Commit 709d9f09 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'edac/v3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac 

Pull edac updates from Mauro Carvalho Chehab:
 - Broadwell-DE support on sb-edac driver
 - Some fixes at sb-edac driver

* tag 'edac/v3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
  sb_edac: Fix typo computing number of banks
  sb_edac: Add support for Broadwell-DE processor
  sb_edac: Fix discovery of top-of-low-memory for Haswell
  sb_edac: Fix erroneous bytes->gigabytes conversion
  sb_edac: Fix off-by-one error in number of channels
parents 2183a588 fec53af5

drivers/edac/edac_mc_sysfs.c

+1 −1
Original line number Diff line number Diff line
@@ -372,7 +372,7 @@ static int edac_create_csrow_object(struct mem_ctl_info *mci, 
{

	int err, chan;



	if (csrow->nr_channels >= EDAC_NR_CHANNELS)

	if (csrow->nr_channels > EDAC_NR_CHANNELS)

		return -ENODEV;



	csrow->dev.type = &csrow_attr_type;

drivers/edac/sb_edac.c

+181 −27
Original line number Diff line number Diff line
@@ -135,6 +135,7 @@ static inline int sad_pkg(const struct interleave_pkg *table, u32 reg, 


#define TOLM		0x80

#define	TOHM		0x84

#define HASWELL_TOLM	0xd0

#define HASWELL_TOHM_0	0xd4

#define HASWELL_TOHM_1	0xd8
@@ -261,6 +262,7 @@ enum type { 
	SANDY_BRIDGE,

	IVY_BRIDGE,

	HASWELL,

	BROADWELL,

};



struct sbridge_pvt;
@@ -445,7 +447,7 @@ static const struct pci_id_table pci_dev_descr_ibridge_table[] = { 
 *	- each SMI channel interfaces with a scalable memory buffer

 *	- each scalable memory buffer supports 4 DDR3/DDR4 channels, 3 DPC

 */

#define HASWELL_DDRCRCLKCONTROLS 0xa10

#define HASWELL_DDRCRCLKCONTROLS 0xa10 /* Ditto on Broadwell */

#define HASWELL_HASYSDEFEATURE2 0x84

#define PCI_DEVICE_ID_INTEL_HASWELL_IMC_VTD_MISC 0x2f28

#define PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0	0x2fa0
@@ -496,6 +498,46 @@ static const struct pci_id_table pci_dev_descr_haswell_table[] = { 
	{0,}			/* 0 terminated list. */

};



/*

 * Broadwell support

 *

 * DE processor:

 *	- 1 IMC

 *	- 2 DDR3 channels, 2 DPC per channel

 */

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_VTD_MISC 0x6f28

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0	0x6fa0

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TA	0x6fa8

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_THERMAL 0x6f71

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD0 0x6ffc

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD1 0x6ffd

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD0 0x6faa

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD1 0x6fab

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD2 0x6fac

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD3 0x6fad

#define PCI_DEVICE_ID_INTEL_BROADWELL_IMC_DDRIO0 0x6faf



static const struct pci_id_descr pci_dev_descr_broadwell[] = {

	/* first item must be the HA */

	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0, 0)		},



	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD0, 0)	},

	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD1, 0)	},



	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TA, 0)	},

	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_THERMAL, 0)	},

	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD0, 0)	},

	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD1, 0)	},

	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD2, 0)	},

	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD3, 0)	},

	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_BROADWELL_IMC_DDRIO0, 1)	},

};



static const struct pci_id_table pci_dev_descr_broadwell_table[] = {

	PCI_ID_TABLE_ENTRY(pci_dev_descr_broadwell),

	{0,}			/* 0 terminated list. */

};



/*

 *	pci_device_id	table for which devices we are looking for

 */
@@ -503,6 +545,7 @@ static const struct pci_device_id sbridge_pci_tbl[] = { 
	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_HA0)},

