提交 c29f5ec0 编写于 作者: L Linus Torvalds

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (26 commits)
  amd64_edac: add MAINTAINERS entry
  EDAC: do not enable modules by default
  amd64_edac: do not enable module by default
  amd64_edac: add module registration routines
  amd64_edac: add ECC reporting initializers
  amd64_edac: add EDAC core-related initializers
  amd64_edac: add error decoding logic
  amd64_edac: add ECC chipkill syndrome mapping table
  amd64_edac: add per-family descriptors
  amd64_edac: add F10h-and-later methods-p3
  amd64_edac: add F10h-and-later methods-p2
  amd64_edac: add F10h-and-later methods-p1
  amd64_edac: add k8-specific methods
  amd64_edac: assign DRAM chip select base and mask in a family-specific way
  amd64_edac: add helper to dump relevant registers
  amd64_edac: add DRAM address type conversion facilities
  amd64_edac: add functionality to compute the DRAM hole
  amd64_edac: add sys addr to memory controller mapping helpers
  amd64_edac: add memory scrubber interface
  amd64_edac: add MCA error types
  ...
......@@ -1979,6 +1979,16 @@ F: Documentation/edac.txt
F: drivers/edac/edac_*
F: include/linux/edac.h
EDAC-AMD64
P: Doug Thompson
M: dougthompson@xmission.com
P: Borislav Petkov
M: borislav.petkov@amd.com
L: bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
W: bluesmoke.sourceforge.net
S: Supported
F: drivers/edac/amd64_edac*
EDAC-E752X
P: Mark Gross
M: mark.gross@intel.com
......
......@@ -12,6 +12,17 @@
#include <asm/asm.h>
#include <asm/errno.h>
#include <asm/cpumask.h>
struct msr {
union {
struct {
u32 l;
u32 h;
};
u64 q;
};
};
static inline unsigned long long native_read_tscp(unsigned int *aux)
{
......@@ -216,6 +227,8 @@ do { \
#ifdef CONFIG_SMP
int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
void rdmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs);
void wrmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs);
int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
#else /* CONFIG_SMP */
......@@ -229,6 +242,16 @@ static inline int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
wrmsr(msr_no, l, h);
return 0;
}
static inline void rdmsr_on_cpus(const cpumask_t *m, u32 msr_no,
struct msr *msrs)
{
rdmsr_on_cpu(0, msr_no, &(msrs[0].l), &(msrs[0].h));
}
static inline void wrmsr_on_cpus(const cpumask_t *m, u32 msr_no,
struct msr *msrs)
{
wrmsr_on_cpu(0, msr_no, msrs[0].l, msrs[0].h);
}
static inline int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no,
u32 *l, u32 *h)
{
......
......@@ -2,7 +2,7 @@
# Makefile for x86 specific library files.
#
obj-$(CONFIG_SMP) := msr-on-cpu.o
obj-$(CONFIG_SMP) := msr.o
lib-y := delay.o
lib-y += thunk_$(BITS).o
......
......@@ -5,22 +5,38 @@
struct msr_info {
u32 msr_no;
u32 l, h;
struct msr reg;
struct msr *msrs;
int off;
int err;
};
static void __rdmsr_on_cpu(void *info)
{
struct msr_info *rv = info;
struct msr *reg;
int this_cpu = raw_smp_processor_id();
rdmsr(rv->msr_no, rv->l, rv->h);
if (rv->msrs)
reg = &rv->msrs[this_cpu - rv->off];
else
reg = &rv->reg;
rdmsr(rv->msr_no, reg->l, reg->h);
}
static void __wrmsr_on_cpu(void *info)
{
struct msr_info *rv = info;
struct msr *reg;
int this_cpu = raw_smp_processor_id();
if (rv->msrs)
reg = &rv->msrs[this_cpu - rv->off];
else
reg = &rv->reg;
wrmsr(rv->msr_no, rv->l, rv->h);
wrmsr(rv->msr_no, reg->l, reg->h);
}
int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
......@@ -28,26 +44,95 @@ int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
*l = rv.l;
*h = rv.h;
*l = rv.reg.l;
*h = rv.reg.h;
return err;
}
EXPORT_SYMBOL(rdmsr_on_cpu);
int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
rv.l = l;
rv.h = h;
rv.reg.l = l;
rv.reg.h = h;
err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
return err;
}
EXPORT_SYMBOL(wrmsr_on_cpu);
/* rdmsr on a bunch of CPUs
*
* @mask: which CPUs
* @msr_no: which MSR
* @msrs: array of MSR values
*
*/
void rdmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs)
{
struct msr_info rv;
int this_cpu;
memset(&rv, 0, sizeof(rv));
rv.off = cpumask_first(mask);
rv.msrs = msrs;
rv.msr_no = msr_no;
preempt_disable();
/*
* FIXME: handle the CPU we're executing on separately for now until
* smp_call_function_many has been fixed to not skip it.
*/
this_cpu = raw_smp_processor_id();
smp_call_function_single(this_cpu, __rdmsr_on_cpu, &rv, 1);
smp_call_function_many(mask, __rdmsr_on_cpu, &rv, 1);
preempt_enable();
}
EXPORT_SYMBOL(rdmsr_on_cpus);
/*
* wrmsr on a bunch of CPUs
*
* @mask: which CPUs
* @msr_no: which MSR
* @msrs: array of MSR values
*
*/
void wrmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs)
{
struct msr_info rv;
int this_cpu;
memset(&rv, 0, sizeof(rv));
rv.off = cpumask_first(mask);
rv.msrs = msrs;
rv.msr_no = msr_no;
preempt_disable();
/*
* FIXME: handle the CPU we're executing on separately for now until
* smp_call_function_many has been fixed to not skip it.
