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freebsd-dev/sys/modules/linuxkpi/Makefile

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Start importing the basic OFED linux compatibility layer changes made by dumbbell@ to be able to compile this layer as a dependency module. Clean up some Makefiles and remove the no longer used OFED define. Currently only i386 and amd64 targets are supported. MFC after: 1 month Sponsored by: Mellanox Technologies
2015-01-17 16:36:39 +00:00
# $FreeBSD$
sys/modules: normalize .CURDIR-relative paths to SRCTOP This simplifies make output/logic Tested with: `cd sys/modules; make ALL_MODULES=` on amd64 MFC after: 1 month Sponsored by: Dell EMC Isilon
2017-03-04 10:10:17 +00:00
.PATH: ${SRCTOP}/sys/compat/linuxkpi/common/src
Start importing the basic OFED linux compatibility layer changes made by dumbbell@ to be able to compile this layer as a dependency module. Clean up some Makefiles and remove the no longer used OFED define. Currently only i386 and amd64 targets are supported. MFC after: 1 month Sponsored by: Mellanox Technologies
2015-01-17 16:36:39 +00:00
Rename linuxapi[.ko] into linuxkpi[.ko], to reflect that it is a kernel programming interface module, KPI, to avoid confusion with the existing Linux userspace binary compatibility shims. Bump the FreeBSD_version number. Reviewed by: np @ Suggested by: dumbbell @ Sponsored by: Mellanox Technologies
2015-10-22 09:50:45 +00:00
KMOD= linuxkpi
Sort SRCS. MFC after: 1 week
2017-06-26 21:14:33 +00:00
SRCS= linux_compat.c \
Make the LinuxKPI task struct persistent accross system calls. A set of helper functions have been added to manage the life of the LinuxKPI task struct. When an external system call or task is invoked, a check is made to create the task struct by demand. A thread destructor callback is registered to free the task struct when a thread exits to avoid memory leaks. This change lays the ground for emulating the Linux kernel more closely which is a dependency by the code using the LinuxKPI APIs. Add new dedicated td_lkpi_task field has been added to struct thread instead of abusing td_retval[1]. Fix some header file inclusions to make LINT kernel build properly after this change. Bump the __FreeBSD_version to force a rebuild of all kernel modules. MFC after: 1 week Sponsored by: Mellanox Technologies
2017-02-21 12:43:02 +00:00
linux_current.c \
LinuxKPI: implement devres() framework parts and two examples This code implements a version of the devres framework found working for various iwlwifi use cases and also providing functions for ttm_page_alloc_dma.c from DRM. Part of the framework replicates the consumed KPI, while others are internal helper functions. In addition the simple devm_k*malloc() consumers were implemented and kvasprintf() was enhanced to also work for the devm_kasprintf() case. Addmittingly lkpi_devm_kmalloc_release() could be avoided but for the overall understanding of the code and possible memory tracing it may still be helpful. Further devsres consumer are implemented for iwlwifi but will follow later as the main reason for this change is to sort out overlap with DRM. Sponsored-by: The FreeBSD Foundation Obtained-from: bz_iwlwifi MFC After: 3 days Reviewed-by: hselasky, manu Differential Revision: https://reviews.freebsd.org/D28189
2021-01-28 16:32:43 +00:00
linux_devres.c \
linuxkpi: Add dmi_* function dmi function are used to get smbios values. The DRM subsystem and drivers use it to enabled (or not) quirks. Reviewed by: hselasky Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D26046
2020-10-02 18:28:00 +00:00
linux_dmi.c \
Implement basic support for allocating memory from a specific numa node in the LinuxKPI. Differential Revision: https://reviews.freebsd.org/D29077 Reviewed by: markj@ and kib@ MFC after: 1 week Sponsored by: Mellanox Technologies // NVIDIA Networking
2021-03-05 11:44:06 +00:00
linux_domain.c \
LinuxKPI: add firmware loading support Implement 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 ported or full-linuxkpi-using drivers to a firmware(9) auto-loading name format (.ko file name and image name matching), we quieten firmware(9) and print success or failure (unless the _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 Foundation Sponsored-by: Rubicon Communications, LLC ("Netgate") (firmware(9) nowarn update from D27413) MFC after: 3 days Reviewed by: kib, manu (looked at older versions) Differential Revision: https://reviews.freebsd.org/D27414
2021-01-28 16:05:32 +00:00
linux_firmware.c \
Implement parts of the hrtimer API in the LinuxKPI. Reviewed by: hselasky MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D11359
2017-06-26 16:28:46 +00:00
linux_hrtimer.c \
Sort SRCS. MFC after: 1 week
2017-06-26 21:14:33 +00:00
linux_idr.c \
linux_kmod.c \
