From: Tina Zhang
Gvt-g emulates and injects the vGPU's display interrupts in kernel
space. However the dma-buf based framebuffer consumer in the user
land (e.g. Qemu vfio/display) may also need to be notified by this
event.
Register the display irq as VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ to
each vGP
plane updates and
corresponding cursor plane flip interrupts reporting.
Signed-off-by: Kechen Lu
---
drivers/gpu/drm/i915/gvt/display.c | 11 +++
drivers/gpu/drm/i915/gvt/handlers.c | 27 ---
drivers/gpu/drm/i915/gvt/interrupt.c | 7 +++
drivers/gpu/drm
check bitset.
Signed-off-by: Kechen Lu
---
drivers/gpu/drm/i915/gvt/cmd_parser.c | 5 +++--
drivers/gpu/drm/i915/gvt/display.c| 12
drivers/gpu/drm/i915/gvt/gvt.h| 2 ++
drivers/gpu/drm/i915/gvt/handlers.c | 5 +++--
4 files changed, 20 insertions(+), 4 deletions
eventfd and
8 byte eventfd counter partition are leveraged.
Signed-off-by: Tina Zhang
Signed-off-by: Kechen Lu
---
drivers/gpu/drm/i915/gvt/display.c | 21
drivers/gpu/drm/i915/gvt/gvt.h | 7 ++
drivers/gpu/drm/i915/gvt/kvmgt.c | 154 +++--
3 files changed
From: Tina Zhang
Introduce vGPU specific irq type VFIO_IRQ_TYPE_GFX, and
VFIO_IRQ_SUBTYPE_GFX_DISPLAY_IRQ as the subtype for vGPU display
Signed-off-by: Tina Zhang
---
include/uapi/linux/vfio.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linu
From: Tina Zhang
Cap the number of irqs with fixed indexes and use capability chains
to chain device specific irqs.
Signed-off-by: Tina Zhang
Signed-off-by: Eric Auger
---
include/uapi/linux/vfio.h | 19 ++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/include
e VFIO irq chain to get eventfds from userspace instead of adding
a new ABI. (Alex)
v1:
- https://patchwork.kernel.org/cover/10962341/
Kechen Lu (2):
drm/i915/gvt: Deliver async primary plane page flip events at vblank
drm/i915/gvt: Add cursor plane reg update trap emulation handler
Tina Zhang (
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