From: Oleksij Rempel <linux@rempel-privat.de>
To: barebox@lists.infradead.org
Cc: Peter Mamonov <pmamonov@gmail.com>,
Oleksij Rempel <linux@rempel-privat.de>
Subject: [PATCH v3] MIPS: add virt_to_phys() and phys_to_virt()
Date: Fri, 11 Aug 2017 16:26:10 +0200 [thread overview]
Message-ID: <20170811142610.20261-1-linux@rempel-privat.de> (raw)
From: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
---
changes.
v3:
- remove some comments.
v2:
- make use of use CPHYSADDR and CKSEG0ADDR
arch/mips/include/asm/io.h | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index 4bee5913a..5a4cbf564 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -12,11 +12,36 @@
#include <linux/compiler.h>
#include <asm/types.h>
+#include <asm/addrspace.h>
#include <asm/byteorder.h>
void dma_flush_range(unsigned long, unsigned long);
void dma_inv_range(unsigned long, unsigned long);
+/*
+ * virt_to_phys - map virtual addresses to physical
+ * @address: address to remap
+ *
+ * The returned physical address is the physical (CPU) mapping for
+ * the memory address given.
+ */
+static inline unsigned long virt_to_phys(const void *address)
+{
+ return (unsigned long)CPHYSADDR(address);
+}
+
+/*
+ * phys_to_virt - map physical address to virtual
+ * @address: address to remap
+ *
+ * The returned virtual address is a current CPU mapping for
+ * the memory address given.
+ */
+static inline void *phys_to_virt(unsigned long address)
+{
+ return (void *)CKSEG0ADDR(address);
+}
+
#define IO_SPACE_LIMIT 0
/*****************************************************************************/
--
2.11.0
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
reply other threads:[~2017-08-11 14:26 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170811142610.20261-1-linux@rempel-privat.de \
--to=linux@rempel-privat.de \
--cc=barebox@lists.infradead.org \
--cc=pmamonov@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox