[linux.git] / drivers / edac / i82860_edac.c

/*
 * Intel 82860 Memory Controller kernel module
 * (C) 2005 Red Hat (http://www.redhat.com)
 * This file may be distributed under the terms of the
 * GNU General Public License.
 *
 * Written by Ben Woodard <[email protected]>
 * shamelessly copied from and based upon the edac_i82875 driver
 * by Thayne Harbaugh of Linux Networx. (http://lnxi.com)
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
#include <linux/edac.h>
#include "edac_core.h"

#define  I82860_REVISION " Ver: 2.0.2"
#define EDAC_MOD_STR	"i82860_edac"

#define i82860_printk(level, fmt, arg...) \
	edac_printk(level, "i82860", fmt, ##arg)

#define i82860_mc_printk(mci, level, fmt, arg...) \
	edac_mc_chipset_printk(mci, level, "i82860", fmt, ##arg)

#ifndef PCI_DEVICE_ID_INTEL_82860_0
#define PCI_DEVICE_ID_INTEL_82860_0	0x2531
#endif				/* PCI_DEVICE_ID_INTEL_82860_0 */

#define I82860_MCHCFG 0x50
#define I82860_GBA 0x60
#define I82860_GBA_MASK 0x7FF
#define I82860_GBA_SHIFT 24
#define I82860_ERRSTS 0xC8
#define I82860_EAP 0xE4
#define I82860_DERRCTL_STS 0xE2

enum i82860_chips {
	I82860 = 0,
};

struct i82860_dev_info {
	const char *ctl_name;
};

struct i82860_error_info {
	u16 errsts;
	u32 eap;
	u16 derrsyn;
	u16 errsts2;
};

static const struct i82860_dev_info i82860_devs[] = {
	[I82860] = {
		.ctl_name = "i82860"},
};

static struct pci_dev *mci_pdev;	/* init dev: in case that AGP code
					 * has already registered driver
					 */
static struct edac_pci_ctl_info *i82860_pci;

static void i82860_get_error_info(struct mem_ctl_info *mci,
				struct i82860_error_info *info)
{
	struct pci_dev *pdev;

	pdev = to_pci_dev(mci->pdev);

	/*
	 * This is a mess because there is no atomic way to read all the
	 * registers at once and the registers can transition from CE being
	 * overwritten by UE.
	 */
	pci_read_config_word(pdev, I82860_ERRSTS, &info->errsts);
	pci_read_config_dword(pdev, I82860_EAP, &info->eap);
	pci_read_config_word(pdev, I82860_DERRCTL_STS, &info->derrsyn);
	pci_read_config_word(pdev, I82860_ERRSTS, &info->errsts2);

	pci_write_bits16(pdev, I82860_ERRSTS, 0x0003, 0x0003);

	/*
	 * If the error is the same for both reads then the first set of reads
	 * is valid.  If there is a change then there is a CE no info and the
	 * second set of reads is valid and should be UE info.
	 */
	if (!(info->errsts2 & 0x0003))
		return;

	if ((info->errsts ^ info->errsts2) & 0x0003) {
		pci_read_config_dword(pdev, I82860_EAP, &info->eap);
		pci_read_config_word(pdev, I82860_DERRCTL_STS, &info->derrsyn);
	}
}

static int i82860_process_error_info(struct mem_ctl_info *mci,
				struct i82860_error_info *info,
				int handle_errors)
{
	struct dimm_info *dimm;
	int row;

	if (!(info->errsts2 & 0x0003))
		return 0;

	if (!handle_errors)
		return 1;

	if ((info->errsts ^ info->errsts2) & 0x0003) {
		edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
				     -1, -1, -1, "UE overwrote CE", "", NULL);
		info->errsts = info->errsts2;
	}

	info->eap >>= PAGE_SHIFT;
	row = edac_mc_find_csrow_by_page(mci, info->eap);
	dimm = mci->csrows[row].channels[0].dimm;

	if (info->errsts & 0x0002)
		edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
				     info->eap, 0, 0,
				     dimm->location[0], dimm->location[1], -1,
				     "i82860 UE", "", NULL);
	else
		edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
				     info->eap, 0, info->derrsyn,
				     dimm->location[0], dimm->location[1], -1,
				     "i82860 CE", "", NULL);

