE. 66e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 67e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstruct edac_device_ctl_info *edac_device_alloc_ctl_info( 68e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned sz_private, 69e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson char *edac_device_name, 70e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned nr_instances, 71e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson char *edac_block_name, 72e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned nr_blocks, 73e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned offset_value, 74e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_attrib_spec *attrib_spec, 75e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned nr_attribs) 76e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 77e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *dev_ctl; 78e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_instance *dev_inst, *inst; 79e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_block *dev_blk, *blk_p, *blk; 80e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_attrib *dev_attrib, *attrib_p, *attrib; 81e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned total_size; 82e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned count; 83e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned instance, block, attr; 84e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson void *pvt; 85e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 86e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf1("%s() instances=%d blocks=%d\n", 87e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson __func__,nr_instances,nr_blocks); 88e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 89e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Figure out the offsets of the various items from the start of an 90e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * ctl_info structure. We want the alignment of each item 91e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * to be at least as stringent as what the compiler would 92e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * provide if we could simply hardcode everything into a single struct. 93e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 94e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl = (struct edac_device_ctl_info *) 0; 95e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 96e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Calc the 'end' offset past the ctl_info structure */ 97e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_inst = (struct edac_device_instance *) 98e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_align_ptr(&dev_ctl[1],sizeof(*dev_inst)); 99e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 100e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Calc the 'end' offset past the instance array */ 101e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_blk = (struct edac_device_block *) 102e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_align_ptr(&dev_inst[nr_instances],sizeof(*dev_blk)); 103e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 104e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Calc the 'end' offset past the dev_blk array */ 105e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson count = nr_instances * nr_blocks; 106e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_attrib = (struct edac_attrib *) 107e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_align_ptr(&dev_blk[count],sizeof(*dev_attrib)); 108e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 109e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Check for case of NO attributes specified */ 110e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (nr_attribs > 0) 111e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson count *= nr_attribs; 112e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 113e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Calc the 'end' offset past the attributes array */ 114e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson pvt = edac_align_ptr(&dev_attrib[count],sz_private); 115e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson total_size = ((unsigned long) pvt) + sz_private; 116e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 117e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Allocate the amount of memory for the set of control structures */ 118e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((dev_ctl = kmalloc(total_size, GFP_KERNEL)) == NULL) 119e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return NULL; 120e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 121e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Adjust pointers so they point within the memory we just allocated 122e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * rather than an imaginary chunk of memory located at address 0. 123e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 124e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_inst = (struct edac_device_instance *) 125e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson (((char *) dev_ctl) + ((unsigned long) dev_inst)); 126e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_blk = (struct edac_device_block *) 127e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson (((char *) dev_ctl) + ((unsigned long) dev_blk)); 128e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_attrib = (struct edac_attrib *) 129e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson (((char *) dev_ctl) + ((unsigned long) dev_attrib)); 130e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson pvt = sz_private ? 131e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson (((char *) dev_ctl) + ((unsigned long) pvt)) : NULL; 132e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 133e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson memset(dev_ctl, 0, total_size); /* clear all fields */ 134e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl->nr_instances = nr_instances; 135e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl->instances = dev_inst; 136e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl->pvt_info = pvt; 137e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 138e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Name of this edac device, ensure null terminated */ 139e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson snprintf(dev_ctl->name,sizeof(dev_ctl->name),"%s", edac_device_name); 140e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl->name[sizeof(dev_ctl->name)-1] = '\0'; 141e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 142e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Initialize every Instance */ 143e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson for (instance = 0; instance < nr_instances; instance++) { 144e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson inst = &dev_inst[instance]; 145e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson inst->ctl = dev_ctl; 146e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson inst->nr_blocks = nr_blocks; 147e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson blk_p = &dev_blk[instance * nr_blocks]; 148e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson inst->blocks = blk_p; 149e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 150e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* name of this instance */ 151e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson snprintf(inst->name, sizeof(inst->name), 152e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "%s%u", edac_device_name, instance); 153e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson inst->name[sizeof(inst->name)-1] = '\0'; 154e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 155e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Initialize every block in each instance */ 156e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson for ( block = 0; 157e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block < nr_blocks; 158e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block++) { 159e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson blk = &blk_p[block]; 160e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson blk->instance = inst; 161e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson blk->nr_attribs = nr_attribs; 162e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson attrib_p = &dev_attrib[block * nr_attribs]; 163e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson blk->attribs = attrib_p; 164e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson snprintf(blk->name, sizeof(blk->name), 165e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "%s%d", edac_block_name,block+1); 166e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson blk->name[sizeof(blk->name)-1] = '\0'; 167e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 168e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf1("%s() instance=%d block=%d name=%s\n", 169e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson __func__, instance,block,blk->name); 170e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 171e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (attrib_spec != NULL) { 172e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* when there is an attrib_spec passed int then 173e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Initialize every attrib of each block 174e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 175e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson for (attr = 0; attr < nr_attribs; attr++) { 