This is a note to let you know that I've just added the patch titled
crypto: qat - change value of default idle filter
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-qat-change-value-of-default-idle-filter.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b57c48a5f11b0dd74c3f1072794d89345dc930a1
Author: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx>
Date: Thu Jun 22 10:26:35 2023 +0100
crypto: qat - change value of default idle filter
[ Upstream commit 0f942bdfe9d463be3073301519492f8d53c6b2d5 ]
The power management configuration of 4xxx devices is too aggressive
and in some conditions the device might be prematurely put to a low
power state.
Increase the idle filter value to prevent that.
In future, this will be set by firmware.
Fixes: e5745f34113b ("crypto: qat - enable power management for QAT GEN4")
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@xxxxxxxxx>
Reviewed-by: Damian Muszynski <damian.muszynski@xxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.h b/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.h
index f8f8a9ee29e5b..db4326933d1c0 100644
--- a/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.h
+++ b/drivers/crypto/intel/qat/qat_common/adf_gen4_pm.h
@@ -35,7 +35,7 @@
#define ADF_GEN4_PM_MSG_PENDING BIT(0)
#define ADF_GEN4_PM_MSG_PAYLOAD_BIT_MASK GENMASK(28, 1)
-#define ADF_GEN4_PM_DEFAULT_IDLE_FILTER (0x0)
+#define ADF_GEN4_PM_DEFAULT_IDLE_FILTER (0x6)
#define ADF_GEN4_PM_MAX_IDLE_FILTER (0x7)
int adf_gen4_enable_pm(struct adf_accel_dev *accel_dev);
