[POWERPC] cell: Move PMU-related stuff to include/asm-powerpc/cell-pmu.h

Move some PMU-related macros and function prototypes from cbe_regs.h
and pmu.h in arch/powerpc/platforms/cell/ to a new header at
include/asm-powerpc/cell-pmu.h

This is cleaner to use from the oprofile code, since that sits in
arch/powerpc/oprofile, not in the cell platform directory.

Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 90 insertions, 0 deletions

diff --git a/include/asm-powerpc/cell-pmu.h b/include/asm-powerpc/cell-pmu.h
new file mode 100644
index 0000000..c416fe3
--- /dev/null
+++ b/include/asm-powerpc/cell-pmu.h
@@ -0,0 +1,90 @@
+/*
+ * Cell Broadband Engine Performance Monitor
+ *
+ * (C) Copyright IBM Corporation 2006
+ *
+ * Author:
+ *   David Erb (djerb@us.ibm.com)
+ *   Kevin Corry (kevcorry@us.ibm.com)
+ *
+ * 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, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __ASM_CELL_PMU_H__
+#define __ASM_CELL_PMU_H__
+
+/* The Cell PMU has four hardware performance counters, which can be
+ * configured as four 32-bit counters or eight 16-bit counters.
+ */
+#define NR_PHYS_CTRS 4
+#define NR_CTRS      (NR_PHYS_CTRS * 2)
+
+/* Macros for the pm_control register. */
+#define CBE_PM_16BIT_CTR(ctr)              (1 << (24 - ((ctr) & (NR_PHYS_CTRS - 1))))
+#define CBE_PM_ENABLE_PERF_MON             0x80000000
+#define CBE_PM_STOP_AT_MAX                 0x40000000
+#define CBE_PM_TRACE_MODE_GET(pm_control)  (((pm_control) >> 28) & 0x3)
+#define CBE_PM_TRACE_MODE_SET(mode)        (((mode)  & 0x3) << 28)
+#define CBE_PM_COUNT_MODE_SET(count)       (((count) & 0x3) << 18)
+#define CBE_PM_FREEZE_ALL_CTRS             0x00100000
+#define CBE_PM_ENABLE_EXT_TRACE            0x00008000
+
+/* Macros for the trace_address register. */
+#define CBE_PM_TRACE_BUF_FULL              0x00000800
+#define CBE_PM_TRACE_BUF_EMPTY             0x00000400
+#define CBE_PM_TRACE_BUF_DATA_COUNT(ta)    ((ta) & 0x3ff)
+#define CBE_PM_TRACE_BUF_MAX_COUNT         0x400
+
+/* Macros for the pm07_control registers. */
+#define CBE_PM_CTR_INPUT_MUX(pm07_control) (((pm07_control) >> 26) & 0x3f)
+#define CBE_PM_CTR_INPUT_CONTROL           0x02000000
+#define CBE_PM_CTR_POLARITY                0x01000000
+#define CBE_PM_CTR_COUNT_CYCLES            0x00800000
+#define CBE_PM_CTR_ENABLE                  0x00400000
+
+/* Macros for the pm_status register. */
+#define CBE_PM_CTR_OVERFLOW_INTR(ctr)      (1 << (31 - ((ctr) & 7)))
+
+enum pm_reg_name {
+	group_control,
+	debug_bus_control,
+	trace_address,
+	ext_tr_timer,
+	pm_status,
+	pm_control,
+	pm_interval,
+	pm_start_stop,
+};
+
+/* Routines for reading/writing the PMU registers. */
+extern u32  cbe_read_phys_ctr(u32 cpu, u32 phys_ctr);
+extern void cbe_write_phys_ctr(u32 cpu, u32 phys_ctr, u32 val);
+extern u32  cbe_read_ctr(u32 cpu, u32 ctr);
+extern void cbe_write_ctr(u32 cpu, u32 ctr, u32 val);
+
+extern u32  cbe_read_pm07_control(u32 cpu, u32 ctr);
+extern void cbe_write_pm07_control(u32 cpu, u32 ctr, u32 val);
+extern u32  cbe_read_pm(u32 cpu, enum pm_reg_name reg);
+extern void cbe_write_pm(u32 cpu, enum pm_reg_name reg, u32 val);
+
+extern u32  cbe_get_ctr_size(u32 cpu, u32 phys_ctr);
+extern void cbe_set_ctr_size(u32 cpu, u32 phys_ctr, u32 ctr_size);
+
+extern void cbe_enable_pm(u32 cpu);
+extern void cbe_disable_pm(u32 cpu);
+
+extern void cbe_read_trace_buffer(u32 cpu, u64 *buf);
+
+#endif /* __ASM_CELL_PMU_H__ */