[dpdk-stable] patch 'test/power: fix CPU frequency check for intel_pstate' has been queued to stable release 20.11.3

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 20.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/28/21. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/7bbe27495819e91b7ae8d5aeddafc5d91414337a

Thanks.

Luca Boccassi

---
>From 7bbe27495819e91b7ae8d5aeddafc5d91414337a Mon Sep 17 00:00:00 2001
From: Richael Zhuang <richael.zhuang at arm.com>
Date: Wed, 14 Jul 2021 18:44:05 +0800
Subject: [PATCH] test/power: fix CPU frequency check for intel_pstate

[ upstream commit cf1e803508009917f41dd5bb347e4140043afe03 ]

For acpi_cpufreq and cppc_cpufreq, both cpuinfo_cur_freq and
scaling_cur_freq exist. For pstate, only scaling_cur_freq exists.
And value in scaling_cur_freq and cpuinfo_cur_freq may not be the
same. For acpi_cpufreq and cppc_cpufreq, we should check
cpuinfo_cur_freq but not scaling_cur_freq. So here change the
check sequence to make sure it works for all cpufreq drivers.
Besides, add rounding for pstate driver.

Fixes: ff6dfb8e492f ("test/power: fix CPU frequency check")

Signed-off-by: Richael Zhuang <richael.zhuang at arm.com>
Acked-by: David Hunt <david.hunt at intel.com>
---
 app/test/test_power_cpufreq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/app/test/test_power_cpufreq.c b/app/test/test_power_cpufreq.c
index 0c3adc5f33..1c9d5cb48e 100644
--- a/app/test/test_power_cpufreq.c
+++ b/app/test/test_power_cpufreq.c
@@ -60,13 +60,13 @@ check_cur_freq(unsigned int lcore_id, uint32_t idx, bool turbo)
 	int i;
 
 	if (snprintf(fullpath, sizeof(fullpath),
-		TEST_POWER_SYSFILE_SCALING_FREQ, lcore_id) < 0) {
+		TEST_POWER_SYSFILE_CPUINFO_FREQ, lcore_id) < 0) {
 		return 0;
 	}
 	f = fopen(fullpath, "r");
 	if (f == NULL) {
 		if (snprintf(fullpath, sizeof(fullpath),
-			TEST_POWER_SYSFILE_CPUINFO_FREQ, lcore_id) < 0) {
+			TEST_POWER_SYSFILE_SCALING_FREQ, lcore_id) < 0) {
 			return 0;
 		}
 		f = fopen(fullpath, "r");
-- 
2.30.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-07-26 13:53:16.826089054 +0100
+++ 0018-test-power-fix-CPU-frequency-check-for-intel_pstate.patch	2021-07-26 13:53:15.833292286 +0100
@@ -1 +1 @@
-From cf1e803508009917f41dd5bb347e4140043afe03 Mon Sep 17 00:00:00 2001
+From 7bbe27495819e91b7ae8d5aeddafc5d91414337a Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit cf1e803508009917f41dd5bb347e4140043afe03 ]
+
@@ -15 +16,0 @@
-Cc: stable at dpdk.org
@@ -20,2 +21,2 @@
- app/test/test_power_cpufreq.c | 6 +++---
- 1 file changed, 3 insertions(+), 3 deletions(-)
+ app/test/test_power_cpufreq.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
@@ -24 +25 @@
-index b8fc53925c..1a9549527e 100644
+index 0c3adc5f33..1c9d5cb48e 100644
@@ -27 +28 @@
-@@ -62,13 +62,13 @@ check_cur_freq(unsigned int lcore_id, uint32_t idx, bool turbo)
+@@ -60,13 +60,13 @@ check_cur_freq(unsigned int lcore_id, uint32_t idx, bool turbo)
@@ -43,9 +43,0 @@
-@@ -85,7 +85,7 @@ check_cur_freq(unsigned int lcore_id, uint32_t idx, bool turbo)
- 		freq_conv = cur_freq;
- 
- 		env = rte_power_get_env();
--		if (env == PM_ENV_CPPC_CPUFREQ) {
-+		if (env == PM_ENV_CPPC_CPUFREQ || env == PM_ENV_PSTATE_CPUFREQ) {
- 			/* convert the frequency to nearest 100000 value
- 			 * Ex: if cur_freq=1396789 then freq_conv=1400000
- 			 * Ex: if cur_freq=800030 then freq_conv=800000