From: John Jacques <john.jacq...@lsi.com>
When memory is not re-initialized during a reset, some of the
unmonitored bits stay set and cause the interrupt handler to be
unable to clear interrupts.
Signed-off-by: John Jacques <john.jacq...@lsi.com>
---
drivers/misc/lsi-smmon.c | 56 ++++++++++++++++++++++++++++--------------------
1 file changed, 33 insertions(+), 23 deletions(-)
diff --git a/drivers/misc/lsi-smmon.c b/drivers/misc/lsi-smmon.c
index 5e859db..33c52cf 100644
--- a/drivers/misc/lsi-smmon.c
+++ b/drivers/misc/lsi-smmon.c
@@ -23,7 +23,7 @@
#error "Only AXM55xx is Supported At Present!"
#endif
-static int log=1;
+static int log = 1;
module_param(log, int, 0755);
MODULE_PARM_DESC(log, "Log each error on the console.");
@@ -33,28 +33,28 @@ MODULE_PARM_DESC(log, "Log each error on the console.");
Bit [24] = The software-initiated control word write has completed.
Bit [23] = The user-initiated DLL resync has completed.
Bit [22] = A state change has been detected on the dfi_init_complete signal
- after initialization.
+ after initialization.
Bit [21] = The assertion of the INHIBIT_DRAM_CMD parameter has successfully
- inhibited the command queue.
+ inhibited the command queue.
Bit [20] = The register interface-initiated mode register write has completed
- and another mode register write may be issued.
+ and another mode register write may be issued.
Bit [19] = A parity error has been detected on the address/control bus on a
- registered DIMM.
+ registered DIMM.
Bit [18] = The leveling operation has completed.
Bit [17] = A leveling operation has been requested.
Bit [16] = A DFI update error has occurred. Error information can be found in
- the UPDATE_ERROR_STATUS parameter.
+ the UPDATE_ERROR_STATUS parameter.
Bit [15] = A write leveling error has occurred. Error information can be
found
- in the WRLVL_ERROR_STATUS parameter.
+ in the WRLVL_ERROR_STATUS parameter.
Bit [14] = A read leveling gate training error has occurred. Error
information
- can be found in the RDLVL_ERROR_STATUS parameter.
+ can be found in the RDLVL_ERROR_STATUS parameter.
Bit [13] = A read leveling error has occurred. Error information can be found
- in the RDLVL_ERROR_STATUS parameter.
+ in the RDLVL_ERROR_STATUS parameter.
Bit [12] = The user has programmed an invalid setting associated with user
- words per burst. Examples: Setting param_reduc when burst
- length = 2. A 1:2 MC:PHY clock ratio with burst length = 2.
+ words per burst. Examples: Setting param_reduc when burst
+ length = 2. A 1:2 MC:PHY clock ratio with burst length = 2.
Bit [11] = A wrap cycle crossing a DRAM page has been detected. This is
- unsupported & may result in memory data corruption.
+ unsupported & may result in memory data corruption.
Bit [10] = The BIST operation has been completed.
Bit [09] = The low power operation has been completed.
Bit [08] = The MC initialization has been completed.
@@ -64,9 +64,9 @@ MODULE_PARM_DESC(log, "Log each error on the console.");
Bit [04] = Multiple correctable ECC events have been detected.
Bit [03] = A correctable ECC event has been detected.
Bit [02] = Multiple accesses outside the defined PHYSICAL memory space have
- occurred.
+ occurred.
Bit [01] = A memory access outside the defined PHYSICAL memory space has
- occurred.
+ occurred.
Bit [00] = The memory reset is valid on the DFI bus.
Of these, 1, 2, 3, 4, 5, 6, 7, 11, and 19 are of interest.
@@ -202,15 +202,15 @@ smmon_read_proc(char *page, char **start, off_t offset,
int count,
length = sprintf(page,
"------------ Counts for SM0/SM1 ----------\n"
- " Illegal Access: %lu/%lu\n"
- " Multiple Illegal Accesses: %lu/%lu\n"
- " Correctable ECC Error: %lu/%lu\n"
+ " Illegal Access: %lu/%lu\n"
+ " Multiple Illegal Accesses: %lu/%lu\n"
+ " Correctable ECC Error: %lu/%lu\n"
" Multiple Correctable ECC Errors: %lu/%lu\n"
- " Uncorrectable ECC Error: %lu/%lu\n"
+ " Uncorrectable ECC Error: %lu/%lu\n"
"Multiple Uncorrectable ECC Errors: %lu/%lu\n"
- " Port Errors: %lu/%lu\n"
- " Wrap Errors: %lu/%lu\n"
- " Parity Errors: %lu/%lu\n",
+ " Port Errors: %lu/%lu\n"
+ " Wrap Errors: %lu/%lu\n"
+ " Parity Errors: %lu/%lu\n",
counts.illegal_access[0],
counts.illegal_access[1],
counts.multiple_illegal_access[0],
@@ -245,17 +245,27 @@ smmon_read_proc(char *page, char **start, off_t offset,
int count,
*/
/*
-
-------------------------------------------------------------------------------
+
------------------------------------------------------------------------------
smmon_init
*/
static int __init smmon_init(void)
{
int rc;
+ int mask;
printk("smmon: log=%d\n", log);
create_proc_read_entry("smmon", 0, NULL, smmon_read_proc, NULL);
memset(&counts, 0, sizeof(struct smmon_counts));
+
+ /*
+ Set the interrupt mask for each controller.
+ */
+
+ mask = 0x1f7f701;
+ ncr_write(NCP_REGION_ID(0x22, 0), 0x414, 4, &mask);
+ ncr_write(NCP_REGION_ID(0xf, 0), 0x414, 4, &mask);
+
rc = request_irq(32 + 161, smmon_isr, IRQF_ONESHOT,
"smmon_0", NULL);
rc |= request_irq(32 + 160, smmon_isr, IRQF_ONESHOT,
@@ -274,7 +284,7 @@ static int __init smmon_init(void)
module_init(smmon_init);
/*
-
-------------------------------------------------------------------------------
+
------------------------------------------------------------------------------
smmon_exit
*/
--
1.8.4.3
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