--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020 Marvell International Ltd.
+ */
+
+#ifndef __OCTEON_MODEL_H__
+#define __OCTEON_MODEL_H__
+
+/*
+ * NOTE: These must match what is checked in common-config.mk
+ * Defines to represent the different versions of Octeon.
+ *
+ * IMPORTANT: When the default pass is updated for an Octeon Model,
+ * the corresponding change must also be made in the oct-sim script.
+ *
+ * The defines below should be used with the OCTEON_IS_MODEL() macro to
+ * determine what model of chip the software is running on. Models ending
+ * in 'XX' match multiple models (families), while specific models match only
+ * that model. If a pass (revision) is specified, then only that revision
+ * will be matched. Care should be taken when checking for both specific
+ * models and families that the specific models are checked for first.
+ * While these defines are similar to the processor ID, they are not intended
+ * to be used by anything other that the OCTEON_IS_MODEL framework, and
+ * the values are subject to change at anytime without notice.
+ *
+ * NOTE: only the OCTEON_IS_MODEL() macro/function and the OCTEON_CN* macros
+ * should be used outside of this file. All other macros are for internal
+ * use only, and may change without notice.
+ */
+
+#define OCTEON_FAMILY_MASK 0x00ffff00
+#define OCTEON_PRID_MASK 0x00ffffff
+
+/* Flag bits in top byte */
+/* Ignores revision in model checks */
+#define OM_IGNORE_REVISION 0x01000000
+/* Check submodels */
+#define OM_CHECK_SUBMODEL 0x02000000
+/* Match all models previous than the one specified */
+#define OM_MATCH_PREVIOUS_MODELS 0x04000000
+/* Ignores the minor revison on newer parts */
+#define OM_IGNORE_MINOR_REVISION 0x08000000
+#define OM_FLAG_MASK 0xff000000
+
+/* Match all cn5XXX Octeon models. */
+#define OM_MATCH_5XXX_FAMILY_MODELS 0x20000000
+/* Match all cn6XXX Octeon models. */
+#define OM_MATCH_6XXX_FAMILY_MODELS 0x40000000
+/* Match all cnf7XXX Octeon models. */
+#define OM_MATCH_F7XXX_FAMILY_MODELS 0x80000000
+/* Match all cn7XXX Octeon models. */
+#define OM_MATCH_7XXX_FAMILY_MODELS 0x10000000
+#define OM_MATCH_FAMILY_MODELS (OM_MATCH_5XXX_FAMILY_MODELS | \
+ OM_MATCH_6XXX_FAMILY_MODELS | \
+ OM_MATCH_F7XXX_FAMILY_MODELS | \
+ OM_MATCH_7XXX_FAMILY_MODELS)
+
+/*
+ * CN7XXX models with new revision encoding
+ */
+
+#define OCTEON_CNF75XX_PASS1_0 0x000d9800
+#define OCTEON_CNF75XX_PASS1_2 0x000d9802
+#define OCTEON_CNF75XX_PASS1_3 0x000d9803
+#define OCTEON_CNF75XX (OCTEON_CNF75XX_PASS1_0 | OM_IGNORE_REVISION)
+#define OCTEON_CNF75XX_PASS1_X \
