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
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
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
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
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
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
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
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
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
arm, mips, and powerpc all implement pmap_mapdev_attr() and pmap_unmapdev(),
so add those archs to the checks. powerpc also includes the atomic_swap_*()
functions, so add that to the supported list as well. Not tested except by
compiling powerpc.
Reviewed by: markj
the LinuxKPI for accessing user-space memory in the kernel.
Add functions to hold and wire physical page(s) based on a given range
of user-space virtual addresses.
Add functions to get and put a reference on, wire, hold, mark
accessed, copy and dirty a physical page.
Add new VM related structures and defines as a preparation step for
advancing the memory map capabilities of the LinuxKPI.
Add function to figure out if a virtual address was allocated using
malloc().
Add function to convert a virtual kernel address into its physical
page pointer.
Obtained from: kmacy @
MFC after: 1 week
Sponsored by: Mellanox Technologies
