[PATCH v2 01/14] iosys-map: Add IOSYS_MAP_INIT_VADDR_IOMEM()

From: Thomas Zimmermann <tzimmermann@suse.de>
To: sam@ravnborg.org, jose.exposito89@gmail.com, javierm@redhat.com,
	maarten.lankhorst@linux.intel.com, mripard@kernel.org,
	airlied@linux.ie, daniel@ffwll.ch, noralf@tronnes.org,
	drawat.floss@gmail.com, lucas.demarchi@intel.com,
	david@lechnology.com, kraxel@redhat.com
Cc: linux-hyperv@vger.kernel.org,
	Thomas Zimmermann <tzimmermann@suse.de>,
	dri-devel@lists.freedesktop.org,
	virtualization@lists.linux-foundation.org
Subject: [PATCH v2 01/14] iosys-map: Add IOSYS_MAP_INIT_VADDR_IOMEM()
Date: Mon,  8 Aug 2022 14:53:53 +0200	[thread overview]
Message-ID: <20220808125406.20752-2-tzimmermann@suse.de> (raw)
In-Reply-To: <20220808125406.20752-1-tzimmermann@suse.de>

Add IOSYS_MAP_INIT_VADDR_IOMEM() for static init of variables of type
struct iosys_map.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 include/linux/iosys-map.h | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/include/linux/iosys-map.h b/include/linux/iosys-map.h
index a533cae189d7..cb71aa616bd3 100644
--- a/include/linux/iosys-map.h
+++ b/include/linux/iosys-map.h
@@ -46,10 +46,13 @@
  *
  *	iosys_map_set_vaddr(&map, 0xdeadbeaf);
  *
- * To set an address in I/O memory, use iosys_map_set_vaddr_iomem().
+ * To set an address in I/O memory, use IOSYS_MAP_INIT_VADDR_IOMEM() or
+ * iosys_map_set_vaddr_iomem().
  *
  * .. code-block:: c
  *
+ *	struct iosys_map map = IOSYS_MAP_INIT_VADDR_IOMEM(0xdeadbeaf);
+ *
  *	iosys_map_set_vaddr_iomem(&map, 0xdeadbeaf);
  *
  * Instances of struct iosys_map do not have to be cleaned up, but
@@ -121,6 +124,16 @@ struct iosys_map {
 		.is_iomem = false,	\
 	}
 
+/**
+ * IOSYS_MAP_INIT_VADDR_IOMEM - Initializes struct iosys_map to an address in I/O memory
+ * @vaddr_iomem_:	An I/O-memory address
+ */
+#define IOSYS_MAP_INIT_VADDR_IOMEM(vaddr_iomem_)	\
+	{						\
+		.vaddr_iomem = (vaddr_iomem_),		\
+		.is_iomem = true,			\
+	}
+
 /**
  * IOSYS_MAP_INIT_OFFSET - Initializes struct iosys_map from another iosys_map
  * @map_:	The dma-buf mapping structure to copy from
-- 
2.37.1

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