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-rw-r--r--arch/x86/kernel/cpu/mcheck/mce.c1
-rw-r--r--drivers/edac/Kconfig8
-rw-r--r--drivers/edac/amd64_edac.c213
-rw-r--r--drivers/edac/amd64_edac.h48
-rw-r--r--drivers/edac/e752x_edac.c4
-rw-r--r--drivers/edac/edac_core.h17
-rw-r--r--drivers/edac/edac_mc_sysfs.c86
-rw-r--r--drivers/edac/edac_mce_amd.c16
-rw-r--r--drivers/edac/i5100_edac.c7
9 files changed, 121 insertions, 279 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 18cc4256225..1970ef911c9 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -600,6 +600,7 @@ void machine_check_poll(enum mcp_flags flags, mce_banks_t *b)
*/
if (!(flags & MCP_DONTLOG) && !mce_dont_log_ce) {
mce_log(&m);
+ atomic_notifier_call_chain(&x86_mce_decoder_chain, 0, &m);
add_taint(TAINT_MACHINE_CHECK);
}
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 0d2f9dbb47e..70bb350de99 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -39,14 +39,6 @@ config EDAC_DEBUG
there're four debug levels (x=0,1,2,3 from low to high).
Usually you should select 'N'.
-config EDAC_DEBUG_VERBOSE
- bool "More verbose debugging"
- depends on EDAC_DEBUG
- help
- This option makes debugging information more verbose.
- Source file name and line number where debugging message
- printed will be added to debugging message.
-
config EDAC_DECODE_MCE
tristate "Decode MCEs in human-readable form (only on AMD for now)"
depends on CPU_SUP_AMD && X86_MCE
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index ac9f7985096..670239ab751 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -160,7 +160,7 @@ static int amd64_search_set_scrub_rate(struct pci_dev *ctl, u32 new_bw,
return 0;
}
-static int amd64_set_scrub_rate(struct mem_ctl_info *mci, u32 *bandwidth)
+static int amd64_set_scrub_rate(struct mem_ctl_info *mci, u32 bandwidth)
{
struct amd64_pvt *pvt = mci->pvt_info;
u32 min_scrubrate = 0x0;
@@ -178,10 +178,10 @@ static int amd64_set_scrub_rate(struct mem_ctl_info *mci, u32 *bandwidth)
default:
amd64_printk(KERN_ERR, "Unsupported family!\n");
- break;
+ return -EINVAL;
}
- return amd64_search_set_scrub_rate(pvt->misc_f3_ctl, *bandwidth,
- min_scrubrate);
+ return amd64_search_set_scrub_rate(pvt->misc_f3_ctl, bandwidth,
+ min_scrubrate);
}
static int amd64_get_scrub_rate(struct mem_ctl_info *mci, u32 *bw)
@@ -796,6 +796,11 @@ static int sys_addr_to_csrow(struct mem_ctl_info *mci, u64 sys_addr)
static int get_channel_from_ecc_syndrome(struct mem_ctl_info *, u16);
+static u16 extract_syndrome(struct err_regs *err)
+{
+ return ((err->nbsh >> 15) & 0xff) | ((err->nbsl >> 16) & 0xff00);
+}
+
static void amd64_cpu_display_info(struct amd64_pvt *pvt)
{
if (boot_cpu_data.x86 == 0x11)
@@ -888,6 +893,9 @@ static void amd64_dump_misc_regs(struct amd64_pvt *pvt)
return;
}
+ amd64_printk(KERN_INFO, "using %s syndromes.\n",
+ ((pvt->syn_type == 8) ? "x8" : "x4"));
+
/* Only if NOT ganged does dclr1 have valid info */
if (!dct_ganging_enabled(pvt))
amd64_dump_dramcfg_low(pvt->dclr1, 1);
@@ -1101,20 +1109,17 @@ static void k8_read_dram_base_limit(struct amd64_pvt *pvt, int dram)
}
static void k8_map_sysaddr_to_csrow(struct mem_ctl_info *mci,
- struct err_regs *info,
- u64 sys_addr)
+ struct err_regs *err_info, u64 sys_addr)
{
struct mem_ctl_info *src_mci;
- unsigned short syndrome;
int channel, csrow;
u32 page, offset;
+ u16 syndrome;
- /* Extract the syndrome parts and form a 16-bit syndrome */
- syndrome = HIGH_SYNDROME(info->nbsl) << 8;
- syndrome |= LOW_SYNDROME(info->nbsh);
+ syndrome = extract_syndrome(err_info);
/* CHIPKILL enabled */
- if (info->nbcfg & K8_NBCFG_CHIPKILL) {
+ if (err_info->nbcfg & K8_NBCFG_CHIPKILL) {
channel = get_channel_from_ecc_syndrome(mci, syndrome);
if (channel < 0) {
/*
@@ -1123,8 +1128,8 @@ static void k8_map_sysaddr_to_csrow(struct mem_ctl_info *mci,
* as suspect.
