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authorLinus Torvalds <torvalds@linux-foundation.org>2026-09-20 08:15:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-09-20 08:15:23 -0700
commitbdab18633a302c82b5e5d5dbc4e38b0baf9c0837 (patch)
tree0446500af9a76d4e8b2a72a0a41391ceede73a10 /drivers/dma-buf/heaps/Kconfig
downloadlinux-stable-bdab18633a302c82b5e5d5dbc4e38b0baf9c0837.tar.gz
linux-stable-bdab18633a302c82b5e5d5dbc4e38b0baf9c0837.zip
Merge tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipgrafted
Pull futex fix from Ingo Molnar: - Also allocate a default private futex hash on vfork() as well, to avoid races with (private) futex waiters (Peter Zijlstra) * tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex: Also allocate private hash on vfork()
Diffstat (limited to 'drivers/dma-buf/heaps/Kconfig')
-rw-r--r--drivers/dma-buf/heaps/Kconfig22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/dma-buf/heaps/Kconfig b/drivers/dma-buf/heaps/Kconfig
new file mode 100644
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+++ b/drivers/dma-buf/heaps/Kconfig
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+config DMABUF_HEAPS_SYSTEM
+ tristate "DMA-BUF System Heap"
+ depends on DMABUF_HEAPS
+ help
+ Choose this option to enable the system dmabuf heap. The system heap
+ is backed by pages from the buddy allocator. If in doubt, say Y.
+
+config DMABUF_HEAPS_SYSTEM_CC_SHARED
+ bool "DMA-BUF System Heap for decrypted CoCo VMs"
+ depends on DMABUF_HEAPS && ARCH_HAS_MEM_ENCRYPT && DMABUF_HEAPS_SYSTEM=y
+ help
+ Choose this option to enable the system_cc_shared dmabuf heap. This
+ allows allocating shared (decrypted) memory for confidential computing
+ (CoCo) VMs.
+
+config DMABUF_HEAPS_CMA
+ tristate "DMA-BUF CMA Heap"
+ depends on DMABUF_HEAPS && DMA_CMA
+ help
+ Choose this option to enable dma-buf CMA heap. This heap is backed
+ by the Contiguous Memory Allocator (CMA). If your system has these
+ regions, you should say Y here.