[linux-2.6-block.git] / drivers / edac / cell_edac.c

/*
 * Cell MIC driver for ECC counting
 *
 * Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
 *                <benh@kernel.crashing.org>
 *
 * This file may be distributed under the terms of the
 * GNU General Public License.
 */
#undef DEBUG

#include <linux/edac.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/stop_machine.h>
#include <linux/io.h>
#include <linux/of_address.h>
#include <asm/machdep.h>
#include <asm/cell-regs.h>

#include "edac_core.h"

struct cell_edac_priv
{
	struct cbe_mic_tm_regs __iomem	*regs;
	int				node;
	int				chanmask;
#ifdef DEBUG
	u64				prev_fir;
#endif
};

static void cell_edac_count_ce(struct mem_ctl_info *mci, int chan, u64 ar)
{
	struct cell_edac_priv		*priv = mci->pvt_info;
	struct csrow_info		*csrow = mci->csrows[0];
	unsigned long			address, pfn, offset, syndrome;

	dev_dbg(mci->pdev, "ECC CE err on node %d, channel %d, ar = 0x%016llx\n",
		priv->node, chan, ar);

	/* Address decoding is likely a bit bogus, to dbl check */
	address = (ar & 0xffffffffe0000000ul) >> 29;
	if (priv->chanmask == 0x3)
		address = (address << 1) | chan;
	pfn = address >> PAGE_SHIFT;
	offset = address & ~PAGE_MASK;
	syndrome = (ar & 0x000000001fe00000ul) >> 21;

	/* TODO: Decoding of the error address */
	edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
			     csrow->first_page + pfn, offset, syndrome,
			     0, chan, -1, "", "");
}

static void cell_edac_count_ue(struct mem_ctl_info *mci, int chan, u64 ar)
{
	struct cell_edac_priv		*priv = mci->pvt_info;
	struct csrow_info		*csrow = mci->csrows[0];
	unsigned long			address, pfn, offset;

	dev_dbg(mci->pdev, "ECC UE err on node %d, channel %d, ar = 0x%016llx\n",
		priv->node, chan, ar);

	/* Address decoding is likely a bit bogus, to dbl check */
	address = (ar & 0xffffffffe0000000ul) >> 29;
	if (priv->chanmask == 0x3)
		address = (address << 1) | chan;
	pfn = address >> PAGE_SHIFT;
	offset = address & ~PAGE_MASK;

	/* TODO: Decoding of the error address */
	edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
			     csrow->first_page + pfn, offset, 0,
			     0, chan, -1, "", "");
}

static void cell_edac_check(struct mem_ctl_info *mci)
{
	struct cell_edac_priv		*priv = mci->pvt_info;
	u64				fir, addreg, clear = 0;

	fir = in_be64(&priv->regs->mic_fir);
#ifdef DEBUG
	if (fir != priv->prev_fir) {
		dev_dbg(mci->pdev, "fir change : 0x%016lx\n", fir);
		priv->prev_fir = fir;
	}
#endif
	if ((priv->chanmask & 0x1) && (fir & CBE_MIC_FIR_ECC_SINGLE_0_ERR)) {
		addreg = in_be64(&priv->regs->mic_df_ecc_address_0);
		clear |= CBE_MIC_FIR_ECC_SINGLE_0_RESET;
		cell_edac_count_ce(mci, 0, addreg);
	}
	if ((priv->chanmask & 0x2) && (fir & CBE_MIC_FIR_ECC_SINGLE_1_ERR)) {
		addreg = in_be64(&priv->regs->mic_df_ecc_address_1);
		clear |= CBE_MIC_FIR_ECC_SINGLE_1_RESET;
		cell_edac_count_ce(mci, 1, addreg);
	}
	if ((priv->chanmask & 0x1) && (fir & CBE_MIC_FIR_ECC_MULTI_0_ERR)) {
		addreg = in_be64(&priv->regs->mic_df_ecc_address_0);
		clear |= CBE_MIC_FIR_ECC_MULTI_0_RESET;
		cell_edac_count_ue(mci, 0, addreg);
	}
	if ((priv->chanmask & 0x2) && (fir & CBE_MIC_FIR_ECC_MULTI_1_ERR)) {
		addreg = in_be64(&priv->regs->mic_df_ecc_address_1);
		clear |= CBE_MIC_FIR_ECC_MULTI_1_RESET;
		cell_edac_count_ue(mci, 1, addreg);
	}

