| #
29363fb4 |
| 23-Nov-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove ancient SCCS tags.
Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl s
sys: Remove ancient SCCS tags.
Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.
Sponsored by: Netflix
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Revision tags: release/14.0.0 |
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| #
2ff63af9 |
| 16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: one-line .h pattern
Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/
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Revision tags: release/13.2.0, release/12.4.0, release/13.1.0, release/12.3.0, release/13.0.0, release/12.2.0, release/11.4.0, release/12.1.0, release/11.3.0 |
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| #
2aaf9152 |
| 18-Mar-2019 |
Alan Somers <asomers@FreeBSD.org> |
MFHead@r345275
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| #
b18a4cca |
| 05-Mar-2019 |
Enji Cooper <ngie@FreeBSD.org> |
MFhead@r344786
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| #
844fc3e9 |
| 04-Mar-2019 |
Dimitry Andric <dim@FreeBSD.org> |
Merge ^/head r344549 through r344775.
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| #
d5f2c1e4 |
| 26-Feb-2019 |
Konstantin Belousov <kib@FreeBSD.org> |
i386 PAE: avoid atomic for pte_store() where possible.
Instead carefully write upper word, and only than the lower word with
PG_V, for previously invalid ptes. It provides some measurable system
ti
i386 PAE: avoid atomic for pte_store() where possible.
Instead carefully write upper word, and only than the lower word with
PG_V, for previously invalid ptes. It provides some measurable system
time saving on buildworld.
Reviewed by: markj
Tested by: pho
Measured by: bde (early version)
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D19226
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| #
7e565c55 |
| 30-Jan-2019 |
Dimitry Andric <dim@FreeBSD.org> |
Merge ^/head r343320 through r343570.
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| #
9a527560 |
| 30-Jan-2019 |
Konstantin Belousov <kib@FreeBSD.org> |
i386: Merge PAE and non-PAE pmaps into same kernel.
Effectively all i386 kernels now have two pmaps compiled in: one
managing PAE pagetables, and another non-PAE. The implementation is
selected at c
i386: Merge PAE and non-PAE pmaps into same kernel.
Effectively all i386 kernels now have two pmaps compiled in: one
managing PAE pagetables, and another non-PAE. The implementation is
selected at cold time depending on the CPU features. The vm_paddr_t is
always 64bit now. As result, nx bit can be used on all capable CPUs.
Option PAE only affects the bus_addr_t: it is still 32bit for non-PAE
configs, for drivers compatibility. Kernel layout, esp. max kernel
address, low memory PDEs and max user address (same as trampoline
start) are now same for PAE and for non-PAE regardless of the type of
page tables used.
Non-PAE kernel (when using PAE pagetables) can handle physical memory
up to 24G now, larger memory requires re-tuning the KVA consumers and
instead the code caps the maximum at 24G. Unfortunately, a lot of
drivers do not use busdma(9) properly so by default even 4G barrier is
not easy. There are two tunables added: hw.above4g_allow and
hw.above24g_allow, the first one is kept enabled for now to evaluate
the status on HEAD, second is only for dev use.
i386 now creates three freelists if there is any memory above 4G, to
allow proper bounce pages allocation. Also, VM_KMEM_SIZE_SCALE changed
from 3 to 1.
The PAE_TABLES kernel config option is retired.
In collaboarion with: pho
Discussed with: emaste
Reviewed by: markj
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D18894
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