kernel/git/stable/linux.git/drivers/gpu/vga/vgaarb.c, branch master

PCI/VGA: Move vgaarb to drivers/pci

2022-03-10T00:30:46+00:00

The VGA arbiter is really PCI-specific and doesn't depend on any GPU things. Move it to the PCI subsystem. Note that misc_init() must be called before vga_arb_device_init(). These are both subsys_initcalls, so this ordering depends on the link order, which is determined by drivers/Makefile: obj-y += pci/ obj-y += char/ <-- misc_init() obj-y += gpu/ <-- vga_arb_device_init() (before this commit) The drivers/pci/ subsys_initcalls are called *before* misc_init(), so convert vga_arb_device_init() to subsys_initcall_sync(), which is called after *all* subsys_initcalls. Link: https://lore.kernel.org/r/20220224224753.297579-2-helgaas@kernel.org Signed-off-by: Bjorn Helgaas

vgaarb: don't pass a cookie to vga_client_register

2021-07-21T08:29:10+00:00

The VGA arbitration is entirely based on pci_dev structures, so just pass that back to the set_vga_decode callback. Signed-off-by: Christoph Hellwig Link: https://patchwork.freedesktop.org/patch/msgid/20210716061634.2446357-8-hch@lst.de Acked-by: Christian König Signed-off-by: Christian König

vgaarb: remove the unused irq_set_state argument to vga_client_register

2021-07-21T08:29:05+00:00

All callers pass NULL as the irq_set_state argument, so remove it and the ->irq_set_state member in struct vga_device. Signed-off-by: Christoph Hellwig Link: https://patchwork.freedesktop.org/patch/msgid/20210716061634.2446357-7-hch@lst.de Acked-by: Christian König Signed-off-by: Christian König

vgaarb: provide a vga_client_unregister wrapper

2021-07-21T08:29:00+00:00

Add a trivial wrapper for the unregister case that sets all fields to NULL. Signed-off-by: Christoph Hellwig Link: https://patchwork.freedesktop.org/patch/msgid/20210716061634.2446357-6-hch@lst.de Acked-by: Christian König Signed-off-by: Christian König

vgaarb: move the kerneldoc for vga_set_legacy_decoding to vgaarb.c

2021-07-21T08:28:51+00:00

Kerneldoc comments should be at the implementation side, not in the header just declaring the prototype. Signed-off-by: Christoph Hellwig Link: https://patchwork.freedesktop.org/patch/msgid/20210716061634.2446357-4-hch@lst.de Acked-by: Christian König Signed-off-by: Christian König

vgaarb: remove vga_conflicts

2021-07-21T08:28:47+00:00

vga_conflicts only has a single caller and none of the arch overrides mentioned in the comment. Just remove it and the thus dead check in the caller. Signed-off-by: Christoph Hellwig Link: https://patchwork.freedesktop.org/patch/msgid/20210716061634.2446357-3-hch@lst.de Acked-by: Christian König Signed-off-by: Christian König

vgaarb: Use ACPI HID name to find integrated GPU

2021-05-20T18:55:56+00:00

Commit 3d42f1ddc47a ("vgaarb: Keep adding VGA device in queue") assumes the first device is an integrated GPU. However, on AMD platforms an integrated GPU can have higher PCI device number than a discrete GPU. Integrated GPU on ACPI platform generally has _DOD and _DOS method, so use that as predicate to find integrated GPU. If the new strategy doesn't work, fallback to use the first device as boot VGA. Reviewed-by: Alex Deucher Signed-off-by: Kai-Heng Feng Signed-off-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20210519135723.525997-1-kai.heng.feng@canonical.com

vgaarb: mark vga_tryget static

2020-08-01T09:28:17+00:00

This symbols isn't used anywhere outside of vgaarb.c. Signed-off-by: Christoph Hellwig Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200801061713.307434-1-hch@lst.de

drm: move i915_kick_out_vgacon to vgaarb

2019-03-07T09:34:37+00:00

Also rename it to vga_remove_vgacon and add kerneldoc text. Signed-off-by: Gerd Hoffmann Reviewed-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20190301092502.30948-2-kraxel@redhat.com

vgaarb: Keep adding VGA device in queue

2018-10-23T05:23:00+00:00

If failed to find the deivice owning the boot framebuffer, try to use the first VGA device instead of the last one. Usually the 1st device is integrated GPU who owns the boot framebuffer. Signed-off-by: Aaron Ma Acked-by: Alex Deucher Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/1535739600-8842-2-git-send-email-aaron.ma@canonical.com