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kernel-ark/arch/alpha/kernel/err_marvel.c
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

1162 lines
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// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/alpha/kernel/err_marvel.c
*
* Copyright (C) 2001 Jeff Wiedemeier (Compaq Computer Corporation)
*
*/
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/sched.h>
#include <asm/io.h>
#include <asm/console.h>
#include <asm/core_marvel.h>
#include <asm/hwrpb.h>
#include <asm/smp.h>
#include <asm/err_common.h>
#include <asm/err_ev7.h>
#include "err_impl.h"
#include "proto.h"
static void
marvel_print_680_frame(struct ev7_lf_subpackets *lf_subpackets)
{
#ifdef CONFIG_VERBOSE_MCHECK
struct ev7_pal_environmental_subpacket *env;
struct { int type; char *name; } ev_packets[] = {
{ EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE,
"Ambient Temperature" },
{ EL_TYPE__PAL__ENV__AIRMOVER_FAN,
"AirMover / Fan" },
{ EL_TYPE__PAL__ENV__VOLTAGE,
"Voltage" },
{ EL_TYPE__PAL__ENV__INTRUSION,
"Intrusion" },
{ EL_TYPE__PAL__ENV__POWER_SUPPLY,
"Power Supply" },
{ EL_TYPE__PAL__ENV__LAN,
"LAN" },
{ EL_TYPE__PAL__ENV__HOT_PLUG,
"Hot Plug" },
{ 0, NULL }
};
int i;
for (i = 0; ev_packets[i].type != 0; i++) {
env = lf_subpackets->env[ev7_lf_env_index(ev_packets[i].type)];
if (!env)
continue;
printk("%s**%s event (cabinet %d, drawer %d)\n",
err_print_prefix,
ev_packets[i].name,
env->cabinet,
env->drawer);
printk("%s Module Type: 0x%x - Unit ID 0x%x - "
"Condition 0x%x\n",
err_print_prefix,
env->module_type,
env->unit_id,
env->condition);
}
#endif /* CONFIG_VERBOSE_MCHECK */
}
static int
marvel_process_680_frame(struct ev7_lf_subpackets *lf_subpackets, int print)
{
int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
int i;
for (i = ev7_lf_env_index(EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE);
i <= ev7_lf_env_index(EL_TYPE__PAL__ENV__HOT_PLUG);
i++) {
if (lf_subpackets->env[i])
status = MCHK_DISPOSITION_REPORT;
}
if (print)
marvel_print_680_frame(lf_subpackets);
return status;
}
#ifdef CONFIG_VERBOSE_MCHECK
static void
marvel_print_err_cyc(u64 err_cyc)
{
static char *packet_desc[] = {
"No Error",
"UNKNOWN",
"1 cycle (1 or 2 flit packet)",
"2 cycles (3 flit packet)",
"9 cycles (18 flit packet)",
"10 cycles (19 flit packet)",
"UNKNOWN",
"UNKNOWN",
"UNKNOWN"
};
#define IO7__ERR_CYC__ODD_FLT (1UL << 0)
#define IO7__ERR_CYC__EVN_FLT (1UL << 1)
#define IO7__ERR_CYC__PACKET__S (6)
#define IO7__ERR_CYC__PACKET__M (0x7)
#define IO7__ERR_CYC__LOC (1UL << 5)
#define IO7__ERR_CYC__CYCLE__S (2)
#define IO7__ERR_CYC__CYCLE__M (0x7)
printk("%s Packet In Error: %s\n"
"%s Error in %s, cycle %lld%s%s\n",
err_print_prefix,
packet_desc[EXTRACT(err_cyc, IO7__ERR_CYC__PACKET)],
err_print_prefix,
(err_cyc & IO7__ERR_CYC__LOC) ? "DATA" : "HEADER",
EXTRACT(err_cyc, IO7__ERR_CYC__CYCLE),
(err_cyc & IO7__ERR_CYC__ODD_FLT) ? " [ODD Flit]": "",
(err_cyc & IO7__ERR_CYC__EVN_FLT) ? " [Even Flit]": "");
}
static void
marvel_print_po7_crrct_sym(u64 crrct_sym)
{
#define IO7__PO7_CRRCT_SYM__SYN__S (0)
#define IO7__PO7_CRRCT_SYM__SYN__M (0x7f)
#define IO7__PO7_CRRCT_SYM__ERR_CYC__S (7) /* ERR_CYC + ODD_FLT + EVN_FLT */
#define IO7__PO7_CRRCT_SYM__ERR_CYC__M (0x1ff)
printk("%s Correctable Error Symptoms:\n"
"%s Syndrome: 0x%llx\n",
err_print_prefix,
err_print_prefix, EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__SYN));
marvel_print_err_cyc(EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__ERR_CYC));
}
static void
marvel_print_po7_uncrr_sym(u64 uncrr_sym, u64 valid_mask)
{
static char *clk_names[] = { "_h[0]", "_h[1]", "_n[0]", "_n[1]" };
static char *clk_decode[] = {
"No Error",
"One extra rising edge",
"Two extra rising edges",
"Lost one clock"
};
static char *port_names[] = { "Port 0", "Port 1",
"Port 2", "Port 3",
"Unknown Port", "Unknown Port",
"Unknown Port", "Port 7" };
int scratch, i;
#define IO7__PO7_UNCRR_SYM__SYN__S (0)
#define IO7__PO7_UNCRR_SYM__SYN__M (0x7f)
#define IO7__PO7_UNCRR_SYM__ERR_CYC__S (7) /* ERR_CYC + ODD_FLT... */
#define IO7__PO7_UNCRR_SYM__ERR_CYC__M (0x1ff) /* ... + EVN_FLT */
#define IO7__PO7_UNCRR_SYM__CLK__S (16)
