Changes in Makefile

a200c8e51cdb4586ad2eb20d2b45ba367f00beaf - linuxkpi: Add eventfd_*()

Mon, 26 May 2025 18:12:40 +0000

linuxkpi: Add eventfd_*()Add and expose the `eventfd_*()` API. This is used byDRM drivers for some time, but the code was commented out so far.Note that Linux uses `struct eventfd_ctx`, but FreeBSD defines `structeventfd`. We define `eventfd_ctx` as a synonym to `eventfd`.Reviewed by: christos, markjSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D50853 List of files: /src/sys/modules/linuxkpi/Makefile

710167623d82664ab4276776aed502ab6f91d8ff - linuxkpi: Implement

Mon, 11 Aug 2025 17:51:59 +0000

linuxkpi: Implement It is a wrapper above a `char *` to track the overall available space inthe buffer as well as the used space. This wrapper does not managememory allocation.The DRM generic code started to use this in Linux 6.10.Reviewed by: bzSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D54488 List of files: /src/sys/modules/linuxkpi/Makefile

d448578b445da95806ef9af996a0db9754daadeb - linuxkpi: Add

Sun, 07 Sep 2025 13:43:11 +0000

linuxkpi: Add The file is copied as is from Linux 6.10 as it dual-licensend under theGPLv2 and BSD 3-clause.The amdgpu DRM driver started to use it in Linux 6.10.Reviewed by: bz, emasteSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D54501 List of files: /src/sys/modules/linuxkpi/Makefile

e3b16f53a6455903a7e814045584fe203d4fff64 - linuxkpi: Add `folio` and `folio_batch` APIs

Sun, 13 Apr 2025 11:23:01 +0000

linuxkpi: Add `folio` and `folio_batch` APIsThey are used by the i915 DRM driver in Linux 6.6 (although this changewas only backported with Linux 6.7 DRM drivers).`struct folio` simply wraps `struct page` for now.`struct folio_batch` is the same as `struct pagevec` but it works with`struct folio` instead of `struct page` directly.Reviewed by: bz, kib, markjSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D48743 List of files: /src/sys/modules/linuxkpi/Makefile

80446fc7b5e5d22e2bac28bc0474dbe2fec83e43 - linuxkpi: Move `struct kobject` code to `linux_kobject.c`

Fri, 08 Dec 2023 17:58:03 +0000

linuxkpi: Move `struct kobject` code to `linux_kobject.c`[Why]`linux_compat.c` is already too long. I will need to add `struct kset`in a follow-up commit, so let's move the existing `struct kobject` codeto its own file.Reviewed by: manuApproved by: manuDifferential Revision: https://reviews.freebsd.org/D43019 List of files: /src/sys/modules/linuxkpi/Makefile

031beb4e239bfce798af17f5fe8dba8bcaf13d99 - sys: Remove $FreeBSD$: one-line sh pattern

Wed, 16 Aug 2023 17:54:58 +0000

sys: Remove $FreeBSD$: one-line sh patternRemove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/ List of files: /src/sys/modules/linuxkpi/Makefile

514fb3872166a361faa81d89909f65913e90b1b2 - LinuxKPI: define LINUXKPI_INCLUDES for module builds as well

Fri, 23 Sep 2022 21:18:45 +0000

LinuxKPI: define LINUXKPI_INCLUDES for module builds as wellWhile for in-kernel we already have LINUXKPI_INCLUDES in kern.pre.mkfor kmod builds we've not had a common define to use leading to variousspellings of include paths.In order for the include list to be expanded more easily in the future,e.g., adding the "dummy" includes (for all) and to harmonize code,duplicate LINUXKPI_INCLUDES to kmod.mk and use it for all module Makefiles.MFC after: 1 weekReviewed by: hselaskyDifferential Revision: https://reviews.freebsd.org/D36683 List of files: /src/sys/modules/linuxkpi/Makefile

f697b9432d9c7aa4c5ab5f5445ef5dc1bd40ce00 - linuxkpi: drm-kmod debugfs support

Tue, 20 Sep 2022 17:41:10 +0000

linuxkpi: drm-kmod debugfs supportThis diff extends LinuxKPI to support simple attribute files in debugfs.These simple attributes are an essential component for compiling drm-kmodwith CONFIG_DEBUG_FS enabled.This will allow for easier graphics driver debugging usingIntel's igt-gpu-tools.Reviewed by: hselaskyDifferential Revision: https://reviews.freebsd.org/D35883Sponsored by: Google, Inc. (GSoC 2022) List of files: /src/sys/modules/linuxkpi/Makefile

fdc1894795efb5c9d97044a724c01d149c569440 - linuxkpi: on i386 only use first_msi_irq if apic is in kernel config

