arm: tegra: la: refactor la code.

This is necessary to support future tegra SOC's.

Change-Id: I2f6ce328e30a6895dce16d82c4097291339155cd
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
Reviewed-on: http://git-master/r/123146
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Jon Mayo <jmayo@nvidia.com>
Reviewed-by: Mark Stadler <mastadler@nvidia.com>
GVS: Gerrit_Virtual_Submit

1 files changed, 71 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/la_priv_common.h b/arch/arm/mach-tegra/la_priv_common.h
new file mode 100644
index 000000000000..5b487e5970c5
--- /dev/null
+++ b/arch/arm/mach-tegra/la_priv_common.h
@@ -0,0 +1,71 @@
+/*
+ * arch/arm/mach-tegra/la_priv_common.h
+ *
+ * Copyright (C) 2012 NVIDIA Corporation.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#ifndef _MACH_TEGRA_LA_PRIV_H_
+#define _MACH_TEGRA_LA_PRIV_H_
+
+/* maximum valid value for latency allowance */
+#define MC_LA_MAX_VALUE		255
+
+#define MC_RA(r) \
+	((u32)IO_ADDRESS(TEGRA_MC_BASE) + (MC_##r))
+#define RA(r) \
+	((u32)IO_ADDRESS(TEGRA_MC_BASE) + (MC_LA_##r))
+
+#define MASK(x) \
+	((0xFFFFFFFFUL >> (31 - (1 ? x) + (0 ? x))) << (0 ? x))
+#define SHIFT(x) \
+	(0 ? x)
+#define ID(id) \
+	TEGRA_LA_##id
+
+#define LA_INFO(f, e, a, r, id, ss) \
+{f, e, RA(a), MASK(r), SHIFT(r), ID(id), __stringify(id), ss}
+
+struct la_client_info {
+	unsigned int fifo_size_in_atoms;
+	unsigned int expiration_in_ns;	/* worst case expiration value */
+	unsigned long reg_addr;
+	unsigned long mask;
+	unsigned long shift;
+	enum tegra_la_id id;
+	char *name;
+	bool scaling_supported;
+};
+
+struct la_scaling_info {
+	unsigned int threshold_low;
+	unsigned int threshold_mid;
+	unsigned int threshold_high;
+	int scaling_ref_count;
+	int actual_la_to_set;
+	int la_set;
+};
+
+struct la_scaling_reg_info {
+	enum tegra_la_id id;
+	unsigned int tl_reg_addr;
+	unsigned int tl_mask;
+	unsigned int tl_shift;
+	unsigned int tm_reg_addr;
+	unsigned int tm_mask;
+	unsigned int tm_shift;
+	unsigned int th_reg_addr;
+	unsigned int th_mask;
+	unsigned int th_shift;
+};
+
+#endif /* _MACH_TEGRA_LA_PRIV_H_ */