Merge: redhat/configs: Change the amd-pstate driver from builtin to loadable

Frantisek Hrbata · Frantisek Hrbata · commit 0fe6a54f6bb2 · 2022-12-06T02:53:19.000-05:00
MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/1716 Bugzilla: https://bugzilla.redhat.com/2143793 Upstream Status: RHEL-Only Tested: https://bugzilla.redhat.com/show_bug.cgi?id=2143793#c19 The amd-pstate driver can have a negative performance impact on some AMD servers. The fix for now is to avoid having this driver load by default which can be accomplished by transitioning it from builtin to loadable. Signed-off-by: David Arcari <darcari@redhat.com> Approved-by: Chris von Recklinghausen <crecklin@redhat.com> Approved-by: Steve Best <sbest@redhat.com> Approved-by: Mark Langsdorf <mlangsdo@redhat.com> Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
diff --git a/redhat/configs/common/generic/x86/CONFIG_X86_AMD_PSTATE b/redhat/configs/common/generic/x86/CONFIG_X86_AMD_PSTATE
@@ -1 +1,2 @@
-CONFIG_X86_AMD_PSTATE=y
+# This must remain as 'm' for AMD servers which will load ACPI drivers before the amd_pstate driver
+CONFIG_X86_AMD_PSTATE=m

Original file line number	Diff line number	Diff line change
`@@ -1 +1,2 @@`
`1`		`-CONFIG_X86_AMD_PSTATE=y`
	`1`	`+# This must remain as 'm' for AMD servers which will load ACPI drivers before the amd_pstate driver`
	`2`	`+CONFIG_X86_AMD_PSTATE=m`