*/
amd64_mc_printk(mci, KERN_WARNING,
- "unknown syndrome 0x%x - possible error "
- "reporting race\n", syndrome);
+ "unknown syndrome 0x%04x - possible "
+ "error reporting race\n", syndrome);
edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR);
return;
}
@@ -1430,7 +1435,7 @@ static inline u64 f10_get_base_addr_offset(u64 sys_addr, int hi_range_sel,
u64 chan_off;
if (hi_range_sel) {
- if (!(dct_sel_base_addr & 0xFFFFF800) &&
+ if (!(dct_sel_base_addr & 0xFFFF0000) &&
hole_valid && (sys_addr >= 0x100000000ULL))
chan_off = hole_off << 16;
else
@@ -1654,13 +1659,13 @@ static int f10_translate_sysaddr_to_cs(struct amd64_pvt *pvt, u64 sys_addr,
* (MCX_ADDR).
*/
static void f10_map_sysaddr_to_csrow(struct mem_ctl_info *mci,
- struct err_regs *info,
+ struct err_regs *err_info,
u64 sys_addr)
{
struct amd64_pvt *pvt = mci->pvt_info;
u32 page, offset;
- unsigned short syndrome;
int nid, csrow, chan = 0;
+ u16 syndrome;
csrow = f10_translate_sysaddr_to_cs(pvt, sys_addr, &nid, &chan);
@@ -1671,15 +1676,14 @@ static void f10_map_sysaddr_to_csrow(struct mem_ctl_info *mci,
error_address_to_page_and_offset(sys_addr, &page, &offset);
- syndrome = HIGH_SYNDROME(info->nbsl) << 8;
- syndrome |= LOW_SYNDROME(info->nbsh);
+ syndrome = extract_syndrome(err_info);
/*
* We need the syndromes for channel detection only when we're
* ganged. Otherwise @chan should already contain the channel at
* this point.
*/
- if (dct_ganging_enabled(pvt) && pvt->nbcfg & K8_NBCFG_CHIPKILL)
+ if (dct_ganging_enabled(pvt) && (pvt->nbcfg & K8_NBCFG_CHIPKILL))
chan = get_channel_from_ecc_syndrome(mci, syndrome);
if (chan >= 0)
@@ -1878,7 +1882,7 @@ static u16 x8_vectors[] = {
};
static int decode_syndrome(u16 syndrome, u16 *vectors, int num_vecs,
- int v_dim)
+ int v_dim)
{
unsigned int i, err_sym;
@@ -1955,124 +1959,23 @@ static int map_err_sym_to_channel(int err_sym, int sym_size)
static int get_channel_from_ecc_syndrome(struct mem_ctl_info *mci, u16 syndrome)
{
struct amd64_pvt *pvt = mci->pvt_info;
- u32 value = 0;
- int err_sym = 0;
-
- if (boot_cpu_data.x86 == 0x10) {
-
- amd64_read_pci_cfg(pvt->misc_f3_ctl, 0x180, &value);
-
- /* F3x180[EccSymbolSize]=1 => x8 symbols */
- if (boot_cpu_data.x86_model > 7 &&
- value & BIT(25)) {
- err_sym = decode_syndrome(syndrome, x8_vectors,
- ARRAY_SIZE(x8_vectors), 8);
- return map_err_sym_to_channel(err_sym, 8);
- }
+ int err_sym = -1;
+
+ if (pvt->syn_type == 8)
+ err_sym = decode_syndrome(syndrome, x8_vectors,
+ ARRAY_SIZE(x8_vectors),
+ pvt->syn_type);
+ else if (pvt->syn_type == 4)
+ err_sym = decode_syndrome(syndrome, x4_vectors,
+ ARRAY_SIZE(x4_vectors),
+ pvt->syn_type);
+ else {
+ amd64_printk(KERN_WARNING, "%s: Illegal syndrome type: %u\n",
+ __func__, pvt->syn_type);
+ return err_sym;
}
- err_sym = decode_syndrome(syndrome, x4_vectors, ARRAY_SIZE(x4_vectors), 4);
- return map_err_sym_to_channel(err_sym, 4);
-}
-
-/*
- * Check for valid error in the NB Status High register. If so, proceed to read
- * NB Status Low, NB Address Low and NB Address High registers and store data
- * into error structure.