#define IO7__PO7_UNCRR_SYM__CLK__M (0xff)
#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__REQ (1UL << 24)
#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__RIO (1UL << 25)
#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__WIO (1UL << 26)
#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__BLK (1UL << 27)
#define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__NBK (1UL << 28)
#define IO7__PO7_UNCRR_SYM__OVF__READIO (1UL << 29)
#define IO7__PO7_UNCRR_SYM__OVF__WRITEIO (1UL << 30)
#define IO7__PO7_UNCRR_SYM__OVF__FWD (1UL << 31)
#define IO7__PO7_UNCRR_SYM__VICTIM_SP__S (32)
#define IO7__PO7_UNCRR_SYM__VICTIM_SP__M (0xff)
#define IO7__PO7_UNCRR_SYM__DETECT_SP__S (40)
#define IO7__PO7_UNCRR_SYM__DETECT_SP__M (0xff)
#define IO7__PO7_UNCRR_SYM__STRV_VTR__S (48)
#define IO7__PO7_UNCRR_SYM__STRV_VTR__M (0x3ff)
#define IO7__STRV_VTR__LSI__INTX__S (0)
#define IO7__STRV_VTR__LSI__INTX__M (0x3)
#define IO7__STRV_VTR__LSI__SLOT__S (2)
#define IO7__STRV_VTR__LSI__SLOT__M (0x7)
#define IO7__STRV_VTR__LSI__BUS__S (5)
#define IO7__STRV_VTR__LSI__BUS__M (0x3)
#define IO7__STRV_VTR__MSI__INTNUM__S (0)
#define IO7__STRV_VTR__MSI__INTNUM__M (0x1ff)
#define IO7__STRV_VTR__IS_MSI (1UL << 9)
printk("%s Uncorrectable Error Symptoms:\n", err_print_prefix);
uncrr_sym &= valid_mask;
if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__SYN))
printk("%s Syndrome: 0x%llx\n",
err_print_prefix,
EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__SYN));
if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__ERR_CYC))
marvel_print_err_cyc(EXTRACT(uncrr_sym,
IO7__PO7_UNCRR_SYM__ERR_CYC));
scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__CLK);
for (i = 0; i < 4; i++, scratch >>= 2) {
if (scratch & 0x3)
printk("%s Clock %s: %s\n",
err_print_prefix,
clk_names[i], clk_decode[scratch & 0x3]);
}
if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__REQ)
printk("%s REQ Credit Timeout or Overflow\n",
err_print_prefix);
if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__RIO)
printk("%s RIO Credit Timeout or Overflow\n",
err_print_prefix);
if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__WIO)
printk("%s WIO Credit Timeout or Overflow\n",
err_print_prefix);
if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__BLK)
printk("%s BLK Credit Timeout or Overflow\n",
err_print_prefix);
if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__NBK)
printk("%s NBK Credit Timeout or Overflow\n",
err_print_prefix);
if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__READIO)
printk("%s Read I/O Buffer Overflow\n",
err_print_prefix);
if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__WRITEIO)
printk("%s Write I/O Buffer Overflow\n",
err_print_prefix);
if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__FWD)
printk("%s FWD Buffer Overflow\n",
err_print_prefix);
if ((scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__VICTIM_SP))) {
int lost = scratch & (1UL << 4);
scratch &= ~lost;
for (i = 0; i < 8; i++, scratch >>= 1) {
if (!(scratch & 1))
continue;
printk("%s Error Response sent to %s",
err_print_prefix, port_names[i]);
}
if (lost)
printk("%s Lost Error sent somewhere else\n",
err_print_prefix);
}
if ((scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__DETECT_SP))) {
for (i = 0; i < 8; i++, scratch >>= 1) {
if (!(scratch & 1))
continue;
printk("%s Error Reported by %s",
err_print_prefix, port_names[i]);
}
}
if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__STRV_VTR)) {
char starvation_message[80];
scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__STRV_VTR);
if (scratch & IO7__STRV_VTR__IS_MSI)
sprintf(starvation_message,
"MSI Interrupt 0x%x",
EXTRACT(scratch, IO7__STRV_VTR__MSI__INTNUM));
else
sprintf(starvation_message,
"LSI INT%c for Bus:Slot (%d:%d)\n",
'A' + EXTRACT(scratch,
IO7__STRV_VTR__LSI__INTX),
EXTRACT(scratch, IO7__STRV_VTR__LSI__BUS),
EXTRACT(scratch, IO7__STRV_VTR__LSI__SLOT));
printk("%s Starvation Int Trigger By: %s\n",
err_print_prefix, starvation_message);
}
}
static void
marvel_print_po7_ugbge_sym(u64 ugbge_sym)
{
char opcode_str[10];
#define IO7__PO7_UGBGE_SYM__UPH_PKT_OFF__S (6)
#define IO7__PO7_UGBGE_SYM__UPH_PKT_OFF__M (0xfffffffful)
