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authorChristoph Hellwig <hch@lst.de>2022-02-28 14:36:57 +0300
committerChristoph Hellwig <hch@lst.de>2022-04-18 08:21:12 +0300
commit8ba2ed1be90fc210126f68186564707478552c95 (patch)
tree60e45049a4f38cc20ca83bc77af9495ddc9944f0 /arch/powerpc/include/asm/swiotlb.h
parentc6af2aa9ffc9763826607bc2664ef3ea4475ed18 (diff)
downloadlinux-8ba2ed1be90fc210126f68186564707478552c95.tar.xz
swiotlb: add a SWIOTLB_ANY flag to lift the low memory restriction
Power SVM wants to allocate a swiotlb buffer that is not restricted to low memory for the trusted hypervisor scheme. Consolidate the support for this into the swiotlb_init interface by adding a new flag. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'arch/powerpc/include/asm/swiotlb.h')
-rw-r--r--arch/powerpc/include/asm/swiotlb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/swiotlb.h b/arch/powerpc/include/asm/swiotlb.h
index 3c1a1cd16128..4203b5e0a88e 100644
--- a/arch/powerpc/include/asm/swiotlb.h
+++ b/arch/powerpc/include/asm/swiotlb.h
@@ -9,6 +9,7 @@
#include <linux/swiotlb.h>
extern unsigned int ppc_swiotlb_enable;
+extern unsigned int ppc_swiotlb_flags;
#ifdef CONFIG_SWIOTLB
void swiotlb_detect_4g(void);