From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 13 Apr 2026 17:50:05 +0000 (-0500)
Subject: Merge branch 'pci/resource'
X-Git-Tag: v7.1-rc1~151^2~23
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=6cf4941ba9b11c28bbd7c9a7c1a461b94cd486c3;p=thirdparty%2Flinux.git

Merge branch 'pci/resource'

- Prevent assigning space to unimplemented bridge windows; previously we
  mistakenly assumed prefetchable window existed and assigned space and put
  a BAR there (Ahmed Naseef)

- Avoid shrinking bridge windows to fit in the initial Root Port window;
  this fixes one problem with devices with large BARs connected via
  switches, e.g., Thunderbolt (Ilpo Järvinen)

- Retain information about optional resources to make assignment during
  rescan more likely to succeed (Ilpo Järvinen)

- Add __resource_contains_unbound() for use in finding space for resources
  with no address assigned (Ilpo Järvinen)

- Pass full extent of empty space, not just the aligned space, to
  resource_alignf callback so free space before the requested alignment can
  be used (Ilpo Järvinen)

- Remove unnecessary second alignment from ARM, m68k, MIPS (Ilpo Järvinen)

- Place small resources before larger ones for better utilization of
  address space (Ilpo Järvinen)

- Fix alignment calculation for resource size larger than align, e.g.,
  bridge windows larger than the 1MB required alignment (Ilpo Järvinen)

* pci/resource:
  PCI: Fix alignment calculation for resource size larger than align
  PCI: Align head space better
  PCI: Rename window_alignment() to pci_min_window_alignment()
  parisc/PCI: Clean up align handling
  MIPS: PCI: Remove unnecessary second application of align
  m68k/PCI: Remove unnecessary second application of align
  ARM/PCI: Remove unnecessary second application of align
  resource: Rename 'tmp' variable to 'full_avail'
  resource: Pass full extent of empty space to resource_alignf callback
  resource: Add __resource_contains_unbound() for internal contains checks
  PCI: Fix premature removal from realloc_head list during resource assignment
  PCI: Prevent shrinking bridge window from its required size
  PCI: Prevent assignment to unsupported bridge windows
---

6cf4941ba9b11c28bbd7c9a7c1a461b94cd486c3