MPIPL: Reserve memory to capture architected registers data

- Split SPIRAH memory to accommodate architected register ntuple.
  Today we have 1K memory for SPIRAH and it uses 288 bytes. Lets split
  this into two parts :
    SPIRAH (756 bytes)
    architected register memory (256 bytes)

- Update SPIRAH architected register ntuple

- Calculate memory required to capture architected registers data
  Ideally we should use HDAT provided data (proc_dump_area->thread_size).
  But we are not getting this data during boot. Hence lets reserve fixed
  memory for architected registers data collection.

- Add architected registers destination memory to reserve-memory DT node.

Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
[oliver: rebased]
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/skiboot.lds.S b/skiboot.lds.S
index 67c58b3..5b4bb41 100644
--- a/skiboot.lds.S
+++ b/skiboot.lds.S
@@ -69,6 +69,11 @@ SECTIONS
 		KEEP(*(.spirah.data))
 	}
 
+	. = PROC_DUMP_AREA_OFF;
+	.procdump : {
+		KEEP(*(.procdump.data))
+	}
+
 	. = PROCIN_OFF;
 	.procin.data : {
 		KEEP(*(.procin.data))