edac: driver for i5400 MCH (update) (8375d490) · Commits · e / devices / android_kernel_teracube_2e

drivers/edac/i5400_edac.c

+62 −57

Original line number	Original line	Diff line number	Diff line
	/*		/*
	* Intel 5400 class Memory Controllers kernel module		* Intel 5400 class Memory Controllers kernel module (Seaburg)
	*		*
	* This file may be distributed under the terms of the		* This file may be distributed under the terms of the
	* GNU General Public License.		* GNU General Public License.
	@@ -55,13 +55,11 @@
	* Function 1: Memory Branch Map, Control, Errors Register		* Function 1: Memory Branch Map, Control, Errors Register
	* Function 2: FSB Error Registers		* Function 2: FSB Error Registers
	*		*
	* All 3 functions of Device 16 (0,1,2) share the SAME DID		* All 3 functions of Device 16 (0,1,2) share the SAME DID and
			* uses PCI_DEVICE_ID_INTEL_5400_ERR for device 16 (0,1,2),
			* PCI_DEVICE_ID_INTEL_5400_FBD0 and PCI_DEVICE_ID_INTEL_5400_FBD1
			* for device 21 (0,1).
	*/		*/
	#ifndef PCI_DEVICE_ID_INTEL_5400_ERR
	#define PCI_DEVICE_ID_INTEL_5400_ERR 0x4030 /* Device 16 (0,1,2) */
	#define PCI_DEVICE_ID_INTEL_5400_FBD0 0x4035 /* Device 21 (0,1) */
	#define PCI_DEVICE_ID_INTEL_5400_FBD1 0x4036 /* Device 21 (0,1) */
	#endif

	/* OFFSETS for Function 0 */		/* OFFSETS for Function 0 */
	#define AMBASE 0x48 /* AMB Mem Mapped Reg Region Base */		#define AMBASE 0x48 /* AMB Mem Mapped Reg Region Base */
	@@ -174,17 +172,17 @@ enum error_mask {
	/*		/*
	* Names to translate bit error into something useful		* Names to translate bit error into something useful
	*/		*/
	char *error_name[] = {		static const char *error_name[] = {
	[0] = "Memory Write error on non-redundant retry",		[0] = "Memory Write error on non-redundant retry",
	[1] = "Memory or FB-DIMM configuration CRC read error",		[1] = "Memory or FB-DIMM configuration CRC read error",
	/* Reserved */		/* Reserved */
	[3] = "Uncorrectable Data ECC on Replay",		[3] = "Uncorrectable Data ECC on Replay",
	[4] = "Aliased Uncorrectable Non-Mirrored Demand Data ECC",		[4] = "Aliased Uncorrectable Non-Mirrored Demand Data ECC",
	/* Unsupported on i5400 */		/* M6 Unsupported on i5400 */
	[6] = "Aliased Uncorrectable Resilver- or Spare-Copy Data ECC",		[6] = "Aliased Uncorrectable Resilver- or Spare-Copy Data ECC",
	[7] = "Aliased Uncorrectable Patrol Data ECC",		[7] = "Aliased Uncorrectable Patrol Data ECC",
	[8] = "Non-Aliased Uncorrectable Non-Mirrored Demand Data ECC",		[8] = "Non-Aliased Uncorrectable Non-Mirrored Demand Data ECC",
	/* Unsupported */		/* M10 Unsupported on i5400 */
	[10] = "Non-Aliased Uncorrectable Resilver- or Spare-Copy Data ECC",		[10] = "Non-Aliased Uncorrectable Resilver- or Spare-Copy Data ECC",
	[11] = "Non-Aliased Uncorrectable Patrol Data ECC",		[11] = "Non-Aliased Uncorrectable Patrol Data ECC",
	[12] = "Memory Write error on first attempt",		[12] = "Memory Write error on first attempt",
	@@ -192,7 +190,7 @@ char *error_name[] = {
	[14] = "Memory or FB-DIMM configuration CRC read error",		[14] = "Memory or FB-DIMM configuration CRC read error",
	[15] = "Channel Failed-Over Occurred",		[15] = "Channel Failed-Over Occurred",
	[16] = "Correctable Non-Mirrored Demand Data ECC",		[16] = "Correctable Non-Mirrored Demand Data ECC",
	/* Unsupported */		/* M18 Unsupported on i5400 */
	[18] = "Correctable Resilver- or Spare-Copy Data ECC",		[18] = "Correctable Resilver- or Spare-Copy Data ECC",
	[19] = "Correctable Patrol Data ECC",		[19] = "Correctable Patrol Data ECC",
	[20] = "FB-DIMM Northbound parity error on FB-DIMM Sync Status",		[20] = "FB-DIMM Northbound parity error on FB-DIMM Sync Status",
	@@ -259,16 +257,24 @@ char *error_name[] = {
	#define FERR_FAT_MASK ERROR_FAT_MASK		#define FERR_FAT_MASK ERROR_FAT_MASK