*/
this_cpu = raw_smp_processor_id();
smp_call_function_single(this_cpu, __wrmsr_on_cpu, &rv, 1);
smp_call_function_many(mask, __wrmsr_on_cpu, &rv, 1);
preempt_enable();
}
EXPORT_SYMBOL(wrmsr_on_cpus);
/* These "safe" variants are slower and should be used when the target MSR
may not actually exist. */
......@@ -55,14 +140,14 @@ static void __rdmsr_safe_on_cpu(void *info)
{
struct msr_info *rv = info;
rv->err = rdmsr_safe(rv->msr_no, &rv->l, &rv->h);
rv->err = rdmsr_safe(rv->msr_no, &rv->reg.l, &rv->reg.h);
}
static void __wrmsr_safe_on_cpu(void *info)
{
struct msr_info *rv = info;
rv->err = wrmsr_safe(rv->msr_no, rv->l, rv->h);
rv->err = wrmsr_safe(rv->msr_no, rv->reg.l, rv->reg.h);
}
int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
......@@ -70,28 +155,29 @@ int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
*l = rv.l;
*h = rv.h;
*l = rv.reg.l;
*h = rv.reg.h;
return err ? err : rv.err;
}
EXPORT_SYMBOL(rdmsr_safe_on_cpu);
int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
rv.l = l;
rv.h = h;
rv.reg.l = l;
rv.reg.h = h;
err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
return err ? err : rv.err;
}
EXPORT_SYMBOL(rdmsr_on_cpu);
EXPORT_SYMBOL(wrmsr_on_cpu);
EXPORT_SYMBOL(rdmsr_safe_on_cpu);
EXPORT_SYMBOL(wrmsr_safe_on_cpu);
......@@ -49,7 +49,6 @@ config EDAC_DEBUG_VERBOSE
config EDAC_MM_EDAC
tristate "Main Memory EDAC (Error Detection And Correction) reporting"
default y
help
Some systems are able to detect and correct errors in main
memory. EDAC can report statistics on memory error
......@@ -58,6 +57,31 @@ config EDAC_MM_EDAC
occurred so that a particular failing memory module can be
replaced. If unsure, select 'Y'.
config EDAC_AMD64
tristate "AMD64 (Opteron, Athlon64) K8, F10h, F11h"
depends on EDAC_MM_EDAC && K8_NB && X86_64 && PCI
help
Support for error detection and correction on the AMD 64
Families of Memory Controllers (K8, F10h and F11h)
config EDAC_AMD64_ERROR_INJECTION
bool "Sysfs Error Injection facilities"
depends on EDAC_AMD64
help
Recent Opterons (Family 10h and later) provide for Memory Error
Injection into the ECC detection circuits. The amd64_edac module
allows the operator/user to inject Uncorrectable and Correctable
errors into DRAM.
When enabled, in each of the respective memory controller directories
(/sys/devices/system/edac/mc/mcX), there are 3 input files:
- inject_section (0..3, 16-byte section of 64-byte cacheline),
- inject_word (0..8, 16-bit word of 16-byte section),
- inject_ecc_vector (hex ecc vector: select bits of inject word)
In addition, there are two control files, inject_read and inject_write,
which trigger the DRAM ECC Read and Write respectively.
config EDAC_AMD76X
tristate "AMD 76x (760, 762, 768)"
......
......@@ -30,6 +30,13 @@ obj-$(CONFIG_EDAC_I3000) += i3000_edac.o
obj-$(CONFIG_EDAC_X38) += x38_edac.o
obj-$(CONFIG_EDAC_I82860) += i82860_edac.o
obj-$(CONFIG_EDAC_R82600) += r82600_edac.o
amd64_edac_mod-y := amd64_edac_err_types.o amd64_edac.o
amd64_edac_mod-$(CONFIG_EDAC_DEBUG) += amd64_edac_dbg.o
amd64_edac_mod-$(CONFIG_EDAC_AMD64_ERROR_INJECTION) += amd64_edac_inj.o
obj-$(CONFIG_EDAC_AMD64) += amd64_edac_mod.o
obj-$(CONFIG_EDAC_PASEMI) += pasemi_edac.o
obj-$(CONFIG_EDAC_MPC85XX) += mpc85xx_edac.o
obj-$(CONFIG_EDAC_MV64X60) += mv64x60_edac.o
......
此差异已折叠。
/*
* AMD64 class Memory Controller kernel module
*
* Copyright (c) 2009 SoftwareBitMaker.
* Copyright (c) 2009 Advanced Micro Devices, Inc.
*
* This file may be distributed under the terms of the
* GNU General Public License.
*
* Originally Written by Thayne Harbaugh
*
* Changes by Douglas "norsk" Thompson <dougthompson@xmission.com>:
* - K8 CPU Revision D and greater support
*
* Changes by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>:
* - Module largely rewritten, with new (and hopefully correct)
* code for dealing with node and chip select interleaving,
* various code cleanup, and bug fixes
* - Added support for memory hoisting using DRAM hole address
* register
*
* Changes by Douglas "norsk" Thompson <dougthompson@xmission.com>:
* -K8 Rev (1207) revision support added, required Revision
* specific mini-driver code to support Rev F as well as
* prior revisions
*
* Changes by Douglas "norsk" Thompson <dougthompson@xmission.com>:
* -Family 10h revision support added. New PCI Device IDs,
* indicating new changes. Actual registers modified
* were slight, less than the Rev E to Rev F transition
* but changing the PCI Device ID was the proper thing to
* do, as it provides for almost automactic family
* detection. The mods to Rev F required more family
* information detection.
*
* Changes/Fixes by Borislav Petkov <borislav.petkov@amd.com>:
* - misc fixes and code cleanups
*
* This module is based on the following documents
* (available from http://www.amd.com/):
*
* Title: BIOS and Kernel Developer's Guide for AMD Athlon 64 and AMD
* Opteron Processors
* AMD publication #: 26094
*` Revision: 3.26
*
* Title: BIOS and Kernel Developer's Guide for AMD NPT Family 0Fh
* Processors
* AMD publication #: 32559
* Revision: 3.00
* Issue Date: May 2006
*
* Title: BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h
* Processors
* AMD publication #: 31116
* Revision: 3.00
* Issue Date: September 07, 2007
*
* Sections in the first 2 documents are no longer in sync with each other.
* The Family 10h BKDG was totally re-written from scratch with a new
* presentation model.
* Therefore, comments that refer to a Document section might be off.
