--- zzzz-none-000/linux-3.10.107/arch/x86/kernel/cpu/mtrr/cyrix.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/x86/kernel/cpu/mtrr/cyrix.c	2021-02-04 17:41:59.000000000 +0000
@@ -138,8 +138,8 @@
 
 	/*  Save value of CR4 and clear Page Global Enable (bit 7)  */
 	if (cpu_has_pge) {
-		cr4 = read_cr4();
-		write_cr4(cr4 & ~X86_CR4_PGE);
+		cr4 = __read_cr4();
+		__write_cr4(cr4 & ~X86_CR4_PGE);
 	}
 
 	/*
@@ -167,11 +167,11 @@
 	setCx86(CX86_CCR3, ccr3);
 
 	/* Enable caches */
-	write_cr0(read_cr0() & 0xbfffffff);
+	write_cr0(read_cr0() & ~X86_CR0_CD);
 
 	/* Restore value of CR4 */
 	if (cpu_has_pge)
-		write_cr4(cr4);
+		__write_cr4(cr4);
 }
 
 static void cyrix_set_arr(unsigned int reg, unsigned long base,