XG2 Shared Accelerator Cache:
L1Cache
-
L2Cache
-
Directory
-
DMA
-
AccelL1Cache
- AccelL2Cache -
GPUCopyDMA
-
CrossingGuard
getM
getS
putM
InvAck
Writeback
Inv
DataM
DataS
WBAck
All Acks
L2 Replacement
L2 Replacement Clean
RecycleReq
RecycleResp
I
a
r
k
qreq1
/
IM
b
r
m
qreq1
/
IS
d
qreqBC
zzfq
zzfs
I
S
t
k
i
p
r
rr
qreq1
/
SM
m
fr
r
rr
uu h
qreq1
t
w
i
s
qreqBC
/
SI
t
w
i
s
/
SR
zzfq
zzfs
S
MO
e r
g
r
rr
uu h
qreq1
/
M
m
fr
r
rr
uu h
qreq1
/
MOS
t
w
c
s
u
qreqBC
/
I
t
w
c wm
s
/
MRI
zzfq
zzfs
MO
M
h
k
qreq1
/
MM
h
m
qreq1
/
MMOS
n1p
yo
j
qput1
/
MO
t
w
h
s
qreqBC
/
MI
t
w
h
s
/
MR
zzfq
zzfs
M
MOS
t
w
k
i
p
r
rr
qreq1
/
MOSM
m
fr
uu h
r
rr
qreq1
t
w
i
s
qreqBC
/
MOSI
t
w
i
s
/
MOSR
t
w
i
s
/
ER
zzfq
zzfs
MOS
IM
zz 1r
zz 1r
d
qreqBC
n
g
r
rr
uu m
qrspBC
/
M
z
z
zzfq
zzfs
IM
IS
zz 1r
m
qreq1
d
qreqBC
n
f
uu m
r
rr
qrspBC
/
MOS
n
f
uu m
r
rr
qrspBC
/
S
z
z
zzfq
zzfs
IS
SM
zz 1r
zz 1r
o
p
qrsp1
zz BCr
y
u
a
qt
/
IM
z
z
zzfq
zzfs
SM
SI
z
z
o
p
qrsp1
d
u
qt
/
I
zzfq
zzfs
SI
SR
z
z
o
p
qrsp1
qreqBC
/
SI
c ws
qt
/
SRI
zzfq
zzfs
SR
SRI
z
z
d
qreqBC
u
qrspBC
/
I
zzfq
zzfs
SRI
MR
z
z
n1 tp
j
qput1
/
MRi
hr
qrsp1
n t
yo
c wm
qrsp1
/
MRI
qreqBC
/
MI
zzfq
zzfs
MR
MRI
z
z
d
qreqBC
u
qrspBC
/
I
zzfq
zzfs
MRI
MI
z
z
n1 tp
j
qput1
/
MIi
hr
qrsp1
n t
yo
c
u
qrsp1
/
I
zzfq
zzfs
MI
MOSI
z
z
o
p
qrsp1
c
u
qt
/
I
zzfq
zzfs
MOSI
MOSR
z
z
o
p
qrsp1
qreqBC
/
MOSI
c wm
qt
/
MRI
zzfq
zzfs
MOSR
ER
z
z
o
p
qrsp1
qreqBC
/
MOSI
c we
qt
/
MRI
zzfq
zzfs
ER
MM
zz 1r
zz 1r
n1p
j
qput1
/
MMi
hr
qrsp1
nw
g
uu m
qrsp1
/
M
zz BCr
z
z
zzfq
zzfs
MM
MMOS
zz 1r
zz 1r
n1p
j
qput1
/
MMOSi
hr
qrsp1
nw
f
uu m
yo
qrsp1
/
MOS
zz BCr
z
z
zzfq
zzfs
MMOS
MOSM
zz 1r
zz 1r
o
p
qrsp1
zz BCr
g
r
rr
y
u
uu m
qt
/
M
z
z
zzfq
zzfs
MOSM
MIi
z
z
yo
c
u
qrsp1
/
I
zzfq
zzfs
MIi
MRi
z
z
yo
c wm
qrsp1
/
MRI
qreqBC
/
MIi
zzfq
zzfs
MRi
MMi
zz 1r
zz 1r
g
uu m
qrsp1
/
M
zz BCr
z
z
zzfq
zzfs
MMi
MMOSi
zz 1r
zz 1r
f
uu m
yo
qrsp1
/
MOS
zz BCr
z
z
zzfq
zzfs
MMOSi
getM
getS
putM
InvAck
Writeback
Inv
DataM
DataS
WBAck
All Acks
L2 Replacement
L2 Replacement Clean
RecycleReq
RecycleResp