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path: root/drivers/net/npe/IxNpeDlNpeMgrUtils.c
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Diffstat (limited to 'drivers/net/npe/IxNpeDlNpeMgrUtils.c')
-rw-r--r--drivers/net/npe/IxNpeDlNpeMgrUtils.c806
1 files changed, 806 insertions, 0 deletions
diff --git a/drivers/net/npe/IxNpeDlNpeMgrUtils.c b/drivers/net/npe/IxNpeDlNpeMgrUtils.c
new file mode 100644
index 0000000..18cac50
--- /dev/null
+++ b/drivers/net/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;
+}