#define IO7__PO7_UGBGE_SYM__UPH_OPCODE__S (40)
#define IO7__PO7_UGBGE_SYM__UPH_OPCODE__M (0xff)
#define IO7__PO7_UGBGE_SYM__UPH_SRC_PORT__S (48)
#define IO7__PO7_UGBGE_SYM__UPH_SRC_PORT__M (0xf)
#define IO7__PO7_UGBGE_SYM__UPH_DEST_PID__S (52)
#define IO7__PO7_UGBGE_SYM__UPH_DEST_PID__M (0x7ff)
#define IO7__PO7_UGBGE_SYM__VALID (1UL << 63)
if (!(ugbge_sym & IO7__PO7_UGBGE_SYM__VALID))
return;
switch(EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)) {
case 0x51:
sprintf(opcode_str, "Wr32");
break;
case 0x50:
sprintf(opcode_str, "WrQW");
break;
case 0x54:
sprintf(opcode_str, "WrIPR");
break;
case 0xD8:
sprintf(opcode_str, "Victim");
break;
case 0xC5:
sprintf(opcode_str, "BlkIO");
break;
default:
sprintf(opcode_str, "0x%llx\n",
EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE));
break;
}
printk("%s Up Hose Garbage Symptom:\n"
"%s Source Port: %lld - Dest PID: %lld - OpCode: %s\n",
err_print_prefix,
err_print_prefix,
EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_SRC_PORT),
EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_DEST_PID),
opcode_str);
if (0xC5 != EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE))
printk("%s Packet Offset 0x%08llx\n",
err_print_prefix,
EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_PKT_OFF));
}
static void
marvel_print_po7_err_sum(struct ev7_pal_io_subpacket *io)
{
u64 uncrr_sym_valid = 0;
#define IO7__PO7_ERRSUM__CR_SBE (1UL << 32)
#define IO7__PO7_ERRSUM__CR_SBE2 (1UL << 33)
#define IO7__PO7_ERRSUM__CR_PIO_WBYTE (1UL << 34)
#define IO7__PO7_ERRSUM__CR_CSR_NXM (1UL << 35)
#define IO7__PO7_ERRSUM__CR_RPID_ACV (1UL << 36)
#define IO7__PO7_ERRSUM__CR_RSP_NXM (1UL << 37)
#define IO7__PO7_ERRSUM__CR_ERR_RESP (1UL << 38)
#define IO7__PO7_ERRSUM__CR_CLK_DERR (1UL << 39)
#define IO7__PO7_ERRSUM__CR_DAT_DBE (1UL << 40)
#define IO7__PO7_ERRSUM__CR_DAT_GRBG (1UL << 41)
#define IO7__PO7_ERRSUM__MAF_TO (1UL << 42)
#define IO7__PO7_ERRSUM__UGBGE (1UL << 43)
#define IO7__PO7_ERRSUM__UN_MAF_LOST (1UL << 44)
#define IO7__PO7_ERRSUM__UN_PKT_OVF (1UL << 45)
#define IO7__PO7_ERRSUM__UN_CDT_OVF (1UL << 46)
#define IO7__PO7_ERRSUM__UN_DEALLOC (1UL << 47)
#define IO7__PO7_ERRSUM__BH_CDT_TO (1UL << 51)
#define IO7__PO7_ERRSUM__BH_CLK_HDR (1UL << 52)
#define IO7__PO7_ERRSUM__BH_DBE_HDR (1UL << 53)
#define IO7__PO7_ERRSUM__BH_GBG_HDR (1UL << 54)
#define IO7__PO7_ERRSUM__BH_BAD_CMD (1UL << 55)
#define IO7__PO7_ERRSUM__HLT_INT (1UL << 56)
#define IO7__PO7_ERRSUM__HP_INT (1UL << 57)
#define IO7__PO7_ERRSUM__CRD_INT (1UL << 58)
#define IO7__PO7_ERRSUM__STV_INT (1UL << 59)
#define IO7__PO7_ERRSUM__HRD_INT (1UL << 60)
#define IO7__PO7_ERRSUM__BH_SUM (1UL << 61)
#define IO7__PO7_ERRSUM__ERR_LST (1UL << 62)
#define IO7__PO7_ERRSUM__ERR_VALID (1UL << 63)
#define IO7__PO7_ERRSUM__ERR_MASK (IO7__PO7_ERRSUM__ERR_VALID | \
IO7__PO7_ERRSUM__CR_SBE)
/*
* Single bit errors aren't covered by ERR_VALID.
*/
if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_SBE) {
printk("%s %sSingle Bit Error(s) detected/corrected\n",
err_print_prefix,
(io->po7_error_sum & IO7__PO7_ERRSUM__CR_SBE2)
? "Multiple " : "");
marvel_print_po7_crrct_sym(io->po7_crrct_sym);
}
/*
* Neither are the interrupt status bits
*/
if (io->po7_error_sum & IO7__PO7_ERRSUM__HLT_INT)
printk("%s Halt Interrupt posted", err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__HP_INT) {
printk("%s Hot Plug Event Interrupt posted",
err_print_prefix);
uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__DETECT_SP);
}
if (io->po7_error_sum & IO7__PO7_ERRSUM__CRD_INT)
printk("%s Correctable Error Interrupt posted",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__STV_INT) {
printk("%s Starvation Interrupt posted", err_print_prefix);
uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__STRV_VTR);
}
if (io->po7_error_sum & IO7__PO7_ERRSUM__HRD_INT) {
printk("%s Hard Error Interrupt posted", err_print_prefix);
uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__DETECT_SP);
}
/*
* Everything else is valid only with ERR_VALID, so skip to the end
* (uncrr_sym check) unless ERR_VALID is set.
*/
if (!(io->po7_error_sum & IO7__PO7_ERRSUM__ERR_VALID))
goto check_uncrr_sym;
/*
* Since ERR_VALID is set, VICTIM_SP in uncrr_sym is valid.
