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-rw-r--r--import/chips/p9/procedures/hwp/lib/p9_ppe_commands.C1
-rw-r--r--import/chips/p9/procedures/hwp/lib/p9_ppe_commands.H1
-rw-r--r--import/chips/p9/procedures/hwp/lib/p9_ppe_commands.mk1
-rw-r--r--import/chips/p9/procedures/hwp/lib/p9_ppe_state.C1
-rw-r--r--import/chips/p9/procedures/hwp/lib/p9_ppe_state.mk3
-rw-r--r--import/chips/p9/procedures/hwp/lib/p9_ppe_utils.C171
-rw-r--r--import/chips/p9/procedures/hwp/lib/p9_ppe_utils.H319
-rw-r--r--import/chips/p9/procedures/hwp/lib/p9_ppe_utils.mk27
8 files changed, 374 insertions, 150 deletions
diff --git a/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.C b/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.C
index 6ae3ef9a..74331796 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.C
+++ b/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.C
@@ -44,7 +44,6 @@
// Includes
//-----------------------------------------------------------------------------
#include <fapi2.H>
-#include <p9_ppe_utils.C>
#include <p9_ppe_commands.H>
#include <p9_hcd_common.H>
diff --git a/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.H b/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.H
index 8990458d..6f019087 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.H
+++ b/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.H
@@ -36,6 +36,7 @@
#ifndef __P9_PPE_COMMANDS_H__
#define __P9_PPE_COMMANDS_H__
+#include <p9_ppe_utils.H>
typedef struct
{
diff --git a/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.mk b/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.mk
index e63ae20e..77af7356 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.mk
+++ b/import/chips/p9/procedures/hwp/lib/p9_ppe_commands.mk
@@ -25,4 +25,5 @@
PROCEDURE=p9_ppe_commands
$(call ADD_MODULE_SRCDIR,$(PROCEDURE),$(ROOTPATH)/chips/p9/procedures/hwp/lib)
OBJS+=p9_ppe_commands.o
+lib$(PROCEDURE)_DEPLIBS += p9_ppe_utils
$(call BUILD_PROCEDURE)
diff --git a/import/chips/p9/procedures/hwp/lib/p9_ppe_state.C b/import/chips/p9/procedures/hwp/lib/p9_ppe_state.C
index e8af9a9b..0f5a25b6 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_ppe_state.C
+++ b/import/chips/p9/procedures/hwp/lib/p9_ppe_state.C
@@ -46,7 +46,6 @@
#include <fapi2.H>
#include <p9_ppe_state.H>
#include <p9_ppe_utils.H>
-#include <p9_ppe_utils.C>
#include <p9_hcd_common.H>
diff --git a/import/chips/p9/procedures/hwp/lib/p9_ppe_state.mk b/import/chips/p9/procedures/hwp/lib/p9_ppe_state.mk
index 2ba4f811..2e52f426 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_ppe_state.mk
+++ b/import/chips/p9/procedures/hwp/lib/p9_ppe_state.mk
@@ -23,6 +23,5 @@
#
# IBM_PROLOG_END_TAG
PROCEDURE=p9_ppe_state
-$(call ADD_MODULE_SRCDIR,$(PROCEDURE),$(ROOTPATH)/chips/p9/procedures/hwp/lib)
-OBJS+=p9_ppe_state.o
+$(PROCEDURE)_DEPLIBS += p9_ppe_utils
$(call BUILD_PROCEDURE)
diff --git a/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.C b/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.C
index e97a1821..c85f441f 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.C
+++ b/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.C
@@ -182,12 +182,6 @@ uint32_t ppe_getMfcrInstruction( const uint16_t i_Rt )
//-----------------------------------------------------------------------------
-/**
- * @brief poll for Halt state
- * @param[in] i_Rt target register number
- * @return fapi2::ReturnCode
- * @note moves contents of register MSR to i_Rt register.
- */
fapi2::ReturnCode ppe_pollHaltState(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address)
@@ -218,12 +212,6 @@ fapi_try_exit:
//-----------------------------------------------------------------------------
-/**
- * @brief halt the engine
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR with halt bit to halt the engine.
- */
fapi2::ReturnCode ppe_halt(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address)
@@ -242,12 +230,6 @@ fapi_try_exit:
}
//-----------------------------------------------------------------------------
-/**
- * @brief force halt the engine
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR with force halt to force halt the engine.
