RTOS/66AK2H14: MPAX (XMC & MSMC) issue with csl

#include <xdc/std.h>

#include <xdc/runtime/Error.h>
#include <xdc/runtime/System.h>
#include <xdc/runtime/Log.h>

#include <ti/sysbios/BIOS.h>

#include <ti/sysbios/knl/Task.h>
#include <ti/sysbios/knl/Clock.h>

#include <ti/sysbios/hal/Core.h>
#include <ti/sysbios/family/c64p/MemoryProtect.h>
#include <ti/sysbios/family/c64p/Exception.h>
#include <ti/sysbios/family/c66/Cache.h>

#include <c6x.h>
#include <csl_xmc.h>
#include <csl_xmcAux.h>
#include <csl_msmc.h>
#include <csl_msmcAux.h>

#include <string.h>


/*
 *  ======== mem_protectFxn ========
 */
Void mem_protectFxn(UArg a0, UArg a1)
{
    Uint32 core_id = DNUM;

    /*
     * XMPAXH |31---------BADDR---------12|11---Reserved---5|4--SEGZ--0|
     * XMPAXL |31-----------RADDR-----------8|7---PERM---0|
     */

    /* DDR 1st segment */
    CSL_MSMC_SESMPAXH* ses_mpaxh = {0};
    CSL_MSMC_SESMPAXL* ses_mpaxl = {0};

    CSL_XMC_XMPAXH* mpaxh = {0};
    CSL_XMC_XMPAXL* mpaxl = {0};

    mpaxh->bAddr = 0xB0000000;
    mpaxh->segSize = 0x17;

    mpaxl->rAddr = 0xB0000000;
    mpaxl->sr = 1;
    mpaxl->sw = 1;
    mpaxl->ur = 1;
    mpaxl->uw = 1;
    mpaxl->ux = 1;

    CSL_XMC_setXMPAXH(6, mpaxh);
    CSL_XMC_setXMPAXL(6, mpaxl);

    ses_mpaxh->baddr = 0xB0000000;
    ses_mpaxh->segSz = 0x17;

    ses_mpaxl->raddr = 0xB0000000;
    ses_mpaxl->sr = 1;
    ses_mpaxl->sw = 1;
    ses_mpaxl->sx = 1;
    ses_mpaxl->ur = 1;
    ses_mpaxl->uw = 1;
    ses_mpaxl->ux = 1;
#if 0
    CSL_MSMC_setSESMPAXH(0, 0, ses_mpaxh);
    CSL_MSMC_setSESMPAXL(0, 0, ses_mpaxl);
#endif

    System_flush(); /* force SysMin output to console */
}

/*
 *  ======== main ========
 */
Int main()
{
    System_printf("enter main()\n");
    BIOS_start();    /* does not return */
    return(0);
}

I got the following exception:

[C66xx_0] enter main()
A0=0x0 A1=0x0
A2=0x1 A3=0x0
A4=0x1 A5=0x81144c
A6=0x7 A7=0x40000400
A8=0x803994 A9=0x8006ac
A10=0x0 A11=0x0
A12=0x0 A13=0x0
A14=0x0 A15=0x0
A16=0x6c A17=0xa0
A18=0x0 A19=0x0
A20=0x90a6006 A21=0x6accda96
A22=0x19b8dc2f A23=0xe29c3f94
A24=0xba74c0b1 A25=0x262012c
A26=0x27ff0000 A27=0x1000
A28=0xf00 A29=0x400000
A30=0x0 A31=0x0
B0=0x80fc08 B1=0x0
B2=0x8039b0 B3=0x807fe0
B4=0xb0000000 B5=0xd7cc
B6=0x816dd8 B7=0x15000101
B8=0x816e34 B9=0x0
B10=0x0 B11=0x0
B12=0x0 B13=0x0
B14=0x817750 B15=0x810458
B16=0x64 B17=0x0
B18=0x817318 B19=0xffffffff
B20=0x4c B21=0x69
B22=0x2a B23=0x2e
B24=0x4e1c17a2 B25=0x20b149e8
B26=0x20b149e4 B27=0x11e
B28=0xd7cd6a85 B29=0x2
B30=0x0 B31=0x814ad8
NTSR=0x1000f
ITSR=0xc
IRP=0x80b5cc
SSR=0x0
AMR=0x0
RILC=0x0
ILC=0x0
Exception at 0x803a00
EFR=0x40000000 NRP=0x803a00
UMC Exception MPFAR=0x0 MPFSR=0x110
Security violation, Local L1/L2 cache memory Fault
Supervisor Write violation, Fault ID=0x0
ti.sysbios.family.c64p.Exception: line 256: E_exceptionMax: pc = 0x00803a00, sp = 0x00810458.
xdc.runtime.Error.raise: terminating execution

Rahul,

Thanks for your answer, I look into KeyStone_XMC_MPAX_setup function, but its not use CSL, so you do not have exception.

The issue appear only using CSL,  I will not used CSL for the rest of my test, I think its the better way to do protection.

Also thanks for the debugging tips. I'll get back to you in few days when I have something new.

Best Regards,

François