Virtio gpu supports the drm_panic module, which displays a message to
the screen when a kernel panic occurs.
Signed-off-by: Jocelyn Falempe
Signed-off-by: Ryosuke Yasuoka
---
v6:
Based on Dmitry's comment, fix the followings
- Reject external dmabufs backing the GEM object
- Allocate vbuf
On Mon, Dec 2, 2024 at 11:30 PM Dmitry Osipenko
wrote:
>
> On 11/29/24 15:24, Ryosuke Yasuoka wrote:
>
> > + } else {
> > + iosys_map_set_vaddr(&sb->map[0], bo->base.vaddr);
> > + }
> > +
> > + sb->format = plane->
From: Jocelyn Falempe
Virtio gpu supports the drm_panic module, which displays a message to
the screen when a kernel panic occurs.
Signed-off-by: Ryosuke Yasuoka
Signed-off-by: Jocelyn Falempe
---
v5:
Based on Dmitry's comment, fix the followings
- Rename virtio_panic_buffer to panic
From: Jocelyn Falempe
Virtio gpu supports the drm_panic module, which displays a message to
the screen when a kernel panic occurs.
Signed-off-by: Ryosuke Yasuoka
Signed-off-by: Jocelyn Falempe
---
v4:
- As per Dmitry's comment, make virtio_panic_buffer private to
virtio_gpu_device
From: Jocelyn Falempe
Virtio gpu supports the drm_panic module, which displays a message to
the screen when a kernel panic occurs.
Signed-off-by: Ryosuke Yasuoka
Signed-off-by: Jocelyn Falempe
---
v3:
- As per Jocelyn's comment, add a finite timeout 500usec in
virtio_gpu_panic_put_vbuf
From: Jocelyn Falempe
Virtio gpu supports the drm_panic module, which displays a message to
the screen when a kernel panic occurs.
Signed-off-by: Ryosuke Yasuoka
Signed-off-by: Jocelyn Falempe
---
v2:
- Remove unnecessary virtio_gpu_vbuffer_inline
- Remove reclaim_list and just call
From: Jocelyn Falempe
Virtio gpu supports the drm_panic module, which displays a message to
the screen when a kernel panic occurs.
Signed-off-by: Ryosuke Yasuoka
Signed-off-by: Jocelyn Falempe
---
drivers/gpu/drm/virtio/virtgpu_drv.h | 28 +
drivers/gpu/drm/virtio/virtgpu_plane.c
QXL supports the drm_panic module, which displays a message to the
screen when a kernel panic occurs.
Signed-off-by: Ryosuke Yasuoka
---
v4
1. Remove unnecessary () and empty lines
2. Remove unlikely() from qxl_panic_bo_create(). This function is
only called in panic handler and it does not need
QXL supports the drm_panic module, which displays a message to the
screen when a kernel panic occurs.
Signed-off-by: Ryosuke Yasuoka
---
v3
Adjust function's arguments indentation. Discussion v2 patch is in [2]
[2] https://lore.kernel.org/lkml/20240919071230.840994-1-ryasu...@redhat.com/T
QXL supports the drm_panic module, which displays a message to the
screen when a kernel panic occurs.
Signed-off-by: Ryosuke Yasuoka
---
v2
In [1], Jocelyn gives me feedbacks and fix them.
1. Removing qxl_surface_evict(): It takes a mutex and it possibly
causes deadlock in panic handler. As the
QXL supports the drm_panic module, which displays a message to the
screen when a kernel panic occurs.
Signed-off-by: Ryosuke Yasuoka
---
Sorry for sending similar mails again and again. Please ignore the
following my mails. Let me add dri-devel mailing list and Jocelyn who
developped a drm_panic
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