Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf_counter: Start documenting HAVE_PERF_COUNTERS requirements
  perf_counter: Add forward/backward attribute ABI compatibility
  perf record: Explicity program a default counter
  perf_counter: Remove PERF_TYPE_RAW special casing
  perf_counter: PERF_TYPE_HW_CACHE is a hardware counter too
  powerpc, perf_counter: Fix performance counter event types
  perf_counter/x86: Add a quirk for Atom processors
  perf_counter tools: Remove one L1-data alias

2 files changed, 13 insertions, 6 deletions

diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c
index b3f7d1216bae..b72e7a19d054 100644
--- a/arch/powerpc/kernel/power7-pmu.c
+++ b/arch/powerpc/kernel/power7-pmu.c
@@ -294,12 +294,12 @@ static void power7_disable_pmc(unsigned int pmc, u64 mmcr[])
 }
 
 static int power7_generic_events[] = {
-        [PERF_COUNT_CPU_CYCLES] = 0x1e,
-        [PERF_COUNT_INSTRUCTIONS] = 2,
-        [PERF_COUNT_CACHE_REFERENCES] = 0xc880,         /* LD_REF_L1_LSU */
-        [PERF_COUNT_CACHE_MISSES] = 0x400f0,            /* LD_MISS_L1 */
-        [PERF_COUNT_BRANCH_INSTRUCTIONS] = 0x10068,     /* BRU_FIN */
-        [PERF_COUNT_BRANCH_MISSES] = 0x400f6,           /* BR_MPRED */
+        [PERF_COUNT_HW_CPU_CYCLES] = 0x1e,
+        [PERF_COUNT_HW_INSTRUCTIONS] = 2,
+        [PERF_COUNT_HW_CACHE_REFERENCES] = 0xc880,      /* LD_REF_L1_LSU*/
+        [PERF_COUNT_HW_CACHE_MISSES] = 0x400f0,         /* LD_MISS_L1   */
+        [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x10068,  /* BRU_FIN      */
+        [PERF_COUNT_HW_BRANCH_MISSES] = 0x400f6,        /* BR_MPRED     */
 };
 
 #define C(x)    PERF_COUNT_HW_CACHE_##x
diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index 895c82e78455..275bc142cd5d 100644
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -968,6 +968,13 @@ fixed_mode_idx(struct perf_counter *counter, struct hw_perf_counter *hwc)
         if (!x86_pmu.num_counters_fixed)
                 return -1;
 
+        /*
+         * Quirk, IA32_FIXED_CTRs do not work on current Atom processors:
+         */
+        if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL &&
+                                        boot_cpu_data.x86_model == 28)
+                return -1;
+
         event = hwc->config & ARCH_PERFMON_EVENT_MASK;
 
         if (unlikely(event == x86_pmu.event_map(PERF_COUNT_HW_INSTRUCTIONS)))