	/* The procedure for clearing FIR bits is a bit ... weird */
	if (clear) {
		fir &= ~(CBE_MIC_FIR_ECC_ERR_MASK | CBE_MIC_FIR_ECC_SET_MASK);
		fir |= CBE_MIC_FIR_ECC_RESET_MASK;
		fir &= ~clear;
		out_be64(&priv->regs->mic_fir, fir);
		(void)in_be64(&priv->regs->mic_fir);

		mb();	/* sync up */
#ifdef DEBUG
		fir = in_be64(&priv->regs->mic_fir);
		dev_dbg(mci->pdev, "fir clear  : 0x%016lx\n", fir);
#endif
	}
}

static void cell_edac_init_csrows(struct mem_ctl_info *mci)
{
	struct csrow_info		*csrow = mci->csrows[0];
	struct dimm_info		*dimm;
	struct cell_edac_priv		*priv = mci->pvt_info;
	struct device_node		*np;
	int				j;
	u32				nr_pages;

	for_each_node_by_name(np, "memory") {
		struct resource r;

		/* We "know" that the Cell firmware only creates one entry
		 * in the "memory" nodes. If that changes, this code will
		 * need to be adapted.
		 */
		if (of_address_to_resource(np, 0, &r))
			continue;
		if (of_node_to_nid(np) != priv->node)
			continue;
		csrow->first_page = r.start >> PAGE_SHIFT;
		nr_pages = resource_size(&r) >> PAGE_SHIFT;
		csrow->last_page = csrow->first_page + nr_pages - 1;

		for (j = 0; j < csrow->nr_channels; j++) {
			dimm = csrow->channels[j]->dimm;
			dimm->mtype = MEM_XDR;
			dimm->edac_mode = EDAC_SECDED;
			dimm->nr_pages = nr_pages / csrow->nr_channels;
		}
		dev_dbg(mci->pdev,
			"Initialized on node %d, chanmask=0x%x,"
			" first_page=0x%lx, nr_pages=0x%x\n",
			priv->node, priv->chanmask,
			csrow->first_page, nr_pages);
		break;
	}
	of_node_put(np);
}

static int cell_edac_probe(struct platform_device *pdev)
{
	struct cbe_mic_tm_regs __iomem	*regs;
	struct mem_ctl_info		*mci;
	struct edac_mc_layer		layers[2];
	struct cell_edac_priv		*priv;
	u64				reg;
	int				rc, chanmask, num_chans;

	regs = cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(pdev->id));
	if (regs == NULL)
		return -ENODEV;

	edac_op_state = EDAC_OPSTATE_POLL;

	/* Get channel population */
	reg = in_be64(&regs->mic_mnt_cfg);
	dev_dbg(&pdev->dev, "MIC_MNT_CFG = 0x%016llx\n", reg);
	chanmask = 0;
	if (reg & CBE_MIC_MNT_CFG_CHAN_0_POP)
		chanmask |= 0x1;
	if (reg & CBE_MIC_MNT_CFG_CHAN_1_POP)
		chanmask |= 0x2;
	if (chanmask == 0) {
		dev_warn(&pdev->dev,
			 "Yuck ! No channel populated ? Aborting !\n");
		return -ENODEV;
	}
	dev_dbg(&pdev->dev, "Initial FIR = 0x%016llx\n",
		in_be64(&regs->mic_fir));