	return 1;
}

static void i82860_check(struct mem_ctl_info *mci)
{
	struct i82860_error_info info;

	debugf1("MC%d: %s()\n", mci->mc_idx, __func__);
	i82860_get_error_info(mci, &info);
	i82860_process_error_info(mci, &info, 1);
}

static void i82860_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev)
{
	unsigned long last_cumul_size;
	u16 mchcfg_ddim;	/* DRAM Data Integrity Mode 0=none, 2=edac */
	u16 value;
	u32 cumul_size;
	struct csrow_info *csrow;
	struct dimm_info *dimm;
	int index;

	pci_read_config_word(pdev, I82860_MCHCFG, &mchcfg_ddim);
	mchcfg_ddim = mchcfg_ddim & 0x180;
	last_cumul_size = 0;

	/* The group row boundary (GRA) reg values are boundary address
	 * for each DRAM row with a granularity of 16MB.  GRA regs are
	 * cumulative; therefore GRA15 will contain the total memory contained
	 * in all eight rows.
	 */
	for (index = 0; index < mci->nr_csrows; index++) {
		csrow = &mci->csrows[index];
		dimm = csrow->channels[0].dimm;

		pci_read_config_word(pdev, I82860_GBA + index * 2, &value);
		cumul_size = (value & I82860_GBA_MASK) <<
			(I82860_GBA_SHIFT - PAGE_SHIFT);
		debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
			cumul_size);

		if (cumul_size == last_cumul_size)
			continue;	/* not populated */

		csrow->first_page = last_cumul_size;
		csrow->last_page = cumul_size - 1;
		dimm->nr_pages = cumul_size - last_cumul_size;
		last_cumul_size = cumul_size;
		dimm->grain = 1 << 12;	/* I82860_EAP has 4KiB reolution */
		dimm->mtype = MEM_RMBS;
		dimm->dtype = DEV_UNKNOWN;
		dimm->edac_mode = mchcfg_ddim ? EDAC_SECDED : EDAC_NONE;
	}
}

static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
{
	struct mem_ctl_info *mci;
	struct edac_mc_layer layers[2];
	struct i82860_error_info discard;

	/*
	 * RDRAM has channels but these don't map onto the csrow abstraction.
	 * According with the datasheet, there are 2 Rambus channels, supporting
	 * up to 16 direct RDRAM devices.
	 * The device groups from the GRA registers seem to map reasonably
	 * well onto the notion of a chip select row.
	 * There are 16 GRA registers and since the name is associated with
	 * the channel and the GRA registers map to physical devices so we are
	 * going to make 1 channel for group.
	 */
	layers[0].type = EDAC_MC_LAYER_CHANNEL;
	layers[0].size = 2;
	layers[0].is_virt_csrow = true;
	layers[1].type = EDAC_MC_LAYER_SLOT;
	layers[1].size = 8;
	layers[1].is_virt_csrow = true;
	mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, 0);
	if (!mci)
		return -ENOMEM;

	debugf3("%s(): init mci\n", __func__);
	mci->pdev = &pdev->dev;
	mci->mtype_cap = MEM_FLAG_DDR;
	mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
	/* I"m not sure about this but I think that all RDRAM is SECDED */
	mci->edac_cap = EDAC_FLAG_SECDED;
	mci->mod_name = EDAC_MOD_STR;
	mci->mod_ver = I82860_REVISION;
	mci->ctl_name = i82860_devs[dev_idx].ctl_name;
	mci->dev_name = pci_name(pdev);
	mci->edac_check = i82860_check;
	mci->ctl_page_to_phys = NULL;
	i82860_init_csrows(mci, pdev);
	i82860_get_error_info(mci, &discard);	/* clear counters */

	/* Here we assume that we will never see multiple instances of this
	 * type of memory controller.  The ID is therefore hardcoded to 0.
	 */
	if (edac_mc_add_mc(mci)) {
		debugf3("%s(): failed edac_mc_add_mc()\n", __func__);
		goto fail;
	}

