| Message ID | 20230404201842.567344-5-daniel.vetter@ffwll.ch (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/8] drm/gma500: Use drm_aperture_remove_conflicting_pci_framebuffers | expand |
Daniel Vetter <daniel.vetter@ffwll.ch> writes: > A few reasons for this: > > - It's really the only one where this matters. I tried looking around, > and I didn't find any non-pci vga-compatible controllers for x86 > (since that's the only platform where we had this until a few > patches ago), where a driver participating in the aperture claim > dance would interfere. > > - I also don't expect that any future bus anytime soon will > not just look like pci towards the OS, that's been the case for like > 25+ years by now for practically everything (even non non-x86). > > - Also it's a bit funny if we have one part of the vga removal in the > pci function, and the other in the generic one. > > v2: Rebase. > > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> > Cc: Thomas Zimmermann <tzimmermann@suse.de> > Cc: Javier Martinez Canillas <javierm@redhat.com> > Cc: Helge Deller <deller@gmx.de> > Cc: linux-fbdev@vger.kernel.org > --- > drivers/video/aperture.c | 15 +++++++-------- > 1 file changed, 7 insertions(+), 8 deletions(-) Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
diff --git a/drivers/video/aperture.c b/drivers/video/aperture.c index 552cffdb827b..ec9387d94049 100644 --- a/drivers/video/aperture.c +++ b/drivers/video/aperture.c @@ -298,14 +298,6 @@ int aperture_remove_conflicting_devices(resource_size_t base, resource_size_t si aperture_detach_devices(base, size); - /* - * If this is the primary adapter, there could be a VGA device - * that consumes the VGA framebuffer I/O range. Remove this device - * as well. - */ - if (primary) - aperture_detach_devices(VGA_FB_PHYS_BASE, VGA_FB_PHYS_SIZE); - return 0; } EXPORT_SYMBOL(aperture_remove_conflicting_devices); @@ -342,6 +334,13 @@ int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *na } if (primary) { + /* + * If this is the primary adapter, there could be a VGA device + * that consumes the VGA framebuffer I/O range. Remove this + * device as well. + */ + aperture_detach_devices(VGA_FB_PHYS_BASE, VGA_FB_PHYS_SIZE); + /* * WARNING: Apparently we must kick fbdev drivers before vgacon, * otherwise the vga fbdev driver falls over.
A few reasons for this: - It's really the only one where this matters. I tried looking around, and I didn't find any non-pci vga-compatible controllers for x86 (since that's the only platform where we had this until a few patches ago), where a driver participating in the aperture claim dance would interfere. - I also don't expect that any future bus anytime soon will not just look like pci towards the OS, that's been the case for like 25+ years by now for practically everything (even non non-x86). - Also it's a bit funny if we have one part of the vga removal in the pci function, and the other in the generic one. v2: Rebase. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Javier Martinez Canillas <javierm@redhat.com> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org --- drivers/video/aperture.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-)