- *
- * Returns:
- * - 1: if hardware regs contains valid error info
- * - 0: if no valid error is indicated
- */
-static int amd64_get_error_info_regs(struct mem_ctl_info *mci,
- struct err_regs *regs)
-{
- struct amd64_pvt *pvt;
- struct pci_dev *misc_f3_ctl;
-
- pvt = mci->pvt_info;
- misc_f3_ctl = pvt->misc_f3_ctl;
-
- if (amd64_read_pci_cfg(misc_f3_ctl, K8_NBSH, &regs->nbsh))
- return 0;
-
- if (!(regs->nbsh & K8_NBSH_VALID_BIT))
- return 0;
-
- /* valid error, read remaining error information registers */
- if (amd64_read_pci_cfg(misc_f3_ctl, K8_NBSL, &regs->nbsl) ||
- amd64_read_pci_cfg(misc_f3_ctl, K8_NBEAL, &regs->nbeal) ||
- amd64_read_pci_cfg(misc_f3_ctl, K8_NBEAH, &regs->nbeah) ||
- amd64_read_pci_cfg(misc_f3_ctl, K8_NBCFG, &regs->nbcfg))
- return 0;
-
- return 1;
-}
-
-/*
- * This function is called to retrieve the error data from hardware and store it
- * in the info structure.
- *
- * Returns:
- * - 1: if a valid error is found
- * - 0: if no error is found
- */
-static int amd64_get_error_info(struct mem_ctl_info *mci,
- struct err_regs *info)
-{
- struct amd64_pvt *pvt;
- struct err_regs regs;
-
- pvt = mci->pvt_info;
-
- if (!amd64_get_error_info_regs(mci, info))
- return 0;
-
- /*
- * Here's the problem with the K8's EDAC reporting: There are four
- * registers which report pieces of error information. They are shared
- * between CEs and UEs. Furthermore, contrary to what is stated in the
- * BKDG, the overflow bit is never used! Every error always updates the
- * reporting registers.
- *
- * Can you see the race condition? All four error reporting registers
- * must be read before a new error updates them! There is no way to read
- * all four registers atomically. The best than can be done is to detect
- * that a race has occured and then report the error without any kind of
- * precision.
- *
- * What is still positive is that errors are still reported and thus
- * problems can still be detected - just not localized because the
- * syndrome and address are spread out across registers.
- *
- * Grrrrr!!!!! Here's hoping that AMD fixes this in some future K8 rev.
- * UEs and CEs should have separate register sets with proper overflow
- * bits that are used! At very least the problem can be fixed by
- * honoring the ErrValid bit in 'nbsh' and not updating registers - just
- * set the overflow bit - unless the current error is CE and the new
- * error is UE which would be the only situation for overwriting the
- * current values.
- */
-
- regs = *info;
-
- /* Use info from the second read - most current */
- if (unlikely(!amd64_get_error_info_regs(mci, info)))
- return 0;
- /* clear the error bits in hardware */
- pci_write_bits32(pvt->misc_f3_ctl, K8_NBSH, 0, K8_NBSH_VALID_BIT);
-
- /* Check for the possible race condition */
- if ((regs.nbsh != info->nbsh) ||
- (regs.nbsl != info->nbsl) ||
- (regs.nbeah != info->nbeah) ||
- (regs.nbeal != info->nbeal)) {
- amd64_mc_printk(mci, KERN_WARNING,
- "hardware STATUS read access race condition "
- "detected!\n");
- return 0;
- }
- return 1;
+ return map_err_sym_to_channel(err_sym, pvt->syn_type);
}
/*
@@ -2177,7 +2080,7 @@ static inline void __amd64_decode_bus_error(struct mem_ctl_info *mci,
* catastrophic.