	/* allocating generic PCI control info */
	i82860_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR);
	if (!i82860_pci) {
		printk(KERN_WARNING
			"%s(): Unable to create PCI control\n",
			__func__);
		printk(KERN_WARNING
			"%s(): PCI error report via EDAC not setup\n",
			__func__);
	}

	/* get this far and it's successful */
	debugf3("%s(): success\n", __func__);

	return 0;

fail:
	edac_mc_free(mci);
	return -ENODEV;
}

/* returns count (>= 0), or negative on error */
static int __devinit i82860_init_one(struct pci_dev *pdev,
				const struct pci_device_id *ent)
{
	int rc;

	debugf0("%s()\n", __func__);
	i82860_printk(KERN_INFO, "i82860 init one\n");

	if (pci_enable_device(pdev) < 0)
		return -EIO;

	rc = i82860_probe1(pdev, ent->driver_data);

	if (rc == 0)
		mci_pdev = pci_dev_get(pdev);

	return rc;
}

static void __devexit i82860_remove_one(struct pci_dev *pdev)
{
	struct mem_ctl_info *mci;

	debugf0("%s()\n", __func__);

	if (i82860_pci)
		edac_pci_release_generic_ctl(i82860_pci);

	if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL)
		return;

	edac_mc_free(mci);
}

static DEFINE_PCI_DEVICE_TABLE(i82860_pci_tbl) = {
	{
	 PCI_VEND_DEV(INTEL, 82860_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
	 I82860},
	{
	 0,
	 }			/* 0 terminated list. */
};

MODULE_DEVICE_TABLE(pci, i82860_pci_tbl);

static struct pci_driver i82860_driver = {
	.name = EDAC_MOD_STR,
	.probe = i82860_init_one,
	.remove = __devexit_p(i82860_remove_one),
	.id_table = i82860_pci_tbl,
};

static int __init i82860_init(void)
{
	int pci_rc;

	debugf3("%s()\n", __func__);

       /* Ensure that the OPSTATE is set correctly for POLL or NMI */
       opstate_init();

	if ((pci_rc = pci_register_driver(&i82860_driver)) < 0)
		goto fail0;

	if (!mci_pdev) {
		mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
					PCI_DEVICE_ID_INTEL_82860_0, NULL);

		if (mci_pdev == NULL) {
			debugf0("860 pci_get_device fail\n");
			pci_rc = -ENODEV;
			goto fail1;
		}

		pci_rc = i82860_init_one(mci_pdev, i82860_pci_tbl);

		if (pci_rc < 0) {
			debugf0("860 init fail\n");
			pci_rc = -ENODEV;
			goto fail1;
		}
	}

	return 0;

fail1:
	pci_unregister_driver(&i82860_driver);

fail0:
	if (mci_pdev != NULL)
		pci_dev_put(mci_pdev);

	return pci_rc;
}

static void __exit i82860_exit(void)
{
	debugf3("%s()\n", __func__);

	pci_unregister_driver(&i82860_driver);

	if (mci_pdev != NULL)
		pci_dev_put(mci_pdev);
}

module_init(i82860_init);
module_exit(i82860_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com) "
		"Ben Woodard <[email protected]>");
MODULE_DESCRIPTION("ECC support for Intel 82860 memory hub controllers");