*/
#include <linux/module.h>
#include <linux/ctype.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
#include <linux/slab.h>
#include <linux/mmzone.h>
#include <linux/edac.h>
#include <asm/msr.h>
#include "edac_core.h"
#define amd64_printk(level, fmt, arg...) \
edac_printk(level, "amd64", fmt, ##arg)
#define amd64_mc_printk(mci, level, fmt, arg...) \
edac_mc_chipset_printk(mci, level, "amd64", fmt, ##arg)
/*
* Throughout the comments in this code, the following terms are used:
*
* SysAddr, DramAddr, and InputAddr
*
* These terms come directly from the amd64 documentation
* (AMD publication #26094). They are defined as follows:
*
* SysAddr:
* This is a physical address generated by a CPU core or a device
* doing DMA. If generated by a CPU core, a SysAddr is the result of
* a virtual to physical address translation by the CPU core's address
* translation mechanism (MMU).
*
* DramAddr:
* A DramAddr is derived from a SysAddr by subtracting an offset that
* depends on which node the SysAddr maps to and whether the SysAddr
* is within a range affected by memory hoisting. The DRAM Base
* (section 3.4.4.1) and DRAM Limit (section 3.4.4.2) registers
* determine which node a SysAddr maps to.
*
* If the DRAM Hole Address Register (DHAR) is enabled and the SysAddr
* is within the range of addresses specified by this register, then
* a value x from the DHAR is subtracted from the SysAddr to produce a
* DramAddr. Here, x represents the base address for the node that
* the SysAddr maps to plus an offset due to memory hoisting. See
* section 3.4.8 and the comments in amd64_get_dram_hole_info() and
* sys_addr_to_dram_addr() below for more information.
*
* If the SysAddr is not affected by the DHAR then a value y is
* subtracted from the SysAddr to produce a DramAddr. Here, y is the
* base address for the node that the SysAddr maps to. See section
* 3.4.4 and the comments in sys_addr_to_dram_addr() below for more
* information.
*
* InputAddr:
* A DramAddr is translated to an InputAddr before being passed to the
* memory controller for the node that the DramAddr is associated
* with. The memory controller then maps the InputAddr to a csrow.
* If node interleaving is not in use, then the InputAddr has the same
* value as the DramAddr. Otherwise, the InputAddr is produced by
* discarding the bits used for node interleaving from the DramAddr.
* See section 3.4.4 for more information.
*
* The memory controller for a given node uses its DRAM CS Base and
* DRAM CS Mask registers to map an InputAddr to a csrow. See
* sections 3.5.4 and 3.5.5 for more information.
*/
#define EDAC_AMD64_VERSION " Ver: 3.2.0 " __DATE__
#define EDAC_MOD_STR "amd64_edac"
/* Extended Model from CPUID, for CPU Revision numbers */
#define OPTERON_CPU_LE_REV_C 0
#define OPTERON_CPU_REV_D 1
#define OPTERON_CPU_REV_E 2
/* NPT processors have the following Extended Models */
#define OPTERON_CPU_REV_F 4
#define OPTERON_CPU_REV_FA 5
/* Hardware limit on ChipSelect rows per MC and processors per system */
#define CHIPSELECT_COUNT 8
#define DRAM_REG_COUNT 8
/*
* PCI-defined configuration space registers
*/
/*
* Function 1 - Address Map
*/
#define K8_DRAM_BASE_LOW 0x40
#define K8_DRAM_LIMIT_LOW 0x44
#define K8_DHAR 0xf0
#define DHAR_VALID BIT(0)
#define F10_DRAM_MEM_HOIST_VALID BIT(1)
#define DHAR_BASE_MASK 0xff000000
#define dhar_base(dhar) (dhar & DHAR_BASE_MASK)
#define K8_DHAR_OFFSET_MASK 0x0000ff00
#define k8_dhar_offset(dhar) ((dhar & K8_DHAR_OFFSET_MASK) << 16)
#define F10_DHAR_OFFSET_MASK 0x0000ff80
/* NOTE: Extra mask bit vs K8 */
#define f10_dhar_offset(dhar) ((dhar & F10_DHAR_OFFSET_MASK) << 16)
/* F10 High BASE/LIMIT registers */
#define F10_DRAM_BASE_HIGH 0x140
#define F10_DRAM_LIMIT_HIGH 0x144
/*
* Function 2 - DRAM controller
*/
#define K8_DCSB0 0x40
#define F10_DCSB1 0x140
#define K8_DCSB_CS_ENABLE BIT(0)
#define K8_DCSB_NPT_SPARE BIT(1)
#define K8_DCSB_NPT_TESTFAIL BIT(2)
/*
* REV E: select [31:21] and [15:9] from DCSB and the shift amount to form
* the address
*/
#define REV_E_DCSB_BASE_BITS (0xFFE0FE00ULL)
#define REV_E_DCS_SHIFT 4
#define REV_E_DCSM_COUNT 8
#define REV_F_F1Xh_DCSB_BASE_BITS (0x1FF83FE0ULL)
#define REV_F_F1Xh_DCS_SHIFT 8
/*
* REV F and later: selects [28:19] and [13:5] from DCSB and the shift amount
* to form the address
*/
#define REV_F_DCSB_BASE_BITS (0x1FF83FE0ULL)
#define REV_F_DCS_SHIFT 8
#define REV_F_DCSM_COUNT 4
#define F10_DCSM_COUNT 4
#define F11_DCSM_COUNT 2
/* DRAM CS Mask Registers */
#define K8_DCSM0 0x60
#define F10_DCSM1 0x160
/* REV E: select [29:21] and [15:9] from DCSM */
#define REV_E_DCSM_MASK_BITS 0x3FE0FE00
/* unused bits [24:20] and [12:0] */
#define REV_E_DCS_NOTUSED_BITS 0x01F01FFF
/* REV F and later: select [28:19] and [13:5] from DCSM */
#define REV_F_F1Xh_DCSM_MASK_BITS 0x1FF83FE0
/* unused bits [26:22] and [12:0] */
#define REV_F_F1Xh_DCS_NOTUSED_BITS 0x07C01FFF
#define DBAM0 0x80
#define DBAM1 0x180
