Use pci_rebar_get_max_size() from PCI core to simplify code in amdgpu_device_resize_fb_bar(). Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 01d234cf8156..c4ab503fb5d0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1670,9 +1670,9 @@ int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev) int rbar_size = pci_rebar_bytes_to_size(adev->gmc.real_vram_size); struct pci_bus *root; struct resource *res; + int max_size, r; unsigned int i; u16 cmd; - int r; if (!IS_ENABLED(CONFIG_PHYS_ADDR_T_64BIT)) return 0; @@ -1718,8 +1718,10 @@ int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev) return 0; /* Limit the BAR size to what is available */ - rbar_size = min(fls(pci_rebar_get_possible_sizes(adev->pdev, 0)) - 1, - rbar_size); + max_size = pci_rebar_get_max_size(adev->pdev, 0); + if (max_size < 0) + return 0; + rbar_size = min(max_size, rbar_size); /* Disable memory decoding while we change the BAR addresses and size */ pci_read_config_word(adev->pdev, PCI_COMMAND, &cmd); -- 2.39.5
