From: Stefano Stabellini <sstabellini@kernel.org>
To: xen-devel@lists.xenproject.org
Cc: sstabellini@kernel.org, boris.ostrovsky@oracle.com,
jgross@suse.com, hch@lst.de,
Stefano Stabellini <stefano.stabellini@xilinx.com>
Subject: [PATCH v2 1/3] xen/arm: move xen_swiotlb_detect to arm/swiotlb-xen.h
Date: Wed, 12 May 2021 13:18:21 -0700 [thread overview]
Message-ID: <20210512201823.1963-1-sstabellini@kernel.org> (raw)
In-Reply-To: <alpine.DEB.2.21.2105121313060.5018@sstabellini-ThinkPad-T480s>
From: Stefano Stabellini <stefano.stabellini@xilinx.com>
Move xen_swiotlb_detect to a static inline function to make it available
to !CONFIG_XEN builds.
CC: boris.ostrovsky@oracle.com
CC: jgross@suse.com
Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
---
Changes in v2:
- patch split
---
arch/arm/xen/mm.c | 12 ------------
include/xen/arm/swiotlb-xen.h | 15 ++++++++++++++-
2 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index f8f07469d259..223b1151fd7d 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -135,18 +135,6 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
return;
}
-int xen_swiotlb_detect(void)
-{
- if (!xen_domain())
- return 0;
- if (xen_feature(XENFEAT_direct_mapped))
- return 1;
- /* legacy case */
- if (!xen_feature(XENFEAT_not_direct_mapped) && xen_initial_domain())
- return 1;
- return 0;
-}
-
static int __init xen_mm_init(void)
{
struct gnttab_cache_flush cflush;
diff --git a/include/xen/arm/swiotlb-xen.h b/include/xen/arm/swiotlb-xen.h
index 2994fe6031a0..33336ab58afc 100644
--- a/include/xen/arm/swiotlb-xen.h
+++ b/include/xen/arm/swiotlb-xen.h
@@ -2,6 +2,19 @@
#ifndef _ASM_ARM_SWIOTLB_XEN_H
#define _ASM_ARM_SWIOTLB_XEN_H
-extern int xen_swiotlb_detect(void);
+#include <xen/features.h>
+#include <xen/xen.h>
+
+static inline int xen_swiotlb_detect(void)
+{
+ if (!xen_domain())
+ return 0;
+ if (xen_feature(XENFEAT_direct_mapped))
+ return 1;
+ /* legacy case */
+ if (!xen_feature(XENFEAT_not_direct_mapped) && xen_initial_domain())
+ return 1;
+ return 0;
+}
#endif /* _ASM_ARM_SWIOTLB_XEN_H */
--
2.17.1
next prev parent reply other threads:[~2021-05-12 20:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-12 20:18 [PATCH v2 0/3] swiotlb-xen init fixes Stefano Stabellini
2021-05-12 20:18 ` Stefano Stabellini [this message]
2021-05-13 6:10 ` [PATCH v2 1/3] xen/arm: move xen_swiotlb_detect to arm/swiotlb-xen.h Christoph Hellwig
2021-05-14 9:59 ` Juergen Gross
2021-05-12 20:18 ` [PATCH v2 2/3] arm64: do not set SWIOTLB_NO_FORCE when swiotlb is required Stefano Stabellini
2021-05-14 10:00 ` Juergen Gross
2021-05-14 10:29 ` Catalin Marinas
2021-05-12 20:18 ` [PATCH v2 3/3] xen/swiotlb: check if the swiotlb has already been initialized Stefano Stabellini
2021-05-13 6:11 ` Christoph Hellwig
2021-05-14 13:56 ` [PATCH v2 0/3] swiotlb-xen init fixes Juergen Gross
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