	/* Allocate & init EDAC MC data structure */
	num_chans = chanmask == 3 ? 2 : 1;

	layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
	layers[0].size = 1;
	layers[0].is_virt_csrow = true;
	layers[1].type = EDAC_MC_LAYER_CHANNEL;
	layers[1].size = num_chans;
	layers[1].is_virt_csrow = false;
	mci = edac_mc_alloc(pdev->id, ARRAY_SIZE(layers), layers,
			    sizeof(struct cell_edac_priv));
	if (mci == NULL)
		return -ENOMEM;
	priv = mci->pvt_info;
	priv->regs = regs;
	priv->node = pdev->id;
	priv->chanmask = chanmask;
	mci->pdev = &pdev->dev;
	mci->mtype_cap = MEM_FLAG_XDR;
	mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED;
	mci->edac_cap = EDAC_FLAG_EC | EDAC_FLAG_SECDED;
	mci->mod_name = "cell_edac";
	mci->ctl_name = "MIC";
	mci->dev_name = dev_name(&pdev->dev);
	mci->edac_check = cell_edac_check;
	cell_edac_init_csrows(mci);

	/* Register with EDAC core */
	rc = edac_mc_add_mc(mci);
	if (rc) {
		dev_err(&pdev->dev, "failed to register with EDAC core\n");
		edac_mc_free(mci);
		return rc;
	}

	return 0;
}

static int cell_edac_remove(struct platform_device *pdev)
{
	struct mem_ctl_info *mci = edac_mc_del_mc(&pdev->dev);
	if (mci)
		edac_mc_free(mci);
	return 0;
}

static struct platform_driver cell_edac_driver = {
	.driver		= {
		.name	= "cbe-mic",
	},
	.probe		= cell_edac_probe,
	.remove		= cell_edac_remove,
};

static int __init cell_edac_init(void)
{
	/* Sanity check registers data structure */
	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
			      mic_df_ecc_address_0) != 0xf8);
	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
			      mic_df_ecc_address_1) != 0x1b8);
	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
			      mic_df_config) != 0x218);
	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
			      mic_fir) != 0x230);
	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
			      mic_mnt_cfg) != 0x210);
	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
			      mic_exc) != 0x208);

	return platform_driver_register(&cell_edac_driver);
}

static void __exit cell_edac_exit(void)
{
	platform_driver_unregister(&cell_edac_driver);
}

