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-rw-r--r--arch/x86/oprofile/op_model_amd.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/arch/x86/oprofile/op_model_amd.c b/arch/x86/oprofile/op_model_amd.c
index 42fb46f83883..68759e716f0f 100644
--- a/arch/x86/oprofile/op_model_amd.c
+++ b/arch/x86/oprofile/op_model_amd.c
@@ -281,29 +281,25 @@ static inline int eilvt_is_available(int offset)
281 281
282static inline int ibs_eilvt_valid(void) 282static inline int ibs_eilvt_valid(void)
283{ 283{
284 u64 val;
285 int offset; 284 int offset;
285 u64 val;
286 286
287 rdmsrl(MSR_AMD64_IBSCTL, val); 287 rdmsrl(MSR_AMD64_IBSCTL, val);
288 offset = val & IBSCTL_LVT_OFFSET_MASK;
289
288 if (!(val & IBSCTL_LVT_OFFSET_VALID)) { 290 if (!(val & IBSCTL_LVT_OFFSET_VALID)) {
289 pr_err(FW_BUG "cpu %d, invalid IBS " 291 pr_err(FW_BUG "cpu %d, invalid IBS interrupt offset %d (MSR%08X=0x%016llx)\n",
290 "interrupt offset %d (MSR%08X=0x%016llx)", 292 smp_processor_id(), offset, MSR_AMD64_IBSCTL, val);
291 smp_processor_id(), offset,
292 MSR_AMD64_IBSCTL, val);
293 return 0; 293 return 0;
294 } 294 }
295 295
296 offset = val & IBSCTL_LVT_OFFSET_MASK; 296 if (!eilvt_is_available(offset)) {
297 297 pr_err(FW_BUG "cpu %d, IBS interrupt offset %d not available (MSR%08X=0x%016llx)\n",
298 if (eilvt_is_available(offset)) 298 smp_processor_id(), offset, MSR_AMD64_IBSCTL, val);
299 return !0; 299 return 0;
300 300 }
301 pr_err(FW_BUG "cpu %d, IBS interrupt offset %d "
302 "not available (MSR%08X=0x%016llx)",
303 smp_processor_id(), offset,
304 MSR_AMD64_IBSCTL, val);
305 301
306 return 0; 302 return 1;
307} 303}
308 304
309static inline int get_ibs_offset(void) 305static inline int get_ibs_offset(void)