Commit Graph

14 Commits

Author SHA1 Message Date
Ben Skeggs
b0f84a84ff drm/nouveau: fix bogus GPL-2 license header
The bulk SPDX addition made all these files into GPL-2.0 licensed files.
However the remainder of the project is MIT-licensed, these files
were simply missing the boiler plate and got caught up in the global update.

Fixes: 96ac6d4351 (treewide: Add SPDX license identifier - Kbuild)
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2019-07-19 16:26:51 +10:00
Greg Kroah-Hartman
96ac6d4351 treewide: Add SPDX license identifier - Kbuild
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

      GPL-2.0

Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:32:33 -07:00
Ben Skeggs
a261a20c01 drm/nouveau/fault/gv100-: expose VoltaFaultBufferA
This nvclass exposes the replayable fault buffer, which will be used
by SVM to manage GPU page faults.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2019-02-20 09:00:01 +10:00
Ben Skeggs
13e9572906 drm/nouveau/fault/gp100: expose MaxwellFaultBufferA
This nvclass exposes the replayable fault buffer, which will be used
by SVM to manage GPU page faults.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2019-02-20 09:00:00 +10:00
Ben Skeggs
954f97983c drm/nouveau/fault/tu102: rename implementation from tu104
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2019-02-20 08:59:58 +10:00
Ben Skeggs
17fb2807c6 drm/nouveau/fault/tu104: initial support
New registers.

Currently uncertain how exactly to mask fault buffer interrupts.  This will
likely be corrected at around the same time as the new MC interrupt stuff
has been properly figured out and implemented.

For the moment, it shouldn't matter too much.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-12-11 15:37:54 +10:00
Ben Skeggs
3968d6920b drm/nouveau/fault: add explicit control over fault buffer interrupts
The GPU will continually fire interrupts while a fault buffer GET != PUT,
and to stop the spurious interrupts while the handler does its thing, we
were disabling the fault buffer temporarily.

This is not actually a great idea to begin with, and made worse by Volta
resetting GET/PUT when it's reactivated.  So, let's not do that.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-12-11 15:37:46 +10:00
Ben Skeggs
809724560f drm/nouveau/fault: store get/put pri address in nvkm_fault_buffer
Will allow more shared fault buffer handling code between Pascal/Volta.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-12-11 15:37:46 +10:00
Ben Skeggs
4d326469d9 drm/nouveau/fault: remove manual mapping of fault buffers into BAR2
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-12-11 15:37:46 +10:00
Ben Skeggs
60cda66572 drm/nouveau/fault/gv100: fix fault buffer initialisation
Not sure how this happened, it worked last time I tested it!

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-07-16 18:06:28 +10:00
Ben Skeggs
8b811951c6 drm/nouveau/fault/gv100: initial support
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-05-18 15:01:38 +10:00
Ben Skeggs
d0e9351e42 drm/nouveau/fault/gp100: implement replayable fault buffer initialisation
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-05-18 15:01:20 +10:00
Ben Skeggs
36780d7eee drm/nouveau/fault: add infrastructure to support fault buffers
GPU-specific support will be added separately.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-05-18 15:01:20 +10:00
Ben Skeggs
1ce466894b drm/nouveau/core: define FAULT subdev
This will be responsible for the handling of MMU fault buffers on GPUs
that support them.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2018-05-18 15:01:20 +10:00