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Author SHA1 Message Date
Hans Petter Selasky
0df8bab666 Define asm macro in the LinuxKPI. 
Submitted by:		Johannes Lundberg <johalun0@gmail.com>
MFC after:		1 week
Sponsored by:		Mellanox Technologies
 2018-11-16 16:23:45 +00:00
Hans Petter Selasky
1799873e3a Implement ktime_get_ts64() function macro in the LinuxKPI. 
Submitted by:		Johannes Lundberg <johalun0@gmail.com>
MFC after:		1 week
Sponsored by:		Mellanox Technologies
 2018-11-16 16:19:16 +00:00
Ben Widawsky
3d40cdf014 linuxkpi: Add GFP flags needed for ttm drivers 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
Requested by:	bwidawsk
MFC after:	3 days
Approved by:	emaste (mentor)
 2018-11-01 15:30:01 +00:00
Hans Petter Selasky
e35079db73 Implement the dump_stack() function in the LinuxKPI. 
Submitted by:		Johannes Lundberg <johalun0@gmail.com>
MFC after:		3 days
Sponsored by:		Mellanox Technologies
 2018-10-30 16:42:56 +00:00
Hans Petter Selasky
bf05cd05ac Implement __KERNEL_DIV_ROUND_UP() function macro in the LinuxKPI. 
Submitted by:		Johannes Lundberg <johalun0@gmail.com>
MFC after:		3 days
Sponsored by:		Mellanox Technologies
 2018-10-30 16:32:52 +00:00
Hans Petter Selasky
8ad9551d36 Implement dma_pool_zalloc() in the LinuxKPI. 
Submitted by:		Johannes Lundberg <johalun0@gmail.com>
MFC after:		3 days
Sponsored by:		Mellanox Technologies
 2018-10-29 19:02:36 +00:00
Tijl Coosemans
642909fdfb Define linuxkpi readq for 64-bit architectures. It is used by drm-kmod. 
Currently the compiler picks up the definition in machine/cpufunc.h.

Add compiler memory barriers to read* and write*.  The Linux x86
implementation of these functions uses inline asm with "memory" clobber.
The Linux x86 implementation of read_relaxed* and write_relaxed* uses the
same inline asm without "memory" clobber.

Implement ioread* and iowrite* in terms of read* and write* so they also
have memory barriers.

Qualify the addr parameter in write* as volatile.

Like Linux, define macros with the same name as the inline functions.

Only define 64-bit versions on 64-bit architectures because generally
32-bit architectures can't do atomic 64-bit loads and stores.

Regroup the functions a bit and add brief comments explaining what they do:
- __raw_read*, __raw_write*: atomic, no barriers, no byte swapping
- read_relaxed*, write_relaxed*: atomic, no barriers, little-endian
- read*, write*: atomic, with barriers, little-endian

Add a comment that says our implementation of ioread* and iowrite*
only handles MMIO and does not support port IO.

Reviewed by:	hselasky
MFC after:	3 days
 2018-10-22 20:55:35 +00:00
Alan Cox
49bfa624ac Eliminate the arena parameter to kmem_free(). Implicitly this corrects an 
error in the function hypercall_memfree(), where the wrong arena was being
passed to kmem_free().

Introduce a per-page flag, VPO_KMEM_EXEC, to mark physical pages that are
mapped in kmem with execute permissions.  Use this flag to determine which
arena the kmem virtual addresses are returned to.

Eliminate UMA_SLAB_KRWX.  The introduction of VPO_KMEM_EXEC makes it
redundant.

Update the nearby comment for UMA_SLAB_KERNEL.

Reviewed by:	kib, markj
Discussed with:	jeff
Approved by:	re (marius)
Differential Revision:	https://reviews.freebsd.org/D16845
 2018-08-25 19:38:08 +00:00
Alan Cox
44d0efb215 Eliminate kmem_alloc_contig()'s unused arena parameter. 
Reviewed by:	hselasky, kib, markj
Discussed with:	jeff
Differential Revision:	https://reviews.freebsd.org/D16799
 2018-08-20 15:57:27 +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
549dcdb34e Implement current_work() function in the LinuxKPI. 
Tested by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-08-06 10:48:20 +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
f698bc4d76 Define __poll_t type in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-08-06 08:35:16 +00:00
Hans Petter Selasky
62baacef3f Implement ktime_add_ms() and ktime_before() in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-08-03 09:02:57 +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
Alan Somers
6040822c4e Make timespecadd(3) and friends public 
The timespecadd(3) family of macros were imported from NetBSD back in
r35029. However, they were initially guarded by #ifdef _KERNEL. In the
meantime, we have grown at least 28 syscalls that use timespecs in some
way, leading many programs both inside and outside of the base system to
redefine those macros. It's better just to make the definitions public.

