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Author SHA1 Message Date
Jean-Sébastien Pédron
11aaefc9ca
linuxkpi: Try to solve headers dependencies 
I'm sure I got it wrong but at least the DRM drivers compile.

Reviewed by:	manu
Approved by:	manu
Differential Revision:	https://reviews.freebsd.org/D38157
 2023-01-30 23:09:52 +01:00
Jean-Sébastien Pédron
9491ea7c68
linuxkpi: Fix atomic_long_sub() overflow 
By (ab)using `atomic_long_add_return()`, `atomic_long_sub()` was making
the atomic long overflow. Indeed the underlying FreeBSD atomic is based
on an unsigned long.

Reviewed by:	manu
Approved by:	manu
Differential Revision:	https://reviews.freebsd.org/D38090
 2023-01-25 22:26:54 +01:00
Val Packett
0b4531511e copyright: chase my name and email change 
Reviewed by:	imp, emaste
Differential Revision:	https://reviews.freebsd.org/D37945
 2023-01-06 15:28:42 -05:00
Jean-Sébastien Pédron
e79a57d4ec linuxkpi: Add cmpxchg64() in <asm/atomic.h> 
Differential Revision:	https://reviews.freebsd.org/D36966
 2022-12-01 14:59:16 +01:00
Jean-Sébastien Pédron
58cf3a69a5
linuxkpi: Define boot_cpu_data.x86_max_cores 
Reviewed by:	manu
Approved by:	manu
Differential Revision:	https://reviews.freebsd.org/D36971
 2022-11-11 18:43:07 +01:00
Emmanuel Vadot
ee247fc1e9 linuxkpi: Move cpu_relax out of ifdef for x86 
It's needed by drm-kmod and this allow building on arm64 and powerpc.

Reported by:	jhibbits
Sponsored by:	Beckhoff Automation GmbH & Co. KG
 2022-11-10 12:50:51 +01:00
Bjoern A. Zeeb
b5c3819c7b LinuxKPI: add virt_to_phys() 
Add virt_to_phys() as a define to vtophys().
This is used by a wireless driver for dma related work; sigh.

MFC after:	3 days
Reviewed by:	emaste
Differential Revision: https://reviews.freebsd.org/D37301
 2022-11-08 18:18:01 +00:00
Ed Maste
9f6097d6a6 linuxkpi: retire now-unused MIPS support 
Reviewed by:	bz, manu
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D37023
 2022-10-17 16:31:20 -04:00
Emmanuel Vadot
b2c860060c linuxkpi: Add asm/processor.h 
Also fill the boot_cpu_data struct as drm needs it.

Reviewed by:	bz
Obtained from:	drm-kmod
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D36107
 2022-08-18 09:46:43 +02:00
Emmanuel Vadot
fd62b3fa1e linuxkpi: pgtable: Add more defines 
Needed by drm-kmod

Reviewed by:	bz
Obtained from:	drm-kmod
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D36101
 2022-08-18 09:46:33 +02:00
Emmanuel Vadot
eca2f0f380 linuxkpi: Add smp_mb__before/after_atomic 
Reviewed by:	hselasky
Obtained from:	drm-kmod
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D36020
 2022-08-08 15:22:35 +02:00
Emmanuel Vadot
39da3678b1 linuxkpi: Add try_cmpxchg and atomic_try_cmpxchg 
Needed by drm-kmod

Obtain from:	drm-kmod
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D36015
 2022-08-08 15:22:35 +02:00
Emmanuel Vadot
6be89cc88d linuxkpi: atomic: Add atomic_fetch_inc 
Reviewed by:	hselasky
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D35936
 2022-08-08 15:22:34 +02:00
Emmanuel Vadot
0e45856f9a linuxkpi: Add asm/set_memory.h 
Provide functions needed for drm-kmod.

MFC after:      1 week
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D35571
 2022-06-29 09:55:23 +02:00
Emmanuel Vadot
137e91dbf6 linuxkpi: Add asm/iosfmbi.h 
Provide dummy functions needed for drm-kmod.

Obtain from:	OpenBSD (via drm-kmod)
MFC after:      1 week
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D35570
 2022-06-29 09:55:19 +02:00
Greg V
8870cb573f LinuxKPI: add asm/neon.h 
This is equivalent to asm/fpu/api.h, but is included by drm on aarch64.

Reviewed by:	bz, imp, hselasky
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D35512
 2022-06-21 19:10:43 +02:00
Emmanuel Vadot
1889bed23d linuxkpi: Add atomic64_fetch_add 
Linux variant of atomic_fetchadd_64.

