kernel/linux.git/samples/vfio-mdev/mdpy-fb.c, branch v6.12.80Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.802024-07-17T18:24:13+00:00vfio-mdev: add missing MODULE_DESCRIPTION() macros2024-07-17T18:24:13+00:00Jeff Johnsonquic_jjohnson@quicinc.com2024-07-15T19:27:09+00:00urn:sha1:0756bec2e45b206ccb5fc3e8791c08d696dd06f7
Since commit 1fffe7a34c89 ("script: modpost: emit a warning when the
description is missing"), a module without a MODULE_DESCRIPTION() will
result in a warning with make W=1. The following warnings are being
observed in samples/vfio-mdev:
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/vfio-mdev/mtty.o
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/vfio-mdev/mdpy.o
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/vfio-mdev/mdpy-fb.o
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/vfio-mdev/mbochs.o
Add the missing invocations of the MODULE_DESCRIPTION() macro to these
modules. And in the case of mtty.c, remove the now redundant instance
of the MODULE_INFO() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240715-md-vfio-mdev-v2-1-59a4c5e924bc@quicinc.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
vfio-dev/mdpy-fb: Use fbdev I/O helpers2023-08-04T13:54:39+00:00Thomas Zimmermanntzimmermann@suse.de2023-08-03T18:36:12+00:00urn:sha1:e4ef4e5d1e32ce7628b4fc0cbe562d6fb3c8035a
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer
for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions.
Select the correct modules with Kconfig's FB_IOMEM_HELPERS token.
The macro and token set the currently selected values, so there is
no functional change.
v3:
* use _IOMEM_ in commit message
v2:
* updated to use _IOMEM_ tokens
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Cc: Kirti Wankhede <kwankhede@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230803184034.6456-48-tzimmermann@suse.de
vfio-mdev: Remove flag FBINFO_DEFAULT from fbdev sample driver2023-07-24T14:50:38+00:00Thomas Zimmermanntzimmermann@suse.de2023-07-15T18:51:49+00:00urn:sha1:050bb5870724fd8262c0dad3e5b91c9f83d0f290
The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by framebuffer_alloc(). So do not set it.
Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.
v2:
* fix commit message (Miguel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Kirti Wankhede <kwankhede@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-8-tzimmermann@suse.de
Merge drm/drm-next into drm-misc-next2023-01-19T09:56:12+00:00Thomas Zimmermanntzimmermann@suse.de2023-01-19T09:56:12+00:00urn:sha1:6f84981772535e670e4e2df051a672af229b6694
Backmerging into drm-misc-next to get DRM accelerator infrastructure,
which is required by ipuv driver.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
vfio-mdev/mdpy-fb: Do not set struct fb_info.apertures2023-01-13T11:54:27+00:00Thomas Zimmermanntzimmermann@suse.de2022-12-19T16:05:07+00:00urn:sha1:e12fa3544469b761ba72b070190d272e2a644e54
Generic fbdev drivers use the apertures field in struct fb_info to
control ownership of the framebuffer memory and graphics device. Do
not set the values in mdpy-fb.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219160516.23436-10-tzimmermann@suse.de
samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe()2022-12-12T21:10:12+00:00Shang XiaoJingshangxiaojing@huawei.com2022-12-08T01:33:41+00:00urn:sha1:d1f0f50fbbbbca1e3e8157e51934613bf88f6d44
Add missing pci_disable_device() in fail path of mdpy_fb_probe().
Besides, fix missing release functions in mdpy_fb_remove().
Fixes: cacade1946a4 ("sample: vfio mdev display - guest driver")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Link: https://lore.kernel.org/r/20221208013341.3999-1-shangxiaojing@huawei.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
samples: vfio-mdev: fix error handing in mdpy_fb_probe()2021-05-24T19:40:13+00:00Wei Yongjunweiyongjun1@huawei.com2021-05-20T13:36:41+00:00urn:sha1:752774ce7793a1f8baa55aae31f3b4caac49cbe4
Fix to return a negative error code from the framebuffer_alloc() error
handling case instead of 0, also release regions in some error handing
cases.
Fixes: cacade1946a4 ("sample: vfio mdev display - guest driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Message-Id: <20210520133641.1421378-1-weiyongjun1@huawei.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
samples: vfio-mdev: constify fb ops2019-12-10T06:52:15+00:00Jani Nikulajani.nikula@intel.com2019-12-03T16:38:53+00:00urn:sha1:b0077e521c8af7761404ae772a328e5f0bf15094
Now that the fbops member of struct fb_info is const, we can start
making the ops const as well.
v2: fix typo (Christophe de Dinechin)
Cc: Kirti Wankhede <kwankhede@nvidia.com>
Cc: kvm@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ddb10df1316ef585930cda7718643a580f4fe37b.1575390741.git.jani.nikula@intel.com
sample: vfio mdev display - guest driver2018-06-08T16:24:13+00:00Gerd Hoffmannkraxel@redhat.com2018-05-11T15:05:04+00:00urn:sha1:cacade1946a41b38dcdf3defb0f931453587eac9
Guest fbdev driver for CONFIG_SAMPLE_VFIO_MDEV_MDPY.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>