* For bits [29:0] to also be valid, the following bits must
* not be set:
* CR_PIO_WBYTE CR_CSR_NXM CR_RSP_NXM
* CR_ERR_RESP MAF_TO
*/
uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__VICTIM_SP);
if (!(io->po7_error_sum & (IO7__PO7_ERRSUM__CR_PIO_WBYTE |
IO7__PO7_ERRSUM__CR_CSR_NXM |
IO7__PO7_ERRSUM__CR_RSP_NXM |
IO7__PO7_ERRSUM__CR_ERR_RESP |
IO7__PO7_ERRSUM__MAF_TO)))
uncrr_sym_valid |= 0x3ffffffful;
if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_PIO_WBYTE)
printk("%s Write byte into IO7 CSR\n", err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_CSR_NXM)
printk("%s PIO to non-existent CSR\n", err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_RPID_ACV)
printk("%s Bus Requester PID (Access Violation)\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_RSP_NXM)
printk("%s Received NXM response from EV7\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_ERR_RESP)
printk("%s Received ERROR RESPONSE\n", err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_CLK_DERR)
printk("%s Clock error on data flit\n", err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_DAT_DBE)
printk("%s Double Bit Error Data Error Detected\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_DAT_GRBG)
printk("%s Garbage Encoding Detected on the data\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__UGBGE) {
printk("%s Garbage Encoding sent up hose\n",
err_print_prefix);
marvel_print_po7_ugbge_sym(io->po7_ugbge_sym);
}
if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_MAF_LOST)
printk("%s Orphan response (unexpected response)\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_PKT_OVF)
printk("%s Down hose packet overflow\n", err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_CDT_OVF)
printk("%s Down hose credit overflow\n", err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_DEALLOC)
printk("%s Unexpected or bad dealloc field\n",
err_print_prefix);
/*
* The black hole events.
*/
if (io->po7_error_sum & IO7__PO7_ERRSUM__MAF_TO)
printk("%s BLACK HOLE: Timeout for all responses\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_CDT_TO)
printk("%s BLACK HOLE: Credit Timeout\n", err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_CLK_HDR)
printk("%s BLACK HOLE: Clock check on header\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_DBE_HDR)
printk("%s BLACK HOLE: Uncorrectable Error on header\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_GBG_HDR)
printk("%s BLACK HOLE: Garbage on header\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_BAD_CMD)
printk("%s BLACK HOLE: Bad EV7 command\n",
err_print_prefix);
if (io->po7_error_sum & IO7__PO7_ERRSUM__ERR_LST)
printk("%s Lost Error\n", err_print_prefix);
printk("%s Failing Packet:\n"
"%s Cycle 1: %016llx\n"
"%s Cycle 2: %016llx\n",
err_print_prefix,
err_print_prefix, io->po7_err_pkt0,
err_print_prefix, io->po7_err_pkt1);
/*
* If there are any valid bits in UNCRR sym for this err,
* print UNCRR_SYM as well.
*/
check_uncrr_sym:
if (uncrr_sym_valid)
marvel_print_po7_uncrr_sym(io->po7_uncrr_sym, uncrr_sym_valid);
}
static void
marvel_print_pox_tlb_err(u64 tlb_err)
{
static char *tlb_errors[] = {
"No Error",
"North Port Signaled Error fetching TLB entry",
"PTE invalid or UCC or GBG error on this entry",
"Address did not hit any DMA window"
};
#define IO7__POX_TLBERR__ERR_VALID (1UL << 63)
#define IO7__POX_TLBERR__ERRCODE__S (0)
#define IO7__POX_TLBERR__ERRCODE__M (0x3)
#define IO7__POX_TLBERR__ERR_TLB_PTR__S (3)
#define IO7__POX_TLBERR__ERR_TLB_PTR__M (0x7)
#define IO7__POX_TLBERR__FADDR__S (6)
#define IO7__POX_TLBERR__FADDR__M (0x3fffffffffful)
if (!(tlb_err & IO7__POX_TLBERR__ERR_VALID))
return;
printk("%s TLB Error on index 0x%llx:\n"
"%s - %s\n"
"%s - Addr: 0x%016llx\n",
err_print_prefix,
EXTRACT(tlb_err, IO7__POX_TLBERR__ERR_TLB_PTR),
err_print_prefix,
tlb_errors[EXTRACT(tlb_err, IO7__POX_TLBERR__ERRCODE)],
err_print_prefix,
EXTRACT(tlb_err, IO7__POX_TLBERR__FADDR) << 6);
}
static void
marvel_print_pox_spl_cmplt(u64 spl_cmplt)
{
char message[80];
#define IO7__POX_SPLCMPLT__MESSAGE__S (0)
#define IO7__POX_SPLCMPLT__MESSAGE__M (0x0fffffffful)
#define IO7__POX_SPLCMPLT__SOURCE_BUS__S (40)
#define IO7__POX_SPLCMPLT__SOURCE_BUS__M (0xfful)
#define IO7__POX_SPLCMPLT__SOURCE_DEV__S (35)
#define IO7__POX_SPLCMPLT__SOURCE_DEV__M (0x1ful)
#define IO7__POX_SPLCMPLT__SOURCE_FUNC__S (32)
#define IO7__POX_SPLCMPLT__SOURCE_FUNC__M (0x07ul)
#define IO7__POX_SPLCMPLT__MSG_CLASS__S (28)
#define IO7__POX_SPLCMPLT__MSG_CLASS__M (0xf)
#define IO7__POX_SPLCMPLT__MSG_INDEX__S (20)
