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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> |
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| intel_idle.c | ||
| Kconfig | ||
| Makefile | ||