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| author | H. Peter Anvin <hpa@zytor.com> | 2008-08-27 19:17:07 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-08-27 19:17:07 -0700 |
| commit | b30a72a7edfc64c8929104d5c2178aca489aa559 (patch) | |
| tree | 2b26c155c318d08d946bd2d70cf815dcdb29a243 /arch/x86/power/cpu_32.c | |
| parent | f1c5d30e1d79bbfb60eaf189db862d3cb2bcac92 (diff) | |
| parent | c1b362e3b4d331a63915b268a33207311a439d60 (diff) | |
Merge branch 'x86/urgent' into x86/cpu
Conflicts:
arch/x86/kernel/cpu/cyrix.c
Diffstat (limited to 'arch/x86/power/cpu_32.c')
| -rw-r--r-- | arch/x86/power/cpu_32.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/power/cpu_32.c b/arch/x86/power/cpu_32.c index 7dc5d5cf50a..d3e083dea72 100644 --- a/arch/x86/power/cpu_32.c +++ b/arch/x86/power/cpu_32.c @@ -45,7 +45,7 @@ static void __save_processor_state(struct saved_context *ctxt) ctxt->cr0 = read_cr0(); ctxt->cr2 = read_cr2(); ctxt->cr3 = read_cr3(); - ctxt->cr4 = read_cr4(); + ctxt->cr4 = read_cr4_safe(); } /* Needed by apm.c */ @@ -98,7 +98,9 @@ static void __restore_processor_state(struct saved_context *ctxt) /* * control registers */ - write_cr4(ctxt->cr4); + /* cr4 was introduced in the Pentium CPU */ + if (ctxt->cr4) + write_cr4(ctxt->cr4); write_cr3(ctxt->cr3); write_cr2(ctxt->cr2); write_cr0(ctxt->cr0); |