#define IO7__POX_SPLCMPLT__MSG_INDEX__M (0xff)
#define IO7__POX_SPLCMPLT__MSG_CLASSINDEX__S (20)
#define IO7__POX_SPLCMPLT__MSG_CLASSINDEX__M (0xfff)
#define IO7__POX_SPLCMPLT__REM_LOWER_ADDR__S (12)
#define IO7__POX_SPLCMPLT__REM_LOWER_ADDR__M (0x7f)
#define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__S (0)
#define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__M (0xfff)
printk("%s Split Completion Error:\n"
"%s Source (Bus:Dev:Func): %lld:%lld:%lld\n",
err_print_prefix,
err_print_prefix,
EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_BUS),
EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_DEV),
EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_FUNC));
switch(EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__MSG_CLASSINDEX)) {
case 0x000:
sprintf(message, "Normal completion");
break;
case 0x100:
sprintf(message, "Bridge - Master Abort");
break;
case 0x101:
sprintf(message, "Bridge - Target Abort");
break;
case 0x102:
sprintf(message, "Bridge - Uncorrectable Write Data Error");
break;
case 0x200:
sprintf(message, "Byte Count Out of Range");
break;
case 0x201:
sprintf(message, "Uncorrectable Split Write Data Error");
break;
default:
sprintf(message, "%08llx\n",
EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__MESSAGE));
break;
}
printk("%s Message: %s\n", err_print_prefix, message);
}
static void
marvel_print_pox_trans_sum(u64 trans_sum)
{
static const char * const pcix_cmd[] = {
"Interrupt Acknowledge",
"Special Cycle",
"I/O Read",
"I/O Write",
"Reserved",
"Reserved / Device ID Message",
"Memory Read",
"Memory Write",
"Reserved / Alias to Memory Read Block",
"Reserved / Alias to Memory Write Block",
"Configuration Read",
"Configuration Write",
"Memory Read Multiple / Split Completion",
"Dual Address Cycle",
"Memory Read Line / Memory Read Block",
"Memory Write and Invalidate / Memory Write Block"
};
#define IO7__POX_TRANSUM__PCI_ADDR__S (0)
#define IO7__POX_TRANSUM__PCI_ADDR__M (0x3fffffffffffful)
#define IO7__POX_TRANSUM__DAC (1UL << 50)
#define IO7__POX_TRANSUM__PCIX_MASTER_SLOT__S (52)
#define IO7__POX_TRANSUM__PCIX_MASTER_SLOT__M (0xf)
#define IO7__POX_TRANSUM__PCIX_CMD__S (56)
#define IO7__POX_TRANSUM__PCIX_CMD__M (0xf)
#define IO7__POX_TRANSUM__ERR_VALID (1UL << 63)
if (!(trans_sum & IO7__POX_TRANSUM__ERR_VALID))
return;
printk("%s Transaction Summary:\n"
"%s Command: 0x%llx - %s\n"
"%s Address: 0x%016llx%s\n"
"%s PCI-X Master Slot: 0x%llx\n",
err_print_prefix,
err_print_prefix,
EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_CMD),
pcix_cmd[EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_CMD)],
err_print_prefix,
EXTRACT(trans_sum, IO7__POX_TRANSUM__PCI_ADDR),
(trans_sum & IO7__POX_TRANSUM__DAC) ? " (DAC)" : "",
err_print_prefix,
EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_MASTER_SLOT));
}
static void
marvel_print_pox_err(u64 err_sum, struct ev7_pal_io_one_port *port)
{
#define IO7__POX_ERRSUM__AGP_REQQ_OVFL (1UL << 4)
#define IO7__POX_ERRSUM__AGP_SYNC_ERR (1UL << 5)
#define IO7__POX_ERRSUM__MRETRY_TO (1UL << 6)
#define IO7__POX_ERRSUM__PCIX_UX_SPL (1UL << 7)
#define IO7__POX_ERRSUM__PCIX_SPLIT_TO (1UL << 8)
#define IO7__POX_ERRSUM__PCIX_DISCARD_SPL (1UL << 9)
#define IO7__POX_ERRSUM__DMA_RD_TO (1UL << 10)
#define IO7__POX_ERRSUM__CSR_NXM_RD (1UL << 11)
#define IO7__POX_ERRSUM__CSR_NXM_WR (1UL << 12)
#define IO7__POX_ERRSUM__DMA_TO (1UL << 13)
#define IO7__POX_ERRSUM__ALL_MABORTS (1UL << 14)
#define IO7__POX_ERRSUM__MABORT (1UL << 15)
#define IO7__POX_ERRSUM__MABORT_MASK (IO7__POX_ERRSUM__ALL_MABORTS|\
IO7__POX_ERRSUM__MABORT)
#define IO7__POX_ERRSUM__PT_TABORT (1UL << 16)
#define IO7__POX_ERRSUM__PM_TABORT (1UL << 17)
#define IO7__POX_ERRSUM__TABORT_MASK (IO7__POX_ERRSUM__PT_TABORT | \
IO7__POX_ERRSUM__PM_TABORT)
#define IO7__POX_ERRSUM__SERR (1UL << 18)
#define IO7__POX_ERRSUM__ADDRERR_STB (1UL << 19)
#define IO7__POX_ERRSUM__DETECTED_SERR (1UL << 20)
#define IO7__POX_ERRSUM__PERR (1UL << 21)
#define IO7__POX_ERRSUM__DATAERR_STB_NIOW (1UL << 22)
#define IO7__POX_ERRSUM__DETECTED_PERR (1UL << 23)
#define IO7__POX_ERRSUM__PM_PERR (1UL << 24)
#define IO7__POX_ERRSUM__PT_SCERROR (1UL << 26)
#define IO7__POX_ERRSUM__HUNG_BUS (1UL << 28)
#define IO7__POX_ERRSUM__UPE_ERROR__S (51)
#define IO7__POX_ERRSUM__UPE_ERROR__M (0xffUL)
#define IO7__POX_ERRSUM__UPE_ERROR GEN_MASK(IO7__POX_ERRSUM__UPE_ERROR)
#define IO7__POX_ERRSUM__TLB_ERR (1UL << 59)
#define IO7__POX_ERRSUM__ERR_VALID (1UL << 63)
#define IO7__POX_ERRSUM__TRANS_SUM__MASK (IO7__POX_ERRSUM__MRETRY_TO | \
