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-rwxr-xr-ximport/chips/p9/procedures/utils/stopreg/p9_stop_api.C23
1 files changed, 21 insertions, 2 deletions
diff --git a/import/chips/p9/procedures/utils/stopreg/p9_stop_api.C b/import/chips/p9/procedures/utils/stopreg/p9_stop_api.C
index 3da7a299..e855214f 100755
--- a/import/chips/p9/procedures/utils/stopreg/p9_stop_api.C
+++ b/import/chips/p9/procedures/utils/stopreg/p9_stop_api.C
@@ -32,6 +32,8 @@
// *HWP Team : PM
// *HWP Level : 2
// *HWP Consumed by : HB:HYP
+
+// *INDENT-OFF*
#ifdef PPC_HYP
#include <HvPlicModule.H>
#endif
@@ -69,6 +71,8 @@ const StopSprReg_t g_sprRegister[] =
};
const uint32_t MAX_SPR_SUPPORTED = 10;
+const uint32_t LEGACY_CORE_SCOM_SUPPORTED = 15;
+const uint32_t LEGACY_QUAD_SCOM_SUPPORTED = 63;
//-----------------------------------------------------------------------------
@@ -835,12 +839,24 @@ StopReturnCode_t p9_stop_save_scom( void* const i_pImage,
l_maxScomRestoreEntry =
*(uint32_t*)((uint8_t*)i_pImage + CPMR_HOMER_OFFSET + CPMR_MAX_SCOM_REST_PER_CORE_BYTE);
pScomEntry = CORE_ID_SCOM_START(i_pImage, chipletId )
- cacheEntry = false;
+ cacheEntry = false;
+
+ if( !l_maxScomRestoreEntry )
+ {
+ //Old HB and new STOP API case. Retain legacy Number
+ l_maxScomRestoreEntry = SWIZZLE_4_BYTE(LEGACY_CORE_SCOM_SUPPORTED);
+ }
}
else
{
l_maxScomRestoreEntry =
*(uint32_t*)((uint8_t*)i_pImage + QPMR_HOMER_OFFSET + QPMR_QUAD_MAX_SCOM_ENTRY_BYTE);
+
+ if( !l_maxScomRestoreEntry )
+ {
+ // Incase of a bad HOMER header initialization, fall back on legacy number.
+ l_maxScomRestoreEntry = SWIZZLE_4_BYTE(LEGACY_QUAD_SCOM_SUPPORTED);
+ }
// chiplet is a cache. let us find start address of cache section
// associated with given chiplet. A cache section associated with
// given chiplet is split in to L2, L3 and EQ area.
@@ -891,13 +907,16 @@ StopReturnCode_t p9_stop_save_scom( void* const i_pImage,
break;
}
+
if(( imageVer > LEGACY_SCOM_RESTORE_VER ) && ( cacheEntry ) )
{
//STOP API migrated to newer algorithm for creation of entries
+
pScomEntry = CACHE_SCOM_ADDR(i_pImage,
chipletId,
l_maxScomRestoreEntry )
- entryLimit = l_maxScomRestoreEntry;
+
+ entryLimit = l_maxScomRestoreEntry;
}
if(( !pScomEntry ) || ( l_rc ) )
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