1 files changed, 78 insertions, 0 deletions
diff --git a/hwpf/include/plat/plat_hw_access.H b/hwpf/include/plat/plat_hw_access.H
new file mode 100644
index 00000000..7d8e3c86
--- /dev/null
+++ b/hwpf/include/plat/plat_hw_access.H
@@ -0,0 +1,78 @@
+/**
+ *  @file plat_hw_access.H
+ *
+ *  @brief Define platform specific calls for PPE Platforms that use the machine
+ *  check function of the PPE to deal with errors (eg no explicit return codes
+ *  returned)
+ */
+
+#ifndef PLATHWACCESS_H_
+#define PLATHWACCESS_H_
+
+#include <plat_includes.H>
+
+/// PIB Error Mask
+
+#define PLAT_SET_PIB_ERROR_MASK(_m_mask) \
+    {   /*  Read MSR */ \
+        uint32_t msr_data = mfmsr(); \
+        /* Set SEM field */ \
+        msr_data &= ~(BITS(0,8)); \
+        msr_data |= (uint32_t)(i_mask << 24); \
+        /* Write MSR */ \
+        mtmsr(msr_data); \
+    };
+    
+#define PLAT_GET_PIB_ERROR_MASK(_m_mask) \
+        uint8_t _m_mask; \
+        uint32_t _sem = mfmsr(); \
+        _m_mask = (uint8_t)((_sem & MSR_SEM) >> (32-(MSR_SEM_START_BIT + MSR_SEM_LEN)));
+        
+// Building block PPE instructions
+#define PPE_MFMSR(_m_data) \
+asm volatile \
+    ( \
+    "mfmsr %[data] \n" \
+    :  [data]"=&r"(*_m_data) \
+    :  "[data]"(*_m_data) \
+    );
+
+#define PPE_MTMSR(_m_data) \
+asm volatile \
+    ( \
+    "mtmsr %[data] \n" \
+    :  [data]"=&r"(*_m_data) \
+    :  "[data]"(*_m_data) \
+    );
+
+
+/// GetScom   
+#define PLAT_GETSCOM(_m_rc, _m_base, _m_offset, _m_data) \
+    PPE_LVDX(_m_base.getAddressOverlay(), (uint32_t)(_m_offset & BITS(40,24)), _m_data)
+    
+/// PutScom
+#define PLAT_PUTSCOM(_m_rc, _m_base, _m_offset, _m_data) \
+    PPE_STVDX(_m_base.getAddressOverlay(), (uint32_t)(_m_offset & BITS(40,24)), _m_data)
+    
+/// ModifyScom
+#define PLAT_MODSCOM(_m_base, _m_offset, _m_data, _m_mode) \
+    PPE_STVDX(_m_base.getAddressOverlay(), _m_offset, _m_data)
+
+
+/// GetCFAM  
+#define PLAT_GETCFAM(_m_base, _m_offset, _m_data) \
+    static_assert( K == TARGET_TYPE_NONE, \
+                  "getCfamRegister is not supported by PPE platforms")
+
+/// PutCFAM
+#define PLAT_PUTCFAM(_m_base, _m_offset, _m_data) \
+     static_assert( K == TARGET_TYPE_NONE, \
+                  "putCfamRegister is not supported by PPE platforms")
+                  
+/// ModifyCFAM
+#define PLAT_MODCFAM(_m_base, _m_offset, _m_data, _m_mode) \
+     static_assert( K == TARGET_TYPE_NONE, \
+                  "modifyCfamRegister is not supported by PPE platforms")
+
+#endif // PLATHWACCESS_H_
+