*/
if (info->nbsh & K8_NBSH_OVERFLOW)
- edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR "Error Overflow");
+ edac_mc_handle_ce_no_info(mci, EDAC_MOD_STR " Error Overflow");
}
void amd64_decode_bus_error(int node_id, struct err_regs *regs)
@@ -2199,20 +2102,6 @@ void amd64_decode_bus_error(int node_id, struct err_regs *regs)
}
/*
- * The main polling 'check' function, called FROM the edac core to perform the
- * error checking and if an error is encountered, error processing.
- */
-static void amd64_check(struct mem_ctl_info *mci)
-{
- struct err_regs regs;
-
- if (amd64_get_error_info(mci, &regs)) {
- struct amd64_pvt *pvt = mci->pvt_info;
- amd_decode_nb_mce(pvt->mc_node_id, &regs, 1);
- }
-}
-
-/*
* Input:
* 1) struct amd64_pvt which contains pvt->dram_f2_ctl pointer
* 2) AMD Family index value
@@ -2284,6 +2173,7 @@ static void amd64_free_mc_sibling_devices(struct amd64_pvt *pvt)
static void amd64_read_mc_registers(struct amd64_pvt *pvt)
{
u64 msr_val;
+ u32 tmp;
int dram;
/*
@@ -2349,10 +2239,22 @@ static void amd64_read_mc_registers(struct amd64_pvt *pvt)
amd64_read_pci_cfg(pvt->dram_f2_ctl, F10_DCLR_0, &pvt->dclr0);
amd64_read_pci_cfg(pvt->dram_f2_ctl, F10_DCHR_0, &pvt->dchr0);
- if (!dct_ganging_enabled(pvt) && boot_cpu_data.x86 >= 0x10) {
- amd64_read_pci_cfg(pvt->dram_f2_ctl, F10_DCLR_1, &pvt->dclr1);
- amd64_read_pci_cfg(pvt->dram_f2_ctl, F10_DCHR_1, &pvt->dchr1);
+ if (boot_cpu_data.x86 >= 0x10) {
+ if (!dct_ganging_enabled(pvt)) {
+ amd64_read_pci_cfg(pvt->dram_f2_ctl, F10_DCLR_1, &pvt->dclr1);
+ amd64_read_pci_cfg(pvt->dram_f2_ctl, F10_DCHR_1, &pvt->dchr1);
+ }
+ amd64_read_pci_cfg(pvt->misc_f3_ctl, EXT_NB_MCA_CFG, &tmp);
}
+
+ if (boot_cpu_data.x86 == 0x10 &&
+ boot_cpu_data.x86_model > 7 &&
+ /* F3x180[EccSymbolSize]=1 => x8 symbols */
+ tmp & BIT(25))
+ pvt->syn_type = 8;
+ else
+ pvt->syn_type = 4;
+
amd64_dump_misc_regs(pvt);
}
@@ -2739,9 +2641,6 @@ static void amd64_setup_mci_misc_attributes(struct mem_ctl_info *mci)
mci->dev_name = pci_name(pvt->dram_f2_ctl);
mci->ctl_page_to_phys = NULL;
- /* IMPORTANT: Set the polling 'check' function in this module */
- mci->edac_check = amd64_check;
-
/* memory scrubber interface */
mci->set_sdram_scrub_rate = amd64_set_scrub_rate;
mci->get_sdram_scrub_rate = amd64_get_scrub_rate;
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 0d4bf563824..613b9381e71 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -244,44 +244,17 @@
#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 dct_sel_baseaddr(pvt) ((pvt->dram_ctl_select_low) & 0xFFFFF800)
+#define dct_sel_interleave_addr(pvt) (((pvt->dram_ctl_select_low) >> 6) & 0x3)
+#define dct_high_range_enabled(pvt) (pvt->dram_ctl_select_low & BIT(0))
+#define dct_interleave_enabled(pvt) (pvt->dram_ctl_select_low & BIT(2))
+#define dct_ganging_enabled(pvt) (pvt->dram_ctl_select_low & BIT(4))
+#define dct_data_intlv_enabled(pvt) (pvt->dram_ctl_select_low & BIT(5))