	/* masks for non-fatal error register */		/* masks for non-fatal error register */
	#define TO_NF_MASK(a) (((a) & EMASK_M29) \| ((a) >> 3))		static inline int to_nf_mask(unsigned int mask)
	#define FROM_NF_FERR(a) (((a) & EMASK_M29) \| (((a) << 3) & ((1 << 30)-1)))		{
			return (mask & EMASK_M29) \| (mask >> 3);
			};

			static inline int from_nf_ferr(unsigned int mask)
			{
			return (mask & EMASK_M29) \| /* Bit 28 */
			(mask & ((1 << 28) - 1) << 3); /* Bits 0 to 27 */
			};

	#define FERR_NF_MASK TO_NF_MASK(ERROR_NF_MASK)		#define FERR_NF_MASK to_nf_mask(ERROR_NF_MASK)
	#define FERR_NF_CORRECTABLE TO_NF_MASK(ERROR_NF_CORRECTABLE)		#define FERR_NF_CORRECTABLE to_nf_mask(ERROR_NF_CORRECTABLE)
	#define FERR_NF_DIMM_SPARE TO_NF_MASK(ERROR_NF_DIMM_SPARE)		#define FERR_NF_DIMM_SPARE to_nf_mask(ERROR_NF_DIMM_SPARE)
	#define FERR_NF_SPD_PROTOCOL TO_NF_MASK(ERROR_NF_SPD_PROTOCOL)		#define FERR_NF_SPD_PROTOCOL to_nf_mask(ERROR_NF_SPD_PROTOCOL)
	#define FERR_NF_NORTH_CRC TO_NF_MASK(ERROR_NF_NORTH_CRC)		#define FERR_NF_NORTH_CRC to_nf_mask(ERROR_NF_NORTH_CRC)
	#define FERR_NF_RECOVERABLE TO_NF_MASK(ERROR_NF_RECOVERABLE)		#define FERR_NF_RECOVERABLE to_nf_mask(ERROR_NF_RECOVERABLE)
	#define FERR_NF_UNCORRECTABLE TO_NF_MASK(ERROR_NF_UNCORRECTABLE)		#define FERR_NF_UNCORRECTABLE to_nf_mask(ERROR_NF_UNCORRECTABLE)

	/* Defines to extract the vaious fields from the		/* Defines to extract the vaious fields from the
	* MTRx - Memory Technology Registers		* MTRx - Memory Technology Registers
	@@ -293,7 +299,7 @@ static inline int extract_fbdchan_indx(u32 x)

	#ifdef CONFIG_EDAC_DEBUG		#ifdef CONFIG_EDAC_DEBUG
	/* MTR NUMROW */		/* MTR NUMROW */
	static char *numrow_toString[] = {		static const char *numrow_toString[] = {
	"8,192 - 13 rows",		"8,192 - 13 rows",
	"16,384 - 14 rows",		"16,384 - 14 rows",
	"32,768 - 15 rows",		"32,768 - 15 rows",
	@@ -301,7 +307,7 @@ static char *numrow_toString[] = {
	};		};

