diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2019-09-07 22:32:38 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-09-17 14:37:27 -0500 |
| commit | 9dbc88d013b79c62bd845cb9e7c0256e660967c5 (patch) | |
| tree | 35aae5cc7dc725b8b863531a59374c284c43854a /drivers/gpu/drm/radeon/radeon_drv.c | |
| parent | c02d6a161395dfc0c2fdabb9e976a229017288d8 (diff) | |
drm/radeon: Bail earlier when radeon.cik_/si_support=0 is passed
Bail from the pci_driver probe function instead of from the drm_driver
load function.
This avoid /dev/dri/card0 temporarily getting registered and then
unregistered again, sending unwanted add / remove udev events to
userspace.
Specifically this avoids triggering the (userspace) bug fixed by this
plymouth merge-request:
https://gitlab.freedesktop.org/plymouth/plymouth/merge_requests/59
Note that despite that being an userspace bug, not sending unnecessary
udev events is a good idea in general.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1490490
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_drv.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_drv.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 5838162f687f..4267cb55bc33 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -323,8 +323,39 @@ bool radeon_device_is_virtual(void); static int radeon_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { + unsigned long flags = 0; int ret; + if (!ent) + return -ENODEV; /* Avoid NULL-ptr deref in drm_get_pci_dev */ + + flags = ent->driver_data; + + if (!radeon_si_support) { + switch (flags & RADEON_FAMILY_MASK) { + case CHIP_TAHITI: + case CHIP_PITCAIRN: + case CHIP_VERDE: + case CHIP_OLAND: + case CHIP_HAINAN: + dev_info(&pdev->dev, + "SI support disabled by module param\n"); + return -ENODEV; + } + } + if (!radeon_cik_support) { + switch (flags & RADEON_FAMILY_MASK) { + case CHIP_KAVERI: + case CHIP_BONAIRE: + case CHIP_HAWAII: + case CHIP_KABINI: + case CHIP_MULLINS: + dev_info(&pdev->dev, + "CIK support disabled by module param\n"); + return -ENODEV; + } + } + if (vga_switcheroo_client_probe_defer(pdev)) return -EPROBE_DEFER; |