EDAC/igen6: Fix conversion of system address to physical memory address

The conversion of system address to physical memory address (as viewed by
the memory controller) by igen6_edac is incorrect when the system address
is above the TOM (Total amount Of populated physical Memory) for Elkhart
Lake and Ice Lake (Neural Network Processor). Fix this conversion.

Fixes: 10590a9d ("EDAC/igen6: Add EDAC driver for Intel client SoCs using IBECC")
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/stable/20240814061011.43545-1-qiuxu.zhuo%40intel.com

drivers/edac/igen6_edac.c

@@ -316,7 +316,7 @@ static u64 ehl_err_addr_to_imc_addr(u64 eaddr, int mc)
 	if (igen6_tom <= _4GB)
 		return eaddr + igen6_tolud - _4GB;
 
-	if (eaddr < _4GB)
+	if (eaddr >= igen6_tom)
 		return eaddr + igen6_tolud - igen6_tom;
 
 	return eaddr;