- */
fapi2::ReturnCode ppe_force_halt(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address)
@@ -268,12 +250,6 @@ fapi_try_exit:
//-----------------------------------------------------------------------------
-/**
- * @brief resume the halted engine
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR with resume bit to resume the engine.
- */
fapi2::ReturnCode ppe_resume(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address)
@@ -302,19 +278,14 @@ fapi2::ReturnCode ppe_resume(
fapi_try_exit:
return fapi2::current_err;
}
+
//-----------------------------------------------------------------------------
-/**
- * @brief update dbcr
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs mtdbcr
- */
fapi2::ReturnCode ppe_update_dbcr(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address,
- const uint64_t l_inst_op,
- const uint16_t l_immed_16,
+ const uint64_t i_inst_op,
+ const uint16_t i_immed_16,
const uint16_t i_Rs)
{
fapi2::buffer<uint64_t> l_data64;
@@ -324,8 +295,8 @@ fapi2::ReturnCode ppe_update_dbcr(
FAPI_DBG("getMfsprInstruction(%d, DBCR): 0x%16llX", i_Rs, l_data64 );
FAPI_TRY(fapi2::putScom(i_target, i_base_address + PPE_XIRAMEDR, l_data64));
//Modify Rs
- l_data64.flush<0>().insertFromRight(ppe_getInstruction(l_inst_op, i_Rs, i_Rs, l_immed_16), 0, 32);
- FAPI_DBG("getInstruction(Immed %X: 0x%16llX", l_immed_16, l_data64 );
+ l_data64.flush<0>().insertFromRight(ppe_getInstruction(i_inst_op, i_Rs, i_Rs, i_immed_16), 0, 32);
+ FAPI_DBG("getInstruction(Immed %X: 0x%16llX", i_immed_16, l_data64 );
FAPI_TRY(fapi2::putScom(i_target, i_base_address + PPE_XIRAMEDR, l_data64));
//MOVE new Rs into DBCR
l_data64.flush<0>().insertFromRight(ppe_getMtsprInstruction(i_Rs, DBCR), 0, 32);
@@ -336,16 +307,12 @@ fapi_try_exit:
return fapi2::current_err;
}
-/**
- * @brief update dacr
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs mtdacr
- */
+//-----------------------------------------------------------------------------
+
fapi2::ReturnCode ppe_update_dacr(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address,
- const uint64_t l_address,
+ const uint64_t i_address,
const uint16_t i_Rs)
{
fapi2::buffer<uint32_t> temp_inst32;
@@ -353,7 +320,7 @@ fapi2::ReturnCode ppe_update_dacr(
temp_data64.flush<0>().insertFromRight(ppe_getMfsprInstruction(i_Rs, SPRG0), 0, 32);
FAPI_DBG("getMfsprInstruction(%d, SPRG0): 0x%16llX", i_Rs, temp_data64 );
- temp_data64.insertFromRight(l_address, 32, 32);
+ temp_data64.insertFromRight(i_address, 32, 32);
FAPI_DBG("Final Instr + SPRG0: 0x%16llX", temp_data64 );
//write sprg0 with address and ram mfsprg0 to i_Rs
FAPI_TRY(fapi2::putScom(i_target, i_base_address + PPE_XIRAMGA, temp_data64 ));
@@ -365,16 +332,9 @@ fapi2::ReturnCode ppe_update_dacr(
fapi_try_exit:
return fapi2::current_err;
}
+
//-----------------------------------------------------------------------------
-/**
- * @brief Perform RAM "read" operation
- * @param[in] i_target Chip Target
- * @param[in] i_base_address Base SCOM address of the PPE
- * @param[in] i_instruction RAM instruction to move a register
- * @param[out] o_data Returned data
- * @return fapi2::ReturnCode
- */
fapi2::ReturnCode ppe_RAMRead(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address,
@@ -393,16 +353,9 @@ fapi2::ReturnCode ppe_RAMRead(
fapi_try_exit:
return fapi2::current_err;
}
+
//-----------------------------------------------------------------------------
-/**
- * @brief Perform RAM "read" operation
- * @param[in] i_target Chip Target
- * @param[in] i_base_address Base SCOM address of the PPE
- * @param[in] i_instruction RAM instruction to move a register
- * @param[out] o_data Returned data
- * @return fapi2::ReturnCode
- */
fapi2::ReturnCode ppe_RAM(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address,
@@ -421,14 +374,9 @@ fapi2::ReturnCode ppe_RAM(
fapi_try_exit:
return fapi2::current_err;
}
+
//-----------------------------------------------------------------------------
-/**
- * @brief single step the engine
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR with single step tosingle step the engine.
