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authorLinus Torvalds <torvalds@linux-foundation.org>2013-02-19 17:49:41 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-19 17:49:41 -0800
commit8f55cea410dbc56114bb71a3742032070c8108d0 (patch)
tree59605f0ee961274b22f91add33f5c32459471a83 /drivers/pci
parentb7133a9a103655cda254987a3c0975fd9d8c443f (diff)
parente259514eef764a5286873618e34c560ecb6cff13 (diff)
downloadlwn-8f55cea410dbc56114bb71a3742032070c8108d0.tar.gz
lwn-8f55cea410dbc56114bb71a3742032070c8108d0.zip
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf changes from Ingo Molnar: "There are lots of improvements, the biggest changes are: Main kernel side changes: - Improve uprobes performance by adding 'pre-filtering' support, by Oleg Nesterov. - Make some POWER7 events available in sysfs, equivalent to what was done on x86, from Sukadev Bhattiprolu. - tracing updates by Steve Rostedt - mostly misc fixes and smaller improvements. - Use perf/event tracing to report PCI Express advanced errors, by Tony Luck. - Enable northbridge performance counters on AMD family 15h, by Jacob Shin. - This tracing commit: tracing: Remove the extra 4 bytes of padding in events changes the ABI. All involved parties (PowerTop in particular) seem to agree that it's safe to do now with the introduction of libtraceevent, but the devil is in the details ... Main tooling side changes: - Add 'event group view', from Namyung Kim: To use it, 'perf record' should group events when recording. And then perf report parses the saved group relation from file header and prints them together if --group option is provided. You can use the 'perf evlist' command to see event group information: $ perf record -e '{ref-cycles,cycles}' noploop 1 [ perf record: Woken up 2 times to write data ] [ perf record: Captured and wrote 0.385 MB perf.data (~16807 samples) ] $ perf evlist --group {ref-cycles,cycles} With this example, default perf report will show you each event separately. You can use --group option to enable event group view: $ perf report --group ... # group: {ref-cycles,cycles} # ======== # Samples: 7K of event 'anon group { ref-cycles, cycles }' # Event count (approx.): 6876107743 # # Overhead Command Shared Object Symbol # ................ ....... ................. .......................... 99.84% 99.76% noploop noploop [.] main 0.07% 0.00% noploop ld-2.15.so [.] strcmp 0.03% 0.00% noploop [kernel.kallsyms] [k] timerqueue_del 0.03% 0.03% noploop [kernel.kallsyms] [k] sched_clock_cpu 0.02% 0.00% noploop [kernel.kallsyms] [k] account_user_time 0.01% 0.00% noploop [kernel.kallsyms] [k] __alloc_pages_nodemask 0.00% 0.00% noploop [kernel.kallsyms] [k] native_write_msr_safe 0.00% 0.11% noploop [kernel.kallsyms] [k] _raw_spin_lock 0.00% 0.06% noploop [kernel.kallsyms] [k] find_get_page 0.00% 0.02% noploop [kernel.kallsyms] [k] rcu_check_callbacks 0.00% 0.02% noploop [kernel.kallsyms] [k] __current_kernel_time As you can see the Overhead column now contains both of ref-cycles and cycles and header line shows group information also - 'anon group { ref-cycles, cycles }'. The output is sorted by period of group leader first. - Initial GTK+ annotate browser, from Namhyung Kim. - Add option for runtime switching perf data file in perf report, just press 's' and a menu with the valid files found in the current directory will be presented, from Feng Tang. - Add support to display whole group data for raw columns, from Jiri Olsa. - Add per processor socket count aggregation in perf stat, from Stephane Eranian. - Add interval printing in 'perf stat', from Stephane Eranian. - 'perf test' improvements - Add support