[Intel-gfx] [PATCH v3 5/9] drm/amdgpu: Implement the is_primary_gpu callback of vga_client_register()

From: Sui Jingfeng [why] The vga_is_firmware_default() function defined in drivers/pci/vgaarb.c is arch-dependent, it's a dummy on non-x86 architectures. This made VGAARB lost an important condition for the arbitration on non-x86 platform. The rules about which GPU is (or should be) the primary

[Intel-gfx] [PATCH v3 5/9] drm/amdgpu: Implement the is_primary_gpu callback of vga_client_register()

From: Sui Jingfeng [why] The vga_is_firmware_default() function defined in drivers/pci/vgaarb.c is arch-dependent, it's a dummy on non-x86 architectures. This made VGAARB lost an important condition for the arbitration on non-x86 platform. The rules about which GPU is (or should be) the primary