176e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson attrib = &attrib_p[attr]; 177e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson attrib->block = blk; 178e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 179e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Link each attribute to the caller's 180e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * spec entry, for name and type 181e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 182e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson attrib->spec = &attrib_spec[attr]; 183e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 184e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 185e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 186e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 187e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 188e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Mark this instance as merely ALLOCATED */ 189e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson dev_ctl->op_state = OP_ALLOC; 190e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 191e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return dev_ctl; 192e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 193e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_alloc_ctl_info); 194e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 195e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 196e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_free_ctl_info() 197e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * frees the memory allocated by the edac_device_alloc_ctl_info() 198e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * function 199e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 200e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonvoid edac_device_free_ctl_info( struct edac_device_ctl_info *ctl_info) { 201e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson kfree(ctl_info); 202e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 203e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_free_ctl_info); 204e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 205e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 206e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 207e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 208e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * find_edac_device_by_dev 209e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * scans the edac_device list for a specific 'struct device *' 210e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 211e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic struct edac_device_ctl_info * 212e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonfind_edac_device_by_dev(struct device *dev) 213e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 214e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev; 215e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct list_head *item; 216e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 217e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf3("%s()\n", __func__); 218e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 219e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson list_for_each(item, &edac_device_list) { 220e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev = list_entry(item, struct edac_device_ctl_info, link); 221e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 222e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_dev->dev == dev) 223e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev; 224e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 225e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 226e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return NULL; 227e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 228e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 229e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 230e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * add_edac_dev_to_global_list 231e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Before calling this function, caller must 232e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * assign a unique value to edac_dev->dev_idx. 233e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Return: 234e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 0 on success 235e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 1 on failure. 236e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 237e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic int add_edac_dev_to_global_list (struct edac_device_ctl_info *edac_dev) 238e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 239e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct list_head *item, *insert_before; 240e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *rover; 241e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 242e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson insert_before = &edac_device_list; 243e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 244e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Determine if already on the list */ 245e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (unlikely((rover = find_edac_device_by_dev(edac_dev->dev)) != NULL)) 246e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson goto fail0; 247e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 248e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Insert in ascending order by 'dev_idx', so find position */ 249e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson list_for_each(item, &edac_device_list) { 250e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson rover = list_entry(item, struct edac_device_ctl_info, link); 251e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 252e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (rover->dev_idx >= edac_dev->dev_idx) { 253e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (unlikely(rover->dev_idx == edac_dev->dev_idx)) 254e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson goto fail1; 255e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 256e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson insert_before = item; 257e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson break; 258e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 259e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 260e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 261e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson list_add_tail_rcu(&edac_dev->link, insert_before); 262e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 0; 263e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 264e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonfail0: 265e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_printk(KERN_WARNING, EDAC_MC, 266e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "%s (%s) %s %s already assigned %d\n", 267c4192705fec85219086231a1c0fa61e8776e2c3bDave Jiang rover->dev->bus_id, dev_name(rover), 268e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson rover->mod_name, rover->ctl_name, rover->dev_idx); 269e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 1; 270e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 271e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonfail1: 272e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_printk(KERN_WARNING, EDAC_MC, 273e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "bug in low-level driver: attempt to assign\n" 274e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson " duplicate dev_idx %d in %s()\n", rover->dev_idx, __func__); 275e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 1; 276e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 277e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 278e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 279e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * complete_edac_device_list_del 280e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 281e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic void complete_edac_device_list_del(struct rcu_head *head) 282e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 283e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev; 284e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 285e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev = container_of(head, struct edac_device_ctl_info, rcu); 286e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson INIT_LIST_HEAD(&edac_dev->link); 287e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson complete(&edac_dev->complete); 288e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 289e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 290e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 291e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * del_edac_device_from_global_list 292e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 293e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic void del_edac_device_from_global_list( 294e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_device) 295e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 296e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson list_del_rcu(&edac_device->link); 297e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson init_completion(&edac_device->complete); 298e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson call_rcu(&edac_device->rcu, complete_edac_device_list_del); 299e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson wait_for_completion(&edac_device->complete); 300e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 301e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 302e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/** 303e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_find 304e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Search for a edac_device_ctl_info structure whose index is 'idx'. 