IO7__POX_ERRSUM__PCIX_UX_SPL | \
IO7__POX_ERRSUM__PCIX_SPLIT_TO | \
IO7__POX_ERRSUM__DMA_TO | \
IO7__POX_ERRSUM__MABORT_MASK | \
IO7__POX_ERRSUM__TABORT_MASK | \
IO7__POX_ERRSUM__SERR | \
IO7__POX_ERRSUM__ADDRERR_STB | \
IO7__POX_ERRSUM__PERR | \
IO7__POX_ERRSUM__DATAERR_STB_NIOW |\
IO7__POX_ERRSUM__DETECTED_PERR | \
IO7__POX_ERRSUM__PM_PERR | \
IO7__POX_ERRSUM__PT_SCERROR | \
IO7__POX_ERRSUM__UPE_ERROR)
if (!(err_sum & IO7__POX_ERRSUM__ERR_VALID))
return;
/*
* First the transaction summary errors
*/
if (err_sum & IO7__POX_ERRSUM__MRETRY_TO)
printk("%s IO7 Master Retry Timeout expired\n",
err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__PCIX_UX_SPL)
printk("%s Unexpected Split Completion\n",
err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__PCIX_SPLIT_TO)
printk("%s IO7 Split Completion Timeout expired\n",
err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__DMA_TO)
printk("%s Hung bus during DMA transaction\n",
err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__MABORT_MASK)
printk("%s Master Abort\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__PT_TABORT)
printk("%s IO7 Asserted Target Abort\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__PM_TABORT)
printk("%s IO7 Received Target Abort\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__ADDRERR_STB) {
printk("%s Address or PCI-X Attribute Parity Error\n",
err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__SERR)
printk("%s IO7 Asserted SERR\n", err_print_prefix);
}
if (err_sum & IO7__POX_ERRSUM__PERR) {
if (err_sum & IO7__POX_ERRSUM__DATAERR_STB_NIOW)
printk("%s IO7 Detected Data Parity Error\n",
err_print_prefix);
else
printk("%s Split Completion Response with "
"Parity Error\n", err_print_prefix);
}
if (err_sum & IO7__POX_ERRSUM__DETECTED_PERR)
printk("%s PERR detected\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__PM_PERR)
printk("%s PERR while IO7 is master\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__PT_SCERROR) {
printk("%s IO7 Received Split Completion Error message\n",
err_print_prefix);
marvel_print_pox_spl_cmplt(port->pox_spl_cmplt);
}
if (err_sum & IO7__POX_ERRSUM__UPE_ERROR) {
unsigned int upe_error = EXTRACT(err_sum,
IO7__POX_ERRSUM__UPE_ERROR);
int i;
static char *upe_errors[] = {
"Parity Error on MSI write data",
"MSI read (MSI window is write only",
"TLB - Invalid WR transaction",
"TLB - Invalid RD transaction",
"DMA - WR error (see north port)",
"DMA - RD error (see north port)",
"PPR - WR error (see north port)",
"PPR - RD error (see north port)"
};
printk("%s UPE Error:\n", err_print_prefix);
for (i = 0; i < 8; i++) {
if (upe_error & (1 << i))
printk("%s %s\n", err_print_prefix,
upe_errors[i]);
}
}
/*
* POx_TRANS_SUM, if appropriate.
*/
if (err_sum & IO7__POX_ERRSUM__TRANS_SUM__MASK)
marvel_print_pox_trans_sum(port->pox_trans_sum);
/*
* Then TLB_ERR.
*/
if (err_sum & IO7__POX_ERRSUM__TLB_ERR) {
printk("%s TLB ERROR\n", err_print_prefix);
marvel_print_pox_tlb_err(port->pox_tlb_err);
}
/*
* And the single bit status errors.
*/
if (err_sum & IO7__POX_ERRSUM__AGP_REQQ_OVFL)
printk("%s AGP Request Queue Overflow\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__AGP_SYNC_ERR)
printk("%s AGP Sync Error\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__PCIX_DISCARD_SPL)
printk("%s Discarded split completion\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__DMA_RD_TO)
printk("%s DMA Read Timeout\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__CSR_NXM_RD)
printk("%s CSR NXM READ\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__CSR_NXM_WR)
printk("%s CSR NXM WRITE\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__DETECTED_SERR)
printk("%s SERR detected\n", err_print_prefix);
if (err_sum & IO7__POX_ERRSUM__HUNG_BUS)
printk("%s HUNG BUS detected\n", err_print_prefix);
}
#endif /* CONFIG_VERBOSE_MCHECK */
static struct ev7_pal_io_subpacket *
marvel_find_io7_with_error(struct ev7_lf_subpackets *lf_subpackets)
{
struct ev7_pal_io_subpacket *io = lf_subpackets->io;
struct io7 *io7;
int i;
/*
* Caller must provide the packet to fill
*/
if (!io)
return NULL;
/*
* Fill the subpacket with the console's standard fill pattern
*/
memset(io, 0x55, sizeof(*io));
for (io7 = NULL; NULL != (io7 = marvel_next_io7(io7)); ) {
unsigned long err_sum = 0;
err_sum |= io7->csrs->PO7_ERROR_SUM.csr;
for (i = 0; i < IO7_NUM_PORTS; i++) {
if (!io7->ports[i].enabled)
continue;
err_sum |= io7->ports[i].csrs->POx_ERR_SUM.csr;
}
/*
* Is there at least one error?
*/
if (err_sum & (1UL << 63))
break;
}
/*
* Did we find an IO7 with an error?