+#define dct_dram_enabled(pvt) (pvt->dram_ctl_select_low & BIT(8))
+#define dct_memory_cleared(pvt) (pvt->dram_ctl_select_low & BIT(10))
#define F10_DCTL_SEL_HIGH 0x114
-
/*
* Function 3 - Misc Control
*/
@@ -382,6 +355,8 @@ enum {
#define K8_NBCAP_SECDED BIT(3)
#define K8_NBCAP_DCT_DUAL BIT(0)
+#define EXT_NB_MCA_CFG 0x180
+
/* MSRs */
#define K8_MSR_MCGCTL_NBE BIT(4)
@@ -471,6 +446,9 @@ struct amd64_pvt {
u32 dram_ctl_select_high; /* DRAM Controller Select High Reg */
u32 online_spare; /* On-Line spare Reg */
+ /* x4 or x8 syndromes in use */
+ u8 syn_type;
+
/* temp storage for when input is received from sysfs */
struct err_regs ctl_error_info;
diff --git a/drivers/edac/e752x_edac.c b/drivers/edac/e752x_edac.c
index ae3f80c5419..073f5a06d23 100644
--- a/drivers/edac/e752x_edac.c
+++ b/drivers/edac/e752x_edac.c
@@ -958,7 +958,7 @@ static void e752x_check(struct mem_ctl_info *mci)
}
/* Program byte/sec bandwidth scrub rate to hardware */
-static int set_sdram_scrub_rate(struct mem_ctl_info *mci, u32 *new_bw)
+static int set_sdram_scrub_rate(struct mem_ctl_info *mci, u32 new_bw)
{
const struct scrubrate *scrubrates;
struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info;
@@ -975,7 +975,7 @@ static int set_sdram_scrub_rate(struct mem_ctl_info *mci, u32 *new_bw)
* desired rate and program the cooresponding register value.
*/
for (i = 0; scrubrates[i].bandwidth != SDRATE_EOT; i++)
- if (scrubrates[i].bandwidth >= *new_bw)
+ if (scrubrates[i].bandwidth >= new_bw)
break;
if (scrubrates[i].bandwidth == SDRATE_EOT)
diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index efca9343d26..ce7146677e9 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -49,21 +49,15 @@
#define edac_printk(level, prefix, fmt, arg...) \
printk(level "EDAC " prefix ": " fmt, ##arg)
-#define edac_printk_verbose(level, prefix, fmt, arg...) \
- printk(level "EDAC " prefix ": " "in %s, line at %d: " fmt, \
- __FILE__, __LINE__, ##arg)
-
#define edac_mc_printk(mci, level, fmt, arg...) \
printk(level "EDAC MC%d: " fmt, mci->mc_idx, ##arg)
#define edac_mc_chipset_printk(mci, level, prefix, fmt, arg...) \
printk(level "EDAC " prefix " MC%d: " fmt, mci->mc_idx, ##arg)
-/* edac_device printk */
#define edac_device_printk(ctl, level, fmt, arg...) \
printk(level "EDAC DEVICE%d: " fmt, ctl->dev_idx, ##arg)
-/* edac_pci printk */
#define edac_pci_printk(ctl, level, fmt, arg...) \
printk(level "EDAC PCI%d: " fmt, ctl->pci_idx, ##arg)
@@ -76,21 +70,12 @@
extern int edac_debug_level;
extern const char *edac_mem_types[];
-#ifndef CONFIG_EDAC_DEBUG_VERBOSE
#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...) \
- do { \
- if (level <= edac_debug_level) \
- edac_printk_verbose(KERN_DEBUG, EDAC_DEBUG, fmt, \
- ##arg); \
- } while (0)
-#endif
#define debugf0( ... ) edac_debug_printk(0, __VA_ARGS__ )
#define debugf1( ... ) edac_debug_printk(1, __VA_ARGS__ )
@@ -393,7 +378,7 @@ struct mem_ctl_info {
internal representation and configures whatever else needs
to be configured.
