Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / powerpc / include / asm / oprofile_impl.h

diff --git a/kernel/arch/powerpc/include/asm/oprofile_impl.h b/kernel/arch/powerpc/include/asm/oprofile_impl.h
new file mode 100644 (file)
index 0000000..61fe5d6
--- /dev/null
+++ b/kernel/arch/powerpc/include/asm/oprofile_impl.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
+ *
+ * Based on alpha version.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _ASM_POWERPC_OPROFILE_IMPL_H
+#define _ASM_POWERPC_OPROFILE_IMPL_H
+#ifdef __KERNEL__
+
+#define OP_MAX_COUNTER 8
+
+/* Per-counter configuration as set via oprofilefs.  */
+struct op_counter_config {
+       unsigned long enabled;
+       unsigned long event;
+       unsigned long count;
+       /* Classic doesn't support per-counter user/kernel selection */
+       unsigned long kernel;
+       unsigned long user;
+       unsigned long unit_mask;
+};
+
+/* System-wide configuration as set via oprofilefs.  */
+struct op_system_config {
+#ifdef CONFIG_PPC64
+       unsigned long mmcr0;
+       unsigned long mmcr1;
+       unsigned long mmcra;
+#ifdef CONFIG_OPROFILE_CELL
+       /* Register for oprofile user tool to check cell kernel profiling
+        * support.
+        */
+       unsigned long cell_support;
+#endif
+#endif
+       unsigned long enable_kernel;
+       unsigned long enable_user;
+};
+
+/* Per-arch configuration */
+struct op_powerpc_model {
+       int (*reg_setup) (struct op_counter_config *,
+                          struct op_system_config *,
+                          int num_counters);
+       int  (*cpu_setup) (struct op_counter_config *);
+       int  (*start) (struct op_counter_config *);
+       int  (*global_start) (struct op_counter_config *);
+       void (*stop) (void);
+       void (*global_stop) (void);
+       int (*sync_start)(void);
+       int (*sync_stop)(void);
+       void (*handle_interrupt) (struct pt_regs *,
+                                 struct op_counter_config *);
+       int num_counters;
+};
+
+extern struct op_powerpc_model op_model_fsl_emb;
+extern struct op_powerpc_model op_model_power4;
+extern struct op_powerpc_model op_model_7450;
+extern struct op_powerpc_model op_model_cell;
+extern struct op_powerpc_model op_model_pa6t;
+
+
+/* All the classic PPC parts use these */
+static inline unsigned int classic_ctr_read(unsigned int i)
+{
+       switch(i) {
+       case 0:
+               return mfspr(SPRN_PMC1);
+       case 1:
+               return mfspr(SPRN_PMC2);
+       case 2:
+               return mfspr(SPRN_PMC3);
+       case 3:
+               return mfspr(SPRN_PMC4);
+       case 4:
+               return mfspr(SPRN_PMC5);
+       case 5:
+               return mfspr(SPRN_PMC6);
+
+/* No PPC32 chip has more than 6 so far */
+#ifdef CONFIG_PPC64
+       case 6:
+               return mfspr(SPRN_PMC7);
+       case 7:
+               return mfspr(SPRN_PMC8);
+#endif
+       default:
+               return 0;
+       }
+}
+
+static inline void classic_ctr_write(unsigned int i, unsigned int val)
+{
+       switch(i) {
+       case 0:
+               mtspr(SPRN_PMC1, val);
+               break;
+       case 1:
+               mtspr(SPRN_PMC2, val);
+               break;
+       case 2:
+               mtspr(SPRN_PMC3, val);
+               break;
+       case 3:
+               mtspr(SPRN_PMC4, val);
+               break;
+       case 4:
+               mtspr(SPRN_PMC5, val);
+               break;
+       case 5:
+               mtspr(SPRN_PMC6, val);
+               break;
+
+/* No PPC32 chip has more than 6, yet */
+#ifdef CONFIG_PPC64
+       case 6:
+               mtspr(SPRN_PMC7, val);
+               break;
+       case 7:
+               mtspr(SPRN_PMC8, val);
+               break;
+#endif
+       default:
+               break;
+       }
+}
+
+
+extern void op_powerpc_backtrace(struct pt_regs * const regs, unsigned int depth);
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_OPROFILE_IMPL_H */