From: Prashanth Prakash <pprakash@codeaurora.org>
To: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org, linaro-acpi@lists.linaro.org,
ashwin.chaugule@linaro.org, alexey.klimov@arm.com,
timur@codeaurora.org, Prashanth Prakash <pprakash@codeaurora.org>
Subject: [PATCH V3 0/4] acpi: cppc optimization patches
Date: Wed, 10 Feb 2016 13:05:58 -0700 [thread overview]
Message-ID: <1455134762-31400-1-git-send-email-pprakash@codeaurora.org> (raw)
Changes in V3: Addressed the review comments from Alexey, Ashwin and Timur
Changes in V2: Fixed compilation error on i386
This series introduces changes to reduce the time required to send a frequency
transition requests to the platform while using the cppc-cpufreq driver.
With these changes we see significant improvement in the average time to send
freq. transition request to the platform. Profiling on an ARM platform showed
that the average transaction time per request reduced from 200us to under 20us.
Ashwin Chaugule (1):
ACPI / CPPC: Optimize PCC Read Write operations
Prashanth Prakash (3):
acpi: cppc: optimized cpc_read and cpc_write
mailbox: pcc: optimized pcc_send_data
acpi: cppc: replace writeX/readX to PCC with relaxed version
drivers/acpi/cppc_acpi.c | 183 +++++++++++++++++++++++++++++++++++------------
drivers/mailbox/pcc.c | 111 ++++++++++++++++++++++++++--
2 files changed, 241 insertions(+), 53 deletions(-)
--
Qualcomm Technologies, Inc. on behalf
of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc.
is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
next reply other threads:[~2016-02-10 20:06 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-10 20:05 Prashanth Prakash [this message]
2016-02-10 20:05 ` [PATCH V3 1/4] ACPI / CPPC: Optimize PCC Read Write operations Prashanth Prakash
2016-02-10 20:42 ` Timur Tabi
2016-02-10 21:15 ` Ashwin Chaugule
2016-02-10 21:57 ` Timur Tabi
2016-02-10 22:17 ` Ashwin Chaugule
2016-02-15 16:37 ` Alexey Klimov
2016-02-16 18:47 ` Ashwin Chaugule
2016-02-16 19:10 ` Rafael J. Wysocki
2016-02-16 19:33 ` Ashwin Chaugule
2016-02-16 19:39 ` Rafael J. Wysocki
2016-02-29 17:39 ` Alexey Klimov
2016-02-29 19:20 ` Prakash, Prashanth
2016-02-10 20:06 ` [PATCH V3 2/4] acpi: cppc: optimized cpc_read and cpc_write Prashanth Prakash
2016-02-10 20:06 ` [PATCH V3 3/4] mailbox: pcc: optimized pcc_send_data Prashanth Prakash
2016-02-10 20:06 ` [PATCH V3 4/4] acpi: cppc: replace writeX/readX to PCC with relaxed version Prashanth Prakash
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