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

[karo-tx-linux.git] / arch / x86 / kernel / cpu / perf_event.c

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 87eab4a27dfccc0ad75d17338d6a8be5c5a1a1e0..eed3673a8656f5688d54f6b4d72fd9774c831fcb 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -500,12 +500,17 @@ static bool check_hw_exists(void)
        return true;
 
 bios_fail:
-       printk(KERN_CONT "Broken BIOS detected, using software events only.\n");
+       /*
+        * We still allow the PMU driver to operate:
+        */
+       printk(KERN_CONT "Broken BIOS detected, complain to your hardware vendor.\n");
        printk(KERN_ERR FW_BUG "the BIOS has corrupted hw-PMU resources (MSR %x is %Lx)\n", reg, val);
-       return false;
+
+       return true;
 
 msr_fail:
        printk(KERN_CONT "Broken PMU hardware detected, using software events only.\n");
+
        return false;
 }
 
@@ -912,7 +917,7 @@ static inline void x86_assign_hw_event(struct perf_event *event,
                hwc->event_base = 0;
        } else if (hwc->idx >= X86_PMC_IDX_FIXED) {
                hwc->config_base = MSR_ARCH_PERFMON_FIXED_CTR_CTRL;
-               hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0;
+               hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0 + (hwc->idx - X86_PMC_IDX_FIXED);
        } else {
                hwc->config_base = x86_pmu_config_addr(hwc->idx);
                hwc->event_base  = x86_pmu_event_addr(hwc->idx);