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Diffstat (limited to 'arch/arm/cpu/ixp/npe/IxNpeDlNpeMgrUtils.c')
| -rw-r--r-- | arch/arm/cpu/ixp/npe/IxNpeDlNpeMgrUtils.c | 806 |
1 files changed, 806 insertions, 0 deletions
diff --git a/arch/arm/cpu/ixp/npe/IxNpeDlNpeMgrUtils.c b/arch/arm/cpu/ixp/npe/IxNpeDlNpeMgrUtils.c new file mode 100644 index 0000000..18cac50 --- /dev/null +++ b/arch/arm/cpu/ixp/npe/IxNpeDlNpeMgrUtils.c @@ -0,0 +1,806 @@ +/** + * @file IxNpeDlNpeMgrUtils.c + * + * @author Intel Corporation + * @date 18 February 2002 + * + * @brief This file contains the implementation of the private API for the + * IXP425 NPE Downloader NpeMgr Utils module + * + * + * @par + * IXP400 SW Release version 2.0 + * + * -- Copyright Notice -- + * + * @par + * Copyright 2001-2005, Intel Corporation. + * All rights reserved. + * + * @par + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Intel Corporation nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * @par + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @par + * -- End of Copyright Notice -- +*/ + + +/* + * Put the system defined include files required. + */ +#define IX_NPE_DL_MAX_NUM_OF_RETRIES 1000000 /**< Maximum number of + * retries before + * timeout + */ + +/* + * Put the user defined include files required. + */ +#include "IxOsal.h" +#include "IxNpeDl.h" +#include "IxNpeDlNpeMgrUtils_p.h" +#include "IxNpeDlNpeMgrEcRegisters_p.h" +#include "IxNpeDlMacros_p.h" + +/* + * #defines and macros used in this file. + */ + +/* used to bit-mask a number of bytes */ +#define IX_NPEDL_MASK_LOWER_BYTE_OF_WORD 0x000000FF +#define IX_NPEDL_MASK_LOWER_SHORT_OF_WORD 0x0000FFFF +#define IX_NPEDL_MASK_FULL_WORD 0xFFFFFFFF + +#define IX_NPEDL_BYTES_PER_WORD 4 +#define IX_NPEDL_BYTES_PER_SHORT 2 + +#define IX_NPEDL_REG_SIZE_BYTE 8 +#define IX_NPEDL_REG_SIZE_SHORT 16 +#define IX_NPEDL_REG_SIZE_WORD 32 + +/* + * Introduce extra read cycles after issuing read command to NPE + * so that we read the register after the NPE has updated it + * This is to overcome race condition between XScale and NPE + */ +#define IX_NPEDL_DELAY_READ_CYCLES 2 +/* + * To mask top three MSBs of 32bit word to download into NPE IMEM + */ +#define IX_NPEDL_MASK_UNUSED_IMEM_BITS 0x1FFFFFFF; + + +/* + * typedefs + */ +typedef struct +{ + UINT32 regAddress; + UINT32 regSize; +} IxNpeDlCtxtRegAccessInfo; + +/* module statistics counters */ +typedef struct +{ + UINT32 insMemWrites; + UINT32 insMemWriteFails; + UINT32 dataMemWrites; + UINT32 dataMemWriteFails; + UINT32 ecsRegWrites; + UINT32 ecsRegReads; + UINT32 dbgInstructionExecs; + UINT32 contextRegWrites; + UINT32 physicalRegWrites; + UINT32 nextPcWrites; +} IxNpeDlNpeMgrUtilsStats; + + +/* + * Variable declarations global to this file only. Externs are followed by + * static variables. + */ + +/* + * contains useful address and function pointers to read/write Context Regs, + * eliminating some switch or if-else statements in places + */ +static IxNpeDlCtxtRegAccessInfo ixNpeDlCtxtRegAccInfo[IX_NPEDL_CTXT_REG_MAX] = +{ + { + IX_NPEDL_CTXT_REG_ADDR_STEVT, + IX_NPEDL_REG_SIZE_BYTE + }, + { + IX_NPEDL_CTXT_REG_ADDR_STARTPC, + IX_NPEDL_REG_SIZE_SHORT + }, + { + IX_NPEDL_CTXT_REG_ADDR_REGMAP, + IX_NPEDL_REG_SIZE_SHORT + }, + { + IX_NPEDL_CTXT_REG_ADDR_CINDEX, + IX_NPEDL_REG_SIZE_BYTE + } +}; + +static UINT32 ixNpeDlSavedExecCount = 0; +static UINT32 ixNpeDlSavedEcsDbgCtxtReg2 = 0; + +static IxNpeDlNpeMgrUtilsStats ixNpeDlNpeMgrUtilsStats; + + +/* + * static function prototypes. + */ +PRIVATE __inline__ void +ixNpeDlNpeMgrWriteCommandIssue (UINT32 npeBaseAddress, UINT32 cmd, + UINT32 addr, UINT32 data); + +PRIVATE __inline__ UINT32 +ixNpeDlNpeMgrReadCommandIssue (UINT32 npeBaseAddress, UINT32 cmd, UINT32 addr); + +PRIVATE IX_STATUS +ixNpeDlNpeMgrLogicalRegRead (UINT32 npeBaseAddress, UINT32 regAddr, + UINT32 regSize, UINT32 ctxtNum, UINT32 *regVal); + +PRIVATE IX_STATUS +ixNpeDlNpeMgrLogicalRegWrite (UINT32 npeBaseAddress, UINT32 regAddr, + UINT32 regVal, UINT32 regSize, + UINT32 ctxtNum, BOOL verify); + +/* + * Function definition: ixNpeDlNpeMgrWriteCommandIssue + */ +PRIVATE __inline__ void +ixNpeDlNpeMgrWriteCommandIssue ( + UINT32 npeBaseAddress, + UINT32 cmd, + UINT32 addr, + UINT32 data) +{ + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXDATA, data); + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXAD, addr); + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXCTL, cmd); +} + + +/* + * Function definition: ixNpeDlNpeMgrReadCommandIssue + */ +PRIVATE __inline__ UINT32 +ixNpeDlNpeMgrReadCommandIssue ( + UINT32 npeBaseAddress, + UINT32 cmd, + UINT32 addr) +{ + UINT32 data = 0; + int i; + + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXAD, addr); + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXCTL, cmd); + for (i = 0; i <= IX_NPEDL_DELAY_READ_CYCLES; i++) + { + IX_NPEDL_REG_READ (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXDATA, &data); + } + + return data; +} + +/* + * Function definition: ixNpeDlNpeMgrInsMemWrite + */ +IX_STATUS +ixNpeDlNpeMgrInsMemWrite ( + UINT32 npeBaseAddress, + UINT32 insMemAddress, + UINT32 insMemData, + BOOL verify) +{ + UINT32 insMemDataRtn; + + ixNpeDlNpeMgrWriteCommandIssue (npeBaseAddress, + IX_NPEDL_EXCTL_CMD_WR_INS_MEM, + insMemAddress, insMemData); + if (verify) + { + /* write invalid data to this reg, so we can see if we're reading + the EXDATA register too early */ + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXDATA, + ~insMemData); + + /*Disabled since top 3 MSB are not used for Azusa hardware Refer WR:IXA00053900*/ + insMemData&=IX_NPEDL_MASK_UNUSED_IMEM_BITS; + + insMemDataRtn=ixNpeDlNpeMgrReadCommandIssue (npeBaseAddress, + IX_NPEDL_EXCTL_CMD_RD_INS_MEM, + insMemAddress); + + insMemDataRtn&=IX_NPEDL_MASK_UNUSED_IMEM_BITS; + + if (insMemData != insMemDataRtn) + { + ixNpeDlNpeMgrUtilsStats.insMemWriteFails++; + return IX_FAIL; + } + } + + ixNpeDlNpeMgrUtilsStats.insMemWrites++; + return IX_SUCCESS; +} + + +/* + * Function definition: ixNpeDlNpeMgrDataMemWrite + */ +IX_STATUS +ixNpeDlNpeMgrDataMemWrite ( + UINT32 npeBaseAddress, + UINT32 dataMemAddress, + UINT32 dataMemData, + BOOL verify) +{ + ixNpeDlNpeMgrWriteCommandIssue (npeBaseAddress, + IX_NPEDL_EXCTL_CMD_WR_DATA_MEM, + dataMemAddress, dataMemData); + if (verify) + { + /* write invalid data to this reg, so we can see if we're reading + the EXDATA register too early */ + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXDATA, ~dataMemData); + + if (dataMemData != + ixNpeDlNpeMgrReadCommandIssue (npeBaseAddress, + IX_NPEDL_EXCTL_CMD_RD_DATA_MEM, + dataMemAddress)) + { + ixNpeDlNpeMgrUtilsStats.dataMemWriteFails++; + return IX_FAIL; + } + } + + ixNpeDlNpeMgrUtilsStats.dataMemWrites++; + return IX_SUCCESS; +} + + +/* + * Function definition: ixNpeDlNpeMgrExecAccRegWrite + */ +void +ixNpeDlNpeMgrExecAccRegWrite ( + UINT32 npeBaseAddress, + UINT32 regAddress, + UINT32 regData) +{ + ixNpeDlNpeMgrWriteCommandIssue (npeBaseAddress, + IX_NPEDL_EXCTL_CMD_WR_ECS_REG, + regAddress, regData); + ixNpeDlNpeMgrUtilsStats.ecsRegWrites++; +} + + +/* + * Function definition: ixNpeDlNpeMgrExecAccRegRead + */ +UINT32 +ixNpeDlNpeMgrExecAccRegRead ( + UINT32 npeBaseAddress, + UINT32 regAddress) +{ + ixNpeDlNpeMgrUtilsStats.ecsRegReads++; + return ixNpeDlNpeMgrReadCommandIssue (npeBaseAddress, + IX_NPEDL_EXCTL_CMD_RD_ECS_REG, + regAddress); +} + + +/* + * Function definition: ixNpeDlNpeMgrCommandIssue + */ +void +ixNpeDlNpeMgrCommandIssue ( + UINT32 npeBaseAddress, + UINT32 command) +{ + IX_NPEDL_TRACE0 (IX_NPEDL_FN_ENTRY_EXIT, + "Entering ixNpeDlNpeMgrCommandIssue\n"); + + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXCTL, command); + + IX_NPEDL_TRACE0 (IX_NPEDL_FN_ENTRY_EXIT, + "Exiting ixNpeDlNpeMgrCommandIssue\n"); +} + + +/* + * Function definition: ixNpeDlNpeMgrDebugInstructionPreExec + */ +void +ixNpeDlNpeMgrDebugInstructionPreExec( + UINT32 npeBaseAddress) +{ + /* turn off the halt bit by clearing Execution Count register. */ + /* save reg contents 1st and restore later */ + IX_NPEDL_REG_READ (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXCT, + &ixNpeDlSavedExecCount); + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXCT, 0); + + /* ensure that IF and IE are on (temporarily), so that we don't end up + * stepping forever */ + ixNpeDlSavedEcsDbgCtxtReg2 = ixNpeDlNpeMgrExecAccRegRead (npeBaseAddress, + IX_NPEDL_ECS_DBG_CTXT_REG_2); + + ixNpeDlNpeMgrExecAccRegWrite (npeBaseAddress, IX_NPEDL_ECS_DBG_CTXT_REG_2, + (ixNpeDlSavedEcsDbgCtxtReg2 | + IX_NPEDL_MASK_ECS_DBG_REG_2_IF | + IX_NPEDL_MASK_ECS_DBG_REG_2_IE)); +} + + +/* + * Function definition: ixNpeDlNpeMgrDebugInstructionExec + */ +IX_STATUS +ixNpeDlNpeMgrDebugInstructionExec( + UINT32 npeBaseAddress, + UINT32 npeInstruction, + UINT32 ctxtNum, + UINT32 ldur) +{ + UINT32 ecsDbgRegVal; + UINT32 oldWatchcount, newWatchcount; + UINT32 retriesCount = 0; + IX_STATUS status = IX_SUCCESS; + + IX_NPEDL_TRACE0 (IX_NPEDL_FN_ENTRY_EXIT, + "Entering ixNpeDlNpeMgrDebugInstructionExec\n"); + + /* set the Active bit, and the LDUR, in the debug level */ + ecsDbgRegVal = IX_NPEDL_MASK_ECS_REG_0_ACTIVE | + (ldur << IX_NPEDL_OFFSET_ECS_REG_0_LDUR); + + ixNpeDlNpeMgrExecAccRegWrite (npeBaseAddress, IX_NPEDL_ECS_DBG_CTXT_REG_0, + ecsDbgRegVal); + + /* + * set CCTXT at ECS DEBUG L3 to specify in which context to execute the + * instruction, and set SELCTXT at ECS DEBUG Level to specify which context + * store to access. + * Debug ECS Level Reg 1 has form 0x000n000n, where n = context number + */ + ecsDbgRegVal = (ctxtNum << IX_NPEDL_OFFSET_ECS_REG_1_CCTXT) | + (ctxtNum << IX_NPEDL_OFFSET_ECS_REG_1_SELCTXT); + + ixNpeDlNpeMgrExecAccRegWrite (npeBaseAddress, IX_NPEDL_ECS_DBG_CTXT_REG_1, + ecsDbgRegVal); + + /* clear the pipeline */ + ixNpeDlNpeMgrCommandIssue (npeBaseAddress, IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE); + + /* load NPE instruction into the instruction register */ + ixNpeDlNpeMgrExecAccRegWrite (npeBaseAddress, IX_NPEDL_ECS_INSTRUCT_REG, + npeInstruction); + + /* we need this value later to wait for completion of NPE execution step */ + IX_NPEDL_REG_READ (npeBaseAddress, IX_NPEDL_REG_OFFSET_WC, &oldWatchcount); + + /* issue a Step One command via the Execution Control register */ + ixNpeDlNpeMgrCommandIssue (npeBaseAddress, IX_NPEDL_EXCTL_CMD_NPE_STEP); + + /* Watch Count register increments when NPE completes an instruction */ + IX_NPEDL_REG_READ (npeBaseAddress, IX_NPEDL_REG_OFFSET_WC, + &newWatchcount); + + /* + * force the XScale to wait until the NPE has finished execution step + * NOTE that this delay will be very small, just long enough to allow a + * single NPE instruction to complete execution; if instruction execution + * is not completed before timeout retries, exit the while loop + */ + while ((IX_NPE_DL_MAX_NUM_OF_RETRIES > retriesCount) + && (newWatchcount == oldWatchcount)) + { + /* Watch Count register increments when NPE completes an instruction */ + IX_NPEDL_REG_READ (npeBaseAddress, IX_NPEDL_REG_OFFSET_WC, + &newWatchcount); + + retriesCount++; + } + + if (IX_NPE_DL_MAX_NUM_OF_RETRIES > retriesCount) + { + ixNpeDlNpeMgrUtilsStats.dbgInstructionExecs++; + } + else + { + /* Return timeout status as the instruction has not been executed + * after maximum retries */ + status = IX_NPEDL_CRITICAL_NPE_ERR; + } + + IX_NPEDL_TRACE0 (IX_NPEDL_FN_ENTRY_EXIT, + "Exiting ixNpeDlNpeMgrDebugInstructionExec\n"); + + return status; +} + + +/* + * Function definition: ixNpeDlNpeMgrDebugInstructionPostExec + */ +void +ixNpeDlNpeMgrDebugInstructionPostExec( + UINT32 npeBaseAddress) +{ + /* clear active bit in debug level */ + ixNpeDlNpeMgrExecAccRegWrite (npeBaseAddress, IX_NPEDL_ECS_DBG_CTXT_REG_0, + 0); + + /* clear the pipeline */ + ixNpeDlNpeMgrCommandIssue (npeBaseAddress, IX_NPEDL_EXCTL_CMD_NPE_CLR_PIPE); + + /* restore Execution Count register contents. */ + IX_NPEDL_REG_WRITE (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXCT, + ixNpeDlSavedExecCount); + + /* restore IF and IE bits to original values */ + ixNpeDlNpeMgrExecAccRegWrite (npeBaseAddress, IX_NPEDL_ECS_DBG_CTXT_REG_2, + ixNpeDlSavedEcsDbgCtxtReg2); +} + + +/* + * Function