/* Extract the DIMM 'type' on the i'th DIMM from the DBAM reg value passed */
#define DBAM_DIMM(i, reg) ((((reg) >> (4*i))) & 0xF)
#define DBAM_MAX_VALUE 11
#define F10_DCLR_0 0x90
#define F10_DCLR_1 0x190
#define REVE_WIDTH_128 BIT(16)
#define F10_WIDTH_128 BIT(11)
#define F10_DCHR_0 0x94
#define F10_DCHR_1 0x194
#define F10_DCHR_FOUR_RANK_DIMM BIT(18)
#define F10_DCHR_Ddr3Mode BIT(8)
#define F10_DCHR_MblMode BIT(6)
#define F10_DCTL_SEL_LOW 0x110
#define dct_sel_baseaddr(pvt) \
((pvt->dram_ctl_select_low) & 0xFFFFF800)
#define dct_sel_interleave_addr(pvt) \
(((pvt->dram_ctl_select_low) >> 6) & 0x3)
enum {
F10_DCTL_SEL_LOW_DctSelHiRngEn = BIT(0),
F10_DCTL_SEL_LOW_DctSelIntLvEn = BIT(2),
F10_DCTL_SEL_LOW_DctGangEn = BIT(4),
F10_DCTL_SEL_LOW_DctDatIntLv = BIT(5),
F10_DCTL_SEL_LOW_DramEnable = BIT(8),
F10_DCTL_SEL_LOW_MemCleared = BIT(10),
};
#define dct_high_range_enabled(pvt) \
(pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctSelHiRngEn)
#define dct_interleave_enabled(pvt) \
(pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctSelIntLvEn)
#define dct_ganging_enabled(pvt) \
(pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctGangEn)
#define dct_data_intlv_enabled(pvt) \
(pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctDatIntLv)
#define dct_dram_enabled(pvt) \
(pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DramEnable)
#define dct_memory_cleared(pvt) \
(pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_MemCleared)
#define F10_DCTL_SEL_HIGH 0x114
/*
* Function 3 - Misc Control
*/
#define K8_NBCTL 0x40
/* Correctable ECC error reporting enable */
#define K8_NBCTL_CECCEn BIT(0)
/* UnCorrectable ECC error reporting enable */
#define K8_NBCTL_UECCEn BIT(1)
#define K8_NBCFG 0x44
#define K8_NBCFG_CHIPKILL BIT(23)
#define K8_NBCFG_ECC_ENABLE BIT(22)
#define K8_NBSL 0x48
#define EXTRACT_HIGH_SYNDROME(x) (((x) >> 24) & 0xff)
#define EXTRACT_EXT_ERROR_CODE(x) (((x) >> 16) & 0x1f)
/* Family F10h: Normalized Extended Error Codes */
#define F10_NBSL_EXT_ERR_RES 0x0
#define F10_NBSL_EXT_ERR_CRC 0x1
#define F10_NBSL_EXT_ERR_SYNC 0x2
#define F10_NBSL_EXT_ERR_MST 0x3
#define F10_NBSL_EXT_ERR_TGT 0x4
#define F10_NBSL_EXT_ERR_GART 0x5
#define F10_NBSL_EXT_ERR_RMW 0x6
#define F10_NBSL_EXT_ERR_WDT 0x7
#define F10_NBSL_EXT_ERR_ECC 0x8
#define F10_NBSL_EXT_ERR_DEV 0x9
#define F10_NBSL_EXT_ERR_LINK_DATA 0xA
/* Next two are overloaded values */
#define F10_NBSL_EXT_ERR_LINK_PROTO 0xB
#define F10_NBSL_EXT_ERR_L3_PROTO 0xB
#define F10_NBSL_EXT_ERR_NB_ARRAY 0xC
#define F10_NBSL_EXT_ERR_DRAM_PARITY 0xD
#define F10_NBSL_EXT_ERR_LINK_RETRY 0xE
/* Next two are overloaded values */
#define F10_NBSL_EXT_ERR_GART_WALK 0xF
#define F10_NBSL_EXT_ERR_DEV_WALK 0xF
/* 0x10 to 0x1B: Reserved */
#define F10_NBSL_EXT_ERR_L3_DATA 0x1C
#define F10_NBSL_EXT_ERR_L3_TAG 0x1D
#define F10_NBSL_EXT_ERR_L3_LRU 0x1E
/* K8: Normalized Extended Error Codes */
#define K8_NBSL_EXT_ERR_ECC 0x0
#define K8_NBSL_EXT_ERR_CRC 0x1
#define K8_NBSL_EXT_ERR_SYNC 0x2
#define K8_NBSL_EXT_ERR_MST 0x3
#define K8_NBSL_EXT_ERR_TGT 0x4
#define K8_NBSL_EXT_ERR_GART 0x5
#define K8_NBSL_EXT_ERR_RMW 0x6
#define K8_NBSL_EXT_ERR_WDT 0x7
#define K8_NBSL_EXT_ERR_CHIPKILL_ECC 0x8
#define K8_NBSL_EXT_ERR_DRAM_PARITY 0xD
#define EXTRACT_ERROR_CODE(x) ((x) & 0xffff)
#define TEST_TLB_ERROR(x) (((x) & 0xFFF0) == 0x0010)
#define TEST_MEM_ERROR(x) (((x) & 0xFF00) == 0x0100)
#define TEST_BUS_ERROR(x) (((x) & 0xF800) == 0x0800)
#define EXTRACT_TT_CODE(x) (((x) >> 2) & 0x3)
#define EXTRACT_II_CODE(x) (((x) >> 2) & 0x3)
#define EXTRACT_LL_CODE(x) (((x) >> 0) & 0x3)
#define EXTRACT_RRRR_CODE(x) (((x) >> 4) & 0xf)
#define EXTRACT_TO_CODE(x) (((x) >> 8) & 0x1)
#define EXTRACT_PP_CODE(x) (((x) >> 9) & 0x3)
/*
* The following are for BUS type errors AFTER values have been normalized by
* shifting right
*/
#define K8_NBSL_PP_SRC 0x0
#define K8_NBSL_PP_RES 0x1
#define K8_NBSL_PP_OBS 0x2
#define K8_NBSL_PP_GENERIC 0x3
#define K8_NBSH 0x4C
#define K8_NBSH_VALID_BIT BIT(31)
#define K8_NBSH_OVERFLOW BIT(30)
#define K8_NBSH_UNCORRECTED_ERR BIT(29)
#define K8_NBSH_ERR_ENABLE BIT(28)
#define K8_NBSH_MISC_ERR_VALID BIT(27)
#define K8_NBSH_VALID_ERROR_ADDR BIT(26)
#define K8_NBSH_PCC BIT(25)
#define K8_NBSH_CECC BIT(14)
#define K8_NBSH_UECC BIT(13)
#define K8_NBSH_ERR_SCRUBER BIT(8)
#define K8_NBSH_CORE3 BIT(3)
#define K8_NBSH_CORE2 BIT(2)
#define K8_NBSH_CORE1 BIT(1)
#define K8_NBSH_CORE0 BIT(0)
#define EXTRACT_LDT_LINK(x) (((x) >> 4) & 0x7)
#define EXTRACT_ERR_CPU_MAP(x) ((x) & 0xF)
#define EXTRACT_LOW_SYNDROME(x) (((x) >> 15) & 0xff)
#define K8_NBEAL 0x50
#define K8_NBEAH 0x54
#define K8_SCRCTRL 0x58
#define F10_NB_CFG_LOW 0x88
#define F10_NB_CFG_LOW_ENABLE_EXT_CFG BIT(14)
#define F10_NB_CFG_HIGH 0x8C
#define F10_ONLINE_SPARE 0xB0
#define F10_ONLINE_SPARE_SWAPDONE0(x) ((x) & BIT(1))
#define F10_ONLINE_SPARE_SWAPDONE1(x) ((x) & BIT(3))
#define F10_ONLINE_SPARE_BADDRAM_CS0(x) (((x) >> 4) & 0x00000007)