Make the LinuxKPI task struct persistent accross system calls. A set of helper functions have been added to manage the life of the LinuxKPI task struct. When an external system call or task is invoked, a check is made to create the task struct by demand. A thread destructor callback is registered to free the task struct when a thread exits to avoid memory leaks. This change lays the ground for emulating the Linux kernel more closely which is a dependency by the code using the LinuxKPI APIs. Add new dedicated td_lkpi_task field has been added to struct thread instead of abusing td_retval[1]. Fix some header file inclusions to make LINT kernel build properly after this change. Bump the __FreeBSD_version to force a rebuild of all kernel modules. MFC after: 1 week Sponsored by: Mellanox Technologies
2017-02-21 12:43:02 +00:00
linux_kthread.c \
Implement support for mutexes with deadlock avoidance in the LinuxKPI. When locking a mutex and deadlock is detected the first mutex lock call that sees the deadlock will return -EDEADLK . MFC after: 1 week Sponsored by: Mellanox Technologies
2017-03-09 18:33:40 +00:00
linux_lock.c \
Optimise unmapped LinuxKPI page allocations. When allocating unmapped pages, take advantage of the direct map on AMD64 to get the virtual address corresponding to a page. Else all pages allocated must be mapped because sometimes the virtual address of a page is requested. Move all page allocation and deallocation code into an own C-file. Add support for GFP_DMA32, GFP_KERNEL, GFP_ATOMIC and __GFP_ZERO allocation flags. Make a clear separation between mapped and unmapped allocations. Obtained from: kmacy @ MFC after: 1 week Sponsored by: Mellanox Technologies
2017-02-22 19:39:54 +00:00
linux_page.c \
Start importing the basic OFED linux compatibility layer changes made by dumbbell@ to be able to compile this layer as a dependency module. Clean up some Makefiles and remove the no longer used OFED define. Currently only i386 and amd64 targets are supported. MFC after: 1 month Sponsored by: Mellanox Technologies
2015-01-17 16:36:39 +00:00
linux_pci.c \
linux_radix.c \
Replace dummy implementation of RCU in the LinuxKPI with one based on the in-kernel concurrency kit's ck_epoch API. Factor RCU hlist_xxx() functions into own rculist.h header file. Obtained from: kmacy @ MFC after: 1 week Sponsored by: Mellanox Technologies
2017-02-21 18:04:21 +00:00
linux_rcu.c \
LinuxKPI: Finalize import of seq_file. seq_file.h and linux_seq_file.c was imported form ports earlier but linux_seq_file.c was never compiled in with the module. With this commit base seq_file will replace ports seq_file and it required a few modifications to not break functionality and build. Reviewed by: hps Approved by: imp (mentor), hps MFC after: 1 week
2019-05-16 21:17:18 +00:00
linux_seq_file.c \
Augment wait queue support in the LinuxKPI. In particular: - Don't evaluate event conditions with a sleepqueue lock held, since such code may attempt to acquire arbitrary locks. - Fix the return value for wait_event_interruptible() in the case that the wait is interrupted by a signal. - Implement wait_on_bit_timeout() and wait_on_atomic_t(). - Implement some functions used to test for pending signals. - Implement a number of wait_event_*() variants and unify the existing implementations. - Unify the mechanism used by wait_event_*() and schedule() to put the calling thread to sleep. This is required to support updated DRM drivers. Thanks to hselasky for finding and fixing a number of bugs in the original revision. Reviewed by: hselasky MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D10986
2017-06-09 19:41:12 +00:00
linux_schedule.c \
linuxkpi: Move shmem related functions in it's own file For drmkpi (D23085) we don't want the Linux struct file as we don't emulate everything. Also the prototypes should be in shmem_fs.h to have 100% compatibility with Linux. Reviewed by: hselasky MFC after: Maybe Differential Revision: https://reviews.freebsd.org/D23764
2020-02-21 09:28:45 +00:00
linux_shmemfs.c \
linuxkpi: Add shrinker support A driver can register a shrinker that will be called when the kernel wants to free some memory. Add support for that in linuxkpi and call the registered shrinkers when the lowmem event is triggered. Reviewed by: bz Differential Revision: https://reviews.freebsd.org/D27728
2020-12-22 18:15:01 +00:00
linux_shrinker.c \
Cleanup the LinuxKPI slab implementation. Put large functions into linux_slab.c instead of declaring them static inline. Add support for more memory allocation wrappers like kmalloc_array() and __vmalloc(). Make sure either the M_WAITOK or the M_NOWAIT flag is set and mask away unused memory allocation flags before calling FreeBSD's malloc() routine. Move kmalloc_node() definition to slab.h where it belongs. Implement support for the SLAB_DESTROY_BY_RCU feature when creating a kmem_cache which basically means kmem_cache memory is freed using call_rcu(). MFC after: 1 week Sponsored by: Mellanox Technologies
