1 files changed, 137 insertions, 0 deletions

diff --git a/arch/mips/include/asm/netlogic/mips-extns.h b/arch/mips/include/asm/netlogic/mips-extns.h
index c9f6de53d410..32ba6d95d47c 100644
--- a/arch/mips/include/asm/netlogic/mips-extns.h
+++ b/arch/mips/include/asm/netlogic/mips-extns.h
@@ -78,4 +78,141 @@ static inline int nlm_nodeid(void)
         return (__read_32bit_c0_register($15, 1) >> 5) & 0x3;
 }
 
+static inline unsigned int nlm_core_id(void)
+{
+        return (read_c0_ebase() & 0x1c) >> 2;
+}
+
+static inline unsigned int nlm_thread_id(void)
+{
+        return read_c0_ebase() & 0x3;
+}
+
+#define __read_64bit_c2_split(source, sel)                              \
+({                                                                      \
+        unsigned long long __val;                                       \
+        unsigned long __flags;                                          \
+                                                                        \
+        local_irq_save(__flags);                                        \
+        if (sel == 0)                                                   \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips64\n\t"                              \
+                        "dmfc2\t%M0, " #source "\n\t"                   \
+                        "dsll\t%L0, %M0, 32\n\t"                        \
+                        "dsra\t%M0, %M0, 32\n\t"                        \
+                        "dsra\t%L0, %L0, 32\n\t"                        \
+                        ".set\tmips0\n\t"                               \
+                        : "=r" (__val));                                \
+        else                                                            \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips64\n\t"                              \
+                        "dmfc2\t%M0, " #source ", " #sel "\n\t"         \
+                        "dsll\t%L0, %M0, 32\n\t"                        \
+                        "dsra\t%M0, %M0, 32\n\t"                        \
+                        "dsra\t%L0, %L0, 32\n\t"                        \
+                        ".set\tmips0\n\t"                               \
+                        : "=r" (__val));                                \
+        local_irq_restore(__flags);                                     \
+                                                                        \
+        __val;                                                          \
+})
+
+#define __write_64bit_c2_split(source, sel, val)                        \
+do {                                                                    \
+        unsigned long __flags;                                          \
+                                                                        \
+        local_irq_save(__flags);                                        \
+        if (sel == 0)                                                   \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips64\n\t"                              \
+                        "dsll\t%L0, %L0, 32\n\t"                        \
+                        "dsrl\t%L0, %L0, 32\n\t"                        \
+                        "dsll\t%M0, %M0, 32\n\t"                        \
+                        "or\t%L0, %L0, %M0\n\t"                         \
+                        "dmtc2\t%L0, " #source "\n\t"                   \
+                        ".set\tmips0\n\t"                               \
+                        : : "r" (val));                                 \
+        else                                                            \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips64\n\t"                              \
+                        "dsll\t%L0, %L0, 32\n\t"                        \
+                        "dsrl\t%L0, %L0, 32\n\t"                        \
+                        "dsll\t%M0, %M0, 32\n\t"                        \
+                        "or\t%L0, %L0, %M0\n\t"                         \
+                        "dmtc2\t%L0, " #source ", " #sel "\n\t"         \
+                        ".set\tmips0\n\t"                               \
+                        : : "r" (val));                                 \
+        local_irq_restore(__flags);                                     \
+} while (0)
+
+#define __read_32bit_c2_register(source, sel)                           \
+({ uint32_t __res;                                                      \
+        if (sel == 0)                                                   \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips32\n\t"                              \
+                        "mfc2\t%0, " #source "\n\t"                     \
+                        ".set\tmips0\n\t"                               \
+                        : "=r" (__res));                                \
+        else                                                            \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips32\n\t"                              \
+                        "mfc2\t%0, " #source ", " #sel "\n\t"           \
+                        ".set\tmips0\n\t"                               \
+                        : "=r" (__res));                                \
+        __res;                                                          \
+})
+
+#define __read_64bit_c2_register(source, sel)                           \
+({ unsigned long long __res;                                            \
+        if (sizeof(unsigned long) == 4)                                 \
+                __res = __read_64bit_c2_split(source, sel);             \
+        else if (sel == 0)                                              \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips64\n\t"                              \
+                        "dmfc2\t%0, " #source "\n\t"                    \
+                        ".set\tmips0\n\t"                               \
+                        : "=r" (__res));                                \
+        else                                                            \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips64\n\t"                              \
+                        "dmfc2\t%0, " #source ", " #sel "\n\t"          \
+                        ".set\tmips0\n\t"                               \
+                        : "=r" (__res));                                \
+        __res;                                                          \
+})
+
+#define __write_64bit_c2_register(register, sel, value)                 \
+do {                                                                    \
+        if (sizeof(unsigned long) == 4)                                 \
+                __write_64bit_c2_split(register, sel, value);           \
+        else if (sel == 0)                                              \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips64\n\t"                              \
+                        "dmtc2\t%z0, " #register "\n\t"                 \
+                        ".set\tmips0\n\t"                               \
+                        : : "Jr" (value));                              \
+        else                                                            \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips64\n\t"                              \
+                        "dmtc2\t%z0, " #register ", " #sel "\n\t"       \
+                        ".set\tmips0\n\t"                               \
+                        : : "Jr" (value));                              \
+} while (0)
+
+#define __write_32bit_c2_register(reg, sel, value)                      \
+({                                                                      \
+        if (sel == 0)                                                   \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips32\n\t"                              \
+                        "mtc2\t%z0, " #reg "\n\t"                       \
+                        ".set\tmips0\n\t"                               \
+                        : : "Jr" (value));                              \
+        else                                                            \
+                __asm__ __volatile__(                                   \
+                        ".set\tmips32\n\t"                              \
+                        "mtc2\t%z0, " #reg ", " #sel "\n\t"             \
+                        ".set\tmips0\n\t"                               \
+                        : : "Jr" (value));                              \
+})
+
 #endif /*_ASM_NLM_MIPS_EXTS_H */