Commit Graph

12 Commits

Author SHA1 Message Date
Bjoern A. Zeeb
8620fe4c10 LinuxKPI: add time_is_after_jiffies() definition
This is used by wireless drivers.  Use the time_after() macro as
done for the "after_eq" version.

Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Reviewed by:	hselasky
Differential Revision: https://reviews.freebsd.org/D30430
2021-05-25 18:01:47 +00:00
Emmanuel Vadot
dfb4ecb38b linuxkpi: Add time_after32 and time_before32
This compare two 32 bits times

Sponsored by: The FreeBSD Foundation
Reviewed by:	kib, hselasky
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D25700
2020-08-04 15:27:32 +00:00
Hans Petter Selasky
77632fc70f Extend the range of the return value from nsecs_to_jiffies64() to support
Mesa's drm_syncobj usage, in the LinuxKPI.

While at it optimise the jiffies conversion functions to avoid repeated
and constant calculations.

Submitted by:	Greg V <greg@unrelenting.technology>
Differential Revision:	https://reviews.freebsd.org/D23846
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2020-02-27 15:21:05 +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
f6800be3ce Use integer type to pass around jiffies and/or ticks values in the
LinuxKPI because in FreeBSD ticks are 32-bit.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2017-08-10 13:05:40 +00:00
Mark Johnston
8d92040b75 Add some functions to jiffies.h.
Also add some checks for overflow to existing functions.

Reviewed by:	hselasky
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D11533
2017-07-13 18:27:22 +00:00
Hans Petter Selasky
249a42207b Implement time_is_after_eq_jiffies() function in the LinuxKPI.
MFC after:		1 week
Sponsored by:		Mellanox Technologies
2017-03-07 15:37:51 +00:00
Hans Petter Selasky
dc0d19dd4a Make sure jiffies value is cast to an integer in the LinuxKPI before
doing millisecond conversion. Under FreeBSD jiffies are 32-bit.

MFC after:		1 week
Sponsored by:		Mellanox Technologies
2017-03-07 15:33:38 +00:00
Hans Petter Selasky
1e3db1de0c 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
Hans Petter Selasky
e320ac1958 Implement nsecs_to_jiffies() in the LinuxKPI and while at it
streamline the rest of the xxx_to_jiffies() functions to have a
constant 64-bit argument and use identical range checks for the
result.

Specifically preserve msecs_to_jiffies(0) returning 0. See r282743 for
further details.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2016-05-13 11:02:02 +00:00
Navdeep Parhar
b03384114d Add wait_event_interruptible_timeout to linuxkpi.
Submitted by:	Krishnamraju Eraparaju @ Chelsio
Reviewed by:	hselasky@
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D5776
2016-03-31 17:11:58 +00:00
Hans Petter Selasky
8d59ecb214 Finish process of moving the LinuxKPI module into the default kernel build.
- Move all files related to the LinuxKPI into sys/compat/linuxkpi and
  its subfolders.
- Update sys/conf/files and some Makefiles to use new file locations.
- Added description of COMPAT_LINUXKPI to sys/conf/NOTES which in turn
  adds the LinuxKPI to all LINT builds.
- The LinuxKPI can be added to the kernel by setting the
  COMPAT_LINUXKPI option. The OFED kernel option no longer builds the
  LinuxKPI into the kernel. This was done to keep the build rules for
  the LinuxKPI in sys/conf/files simple.
- Extend the LinuxKPI module to include support for USB by moving the
  Linux USB compat from usb.ko to linuxkpi.ko.
- Bump the FreeBSD_version.
- A universe kernel build has been done.

Reviewed by:	np @ (cxgb and cxgbe related changes only)
Sponsored by:	Mellanox Technologies
2015-10-29 08:28:39 +00:00