	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA)},

	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0)},

	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0)},

	{0,}			/* 0 terminated list. */

};
@@ -706,8 +749,8 @@ static u64 haswell_get_tolm(struct sbridge_pvt *pvt) 
{

	u32 reg;



	pci_read_config_dword(pvt->info.pci_vtd, TOLM, &reg);

	return (GET_BITFIELD(reg, 26, 31) << 26) | 0x1ffffff;

	pci_read_config_dword(pvt->info.pci_vtd, HASWELL_TOLM, &reg);

	return (GET_BITFIELD(reg, 26, 31) << 26) | 0x3ffffff;

}



static u64 haswell_get_tohm(struct sbridge_pvt *pvt)
@@ -767,12 +810,22 @@ static int check_if_ecc_is_active(const u8 bus, enum type type) 
	struct pci_dev *pdev = NULL;

	u32 mcmtr, id;



	if (type == IVY_BRIDGE)

	switch (type) {

	case IVY_BRIDGE:

		id = PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA;

	else if (type == HASWELL)

		break;

	case HASWELL:

		id = PCI_DEVICE_ID_INTEL_HASWELL_IMC_HA0_TA;

	else

		break;

	case SANDY_BRIDGE:

		id = PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA;

		break;

	case BROADWELL:

		id = PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TA;

		break;

	default:

		return -ENODEV;

	}



	pdev = get_pdev_same_bus(bus, id);

	if (!pdev) {
@@ -800,7 +853,7 @@ static int get_dimm_config(struct mem_ctl_info *mci) 
	enum edac_type mode;

	enum mem_type mtype;



	if (pvt->info.type == HASWELL)

	if (pvt->info.type == HASWELL || pvt->info.type == BROADWELL)

		pci_read_config_dword(pvt->pci_sad1, SAD_TARGET, &reg);

	else

		pci_read_config_dword(pvt->pci_br0, SAD_TARGET, &reg);
@@ -848,7 +901,7 @@ static int get_dimm_config(struct mem_ctl_info *mci) 
	else

		edac_dbg(0, "Memory is unregistered\n");



	if (mtype == MEM_DDR4 || MEM_RDDR4)

	if (mtype == MEM_DDR4 || mtype == MEM_RDDR4)

		banks = 16;

	else

		banks = 8;
@@ -909,7 +962,7 @@ static void get_memory_layout(const struct mem_ctl_info *mci) 
	u32 reg;

	u64 limit, prv = 0;

	u64 tmp_mb;

	u32 mb, kb;

	u32 gb, mb;

	u32 rir_way;



	/*
@@ -919,15 +972,17 @@ static void get_memory_layout(const struct mem_ctl_info *mci) 
	pvt->tolm = pvt->info.get_tolm(pvt);

	tmp_mb = (1 + pvt->tolm) >> 20;



	mb = div_u64_rem(tmp_mb, 1000, &kb);

	edac_dbg(0, "TOLM: %u.%03u GB (0x%016Lx)\n", mb, kb, (u64)pvt->tolm);

	gb = div_u64_rem(tmp_mb, 1024, &mb);

	edac_dbg(0, "TOLM: %u.%03u GB (0x%016Lx)\n",

		gb, (mb*1000)/1024, (u64)pvt->tolm);



	/* Address range is already 45:25 */

	pvt->tohm = pvt->info.get_tohm(pvt);

	tmp_mb = (1 + pvt->tohm) >> 20;



	mb = div_u64_rem(tmp_mb, 1000, &kb);

	edac_dbg(0, "TOHM: %u.%03u GB (0x%016Lx)\n", mb, kb, (u64)pvt->tohm);

	gb = div_u64_rem(tmp_mb, 1024, &mb);

	edac_dbg(0, "TOHM: %u.%03u GB (0x%016Lx)\n",

		gb, (mb*1000)/1024, (u64)pvt->tohm);



