Kai-Heng Feng 78ca4df15a intel_idle: Disable promotion to C1E on Jasper Lake and Elkhart Lake ... [ Upstream commit 5bb33212b5c664396e5de4cd5a2999abb84a3978 ] PCIe ethernet throughut is sub-optimal on Jasper Lake and Elkhart Lake. The CPU can take long time to exit to C0 to handle IRQ and perform DMA when C1E has been entered. For this reason, adjust intel_idle to disable promotion to C1E and still use C-states from ACPI _CST on those two platforms. Link: https://bugzilla.kernel.org/show_bug.cgi?id=219023 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://patch.msgid.link/20240820041128.102452-1-kai.heng.feng@canonical.com [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-10-10 12:03:06 +02:00
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intel_idle.c	intel_idle: Disable promotion to C1E on Jasper Lake and Elkhart Lake	2024-10-10 12:03:06 +02:00
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