module_param(edac_op_state, int, 0444);
MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");
Commit	Line	Data
0d88a10e AC	1	/*
	2	* Intel 82860 Memory Controller kernel module
	3	* (C) 2005 Red Hat (http://www.redhat.com)
	4	* This file may be distributed under the terms of the
	5	* GNU General Public License.
	6	*
	7	* Written by Ben Woodard <[email protected]>
	8	* shamelessly copied from and based upon the edac_i82875 driver
	9	* by Thayne Harbaugh of Linux Networx. (http://lnxi.com)
	10	*/
	11
0d88a10e AC	12	#include <linux/module.h>
	13	#include <linux/init.h>
	14	#include <linux/pci.h>
	15	#include <linux/pci_ids.h>
c3c52bce	16	#include <linux/edac.h>
20bcb7a8	17	#include "edac_core.h"
0d88a10e	18
152ba394	19	#define I82860_REVISION " Ver: 2.0.2"
929a40ec	20	#define EDAC_MOD_STR "i82860_edac"
37f04581	21
537fba28	22	#define i82860_printk(level, fmt, arg...) \
e7ecd891	23	edac_printk(level, "i82860", fmt, ##arg)
537fba28 DP	24
537fba28 DP	25	#define i82860_mc_printk(mci, level, fmt, arg...) \
e7ecd891	26	edac_mc_chipset_printk(mci, level, "i82860", fmt, ##arg)
537fba28	27
0d88a10e AC	28	#ifndef PCI_DEVICE_ID_INTEL_82860_0
	29	#define PCI_DEVICE_ID_INTEL_82860_0 0x2531
	30	#endif /* PCI_DEVICE_ID_INTEL_82860_0 */
	31
	32	#define I82860_MCHCFG 0x50
	33	#define I82860_GBA 0x60
	34	#define I82860_GBA_MASK 0x7FF
	35	#define I82860_GBA_SHIFT 24
	36	#define I82860_ERRSTS 0xC8
	37	#define I82860_EAP 0xE4
	38	#define I82860_DERRCTL_STS 0xE2
	39
	40	enum i82860_chips {
	41	I82860 = 0,
	42	};
	43
	44	struct i82860_dev_info {
	45	const char *ctl_name;
	46	};
	47
	48	struct i82860_error_info {
	49	u16 errsts;
	50	u32 eap;
	51	u16 derrsyn;
	52	u16 errsts2;
	53	};
	54
	55	static const struct i82860_dev_info i82860_devs[] = {
	56	[I82860] = {
052dfb45	57	.ctl_name = "i82860"},
0d88a10e AC	58	};
0d88a10e AC	59
f044091c	60	static struct pci_dev mci_pdev; / init dev: in case that AGP code
e7ecd891 DP	61	* has already registered driver
e7ecd891 DP	62	*/
456a2f95	63	static struct edac_pci_ctl_info *i82860_pci;
0d88a10e	64
e7ecd891	65	static void i82860_get_error_info(struct mem_ctl_info *mci,
052dfb45	66	struct i82860_error_info *info)
0d88a10e	67	{
37f04581 DT	68	struct pci_dev *pdev;
37f04581 DT	69
fd687502	70	pdev = to_pci_dev(mci->pdev);
37f04581	71
0d88a10e AC	72	/*
	73	* This is a mess because there is no atomic way to read all the
	74	* registers at once and the registers can transition from CE being
	75	* overwritten by UE.
	76	*/
37f04581 DT	77	pci_read_config_word(pdev, I82860_ERRSTS, &info->errsts);
	78	pci_read_config_dword(pdev, I82860_EAP, &info->eap);
	79	pci_read_config_word(pdev, I82860_DERRCTL_STS, &info->derrsyn);
	80	pci_read_config_word(pdev, I82860_ERRSTS, &info->errsts2);
0d88a10e	81
37f04581	82	pci_write_bits16(pdev, I82860_ERRSTS, 0x0003, 0x0003);
0d88a10e AC	83
	84	/*
	85	* If the error is the same for both reads then the first set of reads
	86	* is valid. If there is a change then there is a CE no info and the
	87	* second set of reads is valid and should be UE info.
	88	*/
	89	if (!(info->errsts2 & 0x0003))
	90	return;
e7ecd891	91
0d88a10e	92	if ((info->errsts ^ info->errsts2) & 0x0003) {