for wildcards in tracepoint system name, from Jiri Olsa. - Add anonymous huge page recognition, from Joshua Zhu. - perf build-id cache now can show DSOs present in a perf.data file that are not in the cache, to integrate with build-id servers being put in place by organizations such as Fedora. - perf top now shares more of the evsel config/creation routines with 'record', paving the way for further integration like 'top' snapshots, etc. - perf top now supports DWARF callchains. - Fix mmap limitations on 32-bit, fix from David Miller. - 'perf bench numa mem' NUMA performance measurement suite - ... and lots of fixes, performance improvements, cleanups and other improvements I failed to list - see the shortlog and git log for details." * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (270 commits) perf/x86/amd: Enable northbridge performance counters on AMD family 15h perf/hwbp: Fix cleanup in case of kzalloc failure perf tools: Fix build with bison 2.3 and older. perf tools: Limit unwind support to x86 archs perf annotate: Make it to be able to skip unannotatable symbols perf gtk/annotate: Fail early if it can't annotate perf gtk/annotate: Show source lines with gray color perf gtk/annotate: Support multiple event annotation perf ui/gtk: Implement basic GTK2 annotation browser perf annotate: Fix warning message on a missing vmlinux perf buildid-cache: Add --update option uprobes/perf: Avoid uprobe_apply() whenever possible uprobes/perf: Teach trace_uprobe/perf code to use UPROBE_HANDLER_REMOVE uprobes/perf: Teach trace_uprobe/perf code to pre-filter uprobes/perf: Teach trace_uprobe/perf code to track the active perf_event's uprobes: Introduce uprobe_apply() perf: Introduce hw_perf_event->tp_target and ->tp_list uprobes/perf: Always increment trace_uprobe->nhit uprobes/tracing: Kill uprobe_trace_consumer, embed uprobe_consumer into trace_uprobe uprobes/tracing: Introduce is_trace_uprobe_enabled() ...
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pcie/aer/aerdrv_errprint.c63
1 files changed, 34 insertions, 29 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c
index 3ea51736f18d..5ab14251839d 100644
--- a/drivers/pci/pcie/aer/aerdrv_errprint.c
+++ b/drivers/pci/pcie/aer/aerdrv_errprint.c
@@ -23,6 +23,9 @@
#include "aerdrv.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/ras.h>
+
#define AER_AGENT_RECEIVER 0
#define AER_AGENT_REQUESTER 1
#define AER_AGENT_COMPLETER 2
@@ -121,12 +124,11 @@ static const char *aer_agent_string[] = {
"Transmitter ID"
};
-static void __aer_print_error(const char *prefix,
+static void __aer_print_error(struct pci_dev *dev,
struct aer_err_info *info)
{
int i, status;
const char *errmsg = NULL;
-
status = (info->status & ~info->mask);
for (i = 0; i < 32; i++) {
@@ -141,26 +143,22 @@ static void __aer_print_error(const char *prefix,
aer_uncorrectable_error_string[i] : NULL;
if (errmsg)
- printk("%s"" [%2d] %-22s%s\n", prefix, i, errmsg,
+ dev_err(&dev->dev, " [%2d] %-22s%s\n", i, errmsg,
info->first_error == i ? " (First)" : "");
else
- printk("%s"" [%2d] Unknown Error Bit%s\n", prefix, i,
- info->first_error == i ? " (First)" : "");
+ dev_err(&dev->dev, " [%2d] Unknown Error Bit%s\n",
+ i, info->first_error == i ? " (First)" : "");
}
}
void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
{
int id = ((dev->bus->number << 8) | dev->devfn);
- char prefix[44];
-
- snprintf(prefix, sizeof(prefix), "%s%s %s: ",
- (info->severity == AER_CORRECTABLE) ? KERN_WARNING : KERN_ERR,
- dev_driver_string(&dev->dev), dev_name(&dev->dev));
if (info->status == 0) {
- printk("%s""PCIe Bus Error: severity=%s, type=Unaccessible, "
- "id=%04x(Unregistered Agent ID)\n", prefix,
