From: Thierry Reding <thierry.reding@gmail.com>
To: Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
Fengguang Wu <fengguang.wu@intel.com>
Cc: Russell King <linux@arm.linux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Stephen Boyd <sboyd@codeaurora.org>,
Sam Ravnborg <sam@ravnborg.org>,
linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org,
linux-s390@vger.kernel.org, sparclinux@vger.kernel.org,
x86@kernel.org, linux-serial@vger.kernel.org,
linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 4/9] [IA64] Change xlate_dev_{kmem,mem}_ptr() prototypes
Date: Mon, 6 Oct 2014 15:52:36 +0200 [thread overview]
Message-ID: <1412603561-27653-5-git-send-email-thierry.reding@gmail.com> (raw)
In-Reply-To: <1412603561-27653-1-git-send-email-thierry.reding@gmail.com>
From: Thierry Reding <treding@nvidia.com>
xlate_dev_mem_ptr() is used to convert a physical address to an uncached
kernel virtual address mapping, so make it use phys_addr_t as type for
the physical address and return void * for the kernel virtual address.
xlate_dev_kmem_ptr() converts a cached kernel virtual address mapping to
an uncached kernel virtual address mapping, so make it use void * for
both the input parameter and return value.
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
arch/ia64/include/asm/uaccess.h | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index 449c8c0fa2bd..103bedc59644 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -365,15 +365,15 @@ ia64_done_with_exception (struct pt_regs *regs)
}
#define ARCH_HAS_TRANSLATE_MEM_PTR 1
-static __inline__ char *
-xlate_dev_mem_ptr (unsigned long p)
+static __inline__ void *
+xlate_dev_mem_ptr(phys_addr_t p)
{
struct page *page;
- char * ptr;
+ void *ptr;
page = pfn_to_page(p >> PAGE_SHIFT);
if (PageUncached(page))
- ptr = (char *)p + __IA64_UNCACHED_OFFSET;
+ ptr = (void *)p + __IA64_UNCACHED_OFFSET;
else
ptr = __va(p);
@@ -383,15 +383,15 @@ xlate_dev_mem_ptr (unsigned long p)
/*
* Convert a virtual cached kernel memory pointer to an uncached pointer
*/
-static __inline__ char *
-xlate_dev_kmem_ptr (char * p)
+static __inline__ void *
+xlate_dev_kmem_ptr(void *p)
{
struct page *page;
- char * ptr;
+ void *ptr;
page = virt_to_page((unsigned long)p);
if (PageUncached(page))
- ptr = (char *)__pa(p) + __IA64_UNCACHED_OFFSET;
+ ptr = (void *)__pa(p) + __IA64_UNCACHED_OFFSET;
else
ptr = p;
--
2.1.0
next prev parent reply other threads:[~2014-10-06 13:52 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-06 13:52 [PATCH v5 0/9] asm-generic/io.h overhaul Thierry Reding
2014-10-06 13:52 ` [PATCH 1/9] ARC: Remove redundant PCI_IOBASE declaration Thierry Reding
2014-10-06 13:52 ` Thierry Reding
2014-10-06 13:52 ` [PATCH 2/9] ARM: ebsa110: Properly override I/O accessors Thierry Reding
2014-10-06 13:52 ` Thierry Reding
2014-10-06 13:52 ` [PATCH 3/9] ARM: ixp4xx: " Thierry Reding
2014-10-06 13:52 ` Thierry Reding
2014-10-06 13:52 ` Thierry Reding [this message]
2014-10-06 13:52 ` [PATCH 4/9] [IA64] Change xlate_dev_{kmem,mem}_ptr() prototypes Thierry Reding
2014-10-06 13:52 ` [PATCH 5/9] /dev/mem: Use more consistent data types Thierry Reding
2014-10-06 13:52 ` Thierry Reding
2014-10-06 13:52 ` [PATCH 6/9] asm-generic/io.h: Reconcile I/O accessor overrides Thierry Reding
2014-10-06 13:52 ` Thierry Reding
2014-10-06 13:52 ` [PATCH 7/9] asm-generic/io.h: Implement generic {read,write}s*() Thierry Reding
2014-10-06 13:52 ` Thierry Reding
2014-10-06 13:52 ` [PATCH 8/9] ARM: Use include/asm-generic/io.h Thierry Reding
2014-10-06 13:52 ` [PATCH 9/9] arm64: " Thierry Reding
2014-10-06 13:52 ` Thierry Reding
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