	/* MTR NUMCOL */		/* MTR NUMCOL */
	static char *numcol_toString[] = {		static const char *numcol_toString[] = {
	"1,024 - 10 columns",		"1,024 - 10 columns",
	"2,048 - 11 columns",		"2,048 - 11 columns",
	"4,096 - 12 columns",		"4,096 - 12 columns",
	@@ -370,7 +376,7 @@ struct i5400_error_info {
	u16 recmema; /* Recoverable Mem Error log A */		u16 recmema; /* Recoverable Mem Error log A */
	u32 recmemb; /* Recoverable Mem Error log B */		u32 recmemb; /* Recoverable Mem Error log B */

	/* These registers are input ONLY if there was a Non-Recoverable Error */		/* These registers are input ONLY if there was a Non-Rec Error */
	u16 nrecmema; /* Non-Recoverable Mem log A */		u16 nrecmema; /* Non-Recoverable Mem log A */
	u16 nrecmemb; /* Non-Recoverable Mem log B */		u16 nrecmemb; /* Non-Recoverable Mem log B */

	@@ -560,10 +566,10 @@ static void i5400_proccess_non_recoverable_info(struct mem_ctl_info *mci,

	/* Form out message */		/* Form out message */
	snprintf(msg, sizeof(msg),		snprintf(msg, sizeof(msg),
	"%s (Branch=%d DRAM-Bank=%d Buffer ID = %d RDWR=%s RAS=%d CAS=%d "		"%s (Branch=%d DRAM-Bank=%d Buffer ID = %d RDWR=%s "
	"%s Err=0x%lx (%s))",		"RAS=%d CAS=%d %s Err=0x%lx (%s))",
	type, branch >> 1, bank, buf_id, rdwr_str(rdwr), ras, cas, type,		type, branch >> 1, bank, buf_id, rdwr_str(rdwr), ras, cas,
	allErrors, error_name[errnum]);		type, allErrors, error_name[errnum]);

	/* Call the helper to output message */		/* Call the helper to output message */
	edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg);		edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg);
	@@ -590,7 +596,7 @@ static void i5400_process_nonfatal_error_info(struct mem_ctl_info *mci,
	int errnum;		int errnum;

	/* mask off the Error bits that are possible */		/* mask off the Error bits that are possible */
	allErrors = FROM_NF_FERR(info->ferr_nf_fbd & FERR_NF_MASK);		allErrors = from_nf_ferr(info->ferr_nf_fbd & FERR_NF_MASK);
	if (!allErrors)		if (!allErrors)
	return; /* if no error, return now */		return; /* if no error, return now */

	@@ -631,10 +637,10 @@ static void i5400_process_nonfatal_error_info(struct mem_ctl_info *mci,

	/* Form out message */		/* Form out message */
	snprintf(msg, sizeof(msg),		snprintf(msg, sizeof(msg),
	"Corrected error (Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d "		"Corrected error (Branch=%d DRAM-Bank=%d RDWR=%s "
	"CAS=%d, CE Err=0x%lx (%s))", branch >> 1, bank,		"RAS=%d CAS=%d, CE Err=0x%lx (%s))",
	rdwr_str(rdwr), ras, cas, allErrors,		branch >> 1, bank, rdwr_str(rdwr), ras, cas,
	error_name[errnum]);		allErrors, error_name[errnum]);

	/* Call the helper to output message */		/* Call the helper to output message */
	edac_mc_handle_fbd_ce(mci, rank, channel, msg);		edac_mc_handle_fbd_ce(mci, rank, channel, msg);
	@@ -704,16 +710,9 @@ static void i5400_put_devices(struct mem_ctl_info *mci)
	pvt = mci->pvt_info;		pvt = mci->pvt_info;

	/* Decrement usage count for devices */		/* Decrement usage count for devices */
	if (pvt->branch_1)
	pci_dev_put(pvt->branch_1);		pci_dev_put(pvt->branch_1);

	if (pvt->branch_0)
	pci_dev_put(pvt->branch_0);		pci_dev_put(pvt->branch_0);

	if (pvt->fsb_error_regs)
	pci_dev_put(pvt->fsb_error_regs);		pci_dev_put(pvt->fsb_error_regs);

	if (pvt->branchmap_werrors)
	pci_dev_put(pvt->branchmap_werrors);		pci_dev_put(pvt->branchmap_werrors);
	}		}