37f04581	93	pci_read_config_dword(pdev, I82860_EAP, &info->eap);
b4e8b372	94	pci_read_config_word(pdev, I82860_DERRCTL_STS, &info->derrsyn);
0d88a10e AC	95	}
	96	}
	97
e7ecd891	98	static int i82860_process_error_info(struct mem_ctl_info *mci,
052dfb45 DT	99	struct i82860_error_info *info,
052dfb45 DT	100	int handle_errors)
0d88a10e	101	{
84c3a684	102	struct dimm_info *dimm;
0d88a10e AC	103	int row;
	104
	105	if (!(info->errsts2 & 0x0003))
	106	return 0;
	107
	108	if (!handle_errors)
	109	return 1;
	110
	111	if ((info->errsts ^ info->errsts2) & 0x0003) {
84c3a684 MCC	112	edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 0, 0, 0,
84c3a684 MCC	113	-1, -1, -1, "UE overwrote CE", "", NULL);
0d88a10e AC	114	info->errsts = info->errsts2;
	115	}
	116
	117	info->eap >>= PAGE_SHIFT;
	118	row = edac_mc_find_csrow_by_page(mci, info->eap);
84c3a684	119	dimm = mci->csrows[row].channels[0].dimm;
0d88a10e AC	120
0d88a10e AC	121	if (info->errsts & 0x0002)
84c3a684 MCC	122	edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
	123	info->eap, 0, 0,
	124	dimm->location[0], dimm->location[1], -1,
	125	"i82860 UE", "", NULL);
0d88a10e	126	else
84c3a684 MCC	127	edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
	128	info->eap, 0, info->derrsyn,
	129	dimm->location[0], dimm->location[1], -1,
	130	"i82860 CE", "", NULL);
0d88a10e AC	131
	132	return 1;
	133	}
	134
	135	static void i82860_check(struct mem_ctl_info *mci)
	136	{
	137	struct i82860_error_info info;
	138
537fba28	139	debugf1("MC%d: %s()\n", mci->mc_idx, __func__);
0d88a10e AC	140	i82860_get_error_info(mci, &info);
	141	i82860_process_error_info(mci, &info, 1);
	142	}
	143
13189525	144	static void i82860_init_csrows(struct mem_ctl_info mci, struct pci_dev pdev)
0d88a10e	145	{
0d88a10e	146	unsigned long last_cumul_size;
b4e8b372	147	u16 mchcfg_ddim; /* DRAM Data Integrity Mode 0=none, 2=edac */
13189525 DT	148	u16 value;
	149	u32 cumul_size;
	150	struct csrow_info *csrow;
084a4fcc	151	struct dimm_info *dimm;
13189525 DT	152	int index;
	153
	154	pci_read_config_word(pdev, I82860_MCHCFG, &mchcfg_ddim);
	155	mchcfg_ddim = mchcfg_ddim & 0x180;
	156	last_cumul_size = 0;
	157
	158	/* The group row boundary (GRA) reg values are boundary address
	159	* for each DRAM row with a granularity of 16MB. GRA regs are
	160	* cumulative; therefore GRA15 will contain the total memory contained
	161	* in all eight rows.
	162	*/
	163	for (index = 0; index < mci->nr_csrows; index++) {
	164	csrow = &mci->csrows[index];
084a4fcc MCC	165	dimm = csrow->channels[0].dimm;
084a4fcc MCC	166
13189525 DT	167	pci_read_config_word(pdev, I82860_GBA + index * 2, &value);
13189525 DT	168	cumul_size = (value & I82860_GBA_MASK) <<
052dfb45	169	(I82860_GBA_SHIFT - PAGE_SHIFT);
13189525 DT	170	debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
13189525 DT	171	cumul_size);
0d88a10e	172
13189525 DT	173	if (cumul_size == last_cumul_size)
	174	continue; /* not populated */
	175
	176	csrow->first_page = last_cumul_size;
	177	csrow->last_page = cumul_size - 1;
a895bf8b	178	dimm->nr_pages = cumul_size - last_cumul_size;
13189525	179	last_cumul_size = cumul_size;
084a4fcc MCC	180	dimm->grain = 1 << 12; /* I82860_EAP has 4KiB reolution */