- */
fapi2::ReturnCode ppe_single_step(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address,
@@ -535,47 +483,37 @@ fapi2::ReturnCode ppe_single_step(
fapi_try_exit:
return fapi2::current_err;
}
+
//-----------------------------------------------------------------------------
-/**
- * @brief single step the engine
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note output is l_ppe_regs.] which has reg name added along with value and number
- * this will be used for printing in the wrapper
- */
+#ifndef __HOSTBOOT_MODULE
fapi2::ReturnCode ppe_regs_populate_name(
- std::vector<PPERegValue_t> l_ppe_regs_value,
- const std::map<uint16_t, std::string> l_ppe_regs_num_name,
- std::vector<PPEReg_t>& l_ppe_regs)
+ std::vector<PPERegValue_t> i_ppe_regs_value,
+ const std::map<uint16_t, std::string> i_ppe_regs_num_name,
+ std::vector<PPEReg_t>& i_ppe_regs)
{
PPEReg_t l_reg;
FAPI_INF(" populating reg names");
- if (!l_ppe_regs_value.empty())
+ if (!i_ppe_regs_value.empty())
{
- for (auto it : l_ppe_regs_value)
+ for (auto it : i_ppe_regs_value)
{
- auto search = l_ppe_regs_num_name.find(it.number);
+ auto search = i_ppe_regs_num_name.find(it.number);
l_reg.name = search->second;
l_reg.reg = it;
- l_ppe_regs.push_back(l_reg);
+ i_ppe_regs.push_back(l_reg);
}
}
return fapi2::current_err;
}
+#endif
//-----------------------------------------------------------------------------
-/**
- * @brief clear the dbg status engine
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR to clear dbg status.
- */
fapi2::ReturnCode ppe_clear_dbg(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address)
@@ -591,14 +529,9 @@ fapi2::ReturnCode ppe_clear_dbg(
fapi_try_exit:
return fapi2::current_err;
}
+
//-----------------------------------------------------------------------------
-/**
- * @brief toggle TRH
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR to toggle trh.
- */
fapi2::ReturnCode ppe_toggle_trh(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address)
@@ -613,14 +546,9 @@ fapi2::ReturnCode ppe_toggle_trh(
fapi_try_exit:
return fapi2::current_err;
}
+
//-----------------------------------------------------------------------------
-/**
- * @brief xcr soft reset
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR to give soft reset
- */
fapi2::ReturnCode ppe_soft_reset(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address)
@@ -637,12 +565,6 @@ fapi_try_exit:
}
//-----------------------------------------------------------------------------
-/**
- * @brief xcr hard reset
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR to give hard reset
- */
fapi2::ReturnCode ppe_hard_reset(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address)
@@ -659,12 +581,6 @@ fapi_try_exit:
}
//-----------------------------------------------------------------------------
-/**
- * @brief xcr resume only
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR to only resume
- */
fapi2::ReturnCode ppe_resume_only(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address)
@@ -681,12 +597,6 @@ fapi_try_exit:
}
//-----------------------------------------------------------------------------
-/**
- * @brief only single step the engine
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note programs XCR with single step no clearing DBCR
- */
fapi2::ReturnCode ppe_ss_only(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address,
@@ -711,16 +621,18 @@ fapi2::ReturnCode ppe_ss_only(
fapi_try_exit:
return fapi2::current_err;
}
-//PPE write IAR
+
+//-----------------------------------------------------------------------------
+
fapi2::ReturnCode ppe_write_iar(
const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
const uint64_t i_base_address,
- const uint64_t l_address
+ const uint64_t i_address
)
{
fapi2::buffer<uint64_t> temp_data64;
