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//  IBM_PROLOG_BEGIN_TAG
//  This is an automatically generated prolog.
//
//  $Source: src/usr/intr/test/intrtest.H $
//
//  IBM CONFIDENTIAL
//
//  COPYRIGHT International Business Machines Corp. 2011
//
//  p1
//
//  Object Code Only (OCO) source materials
//  Licensed Internal Code Source Materials
//  IBM HostBoot Licensed Internal Code
//
//  The source code for this program is not published or other-
//  wise divested of its trade secrets, irrespective of what has
//  been deposited with the U.S. Copyright Office.
//
//  Origin: 30
//
//  IBM_PROLOG_END
#ifndef __INTRTEST_H
#define __INTRTEST_H

#include <cxxtest/TestSuite.H>
#include <intr/interrupt.H>
#include <errl/errlentry.H>
#include <errl/errlmanager.H>
#include <kernel/console.H>
#include <targeting/targetservice.H>
#include <targeting/util.H>


class IntrTest: public CxxTest::TestSuite
{
    public:
        /**
         * @brief INTR test setup values
         */
        void test_verifyState( void )
        {

            // TODO Temporaritly DISABLE in VBU until P8 support is added
            if( TARGETING::is_vpo() )
            {
                return;
            }

            // Add support for second chip (dummy)
            uint32_t fake_pir = 0x00000001 << 5;   // P7 chip 1 TODO P8=?
            msg_q_t intr_msgQ = msg_q_resolve(INTR_MSGQ);
            msg_t * msg = msg_allocate();
            msg->type = INTR::MSG_INTR_ADD_CPU_USR;
            msg->data[0] = fake_pir;

            msg_sendrecv(intr_msgQ, msg);

            // all the simics registers
            for(uint64_t chip = 0; chip < 4; ++chip)
            {
                // simics P7 only supports 4 threads per core
                // and 2 cores - let the thread field overflow
                // into the core field -> 2 cores x 4 threads = 8 threads
                for(uint64_t thread = 0; thread < 8; ++thread)
                {
                    uint64_t offset = (chip << 20) | (thread << 12);

                    uint32_t * addr =
                        reinterpret_cast<uint32_t *>(cv_baseAddr + offset);

                    if(offset == 0) // Master cpu
                    {
                        if(*addr != 0xFF000000)
                        {
                            TS_FAIL
                                ("INTR:Master cpu not initialized-XIRR=0x%08x",
                                 *addr);
                        }
                    }

                    if (chip < 2 && thread < 4) // TODO Change when all threads supported
                    {
                        if(offset != 0 && *addr != 0)
                        {
                            TS_FAIL("INTR:Chip %ld Thread %ld bad XIRR=0x%08x",
                                    chip,thread,*addr);
                        }



                        if(*(addr+4) != 0x40000000 ||
                           *(addr+5) != 0x40000000 ||
                           *(addr+6) != 0xC0000000)
                        {
                            TS_FAIL("INTR:Chip %ld Thread %ld bad LINKS"
                                    " 0x%08x 0x%08x 0x%08x",
                                    chip,thread,
                                    *(addr+4),*(addr+5),*(addr+6));
                        }
                    }
                }
            }
        }

        /**
         * @brief Disable then Enable interrupt handling
         */
        void test_enableDisable( void )
        {
            // TODO Temporaritly DISABLE in VBU until P8 support is added
            if( TARGETING::is_vpo() )
            {
                return;
            }

            uint32_t * addr = reinterpret_cast<uint32_t *>(cv_baseAddr);

            errlHndl_t err = INTR::disableExternalInterrupts();

            if(err)
            {
                TS_FAIL("INTR::disableExternalInterrupts returned error log");
                delete err;
                err = NULL;
            }

            if((*addr & 0xFF000000) != 0)
            {
                TS_FAIL("INTR not disabled");
            }

            err = INTR::enableExternalInterrupts();

            if(err)
            {
                TS_FAIL("INTR::enableExternalInterrupts returned error log");
                delete err;
                err = NULL;
            }


            if((*addr & 0xFF000000) != 0xFF000000)
            {
                TS_FAIL("INTR not enabled");
            }
        }

        /**
         * @brief Register an interrupt message queue, force an interrupt,
         *        then handle the interrupt.
         */
        void test_intr( void )
        {
            // Injecting interproc interrupt seems to work sometimes and not others
            // TODO need to investigate.
#ifdef __NOT_NOW__
            // TODO Temporaritly DISABLE in VBU until P8 support is added
            if( TARGETING::is_vpo() )
            {
                return;
            }

            extern trace_desc_t * g_trac_intr;

            errlHndl_t err = NULL;

            // Need to register a msgq
            msg_q_t msgQ = msg_q_create();
            err = INTR::registerMsgQ(msgQ,INTR::INTERPROC);
            if(err)
            {
                TS_FAIL("Errl from INTR::registerMsgQ()");
                delete err;
                err = NULL;
            }

            // Force an interrupt by writing to the MFFR on master
            volatile uint8_t * mfrr = 
                reinterpret_cast<uint8_t *>(cv_baseAddr+12);
            *(mfrr) = 0x55;
            *(mfrr) = 0xff;

            msg_t* msg = msg_wait(msgQ); // wait for interrupt msg
            TRACFCOMP(g_trac_intr,"Interrupt handled! Type=%lx",msg->type);
            if(msg->type != INTR::INTERPROC)
            {
                TS_FAIL("INTR::unexpected interrupt type %lx",msg->type);
            }
            msg_respond(msgQ,msg);
#endif
        }


    private:

        static uint64_t cv_baseAddr;
};

uint64_t IntrTest::cv_baseAddr = 0x20000000000ul;


#endif

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