305e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 306e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * If found, return a pointer to the structure. 307e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Else return NULL. 308e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 309e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Caller must hold device_ctls_mutex. 310e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 311e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstruct edac_device_ctl_info * edac_device_find(int idx) 312e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 313e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct list_head *item; 314e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev; 315e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 316e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Iterate over list, looking for exact match of ID */ 317e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson list_for_each(item, &edac_device_list) { 318e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev = list_entry(item, struct edac_device_ctl_info, link); 319e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 320e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_dev->dev_idx >= idx) { 321e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_dev->dev_idx == idx) 322e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev; 323e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 324e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* not on list, so terminate early */ 325e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson break; 326e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 327e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 328e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 329e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return NULL; 330e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 331e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL(edac_device_find); 332e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 333e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 334e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 33581d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * edac_device_workq_function 336e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * performs the operation scheduled by a workq request 337e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 338e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)) 33981d87cb13e367bb804bf44889ae0de7369705d6cDave Jiangstatic void edac_device_workq_function(struct work_struct *work_req) 340e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 341e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct delayed_work *d_work = (struct delayed_work*) work_req; 342e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev = 343e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson to_edac_device_ctl_work(d_work); 344e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#else 34581d87cb13e367bb804bf44889ae0de7369705d6cDave Jiangstatic void edac_device_workq_function(void *ptr) 346e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 347e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev = 348e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson (struct edac_device_ctl_info *) ptr; 349e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#endif 350e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 351e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson //debugf0("%s() here and running\n", __func__); 352e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson lock_device_list(); 353e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 354e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Only poll controllers that are running polled and have a check */ 355e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((edac_dev->op_state == OP_RUNNING_POLL) && 356e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson (edac_dev->edac_check != NULL)) { 357e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->edac_check(edac_dev); 358e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 359e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 360e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unlock_device_list(); 361e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 362e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Reschedule */ 363e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson queue_delayed_work(edac_workqueue,&edac_dev->work, edac_dev->delay); 364e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 365e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 366e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 36781d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * edac_device_workq_setup 368e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * initialize a workq item for this edac_device instance 369e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * passing in the new delay period in msec 370e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 37181d87cb13e367bb804bf44889ae0de7369705d6cDave Jiangvoid edac_device_workq_setup(struct edac_device_ctl_info *edac_dev, 37281d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang unsigned msec) 373e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 374e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf0("%s()\n", __func__); 375e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 376e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->poll_msec = msec; 37781d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang edac_calc_delay(edac_dev); /* Calc delay jiffies */ 378e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 379e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)) 38081d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang INIT_DELAYED_WORK(&edac_dev->work, edac_device_workq_function); 381e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#else 38281d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang INIT_WORK(&edac_dev->work, edac_device_workq_function, edac_dev); 383e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#endif 38481d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang queue_delayed_work(edac_workqueue, &edac_dev->work, edac_dev->delay); 385e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 386e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 387e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 38881d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * edac_device_workq_teardown 389e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * stop the workq processing on this edac_dev 390e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 39181d87cb13e367bb804bf44889ae0de7369705d6cDave Jiangvoid edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev) 392e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 393e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson int status; 394e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 395e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson status = cancel_delayed_work(&edac_dev->work); 396e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (status == 0) { 397e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* workq instance might be running, wait for it */ 398e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson flush_workqueue(edac_workqueue); 399e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 400e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 401e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 402e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 403e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_reset_delay_period 404e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 405e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 406e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonvoid edac_device_reset_delay_period( 407e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev, 408e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unsigned long value) 409e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 410e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson lock_device_list(); 411e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 412e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* cancel the current workq request */ 41381d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang edac_device_workq_teardown(edac_dev); 414e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 415e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* restart the workq request, with new delay value */ 41681d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang edac_device_workq_setup(edac_dev, value); 417e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 418e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unlock_device_list(); 419e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 420e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 421e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 422e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_op_state_toString(edac_dev) 423e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 424e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic char *edac_op_state_toString(struct edac_device_ctl_info *edac_dev) 425e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 426e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson int opstate = edac_dev->op_state; 427e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 428e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (opstate == OP_RUNNING_POLL) 429e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return "POLLED"; 430e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson else if (opstate == OP_RUNNING_INTERRUPT) 431e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return "INTERRUPT"; 432e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson else if (opstate == OP_RUNNING_POLL_INTR) 433e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return "POLL-INTR"; 434e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson else if (opstate == OP_ALLOC) 435e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return "ALLOC"; 436e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson else if (opstate == OP_OFFLINE) 437e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return "OFFLINE"; 438e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 439e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return "UNKNOWN"; 440e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 441e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 442e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/** 443e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_add_device: Insert the 'edac_dev' structure into the 444e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device global list and create sysfs entries associated with 445e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device structure. 446e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * @edac_device: pointer to the edac_device structure to be added to the list 447e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * @edac_idx: A unique numeric identifier to be assigned to the 448e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 'edac_device' structure. 449e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 450e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Return: 451e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 0 Success 452e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * !0 Failure 453e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 454e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonint edac_device_add_device(struct edac_device_ctl_info *edac_dev, int edac_idx) 455e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 456e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf0("%s()\n", __func__); 457e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 458e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->dev_idx = edac_idx; 459e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#ifdef CONFIG_EDAC_DEBUG 460e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_debug_level >= 3) 461e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_dump_device(edac_dev); 462e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson#endif 463e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson lock_device_list(); 464e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 465e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (add_edac_dev_to_global_list(edac_dev)) 466e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson goto fail0; 467e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 468e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* set load time so that error rate can be tracked */ 469e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->start_time = jiffies; 470e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 471e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* create this instance's sysfs entries */ 472e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_device_create_sysfs(edac_dev)) { 473e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_WARNING, 474e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "failed to create sysfs device\n"); 475e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson goto fail1; 476e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 477e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 478e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* If there IS a check routine, then we are running POLLED */ 479e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_dev->edac_check != NULL) { 480e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* This instance is NOW RUNNING */ 481e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->op_state = OP_RUNNING_POLL; 482e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 48381d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang /* 48481d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * enable workq processing on this instance, 48581d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang * default = 1000 msec 48681d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang */ 48781d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang edac_device_workq_setup(edac_dev, 1000); 488e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } else { 489e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->op_state = OP_RUNNING_INTERRUPT; 490e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 491e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 492e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 493e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Report action taken */ 494e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_INFO, 495e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "Giving out device to module '%s' controller '%s': DEV '%s' (%s)\n", 496e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->mod_name, 497e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->ctl_name, 498c4192705fec85219086231a1c0fa61e8776e2c3bDave Jiang dev_name(edac_dev), 499e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_op_state_toString(edac_dev) 500e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson ); 501e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 502e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unlock_device_list(); 503e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 0; 504e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 505e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonfail1: 506e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Some error, so remove the entry from the lsit */ 507e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson del_edac_device_from_global_list(edac_dev); 508e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 509e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonfail0: 510e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unlock_device_list(); 511e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return 1; 512e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 513e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_add_device); 514e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 515e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/** 516e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_del_device: 517e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Remove sysfs entries for specified edac_device structure and 518e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * then remove edac_device structure from global list 519e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 520e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * @pdev: 521e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Pointer to 'struct device' representing edac_device 522e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * structure to remove. 523e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * 524e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Return: 525e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * Pointer to removed edac_device structure, 526e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * OR NULL if device not found. 527e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 528e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstruct edac_device_ctl_info * edac_device_del_device(struct device *dev) 529e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 530e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev; 531e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 532e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson debugf0("MC: %s()\n", __func__); 533e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 534e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson lock_device_list(); 535e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 536e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((edac_dev = find_edac_device_by_dev(dev)) == NULL) { 537e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unlock_device_list(); 538e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return NULL; 539e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 540e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 541e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* mark this instance as OFFLINE */ 542e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->op_state = OP_OFFLINE; 543e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 544e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* clear workq processing on this instance */ 54581d87cb13e367bb804bf44889ae0de7369705d6cDave Jiang edac_device_workq_teardown(edac_dev); 546e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 547e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Tear down the sysfs entries for this instance */ 548e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_remove_sysfs(edac_dev); 549e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 