Our kernel currently defines two-argument versions of timespecadd and
timespecsub.  NetBSD, OpenBSD, and FreeDesktop.org's libbsd, however, define
three-argument versions.  Solaris also defines a three-argument version, but
only in its kernel.  This revision changes our definition to match the
common three-argument version.

Bump _FreeBSD_version due to the breaking KPI change.

Discussed with:	cem, jilles, ian, bde
Differential Revision:	https://reviews.freebsd.org/D14725
 2018-07-30 15:46:40 +00:00
Hans Petter Selasky
986e3bed8b Implement the ip_eth_mc_map() function in the LinuxKPI. 
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-06-12 08:43:49 +00:00
Hans Petter Selasky
35555d474b Implement the kstrtobool() and kstrtobool_from_user() functions 
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 16:26:33 +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
71ee95ddf7 Define ARCH_KMALLOC_MINALIGN in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-07 11:44:11 +00:00
Hans Petter Selasky
d150e15285 Wrap timespec64 into timespec in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-07 11:41:42 +00:00
Hans Petter Selasky
a041e75a34 Move the EXPORT_SYMBOL_XXX() function macros into own header file. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-07 11:34:59 +00:00
Hans Petter Selasky
422d8af4df Implement the dev_pm_set_driver_flags() function macro in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-07 11:29:07 +00:00
Hans Petter Selasky
40ddfc7604 Make some list functions RCU safe in the LinuxKPI. 
While at it rename hlist_add_after() into hlist_add_behind().

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-06 15:49:01 +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
e6e028d01f Implement the __add_wait_queue_entry_tail() 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 15:19:30 +00:00
Hans Petter Selasky
7e95e98db8 Implement the might_sleep_if() 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 15:10:11 +00:00
Hans Petter Selasky
ab98f1e8d8 Rename two structure field members while keeping backwards compatibility in 
the LinuxKPI. Add a comment saying in which Linux version this change was made.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-06 15:06:21 +00:00
Hans Petter Selasky
1b092623b2 Implement the init_wait_entry() 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 14:59:23 +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
9e067b2256 Implement the ktime_compare() and ktime_after() functions 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 13:37:31 +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
Hans Petter Selasky
7a13eeba18 Declare and set the global "system_highpri_wq" workqueue structure pointer 
in the LinuxKPI.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-05 15:49:35 +00:00
Hans Petter Selasky
c6d920309c Implement the INIT_DELAYED_WORK_ONSTACK() function macro in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-05 15:46:16 +00:00
Hans Petter Selasky
7f346854b8 Define the __kernel_size_t type in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-05 15:42:35 +00:00
Hans Petter Selasky
5a1d03bb7c Implement the task_pid_vnr() function macro in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-05 15:40:09 +00:00
Hans Petter Selasky
747d9a8165 Add "access" function pointer to the "vm_operations_struct" structure 
in the LinuxKPI. While at it document when to use the "virtual_address" or
the "address" field in the "vm_fault" structure.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-05 15:37:28 +00:00
Hans Petter Selasky
0d2dce0b78 Implement mul_u32_u32() function in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-05 15:30:36 +00:00
Hans Petter Selasky
f446b7cab4 Implement timer_setup() and from_timer() function macros in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-05 15:20:20 +00:00
Hans Petter Selasky
57a865f808 Implement the __sg_alloc_table_from_pages() function based on the existing 
sg_alloc_table_from_pages() function in the LinuxKPI.

This basically allow segments to have a limit, max_segment.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-01 12:09:07 +00:00
Hans Petter Selasky
6fad8d171a Implement radix_tree_iter_delete() in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-01 11:42:09 +00:00
Hans Petter Selasky
0a85496223 Improve high resolution timer support in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-01 11:33:14 +00:00
Hans Petter Selasky
f03ae7e802 Add more GFP macro definitions in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
Sponsored by:	Limelight Networks
 2018-06-01 11:14:59 +00:00
Hans Petter Selasky
13a5c70b91 Implement support for the PCI_BUS_NUM() function macro in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-05-31 13:17:34 +00:00
Hans Petter Selasky
f1aa567bfe Implement support for the kvmalloc_array() function in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-05-31 13:13:08 +00:00
Hans Petter Selasky
f6d4552417 Correct macroname in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-05-31 12:55:38 +00:00
Hans Petter Selasky
cbea4f294f Define __initconst in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-05-31 12:50:42 +00:00
Hans Petter Selasky
7ce7605ece Implement bitmap_complement() in the LinuxKPI. 
Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-05-31 12:48:24 +00:00
Hans Petter Selasky
69d6653ba4 Implement idr_is_empty() in the LinuxKPI and make idr_remove() API compatible 
with upstream Linux by returning the pointer to the removed element.

Submitted by:	Johannes Lundberg <johalun0@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
 2018-05-31 12:35:21 +00:00