module_init(cell_edac_init);
module_exit(cell_edac_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
MODULE_DESCRIPTION("ECC counting for Cell MIC");
Commit	Line	Data
48764e41 BH	1	/*
	2	* Cell MIC driver for ECC counting
	3	*
	4	* Copyright 2007 Benjamin Herrenschmidt, IBM Corp.
	5	* <benh@kernel.crashing.org>
	6	*
	7	* This file may be distributed under the terms of the
	8	* GNU General Public License.
	9	*/
	10	#undef DEBUG
	11
992b692d	12	#include <linux/edac.h>
48764e41 BH	13	#include <linux/module.h>
	14	#include <linux/init.h>
	15	#include <linux/platform_device.h>
	16	#include <linux/stop_machine.h>
	17	#include <linux/io.h>
5af50730	18	#include <linux/of_address.h>
48764e41 BH	19	#include <asm/machdep.h>
	20	#include <asm/cell-regs.h>
	21
	22	#include "edac_core.h"
	23
	24	struct cell_edac_priv
	25	{
	26	struct cbe_mic_tm_regs __iomem *regs;
	27	int node;
	28	int chanmask;
	29	#ifdef DEBUG
	30	u64 prev_fir;
	31	#endif
	32	};
	33
	34	static void cell_edac_count_ce(struct mem_ctl_info *mci, int chan, u64 ar)
	35	{
	36	struct cell_edac_priv *priv = mci->pvt_info;
de3910eb	37	struct csrow_info *csrow = mci->csrows[0];
c134fd86	38	unsigned long address, pfn, offset, syndrome;
48764e41	39
fd687502	40	dev_dbg(mci->pdev, "ECC CE err on node %d, channel %d, ar = 0x%016llx\n",
48764e41 BH	41	priv->node, chan, ar);
	42
	43	/* Address decoding is likely a bit bogus, to dbl check */
	44	address = (ar & 0xffffffffe0000000ul) >> 29;
	45	if (priv->chanmask == 0x3)
	46	address = (address << 1) \| chan;
	47	pfn = address >> PAGE_SHIFT;
	48	offset = address & ~PAGE_MASK;
c134fd86	49	syndrome = (ar & 0x000000001fe00000ul) >> 21;
48764e41	50
b595076a	51	/* TODO: Decoding of the error address */
9eb07a7f	52	edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
6458fc08	53	csrow->first_page + pfn, offset, syndrome,
03f7eae8	54	0, chan, -1, "", "");
48764e41 BH	55	}
	56
	57	static void cell_edac_count_ue(struct mem_ctl_info *mci, int chan, u64 ar)
	58	{
	59	struct cell_edac_priv *priv = mci->pvt_info;
de3910eb	60	struct csrow_info *csrow = mci->csrows[0];
48764e41 BH	61	unsigned long address, pfn, offset;
48764e41 BH	62
fd687502	63	dev_dbg(mci->pdev, "ECC UE err on node %d, channel %d, ar = 0x%016llx\n",
48764e41 BH	64	priv->node, chan, ar);
	65
	66	/* Address decoding is likely a bit bogus, to dbl check */
	67	address = (ar & 0xffffffffe0000000ul) >> 29;
	68	if (priv->chanmask == 0x3)
	69	address = (address << 1) \| chan;
	70	pfn = address >> PAGE_SHIFT;
	71	offset = address & ~PAGE_MASK;
	72
b595076a	73	/* TODO: Decoding of the error address */
9eb07a7f	74	edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
6458fc08	75	csrow->first_page + pfn, offset, 0,
03f7eae8	76	0, chan, -1, "", "");
48764e41 BH	77	}
	78
	79	static void cell_edac_check(struct mem_ctl_info *mci)
	80	{
	81	struct cell_edac_priv *priv = mci->pvt_info;
	82	u64 fir, addreg, clear = 0;
	83
	84	fir = in_be64(&priv->regs->mic_fir);
	85	#ifdef DEBUG
	86	if (fir != priv->prev_fir) {
fd687502	87	dev_dbg(mci->pdev, "fir change : 0x%016lx\n", fir);
48764e41 BH	88	priv->prev_fir = fir;
	89	}
	90	#endif
	91	if ((priv->chanmask & 0x1) && (fir & CBE_MIC_FIR_ECC_SINGLE_0_ERR)) {
	92	addreg = in_be64(&priv->regs->mic_df_ecc_address_0);
	93	clear \|= CBE_MIC_FIR_ECC_SINGLE_0_RESET;
