Remove all codepaths that implement fbdev output directly on GEM
buffers. Always allocate a shadow buffer in system memory and set
up deferred I/O for mmap.
The fbdev code that operated directly on GEM buffers was used by
drivers based on GEM DMA helpers. Those drivers have been migrated
to use
Clean up fbdev and client state if the probe function fails. It
used to leak allocated resources. Also reorder the individual steps
to simplify cleanup.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/drm_fbdev_generic.c | 46 -
1 file changed, 32 insertions(+),
Rename symbols to match the style of other fbdev-emulation source
code. No functional changes.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/drm_fbdev_generic.c | 66 ++---
1 file changed, 33 insertions(+), 33 deletions(-)
diff --git
Export the fb_info release code as drm_fb_helper_release_info(). Will
help with cleaning up failed fbdev probing.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/drm_fb_helper.c | 33 -
include/drm/drm_fb_helper.h | 5 +
2 files changed, 29
Consolidate all handling of CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM by
making the module parameter optional in drm_fb_helper.c.
Without the config option, modules can set smem_start in struct
fb_info for internal usage, but not export if to userspace. The
address can only be exported by enabling the
After adding fbdev-dma and converting drivers, all users of
fbdev-generic require shadow buffering. Make it mandatory and
remove all other codepaths. This change greatly simplifies the
code for generic fbdev emulation. It will work with any driver
that supports GEM's vmap and vunmap.
The change
Remove the flag prefer_shadow_fbdev from struct drm_mode_config.
Drivers set this flag to enable shadow buffering in the generic
fbdev emulation. Such shadow buffering is now mandatory, so the
flag is unused.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/tiny/bochs.c| 1 -
Xuan Zhuo wrote:
> Because headroom is not passed to page_to_skb(), this causes the shinfo
> exceeds the range. Then the frags of shinfo are changed by other process.
>
> [ 157.724634] stack segment: [#1] PREEMPT SMP NOPTI
> [ 157.725358] CPU: 3 PID: 679 Comm: xdp_pass_user_f Tainted: G
Xuan Zhuo wrote:
> build_skb_from_xdp_buff() may return NULL, on this
> scene we need to free the frags of xdp shinfo.
>
> Fixes: fab89bafa95b ("virtio-net: support multi-buffer xdp")
> Signed-off-by: Xuan Zhuo
> ---
> drivers/net/virtio_net.c | 5 -
> 1 file changed, 4 insertions(+), 1
This patch series performs a clean up of the code in virtio_ring and
virtio_pci, modifying it to conform with the Linux kernel coding style
guidance [1]. The modifications ensure the code easy to read and
understand. This small series does few short cleanups in the code.
Patch-1 Allow non power
According to the Virtio Specification, the Queue Size parameter of a
virtqueue corresponds to the maximum number of descriptors in that
queue, and it does not have to be a power of 2 for packed virtqueues.
However, the virtio_pci_modern driver enforced a power of 2 check for
virtqueue sizes, which
Add const to make the read-only pointer parameters clear, similar to
many existing functions.
Use `container_of_const` to implement `to_vvq`, which ensures the
const-ness of read-only parameters and avoids accidental modification
of their members.
Signed-off-by: Feng Liu
Reviewed-by: Jiri Pirko
Remove the inline keyword, according to kernel coding style [1], defining
inline functions is not necessary for samll functions.
It is verified with GCC 12.2.0, the generated code with/without inline
is the same. Additionally tested with kernel pktgen and iperf, and
verified the result, pps of
On Wed, Mar 15, 2023 at 2:06 PM Xuan Zhuo wrote:
>
> On Wed, 15 Mar 2023 12:47:29 +0800, Jason Wang wrote:
> > On Tue, Mar 14, 2023 at 5:17 PM Xuan Zhuo
> > wrote:
> > >
> > > On Tue, 14 Mar 2023 15:57:06 +0800, Jason Wang
> > > wrote:
> > > > On Wed, Mar 8, 2023 at 2:44 PM Xuan Zhuo
> > >
On Thu, 16 Mar 2023 10:49:54 +0800, Jason Wang wrote:
> On Wed, Mar 15, 2023 at 2:06 PM Xuan Zhuo wrote:
> >
> > On Wed, 15 Mar 2023 12:47:29 +0800, Jason Wang wrote:
> > > On Tue, Mar 14, 2023 at 5:17 PM Xuan Zhuo
> > > wrote:
> > > >
> > > > On Tue, 14 Mar 2023 15:57:06 +0800, Jason Wang
On Thu, Mar 16, 2023 at 5:12 AM Fabio M. De Francesco
wrote:
>
> On martedì 14 marzo 2023 04:56:08 CET Jason Wang wrote:
> > On Thu, Mar 2, 2023 at 7:34 PM Stefano Garzarella
> wrote:
> > > kmap_atomic() is deprecated in favor of kmap_local_page().