#define F10_ONLINE_SPARE_BADDRAM_CS1(x) (((x) >> 8) & 0x00000007)
#define F10_NB_ARRAY_ADDR 0xB8
#define F10_NB_ARRAY_DRAM_ECC 0x80000000
/* Bits [2:1] are used to select 16-byte section within a 64-byte cacheline */
#define SET_NB_ARRAY_ADDRESS(section) (((section) & 0x3) << 1)
#define F10_NB_ARRAY_DATA 0xBC
#define SET_NB_DRAM_INJECTION_WRITE(word, bits) \
(BIT(((word) & 0xF) + 20) | \
BIT(17) | \
((bits) & 0xF))
#define SET_NB_DRAM_INJECTION_READ(word, bits) \
(BIT(((word) & 0xF) + 20) | \
BIT(16) | \
((bits) & 0xF))
#define K8_NBCAP 0xE8
#define K8_NBCAP_CORES (BIT(12)|BIT(13))
#define K8_NBCAP_CHIPKILL BIT(4)
#define K8_NBCAP_SECDED BIT(3)
#define K8_NBCAP_8_NODE BIT(2)
#define K8_NBCAP_DUAL_NODE BIT(1)
#define K8_NBCAP_DCT_DUAL BIT(0)
/*
* MSR Regs
*/
#define K8_MSR_MCGCTL 0x017b
#define K8_MSR_MCGCTL_NBE BIT(4)
#define K8_MSR_MC4CTL 0x0410
#define K8_MSR_MC4STAT 0x0411
#define K8_MSR_MC4ADDR 0x0412
/* AMD sets the first MC device at device ID 0x18. */
static inline int get_mc_node_id_from_pdev(struct pci_dev *pdev)
{
return PCI_SLOT(pdev->devfn) - 0x18;
}
enum amd64_chipset_families {
K8_CPUS = 0,
F10_CPUS,
F11_CPUS,
};
/*
* Structure to hold:
*
* 1) dynamically read status and error address HW registers
* 2) sysfs entered values
* 3) MCE values
*
* Depends on entry into the modules
*/
struct amd64_error_info_regs {
u32 nbcfg;
u32 nbsh;
u32 nbsl;
u32 nbeah;
u32 nbeal;
};
/* Error injection control structure */
struct error_injection {
u32 section;
u32 word;
u32 bit_map;
};
struct amd64_pvt {
/* pci_device handles which we utilize */
struct pci_dev *addr_f1_ctl;
struct pci_dev *dram_f2_ctl;
struct pci_dev *misc_f3_ctl;
int mc_node_id; /* MC index of this MC node */
int ext_model; /* extended model value of this node */
struct low_ops *ops; /* pointer to per PCI Device ID func table */
int channel_count;
/* Raw registers */
u32 dclr0; /* DRAM Configuration Low DCT0 reg */
u32 dclr1; /* DRAM Configuration Low DCT1 reg */
u32 dchr0; /* DRAM Configuration High DCT0 reg */
u32 dchr1; /* DRAM Configuration High DCT1 reg */
u32 nbcap; /* North Bridge Capabilities */
u32 nbcfg; /* F10 North Bridge Configuration */
u32 ext_nbcfg; /* Extended F10 North Bridge Configuration */
u32 dhar; /* DRAM Hoist reg */
u32 dbam0; /* DRAM Base Address Mapping reg for DCT0 */
u32 dbam1; /* DRAM Base Address Mapping reg for DCT1 */
/* DRAM CS Base Address Registers F2x[1,0][5C:40] */
u32 dcsb0[CHIPSELECT_COUNT];
u32 dcsb1[CHIPSELECT_COUNT];
/* DRAM CS Mask Registers F2x[1,0][6C:60] */
u32 dcsm0[CHIPSELECT_COUNT];
u32 dcsm1[CHIPSELECT_COUNT];
/*
* Decoded parts of DRAM BASE and LIMIT Registers
* F1x[78,70,68,60,58,50,48,40]
*/
u64 dram_base[DRAM_REG_COUNT];
u64 dram_limit[DRAM_REG_COUNT];
u8 dram_IntlvSel[DRAM_REG_COUNT];
u8 dram_IntlvEn[DRAM_REG_COUNT];
u8 dram_DstNode[DRAM_REG_COUNT];
u8 dram_rw_en[DRAM_REG_COUNT];
/*
* The following fields are set at (load) run time, after CPU revision
* has been determined, since the dct_base and dct_mask registers vary
* based on revision
*/
u32 dcsb_base; /* DCSB base bits */
u32 dcsm_mask; /* DCSM mask bits */
u32 num_dcsm; /* Number of DCSM registers */
u32 dcs_mask_notused; /* DCSM notused mask bits */
u32 dcs_shift; /* DCSB and DCSM shift value */
u64 top_mem; /* top of memory below 4GB */
u64 top_mem2; /* top of memory above 4GB */
u32 dram_ctl_select_low; /* DRAM Controller Select Low Reg */
u32 dram_ctl_select_high; /* DRAM Controller Select High Reg */
u32 online_spare; /* On-Line spare Reg */
/* temp storage for when input is received from sysfs */
struct amd64_error_info_regs ctl_error_info;
/* place to store error injection parameters prior to issue */
struct error_injection injection;
/* Save old hw registers' values before we modified them */
u32 nbctl_mcgctl_saved; /* When true, following 2 are valid */
u32 old_nbctl;
unsigned long old_mcgctl; /* per core on this node */
/* MC Type Index value: socket F vs Family 10h */
u32 mc_type_index;
/* misc settings */
struct flags {
unsigned long cf8_extcfg:1;
} flags;
};
struct scrubrate {
u32 scrubval; /* bit pattern for scrub rate */
u32 bandwidth; /* bandwidth consumed (bytes/sec) */
};
extern struct scrubrate scrubrates[23];
extern u32 revf_quad_ddr2_shift[16];
extern const char *tt_msgs[4];
extern const char *ll_msgs[4];
extern const char *rrrr_msgs[16];
extern const char *to_msgs[2];
extern const char *pp_msgs[4];
extern const char *ii_msgs[4];
extern const char *ext_msgs[32];
extern const char *htlink_msgs[8];
#ifdef CONFIG_EDAC_DEBUG
#define NUM_DBG_ATTRS 9
#else
#define NUM_DBG_ATTRS 0
#endif
#ifdef CONFIG_EDAC_AMD64_ERROR_INJECTION
#define NUM_INJ_ATTRS 5
#else
#define NUM_INJ_ATTRS 0
#endif
extern struct mcidev_sysfs_attribute amd64_dbg_attrs[NUM_DBG_ATTRS],
amd64_inj_attrs[NUM_INJ_ATTRS];
/*
* Each of the PCI Device IDs types have their own set of hardware accessor
* functions and per device encoding/decoding logic.
