drm/vmwgfx: Implement MSI/MSI-X support for IRQs

Browse source

SVGAv3 deprecates legacy interrupts and adds support for MSI/MSI-X. With
MSI the driver visible side remains largely unchanged but with MSI-X
each interrupt gets delivered on its own vector.

Add support for MSI/MSI-X while preserving the old functionality for
SVGAv2. Code between the SVGAv2 and SVGAv3 is exactly the same, only
the number of available vectors changes, in particular between legacy
and MSI-X interrupts.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220307162412.1183049-1-zack@kde.org

...

This commit is contained in:

Zack Rusin 2022-03-07 11:24:12 -05:00

parent 5405d25b9e

commit 32160e6a98

3 changed files with 58 additions and 8 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

2

drivers/gpu/drm/vmwgfx/vmwgfx_drv.c

View file

9

drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

View file

55

drivers/gpu/drm/vmwgfx/vmwgfx_irq.c

View file