*/
if (!io7)
return NULL;
/*
* We have an IO7 with an error.
*
* Fill in the IO subpacket.
*/
io->io_asic_rev = io7->csrs->IO_ASIC_REV.csr;
io->io_sys_rev = io7->csrs->IO_SYS_REV.csr;
io->io7_uph = io7->csrs->IO7_UPH.csr;
io->hpi_ctl = io7->csrs->HPI_CTL.csr;
io->crd_ctl = io7->csrs->CRD_CTL.csr;
io->hei_ctl = io7->csrs->HEI_CTL.csr;
io->po7_error_sum = io7->csrs->PO7_ERROR_SUM.csr;
io->po7_uncrr_sym = io7->csrs->PO7_UNCRR_SYM.csr;
io->po7_crrct_sym = io7->csrs->PO7_CRRCT_SYM.csr;
io->po7_ugbge_sym = io7->csrs->PO7_UGBGE_SYM.csr;
io->po7_err_pkt0 = io7->csrs->PO7_ERR_PKT[0].csr;
io->po7_err_pkt1 = io7->csrs->PO7_ERR_PKT[1].csr;
for (i = 0; i < IO7_NUM_PORTS; i++) {
io7_ioport_csrs *csrs = io7->ports[i].csrs;
if (!io7->ports[i].enabled)
continue;
io->ports[i].pox_err_sum = csrs->POx_ERR_SUM.csr;
io->ports[i].pox_tlb_err = csrs->POx_TLB_ERR.csr;
io->ports[i].pox_spl_cmplt = csrs->POx_SPL_COMPLT.csr;
io->ports[i].pox_trans_sum = csrs->POx_TRANS_SUM.csr;
io->ports[i].pox_first_err = csrs->POx_FIRST_ERR.csr;
io->ports[i].pox_mult_err = csrs->POx_MULT_ERR.csr;
io->ports[i].pox_dm_source = csrs->POx_DM_SOURCE.csr;
io->ports[i].pox_dm_dest = csrs->POx_DM_DEST.csr;
io->ports[i].pox_dm_size = csrs->POx_DM_SIZE.csr;
io->ports[i].pox_dm_ctrl = csrs->POx_DM_CTRL.csr;
/*
* Ack this port's errors, if any. POx_ERR_SUM must be last.
*
* Most of the error registers get cleared and unlocked when
* the associated bits in POx_ERR_SUM are cleared (by writing
* 1). POx_TLB_ERR is an exception and must be explicitly
* cleared.
*/
csrs->POx_TLB_ERR.csr = io->ports[i].pox_tlb_err;
csrs->POx_ERR_SUM.csr = io->ports[i].pox_err_sum;
mb();
csrs->POx_ERR_SUM.csr;
}
/*
* Ack any port 7 error(s).
*/
io7->csrs->PO7_ERROR_SUM.csr = io->po7_error_sum;
mb();
io7->csrs->PO7_ERROR_SUM.csr;
/*
* Correct the io7_pid.
*/
lf_subpackets->io_pid = io7->pe;
return io;
}
static int
marvel_process_io_error(struct ev7_lf_subpackets *lf_subpackets, int print)
{
int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
#ifdef CONFIG_VERBOSE_MCHECK
struct ev7_pal_io_subpacket *io = lf_subpackets->io;
int i;
#endif /* CONFIG_VERBOSE_MCHECK */
#define MARVEL_IO_ERR_VALID(x) ((x) & (1UL << 63))
if (!lf_subpackets->logout || !lf_subpackets->io)
return status;
/*
* The PALcode only builds an IO subpacket if there is a
* locally connected IO7. In the cases of
* 1) a uniprocessor kernel
* 2) an mp kernel before the local secondary has called in
* error interrupts are all directed to the primary processor.
* In that case, we may not have an IO subpacket at all and, event
* if we do, it may not be the right now.
*
* If the RBOX indicates an I/O error interrupt, make sure we have
* the correct IO7 information. If we don't have an IO subpacket
* or it's the wrong one, try to find the right one.
*
* RBOX I/O error interrupts are indicated by RBOX_INT<29> and
* RBOX_INT<10>.
*/
if ((lf_subpackets->io->po7_error_sum & (1UL << 32)) ||
((lf_subpackets->io->po7_error_sum |
lf_subpackets->io->ports[0].pox_err_sum |
lf_subpackets->io->ports[1].pox_err_sum |
lf_subpackets->io->ports[2].pox_err_sum |
lf_subpackets->io->ports[3].pox_err_sum) & (1UL << 63))) {
/*
* Either we have no IO subpacket or no error is
* indicated in the one we do have. Try find the
* one with the error.
