Re: [Patch v3 0/2] Improvements to the Tegra CPUFREQ driver

From: Sumit Gupta
Date: Tue Oct 10 2023 - 01:43:46 EST




On 10/10/23 11:07, Viresh Kumar wrote:
External email: Use caution opening links or attachments


On 09-10-23, 17:06, Sumit Gupta wrote:


On 04/10/23 19:35, Sumit Gupta wrote:
This patch set adds below improvements to the Tegra194 CPUFREQ driver.
They are applicable to all the Tegra SoC's supported by the driver.

1) Patch 1: Avoid making SMP call on every frequency request to reduce
the time for frequency set and get calls.

2) Patch 2: Use reference clock count based loop instead of udelay()
to improve the accuracy of re-generated CPU frequency.

The patches are not related but have minor conflict. So, need to be
applied in order of patch numbers. If 'Patch 2' is to be applied first
then will rebase that and send separately.

---
v1[2] -> v3:
- Patch 1: used sizeof(*data->cpu_data) in devm_kcalloc().

v1[1] -> v2:
- Patch 1: added new patch.
- Patch 2: changed subject and patch order.

Sumit Gupta (2):
cpufreq: tegra194: save CPU data to avoid repeated SMP calls
cpufreq: tegra194: use refclk delta based loop instead of udelay

drivers/cpufreq/tegra194-cpufreq.c | 151 ++++++++++++++++++++---------
1 file changed, 106 insertions(+), 45 deletions(-)

[2] https://lore.kernel.org/lkml/20230901164113.29139-1-sumitg@xxxxxxxxxx/
[1] https://lore.kernel.org/lkml/20230901152046.25662-1-sumitg@xxxxxxxxxx/


Hi Viresh,

If there is no further comment.
Can we please still apply these patches for 6.7 ?

Applied. Thanks.

FWIW, you should have rebased the other commit (which removes cpu
online mask) over this one. I had to fix the commit manually now.

--
viresh

Sorry, my bad.
Thank you for your help.

Best Regards,
Sumit Gupta