1 files changed, 29 insertions, 0 deletions
diff --git a/sys-kernel/linux-image/files/0001-Revert-x86-ACPI-cstate-Allow-ACPI-C1-FFH-MWAIT-use-o.patch b/sys-kernel/linux-image/files/0001-Revert-x86-ACPI-cstate-Allow-ACPI-C1-FFH-MWAIT-use-o.patch
new file mode 100644
index 00000000..e8f3bfda
--- /dev/null
+++ b/sys-kernel/linux-image/files/0001-Revert-x86-ACPI-cstate-Allow-ACPI-C1-FFH-MWAIT-use-o.patch
@@ -0,0 +1,29 @@
+From f912ead404ffa24db7f4aee527aff411db39262a Mon Sep 17 00:00:00 2001
+From: Gabriel Craciunescu <crazy@frugalware.org>
+Date: Wed, 11 Apr 2018 17:17:06 +0200
+Subject: [PATCH] Revert "x86/ACPI/cstate: Allow ACPI C1 FFH MWAIT use on AMD systems"
+
+This reverts commit 5209654a46ee71137ad9b06da99d4ef2794475af.
+Please see: https://community.amd.com/thread/224000
+
+---
+ arch/x86/kernel/acpi/cstate.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
+index dde437f5d14f..8233a630280f 100644
+--- a/arch/x86/kernel/acpi/cstate.c
++++ b/arch/x86/kernel/acpi/cstate.c
+@@ -167,8 +167,7 @@ static int __init ffh_cstate_init(void)
+ {
+ 	struct cpuinfo_x86 *c = &boot_cpu_data;
+ 
+-	if (c->x86_vendor != X86_VENDOR_INTEL &&
+-	    c->x86_vendor != X86_VENDOR_AMD)
++	if (c->x86_vendor != X86_VENDOR_INTEL)
+ 		return -1;
+ 
+ 	cpu_cstate_entry = alloc_percpu(struct cstate_entry);
+-- 
+2.17.0
+