Sat, 01 May 2021 16:01:22 +0000

linuxkpi: on i386 only use first_msi_irq if apic is in kernel config List of files: /src/sys/modules/linuxkpi/Makefile

f5a2e7b0e8483bf51519046fd149a6a31acef6b1 - linuxkpi: fix module build outside of kernel build environment

Thu, 10 Mar 2022 21:31:23 +0000

linuxkpi: fix module build outside of kernel build environmentMFC after: 3 days List of files: /src/sys/modules/linuxkpi/Makefile

1961a14a47437595fb7fcdc20e327440e3eb51e2 - linuxkpi: Add i2c support

Thu, 04 Nov 2021 09:42:37 +0000

linuxkpi: Add i2c supportAdd i2c support to linuxkpi. This is needed by drm-kmod.For every i2c_adapter added by i2c_add_adapter we add a child to thedevice named "lkpi_iic". This child handle the conversion betweenLinux i2c_msgs to FreeBSD iic_msgs.For every i2c_adapter added by i2c_bit_add_bus we add a child to thedevice named "lkpi_iicbb". This child handle the conversion betweenLinux i2c_msgs to FreeBSD iic_msgs.With the help of iic(4), this expose the i2c controller to userspaceallowing a user to query DDC information from a monitor.e.g.: i2c -f /dev/iic0 -a 0x28 -c 128 -d rwill query the standard EDID from the monitor if plugged.The bitbang part (lkpi_iicbb) isn't tested at all for now as I don't havecompatible hardware (all my hardware have native i2c controller).Tested on: Intel (SandyBridge, Skylake, ApolloLake)Tested on: AMD (Picasso, Polaris (amd64 and arm64))MFC after: 1 monthReviewed by: hselaskySponsored by: Beckhoff Automation GmbH & Co. KGDifferential Revision: https://reviews.freebsd.org/D33053 List of files: /src/sys/modules/linuxkpi/Makefile

d105895844848ddba85d686e03e0d14c03ad4eb4 - LinuxKPI: import beginning of a new version of netdevice.h

Sun, 26 Dec 2021 18:29:29 +0000

LinuxKPI: import beginning of a new version of netdevice.hImport a netdevice update complementing the last remaining bits ofthe old ifnet derived implementation. Along add a (for now) taskbased NAPI implementation.This is the minimal set of chnages which are needed for the initialsupport of wireless drivers. The NAPI implementation has an option tostill switch to "direct dispatch" as it had been used by these driversbefore not relying on a deferred context along with some printf tracing.This has been helpful in the last weeks for debugging and will becleaned once we have had broader testing and are sure this is fine as-is.Should we need a more time-sensitive or load-sensitive responsein the future we can always switch to something more sophisticated.Sponsored by: The FreeBSD FoundationMFC after: 3 daysX-Differential Revision: D33075 (abandoned without feedback a while ago) List of files: /src/sys/modules/linuxkpi/Makefile

49ed6e979c3b327ae466a559884802d901aa5792 - LinuxKPI: add a work-in-progress skbuff implementation

Sun, 26 Dec 2021 18:26:26 +0000

LinuxKPI: add a work-in-progress skbuff implementationThis is a work-in-progress implementation of sk_buff compat codeused for wireless drivers only currently.Bring in this version of the code as it has proven to be good enoughto have packets going for a few months.The current implementation has several drawbacks including the needfor us to copy data between sk_buffs and mbufs.Do not rely on the internals of this implementation. They are highlylikely to change as we will improve the integration to FreeBSD mbufs.Sponsored by: The FreeBSD FoundationMFC after: 3 days List of files: /src/sys/modules/linuxkpi/Makefile

5bb3134a8c21cb87b30e135ef168483f0333dabb - Fix some modules to export more used symbols

Sun, 07 Nov 2021 08:42:24 +0000

Fix some modules to export more used symbolsand remove non-present symbols that are now reported by kmod_syms.awk.Reviewed by: emasteSponsored by: The FreeBSD FoundationMFC after: 1 weekDifferential revision: https://reviews.freebsd.org/D32878 List of files: /src/sys/modules/linuxkpi/Makefile

66ea390652d2ede405b43c168157986bd2b52bb9 - LinuxKPI: Remove FreeBSD struct resource from all LKPI headers

Wed, 29 Sep 2021 20:12:36 +0000

LinuxKPI: Remove FreeBSD struct resource from all LKPI headersexcept linux/pci.h to avoid conflicts with Linux version.This allows to #define resource in drm-kmod globally and strip some #ifdef-sReviewed by: hselasky, manuMFC after: 2 weeksDifferential revision: https://reviews.freebsd.org/D31673 List of files: /src/sys/modules/linuxkpi/Makefile

469884cf04a9b92677c7c83e229ca6b8814f8b0a - LinuxKPI: Make FPU sections thread-safe and use the NOCTX flag.