550e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* deregister from global list */ 551e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson del_edac_device_from_global_list(edac_dev); 552e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 553e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson unlock_device_list(); 554e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 555e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_printk(KERN_INFO, EDAC_MC, 556e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "Removed device %d for %s %s: DEV %s\n", 557e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->dev_idx, 558e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->mod_name, 559e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->ctl_name, 560c4192705fec85219086231a1c0fa61e8776e2c3bDave Jiang dev_name(edac_dev)); 561e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 562e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev; 563e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 564e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_del_device); 565e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 566e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 567e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic inline int edac_device_get_log_ce(struct edac_device_ctl_info *edac_dev) 568e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 569e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev->log_ce; 570e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 571e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 572e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic inline int edac_device_get_log_ue(struct edac_device_ctl_info *edac_dev) 573e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 574e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev->log_ue; 575e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 576e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 577e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonstatic inline int edac_device_get_panic_on_ue( 578e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_ctl_info *edac_dev) 579e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 580e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return edac_dev->panic_on_ue; 581e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 582e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 583e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 584e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_handle_ce 585e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * perform a common output and handling of an 'edac_dev' CE event 586e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 587e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonvoid edac_device_handle_ce(struct edac_device_ctl_info *edac_dev, 588e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson int inst_nr, int block_nr, const char *msg) 589e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 590e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_instance *instance; 591e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_block *block = NULL; 592e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 593e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) { 594e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_ERR, 595e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "INTERNAL ERROR: 'instance' out of range " 596e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "(%d >= %d)\n", inst_nr, edac_dev->nr_instances); 597e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return; 598e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 599e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 600e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson instance = edac_dev->instances + inst_nr; 601e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 602e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) { 603e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_ERR, 604e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "INTERNAL ERROR: instance %d 'block' out of range " 605e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "(%d >= %d)\n", inst_nr, block_nr, instance->nr_blocks); 606e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return; 607e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 608e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 609e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (instance->nr_blocks > 0) { 610e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block = instance->blocks + block_nr; 611e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block->counters.ce_count++; 612e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 613e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 614e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Propogate the count up the 'totals' tree */ 615e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson instance->counters.ce_count++; 616e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->counters.ce_count++; 617e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 618e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_device_get_log_ce(edac_dev)) 619e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_WARNING, 620e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "CE ctl: %s, instance: %s, block: %s: %s\n", 621e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->ctl_name, instance->name, 622e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block ? block->name : "N/A", msg); 623e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 624e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_handle_ce); 625e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 626e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson/* 627e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * edac_device_handle_ue 628e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson * perform a common output and handling of an 'edac_dev' UE event 629e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson */ 630e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompsonvoid edac_device_handle_ue(struct edac_device_ctl_info *edac_dev, 631e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson int inst_nr, int block_nr, const char *msg) 632e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson{ 633e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_instance *instance; 634e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson struct edac_device_block *block = NULL; 635e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 636e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) { 637e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_ERR, 638e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "INTERNAL ERROR: 'instance' out of range " 639e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "(%d >= %d)\n", inst_nr, edac_dev->nr_instances); 640e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return; 641e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 642e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 643e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson instance = edac_dev->instances + inst_nr; 644e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 645e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) { 646e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_ERR, 647e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "INTERNAL ERROR: instance %d 'block' out of range " 648e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "(%d >= %d)\n", inst_nr, block_nr, instance->nr_blocks); 649e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson return; 650e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 651e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 652e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (instance->nr_blocks > 0) { 653e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block = instance->blocks + block_nr; 654e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block->counters.ue_count++; 655e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson } 656e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 657e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson /* Propogate the count up the 'totals' tree */ 658e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson instance->counters.ue_count++; 659e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->counters.ue_count++; 660e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 661e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_device_get_log_ue(edac_dev)) 662e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_device_printk(edac_dev, KERN_EMERG, 663e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson "UE ctl: %s, instance: %s, block: %s: %s\n", 664e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->ctl_name, instance->name, 665e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block ? block->name : "N/A", msg); 666e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 667e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson if (edac_device_get_panic_on_ue(edac_dev)) 668e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson panic("EDAC %s: UE instance: %s, block %s: %s\n", 669e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson edac_dev->ctl_name, instance->name, 670e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson block ? block->name : "N/A", msg); 671e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson} 672e27e3dac651771fe3250f6305dee277bce29fc5dDouglas ThompsonEXPORT_SYMBOL_GPL(edac_device_handle_ue); 673e27e3dac651771fe3250f6305dee277bce29fc5dDouglas Thompson 674