	/*

	 * Step 2) Get SAD range and SAD Interleave list
@@ -949,11 +1004,11 @@ static void get_memory_layout(const struct mem_ctl_info *mci) 
			break;



		tmp_mb = (limit + 1) >> 20;

		mb = div_u64_rem(tmp_mb, 1000, &kb);

		gb = div_u64_rem(tmp_mb, 1024, &mb);

		edac_dbg(0, "SAD#%d %s up to %u.%03u GB (0x%016Lx) Interleave: %s reg=0x%08x\n",

			 n_sads,

			 get_dram_attr(reg),

			 mb, kb,

			 gb, (mb*1000)/1024,

			 ((u64)tmp_mb) << 20L,

			 INTERLEAVE_MODE(reg) ? "8:6" : "[8:6]XOR[18:16]",

			 reg);
@@ -984,9 +1039,9 @@ static void get_memory_layout(const struct mem_ctl_info *mci) 
			break;

		tmp_mb = (limit + 1) >> 20;



		mb = div_u64_rem(tmp_mb, 1000, &kb);

		gb = div_u64_rem(tmp_mb, 1024, &mb);

		edac_dbg(0, "TAD#%d: up to %u.%03u GB (0x%016Lx), socket interleave %d, memory interleave %d, TGT: %d, %d, %d, %d, reg=0x%08x\n",

			 n_tads, mb, kb,

			 n_tads, gb, (mb*1000)/1024,

			 ((u64)tmp_mb) << 20L,

			 (u32)TAD_SOCK(reg),

			 (u32)TAD_CH(reg),
@@ -1009,10 +1064,10 @@ static void get_memory_layout(const struct mem_ctl_info *mci) 
					      tad_ch_nilv_offset[j],

					      &reg);

			tmp_mb = TAD_OFFSET(reg) >> 20;

			mb = div_u64_rem(tmp_mb, 1000, &kb);

			gb = div_u64_rem(tmp_mb, 1024, &mb);

			edac_dbg(0, "TAD CH#%d, offset #%d: %u.%03u GB (0x%016Lx), reg=0x%08x\n",

				 i, j,

				 mb, kb,

				 gb, (mb*1000)/1024,

				 ((u64)tmp_mb) << 20L,

				 reg);

		}
@@ -1034,10 +1089,10 @@ static void get_memory_layout(const struct mem_ctl_info *mci) 


			tmp_mb = pvt->info.rir_limit(reg) >> 20;

			rir_way = 1 << RIR_WAY(reg);

			mb = div_u64_rem(tmp_mb, 1000, &kb);

			gb = div_u64_rem(tmp_mb, 1024, &mb);

			edac_dbg(0, "CH#%d RIR#%d, limit: %u.%03u GB (0x%016Lx), way: %d, reg=0x%08x\n",

				 i, j,

				 mb, kb,

				 gb, (mb*1000)/1024,

				 ((u64)tmp_mb) << 20L,

				 rir_way,

				 reg);
@@ -1048,10 +1103,10 @@ static void get_memory_layout(const struct mem_ctl_info *mci) 
						      &reg);

				tmp_mb = RIR_OFFSET(reg) << 6;



				mb = div_u64_rem(tmp_mb, 1000, &kb);

				gb = div_u64_rem(tmp_mb, 1024, &mb);

				edac_dbg(0, "CH#%d RIR#%d INTL#%d, offset %u.%03u GB (0x%016Lx), tgt: %d, reg=0x%08x\n",

					 i, j, k,

					 mb, kb,

					 gb, (mb*1000)/1024,

					 ((u64)tmp_mb) << 20L,

					 (u32)RIR_RNK_TGT(reg),

					 reg);
@@ -1089,7 +1144,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci, 
	u8			ch_way, sck_way, pkg, sad_ha = 0;

	u32			tad_offset;

	u32			rir_way;

	u32			mb, kb;

	u32			mb, gb;

	u64			ch_addr, offset, limit = 0, prv = 0;
@@ -1179,7 +1234,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci, 
		*socket = sad_interleave[idx];

		edac_dbg(0, "SAD interleave index: %d (wayness %d) = CPU socket %d\n",

			 idx, sad_way, *socket);

	} else if (pvt->info.type == HASWELL) {

	} else if (pvt->info.type == HASWELL || pvt->info.type == BROADWELL) {

		int bits, a7mode = A7MODE(dram_rule);



		if (a7mode) {
@@ -1358,10 +1413,10 @@ static int get_memory_error_data(struct mem_ctl_info *mci, 
			continue;



		limit = pvt->info.rir_limit(reg);

		mb = div_u64_rem(limit >> 20, 1000, &kb);

		gb = div_u64_rem(limit >> 20, 1024, &mb);

		edac_dbg(0, "RIR#%d, limit: %u.%03u GB (0x%016Lx), way: %d\n",

			 n_rir,

			 mb, kb,

			 gb, (mb*1000)/1024,

			 limit,

			 1 << RIR_WAY(reg));

		if  (ch_addr <= limit)
@@ -1828,6 +1883,82 @@ enodev: 
	return -ENODEV;

