From WikiChip
Difference between revisions of "loongson/godson 2/2g"
Line 23: | Line 23: | ||
| frequency 2 = | | frequency 2 = | ||
| frequency N = | | frequency N = | ||
− | | bus type = | + | | bus type = HyperTransport 1.0 |
− | | bus speed = | + | | bus speed = 400 MHz |
− | | bus rate = | + | | bus rate = |
− | | bus links = | + | | bus links = |
− | | clock multiplier = | + | | clock multiplier = 2.5 |
| isa family = MIPS | | isa family = MIPS | ||
Line 90: | Line 90: | ||
}} | }} | ||
'''Godson-2G''' is a {{arch|64}} [[MIPS]] performance processor developed by [[Institute of Computing Technology of the Chinese Academy of Sciences|ICT]] and later [[Loongson]] for desktop computers. Introduced in late-[[2010]], the Godson-2G operates at up to 1 GHz consuming up to 4 W. This chip was manufactured on [[STMicroelectronics]]' [[65 nm process]]. | '''Godson-2G''' is a {{arch|64}} [[MIPS]] performance processor developed by [[Institute of Computing Technology of the Chinese Academy of Sciences|ICT]] and later [[Loongson]] for desktop computers. Introduced in late-[[2010]], the Godson-2G operates at up to 1 GHz consuming up to 4 W. This chip was manufactured on [[STMicroelectronics]]' [[65 nm process]]. | ||
+ | |||
+ | This specific models incorporates a considerably larger [[2nd level cache]] compared to the rest of the {{\\\|Godson 2}} family along with an extended number of additional interfaces in a relatively large package. | ||
+ | |||
+ | == Cache == | ||
+ | {{main|loongson/microarchitectures/GS464#Memory_Hierarchy|l1=GS464 § Cache}} | ||
+ | {{cache size | ||
+ | |l1 cache=128 KiB | ||
+ | |l1i cache=64 KiB | ||
+ | |l1i break=1x64 KiB | ||
+ | |l1i desc=4-way set associative | ||
+ | |l1d cache=64 KiB | ||
+ | |l1d break=1x64 KiB | ||
+ | |l1d desc=4-way set associative | ||
+ | |l1d policy= | ||
+ | |l2 cache=1 MiB | ||
+ | |l2 break=1x1 MiB | ||
+ | |l2 desc=4-way set associative | ||
+ | |l2 policy= | ||
+ | }} | ||
+ | |||
+ | == Memory controller == | ||
+ | {{memory controller | ||
+ | |type=DDR3-800 | ||
+ | |ecc=Yes | ||
+ | |max mem=4 GiB | ||
+ | |controllers=1 | ||
+ | |channels=1 | ||
+ | |max bandwidth=11.92 GiB/s | ||
+ | |bandwidth schan=11.92 GiB/s | ||
+ | }} | ||
+ | |||
+ | == Expansions == | ||
+ | This chip has integrated [[HyperTransport]] 1.0 operating at 400 MHz. | ||
+ | {{expansions | ||
+ | |pci width = 32 bit | ||
+ | |pci clock = 66 MHz | ||
+ | |pcix width = 32 bit | ||
+ | |pcix clock = 133 MHz | ||
+ | |lpc = Yes | ||
+ | }} | ||
== Die Shot == | == Die Shot == | ||
Line 99: | Line 139: | ||
== References == | == References == | ||
* Zhao, Ji-Ye, et al. "Physical Design Methodology for Godson-2G Microprocessor." Journal of Computer Science and Technology 25.2 (2010): 225-231. | * Zhao, Ji-Ye, et al. "Physical Design Methodology for Godson-2G Microprocessor." Journal of Computer Science and Technology 25.2 (2010): 225-231. | ||
+ | * Weiwu Hu, Yunji Chen, "GS464V: A High-Performance Low-Power XPU with 512-Bit Vector Extension", HotChips 22 (2010). |
Revision as of 01:14, 19 March 2017
Template:mpu Godson-2G is a 64-bit MIPS performance processor developed by ICT and later Loongson for desktop computers. Introduced in late-2010, the Godson-2G operates at up to 1 GHz consuming up to 4 W. This chip was manufactured on STMicroelectronics' 65 nm process.
This specific models incorporates a considerably larger 2nd level cache compared to the rest of the Godson 2 family along with an extended number of additional interfaces in a relatively large package.
Cache
- Main article: GS464 § Cache
Cache Organization
Cache is a hardware component containing a relatively small and extremely fast memory designed to speed up the performance of a CPU by preparing ahead of time the data it needs to read from a relatively slower medium such as main memory. The organization and amount of cache can have a large impact on the performance, power consumption, die size, and consequently cost of the IC. Cache is specified by its size, number of sets, associativity, block size, sub-block size, and fetch and write-back policies. Note: All units are in kibibytes and mebibytes. |
|||||||||||||||||||||||||
|
Memory controller
Integrated Memory Controller
|
||||||||||||||
|
Expansions
This chip has integrated HyperTransport 1.0 operating at 400 MHz.
Die Shot
- 65 nm process
- 100,000,000 transistors
- 53.54 mm² die size
References
- Zhao, Ji-Ye, et al. "Physical Design Methodology for Godson-2G Microprocessor." Journal of Computer Science and Technology 25.2 (2010): 225-231.
- Weiwu Hu, Yunji Chen, "GS464V: A High-Performance Low-Power XPU with 512-Bit Vector Extension", HotChips 22 (2010).
Facts about "Godson-2G - Loongson"
has ecc memory support | true + |
l1$ size | 128 KiB (131,072 B, 0.125 MiB) + |
l1d$ description | 4-way set associative + |
l1d$ size | 64 KiB (65,536 B, 0.0625 MiB) + |
l1i$ description | 4-way set associative + |
l1i$ size | 64 KiB (65,536 B, 0.0625 MiB) + |
l2$ description | 4-way set associative + |
l2$ size | 1 MiB (1,024 KiB, 1,048,576 B, 9.765625e-4 GiB) + |
max memory bandwidth | 11.92 GiB/s (12,206.08 MiB/s, 12.799 GB/s, 12,799.003 MB/s, 0.0116 TiB/s, 0.0128 TB/s) + |
max memory channels | 1 + |
supported memory type | DDR3-800 + |