	181	dimm->mtype = MEM_RMBS;
	182	dimm->dtype = DEV_UNKNOWN;
	183	dimm->edac_mode = mchcfg_ddim ? EDAC_SECDED : EDAC_NONE;
13189525 DT	184	}
	185	}
	186
	187	static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
	188	{
	189	struct mem_ctl_info *mci;
84c3a684	190	struct edac_mc_layer layers[2];
13189525	191	struct i82860_error_info discard;
0d88a10e	192
84c3a684 MCC	193	/*
	194	* RDRAM has channels but these don't map onto the csrow abstraction.
	195	* According with the datasheet, there are 2 Rambus channels, supporting
	196	* up to 16 direct RDRAM devices.
	197	* The device groups from the GRA registers seem to map reasonably
	198	* well onto the notion of a chip select row.
	199	* There are 16 GRA registers and since the name is associated with
	200	* the channel and the GRA registers map to physical devices so we are
	201	* going to make 1 channel for group.
0d88a10e	202	*/
84c3a684 MCC	203	layers[0].type = EDAC_MC_LAYER_CHANNEL;
	204	layers[0].size = 2;
	205	layers[0].is_virt_csrow = true;
	206	layers[1].type = EDAC_MC_LAYER_SLOT;
	207	layers[1].size = 8;
	208	layers[1].is_virt_csrow = true;
ca0907b9	209	mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, 0);
0d88a10e AC	210	if (!mci)
	211	return -ENOMEM;
	212
537fba28	213	debugf3("%s(): init mci\n", __func__);
fd687502	214	mci->pdev = &pdev->dev;
0d88a10e	215	mci->mtype_cap = MEM_FLAG_DDR;
0d88a10e AC	216	mci->edac_ctl_cap = EDAC_FLAG_NONE \| EDAC_FLAG_SECDED;
	217	/* I"m not sure about this but I think that all RDRAM is SECDED */
	218	mci->edac_cap = EDAC_FLAG_SECDED;
680cbbbb	219	mci->mod_name = EDAC_MOD_STR;
37f04581	220	mci->mod_ver = I82860_REVISION;
0d88a10e	221	mci->ctl_name = i82860_devs[dev_idx].ctl_name;
c4192705	222	mci->dev_name = pci_name(pdev);
0d88a10e AC	223	mci->edac_check = i82860_check;
0d88a10e AC	224	mci->ctl_page_to_phys = NULL;
13189525	225	i82860_init_csrows(mci, pdev);
b4e8b372	226	i82860_get_error_info(mci, &discard); /* clear counters */
0d88a10e	227
2d7bbb91 DT	228	/* Here we assume that we will never see multiple instances of this
	229	* type of memory controller. The ID is therefore hardcoded to 0.
	230	*/
b8f6f975	231	if (edac_mc_add_mc(mci)) {
537fba28	232	debugf3("%s(): failed edac_mc_add_mc()\n", __func__);
13189525	233	goto fail;
0d88a10e	234	}
e7ecd891	235
456a2f95 DJ	236	/* allocating generic PCI control info */
	237	i82860_pci = edac_pci_create_generic_ctl(&pdev->dev, EDAC_MOD_STR);
	238	if (!i82860_pci) {
	239	printk(KERN_WARNING
	240	"%s(): Unable to create PCI control\n",
	241	__func__);
	242	printk(KERN_WARNING
	243	"%s(): PCI error report via EDAC not setup\n",
	244	__func__);
	245	}
	246
13189525 DT	247	/* get this far and it's successful */
	248	debugf3("%s(): success\n", __func__);
	249
	250	return 0;
	251
052dfb45	252	fail:
13189525 DT	253	edac_mc_free(mci);
13189525 DT	254	return -ENODEV;
0d88a10e AC	255	}
	256
	257	/* returns count (>= 0), or negative on error */
	258	static int __devinit i82860_init_one(struct pci_dev *pdev,
052dfb45	259	const struct pci_device_id *ent)
0d88a10e AC	260	{
	261	int rc;
	262
537fba28	263	debugf0("%s()\n", __func__);
537fba28	264	i82860_printk(KERN_INFO, "i82860 init one\n");
e7ecd891 DP	265