+ (OCTEON_CNF75XX_PASS1_0 | OM_IGNORE_MINOR_REVISION)
+
+#define OCTEON_CN73XX_PASS1_0 0x000d9700
+#define OCTEON_CN73XX_PASS1_1 0x000d9701
+#define OCTEON_CN73XX_PASS1_2 0x000d9702
+#define OCTEON_CN73XX_PASS1_3 0x000d9703
+#define OCTEON_CN73XX (OCTEON_CN73XX_PASS1_0 | OM_IGNORE_REVISION)
+#define OCTEON_CN73XX_PASS1_X \
+ (OCTEON_CN73XX_PASS1_0 | OM_IGNORE_MINOR_REVISION)
+
+#define OCTEON_CN72XX OCTEON_CN73XX
+
+#define OCTEON_CN23XX OCTEON_CN73XX
+#define OCTEON_CN23XX_PASS1_2 OCTEON_CN73XX_PASS1_2
+#define OCTEON_CN23XX_PASS1_3 OCTEON_CN73XX_PASS1_3
+
+#define OCTEON_CN70XX_PASS1_0 0x000d9600
+#define OCTEON_CN70XX_PASS1_1 0x000d9601
+#define OCTEON_CN70XX_PASS1_2 0x000d9602
+
+#define OCTEON_CN70XX_PASS2_0 0x000d9608
+
+#define OCTEON_CN70XX (OCTEON_CN70XX_PASS1_0 | OM_IGNORE_REVISION)
+#define OCTEON_CN70XX_PASS1_X \
+ (OCTEON_CN70XX_PASS1_0 | OM_IGNORE_MINOR_REVISION)
+#define OCTEON_CN70XX_PASS2_X \
+ (OCTEON_CN70XX_PASS2_0 | OM_IGNORE_MINOR_REVISION)
+
+#define OCTEON_CN71XX OCTEON_CN70XX
+
+#define OCTEON_CN78XX_PASS1_0 0x000d9500
+#define OCTEON_CN78XX_PASS1_1 0x000d9501
+#define OCTEON_CN78XX_PASS2_0 0x000d9508
+
+#define OCTEON_CN78XX (OCTEON_CN78XX_PASS2_0 | OM_IGNORE_REVISION)
+#define OCTEON_CN78XX_PASS1_X \
+ (OCTEON_CN78XX_PASS1_0 | OM_IGNORE_MINOR_REVISION)
+#define OCTEON_CN78XX_PASS2_X \
+ (OCTEON_CN78XX_PASS2_0 | OM_IGNORE_MINOR_REVISION)
+
+#define OCTEON_CN76XX (0x000d9540 | OM_CHECK_SUBMODEL)
+
+/*
+ * CNF7XXX models with new revision encoding
+ */
+#define OCTEON_CNF71XX_PASS1_0 0x000d9400
+#define OCTEON_CNF71XX_PASS1_1 0x000d9401
+
+#define OCTEON_CNF71XX (OCTEON_CNF71XX_PASS1_0 | OM_IGNORE_REVISION)
+#define OCTEON_CNF71XX_PASS1_X \
+ (OCTEON_CNF71XX_PASS1_0 | OM_IGNORE_MINOR_REVISION)
+
+/*
+ * CN6XXX models with new revision encoding
+ */
+#define OCTEON_CN68XX_PASS1_0 0x000d9100
+#define OCTEON_CN68XX_PASS1_1 0x000d9101
+#define OCTEON_CN68XX_PASS2_0 0x000d9108
+#define OCTEON_CN68XX_PASS2_1 0x000d9109
+#define OCTEON_CN68XX_PASS2_2 0x000d910a
+
+#define OCTEON_CN68XX (OCTEON_CN68XX_PASS2_0 | OM_IGNORE_REVISION)
+#define OCTEON_CN68XX_PASS1_X \
+ (OCTEON_CN68XX_PASS1_0 | OM_IGNORE_MINOR_REVISION)
+#define OCTEON_CN68XX_PASS2_X \
+ (OCTEON_CN68XX_PASS2_0 | OM_IGNORE_MINOR_REVISION)
+
+#define OCTEON_CN68XX_PASS1 OCTEON_CN68XX_PASS1_X
+#define OCTEON_CN68XX_PASS2 OCTEON_CN68XX_PASS2_X
+
+#define OCTEON_CN66XX_PASS1_0 0x000d9200
+#define OCTEON_CN66XX_PASS1_2 0x000d9202
+
+#define OCTEON_CN66XX (OCTEON_CN66XX_PASS1_0 | OM_IGNORE_REVISION)
+#define OCTEON_CN66XX_PASS1_X \
+ (OCTEON_CN66XX_PASS1_0 | OM_IGNORE_MINOR_REVISION)
+
+#define OCTEON_CN63XX_PASS1_0 0x000d9000