Sat, 31 Jul 2021 13:32:52 +0000

LinuxKPI: Make FPU sections thread-safe and use the NOCTX flag.Reviewed by: kibSubmitted by: greg@unrelenting.technologyDifferential Revision: https://reviews.freebsd.org/D29921MFC after: 1 weekSponsored by: NVIDIA Networking List of files: /src/sys/modules/linuxkpi/Makefile

ebe5cf355dca1d7827a70b99a9d9c4f97f78691d - Implement basic support for allocating memory from a specific numa node

Fri, 05 Mar 2021 11:44:06 +0000

Implement basic support for allocating memory from a specific numa nodein the LinuxKPI.Differential Revision: https://reviews.freebsd.org/D29077Reviewed by: markj@ and kib@MFC after: 1 weekSponsored by: Mellanox Technologies // NVIDIA Networking List of files: /src/sys/modules/linuxkpi/Makefile

fa765ca73e553399ffbad382e579e4c2b4d0fc12 - LinuxKPI: implement devres() framework parts and two examples

Thu, 28 Jan 2021 16:32:43 +0000

LinuxKPI: implement devres() framework parts and two examplesThis code implements a version of the devres framework foundworking for various iwlwifi use cases and also providing functionsfor ttm_page_alloc_dma.c from DRM.Part of the framework replicates the consumed KPI, while othersare internal helper functions.In addition the simple devm_k*malloc() consumers were implementedand kvasprintf() was enhanced to also work for the devm_kasprintf()case.Addmittingly lkpi_devm_kmalloc_release() could be avoided but forthe overall understanding of the code and possible memory tracingit may still be helpful.Further devsres consumer are implemented for iwlwifi but will followlater as the main reason for this change is to sort out overlap withDRM.Sponsored-by: The FreeBSD FoundationObtained-from: bz_iwlwifiMFC After: 3 daysReviewed-by: hselasky, manuDifferential Revision: https://reviews.freebsd.org/D28189 List of files: /src/sys/modules/linuxkpi/Makefile

a6c2507d1baedb183268e31bc6b6f659a9529904 - LinuxKPI: add firmware loading support

Thu, 28 Jan 2021 16:05:32 +0000

LinuxKPI: add firmware loading supportImplement linux firmware KPI compat code.This includes: request_firmware() request_firmware_nowait(),request_firmware_direct(), firmware_request_nowarn(),and release_firmware().Given we will try to map requested names from natively portedor full-linuxkpi-using drivers to a firmware(9) auto-loadingname format (.ko file name and image name matching),we quieten firmware(9) and print success or failure (unlessthe _nowarn() version was called) in the linuxkpi implementation.At the moment we try up-to 4 different naming combinations,with path stripped, original name, and requested name with '/'or '.' replaced.We do not currently defer loading in the "nowait" case.Sponsored-by: The FreeBSD FoundationSponsored-by: Rubicon Communications, LLC ("Netgate") (firmware(9) nowarn update from D27413)MFC after: 3 daysReviewed by: kib, manu (looked at older versions)Differential Revision: https://reviews.freebsd.org/D27414 List of files: /src/sys/modules/linuxkpi/Makefile

11d62b6f31ab4e99df6d0c6c23406b57eaa37f41 - linuxkpi: add kernel_fpu_begin/kernel_fpu_end

Tue, 12 Jan 2021 11:02:38 +0000

linuxkpi: add kernel_fpu_begin/kernel_fpu_endWith newer AMD GPUs (>=Navi,Renoir) there is FPU context usage in theamdgpu driver.The `kernel_fpu_begin/end` implementations in drm did not even allow nestedbegin-end blocks.Submitted by: Greg VReviewed By: manu, hselaskyDifferential Revision: https://reviews.freebsd.org/D28061 List of files: /src/sys/modules/linuxkpi/Makefile