*/
struct low_ops {
int (*probe_valid_hardware)(struct amd64_pvt *pvt);
int (*early_channel_count)(struct amd64_pvt *pvt);
u64 (*get_error_address)(struct mem_ctl_info *mci,
struct amd64_error_info_regs *info);
void (*read_dram_base_limit)(struct amd64_pvt *pvt, int dram);
void (*read_dram_ctl_register)(struct amd64_pvt *pvt);
void (*map_sysaddr_to_csrow)(struct mem_ctl_info *mci,
struct amd64_error_info_regs *info,
u64 SystemAddr);
int (*dbam_map_to_pages)(struct amd64_pvt *pvt, int dram_map);
};
struct amd64_family_type {
const char *ctl_name;
u16 addr_f1_ctl;
u16 misc_f3_ctl;
struct low_ops ops;
};
static struct amd64_family_type amd64_family_types[];
static inline const char *get_amd_family_name(int index)
{
return amd64_family_types[index].ctl_name;
}
static inline struct low_ops *family_ops(int index)
{
return &amd64_family_types[index].ops;
}
/*
* For future CPU versions, verify the following as new 'slow' rates appear and
* modify the necessary skip values for the supported CPU.
*/
#define K8_MIN_SCRUB_RATE_BITS 0x0
#define F10_MIN_SCRUB_RATE_BITS 0x5
#define F11_MIN_SCRUB_RATE_BITS 0x6
int amd64_process_error_info(struct mem_ctl_info *mci,
struct amd64_error_info_regs *info,
int handle_errors);
int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base,
u64 *hole_offset, u64 *hole_size);
#include "amd64_edac.h"
/*
* accept a hex value and store it into the virtual error register file, field:
* nbeal and nbeah. Assume virtual error values have already been set for: NBSL,
* NBSH and NBCFG. Then proceed to map the error values to a MC, CSROW and
* CHANNEL
*/
static ssize_t amd64_nbea_store(struct mem_ctl_info *mci, const char *data,
size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long long value;
int ret = 0;
ret = strict_strtoull(data, 16, &value);
if (ret != -EINVAL) {
debugf0("received NBEA= 0x%llx\n", value);
/* place the value into the virtual error packet */
pvt->ctl_error_info.nbeal = (u32) value;
value >>= 32;
pvt->ctl_error_info.nbeah = (u32) value;
/* Process the Mapping request */
/* TODO: Add race prevention */
amd64_process_error_info(mci, &pvt->ctl_error_info, 1);
return count;
}
return ret;
}
/* display back what the last NBEA (MCA NB Address (MC4_ADDR)) was written */
static ssize_t amd64_nbea_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
u64 value;
value = pvt->ctl_error_info.nbeah;
value <<= 32;
value |= pvt->ctl_error_info.nbeal;
return sprintf(data, "%llx\n", value);
}
/* store the NBSL (MCA NB Status Low (MC4_STATUS)) value user desires */
static ssize_t amd64_nbsl_store(struct mem_ctl_info *mci, const char *data,
size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
int ret = 0;
ret = strict_strtoul(data, 16, &value);
if (ret != -EINVAL) {
debugf0("received NBSL= 0x%lx\n", value);
pvt->ctl_error_info.nbsl = (u32) value;
return count;
}
return ret;
}
/* display back what the last NBSL value written */
static ssize_t amd64_nbsl_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
u32 value;
value = pvt->ctl_error_info.nbsl;
return sprintf(data, "%x\n", value);
}
/* store the NBSH (MCA NB Status High) value user desires */
static ssize_t amd64_nbsh_store(struct mem_ctl_info *mci, const char *data,
size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
int ret = 0;
ret = strict_strtoul(data, 16, &value);
if (ret != -EINVAL) {
debugf0("received NBSH= 0x%lx\n", value);
pvt->ctl_error_info.nbsh = (u32) value;
return count;
}
return ret;
}
/* display back what the last NBSH value written */
static ssize_t amd64_nbsh_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
u32 value;
value = pvt->ctl_error_info.nbsh;
return sprintf(data, "%x\n", value);
}
