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331722 |
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29-Mar-2018 |
eadler |
Revert r330897:
This was intended to be a non-functional change. It wasn't. The commit message was thus wrong. In addition it broke arm, and merged crypto related code.
Revert with prejudice.
This revert skips files touched in r316370 since that commit was since MFCed. This revert also skips files that require $FreeBSD$ property changes.
Thank you to those who helped me get out of this mess including but not limited to gonzo, kevans, rgrimes.
Requested by: gjb (re)
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279252 |
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24-Feb-2015 |
nwhitehorn |
New pmap implementation for 64-bit PowerPC processors. The main focus of this change is to improve concurrency: - Drop global state stored in the shadow overflow page table (and all other global state) - Remove all global locks - Use per-PTE lock bits to allow parallel page insertion - Reconstruct state when requested for evicted PTEs instead of buffering it during overflow
This drops total wall time for make buildworld on a 32-thread POWER8 system by a factor of two and system time by a factor of three, providing performance 20% better than similarly clocked Core i7 Xeons per-core. Performance on smaller SMP systems, where PMAP lock contention was not as much of an issue, is nearly unchanged.
Tested on: POWER8, POWER5+, G5 UP, G5 SMP (64-bit and 32-bit kernels) Merged from: user/nwhitehorn/ppc64-pmap-rework Looked over by: jhibbits, andreast MFC after: 3 months Relnotes: yes Sponsored by: FreeBSD Foundation
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217044 |
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06-Jan-2011 |
nwhitehorn |
Import support for the Sony Playstation 3 using the OtherOS feature available on firmwares 3.15 and earlier.
Caveats: Support for the internal SATA controller is currently missing, as is support for framebuffer resolutions other than 720x480. These deficiencies will be remedied soon.
Special thanks to Peter Grehan for providing the hardware that made this port possible, and thanks to Geoff Levand of Sony Computer Entertainment for advice on the LV1 hypervisor.
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