+#define OCTEON_CN63XX_PASS1_1 0x000d9001
+#define OCTEON_CN63XX_PASS1_2 0x000d9002
+#define OCTEON_CN63XX_PASS2_0 0x000d9008
+#define OCTEON_CN63XX_PASS2_1 0x000d9009
+#define OCTEON_CN63XX_PASS2_2 0x000d900a
+
+#define OCTEON_CN63XX (OCTEON_CN63XX_PASS2_0 | OM_IGNORE_REVISION)
+#define OCTEON_CN63XX_PASS1_X \
+ (OCTEON_CN63XX_PASS1_0 | OM_IGNORE_MINOR_REVISION)
+#define OCTEON_CN63XX_PASS2_X \
+ (OCTEON_CN63XX_PASS2_0 | OM_IGNORE_MINOR_REVISION)
+
+/* CN62XX is same as CN63XX with 1 MB cache */
+#define OCTEON_CN62XX OCTEON_CN63XX
+
+#define OCTEON_CN61XX_PASS1_0 0x000d9300
+#define OCTEON_CN61XX_PASS1_1 0x000d9301
+
+#define OCTEON_CN61XX (OCTEON_CN61XX_PASS1_0 | OM_IGNORE_REVISION)
+#define OCTEON_CN61XX_PASS1_X \
+ (OCTEON_CN61XX_PASS1_0 | OM_IGNORE_MINOR_REVISION)
+
+/* CN60XX is same as CN61XX with 512 KB cache */
+#define OCTEON_CN60XX OCTEON_CN61XX
+
+/* This matches the complete family of CN3xxx CPUs, and not subsequent models */
+#define OCTEON_CN6XXX \
+ (OCTEON_CN63XX_PASS1_0 | OM_MATCH_6XXX_FAMILY_MODELS)
+#define OCTEON_CNF7XXX \
+ (OCTEON_CNF71XX_PASS1_0 | OM_MATCH_F7XXX_FAMILY_MODELS)
+#define OCTEON_CN7XXX \
+ (OCTEON_CN78XX_PASS1_0 | OM_MATCH_7XXX_FAMILY_MODELS)
+
+/*
+ * The revision byte (low byte) has two different encodings.
+ * CN3XXX:
+ *
+ * bits
+ * <7:5>: reserved (0)
+ * <4>: alternate package
+ * <3:0>: revision
+ *
+ * CN5XXX and older models:
+ *
+ * bits
+ * <7>: reserved (0)
+ * <6>: alternate package
+ * <5:3>: major revision
+ * <2:0>: minor revision
+ */
+
+/* Masks used for the various types of model/family/revision matching */
+#define OCTEON_38XX_FAMILY_MASK 0x00ffff00
+#define OCTEON_38XX_FAMILY_REV_MASK 0x00ffff0f
+#define OCTEON_38XX_MODEL_MASK 0x00ffff10
+#define OCTEON_38XX_MODEL_REV_MASK \
+ (OCTEON_38XX_FAMILY_REV_MASK | OCTEON_38XX_MODEL_MASK)
+
+/* CN5XXX and later use different layout of bits in the revision ID field */
+#define OCTEON_58XX_FAMILY_MASK OCTEON_38XX_FAMILY_MASK
+#define OCTEON_58XX_FAMILY_REV_MASK 0x00ffff3f
+#define OCTEON_58XX_MODEL_MASK 0x00ffff40
+#define OCTEON_58XX_MODEL_REV_MASK \
+ (OCTEON_58XX_FAMILY_REV_MASK | OCTEON_58XX_MODEL_MASK)
+#define OCTEON_58XX_MODEL_MINOR_REV_MASK \
+ (OCTEON_58XX_MODEL_REV_MASK & 0x00ffff38)
+#define OCTEON_5XXX_MODEL_MASK 0x00ff0fc0
+
+#define __OCTEON_MATCH_MASK__(X, Y, Z) \
+ ({ \
+ typeof(X) x = (X); \
+ typeof(Y) y = (Y); \
+ typeof(Z) z = (Z); \
+ (x & z) == (y & z); \
+ })
+
+/*
+ * __OCTEON_IS_MODEL_COMPILE__(arg_model, chip_model)
+ * returns true if chip_model is identical or belong to the OCTEON
+ * model group specified in arg_model.
