This patchset fixes https://bugzilla.kernel.org/show_bug.cgi?id=197833, and
other issues related to telemetry counters. It also cleans up formatting
and removes redundant code.
It is rebased on top of the TESTING branch.
Changes since v2:
* Changes in GCR read API name and adding back static qualifier to account
for case of missing logs during suspend/resume
Changes since v1:
* Code-Review comments have been incorporated.
Souvik Kumar Chakravarty (4):
platform/x86: intel_pmc_ipc: Add read64 API
platform/x86: intel_telemetry: Fix suspend stats
platform/x86: intel_telemetry: Improve S0ix logs
platform/x86: intel_telemetry: Remove redundancies
arch/x86/include/asm/intel_pmc_ipc.h | 6 ++
drivers/platform/x86/intel_pmc_ipc.c | 33 +++++++++-
drivers/platform/x86/intel_telemetry_debugfs.c | 83 +++++++++++---------------
3 files changed, 72 insertions(+), 50 deletions(-)
--
2.7.4
From 1584810104849819979@xxx Wed Nov 22 23:18:13 +0000 2017
X-GM-THRID: 1584809408300378471
X-Gmail-Labels: Inbox,Category Forums,HistoricalUnread
Suspend with shallow wakes is not a useful parameter since the phenomena
does not exist on deployed devices and is only a parameter of use during
device power-on phase. The field always reads zero. Additionally there
are other easier methods to detect it, e.g., if the S0ix counter
increments by more than one during suspend. Hence the field is superfluous
and can be removed.
This patch also slightly renames the S0ix total field for better
viewability.
Signed-off-by: Souvik Kumar Chakravarty <[email protected]>
---
drivers/platform/x86/intel_telemetry_debugfs.c | 45 ++++----------------------
1 file changed, 7 insertions(+), 38 deletions(-)
Changes since v1:
* Remove alignment changes from this patch
diff --git a/drivers/platform/x86/intel_telemetry_debugfs.c b/drivers/platform/x86/intel_telemetry_debugfs.c
index 5bc4f20..97aae98 100644
--- a/drivers/platform/x86/intel_telemetry_debugfs.c
+++ b/drivers/platform/x86/intel_telemetry_debugfs.c
@@ -98,10 +98,6 @@ static u32 suspend_shlw_ctr_temp, suspend_deep_ctr_temp;
static u64 suspend_shlw_res_temp, suspend_deep_res_temp;
struct telemetry_susp_stats {
- u32 shlw_swake_ctr;
- u32 deep_swake_ctr;
- u64 shlw_swake_res;
- u64 deep_swake_res;
u32 shlw_ctr;
u32 deep_ctr;
u64 shlw_res;
@@ -598,19 +594,15 @@ static int telem_soc_states_show(struct seq_file *s, void *unused)
seq_printf(s, "S0IX Shallow\t\t\t %10u\t %10llu\n",
s0ix_shlw_ctr -
- conf->suspend_stats.shlw_ctr -
- conf->suspend_stats.shlw_swake_ctr,
+ conf->suspend_stats.shlw_ctr,
(u64)((s0ix_shlw_res -
- conf->suspend_stats.shlw_res -
- conf->suspend_stats.shlw_swake_res)*10/192));
+ conf->suspend_stats.shlw_res)*10/192));
seq_printf(s, "S0IX Deep\t\t\t %10u\t %10llu\n",
s0ix_deep_ctr -
- conf->suspend_stats.deep_ctr -
- conf->suspend_stats.deep_swake_ctr,
+ conf->suspend_stats.deep_ctr,
(u64)((s0ix_deep_res -
- conf->suspend_stats.deep_res -
- conf->suspend_stats.deep_swake_res)*10/192));
+ conf->suspend_stats.deep_res)*10/192));
seq_printf(s, "Suspend(With S0ixShallow)\t %10u\t %10llu\n",
conf->suspend_stats.shlw_ctr,
@@ -620,13 +612,7 @@ static int telem_soc_states_show(struct seq_file *s, void *unused)
conf->suspend_stats.deep_ctr,
(u64)(conf->suspend_stats.deep_res*10)/192);
- seq_printf(s, "Suspend(With Shallow-Wakes)\t %10u\t %10llu\n",
- conf->suspend_stats.shlw_swake_ctr +
- conf->suspend_stats.deep_swake_ctr,
- (u64)((conf->suspend_stats.shlw_swake_res +
- conf->suspend_stats.deep_swake_res)*10/192));
-
- seq_printf(s, "S0IX+Suspend Total\t\t %10u\t %10llu\n", s0ix_total_ctr,
+ seq_printf(s, "TOTAL S0IX\t\t\t %10u\t %10llu\n", s0ix_total_ctr,
(u64)(s0ix_total_res*10/192));
seq_puts(s, "\n-------------------------------------------------\n");
seq_puts(s, "\t\tDEVICE STATES\n");
@@ -920,23 +906,15 @@ static int pm_suspend_exit_cb(void)
suspend_shlw_res_exit -= suspend_shlw_res_temp;
suspend_deep_res_exit -= suspend_deep_res_temp;
- if (suspend_shlw_ctr_exit == 1) {
+ if (suspend_shlw_ctr_exit != 0) {
conf->suspend_stats.shlw_ctr +=
suspend_shlw_ctr_exit;
conf->suspend_stats.shlw_res +=
suspend_shlw_res_exit;
}
- /* Shallow Wakes Case */
- else if (suspend_shlw_ctr_exit > 1) {
- conf->suspend_stats.shlw_swake_ctr +=
- suspend_shlw_ctr_exit;
-
- conf->suspend_stats.shlw_swake_res +=
- suspend_shlw_res_exit;
- }
- if (suspend_deep_ctr_exit == 1) {
+ if (suspend_deep_ctr_exit != 0) {
conf->suspend_stats.deep_ctr +=
suspend_deep_ctr_exit;
@@ -944,15 +922,6 @@ static int pm_suspend_exit_cb(void)
suspend_deep_res_exit;
}
- /* Shallow Wakes Case */
- else if (suspend_deep_ctr_exit > 1) {
- conf->suspend_stats.deep_swake_ctr +=
- suspend_deep_ctr_exit;
-
- conf->suspend_stats.deep_swake_res +=
- suspend_deep_res_exit;
- }
-
out:
suspend_prep_ok = 0;
return NOTIFY_OK;
--
2.7.4
From 1583679832029810642@xxx Fri Nov 10 11:53:01 +0000 2017
X-GM-THRID: 1583679832029810642
X-Gmail-Labels: Inbox,Category Forums,HistoricalUnread