}



static int broadwell_mci_bind_devs(struct mem_ctl_info *mci,

				 struct sbridge_dev *sbridge_dev)

{

	struct sbridge_pvt *pvt = mci->pvt_info;

	struct pci_dev *pdev;

	int i;



	/* there's only one device per system; not tied to any bus */

	if (pvt->info.pci_vtd == NULL)

		/* result will be checked later */

		pvt->info.pci_vtd = pci_get_device(PCI_VENDOR_ID_INTEL,

						   PCI_DEVICE_ID_INTEL_BROADWELL_IMC_VTD_MISC,

						   NULL);



	for (i = 0; i < sbridge_dev->n_devs; i++) {

		pdev = sbridge_dev->pdev[i];

		if (!pdev)

			continue;



		switch (pdev->device) {

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD0:

			pvt->pci_sad0 = pdev;

			break;

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_CBO_SAD1:

			pvt->pci_sad1 = pdev;

			break;

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0:

			pvt->pci_ha0 = pdev;

			break;

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TA:

			pvt->pci_ta = pdev;

			break;

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_THERMAL:

			pvt->pci_ras = pdev;

			break;

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD0:

			pvt->pci_tad[0] = pdev;

			break;

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD1:

			pvt->pci_tad[1] = pdev;

			break;

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD2:

			pvt->pci_tad[2] = pdev;

			break;

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0_TAD3:

			pvt->pci_tad[3] = pdev;

			break;

		case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_DDRIO0:

			pvt->pci_ddrio = pdev;

			break;

		default:

			break;

		}



		edac_dbg(0, "Associated PCI %02x.%02d.%d with dev = %p\n",

			 sbridge_dev->bus,

			 PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn),

			 pdev);

	}



	/* Check if everything were registered */

	if (!pvt->pci_sad0 || !pvt->pci_ha0 || !pvt->pci_sad1 ||

	    !pvt->pci_ras  || !pvt->pci_ta || !pvt->info.pci_vtd)

		goto enodev;



	for (i = 0; i < NUM_CHANNELS; i++) {

		if (!pvt->pci_tad[i])

			goto enodev;

	}

	return 0;



enodev:

	sbridge_printk(KERN_ERR, "Some needed devices are missing\n");

	return -ENODEV;

}



/****************************************************************************

			Error check routines

 ****************************************************************************/
@@ -2240,6 +2371,25 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type) 
		if (unlikely(rc < 0))

			goto fail0;

		break;

	case BROADWELL:

		/* rankcfgr isn't used */

		pvt->info.get_tolm = haswell_get_tolm;

		pvt->info.get_tohm = haswell_get_tohm;

		pvt->info.dram_rule = ibridge_dram_rule;

		pvt->info.get_memory_type = haswell_get_memory_type;

		pvt->info.get_node_id = haswell_get_node_id;

		pvt->info.rir_limit = haswell_rir_limit;

		pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule);

		pvt->info.interleave_list = ibridge_interleave_list;

		pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list);

		pvt->info.interleave_pkg = ibridge_interleave_pkg;

		mci->ctl_name = kasprintf(GFP_KERNEL, "Broadwell Socket#%d", mci->mc_idx);



		/* Store pci devices at mci for faster access */

		rc = broadwell_mci_bind_devs(mci, sbridge_dev);

		if (unlikely(rc < 0))

			goto fail0;

		break;

	}



	/* Get dimm basic config and the memory layout */
@@ -2305,6 +2455,10 @@ static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id) 
		rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_haswell_table);

		type = HASWELL;

		break;

	case PCI_DEVICE_ID_INTEL_BROADWELL_IMC_HA0:

		rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_broadwell_table);

		type = BROADWELL;

		break;

	}

	if (unlikely(rc < 0))

		goto fail0;

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