e7ecd891 DP	266	if (pci_enable_device(pdev) < 0)
0d88a10e	267	return -EIO;
e7ecd891	268
0d88a10e	269	rc = i82860_probe1(pdev, ent->driver_data);
e7ecd891 DP	270
e7ecd891 DP	271	if (rc == 0)
0d88a10e	272	mci_pdev = pci_dev_get(pdev);
e7ecd891	273
0d88a10e AC	274	return rc;
	275	}
	276
	277	static void __devexit i82860_remove_one(struct pci_dev *pdev)
	278	{
	279	struct mem_ctl_info *mci;
	280
537fba28	281	debugf0("%s()\n", __func__);
0d88a10e	282
456a2f95 DJ	283	if (i82860_pci)
	284	edac_pci_release_generic_ctl(i82860_pci);
	285
37f04581	286	if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL)
18dbc337 DP	287	return;
	288
	289	edac_mc_free(mci);
0d88a10e AC	290	}
0d88a10e AC	291
36c46f31	292	static DEFINE_PCI_DEVICE_TABLE(i82860_pci_tbl) = {
e7ecd891	293	{
b4e8b372 DJ	294	PCI_VEND_DEV(INTEL, 82860_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
b4e8b372 DJ	295	I82860},
e7ecd891	296	{
b4e8b372 DJ	297	0,
b4e8b372 DJ	298	} /* 0 terminated list. */
0d88a10e AC	299	};
	300
	301	MODULE_DEVICE_TABLE(pci, i82860_pci_tbl);
	302
	303	static struct pci_driver i82860_driver = {
680cbbbb	304	.name = EDAC_MOD_STR,
0d88a10e AC	305	.probe = i82860_init_one,
	306	.remove = __devexit_p(i82860_remove_one),
	307	.id_table = i82860_pci_tbl,
	308	};
	309
da9bb1d2	310	static int __init i82860_init(void)
0d88a10e AC	311	{
	312	int pci_rc;
	313
537fba28	314	debugf3("%s()\n", __func__);
e7ecd891	315
c3c52bce HM	316	/* Ensure that the OPSTATE is set correctly for POLL or NMI */
	317	opstate_init();
	318
0d88a10e	319	if ((pci_rc = pci_register_driver(&i82860_driver)) < 0)
e8a491b4	320	goto fail0;
0d88a10e AC	321
0d88a10e AC	322	if (!mci_pdev) {
0d88a10e	323	mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
052dfb45	324	PCI_DEVICE_ID_INTEL_82860_0, NULL);
e7ecd891	325
0d88a10e AC	326	if (mci_pdev == NULL) {
0d88a10e AC	327	debugf0("860 pci_get_device fail\n");
e8a491b4 DP	328	pci_rc = -ENODEV;
e8a491b4 DP	329	goto fail1;
0d88a10e	330	}
e7ecd891	331
0d88a10e	332	pci_rc = i82860_init_one(mci_pdev, i82860_pci_tbl);
e7ecd891	333
0d88a10e AC	334	if (pci_rc < 0) {
0d88a10e AC	335	debugf0("860 init fail\n");
e8a491b4 DP	336	pci_rc = -ENODEV;
e8a491b4 DP	337	goto fail1;
0d88a10e AC	338	}
0d88a10e AC	339	}
e7ecd891	340
0d88a10e	341	return 0;
e8a491b4	342
052dfb45	343	fail1:
e8a491b4 DP	344	pci_unregister_driver(&i82860_driver);
e8a491b4 DP	345
052dfb45	346	fail0:
e8a491b4 DP	347	if (mci_pdev != NULL)
	348	pci_dev_put(mci_pdev);
	349
	350	return pci_rc;
0d88a10e AC	351	}
	352
	353	static void __exit i82860_exit(void)
	354	{
537fba28	355	debugf3("%s()\n", __func__);
0d88a10e AC	356
0d88a10e AC	357	pci_unregister_driver(&i82860_driver);
e8a491b4 DP	358
e8a491b4 DP	359	if (mci_pdev != NULL)
0d88a10e	360	pci_dev_put(mci_pdev);
0d88a10e AC	361	}
	362
	363	module_init(i82860_init);
	364	module_exit(i82860_exit);
	365
	366	MODULE_LICENSE("GPL");
e7ecd891	367	MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com) "
052dfb45	368	"Ben Woodard <[email protected]>");
0d88a10e	369	MODULE_DESCRIPTION("ECC support for Intel 82860 memory hub controllers");
c3c52bce HM	370
	371	module_param(edac_op_state, int, 0444);
	372	MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");