[PATCH] soc: apple: rtkit: Add a private pointer to apple_rtkit_shmem
From: Asahi Lina <hidden>
Date: 2023-01-21 07:43:24
Also in:
asahi, lkml
Subsystem:
arm/apple machine support, the rest · Maintainers:
Sven Peter, Janne Grunau, Linus Torvalds
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 <redacted> --- 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
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