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Difference between revisions of "samsung/microarchitectures/m3"
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| + | * LLVM: lib/Target/AArch64/AArch64SchedExynosM3.td | ||
Revision as of 02:36, 5 February 2018
| Edit Values | |
| Mongoose 3 µarch | |
| General Info | |
| Arch Type | CPU |
| Designer | Samsung |
| Manufacturer | Samsung |
| Process | 10 nm |
| Pipeline | |
| OoOE | Yes |
| Speculative | Yes |
| Reg Renaming | Yes |
| Decode | 6-way |
| Instructions | |
| ISA | ARMv8 |
| Cache | |
| L1I Cache | 64 KiB/core 4-way set associative |
| L1D Cache | 32 KiB/core 8-way set associative |
| L2 Cache | 2 MiB/cluster 16-way set associative |
| Succession | |
Mongoose 3 (M3) is an ARM microarchitecture designed by Samsung for their consumer electronics serving as a successor to the Mongoose 2.
Contents
Process Technology
The M3 was fabricated on Samsung's second generation 10LPP (Low Power Plus) process.
Compiler support
| Compiler | Arch-Specific | Arch-Favorable |
|---|---|---|
| GCC | -march=armv8-a+crypto |
-mtune=exynos-m3
|
Architecture
 |
Preliminary Data! Information presented in this article deal with future products, data, features, and specifications that have yet to be finalized, announced, or released. Information may be incomplete and can change by final release. |
Key changes from Mongoose 1/M2
- 10nm 10LPP process (from 1st gen 10LPP)
- Core
- Front-end
- larger instruction queue (40 entries, up from 24)
- 6-way decode (from 4)
- µOP fusion
- Can fuse address generation and memory operations
- Can fuse literal generation operations
- Back-end
- larger ReOrder buffer (228 entries, from 96 entries)
- Has a fastpath logical shift of up to 3 places
- Front-end
- branch misprediction penalty increased (16, from 14)
This list is incomplete; you can help by expanding it.
References
- LLVM: lib/Target/AArch64/AArch64SchedExynosM3.td
Facts about "Exynos M3 - Microarchitectures - Samsung"
| codename | Mongoose 3 + |
| designer | Samsung + |
| full page name | samsung/microarchitectures/m3 + |
| instance of | microarchitecture + |
| instruction set architecture | ARMv8 + |
| manufacturer | Samsung + |
| microarchitecture type | CPU + |
| name | Mongoose 3 + |
| process | 10 nm (0.01 μm, 1.0e-5 mm) + |