*/
- int (*set_sdram_scrub_rate) (struct mem_ctl_info * mci, u32 * bw);
+ int (*set_sdram_scrub_rate) (struct mem_ctl_info * mci, u32 bw);
/* Get the current sdram memory scrub rate from the internal
representation and converts it to the closest matching
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index c200c2fd43e..8aad94d10c0 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -124,19 +124,6 @@ static const char *edac_caps[] = {
[EDAC_S16ECD16ED] = "S16ECD16ED"
};
-
-
-static ssize_t memctrl_int_store(void *ptr, const char *buffer, size_t count)
-{
- int *value = (int *)ptr;
-
- if (isdigit(*buffer))
- *value = simple_strtoul(buffer, NULL, 0);
-
- return count;
-}
-
-
/* EDAC sysfs CSROW data structures and methods
*/
@@ -450,53 +437,54 @@ static ssize_t mci_reset_counters_store(struct mem_ctl_info *mci,
/* memory scrubbing */
static ssize_t mci_sdram_scrub_rate_store(struct mem_ctl_info *mci,
- const char *data, size_t count)
+ const char *data, size_t count)
{
- u32 bandwidth = -1;
+ unsigned long bandwidth = 0;
+ int err;
- if (mci->set_sdram_scrub_rate) {
+ if (!mci->set_sdram_scrub_rate) {
+ edac_printk(KERN_WARNING, EDAC_MC,
+ "Memory scrub rate setting not implemented!\n");
+ return -EINVAL;
+ }
- memctrl_int_store(&bandwidth, data, count);
+ if (strict_strtoul(data, 10, &bandwidth) < 0)
+ return -EINVAL;
- if (!(*mci->set_sdram_scrub_rate) (mci, &bandwidth)) {
- edac_printk(KERN_DEBUG, EDAC_MC,
- "Scrub rate set successfully, applied: %d\n",
- bandwidth);
- } else {
- /* FIXME: error codes maybe? */
- edac_printk(KERN_DEBUG, EDAC_MC,
- "Scrub rate set FAILED, could not apply: %d\n",
- bandwidth);
- }
- } else {
- /* FIXME: produce "not implemented" ERROR for user-side. */
- edac_printk(KERN_WARNING, EDAC_MC,
- "Memory scrubbing 'set'control is not implemented!\n");
+ err = mci->set_sdram_scrub_rate(mci, (u32)bandwidth);
+ if (err) {
+ edac_printk(KERN_DEBUG, EDAC_MC,
+ "Failed setting scrub rate to %lu\n", bandwidth);
+ return -EINVAL;
+ }
+ else {
+ edac_printk(KERN_DEBUG, EDAC_MC,
+ "Scrub rate set to: %lu\n", bandwidth);
+ return count;
}
- return count;
}
static ssize_t mci_sdram_scrub_rate_show(struct mem_ctl_info *mci, char *data)
{
- u32 bandwidth = -1;
-
- if (mci->get_sdram_scrub_rate) {
- if (!(*mci->get_sdram_scrub_rate) (mci, &bandwidth)) {
- edac_printk(KERN_DEBUG, EDAC_MC,
- "Scrub rate successfully, fetched: %d\n",
- bandwidth);
- } else {
- /* FIXME: error codes maybe? */
- edac_printk(KERN_DEBUG, EDAC_MC,
- "Scrub rate fetch FAILED, got: %d\n",
- bandwidth);
- }
- } else {
- /* FIXME: produce "not implemented" ERROR for user-side. */
+ u32 bandwidth = 0;
+ int err;
+
+ if (!mci->get_sdram_scrub_rate) {
edac_printk(KERN_WARNING, EDAC_MC,
- "Memory scrubbing 'get' control is not implemented\n");
+ "Memory scrub rate reading not implemented\n");
+ return -EINVAL;
+ }
+
+ err = mci->get_sdram_scrub_rate(mci, &bandwidth);
+ if (err) {
+ edac_printk(KERN_DEBUG, EDAC_MC, "Error reading scrub rate\n");
+ return err;
+ }
+ else {
+ edac_printk(KERN_DEBUG, EDAC_MC,
+ "Read scrub rate: %d\n", bandwidth);
+ return sprintf(data, "%d\n", bandwidth);
}
- return sprintf(data, "%d\n", bandwidth);
}
/* default attribute files for the MCI object */
