[PATCH 09/11] video/aperture: Move vga handling to pci function

From: Daniel Vetter
Date: Wed Jan 11 2023 - 10:42:24 EST


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.

Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Cc: Helge Deller <deller@xxxxxx>
Cc: linux-fbdev@xxxxxxxxxxxxxxx
---
drivers/video/aperture.c | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/video/aperture.c b/drivers/video/aperture.c
index 6f351a58f6c6..03f8a5e95238 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);
@@ -344,6 +336,13 @@ int aperture_remove_conflicting_pci_devices(struct pci_dev *pdev, const char *na
if (!primary)
return 0;

+ /*
+ * 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.
--
2.39.0