From 1a3c05b32bf06f3440ddd8a6fef97e628f14aaec Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ilpo=20J=C3=A4rvinen?= Date: Thu, 13 Nov 2025 18:26:25 +0200 Subject: [PATCH] drm/xe: Remove driver side BAR release before resize MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit PCI core handles releasing device's resources and their rollback in case of failure of a BAR resizing operation. Releasing resource prior to calling pci_resize_resource() prevents PCI core from restoring the BARs as they were. Remove driver-side release of BARs from the xe driver. Signed-off-by: Ilpo Järvinen Signed-off-by: Bjorn Helgaas Reviewed-by: Lucas De Marchi Link: https://patch.msgid.link/20251113162628.5946-9-ilpo.jarvinen@linux.intel.com --- drivers/gpu/drm/xe/xe_vram.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_vram.c b/drivers/gpu/drm/xe/xe_vram.c index 00dd027057df..5aacab9358a4 100644 --- a/drivers/gpu/drm/xe/xe_vram.c +++ b/drivers/gpu/drm/xe/xe_vram.c @@ -33,9 +33,6 @@ _resize_bar(struct xe_device *xe, int resno, resource_size_t size) int bar_size = pci_rebar_bytes_to_size(size); int ret; - if (pci_resource_len(pdev, resno)) - pci_release_resource(pdev, resno); - ret = pci_resize_resource(pdev, resno, bar_size, 0); if (ret) { drm_info(&xe->drm, "Failed to resize BAR%d to %dM (%pe). Consider enabling 'Resizable BAR' support in your BIOS\n", -- 2.47.3