sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

kmem_malloc/free: Use void * instead of vm_offset_t for kernel pointers.

Reviewed by: kib, markj
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D36549

amd_ecc_inject: return an error instead of ignoring it in tsc_modevent

Sponsored by: Rubicon Communications, LLC ("Netgate")

amd*: clean up empty lines in .c and .h files

Merge ^/head r358269 through r358399.

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly mark

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE. All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by: kib (mentor, blanket)
Commented by: kib, gallatin, melifaro
Differential Revision: https://reviews.freebsd.org/D23718

show more ...

Merge ^/head r357855 through r357920.

ecc_inject: Add Hygon Dhyana support.

Submitted by: Pu Wen <puwen@hygon.cn>
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D23561

Merge ^/head r338298 through r338391.

Eliminate the arena parameter to kmem_free(). Implicitly this corrects an
error in the function hypercall_memfree(), where the wrong arena was being
passed to kmem_free().

Introduce a per-page flag

Eliminate the arena parameter to kmem_free(). Implicitly this corrects an
error in the function hypercall_memfree(), where the wrong arena was being
passed to kmem_free().

Introduce a per-page flag, VPO_KMEM_EXEC, to mark physical pages that are
mapped in kmem with execute permissions. Use this flag to determine which
arena the kmem virtual addresses are returned to.

Eliminate UMA_SLAB_KRWX. The introduction of VPO_KMEM_EXEC makes it
redundant.

Update the nearby comment for UMA_SLAB_KERNEL.

Reviewed by: kib, markj
Discussed with: jeff
Approved by: re (marius)
Differential Revision: https://reviews.freebsd.org/D16845

show more ...

Merge ^/head r338026 through r338297, and resolve conflicts.

Eliminate the unused arena parameter from kmem_alloc_attr().

Reviewed by: kib, markj
Differential Revision: https://reviews.freebsd.org/D16793

add a module that provides support for DRAM ECC error injection on AMD CPUs

I imagine that the module would be useful only to a very limited number
of developers, so that's my excuse for not writing

add a module that provides support for DRAM ECC error injection on AMD CPUs

I imagine that the module would be useful only to a very limited number
of developers, so that's my excuse for not writing any documentation.
On a more serious note, please see DRAM Error Injection section of BKDGs
for families 10h - 16h. E.g. section 2.13.3.1 of BKDG for AMD Family 15h
Models 00h-0Fh Processors.

Many thanks to kib for his suggestions and comments.

Discussed with: kib
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D9824

show more ...