2017-03-08 11:09:27 +00:00
linux_slab.c \
Add support for LinuxKPI tasklets. Tasklets are implemented using a taskqueue and a small statemachine on top. The additional statemachine is required to ensure all LinuxKPI tasklets get serialized. FreeBSD taskqueues do not guarantee serialisation of its tasks, except when there is only one worker thread configured. MFC after: 1 week Sponsored by: Mellanox Technologies
2017-02-21 13:23:53 +00:00
linux_tasklet.c \
LinuxKPI workqueue cleanup. This change makes the workqueue implementation behave more like in Linux, both functionality wise and structure wise. All workqueue code has been moved to linux_work.c Add an atomic based statemachine to the work_struct to ensure proper operation. Prior to this change struct_work was directly mapped to a FreeBSD task. When a taskqueue has multiple threads the same task may end up being executed on more than one worker thread simultaneously. This might cause problems with code coming from Linux, which expects serial behaviour, similar to Linux tasklets. Move all global workqueue function names into the linux_xxx domain to avoid symbol name clashes in the future. Implement a few more workqueue related functions and macros. Create two multithreaded taskqueues for the LinuxKPI during module load, one for time-consuming callbacks and one for non-time consuming callbacks. MFC after: 1 week Sponsored by: Mellanox Technologies
2017-03-07 12:09:14 +00:00
linux_usb.c \
Implement extensible arrays API using the existing radix tree implementation in the LinuxKPI. Differential Revision: https://reviews.freebsd.org/D25101 Reviewed by: kib @ MFC after: 1 week Sponsored by: Mellanox Technologies
2020-08-27 10:28:12 +00:00
linux_work.c \
linux_xarray.c
Start importing the basic OFED linux compatibility layer changes made by dumbbell@ to be able to compile this layer as a dependency module. Clean up some Makefiles and remove the no longer used OFED define. Currently only i386 and amd64 targets are supported. MFC after: 1 month Sponsored by: Mellanox Technologies
2015-01-17 16:36:39 +00:00
LinuxKPI: Implement ACPI bits required by drm-kmod in base system It includes: ACPI_HANDLE() implementation. AC and VIDEO ACPI events notification support. Replacement of hand-rolled GPLed _DSM method evaluation helpers with in-base ones. Submitted by: wulf Differential Revision: https://reviews.freebsd.org/D26603
2020-11-09 13:20:14 +00:00
.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "amd64" || \
${MACHINE_CPUARCH} == "i386"
linuxkpi: add kernel_fpu_begin/kernel_fpu_end With newer AMD GPUs (>=Navi,Renoir) there is FPU context usage in the amdgpu driver. The `kernel_fpu_begin/end` implementations in drm did not even allow nested begin-end blocks. Submitted by: Greg V Reviewed By: manu, hselasky Differential Revision: https://reviews.freebsd.org/D28061
2021-01-12 11:02:38 +00:00
SRCS+= opt_acpi.h acpi_if.h linux_acpi.c linux_fpu.c
LinuxKPI: Implement ACPI bits required by drm-kmod in base system It includes: ACPI_HANDLE() implementation. AC and VIDEO ACPI events notification support. Replacement of hand-rolled GPLed _DSM method evaluation helpers with in-base ones. Submitted by: wulf Differential Revision: https://reviews.freebsd.org/D26603
2020-11-09 13:20:14 +00:00
.endif
Introduce LINUXKPI_GENSRCS. Centralize the list of generated files required by linuxkpi consumers, into the common variable. This way, consumers that use the variable are insulated from possible changes in the list. Reviewed by: hselasky, imp Sponsored by: Mellanox Technologies MFC after: 1 week Differential revision: https://reviews.freebsd.org/D24137
2020-03-20 21:06:58 +00:00
SRCS+= ${LINUXKPI_GENSRCS}
Start importing the basic OFED linux compatibility layer changes made by dumbbell@ to be able to compile this layer as a dependency module. Clean up some Makefiles and remove the no longer used OFED define. Currently only i386 and amd64 targets are supported. MFC after: 1 month Sponsored by: Mellanox Technologies
2015-01-17 16:36:39 +00:00
sys/modules: normalize .CURDIR-relative paths to SRCTOP This simplifies make output/logic Tested with: `cd sys/modules; make ALL_MODULES=` on amd64 MFC after: 1 month Sponsored by: Dell EMC Isilon
2017-03-04 10:10:17 +00:00
CFLAGS+= -I${SRCTOP}/sys/compat/linuxkpi/common/include
CFLAGS+= -I${SRCTOP}/sys/contrib/ck/include
Start importing the basic OFED linux compatibility layer changes made by dumbbell@ to be able to compile this layer as a dependency module. Clean up some Makefiles and remove the no longer used OFED define. Currently only i386 and amd64 targets are supported. MFC after: 1 month Sponsored by: Mellanox Technologies
2015-01-17 16:36:39 +00:00
.include <bsd.kmod.mk>
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