- temp_data64.flush<0>().insertFromRight(l_address, 32, 32);
+ temp_data64.flush<0>().insertFromRight(i_address, 32, 32);
FAPI_DBG("IAR: 0x%16llX", temp_data64 );
FAPI_TRY(fapi2::putScom(i_target, i_base_address + PPE_XIDBGPRO, temp_data64));
fapi_try_exit:
@@ -729,33 +641,30 @@ fapi_try_exit:
//-----------------------------------------------------------------------------
-/**
- * @brief single step the engine
- * @param[in] i_target target register number
- * @return fapi2::ReturnCode
- * @note output is l_scom_regs.] which has reg name added along with value and number
- * this will be used for printing in the wrapper
- */
+#ifndef __HOSTBOOT_MODULE
+
fapi2::ReturnCode scom_regs_populate_name(
- std::vector<SCOMRegValue_t> l_ppe_regs_value,
- const std::map<uint16_t, std::string> l_ppe_regs_num_name,
- std::vector<SCOMReg_t>& l_scom_regs)
+ std::vector<SCOMRegValue_t> i_ppe_regs_value,
+ const std::map<uint16_t, std::string> i_ppe_regs_num_name,
+ std::vector<SCOMReg_t>& i_scom_regs)
{
SCOMReg_t l_reg;
FAPI_INF(" populating reg names");
- if (!l_ppe_regs_value.empty())
+ if (!i_ppe_regs_value.empty())
{
- for (auto it : l_ppe_regs_value)
+ for (auto it : i_ppe_regs_value)
{
- auto search = l_ppe_regs_num_name.find(it.number);
+ auto search = i_ppe_regs_num_name.find(it.number);
l_reg.name = search->second;
l_reg.reg = it;
- l_scom_regs.push_back(l_reg);
+ i_scom_regs.push_back(l_reg);
}
}
return fapi2::current_err;
}
+
+#endif
diff --git a/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.H b/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.H
index 51388221..ddd2973e 100644
--- a/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.H
+++ b/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.H
@@ -31,11 +31,12 @@
/// *HWP HW Backup Owner : Brian Vanderpool <vanderp@us.ibm.com>
/// *HWP FW Owner : Sangeetha T S <sangeet2@in.ibm.com>
/// *HWP Team : PM
-/// *HWP Level : 2
-/// *HWP Consumed by : CMEs, GPEs, SBE, Cronus
-#include <map>
+/// *HWP Level : 3
+/// *HWP Consumed by : Cronus, HB, FSP
#ifndef __P9_PPE_UTILS_H__
#define __P9_PPE_UTILS_H__
+#include <map>
+#include <fapi2.H>
typedef struct
{
uint16_t number;
@@ -44,22 +45,10 @@ typedef struct
typedef struct
{
- PPERegValue_t reg;
- std::string name;
-} PPEReg_t;
-
-typedef struct
-{
uint16_t number;
uint64_t value;
} SCOMRegValue_t;
-
-typedef struct
-{
- SCOMRegValue_t reg;
- std::string name;
-} SCOMReg_t;
/**
* @brief enumerates opcodes for few instructions.
*/
@@ -179,6 +168,20 @@ enum PPE_GPRS
R30 = 30,
R31 = 31,
};
+
+#ifndef __HOSTBOOT_MODULE
+typedef struct
+{
+ SCOMRegValue_t reg;
+ std::string name;
+} SCOMReg_t;
+
+typedef struct
+{
+ PPERegValue_t reg;
+ std::string name;
+} PPEReg_t;
+
// Vector defining all spr acceess egisters
const std::map<uint16_t, std::string> v_ppe_sprs_num_name =
{
@@ -230,5 +233,291 @@ const std::map<uint16_t, std::string> v_ppe_xsr_num_name =
{ SPRG0, "SPRG0" }
};
+#endif //__HOSTBOOT_MODULE
+
+///--------------------------------------------------------------------------------------
+/// @brief generates a PPE instruction for some formats
+/// @param[in] i_Op Opcode
+/// @param[in] i_Rts Source or Target Register
+/// @param[in] i_RA Address Register
+/// @param[in] i_d Instruction Data Field
+/// @return returns 32 bit instruction representing the PPE instruction.
+///--------------------------------------------------------------------------------------
+uint32_t ppe_getInstruction( const uint16_t i_Op, const uint16_t i_Rts, const uint16_t i_Ra, const uint16_t i_d );
+
+///--------------------------------------------------------------------------------------
+/// @brief generates instruction for mtspr
+/// @param[in] i_Rs source register number
+/// @param[in] i_Spr represents spr where data is to be moved.
