src/sys/compat/linuxkpi/common/include/linux/highmem.h, branch stable/14

LinuxKPI: add supporting #includes

2026-04-01T04:33:47+00:00

Compiling drm-kmod on !X86 does not include asm/smp.h which includes
preempt.h on FreeBSD.  In order to compile drm-kmod on other
architectures add the secondary #includes for preempt.h to
spinlock.h and hardirq.h (which now also gets included from highmem.h)
to connect the #include chain.

Sponsored by:	The FreeBSD Foundation
PR:		279864
Reviewed by:	jhibbits, emaste
Differential Revision: https://reviews.freebsd.org/D55974

(cherry picked from commit 1d18872c2519d7ca726ddc49735180ab1d8916e0)
(cherry picked from commit 29dce45d8c50ea5858dc91a4294e83b8d72a2f80)

LinuxKPI: Add header polution to compile linux/numa.h

2024-08-01T21:09:41+00:00

Sponsored by:	Serenity CyberSecurity, LLC
MFC after:	1 week
Reviewed by:	manu, bz, emaste
Differential Revision:	https://reviews.freebsd.org/D45612

(cherry picked from commit d21316ff22b1468304b6db9c336f66a09c4f7be8)

LinuxKPI: Add kmap_local_page function

2024-08-01T21:09:40+00:00

kmap_local_page maps a page for temporary usage

Sponsored by:	Serenity CyberSecurity, LLC
MFC after:	1 week
Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D45609

(cherry picked from commit 73f3589120e61b4b9df1ef60c5be12ccd81878f2)

LinuxKPI: cleanup internal calls to VM_PAGE_TO_PHYS

2023-08-07T00:57:42+00:00

Replace FreeBSD native VM_PAGE_TO_PHYS() calls with page_to_phys()
allowing us to work on a struct page in the future using the one
single public Linux KPI interface to map to a native FreeBSD vm_page.

This should be a NOP.

Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Reviewed by:	markj
Differential Revision: https://reviews.freebsd.org/D41256

LinuxKPI: reduce usage of struct vm_page and vm_page_t

2023-08-07T00:55:30+00:00

We currently define (Linux) page to (FreeBSD) vm_page.
Cleanup some of the direct struct vm_page and vm_page_t declarations
and usages in the Linux KPI and make them 'struct page' or
'struct page *' to prepare for more upcoming work.

This should be a NOP.

Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Reviewed by:	markj
Differential Revision: https://reviews.freebsd.org/D41255

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

2023-05-12T16:44:03+00:00

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix

linuxkpi: Add `kmap_local_page_prot()` and `kunmap_local()`

2023-01-30T22:09:22+00:00

They are synonymous to `kmap_atomic_prot()` and `kunmap_atomic()`
respectively.

While here, fix several style(9) issues.

Reviewed by:	manu
Approved by:	manu
Differential Revision:	https://reviews.freebsd.org/D38155

LinuxKPI: Constantly use _LINUXKPI_ prefix in include guards

2022-01-10T19:49:38+00:00

MFC after:	1 week
Reviewed by:	bz, emaste, hselasky, manu
Differential Revision:	https://reviews.freebsd.org/D33562

LinuxKPI: Import linux_page.c and some dependent code from drm-kmod

2021-09-29T20:15:37+00:00

No functional changes intended

Reviewed by:	hselasky, manu, markj
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D32167