	@@ -810,9 +809,9 @@ static int i5400_get_devices(struct mem_ctl_info *mci, int dev_idx)
	/*		/*
	* determine_amb_present		* determine_amb_present
	*		*
	* the information is contained in NUM_MTRS_PER_BRANCH different registers		* the information is contained in NUM_MTRS_PER_BRANCH different
	* determining which of the NUM_MTRS_PER_BRANCH requires knowing		* registers determining which of the NUM_MTRS_PER_BRANCH requires
	* which channel is in question		* knowing which channel is in question
	*		*
	* 2 branches, each with 2 channels		* 2 branches, each with 2 channels
	* b0_ambpresent0 for channel '0'		* b0_ambpresent0 for channel '0'
	@@ -842,7 +841,7 @@ static int determine_amb_present_reg(struct i5400_pvt *pvt, int channel)
	/*		/*
	* determine_mtr(pvt, csrow, channel)		* determine_mtr(pvt, csrow, channel)
	*		*
	* return the proper MTR register as determine by the csrow and channel desired		* return the proper MTR register as determine by the csrow and desired channel
	*/		*/
	static int determine_mtr(struct i5400_pvt *pvt, int csrow, int channel)		static int determine_mtr(struct i5400_pvt *pvt, int csrow, int channel)
	{		{
	@@ -857,7 +856,8 @@ static int determine_mtr(struct i5400_pvt *pvt, int csrow, int channel)
	n = csrow >> 3;		n = csrow >> 3;

	if (n >= NUM_MTRS_PER_BRANCH) {		if (n >= NUM_MTRS_PER_BRANCH) {
	debugf0("ERROR: trying to access an invalid csrow: %d\n", csrow);		debugf0("ERROR: trying to access an invalid csrow: %d\n",
			csrow);
	return 0;		return 0;
	}		}

	@@ -1251,6 +1251,9 @@ static int i5400_probe1(struct pci_dev *pdev, int dev_idx)
	int num_dimms_per_channel;		int num_dimms_per_channel;
	int num_csrows;		int num_csrows;

			if (dev_idx >= ARRAY_SIZE(i5400_devs))
			return -EINVAL;

	debugf0("MC: " __FILE__ ": %s(), pdev bus %u dev=0x%x fn=0x%x\n",		debugf0("MC: " __FILE__ ": %s(), pdev bus %u dev=0x%x fn=0x%x\n",
	__func__,		__func__,
	pdev->bus->number,		pdev->bus->number,
	@@ -1425,7 +1428,7 @@ MODULE_DEVICE_TABLE(pci, i5400_pci_tbl);
	*		*
	*/		*/
	static struct pci_driver i5400_driver = {		static struct pci_driver i5400_driver = {
	.name = KBUILD_BASENAME,		.name = "i5400_edac",
	.probe = i5400_init_one,		.probe = i5400_init_one,
	.remove = __devexit_p(i5400_remove_one),		.remove = __devexit_p(i5400_remove_one),
	.id_table = i5400_pci_tbl,		.id_table = i5400_pci_tbl,
	@@ -1463,9 +1466,11 @@ module_init(i5400_init);
	module_exit(i5400_exit);		module_exit(i5400_exit);

	MODULE_LICENSE("GPL");		MODULE_LICENSE("GPL");
	MODULE_AUTHOR("Ben Woodard <woodard@redhat.com> Red Hat Inc. (http://www.redhat.com)");		MODULE_AUTHOR("Ben Woodard <woodard@redhat.com>");
	MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com> Red Hat Inc. (http://www.redhat.com)");		MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
	MODULE_DESCRIPTION("MC Driver for Intel I5400 memory controllers - " I5400_REVISION);		MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)");
			MODULE_DESCRIPTION("MC Driver for Intel I5400 memory controllers - "
			I5400_REVISION);

	module_param(edac_op_state, int, 0444);		module_param(edac_op_state, int, 0444);
	MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");		MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");