lkml.org 
[lkml]   [2023]   [Jan]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] soc: apple: rtkit: Add a private pointer to apple_rtkit_shmem
Date
This allows downstream consumers to keep track of private data for shmem
mappings. In particular, the Rust abstraction will use this to safely
drop data associated with a mapping when it is unmapped.

Signed-off-by: Asahi Lina <lina@asahilina.net>
---
include/linux/soc/apple/rtkit.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/linux/soc/apple/rtkit.h b/include/linux/soc/apple/rtkit.h
index 62bfa37b5adb..1a9888a1797a 100644
--- a/include/linux/soc/apple/rtkit.h
+++ b/include/linux/soc/apple/rtkit.h
@@ -22,6 +22,7 @@
* @size: Size of the shared memory buffer.
* @iova: Device VA of shared memory buffer.
* @is_mapped: Shared memory buffer is managed by the co-processor.
+ * @private: Private data pointer for the parent driver.
*/

struct apple_rtkit_shmem {
@@ -30,6 +31,7 @@ struct apple_rtkit_shmem {
size_t size;
dma_addr_t iova;
bool is_mapped;
+ void *private;
};

/*
--
2.35.1
\
 
 \ /
  Last update: 2023-03-26 23:51    [W:0.052 / U:0.360 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site