Andrew Waterman
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543ac91cf2
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Misaligned fetches can't happen at the I$ anymore
They are caught before the I$ ever sees them, so leverage that fact.
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2015-03-24 23:55:43 -07:00 |
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Andrew Waterman
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90b31586ff
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Misc. CSR fixes/improvements
- Support RV32 mstatus register
- Don't ignore mstatus.stie bit
- Support custom M-mode R/W CSRs for Raven chip
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2015-03-24 23:50:18 -07:00 |
|
Andrew Waterman
|
822698b567
|
support disabling supervisor mode (via UseVM parameter)
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2015-03-24 19:32:45 -07:00 |
|
Andrew Waterman
|
0332c1e7fe
|
Reduce latency of page table walks
A small cache in the PTW caches non-leaf PTEs, reducing latency and D$ misses.
|
2015-03-24 18:58:38 -07:00 |
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Andrew Waterman
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31d17cbf86
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Hard-wire LSB of JALR to 0, as sent to BTB
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2015-03-21 00:16:34 -07:00 |
|
Henry Cook
|
db5511300d
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Merge branch 'l2-subblock-merging'
|
2015-03-18 23:52:06 -07:00 |
|
Henry Cook
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3cf033180f
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pending read fix
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2015-03-18 22:41:09 -07:00 |
|
Henry Cook
|
004ad11af6
|
cleanup pending signals
|
2015-03-18 22:14:41 -07:00 |
|
Henry Cook
|
002851f836
|
disentangle is_hit logic
|
2015-03-18 21:11:40 -07:00 |
|
Henry Cook
|
b92ea60891
|
you can 'hit' with putblocks even when the tag doesn't match but you still better writeback
|
2015-03-18 19:32:46 -07:00 |
|
Henry Cook
|
fb8071c12d
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generous hit detection on PutBlocks
|
2015-03-18 18:49:32 -07:00 |
|
Henry Cook
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19059bf0eb
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put data can be used for ignts
|
2015-03-18 18:28:03 -07:00 |
|
Henry Cook
|
1ff184bf62
|
first cut at optimized state transitions
|
2015-03-18 17:55:05 -07:00 |
|
Henry Cook
|
e325399c87
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Re-split mem resp tag and data queues
|
2015-03-18 12:49:53 -07:00 |
|
Henry Cook
|
42aa4aa8ca
|
Secondary miss param
|
2015-03-17 22:53:50 -07:00 |
|
Henry Cook
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b364d387de
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Merge branch 'l2-subblock-merging' of github.com:ucb-bar/uncore into l2-subblock-merging
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2015-03-17 22:46:54 -07:00 |
|
Henry Cook
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825c4b2850
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make ignts more eager
|
2015-03-17 22:44:53 -07:00 |
|
Yunsup Lee
|
aa5435800d
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fix get merging, and always turn it on
|
2015-03-17 22:43:00 -07:00 |
|
Yunsup Lee
|
53617d6df5
|
fix long-standing dcache bug
have to initialize register, if it is used the same cycle it is begin written
|
2015-03-17 21:45:17 -07:00 |
|
Yunsup Lee
|
f4f59464df
|
fix pending_puts initialization
|
2015-03-17 21:44:26 -07:00 |
|
Henry Cook
|
0e4cf74d8a
|
always merge Puts
|
2015-03-17 20:53:27 -07:00 |
|
Henry Cook
|
d48775eecb
|
cleanup outdated comments
|
2015-03-17 20:31:23 -07:00 |
|
Henry Cook
|
638bace858
|
avoid reading data when write mask is full
|
2015-03-17 20:28:21 -07:00 |
|
Henry Cook
|
b9591b297c
|
added s_wait_puts to L2AcquireTracker
|
2015-03-17 20:28:21 -07:00 |
|
Henry Cook
|
2d3f947a9c
|
cleaned up finish counter
|
2015-03-17 20:28:21 -07:00 |
|
Yunsup Lee
|
9de5161d7a
|
guard all writes to data ram with masks
|
2015-03-17 20:24:04 -07:00 |
|
Yunsup Lee
|
d14efce0b4
|
fix wmask_buffer initialization
|
2015-03-17 19:54:11 -07:00 |
|
Yunsup Lee
|
2d7375760d
|
set pending_writes for puts
|
2015-03-17 18:35:04 -07:00 |
|
Yunsup Lee
|
504eedbf89
|
fixes in in bit manipulation
|
2015-03-17 18:07:52 -07:00 |
|
Henry Cook
|
b08dced37c
|
first cut at pending scoreboarding
|
2015-03-17 17:51:00 -07:00 |
|
Yunsup Lee
|
4fd01d82b8
|
don't block finish messages when grant'ing
|
2015-03-17 17:48:02 -07:00 |
|
Yunsup Lee
|
a52a729ab9
|
bugfix wmask handling
|
2015-03-17 15:54:21 -07:00 |
|
Henry Cook
|
fc0ae81a97
|
added finish counter
|
2015-03-17 15:04:30 -07:00 |
|
Henry Cook
|
d774afaf73
|
Merge branch 'l2-subblock-merging' of github.com:ucb-bar/uncore into l2-subblock-merging
|
2015-03-17 13:10:42 -07:00 |
|
Henry Cook
|
5c2461c743
|
merge data wmask bugfix
|
2015-03-17 13:09:47 -07:00 |
|
Henry Cook
|
dc88614094
|
overlapping read/resps in l2 fix
|
2015-03-17 13:09:47 -07:00 |
|
Henry Cook
|
730a13abf2
|
pending read fix
|
2015-03-17 13:09:46 -07:00 |
|
Henry Cook
|
23f8033df5
|
turn off self probes again
|
2015-03-17 13:09:46 -07:00 |
|
Henry Cook
|
d9598d26f2
|
fix assert
|
2015-03-17 13:09:46 -07:00 |
|
Henry Cook
|
6d565d22e3
|
clean up acquire alloc in hub
|
2015-03-17 13:09:45 -07:00 |
|
Henry Cook
|
3f070eee1f
|
first cut of merging puts/gets
|
2015-03-17 13:09:44 -07:00 |
|
Henry Cook
|
6af48e168a
|
cleanup mergeData buffer
|
2015-03-17 13:08:14 -07:00 |
|
Henry Cook
|
9bedde9a8a
|
re-merge mem resp queues
|
2015-03-17 12:22:57 -07:00 |
|
Henry Cook
|
1471d9debc
|
fix assert
|
2015-03-17 05:40:05 -07:00 |
|
Yunsup Lee
|
0e51fef200
|
bugfix where an in-progress acquire can be blocked by another acquire tracker being free'd up in between
|
2015-03-17 05:37:56 -07:00 |
|
Henry Cook
|
ce9d4b6e70
|
further amo cleanups
|
2015-03-17 05:37:41 -07:00 |
|
Yunsup Lee
|
5b4653b621
|
fix rocc exception/s bit
|
2015-03-17 05:08:23 -07:00 |
|
Henry Cook
|
257dcedcb3
|
merge data wmask bugfix
|
2015-03-17 04:58:54 -07:00 |
|
Andrew Waterman
|
66388be1ce
|
Merge [shm]call into ecall, [shm]ret into eret
|
2015-03-17 02:24:41 -07:00 |
|
Henry Cook
|
fd8f6ff026
|
overlapping read/resps in l2 fix
|
2015-03-17 02:10:30 -07:00 |
|