diff --git a/drivers/edac/edac_mce_amd.c b/drivers/edac/edac_mce_amd.c
index 97e64bcdbc0..bae9351e947 100644
--- a/drivers/edac/edac_mce_amd.c
+++ b/drivers/edac/edac_mce_amd.c
@@ -133,7 +133,7 @@ static void amd_decode_dc_mce(u64 mc0_status)
u32 ec = mc0_status & 0xffff;
u32 xec = (mc0_status >> 16) & 0xf;
- pr_emerg(" Data Cache Error");
+ pr_emerg("Data Cache Error");
if (xec == 1 && TLB_ERROR(ec))
pr_cont(": %s TLB multimatch.\n", LL_MSG(ec));
@@ -176,7 +176,7 @@ static void amd_decode_ic_mce(u64 mc1_status)
u32 ec = mc1_status & 0xffff;
u32 xec = (mc1_status >> 16) & 0xf;
- pr_emerg(" Instruction Cache Error");
+ pr_emerg("Instruction Cache Error");
if (xec == 1 && TLB_ERROR(ec))
pr_cont(": %s TLB multimatch.\n", LL_MSG(ec));
@@ -233,7 +233,7 @@ static void amd_decode_bu_mce(u64 mc2_status)
u32 ec = mc2_status & 0xffff;
u32 xec = (mc2_status >> 16) & 0xf;
- pr_emerg(" Bus Unit Error");
+ pr_emerg("Bus Unit Error");
if (xec == 0x1)
pr_cont(" in the write data buffers.\n");
@@ -275,7 +275,7 @@ static void amd_decode_ls_mce(u64 mc3_status)
u32 ec = mc3_status & 0xffff;
u32 xec = (mc3_status >> 16) & 0xf;
- pr_emerg(" Load Store Error");
+ pr_emerg("Load Store Error");
if (xec == 0x0) {
u8 rrrr = (ec >> 4) & 0xf;
@@ -304,7 +304,7 @@ void amd_decode_nb_mce(int node_id, struct err_regs *regs, int handle_errors)
if (TLB_ERROR(ec) && !report_gart_errors)
return;
- pr_emerg(" Northbridge Error, node %d", node_id);
+ pr_emerg("Northbridge Error, node %d", node_id);
/*
* F10h, revD can disable ErrCpu[3:0] so check that first and also the
@@ -342,13 +342,13 @@ static void amd_decode_fr_mce(u64 mc5_status)
static inline void amd_decode_err_code(unsigned int ec)
{
if (TLB_ERROR(ec)) {
- pr_emerg(" Transaction: %s, Cache Level %s\n",
+ pr_emerg("Transaction: %s, Cache Level %s\n",
TT_MSG(ec), LL_MSG(ec));
} else if (MEM_ERROR(ec)) {
- pr_emerg(" Transaction: %s, Type: %s, Cache Level: %s",
+ pr_emerg("Transaction: %s, Type: %s, Cache Level: %s",
RRRR_MSG(ec), TT_MSG(ec), LL_MSG(ec));
} else if (BUS_ERROR(ec)) {
- pr_emerg(" Transaction type: %s(%s), %s, Cache Level: %s, "
+ pr_emerg("Transaction type: %s(%s), %s, Cache Level: %s, "
"Participating Processor: %s\n",
RRRR_MSG(ec), II_MSG(ec), TO_MSG(ec), LL_MSG(ec),
PP_MSG(ec));
diff --git a/drivers/edac/i5100_edac.c b/drivers/edac/i5100_edac.c
index ee9753cf362..f459a6c0886 100644
--- a/drivers/edac/i5100_edac.c
+++ b/drivers/edac/i5100_edac.c
@@ -589,14 +589,13 @@ static void i5100_refresh_scrubbing(struct work_struct *work)
/*
* The bandwidth is based on experimentation, feel free to refine it.
*/
-static int i5100_set_scrub_rate(struct mem_ctl_info *mci,
- u32 *bandwidth)
+static int i5100_set_scrub_rate(struct mem_ctl_info *mci, u32 bandwidth)
{
struct i5100_priv *priv = mci->pvt_info;
u32 dw;
pci_read_config_dword(priv->mc, I5100_MC, &dw);
- if (*bandwidth) {
+ if (bandwidth) {
priv->scrub_enable = 1;
dw |= I5100_MC_SCRBEN_MASK;
schedule_delayed_work(&(priv->i5100_scrubbing),
@@ -610,7 +609,7 @@ static int i5100_set_scrub_rate(struct mem_ctl_info *mci,
pci_read_config_dword(priv->mc, I5100_MC, &dw);
- *bandwidth = 5900000 * i5100_mc_scrben(dw);
+ bandwidth = 5900000 * i5100_mc_scrben(dw);
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-23 07:47:50 +0000