*/
if (!marvel_find_io7_with_error(lf_subpackets))
return status;
}
/*
* We have an IO7 indicating an error - we're going to report it
*/
status = MCHK_DISPOSITION_REPORT;
#ifdef CONFIG_VERBOSE_MCHECK
if (!print)
return status;
printk("%s*Error occurred on IO7 at PID %u\n",
err_print_prefix, lf_subpackets->io_pid);
/*
* Check port 7 first
*/
if (lf_subpackets->io->po7_error_sum & IO7__PO7_ERRSUM__ERR_MASK) {
marvel_print_po7_err_sum(io);
#if 0
printk("%s PORT 7 ERROR:\n"
"%s PO7_ERROR_SUM: %016llx\n"
"%s PO7_UNCRR_SYM: %016llx\n"
"%s PO7_CRRCT_SYM: %016llx\n"
"%s PO7_UGBGE_SYM: %016llx\n"
"%s PO7_ERR_PKT0: %016llx\n"
"%s PO7_ERR_PKT1: %016llx\n",
err_print_prefix,
err_print_prefix, io->po7_error_sum,
err_print_prefix, io->po7_uncrr_sym,
err_print_prefix, io->po7_crrct_sym,
err_print_prefix, io->po7_ugbge_sym,
err_print_prefix, io->po7_err_pkt0,
err_print_prefix, io->po7_err_pkt1);
#endif
}
/*
* Then loop through the ports
*/
for (i = 0; i < IO7_NUM_PORTS; i++) {
if (!MARVEL_IO_ERR_VALID(io->ports[i].pox_err_sum))
continue;
printk("%s PID %u PORT %d POx_ERR_SUM: %016llx\n",
err_print_prefix,
lf_subpackets->io_pid, i, io->ports[i].pox_err_sum);
marvel_print_pox_err(io->ports[i].pox_err_sum, &io->ports[i]);
printk("%s [ POx_FIRST_ERR: %016llx ]\n",
err_print_prefix, io->ports[i].pox_first_err);
marvel_print_pox_err(io->ports[i].pox_first_err,
&io->ports[i]);
}
#endif /* CONFIG_VERBOSE_MCHECK */
return status;
}
static int
marvel_process_logout_frame(struct ev7_lf_subpackets *lf_subpackets, int print)
{
int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
/*
* I/O error?
*/
#define EV7__RBOX_INT__IO_ERROR__MASK 0x20000400ul
if (lf_subpackets->logout &&
(lf_subpackets->logout->rbox_int & 0x20000400ul))
status = marvel_process_io_error(lf_subpackets, print);
/*
* Probing behind PCI-X bridges can cause machine checks on
* Marvel when the probe is handled by the bridge as a split
* completion transaction. The symptom is an ERROR_RESPONSE
* to a CONFIG address. Since these errors will happen in
* normal operation, dismiss them.
*
* Dismiss if:
* C_STAT = 0x14 (Error Response)
* C_STS<3> = 0 (C_ADDR valid)
* C_ADDR<42> = 1 (I/O)
* C_ADDR<31:22> = 111110xxb (PCI Config space)
*/
if (lf_subpackets->ev7 &&
(lf_subpackets->ev7->c_stat == 0x14) &&
!(lf_subpackets->ev7->c_sts & 0x8) &&
((lf_subpackets->ev7->c_addr & 0x400ff000000ul)
== 0x400fe000000ul))
status = MCHK_DISPOSITION_DISMISS;
return status;
}
void
marvel_machine_check(unsigned long vector, unsigned long la_ptr)
{
struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
int (*process_frame)(struct ev7_lf_subpackets *, int) = NULL;
struct ev7_lf_subpackets subpacket_collection = { NULL, };
struct ev7_pal_io_subpacket scratch_io_packet = { 0, };
struct ev7_lf_subpackets *lf_subpackets = NULL;
int disposition = MCHK_DISPOSITION_UNKNOWN_ERROR;
char *saved_err_prefix = err_print_prefix;
char *error_type = NULL;
/*
* Sync the processor
*/
mb();
draina();
switch(vector) {
case SCB_Q_SYSEVENT:
process_frame = marvel_process_680_frame;
error_type = "System Event";
break;
case SCB_Q_SYSMCHK:
process_frame = marvel_process_logout_frame;
error_type = "System Uncorrectable Error";
break;
case SCB_Q_SYSERR:
process_frame = marvel_process_logout_frame;
error_type = "System Correctable Error";
break;
default:
/* Don't know it - pass it up. */
ev7_machine_check(vector, la_ptr);
return;
}
/*
* A system event or error has occurred, handle it here.
*
* Any errors in the logout frame have already been cleared by the
* PALcode, so just parse it.
*/
err_print_prefix = KERN_CRIT;
/*
* Parse the logout frame without printing first. If the only error(s)
* found are classified as "dismissable", then just dismiss them and
* don't print any message
*/
lf_subpackets =
ev7_collect_logout_frame_subpackets(el_ptr,
&subpacket_collection);
if (process_frame && lf_subpackets && lf_subpackets->logout) {
/*
* We might not have the correct (or any) I/O subpacket.
* [ See marvel_process_io_error() for explanation. ]
* If we don't have one, point the io subpacket in
* lf_subpackets at scratch_io_packet so that
* marvel_find_io7_with_error() will have someplace to
* store the info.
*/
if (!lf_subpackets->io)
lf_subpackets->io = &scratch_io_packet;
/*
* Default io_pid to the processor reporting the error
* [this will get changed in marvel_find_io7_with_error()
* if a different one is needed]
*/
lf_subpackets->io_pid = lf_subpackets->logout->whami;
/*
* Evaluate the frames.
*/
disposition = process_frame(lf_subpackets, 0);
}
switch(disposition) {
case MCHK_DISPOSITION_DISMISS:
/* Nothing to do. */
break;
case MCHK_DISPOSITION_REPORT:
/* Recognized error, report it. */
printk("%s*%s (Vector 0x%x) reported on CPU %d\n",
err_print_prefix, error_type,
(unsigned int)vector, (int)smp_processor_id());
el_print_timestamp(&lf_subpackets->logout->timestamp);
process_frame(lf_subpackets, 1);
break;
default:
/* Unknown - dump the annotated subpackets. */
printk("%s*%s (Vector 0x%x) reported on CPU %d\n",
err_print_prefix, error_type,
(unsigned int)vector, (int)smp_processor_id());
el_process_subpacket(el_ptr);
break;
}
err_print_prefix = saved_err_prefix;
/* Release the logout frame. */
wrmces(0x7);
mb();
}
void __init
marvel_register_error_handlers(void)
{
ev7_register_error_handlers();
}
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