Reviewed by:	bz
MFC after:	2 weeks
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D34296
 2022-02-17 09:31:39 +01:00
Emmanuel Vadot
4f689b302f linuxkpi: Add user_write_access_* 
Needed by drm-kmod v5.8

Reviewed by:	bz
MFC after:	2 weeks
Sponsored by:	Beckhoff Automation GmbH & Co. KG
Differential Revision:	https://reviews.freebsd.org/D34284
 2022-02-17 09:30:55 +01:00
Bjoern A. Zeeb
2e818fbcfc LinuxKPI: add get_unaligned_le16() 
Add get_unaligned_le16() to asm/unaligned.h needed by a driver.

MFC after:	3 days
Reviewed by:	hselasky
Differential Revision: https://reviews.freebsd.org/D34224
 2022-02-14 00:09:57 +00:00
Vladimir Kondratyev
307f78f3ed LinuxKPI: Constantly use _LINUXKPI_ prefix in include guards 
MFC after:	1 week
Reviewed by:	bz, emaste, hselasky, manu
Differential Revision:	https://reviews.freebsd.org/D33562
 2022-01-10 22:49:38 +03:00
Vladimir Kondratyev
f3ddb82d9a LinuxKPI: Add static_cpu_has() implementation 
static_cpu_has returns true if CPU supports requested feature.

Obtained from:	OpenBSD
MFC after:	1 week
Reviewed by:	hselasky, manu
Differential Revision:	https://reviews.freebsd.org/D33301
 2022-01-10 22:49:38 +03:00
Vladimir Kondratyev
2fb5be7978 LinuxKPI: Implement smp_*mb barriers with atomic_thread_fence_* 
for x86 and move them to asm/barrier.h

MFC after:	1 week
Reviewed by:	bz, hselasky, manu
Differential Revision:	https://reviews.freebsd.org/D33296
 2022-01-10 22:49:37 +03:00
Vladimir Kondratyev
3d86f8f1d7 LinuxKPI: Add dummy pgprot_decrypted() implementation 
to reduce number of #ifdefs in drm-kmod

Reviewed by:	hselasky
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D32094
 2021-09-29 23:14:58 +03:00
Hans Petter Selasky
469884cf04 LinuxKPI: Make FPU sections thread-safe and use the NOCTX flag. 
Reviewed by:	kib
Submitted by:	greg@unrelenting.technology
Differential Revision:	https://reviews.freebsd.org/D29921
MFC after:	1 week
Sponsored by:	NVIDIA Networking
 2021-07-31 15:36:48 +02:00
Bjoern A. Zeeb
5aeeab54b0 LinuxKPI: byteorder.h 
Add a few more le<n>_{tp,add}_cpu*() #defines/functions found in
wireless drivers.  While here fill most of the combinatorics gaps
and also add the remaining combinations [1].

Suggested by:	emaste [1] (for one part)
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Reviewed by:	hselasky
Differential Revision: https://reviews.freebsd.org/D30418
 2021-05-25 18:01:48 +00:00
Bjoern A. Zeeb
3b1ecc9fa1 LinuxKPI: remove < 5.0 version support 
We are not aware of any out-of-tree consumers anymore
which would need KPI support for before Linux version 5.
Update the two in-tree consumers to use the new KPI.
This allows us to remove the extra version check and
will also give access to {lower,upper}_32_bits() unconditionally.

Sponsored-by:	The FreeBSD Foundation
Reviewed-by:	hselasky, rlibby, rstone
MFC-after:	2 weeks
X-MFC:		to 13 only
Differential Revision: https://reviews.freebsd.org/D29391
 2021-03-24 23:00:03 +00:00
Bjoern A. Zeeb
4abbf816bf LinuxKPI: upstream a collection of drm-kmod conflicting changes 
The upcoming in-kernel implementations for LinuxKPI based on work on
iwlwifi (and other wireless drivers) conflicts in a few places with
the drm-kmod graphics work outside the base system.

In order to transition smoothly extract the conflicting bits.
This included "unaligned" accessor functions, sg_pcopy_from_buffer(),
IS_*() macros (to be further restricted in the future), power management
bits (possibly no longer conflicting with DRM), and other minor changes.

Obtained-from:  bz_iwlwifi
Sponsored-by:   The FreeBSD Foundation
MFC after:	3 days
Reviewed by:	kib, hselasky, manu, bdragon (looked at earlier versions)
Differential Revision: https://reviews.freebsd.org/D26598
 2021-01-28 16:15:12 +00:00
Emmanuel Vadot
11d62b6f31 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 12:31:00 +01:00
Hans Petter Selasky
99f20bdc47 Allow LinuxKPI types to be used in bootloaders, by checking for the 
_STANDALONE definition.

No functional change intended.

