Commit Graph
8 Commits
Author SHA1 Message Date
Palmer DabbeltandPalmer Dabbelt c9e1b72972 Don't assign SInt(-1) to a UInt 2016-03-23 16:24:27 -07:00
Palmer Dabbelt aa22f175c3 Add cloneType methods for Chisel3 2016-03-21 13:35:02 -07:00
Palmer Dabbelt 1344d09cef Fix the SCR file for Chisel 3 2016-03-21 11:55:18 -07:00
Palmer DabbeltandHenry Cook e2185d40f6 Avoid right-shift by larger that the bit width
FIRRTL bails out on this.  There's an outstanding bug, this is just a
workaround.  See https://github.com/ucb-bar/firrtl/issues/69
2016-03-10 17:37:40 -08:00
Palmer DabbeltandHenry Cook 8c7e29eacd Avoid generating 0-width UInts
Chisel3 requires a 1-bit width to represent UInt(0).
2016-03-10 17:37:40 -08:00
Palmer DabbeltandHenry Cook 4acdc67485 Add an assertion in the NastiIOTileLink converter
This uses an reorder queue but doesn't check to ensure that the data it fetches
from the queue is actually in the queue before using it.  It seems that during
correct operation this never breaks, but I'm trying to get the backup memory
port working again and this assertion fails with it enabled (without the
assertion the core just gets a bogus data beat dies).

Closes #16
2016-03-01 12:23:32 -08:00
Palmer Dabbelt ebffd69b8e Provide both __OFFSET and __PADDR for SCR entries
This was recently changed to write out physical addresses for SCR file entries,
but to bring up the chip we need SCR offsets so we can write the uncore SCR
file over HTIF.  This changes the map generator to generate both.

Without this change things happened to work anyway because the high bits were
getting dropped by the SCR file.
2016-02-25 21:48:32 -08:00
Palmer Dabbelt 1ac9f59b31 Allow SCR files to be enumerated in C headers
Right now there's no way to ensure that SCR addresses don't conflict within
RocketChip.  Since upstream only has one of them this isn't a big deal, but we
want to add a whole bunch more to control all the IP on Hurricane.

This patch adds some Scala code to allocate registers inside the SCR file,
ensure they don't conflict, to provide names for SCRs, attach registers to the
SCR file, and generate a C header file that contains the addresses of every SCR
on a chip.

With this patch we'll be able to get rid of that constant in the testbench.
This also allows us to kill one of the Raven diffs, which is does pretty much
the same thing (just in a second SCR file, and hacked in).
2016-02-17 14:21:12 -08:00