On Thu, Oct 10, 2019 at 6:28 PM Hans de Goede hdegoede@redhat.com wrote:
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 a userspace bug, not sending unnecessary udev events is a good idea in general.
I think even better would be getting rid of the load/unload callbacks, this issue here isn't the only problem with them.
Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch
I guess also cc: stable material? -Daniel
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1490490 Signed-off-by: Hans de Goede hdegoede@redhat.com
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 35 +++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 35 ------------------------- 2 files changed, 35 insertions(+), 35 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 6f8aaf655a9f..2a00a36106b2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -1048,6 +1048,41 @@ static int amdgpu_pci_probe(struct pci_dev *pdev, return -ENODEV; }
+#ifdef CONFIG_DRM_AMDGPU_SI
if (!amdgpu_si_support) {switch (flags & AMD_ASIC_MASK) {case CHIP_TAHITI:case CHIP_PITCAIRN:case CHIP_VERDE:case CHIP_OLAND:case CHIP_HAINAN:dev_info(&pdev->dev,"SI support provided by radeon.\n");dev_info(&pdev->dev,"Use radeon.si_support=0 amdgpu.si_support=1 to override.\n");return -ENODEV;}}+#endif +#ifdef CONFIG_DRM_AMDGPU_CIK
if (!amdgpu_cik_support) {switch (flags & AMD_ASIC_MASK) {case CHIP_KAVERI:case CHIP_BONAIRE:case CHIP_HAWAII:case CHIP_KABINI:case CHIP_MULLINS:dev_info(&pdev->dev,"CIK support provided by radeon.\n");dev_info(&pdev->dev,"Use radeon.cik_support=0 amdgpu.cik_support=1 to override.\n");return -ENODEV;}}+#endif
/* Get rid of things like offb */ ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb"); if (ret)diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index f2c097983f48..d55f5baa83d3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -144,41 +144,6 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags) struct amdgpu_device *adev; int r, acpi_status;
-#ifdef CONFIG_DRM_AMDGPU_SI
if (!amdgpu_si_support) {switch (flags & AMD_ASIC_MASK) {case CHIP_TAHITI:case CHIP_PITCAIRN:case CHIP_VERDE:case CHIP_OLAND:case CHIP_HAINAN:dev_info(dev->dev,"SI support provided by radeon.\n");dev_info(dev->dev,"Use radeon.si_support=0 amdgpu.si_support=1 to override.\n");return -ENODEV;}}-#endif -#ifdef CONFIG_DRM_AMDGPU_CIK
if (!amdgpu_cik_support) {switch (flags & AMD_ASIC_MASK) {case CHIP_KAVERI:case CHIP_BONAIRE:case CHIP_HAWAII:case CHIP_KABINI:case CHIP_MULLINS:dev_info(dev->dev,"CIK support provided by radeon.\n");dev_info(dev->dev,"Use radeon.cik_support=0 amdgpu.cik_support=1 to override.\n");return -ENODEV;}}-#endif
adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL); if (adev == NULL) { return -ENOMEM;-- 2.23.0