definition: ixNpeDlNpeMgrLogicalRegRead + */ +PRIVATE IX_STATUS +ixNpeDlNpeMgrLogicalRegRead ( + UINT32 npeBaseAddress, + UINT32 regAddr, + UINT32 regSize, + UINT32 ctxtNum, + UINT32 *regVal) +{ + IX_STATUS status = IX_SUCCESS; + UINT32 npeInstruction = 0; + UINT32 mask = 0; + + IX_NPEDL_TRACE0 (IX_NPEDL_FN_ENTRY_EXIT, + "Entering ixNpeDlNpeMgrLogicalRegRead\n"); + + switch (regSize) + { + case IX_NPEDL_REG_SIZE_BYTE: + npeInstruction = IX_NPEDL_INSTR_RD_REG_BYTE; + mask = IX_NPEDL_MASK_LOWER_BYTE_OF_WORD; break; + case IX_NPEDL_REG_SIZE_SHORT: + npeInstruction = IX_NPEDL_INSTR_RD_REG_SHORT; + mask = IX_NPEDL_MASK_LOWER_SHORT_OF_WORD; break; + case IX_NPEDL_REG_SIZE_WORD: + npeInstruction = IX_NPEDL_INSTR_RD_REG_WORD; + mask = IX_NPEDL_MASK_FULL_WORD; break; + } + + /* make regAddr be the SRC and DEST operands (e.g. movX d0, d0) */ + npeInstruction |= (regAddr << IX_NPEDL_OFFSET_INSTR_SRC) | + (regAddr << IX_NPEDL_OFFSET_INSTR_DEST); + + /* step execution of NPE intruction using Debug Executing Context stack */ + status = ixNpeDlNpeMgrDebugInstructionExec (npeBaseAddress, npeInstruction, + ctxtNum, IX_NPEDL_RD_INSTR_LDUR); + + if (IX_SUCCESS != status) + { + return status; + } + + /* read value of register from Execution Data register */ + IX_NPEDL_REG_READ (npeBaseAddress, IX_NPEDL_REG_OFFSET_EXDATA, regVal); + + /* align value from left to right */ + *regVal = (*regVal >> (IX_NPEDL_REG_SIZE_WORD - regSize)) & mask; + + IX_NPEDL_TRACE0 (IX_NPEDL_FN_ENTRY_EXIT, + "Exiting ixNpeDlNpeMgrLogicalRegRead\n"); + + return IX_SUCCESS; +} + + +/* + * Function definition: ixNpeDlNpeMgrLogicalRegWrite + */ +PRIVATE IX_STATUS +ixNpeDlNpeMgrLogicalRegWrite ( + UINT32 npeBaseAddress, + UINT32 regAddr, + UINT32 regVal, + UINT32 regSize, + UINT32 ctxtNum, + BOOL verify) +{ + UINT32 npeInstruction = 0; + UINT32 mask = 0; + IX_STATUS status = IX_SUCCESS; + UINT32 retRegVal; + + IX_NPEDL_TRACE0 (IX_NPEDL_FN_ENTRY_EXIT, + "Entering ixNpeDlNpeMgrLogicalRegWrite\n"); + + if (regSize == IX_NPEDL_REG_SIZE_WORD) + { + /* NPE register addressing is left-to-right: e.g. |d0|d1|d2|d3| */ + /* Write upper half-word (short) to |d0|d1| */ + status = ixNpeDlNpeMgrLogicalRegWrite (npeBaseAddress, regAddr, + regVal >> IX_NPEDL_REG_SIZE_SHORT, + IX_NPEDL_REG_SIZE_SHORT, + ctxtNum, verify); + + if (IX_SUCCESS != status) + { + return status; + } + + /* Write lower half-word (short) to |d2|d3| */ + status = ixNpeDlNpeMgrLogicalRegWrite (npeBaseAddress, + regAddr + IX_NPEDL_BYTES_PER_SHORT, + regVal & IX_NPEDL_MASK_LOWER_SHORT_OF_WORD, + IX_NPEDL_REG_SIZE_SHORT, + ctxtNum, verify); + + if (IX_SUCCESS != status) + { + return status; + } + } + else + { + switch (regSize) + { + case IX_NPEDL_REG_SIZE_BYTE: + npeInstruction = IX_NPEDL_INSTR_WR_REG_BYTE; + mask = IX_NPEDL_MASK_LOWER_BYTE_OF_WORD; break; + case IX_NPEDL_REG_SIZE_SHORT: + npeInstruction = IX_NPEDL_INSTR_WR_REG_SHORT; + mask = IX_NPEDL_MASK_LOWER_SHORT_OF_WORD; break; + } + /* mask out any redundant bits, so verify will work later */ + regVal &= mask; + + /* fill dest operand field of instruction with destination reg addr */ + npeInstruction |= (regAddr << IX_NPEDL_OFFSET_INSTR_DEST); + + /* fill src operand field of instruction with least-sig 5 bits of val*/ + npeInstruction |= ((regVal & IX_NPEDL_MASK_IMMED_INSTR_SRC_DATA) << + IX_NPEDL_OFFSET_INSTR_SRC); + + /* fill coprocessor field of instruction with most-sig 11 bits of val*/ + npeInstruction |= ((regVal & IX_NPEDL_MASK_IMMED_INSTR_COPROC_DATA) << + IX_NPEDL_DISPLACE_IMMED_INSTR_COPROC_DATA); + + /* step execution of NPE intruction using Debug ECS */ + status = ixNpeDlNpeMgrDebugInstructionExec(npeBaseAddress, npeInstruction, + ctxtNum, IX_NPEDL_WR_INSTR_LDUR); + + if (IX_SUCCESS != status) + { + return status; + } + }/* condition: if reg to be written is 8-bit or 16-bit (not 32-bit) */ + + if (verify) + { + status = ixNpeDlNpeMgrLogicalRegRead (npeBaseAddress, regAddr, + regSize, ctxtNum, &retRegVal); + + if (IX_SUCCESS == status) + { + if (regVal != retRegVal) + { + status = IX_FAIL; + } + } + } + + IX_NPEDL_TRACE1 (IX_NPEDL_FN_ENTRY_EXIT, + "Exiting ixNpeDlNpeMgrLogicalRegWrite : status = %d\n", + status); + + return status; +} + + +/* + * Function definition: ixNpeDlNpeMgrPhysicalRegWrite + */ +IX_STATUS +ixNpeDlNpeMgrPhysicalRegWrite ( + UINT32 npeBaseAddress, + UINT32 regAddr, + UINT32 regValue, + BOOL verify) +{ + IX_STATUS status; + + IX_NPEDL_TRACE0 (IX_NPEDL_FN_ENTRY_EXIT, + "Entering ixNpeDlNpeMgrPhysicalRegWrite\n"); + +/* + * There are 32 physical registers used in an NPE. These are + * treated as 16 pairs of 32-bit registers. To write one of the pair, + * write the pair number (0-16) to the REGMAP for Context 0. Then write + * the value to register 0 or 4 in the regfile, depending on which + * register of the pair is to be written + */ + + /* + * set REGMAP for context 0 to (regAddr >> 1) to choose which pair (0-16) + * of physical registers to write + */ + status = ixNpeDlNpeMgrLogicalRegWrite (npeBaseAddress, + IX_NPEDL_CTXT_REG_ADDR_REGMAP, + (regAddr >> + IX_NPEDL_OFFSET_PHYS_REG_ADDR_REGMAP), + IX_NPEDL_REG_SIZE_SHORT, 0, verify); + if (status == IX_SUCCESS) + { + /* regAddr = 0 or 4 */ + regAddr = (regAddr & IX_NPEDL_MASK_PHYS_REG_ADDR_LOGICAL_ADDR) * + IX_NPEDL_BYTES_PER_WORD; + + status = ixNpeDlNpeMgrLogicalRegWrite (npeBaseAddress, regAddr, regValue, + IX_NPEDL_REG_SIZE_WORD, 0, verify); + } + + if (status != IX_SUCCESS) + { + IX_NPEDL_ERROR_REPORT ("ixNpeDlNpeMgrPhysicalRegWrite: " + "error writing to physical register\n"); + } + + ixNpeDlNpeMgrUtilsStats.physicalRegWrites++; + + IX_NPEDL_TRACE1 (IX_NPEDL_FN_ENTRY_EXIT, + "Exiting ixNpeDlNpeMgrPhysicalRegWrite : status = %d\n", + status); + return status; +} + + +/* + * Function definition: ixNpeDlNpeMgrCtxtRegWrite + */ +IX_STATUS +ixNpeDlNpeMgrCtxtRegWrite ( + UINT32 npeBaseAddress, + UINT32 ctxtNum, + IxNpeDlCtxtRegNum ctxtReg, + UINT32 ctxtRegVal, + BOOL verify) +{ + UINT32 tempRegVal; + UINT32 ctxtRegAddr; + UINT32 ctxtRegSize; + IX_STATUS status = IX_SUCCESS; + + IX_NPEDL_TRACE0 (IX_NPEDL_FN_ENTRY_EXIT, + "Entering ixNpeDlNpeMgrCtxtRegWrite\n"); + + /* + * Context 0 has no STARTPC. Instead, this value is used to set + * NextPC for Background ECS, to set where NPE starts executing code + */ + if ((ctxtNum == 0) && (ctxtReg == IX_NPEDL_CTXT_REG_STARTPC)) + { + /* read BG_CTXT_REG_0, update NEXTPC bits, and write back to reg */ + tempRegVal = ixNpeDlNpeMgrExecAccRegRead (npeBaseAddress, + IX_NPEDL_ECS_BG_CTXT_REG_0); + tempRegVal &= ~IX_NPEDL_MASK_ECS_REG_0_NEXTPC; + tempRegVal |= (ctxtRegVal << IX_NPEDL_OFFSET_ECS_REG_0_NEXTPC) & + IX_NPEDL_MASK_ECS_REG_0_NEXTPC; + + ixNpeDlNpeMgrExecAccRegWrite (npeBaseAddress, + IX_NPEDL_ECS_BG_CTXT_REG_0, tempRegVal); + + ixNpeDlNpeMgrUtilsStats.nextPcWrites++; + } + else + { + ctxtRegAddr = ixNpeDlCtxtRegAccInfo[ctxtReg].regAddress; + ctxtRegSize = ixNpeDlCtxtRegAccInfo[ctxtReg].regSize; + status = ixNpeDlNpeMgrLogicalRegWrite (npeBaseAddress, ctxtRegAddr, + ctxtRegVal, ctxtRegSize, + ctxtNum, verify); + if (status != IX_SUCCESS) + { + IX_NPEDL_ERROR_REPORT ("ixNpeDlNpeMgrCtxtRegWrite: " + "error writing to context store register\n"); + } + + ixNpeDlNpeMgrUtilsStats.contextRegWrites++; + } + + IX_NPEDL_TRACE1 (IX_NPEDL_FN_ENTRY_EXIT, + "Exiting ixNpeDlNpeMgrCtxtRegWrite : status = %d\n", + status); + + return status; +} + + +/* + * Function definition: ixNpeDlNpeMgrUtilsStatsShow + */ +void +ixNpeDlNpeMgrUtilsStatsShow (void) +{ + ixOsalLog (IX_OSAL_LOG_LVL_USER, + IX_OSAL_LOG_DEV_STDOUT, + "\nixNpeDlNpeMgrUtilsStatsShow:\n" + "\tInstruction Memory writes: %u\n" + "\tInstruction Memory writes failed: %u\n" + "\tData Memory writes: %u\n" + "\tData Memory writes failed: %u\n", + ixNpeDlNpeMgrUtilsStats.insMemWrites, + ixNpeDlNpeMgrUtilsStats.insMemWriteFails, + ixNpeDlNpeMgrUtilsStats.dataMemWrites, + ixNpeDlNpeMgrUtilsStats.dataMemWriteFails, + 0,0); + + ixOsalLog (IX_OSAL_LOG_LVL_USER, + IX_OSAL_LOG_DEV_STDOUT, + "\tExecuting Context Stack Register writes: %u\n" + "\tExecuting Context Stack Register reads: %u\n" + "\tPhysical Register writes: %u\n" + "\tContext Store Register writes: %u\n" + "\tExecution Backgound Context NextPC writes: %u\n" + "\tDebug Instructions Executed: %u\n\n", + ixNpeDlNpeMgrUtilsStats.ecsRegWrites, + ixNpeDlNpeMgrUtilsStats.ecsRegReads, + ixNpeDlNpeMgrUtilsStats.physicalRegWrites, + ixNpeDlNpeMgrUtilsStats.contextRegWrites, + ixNpeDlNpeMgrUtilsStats.nextPcWrites, + ixNpeDlNpeMgrUtilsStats.dbgInstructionExecs); +} + + +/* + * Function definition: ixNpeDlNpeMgrUtilsStatsReset + */ +void +ixNpeDlNpeMgrUtilsStatsReset (void) +{ + ixNpeDlNpeMgrUtilsStats.insMemWrites = 0; + ixNpeDlNpeMgrUtilsStats.insMemWriteFails = 0; + ixNpeDlNpeMgrUtilsStats.dataMemWrites = 0; + ixNpeDlNpeMgrUtilsStats.dataMemWriteFails = 0; + ixNpeDlNpeMgrUtilsStats.ecsRegWrites = 0; + ixNpeDlNpeMgrUtilsStats.ecsRegReads = 0; + ixNpeDlNpeMgrUtilsStats.physicalRegWrites = 0; + ixNpeDlNpeMgrUtilsStats.contextRegWrites = 0; + ixNpeDlNpeMgrUtilsStats.nextPcWrites = 0; + ixNpeDlNpeMgrUtilsStats.dbgInstructionExecs = 0; +} |