MFC after:	1 week
Sponsored by:	Mellanox Technologies // NVIDIA Networking
 2020-11-18 13:47:11 +00:00
Mateusz Guzik
1a18003240 compat: clean up empty lines in .c and .h files 2020-09-01 21:24:33 +00:00
Hans Petter Selasky
b9bf16adfb Implement the atomic fetch add unless functions for the LinuxKPI. 
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2020-04-20 16:21:37 +00:00
Johannes Lundberg
62260f68b4 LinuxKPI: Add atomic_long_sub macro. 
Reviewed by:	imp (mentor), hps
Approved by:	imp (mentor), hps
MFC after:	1 week
Differential Revision:	D20718
 2019-06-21 16:43:16 +00:00
Johannes Lundberg
3137d2d4ec LinuxKPI: Update user_access_begin for Linux v5.0. 
Check the new LINUXKPI_VERSION macro for backwards compatibility.
This patch is part of D19565

Reviewed by:	hps
Approved by:	imp (mentor), hps
MFC after:	1 week
 2019-05-15 17:04:12 +00:00
Hans Petter Selasky
ca487c1888 Remove no longer needed ifdefs in the LinuxKPI, after r341787. 
Differential Revision:	https://reviews.freebsd.org/D18450
Reviewed by:		kib@
MFC after:		3 days
Sponsored by:		Mellanox Technologies
 2018-12-10 13:41:33 +00:00
Hans Petter Selasky
6da0d28e6a Fix some build of LinuxKPI on some platforms after r341518. 
MFC after:		1 week
Sponsored by:		Mellanox Technologies
 2018-12-05 15:53:34 +00:00
Hans Petter Selasky
6402bc3d1e Use atomic_fcmpset_XXX() instead of atomic_cmpset_XXX() when possible 
in the LinuxKPI.

Suggested by:	mjg @
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-08-09 09:39:32 +00:00
Marius Strobl
e545f5a8a3 Update the list of architectures having atomic_fcmpset_{8,16,64}(9) and 
atomic_swap_{64,int}(9) respectively as of r337433.
 2018-08-07 18:59:02 +00:00
Hans Petter Selasky
db119089be Implement atomic_long_cmpxchg() function in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-08-06 08:40:02 +00:00
Hans Petter Selasky
a76c73aadc Don't refer to non-existing atomic functions, even though not compiled, 
in the LinuxKPI.

Found by:		rpolka @
MFC after:		1 week
Sponsored by:		Mellanox Technologies
 2018-08-01 19:10:46 +00:00
Hans Petter Selasky
93ed9ab20b Implement the user_access_begin(), user_access_end(), usafe_get_user() and 
unsafe_put_user() function macros in the LinuxKPI.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-11 15:42:29 +00:00
Hans Petter Selasky
17e2a84e9a Rewrite code using atomic_fcmpset_int() in the LinuxKPI. 
Suggested by:	mjg@
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-06 15:31:47 +00:00
Hans Petter Selasky
23dcf4359e Implement the atomic_dec_if_positive() function in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-06 13:59:51 +00:00
Hans Petter Selasky
a16387c1d4 Implement the rdmsrl_safe() function macro in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-06 13:29:52 +00:00
Mark Johnston
e4ba1a50af Fix the definitions of get_cpu() and put_cpu(). 
They are supposed to disable preemption.

Reported by:	rstone
MFC after:	5 days
 2018-04-05 17:26:03 +00:00
Ed Maste
8363051739 linuxkpi whitespace cleanup 
Reviewed by:	hselasky, markj
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D14807
 2018-03-23 15:50:01 +00:00
Hans Petter Selasky
8f294983e9 Optimise xchg() to use atomic_swap_32() and atomic_swap_64(). 
Suggested by:	kib@
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-02-18 18:46:56 +00:00
Hans Petter Selasky
644680491e Fix implementation of xchg() function macro in the LinuxKPI. 
The exchange operation must be atomic.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-02-18 17:37:23 +00:00
Hans Petter Selasky
af4010be77 Compile fix for GCC in the LinuxKPI. 
Older versions of GCC don't allow flexible array members in a union.
Use a zero length array instead.

MFC after:	1 week
Reported by:	jbeich@
Sponsored by:	Mellanox Technologies
 2018-02-17 08:12:35 +00:00
Hans Petter Selasky
2a7c2b914f Allow the cmpxchg() macro in the LinuxKPI to work on pointers without 
generating compiler warnings, -Wint-conversion .

Requested by:	Johannes Lundberg <johalun0@gmail.com>
Sponsored by:	Mellanox Technologies
 2018-02-16 15:20:21 +00:00
Hans Petter Selasky
62bae5d421 The LinuxKPI atomics do not have acquire nor release semantics unless 
specified. Fix code to use READ_ONCE() and WRITE_ONCE() where appropriate.

Suggested by:		kib @
MFC after:		1 week
Sponsored by:		Mellanox Technologies
 2017-09-18 13:37:14 +00:00