/* accept and store the NBCFG (MCA NB Configuration) value user desires */
static ssize_t amd64_nbcfg_store(struct mem_ctl_info *mci,
const char *data, size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
int ret = 0;
ret = strict_strtoul(data, 16, &value);
if (ret != -EINVAL) {
debugf0("received NBCFG= 0x%lx\n", value);
pvt->ctl_error_info.nbcfg = (u32) value;
return count;
}
return ret;
}
/* various show routines for the controls of a MCI */
static ssize_t amd64_nbcfg_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%x\n", pvt->ctl_error_info.nbcfg);
}
static ssize_t amd64_dhar_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%x\n", pvt->dhar);
}
static ssize_t amd64_dbam_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%x\n", pvt->dbam0);
}
static ssize_t amd64_topmem_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%llx\n", pvt->top_mem);
}
static ssize_t amd64_topmem2_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%llx\n", pvt->top_mem2);
}
static ssize_t amd64_hole_show(struct mem_ctl_info *mci, char *data)
{
u64 hole_base = 0;
u64 hole_offset = 0;
u64 hole_size = 0;
amd64_get_dram_hole_info(mci, &hole_base, &hole_offset, &hole_size);
return sprintf(data, "%llx %llx %llx\n", hole_base, hole_offset,
hole_size);
}
/*
* update NUM_DBG_ATTRS in case you add new members
*/
struct mcidev_sysfs_attribute amd64_dbg_attrs[] = {
{
.attr = {
.name = "nbea_ctl",
.mode = (S_IRUGO | S_IWUSR)
},
.show = amd64_nbea_show,
.store = amd64_nbea_store,
},
{
.attr = {
.name = "nbsl_ctl",
.mode = (S_IRUGO | S_IWUSR)
},
.show = amd64_nbsl_show,
.store = amd64_nbsl_store,
},
{
.attr = {
.name = "nbsh_ctl",
.mode = (S_IRUGO | S_IWUSR)
},
.show = amd64_nbsh_show,
.store = amd64_nbsh_store,
},
{
.attr = {
.name = "nbcfg_ctl",
.mode = (S_IRUGO | S_IWUSR)
},
.show = amd64_nbcfg_show,
.store = amd64_nbcfg_store,
},
{
.attr = {
.name = "dhar",
.mode = (S_IRUGO)
},
.show = amd64_dhar_show,
.store = NULL,
},
{
.attr = {
.name = "dbam",
.mode = (S_IRUGO)
},
.show = amd64_dbam_show,
.store = NULL,
},
{
.attr = {
.name = "topmem",
.mode = (S_IRUGO)
},
.show = amd64_topmem_show,
.store = NULL,
},
{
.attr = {
.name = "topmem2",
.mode = (S_IRUGO)
},
.show = amd64_topmem2_show,
.store = NULL,
},
{
.attr = {
.name = "dram_hole",
.mode = (S_IRUGO)
},
.show = amd64_hole_show,
.store = NULL,
},
};
#include "amd64_edac.h"
/*
* See F2x80 for K8 and F2x[1,0]80 for Fam10 and later. The table below is only
* for DDR2 DRAM mapping.
*/
u32 revf_quad_ddr2_shift[] = {
0, /* 0000b NULL DIMM (128mb) */
28, /* 0001b 256mb */
29, /* 0010b 512mb */
29, /* 0011b 512mb */
29, /* 0100b 512mb */
30, /* 0101b 1gb */
30, /* 0110b 1gb */
31, /* 0111b 2gb */
31, /* 1000b 2gb */
32, /* 1001b 4gb */
32, /* 1010b 4gb */
33, /* 1011b 8gb */
0, /* 1100b future */
0, /* 1101b future */
0, /* 1110b future */
0 /* 1111b future */
};
/*
* Valid scrub rates for the K8 hardware memory scrubber. We map the scrubbing
* bandwidth to a valid bit pattern. The 'set' operation finds the 'matching-
* or higher value'.
*
*FIXME: Produce a better mapping/linearisation.
*/
struct scrubrate scrubrates[] = {
{ 0x01, 1600000000UL},
{ 0x02, 800000000UL},
{ 0x03, 400000000UL},
{ 0x04, 200000000UL},
{ 0x05, 100000000UL},
{ 0x06, 50000000UL},
{ 0x07, 25000000UL},
{ 0x08, 12284069UL},
{ 0x09, 6274509UL},
{ 0x0A, 3121951UL},
{ 0x0B, 1560975UL},
{ 0x0C, 781440UL},
{ 0x0D, 390720UL},
{ 0x0E, 195300UL},
{ 0x0F, 97650UL},
{ 0x10, 48854UL},
{ 0x11, 24427UL},
{ 0x12, 12213UL},
{ 0x13, 6101UL},
{ 0x14, 3051UL},
{ 0x15, 1523UL},
{ 0x16, 761UL},
{ 0x00, 0UL}, /* scrubbing off */
};
/*
* string representation for the different MCA reported error types, see F3x48
* or MSR0000_0411.
