linuxkpi: Provide a non-NULL value for THIS_MODULE

THIS_MODULE is used to differentiate modules on Linux. We currently
completely stub out any Linux struct module usage, but THIS_MODULE
is still use

linuxkpi: Provide a non-NULL value for THIS_MODULE

THIS_MODULE is used to differentiate modules on Linux. We currently
completely stub out any Linux struct module usage, but THIS_MODULE
is still used to populate the "owner" fields of various drivers.
Even though we don't actually dereference these "owner" fields they
are still used by drivers to check if devices/dmabufs/etc come
from different modules. For example, during DRM GEM import some
drivers check if the dmabuf's owner matches the dev's owner. If
they match because they are both NULL drivers may incorrectly think
two resources come from the same module.

This adds a general purpose __this_linker_file which will point to
the linker file of the module that uses it. We can then use that
pointer to have a valid value for THIS_MODULE.

Reviewed by: bz, jhb
Differential Revision: https://reviews.freebsd.org/D44306

show more ...

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

LinuxKPI: add MODULE_IMPORT_NS()

Add dummy MODULE_IMPORT_NS() used by an updated iwlwifi.

Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: hselasky
Differential Revision: https:/

LinuxKPI: add MODULE_IMPORT_NS()

Add dummy MODULE_IMPORT_NS() used by an updated iwlwifi.

Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D34349

show more ...

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

modules: increase MAXMODNAME and provide backward compat

With various firmware files used by graphics and wireless drivers
we are exceeding the current 32 character module name (file path
in kldxref

modules: increase MAXMODNAME and provide backward compat

With various firmware files used by graphics and wireless drivers
we are exceeding the current 32 character module name (file path
in kldxref) length.
In order to overcome this issue bump it to the maximum path length
for the next version.
To be able to MFC provide backward compat support for another version
of the struct as the offsets for the second half change due to the
array size increase.

MAXMODNAME being defined to MAXPATHLEN needs param.h to be
included first. With only 7 modules (or LinuxKPI module.h) not
doing that adjust them rather than including param.h in module.h [1].

Reported by: Greg V (greg unrelenting.technology)
Sponsored by: The FreeBSD Foundation
Suggested by: imp [1]
MFC after: 10 days
Reviewed by: imp (and others to different level)
Differential Revision: https://reviews.freebsd.org/D32383

show more ...

LinuxKPI: module.h add MODULE_SUPPORTED_DEVICE()

Add a dummy MODULE_SUPPORTED_DEVICE define as we do for other
MODULE_* macros. This is needed by a wireless driver.

MFC after: 3 days
Differential

LinuxKPI: module.h add MODULE_SUPPORTED_DEVICE()

Add a dummy MODULE_SUPPORTED_DEVICE define as we do for other
MODULE_* macros. This is needed by a wireless driver.

MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D32641

show more ...

LinuxKPI: extract stringify() in their own header file

Add linux/stringify.h as directly included by drivers. Remove the
definitions from compiler.h and include the new header in places
where the s

LinuxKPI: extract stringify() in their own header file

Add linux/stringify.h as directly included by drivers. Remove the
definitions from compiler.h and include the new header in places
where the stringify macros are already used without linuxkpi.

I have adjusted the Copyright of the new file according to the commit
originaly adding the macros (99e690772adbcb78c9e8441bedcf1913d72ea72f).

Sposnored by: The FreeBSD Foundation
MFC after: 2 weeks
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D30440

show more ...

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

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

show more ...

Optimise use of Giant in the LinuxKPI.

- Make sure Giant is locked when calling PCI device methods.
Newbus currently requires this.

- Avoid unlocking Giant right before aquiring the sleepqueue lock

Optimise use of Giant in the LinuxKPI.

- Make sure Giant is locked when calling PCI device methods.
Newbus currently requires this.

- Avoid unlocking Giant right before aquiring the sleepqueue lock.
This can save a task switch.

MFC after: 1 week
Sponsored by: Mellanox Technologies

show more ...

Implement __MODULE_STRING() function macro in the LinuxKPI.

MFC after: 1 week
Submitted by: Johannes Lundberg <johalun0@gmail.com>
Sponsored by: Mellanox Technologies
Sponsored by: Limelight Networks

MFH @ r323558.

MFhead@r322870

Add some miscellaneous definitions to support the DRM drivers.

MFC after: 1 week

MFhead@r320180

Merge ^/head r319973 through 321382.

Merge ^/head r320042 through r320397.

Include kmod.h from the LinuxKPI's module.h.

MFC after: 1 week

Merge ^/head r319165 through r319250.

Add some miscellaneous definitions to support DRM drivers.

Reviewed by: hselasky
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D10985

MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Catch up with head (r291075).

Merge from head r290483

Make all the LinuxKPI include files compile standalone.

Sponsored by: Mellanox Technologies

Merge from head