[PATCHv5 0/6] various memory related fixups

[Randolph Sapp]

On Wed Apr 22, 2026 at 12:09 PM CDT, rs wrote:
> From: Randolph Sapp <rs at ti.com>
>
> Nitpicks and fixes from the discovery thread on adding PocketBeagle2 support
> [1]. This does a lot of general setup required for the device, but these
> modifications themselves aren't device specific. For those specifically
> interested in PocketBeagle2 support and don't care about these details, my
> development branch is public [2].
>
> That second patch may provoke some opinions, but honestly if that warning was
> still present I wouldn't have spent a week poking holes in both the EFI and LMB
> allocations systems. Please let me know if there is a specific usecase that it
> breaks though.
>
> [1] https://lore.kernel.org/all/DHHC66BBMD27.YHGIH43C6XBK@ti.com/
> [2] https://github.com/StaticRocket/u-boot/tree/feature/pocketbeagle2
>
> v2:
> 	- Remove additional increment and decrement in lmb_free_fdt_regions
> 	- Drop the patch to backfill EFI_CONVENTIONAL_MEMORY
> 	- Adjust the removal loop nitpick patch description
> 	- Change the reserve memory patch to use new end_addr_sp
> v3:
> 	- Update lmb flags to use the macro documentation for constants
> 	- Change efi_mem_sort to use list_for_each_entry_safe
> v4:
> 	- Fix typos in LMB allocation flags macro documentation
> 	- Rename end_addr_sp to initial_relocaddr
> 	- Keep the map_sysmem dance in the efi u-boot reservation
> 	- Use the active device tree pointed to by gd->fdt_blob to clean up old
> 	  reservations
> v5:
> 	- Keep return value as long in boot_fdt_reserve_region
> 	- Fix formatting in initial_relocaddr patch
>
>
> Randolph Sapp (6):
>   lmb: allocation flags macro documentation
>   boot_fdt_add_mem_rsv_regions: free old dtb reservations
>   efi_dt_fixup: use fdtdec_get_bool
>   efi_selftest_memory: check for duplicates first
>   efi_mem_sort: use list_for_each_entry_safe instead
>   memory: reserve from start_addr_sp to initial_relocaddr
>
>  arch/mips/lib/bootm.c                  |  2 +-
>  boot/bootm.c                           |  2 +-
>  boot/bootm_os.c                        |  2 +-
>  boot/image-board.c                     |  2 +-
>  boot/image-fdt.c                       | 55 ++++++++++++++++++--------
>  common/board_f.c                       |  9 ++++-
>  include/asm-generic/global_data.h      |  7 ++++
>  include/image.h                        |  2 +-
>  include/lmb.h                          | 30 +++++++++++---
>  lib/efi_loader/efi_dt_fixup.c          |  3 +-
>  lib/efi_loader/efi_memory.c            | 49 ++++++++---------------
>  lib/efi_selftest/efi_selftest_memory.c | 21 +++++-----
>  lib/lmb.c                              | 41 ++++---------------
>  13 files changed, 118 insertions(+), 107 deletions(-)

Any more comments on this series?