*/
const char *tt_msgs[] = { /* transaction type */
"instruction",
"data",
"generic",
"reserved"
};
const char *ll_msgs[] = { /* cache level */
"L0",
"L1",
"L2",
"L3/generic"
};
const char *rrrr_msgs[] = {
"generic",
"generic read",
"generic write",
"data read",
"data write",
"inst fetch",
"prefetch",
"evict",
"snoop",
"reserved RRRR= 9",
"reserved RRRR= 10",
"reserved RRRR= 11",
"reserved RRRR= 12",
"reserved RRRR= 13",
"reserved RRRR= 14",
"reserved RRRR= 15"
};
const char *pp_msgs[] = { /* participating processor */
"local node originated (SRC)",
"local node responded to request (RES)",
"local node observed as 3rd party (OBS)",
"generic"
};
const char *to_msgs[] = {
"no timeout",
"timed out"
};
const char *ii_msgs[] = { /* memory or i/o */
"mem access",
"reserved",
"i/o access",
"generic"
};
/* Map the 5 bits of Extended Error code to the string table. */
const char *ext_msgs[] = { /* extended error */
"K8 ECC error/F10 reserved", /* 0_0000b */
"CRC error", /* 0_0001b */
"sync error", /* 0_0010b */
"mst abort", /* 0_0011b */
"tgt abort", /* 0_0100b */
"GART error", /* 0_0101b */
"RMW error", /* 0_0110b */
"Wdog timer error", /* 0_0111b */
"F10-ECC/K8-Chipkill error", /* 0_1000b */
"DEV Error", /* 0_1001b */
"Link Data error", /* 0_1010b */
"Link or L3 Protocol error", /* 0_1011b */
"NB Array error", /* 0_1100b */
"DRAM Parity error", /* 0_1101b */
"Link Retry/GART Table Walk/DEV Table Walk error", /* 0_1110b */
"Res 0x0ff error", /* 0_1111b */
"Res 0x100 error", /* 1_0000b */
"Res 0x101 error", /* 1_0001b */
"Res 0x102 error", /* 1_0010b */
"Res 0x103 error", /* 1_0011b */
"Res 0x104 error", /* 1_0100b */
"Res 0x105 error", /* 1_0101b */
"Res 0x106 error", /* 1_0110b */
"Res 0x107 error", /* 1_0111b */
"Res 0x108 error", /* 1_1000b */
"Res 0x109 error", /* 1_1001b */
"Res 0x10A error", /* 1_1010b */
"Res 0x10B error", /* 1_1011b */
"L3 Cache Data error", /* 1_1100b */
"L3 CacheTag error", /* 1_1101b */
"L3 Cache LRU error", /* 1_1110b */
"Res 0x1FF error" /* 1_1111b */
};
const char *htlink_msgs[] = {
"none",
"1",
"2",
"1 2",
"3",
"1 3",
"2 3",
"1 2 3"
};
#include "amd64_edac.h"
/*
* store error injection section value which refers to one of 4 16-byte sections
* within a 64-byte cacheline
*
* range: 0..3
*/
static ssize_t amd64_inject_section_store(struct mem_ctl_info *mci,
const char *data, size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
int ret = 0;
ret = strict_strtoul(data, 10, &value);
if (ret != -EINVAL) {
pvt->injection.section = (u32) value;
return count;
}
return ret;
}
/*
* store error injection word value which refers to one of 9 16-bit word of the
* 16-byte (128-bit + ECC bits) section
*
* range: 0..8
*/
static ssize_t amd64_inject_word_store(struct mem_ctl_info *mci,
const char *data, size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
int ret = 0;
ret = strict_strtoul(data, 10, &value);
if (ret != -EINVAL) {
value = (value <= 8) ? value : 0;
pvt->injection.word = (u32) value;
return count;
}
return ret;
}
/*
* store 16 bit error injection vector which enables injecting errors to the
* corresponding bit within the error injection word above. When used during a
* DRAM ECC read, it holds the contents of the of the DRAM ECC bits.
*/
static ssize_t amd64_inject_ecc_vector_store(struct mem_ctl_info *mci,
const char *data, size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
int ret = 0;
ret = strict_strtoul(data, 16, &value);
if (ret != -EINVAL) {
pvt->injection.bit_map = (u32) value & 0xFFFF;
return count;
}
return ret;
}
/*
* Do a DRAM ECC read. Assemble staged values in the pvt area, format into
* fields needed by the injection registers and read the NB Array Data Port.
*/
static ssize_t amd64_inject_read_store(struct mem_ctl_info *mci,
const char *data, size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
u32 section, word_bits;
int ret = 0;
ret = strict_strtoul(data, 10, &value);
if (ret != -EINVAL) {
/* Form value to choose 16-byte section of cacheline */
section = F10_NB_ARRAY_DRAM_ECC |
SET_NB_ARRAY_ADDRESS(pvt->injection.section);
pci_write_config_dword(pvt->misc_f3_ctl,
F10_NB_ARRAY_ADDR, section);
word_bits = SET_NB_DRAM_INJECTION_READ(pvt->injection.word,
pvt->injection.bit_map);
/* Issue 'word' and 'bit' along with the READ request */
pci_write_config_dword(pvt->misc_f3_ctl,
F10_NB_ARRAY_DATA, word_bits);
debugf0("section=0x%x word_bits=0x%x\n", section, word_bits);
return count;
}
return ret;
}
/*
* Do a DRAM ECC write. Assemble staged values in the pvt area and format into
* fields needed by the injection registers.
*/
static ssize_t amd64_inject_write_store(struct mem_ctl_info *mci,
const char *data, size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
u32 section, word_bits;
int ret = 0;
ret = strict_strtoul(data, 10, &value);
if (ret != -EINVAL) {
/* Form value to choose 16-byte section of cacheline */
section = F10_NB_ARRAY_DRAM_ECC |
SET_NB_ARRAY_ADDRESS(pvt->injection.section);
pci_write_config_dword(pvt->misc_f3_ctl,
F10_NB_ARRAY_ADDR, section);
word_bits = SET_NB_DRAM_INJECTION_WRITE(pvt->injection.word,
pvt->injection.bit_map);
/* Issue 'word' and 'bit' along with the READ request */
pci_write_config_dword(pvt->misc_f3_ctl,
F10_NB_ARRAY_DATA, word_bits);
debugf0("section=0x%x word_bits=0x%x\n", section, word_bits);
return count;
}
return ret;
}
/*
* update NUM_INJ_ATTRS in case you add new members
*/
struct mcidev_sysfs_attribute amd64_inj_attrs[] = {
{
.attr = {
.name = "inject_section",
.mode = (S_IRUGO | S_IWUSR)
},
.show = NULL,
.store = amd64_inject_section_store,
},
{
.attr = {
.name = "inject_word",
.mode = (S_IRUGO | S_IWUSR)
},
.show = NULL,
.store = amd64_inject_word_store,
},
{
.attr = {
.name = "inject_ecc_vector",
.mode = (S_IRUGO | S_IWUSR)
},
.show = NULL,
.store = amd64_inject_ecc_vector_store,
},
{
.attr = {
.name = "inject_write",
.mode = (S_IRUGO | S_IWUSR)
},
.show = NULL,
.store = amd64_inject_write_store,
},
{
.attr = {
.name = "inject_read",
.mode = (S_IRUGO | S_IWUSR)
},
.show = NULL,
.store = amd64_inject_read_store,
},
};
......@@ -76,10 +76,11 @@
extern int edac_debug_level;
#ifndef CONFIG_EDAC_DEBUG_VERBOSE
#define edac_debug_printk(level, fmt, arg...) \
do { \
if (level <= edac_debug_level) \
edac_printk(KERN_DEBUG, EDAC_DEBUG, fmt, ##arg); \
#define edac_debug_printk(level, fmt, arg...) \
do { \
if (level <= edac_debug_level) \
edac_printk(KERN_DEBUG, EDAC_DEBUG, \
"%s: " fmt, __func__, ##arg); \
} while (0)
#else /* CONFIG_EDAC_DEBUG_VERBOSE */
#define edac_debug_printk(level, fmt, arg...) \
......
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