verif/env/niu/test_utils/vera/niu_ipp_intr_utils.vr

// ========== Copyright Header Begin ==========================================
//
// OpenSPARC T2 Processor File: niu_ipp_intr_utils.vr
// Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved
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#include <vera_defines.vrh>
#include "niu_int_dev.vrh"
#include "niu_int_mgr.vrh"
#include "mbox_class.vrh"
#include "get_mbox_id.vrh"
#include "neptune_memory_map.vri"
#include "ipp_memory_map.vri"
#include "mac_defines.vri"
#include "pio_driver.vrh"
#include "mac_pio_class.vrh"
#include "xmac_util.vrh"
#include "bmac_util.vrh"
#include "mac_shadow_class.vrh"
#include "xmac_shadow_class.vrh"
#include "vega_shadow_class.vrh"
#include "cMesg.vrh"
#include "mac_defines.vri"

extern Mesg be_msg;
extern niu_gen_pio gen_pio_drv;
extern CNiuIntrMgr NiuIntrMgr;
extern pio_drv pio_driver_class;
extern mac_pio_cl mac_pio_class;
extern shadow_cl shadow_class;
extern mac_util_class mac_util;
extern bmac_util_class bmac_util;

/* defined in ipp_memory_map.vri, listed here just for reference
#define IPP_MASK_ECC_ERR_MX     7
#define IPP_MASK_DFIFO_EOP_SOP  6
#define IPP_MASK_DFIFO_UC       5
#define IPP_MASK_PFIFO_PAR      4
#define IPP_MASK_PFIFO_OVER     3
#define IPP_MASK_PFIFO_UND      2
#define IPP_MASK_BAD_CS         1
#define IPP_MASK_PKT_DIS_CNT    0

#define IPP_STAT_SOP_MISS       31      // corresponds to MASK 6
#define IPP_STAT_EOP_MISS       30      // corresponds to MASK 6
#define IPP_STAT_DFIFO_UE       29:28   // corresponds to MASK 5
#define IPP_STAT_DFIFO_CE       27:26
#define IPP_STAT_DFIFO_ECC      25:24
#define IPP_STAT_DFIFO_ECC_ID   22:12
#define IPP_STAT_PFIFO_PERR     11      // corresponds to MASK 4
#define IPP_STAT_ECC_ERR_MA     10      // corresponds to MASK 7
#define IPP_STAT_PFIFO_ERR_ID   9:4
#define IPP_STAT_PFIFO_OVER     3       // corresponds to MASK 3
#define IPP_STAT_PFIFO_UND      2       // corresponds to MASK 2
#define IPP_STAT_BAD_CS_MX      1       // corresponds to MASK 1
#define IPP_STAT_PKT_DIS_MX     0       // corresponds to MASK 0
*/

class CNiuIntrDevIPPm extends CNiuIntrDev {
  integer isr_count = 0;
  integer lf_intr_cnt = 0;
  integer rf_intr_cnt = 0;
  bit [3:0] ports_vld = 0;

  task new(bit [3:0] ports_valid, integer dev_id) {
    super.new(dev_id);
    ports_vld = ports_valid;
    ErrId = 2; // for Interrupt Manager to Kick off the right Error Device's ISR
               // In the PIO_SYS_ERR_STAT, bit[2] is Interrupt for IPP, that is why.
  }
  task set_masks(bit [3:0] ports_valid);
  function integer isr( (bit[1:0] ldf_flags=0) );
  task check_ipp_int(integer mac_id);
}

function integer CNiuIntrDevIPPm::isr( (bit[1:0] ldf_flags=0) ) {
  bit[31:0] rd_data, rd_status, rd_mask;
  bit[39:0] base_addr;
  bit [63:0] address;
  integer i;

  printf("Start in CNiuIntrDevIPP ISR DevId time=%0d\n", super.dev_id, get_time(LO));
  isr_done = 0;
  SetPendingFlag();

  if(ldf_flags!=2) printf("ERROR ldf_flags is not set to the correct value of 2\n");

  for(i=0;i<4;i++){
   if (ports_vld[i]) {
     printf("CNiuIntrDevIPP Kicking off PerPort-ISR IntrDevId=%0d ipp_num=%0d LDF_flags=%0d time=%0d\n",
                super.dev_id, i, ldf_flags, get_time(LO));
     check_ipp_int(i);
   }
  }

  ClrPendingFlag();
  isr_done=1;
  printf("End in CNiuIntrDevIPP ISR DevId time=%0d\n", super.dev_id, get_time(LO));
}

task CNiuIntrDevIPPm::check_ipp_int(integer mac_id) {
  bit[31:0] rd_data, rd_status, rd_mask;
  bit[39:0] base_addr;
  bit[63:0] rd_data64;
  bit[63:0] address;

  case(mac_id){
    0:address = FZC_IPP_BASE_ADDRESS+IPP_INT_STATUS+IPP_0_RANGE;
    1:address = FZC_IPP_BASE_ADDRESS+IPP_INT_STATUS+IPP_1_RANGE;
    2:address = FZC_IPP_BASE_ADDRESS+IPP_INT_STATUS+IPP_2_RANGE;
    3:address = FZC_IPP_BASE_ADDRESS+IPP_INT_STATUS+IPP_3_RANGE;
    default: {}
  }

  gen_pio_drv.pio_rd(address, rd_data64, 1'b0);
  printf("CNiuIntrDevIPP INT_STAT id=%0d status=0x%0x for ipp %0d\n", super.dev_id, rd_data64, mac_id);

