Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / x86 / oprofile / op_x86_model.h

diff --git a/kernel/arch/x86/oprofile/op_x86_model.h b/kernel/arch/x86/oprofile/op_x86_model.h
new file mode 100644 (file)
index 0000000..71e8a67
--- /dev/null
+++ b/kernel/arch/x86/oprofile/op_x86_model.h
@@ -0,0 +1,90 @@
+/**
+ * @file op_x86_model.h
+ * interface to x86 model-specific MSR operations
+ *
+ * @remark Copyright 2002 OProfile authors
+ * @remark Read the file COPYING
+ *
+ * @author Graydon Hoare
+ * @author Robert Richter <robert.richter@amd.com>
+ */
+
+#ifndef OP_X86_MODEL_H
+#define OP_X86_MODEL_H
+
+#include <asm/types.h>
+#include <asm/perf_event.h>
+
+struct op_msr {
+       unsigned long   addr;
+       u64             saved;
+};
+
+struct op_msrs {
+       struct op_msr *counters;
+       struct op_msr *controls;
+       struct op_msr *multiplex;
+};
+
+struct pt_regs;
+
+struct oprofile_operations;
+
+/* The model vtable abstracts the differences between
+ * various x86 CPU models' perfctr support.
+ */
+struct op_x86_model_spec {
+       unsigned int    num_counters;
+       unsigned int    num_controls;
+       unsigned int    num_virt_counters;
+       u64             reserved;
+       u16             event_mask;
+       int             (*init)(struct oprofile_operations *ops);
+       int             (*fill_in_addresses)(struct op_msrs * const msrs);
+       void            (*setup_ctrs)(struct op_x86_model_spec const *model,
+                                     struct op_msrs const * const msrs);
+       int             (*check_ctrs)(struct pt_regs * const regs,
+                                     struct op_msrs const * const msrs);
+       void            (*start)(struct op_msrs const * const msrs);
+       void            (*stop)(struct op_msrs const * const msrs);
+       void            (*shutdown)(struct op_msrs const * const msrs);
+#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
+       void            (*switch_ctrl)(struct op_x86_model_spec const *model,
+                                      struct op_msrs const * const msrs);
+#endif
+};
+
+struct op_counter_config;
+
+static inline void op_x86_warn_in_use(int counter)
+{
+       /*
+        * The warning indicates an already running counter. If
+        * oprofile doesn't collect data, then try using a different
+        * performance counter on your platform to monitor the desired
+        * event. Delete counter #%d from the desired event by editing
+        * the /usr/share/oprofile/%s/<cpu>/events file. If the event
+        * cannot be monitored by any other counter, contact your
+        * hardware or BIOS vendor.
+        */
+       pr_warning("oprofile: counter #%d on cpu #%d may already be used\n",
+                  counter, smp_processor_id());
+}
+
+static inline void op_x86_warn_reserved(int counter)
+{
+       pr_warning("oprofile: counter #%d is already reserved\n", counter);
+}
+
+extern u64 op_x86_get_ctrl(struct op_x86_model_spec const *model,
+                          struct op_counter_config *counter_config);
+extern int op_x86_phys_to_virt(int phys);
+extern int op_x86_virt_to_phys(int virt);
+
+extern struct op_x86_model_spec op_ppro_spec;
+extern struct op_x86_model_spec op_p4_spec;
+extern struct op_x86_model_spec op_p4_ht2_spec;
+extern struct op_x86_model_spec op_amd_spec;
+extern struct op_x86_model_spec op_arch_perfmon_spec;
+
+#endif /* OP_X86_MODEL_H */