+/// @return returns 32 bit instruction representing mtspr instruction.
+///--------------------------------------------------------------------------------------
+uint32_t ppe_getMtsprInstruction( const uint16_t i_Rs, const uint16_t i_Spr );
+
+
+///--------------------------------------------------------------------------------------
+/// @brief generates instruction for mfspr
+/// @param[in] i_Rt target register number
+/// @param[in] i_Spr represents spr where data is to sourced
+/// @return returns 32 bit instruction representing mfspr instruction.
+///--------------------------------------------------------------------------------------
+
+uint32_t ppe_getMfsprInstruction( const uint16_t i_Rt, const uint16_t i_Spr );
+
+///--------------------------------------------------------------------------------------
+/// @brief generates instruction for mfmsr instruction.
+/// @param[in] i_Rt target register number
+/// @return returns 32 bit instruction representing mfmsr instruction.
+/// @note moves contents of register MSR to i_Rt register.
+///--------------------------------------------------------------------------------------
+uint32_t ppe_getMfmsrInstruction( const uint16_t i_Rt );
+
+///--------------------------------------------------------------------------------------
+/// @brief generates instruction for mfcr instruction.
+/// @param[in] i_Rt target register number
+/// @return returns 32 bit instruction representing mfcr instruction.
+/// @note moves contents of register CR to i_Rt register.
+///--------------------------------------------------------------------------------------
+uint32_t ppe_getMfcrInstruction( const uint16_t i_Rt );
+
+///--------------------------------------------------------------------------------------
+/// @brief poll for Halt state
+/// @param[in] i_target fapi2 target for proc chip
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @return fapi2::ReturnCode
+/// @note moves contents of register MSR to i_Rt register.
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_pollHaltState(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address) ;
+
+///--------------------------------------------------------------------------------------
+/// @brief halt the engine
+/// @param[in] i_target fapi2 target for proc chip
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @return fapi2::ReturnCode
+/// @note programs XCR with halt bit to halt the engine.
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_halt(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address );
+
+///--------------------------------------------------------------------------------------
+/// @brief force halt the engine
+/// @param[in] i_target fapi2 target for proc chip
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @return fapi2::ReturnCode
+/// @note programs XCR with force halt to force halt the engine.
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_force_halt(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address );
+
+///--------------------------------------------------------------------------------------
+/// @brief resume the halted engine
+/// @param[in] i_target fapi2 target for proc chip
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @return fapi2::ReturnCode
+/// @note programs XCR with resume bit to resume the engine.
+///--------------------------------------------------------------------------------------
+fapi2::ReturnCode ppe_resume(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address );
+
+///--------------------------------------------------------------------------------------
+/// @brief update dbcr
+/// @param[in] i_target fapi2 target for proc chip
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @param[in] i_inst_op instruction opcode
+/// @param[in] i_immed_16 16 bit constant
+/// @param[in] i_Rs source GPR number
+/// @return fapi2::ReturnCode
+/// @note programs mtdbcr
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_update_dbcr(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address,
+ const uint64_t i_inst_op,
+ const uint16_t i_immed_16,
+ const uint16_t i_Rs );
+
+///--------------------------------------------------------------------------------------
+/// @brief update dacr
+/// @param[in] i_target target register number
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @param[in] i_address address to be updated
+/// @return fapi2::ReturnCode
+/// @note programs mtdacr
+///--------------------------------------------------------------------------------------
+fapi2::ReturnCode ppe_update_dacr(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address,
+ const uint64_t i_address,
+ const uint16_t i_Rs );
+
+///--------------------------------------------------------------------------------------
+/// @brief Perform RAM "read" operation
+/// @param[in] i_target Chip Target
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @param[in] i_instruction RAM instruction to move a register
+/// @param[out] o_data Returned data
+/// @return fapi2::ReturnCode
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_RAMRead(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address,
+ const fapi2::buffer<uint64_t> i_instruction,
+ fapi2::buffer<uint32_t>& o_data );
+
+///--------------------------------------------------------------------------------------
+/// @brief Perform RAM "read" operation
+/// @param[in] i_target Chip Target
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @param[in] i_instruction RAM instruction to move a register
+/// @return fapi2::ReturnCode
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_RAM(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address,
+ const uint64_t i_instruction
+);
+
+///--------------------------------------------------------------------------------------
+/// @brief single step the engine
+/// @param[in] i_target target register number
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @param[in] i_Rs
+/// @param[in] i_step_count
+/// @return fapi2::ReturnCode
+/// @note programs XCR with single step tosingle step the engine.
