1 files changed, 22 insertions, 18 deletions

diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S
index b95aa6c..d1e9b53 100644
--- a/arch/x86/power/hibernate_asm_32.S
+++ b/arch/x86/power/hibernate_asm_32.S
@@ -1,5 +1,3 @@
-.text
-
 /*
  * This may not use any stack, nor any variable that is not "NoSave":
  *
@@ -12,25 +10,26 @@
 #include <asm/segment.h>
 #include <asm/page.h>
 #include <asm/asm-offsets.h>
+#include <asm/processor-flags.h>
 
-	.text
+.text
 
 ENTRY(swsusp_arch_suspend)
-
 	movl %esp, saved_context_esp
 	movl %ebx, saved_context_ebx
 	movl %ebp, saved_context_ebp
 	movl %esi, saved_context_esi
 	movl %edi, saved_context_edi
-	pushfl ; popl saved_context_eflags
+	pushfl
+	popl saved_context_eflags
 
 	call swsusp_save
 	ret
 
 ENTRY(restore_image)
-	movl	resume_pg_dir, %ecx
-	subl	$__PAGE_OFFSET, %ecx
-	movl	%ecx, %cr3
+	movl	resume_pg_dir, %eax
+	subl	$__PAGE_OFFSET, %eax
+	movl	%eax, %cr3
 
 	movl	restore_pblist, %edx
 	.p2align 4,,7
@@ -52,17 +51,21 @@ copy_loop:
 
 done:
 	/* go back to the original page tables */
-	movl	$swapper_pg_dir, %ecx
-	subl	$__PAGE_OFFSET, %ecx
-	movl	%ecx, %cr3
+	movl	$swapper_pg_dir, %eax
+	subl	$__PAGE_OFFSET, %eax
+	movl	%eax, %cr3
 	/* Flush TLB, including "global" things (vmalloc) */
-	movl	mmu_cr4_features, %eax
-	movl	%eax, %edx
-	andl	$~(1<<7), %edx;  # PGE
+	movl	mmu_cr4_features, %ecx
+	jecxz	1f	# cr4 Pentium and higher, skip if zero
+	movl	%ecx, %edx
+	andl	$~(X86_CR4_PGE), %edx
 	movl	%edx, %cr4;  # turn off PGE
-	movl	%cr3, %ecx;  # flush TLB
-	movl	%ecx, %cr3
-	movl	%eax, %cr4;  # turn PGE back on
+1:
+	movl	%cr3, %eax;  # flush TLB
+	movl	%eax, %cr3
+	jecxz	1f	# cr4 Pentium and higher, skip if zero
+	movl	%ecx, %cr4;  # turn PGE back on
+1:
 
 	movl saved_context_esp, %esp
 	movl saved_context_ebp, %ebp
@@ -70,7 +73,8 @@ done:
 	movl saved_context_esi, %esi
 	movl saved_context_edi, %edi
 
-	pushl saved_context_eflags ; popfl
+	pushl saved_context_eflags
+	popfl
 
 	xorl	%eax, %eax