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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_cme_copy_scan_ring.c $ */
/* */
/* OpenPOWER HCODE Project */
/* */
/* COPYRIGHT 2015,2017 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#include "p9_cme_copy_scan_ring.h"
#include "p9_cme_stop.h"
#include "cmehw_common.h"
#include "gpehw_common.h"
#include "p9_cme_img_layout.h"
#include "p9_hcode_image_defines.H"
/// @brief local constants.
enum
{
SPR_NUM_PIR = 286,
CME_IMAGE_BASE_ADDR = SRAM_START,
CME_INST_ID_MASK = 0x0000001F,
COPY_DEF_CME_ADDR = 0x00000000,
CME_PAGE_RD_SIZE = 0x20,
CME_IMG_HDR_ADDR = CME_IMAGE_BASE_ADDR + CME_HEADER_OFFSET,
};
void instance_scan_init( )
{
uint32_t l_cmePir = 0;
uint32_t l_bcLength = 0;
uint32_t l_bceMbase = CME_INST_SPEC_RING_START;
asm volatile ( "mfspr %0, %1 \n\t" : "=r" (l_cmePir) : "i" (SPR_NUM_PIR));
l_cmePir = l_cmePir & CME_INST_ID_MASK; // get CME instance number
cmeHeader_t* pCmeImgHdr = (cmeHeader_t*)(CME_IMG_HDR_ADDR);
//calculate start address of block copy and length of block copy
l_bcLength = pCmeImgHdr->g_cme_max_spec_ring_length; // integral multiple of 32.
//let us find out HOMER address where core specific scan rings reside.
l_bceMbase = l_bceMbase + ( l_cmePir * l_bcLength );
l_bceMbase = (l_bceMbase >> 5 );
// calculate the CME SRAM destination block number(SBASE)
// Offset below is wrt start of CME's SRAM. It is an integral
// multiple of 32 and is populated by Hcode Image build while
// building HOMER.
uint32_t cmeSbase = pCmeImgHdr->g_cme_core_spec_ring_offset;
PK_TRACE( "Start second block copy MBASE 0x%08x SBSE 0x%08x Len 0x%08x CME Ist %d",
l_bceMbase, cmeSbase, l_bcLength, l_cmePir );
startCmeBlockCopy( cmeSbase, l_bcLength, l_cmePir, PLAT_CME, BAR_INDEX_1, l_bceMbase );
PK_TRACE(" Done startCmeBlockCopy(instance_scan_init).");
}
BceReturnCode_t isScanRingCopyDone( )
{
BceReturnCode_t l_rc;
uint32_t l_cmePir = 0;
asm volatile ( "mfspr %0, %1 \n\t" : "=r" (l_cmePir) : "i" (SPR_NUM_PIR));
l_cmePir = l_cmePir & CME_INST_ID_MASK; // get CME instance number
while(1)
{
l_rc = checkCmeBlockCopyStatus( l_cmePir, PLAT_CME );
if( BLOCK_COPY_SUCCESS == l_rc )
{
break;
}
if( BLOCK_COPY_FAILED == l_rc )
{
PK_TRACE( "failed to copy instance specific scan ring on cme %d",
l_cmePir );
break;
}
}
return l_rc;
}
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