diff options
| author | Simon Glass <sjg@chromium.org> | 2024-09-01 16:26:27 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2024-09-18 13:01:00 -0600 |
| commit | f452e8f092b3e500ac955e44b7a3f1680d62d8f7 (patch) | |
| tree | 19f40f83ee123b09286180db8fb2c2246f0b5893 /arch/sandbox/include/asm/state.h | |
| parent | 505b21b60720f00ef67d880fa7f176cbd207c1c3 (diff) | |
sandbox: Implement reference counting for address mapping
An address may be mapped twice and unmapped twice. Delete the mapping
only when the last user unmaps it.
Fix a missing comment while here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/sandbox/include/asm/state.h')
| -rw-r--r-- | arch/sandbox/include/asm/state.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/sandbox/include/asm/state.h b/arch/sandbox/include/asm/state.h index 6b50473ed41..e7dc01759e8 100644 --- a/arch/sandbox/include/asm/state.h +++ b/arch/sandbox/include/asm/state.h @@ -53,10 +53,13 @@ struct sandbox_wdt_info { * be returned, just as it would for a normal sandbox address. * * @tag: Address tag (a value which U-Boot uses to refer to the address) + * @refcnt: Number of references to this tag * @ptr: Associated pointer for that tag + * @sibling_node: Next node */ struct sandbox_mapmem_entry { ulong tag; + uint refcnt; void *ptr; struct list_head sibling_node; }; |