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
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
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
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
---
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
---
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
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
---
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
---
v5:
Based on Dmitry's comment, fix the followings
- Rename virtio_panic_buffer to panic
Hi,
On Mon, Feb 3, 2025 at 2:18 AM Dmitry Osipenko
wrote:
>
> Hi,
>
> On 1/30/25 12:05, Ryosuke Yasuoka wrote:
> ...
> > +static int virtio_drm_get_scanout_buffer(struct drm_plane *plane,
> > + struct drm_scanout_buffer *
Virtio gpu supports the drm_panic module, which displays a message to
the screen when a kernel panic occurs. It is supported where it has
vmapped shmem BO.
Signed-off-by: Jocelyn Falempe
Signed-off-by: Ryosuke Yasuoka
---
v7:
- Reject no vmapped shmem BO. Also, insert comment and commit log
On Mon, Feb 10, 2025 at 8:14 PM Jocelyn Falempe wrote:
>
> On 09/02/2025 18:45, Dmitry Osipenko wrote:
> > On 2/6/25 13:42, Ryosuke Yasuoka wrote:
> >> Virtio gpu supports the drm_panic module, which displays a message to
> >> the screen when a kernel panic occurs
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->
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 Wed, Apr 16, 2025 at 4:29 PM Dmitry Osipenko
wrote:
>
> On 4/12/25 16:20, Ryosuke Yasuoka wrote:
> > Pass array of pages of the scanout buffer [1] to shmem BO, allowing
> > drm_panic to work even if the BO is not vmapped.
> >
> > [1] https://lore.kernel.org/all
://lore.kernel.org/lkml/dae5089d-e214-4518-b927-5c4149bab...@suse.de/
Signed-off-by: Ryosuke Yasuoka
---
drivers/gpu/drm/hyperv/hyperv_drm.h | 4 +-
drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 168
2 files changed, 139 insertions(+), 33 deletions(-)
diff --git a
://lore.kernel.org/lkml/dae5089d-e214-4518-b927-5c4149bab...@suse.de/
Acked-by: Javier Martinez Canillas
Signed-off-by: Ryosuke Yasuoka
---
v3:
- Remove hyperv_crtc_helper_atomic_disable
- Use drm_atomic_get_new_plane_state instead of accessing the
plane->state directly
- Iterate and handle e
Pass array of pages of the scanout buffer [1] to shmem BO, allowing
drm_panic to work even if the BO is not vmapped.
[1] https://lore.kernel.org/all/20250407140138.162383-3-jfale...@redhat.com/
Signed-off-by: Jocelyn Falempe
Signed-off-by: Ryosuke Yasuoka
---
drivers/gpu/drm/virtio
://lore.kernel.org/lkml/dae5089d-e214-4518-b927-5c4149bab...@suse.de/
Signed-off-by: Ryosuke Yasuoka
---
v2:
- Remove hyperv_crtc_helper_mode_valid
- Remove hyperv_format_mod_supported
- Call helper_add after {plane,crtc}_init
- Move drm_plane_enable_fb_damage_clips to a place close to plane init
Hi Javier,
On Fri, Apr 25, 2025 at 4:15 PM Javier Martinez Canillas
wrote:
>
> Ryosuke Yasuoka writes:
>
> Hello Ryosuke,
>
> > Drop simple-KMS in favor of regular atomic helpers to make the code more
> > modular. The simple-KMS helper mix up plane and CRTC state
On Fri, Mar 7, 2025 at 4:55 PM Jocelyn Falempe wrote:
>
> On 06/03/2025 16:52, Simona Vetter wrote:
> > On Thu, Mar 06, 2025 at 02:24:51PM +0100, Jocelyn Falempe wrote:
> >> On 06/03/2025 05:52, Matthew Wilcox wrote:
> >>> On Thu, Mar 06, 2025 at 12:25:
Some drivers can use vmap in drm_panic, however, vmap is sleepable and
takes locks. Since drm_panic will vmap in panic handler, atomic_vmap
requests pages with GFP_ATOMIC and maps KVA without locks and sleep.
Signed-off-by: Ryosuke Yasuoka
---
include/linux/vmalloc.h | 2 +
mm/internal.h
virtio drm_panic supports only vmapped shmem BO because there is no
atomic vmap feature. Now atomic_vmap is supported, so drm_panic tries to
vmap addr if it is not mapped.
Signed-off-by: Ryosuke Yasuoka
---
drivers/gpu/drm/drm_gem.c | 51 ++
drivers/gpu/drm
both Gnome and VT
environments, and they work correctly.
Best regards,
Ryosuke
[1] https://patchwork.freedesktop.org/patch/635658/
Ryosuke Yasuoka (2):
vmalloc: Add atomic_vmap
drm/virtio: Use atomic_vmap to work drm_panic in GUI
drivers/gpu/drm/drm_gem.c | 51
dr
The `size` argument in the `qxl_alloc_release_reserved` function is
currently unused and has no effect on the function's logic. So remove
this argument to clean up the code. No functional changes are expected.
Signed-off-by: Ryosuke Yasuoka
---
drivers/gpu/drm/qxl/qxl_display.
Add drm_panic module supports for hyperv drm so that panic screen can be
displayed on panic.
Signed-off-by: Ryosuke Yasuoka
---
drivers/gpu/drm/drm_simple_kms_helper.c | 26 +
drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 42 +
include/drm
On Wed, Apr 2, 2025 at 6:45 PM Thomas Zimmermann wrote:
>
> Hi
>
> Am 02.04.25 um 10:43 schrieb Ryosuke Yasuoka:
> > This patch adds drm_panic support for hyperv-drm driver. This function
> > works but it's still needed to brush up. Let me hear your opinions.
> &
2022.
Ryosuke Yasuoka (1):
drm/hyperv: Add support for drm_panic
drivers/gpu/drm/drm_simple_kms_helper.c | 26 +
drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 42 +
include/drm/drm_simple_kms_helper.h | 22 +++
3 files changed, 90 insertions(+)
/lkml/20250402084351.1545536-1-ryasu...@redhat.com/
Ryosuke Yasuoka (1):
drm/hyperv: Add support for drm_panic
drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 36 +
1 file changed, 36 insertions(+)
base-commit: c06cb85ad1412c6ff34792b028b2f89495761398
--
2.49.0
Add drm_panic module for hyperv drm so that panic screen can be
displayed on panic.
Signed-off-by: Ryosuke Yasuoka
---
drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 36 +
1 file changed, 36 insertions(+)
diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c
b/drivers
On Thu, Jun 19, 2025 at 3:12 PM Jocelyn Falempe wrote:
>
> On 13/06/2025 15:20, Ryosuke Yasuoka wrote:
> > Add drm_panic moudle for bochs drm so that panic screen can be displayed
> > on panic.
>
> Thanks for the patch, it's simple and looks good to me.
>
> Revi
Add drm_panic moudle for bochs drm so that panic screen can be displayed
on panic.
Signed-off-by: Ryosuke Yasuoka
---
drivers/gpu/drm/tiny/bochs.c | 19 +++
1 file changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/tiny/bochs.c b/drivers/gpu/drm/tiny/bochs.c
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