+ */
+
+/* Helper macros to make to following macro compacter */
+#define OM_MASK OM_FLAG_MASK
+#define OM_MATCH_MASK __OCTEON_MATCH_MASK__
+#define OM_MATCH_PREVIOUS OM_MATCH_PREVIOUS_MODELS
+
+#define __OCTEON_IS_MODEL_COMPILE__(A, B) \
+ ({ \
+ typeof(A) a = (A); \
+ typeof(B) b = (B); \
+ (((((((a) & OM_MASK) == (OM_IGNORE_REVISION | OM_CHECK_SUBMODEL)) && \
+ OM_MATCH_MASK((b), (a), OCTEON_58XX_MODEL_MASK)) || \
+ ((((a) & OM_MASK) == 0) && \
+ OM_MATCH_MASK((b), (a), OCTEON_58XX_FAMILY_REV_MASK)) || \
+ ((((a) & OM_MASK) == OM_IGNORE_MINOR_REVISION) && \
+ OM_MATCH_MASK((b), (a), OCTEON_58XX_MODEL_MINOR_REV_MASK)) || \
+ ((((a) & OM_MASK) == OM_CHECK_SUBMODEL) && \
+ OM_MATCH_MASK((b), (a), OCTEON_58XX_MODEL_MASK)) || \
+ ((((a) & OM_MASK) == OM_IGNORE_REVISION) && \
+ OM_MATCH_MASK((b), (a), OCTEON_58XX_FAMILY_MASK)) || \
+ ((((a) & (OM_MATCH_5XXX_FAMILY_MODELS)) == \
+ OM_MATCH_5XXX_FAMILY_MODELS) && \
+ ((b & OCTEON_PRID_MASK) < OCTEON_CN63XX_PASS1_0)) || \
+ ((((a) & (OM_MATCH_6XXX_FAMILY_MODELS)) == \
+ OM_MATCH_6XXX_FAMILY_MODELS) && \
+ ((b & OCTEON_PRID_MASK) >= OCTEON_CN63XX_PASS1_0) && \
+ ((b & OCTEON_PRID_MASK) < OCTEON_CNF71XX_PASS1_0)) || \
+ ((((a) & (OM_MATCH_F7XXX_FAMILY_MODELS)) == \
+ OM_MATCH_F7XXX_FAMILY_MODELS) && \
+ ((b & OCTEON_PRID_MASK) >= OCTEON_CNF71XX_PASS1_0) && \
+ ((b & OCTEON_PRID_MASK) < OCTEON_CN78XX_PASS1_0)) || \
+ ((((a) & (OM_MATCH_7XXX_FAMILY_MODELS)) == \
+ OM_MATCH_7XXX_FAMILY_MODELS) && ((b & OCTEON_PRID_MASK) >= \
+ OCTEON_CN78XX_PASS1_0)) || \
+ ((((a) & (OM_MATCH_PREVIOUS)) == OM_MATCH_PREVIOUS) && \
+ (((b) & OCTEON_58XX_MODEL_MASK) < ((a) & OCTEON_58XX_MODEL_MASK))) \
+ ))); \
+ })
+
+#ifndef OCTEON_IS_MODEL
+
+static inline int __octeon_is_model_runtime_internal__(u32 model)
+{
+ u32 cpuid = read_c0_prid();
+
+ return __OCTEON_IS_MODEL_COMPILE__(model, cpuid);
+}
+
+static inline int __octeon_is_model_runtime__(u32 model)
+{
+ return __octeon_is_model_runtime_internal__(model);
+}
+
+/*
+ * The OCTEON_IS_MODEL macro should be used for all Octeon model checking done
+ * in a program.
+ * This should be kept runtime if at all possible and must be conditionalized
+ * with OCTEON_IS_COMMON_BINARY() if runtime checking support is required.
+ *
+ * Use of the macro in preprocessor directives ( #if OCTEON_IS_MODEL(...) )
+ * is NOT SUPPORTED, and should be replaced with CVMX_COMPILED_FOR()
+ * I.e.:
+ * #if OCTEON_IS_MODEL(OCTEON_CN56XX) -> #if CVMX_COMPILED_FOR(OCTEON_CN56XX)
+ */
+#define OCTEON_IS_MODEL(x) __octeon_is_model_runtime__(x)
+#define OCTEON_IS_COMMON_BINARY() 1
+#undef OCTEON_MODEL
+#endif
+
+#define OCTEON_IS_OCTEON2() \
+ (OCTEON_IS_MODEL(OCTEON_CN6XXX) || OCTEON_IS_MODEL(OCTEON_CNF71XX))
+
+#define OCTEON_IS_OCTEON3() OCTEON_IS_MODEL(OCTEON_CN7XXX)
+
+const char *octeon_model_get_string(u32 chip_id);
+const char *octeon_model_get_string_buffer(u32 chip_id, char *buffer);
+
+/**
+ * Return the octeon family, i.e., ProcessorID of the PrID register.
+ *
+ * @return the octeon family on success, ((u32)-1) on error.
+ */
+static inline u32 cvmx_get_octeon_family(void)
+{
+ return (read_c0_prid() & OCTEON_FAMILY_MASK);
+}
+
+#endif /* __OCTEON_MODEL_H__ */
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