	94	cell_edac_count_ce(mci, 0, addreg);
	95	}
	96	if ((priv->chanmask & 0x2) && (fir & CBE_MIC_FIR_ECC_SINGLE_1_ERR)) {
	97	addreg = in_be64(&priv->regs->mic_df_ecc_address_1);
	98	clear \|= CBE_MIC_FIR_ECC_SINGLE_1_RESET;
	99	cell_edac_count_ce(mci, 1, addreg);
	100	}
	101	if ((priv->chanmask & 0x1) && (fir & CBE_MIC_FIR_ECC_MULTI_0_ERR)) {
	102	addreg = in_be64(&priv->regs->mic_df_ecc_address_0);
	103	clear \|= CBE_MIC_FIR_ECC_MULTI_0_RESET;
	104	cell_edac_count_ue(mci, 0, addreg);
	105	}
	106	if ((priv->chanmask & 0x2) && (fir & CBE_MIC_FIR_ECC_MULTI_1_ERR)) {
	107	addreg = in_be64(&priv->regs->mic_df_ecc_address_1);
	108	clear \|= CBE_MIC_FIR_ECC_MULTI_1_RESET;
	109	cell_edac_count_ue(mci, 1, addreg);
	110	}
	111
	112	/* The procedure for clearing FIR bits is a bit ... weird */
	113	if (clear) {
	114	fir &= ~(CBE_MIC_FIR_ECC_ERR_MASK \| CBE_MIC_FIR_ECC_SET_MASK);
	115	fir \|= CBE_MIC_FIR_ECC_RESET_MASK;
	116	fir &= ~clear;
	117	out_be64(&priv->regs->mic_fir, fir);
	118	(void)in_be64(&priv->regs->mic_fir);
	119
	120	mb(); /* sync up */
	121	#ifdef DEBUG
	122	fir = in_be64(&priv->regs->mic_fir);
fd687502	123	dev_dbg(mci->pdev, "fir clear : 0x%016lx\n", fir);
48764e41 BH	124	#endif
	125	}
	126	}
	127
9b3c6e85	128	static void cell_edac_init_csrows(struct mem_ctl_info *mci)
48764e41	129	{
de3910eb	130	struct csrow_info *csrow = mci->csrows[0];
084a4fcc	131	struct dimm_info *dimm;
48764e41 BH	132	struct cell_edac_priv *priv = mci->pvt_info;
48764e41 BH	133	struct device_node *np;
084a4fcc	134	int j;
a895bf8b	135	u32 nr_pages;
48764e41	136
ccdb8ed3	137	for_each_node_by_name(np, "memory") {
48764e41 BH	138	struct resource r;
	139
	140	/* We "know" that the Cell firmware only creates one entry
	141	* in the "memory" nodes. If that changes, this code will
	142	* need to be adapted.
	143	*/
	144	if (of_address_to_resource(np, 0, &r))
	145	continue;
	146	if (of_node_to_nid(np) != priv->node)
	147	continue;
	148	csrow->first_page = r.start >> PAGE_SHIFT;
a895bf8b MCC	149	nr_pages = resource_size(&r) >> PAGE_SHIFT;
a895bf8b MCC	150	csrow->last_page = csrow->first_page + nr_pages - 1;
084a4fcc MCC	151
084a4fcc MCC	152	for (j = 0; j < csrow->nr_channels; j++) {
de3910eb	153	dimm = csrow->channels[j]->dimm;
084a4fcc MCC	154	dimm->mtype = MEM_XDR;
084a4fcc MCC	155	dimm->edac_mode = EDAC_SECDED;
a895bf8b	156	dimm->nr_pages = nr_pages / csrow->nr_channels;
084a4fcc	157	}
fd687502	158	dev_dbg(mci->pdev,
48764e41 BH	159	"Initialized on node %d, chanmask=0x%x,"
	160	" first_page=0x%lx, nr_pages=0x%x\n",
	161	priv->node, priv->chanmask,
6458fc08	162	csrow->first_page, nr_pages);
48764e41 BH	163	break;
48764e41 BH	164	}
3e455888	165	of_node_put(np);
48764e41 BH	166	}
48764e41 BH	167
9b3c6e85	168	static int cell_edac_probe(struct platform_device *pdev)
48764e41 BH	169	{
	170	struct cbe_mic_tm_regs __iomem *regs;
	171	struct mem_ctl_info *mci;
6458fc08	172	struct edac_mc_layer layers[2];
48764e41 BH	173	struct cell_edac_priv *priv;
48764e41 BH	174	u64 reg;
6458fc08	175	int rc, chanmask, num_chans;
48764e41 BH	176
	177	regs = cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(pdev->id));
	178	if (regs == NULL)
	179	return -ENODEV;
	180
992b692d BH	181	edac_op_state = EDAC_OPSTATE_POLL;
992b692d BH	182
48764e41 BH	183	/* Get channel population */