+ dev_err(&dev->dev,
+ "PCIe Bus Error: severity=%s, type=Unaccessible, "
+ "id=%04x(Unregistered Agent ID)\n",
aer_error_severity_string[info->severity], id);
} else {
int layer, agent;
@@ -168,22 +166,24 @@ void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
layer = AER_GET_LAYER_ERROR(info->severity, info->status);
agent = AER_GET_AGENT(info->severity, info->status);
- printk("%s""PCIe Bus Error: severity=%s, type=%s, id=%04x(%s)\n",
- prefix, aer_error_severity_string[info->severity],
+ dev_err(&dev->dev,
+ "PCIe Bus Error: severity=%s, type=%s, id=%04x(%s)\n",
+ aer_error_severity_string[info->severity],
aer_error_layer[layer], id, aer_agent_string[agent]);
- printk("%s"" device [%04x:%04x] error status/mask=%08x/%08x\n",
- prefix, dev->vendor, dev->device,
+ dev_err(&dev->dev,
+ " device [%04x:%04x] error status/mask=%08x/%08x\n",
+ dev->vendor, dev->device,
info->status, info->mask);
- __aer_print_error(prefix, info);
+ __aer_print_error(dev, info);
if (info->tlp_header_valid) {
unsigned char *tlp = (unsigned char *) &info->tlp;
- printk("%s"" TLP Header:"
+ dev_err(&dev->dev, " TLP Header:"
" %02x%02x%02x%02x %02x%02x%02x%02x"
" %02x%02x%02x%02x %02x%02x%02x%02x\n",
- prefix, *(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
+ *(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
*(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4),
*(tlp + 11), *(tlp + 10), *(tlp + 9),
*(tlp + 8), *(tlp + 15), *(tlp + 14),
@@ -192,8 +192,11 @@ void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
}
if (info->id && info->error_dev_num > 1 && info->id == id)
- printk("%s"" Error of this Agent(%04x) is reported first\n",
- prefix, id);
+ dev_err(&dev->dev,
+ " Error of this Agent(%04x) is reported first\n",
+ id);
+ trace_aer_event(dev_name(&dev->dev), (info->status & ~info->mask),
+ info->severity);
}
void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info)
@@ -217,7 +220,7 @@ int cper_severity_to_aer(int cper_severity)
}
EXPORT_SYMBOL_GPL(cper_severity_to_aer);
-void cper_print_aer(const char *prefix, int cper_severity,
+void cper_print_aer(const char *prefix, struct pci_dev *dev, int cper_severity,
struct aer_capability_regs *aer)
{
int aer_severity, layer, agent, status_strs_size, tlp_header_valid = 0;
@@ -239,25 +242,27 @@ void cper_print_aer(const char *prefix, int cper_severity,
}
layer = AER_GET_LAYER_ERROR(aer_severity, status);
agent = AER_GET_AGENT(aer_severity, status);
- printk("%s""aer_status: 0x%08x, aer_mask: 0x%08x\n",
- prefix, status, mask);
+ dev_err(&dev->dev, "aer_status: 0x%08x, aer_mask: 0x%08x\n",
+ status, mask);
cper_print_bits(prefix, status, status_strs, status_strs_size);
- printk("%s""aer_layer=%s, aer_agent=%s\n", prefix,
+ dev_err(&dev->dev, "aer_layer=%s, aer_agent=%s\n",
aer_error_layer[layer], aer_agent_string[agent]);
if (aer_severity != AER_CORRECTABLE)
- printk("%s""aer_uncor_severity: 0x%08x\n",
- prefix, aer->uncor_severity);
+ dev_err(&dev->dev, "aer_uncor_severity: 0x%08x\n",
+ aer->uncor_severity);
if (tlp_header_valid) {
const unsigned char *tlp;
tlp = (const unsigned char *)&aer->header_log;
- printk("%s""aer_tlp_header:"
+ dev_err(&dev->dev, "aer_tlp_header:"
" %02x%02x%02x%02x %02x%02x%02x%02x"
" %02x%02x%02x%02x %02x%02x%02x%02x\n",
- prefix, *(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
+ *(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
*(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4),
*(tlp + 11), *(tlp + 10), *(tlp + 9),
*(tlp + 8), *(tlp + 15), *(tlp + 14),
*(tlp + 13), *(tlp + 12));
}
+ trace_aer_event(dev_name(&dev->dev), (status & ~mask),
+ aer_severity);
}
#endif