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_single_step(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address,
+ const uint16_t i_Rs,
+ uint64_t i_step_count );
+
+
+///--------------------------------------------------------------------------------------
+/// @brief clear the dbg status engine
+/// @param[in] i_target target register number
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @return fapi2::ReturnCode
+/// @note programs XCR to clear dbg status.
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_clear_dbg(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address );
+
+///--------------------------------------------------------------------------------------
+/// @brief toggle TRH
+/// @param[in] i_target target register number
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @return fapi2::ReturnCode
+/// @note programs XCR to toggle trh.
+///--------------------------------------------------------------------------------------
+fapi2::ReturnCode ppe_toggle_trh(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address );
+
+///--------------------------------------------------------------------------------------
+/// @brief xcr soft reset
+/// @param[in] i_target target register number
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @return fapi2::ReturnCode
+/// @note programs XCR to give soft reset
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_soft_reset(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address );
+
+///--------------------------------------------------------------------------------------
+/// @brief xcr hard reset
+/// @param[in] i_target target register number
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @return fapi2::ReturnCode
+/// @note programs XCR to give hard reset
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_hard_reset(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address );
+
+///--------------------------------------------------------------------------------------
+/// @brief xcr resume only
+/// @param[in] i_target target register number
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @return fapi2::ReturnCode
+/// @note programs XCR to only resume
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_resume_only(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address );
+
+///--------------------------------------------------------------------------------------
+/// @brief only single step the engine
+/// @param[in] i_target target register number
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @param[in] i_step_count
+/// @return fapi2::ReturnCode
+/// @note programs XCR with single step no clearing DBCR
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_ss_only(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address,
+ uint64_t i_step_count );
+
+///--------------------------------------------------------------------------------------
+/// @brief populate IAR register with a given address
+/// @param[in] i_target target register number
+/// @param[in] i_base_address base SCOM address of the PPE
+/// @param[in] i_address address to be populated
+/// @return fapi2::ReturnCode
+/// @note programs XCR with single step no clearing DBCR
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_write_iar(
+ const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
+ const uint64_t i_base_address,
+ const uint64_t i_address );
+
+#ifndef __HOSTBOOT_MODULE
+
+///--------------------------------------------------------------------------------------
+/// @brief finds name of SCOM registers and populates a vector
+/// @param[in] i_ppe_regs_value a vector of SCOMRegValue_t
+/// @param[in] i_ppe_regs_num_name a map of reg num and respective name
+/// @param[in] i_scom_regs a vector of SCOMReg_t
+/// @return fapi2::ReturnCode
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode scom_regs_populate_name(
+ std::vector<SCOMRegValue_t> i_ppe_regs_value,
+ const std::map<uint16_t, std::string> i_ppe_regs_num_name,
+ std::vector<SCOMReg_t>& i_scom_regs );
+
+///--------------------------------------------------------------------------------------
+/// @brief populates register names
+/// @param[in] i_ppe_regs_value
+/// @param[in] i_ppe_regs_num_name
+/// @param[in] i_ppe_regs
+/// @return fapi2::ReturnCode
+///--------------------------------------------------------------------------------------
+
+fapi2::ReturnCode ppe_regs_populate_name(
+ std::vector<PPERegValue_t> i_ppe_regs_value,
+ const std::map<uint16_t, std::string> i_ppe_regs_num_name,
+ std::vector<PPEReg_t>& i_ppe_regs );
+#endif //__HOSTBOOT_MODULE
#endif // __P9_PPE_UTILS_H__
diff --git a/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.mk b/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.mk
new file mode 100644
index 00000000..e0486ba7
--- /dev/null
+++ b/import/chips/p9/procedures/hwp/lib/p9_ppe_utils.mk
@@ -0,0 +1,27 @@
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: import/chips/p9/procedures/hwp/lib/p9_ppe_utils.mk $
+#
+# OpenPOWER HCODE Project
+#
+# COPYRIGHT 2015,2017
+# [+] International Business Machines Corp.
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+#
+# IBM_PROLOG_END_TAG
+
+PROCEDURE=p9_ppe_utils
+$(call BUILD_PROCEDURE)
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