48764e41 BH	184	reg = in_be64(&regs->mic_mnt_cfg);
4712fff9	185	dev_dbg(&pdev->dev, "MIC_MNT_CFG = 0x%016llx\n", reg);
48764e41 BH	186	chanmask = 0;
	187	if (reg & CBE_MIC_MNT_CFG_CHAN_0_POP)
	188	chanmask \|= 0x1;
	189	if (reg & CBE_MIC_MNT_CFG_CHAN_1_POP)
	190	chanmask \|= 0x2;
	191	if (chanmask == 0) {
	192	dev_warn(&pdev->dev,
	193	"Yuck ! No channel populated ? Aborting !\n");
	194	return -ENODEV;
	195	}
4712fff9	196	dev_dbg(&pdev->dev, "Initial FIR = 0x%016llx\n",
48764e41 BH	197	in_be64(&regs->mic_fir));
	198
	199	/* Allocate & init EDAC MC data structure */
6458fc08 MCC	200	num_chans = chanmask == 3 ? 2 : 1;
	201
	202	layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
	203	layers[0].size = 1;
	204	layers[0].is_virt_csrow = true;
	205	layers[1].type = EDAC_MC_LAYER_CHANNEL;
	206	layers[1].size = num_chans;
	207	layers[1].is_virt_csrow = false;
ca0907b9	208	mci = edac_mc_alloc(pdev->id, ARRAY_SIZE(layers), layers,
6458fc08	209	sizeof(struct cell_edac_priv));
48764e41 BH	210	if (mci == NULL)
	211	return -ENOMEM;
	212	priv = mci->pvt_info;
	213	priv->regs = regs;
	214	priv->node = pdev->id;
	215	priv->chanmask = chanmask;
fd687502	216	mci->pdev = &pdev->dev;
48764e41 BH	217	mci->mtype_cap = MEM_FLAG_XDR;
	218	mci->edac_ctl_cap = EDAC_FLAG_NONE \| EDAC_FLAG_EC \| EDAC_FLAG_SECDED;
	219	mci->edac_cap = EDAC_FLAG_EC \| EDAC_FLAG_SECDED;
	220	mci->mod_name = "cell_edac";
	221	mci->ctl_name = "MIC";
031d5518	222	mci->dev_name = dev_name(&pdev->dev);
48764e41 BH	223	mci->edac_check = cell_edac_check;
	224	cell_edac_init_csrows(mci);
	225
	226	/* Register with EDAC core */
	227	rc = edac_mc_add_mc(mci);
	228	if (rc) {
	229	dev_err(&pdev->dev, "failed to register with EDAC core\n");
	230	edac_mc_free(mci);
	231	return rc;
	232	}
	233
	234	return 0;
	235	}
	236
9b3c6e85	237	static int cell_edac_remove(struct platform_device *pdev)
48764e41 BH	238	{
	239	struct mem_ctl_info *mci = edac_mc_del_mc(&pdev->dev);
	240	if (mci)
	241	edac_mc_free(mci);
	242	return 0;
	243	}
	244
	245	static struct platform_driver cell_edac_driver = {
	246	.driver = {
	247	.name = "cbe-mic",
48764e41 BH	248	},
48764e41 BH	249	.probe = cell_edac_probe,
9b3c6e85	250	.remove = cell_edac_remove,
48764e41 BH	251	};
	252
	253	static int __init cell_edac_init(void)
	254	{
	255	/* Sanity check registers data structure */
	256	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
	257	mic_df_ecc_address_0) != 0xf8);
	258	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
	259	mic_df_ecc_address_1) != 0x1b8);
	260	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
	261	mic_df_config) != 0x218);
	262	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
	263	mic_fir) != 0x230);
	264	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
	265	mic_mnt_cfg) != 0x210);
	266	BUILD_BUG_ON(offsetof(struct cbe_mic_tm_regs,
	267	mic_exc) != 0x208);
	268
	269	return platform_driver_register(&cell_edac_driver);
	270	}
	271
	272	static void __exit cell_edac_exit(void)
	273	{
	274	platform_driver_unregister(&cell_edac_driver);
	275	}
	276
	277	module_init(cell_edac_init);
	278	module_exit(cell_edac_exit);
	279
	280	MODULE_LICENSE("GPL");
	281	MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
	282	MODULE_DESCRIPTION("ECC counting for Cell MIC");