move stuff around so PageShift is defined before it is needed

don't ever include a file while in a namespace
start of making alpha console new memsystem happy
Make a BasePioDevice which is what all the simple Pio devices will inherit from
add a description of when the data pointer will have memory

arch/alpha/isa_traits.hh:
    don't ever include a file while in a namespace
dev/alpha_console.cc:
dev/alpha_console.hh:
    start of making alpha console new memsystem happy
dev/io_device.cc:
dev/io_device.hh:
    Make a BasePioDevice which is what all the simple Pio devices will inherit from
mem/packet.hh:
    add a description of when the data pointer will have memory

--HG--
extra : convert_revision : 495c0915541f9cad3eb42891e60b4ecbee7952bf

1 files changed, 5 insertions, 1 deletions

diff --git a/mem/packet.hh b/mem/packet.hh
index ef28a7c9e..91e56385d 100644
--- a/mem/packet.hh
+++ b/mem/packet.hh
@@ -97,7 +97,11 @@ struct Packet
 
     /** A pointer to the data being transfered.  It can be differnt sizes
         at each level of the heirarchy so it belongs in the packet,
-        not request*/
+        not request.
+        This pointer may be NULL! If it isn't null when received by the producer
+        of data it refers to memory that has not been dynamically allocated.
+        Otherwise the producer should simply allocate dynamic memory to use.
+        */
     PacketDataPtr data;
 
     /** Indicates the size of the request. */