> >
> > It's better to mention the commit or
On Tue, Feb 28, 2023 at 5:42 PM Xie Yongji wrote:
>
> This introduces set_irq_affinity callback in
> vdpa_config_ops so that vdpa device driver can
> get the interrupt affinity hint from the virtio
> device driver. The interrupt affinity hint would
> be needed by the interrupt affinity spreading
在 2023/2/28 17:41, Xie Yongji 写道:
This introduces set/get_vq_affinity callbacks in
vdpa_config_ops to support interrupt affinity
management for vdpa device drivers.
Signed-off-by: Xie Yongji
Acked-by: Jason Wang
---
drivers/virtio/virtio_vdpa.c | 28
On Wed, 15 Mar 2023 12:47:29 +0800, Jason Wang wrote:
> On Tue, Mar 14, 2023 at 5:17 PM Xuan Zhuo wrote:
> >
> > On Tue, 14 Mar 2023 15:57:06 +0800, Jason Wang wrote:
> > > On Wed, Mar 8, 2023 at 2:44 PM Xuan Zhuo
> > > wrote:
> > > >
> > > > virtio core only supports virtual addresses, dma
On 3/14/2023 7:09 PM, Parav Pandit wrote:
From: Si-Wei Liu
Sent: Tuesday, March 14, 2023 3:29 PM
If user supplied feature bits and device doesn’t support some of the feature
bits -> add command fails.
If user supplied feature bits, than use only the feature bits. Do not OR user
supplied
On Thu, Mar 9, 2023 at 9:31 AM Shannon Nelson wrote:
>
> Find the vDPA management information from the DSC in order to
> advertise it to the vdpa subsystem.
>
> Signed-off-by: Shannon Nelson
> ---
> drivers/vdpa/pds/Makefile| 3 +-
> drivers/vdpa/pds/aux_drv.c | 13
>
On Thu, Mar 9, 2023 at 9:31 AM Shannon Nelson wrote:
>
> The PDS vDPA device has a virtio BAR for describing itself, and
> the pds_vdpa driver needs to access it. Here we copy liberally
> from the existing drivers/virtio/virtio_pci_modern_dev.c as it
> has what we need, but we need to modify it
On Thu, Mar 9, 2023 at 9:31 AM Shannon Nelson wrote:
>
> These are the adminq commands that will be needed for
> setting up and using the vDPA device.
It's better to explain under which case the driver should use adminq,
I see some functions overlap with common configuration capability.
More
On Thu, Mar 9, 2023 at 9:31 AM Shannon Nelson wrote:
>
> Add the documentation and Kconfig entry for pds_vdpa driver.
>
> Signed-off-by: Shannon Nelson
> ---
> .../ethernet/pensando/pds_vdpa.rst| 84 +++
> MAINTAINERS | 4 +
>
On Thu, Mar 9, 2023 at 9:31 AM Shannon Nelson wrote:
>
> This is the vDPA device support, where we advertise that we can
> support the virtio queues and deal with the configuration work
> through the pds_core's adminq.
>
> Signed-off-by: Shannon Nelson
> ---
> drivers/vdpa/pds/aux_drv.c | 15
On Tue, 14 Mar 2023, Niklas Schnelle wrote:
> In a future patch HAS_IOPORT=n will result in inb()/outb() and friends
> not being declared. We thus need to add HAS_IOPORT as dependency for
> those drivers using them. In the bochs driver there is optional MMIO
> support detected at runtime, warn if
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