/**** Each Bit ISR Response ****/
  if(rd_data64[IPP_STAT_ECC_ERR_MA]) {
    printf("CNiuIntrDevIPP IPP_INT_STAT IPP_MASK_ECC_ERR_MX is set\n");
    // write 0 to ECC_CNTR to  clear this bit
    case(mac_id){
     0:address = FZC_IPP_BASE_ADDRESS+IPP_ECC_ERR_COUNTER+IPP_0_RANGE;
     1:address = FZC_IPP_BASE_ADDRESS+IPP_ECC_ERR_COUNTER+IPP_1_RANGE;
     2:address = FZC_IPP_BASE_ADDRESS+IPP_ECC_ERR_COUNTER+IPP_2_RANGE;
     3:address = FZC_IPP_BASE_ADDRESS+IPP_ECC_ERR_COUNTER+IPP_3_RANGE;
     default: {}
    }
    gen_pio_drv.pio_rd(address, rd_data64, 1'b0); // Read to Clear the ECC Error Counter
    // Now, read the IPP_INT_STAT again to make sure it is really cleared
    case(mac_id){
     0:address = FZC_IPP_BASE_ADDRESS+IPP_INT_STATUS+IPP_0_RANGE;
     1:address = FZC_IPP_BASE_ADDRESS+IPP_INT_STATUS+IPP_1_RANGE;
     2:address = FZC_IPP_BASE_ADDRESS+IPP_INT_STATUS+IPP_2_RANGE;
     3:address = FZC_IPP_BASE_ADDRESS+IPP_INT_STATUS+IPP_3_RANGE;
     default: {}
    }
    gen_pio_drv.pio_rd(address, rd_data64, 1'b0);
    if (rd_data64[IPP_STAT_ECC_ERR_MA])
        be_msg.print(e_mesg_error, "CNiuIntrDevIPP::check_ipp_int", "ISR",
                "Could not get IPP_STAT_ECC_ERR_MA bit cleared in the ISR\n");
    else
        printf("IPP_STAT_ECC_ERR_MA bit is just cleared in the ISR\n");

    // pre-program IPP_ECC_ERR_COUNTER to an almost-full value to get the next intr sooner
    case(mac_id){
     0:address = FZC_IPP_BASE_ADDRESS+IPP_ECC_ERR_COUNTER+IPP_0_RANGE;
     1:address = FZC_IPP_BASE_ADDRESS+IPP_ECC_ERR_COUNTER+IPP_1_RANGE;
     2:address = FZC_IPP_BASE_ADDRESS+IPP_ECC_ERR_COUNTER+IPP_2_RANGE;
     3:address = FZC_IPP_BASE_ADDRESS+IPP_ECC_ERR_COUNTER+IPP_3_RANGE;
     default: {}
    }
    gen_pio_drv.pio_wr(address, rd_data64); // Write 8'hf0 to IPP_ECC_ERR_COUNTER
  }
/**** Each Bit ISR Response ****/
  if(rd_data64[IPP_STAT_SOP_MISS] | rd_data64[IPP_STAT_EOP_MISS]) {
  }
/**** Each Bit ISR Response ****/
  if(rd_data64[IPP_STAT_DFIFO_UE]) {
  }
/**** Each Bit ISR Response ****/
  if(rd_data64[IPP_STAT_PFIFO_PERR]) {
  }
/**** Each Bit ISR Response ****/
  if(rd_data64[IPP_STAT_PFIFO_OVER]) {
  }
/**** Each Bit ISR Response ****/
  if(rd_data64[IPP_STAT_PFIFO_UND]) {
  }
/**** Each Bit ISR Response ****/
  if(rd_data64[IPP_STAT_BAD_CS_MX]) {
  }
/**** Each Bit ISR Response ****/
  if(rd_data64[IPP_STAT_PKT_DIS_MX]) {
  }
}

task CNiuIntrDevIPPm::set_masks (bit [3:0] ports_vld) {
  bit[39:0] base_addr;
  bit[31:0] rd_data;
  bit[63:0] address;
  integer i;

for (i=0;i<4;i++) {
  if (ports_vld[i]) {
  printf("CNiuIntrDevIPP setting masks=0 mac_id=%0d\n", i);
   case(i){
    0:address = FZC_IPP_BASE_ADDRESS+IPP_INT_MASK+IPP_0_RANGE;
    1:address = FZC_IPP_BASE_ADDRESS+IPP_INT_MASK+IPP_1_RANGE;
    2:address = FZC_IPP_BASE_ADDRESS+IPP_INT_MASK+IPP_2_RANGE;
    3:address = FZC_IPP_BASE_ADDRESS+IPP_INT_MASK+IPP_3_RANGE;
    default: {}
   }
  gen_pio_drv.pio_wr(address, 64'h0); // Enable all the 8 interrupts
  }
}
}