From: Borislav Petkov <bp@alien8.de>
To: Ingo Molnar <mingo@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 08/20] arch/*/io.h: Add ioremap_wt() to all architectures
Date: Thu, 4 Jun 2015 18:55:16 +0200 [thread overview]
Message-ID: <1433436928-31903-9-git-send-email-bp@alien8.de> (raw)
In-Reply-To: <1433436928-31903-1-git-send-email-bp@alien8.de>
From: Toshi Kani <toshi.kani@hp.com>
Add ioremap_wt() to all arch-specific asm/io.h headers which
define ioremap_wc() locally. These headers do not include
<asm-generic/iomap.h>. Some of them include <asm-generic/io.h>,
but ioremap_wt() is defined for consistency since they define all
ioremap_xxx locally.
In all architectures without Write-Through support, ioremap_wt() is
defined indentical to ioremap_nocache().
frv and m68k already have ioremap_writethrough(). On those we
add ioremap_wt() indetical to ioremap_writethrough() and defines
ARCH_HAS_IOREMAP_WT in both architectures.
The ioremap_wt() interface is exported to drivers.
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: arnd@arndb.de
Cc: Elliott@hp.com
Cc: hch@lst.de
Cc: hmh@hmh.eng.br
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: jgross@suse.com
Cc: konrad.wilk@oracle.com
Cc: linux-mm <linux-mm@kvack.org>
Cc: linux-nvdimm@lists.01.org
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: stefan.bader@canonical.com
Cc: x86-ml <x86@kernel.org>
Cc: yigal@plexistor.com
Link: http://lkml.kernel.org/r/1433187393-22688-6-git-send-email-toshi.kani@hp.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
arch/arc/include/asm/io.h | 1 +
arch/arm/include/asm/io.h | 1 +
arch/arm64/include/asm/io.h | 1 +
arch/avr32/include/asm/io.h | 1 +
arch/frv/include/asm/io.h | 7 +++++++
arch/m32r/include/asm/io.h | 1 +
arch/m68k/include/asm/io_mm.h | 7 +++++++
arch/m68k/include/asm/io_no.h | 6 ++++++
arch/metag/include/asm/io.h | 3 +++
arch/microblaze/include/asm/io.h | 1 +
arch/mn10300/include/asm/io.h | 1 +
arch/nios2/include/asm/io.h | 1 +
arch/s390/include/asm/io.h | 1 +
arch/sparc/include/asm/io_32.h | 1 +
arch/sparc/include/asm/io_64.h | 1 +
arch/tile/include/asm/io.h | 1 +
arch/xtensa/include/asm/io.h | 1 +
17 files changed, 36 insertions(+)
diff --git a/arch/arc/include/asm/io.h b/arch/arc/include/asm/io.h
index cabd518cb253..7cc4ced5dbf4 100644
--- a/arch/arc/include/asm/io.h
+++ b/arch/arc/include/asm/io.h
@@ -20,6 +20,7 @@ extern void iounmap(const void __iomem *addr);
#define ioremap_nocache(phy, sz) ioremap(phy, sz)
#define ioremap_wc(phy, sz) ioremap(phy, sz)
+#define ioremap_wt(phy, sz) ioremap(phy, sz)
/* Change struct page to physical address */
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index db58deb00aa7..1b7677d1e5e1 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -336,6 +336,7 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
#define ioremap_nocache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE)
#define ioremap_cache(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_CACHED)
#define ioremap_wc(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE_WC)
+#define ioremap_wt(cookie,size) __arm_ioremap((cookie), (size), MT_DEVICE)
#define iounmap __arm_iounmap
/*
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 540f7c0aea82..7116d3973058 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -170,6 +170,7 @@ extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size);
#define ioremap(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
#define ioremap_nocache(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
#define ioremap_wc(addr, size) __ioremap((addr), (size), __pgprot(PROT_NORMAL_NC))
+#define ioremap_wt(addr, size) __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
#define iounmap __iounmap
/*
diff --git a/arch/avr32/include/asm/io.h b/arch/avr32/include/asm/io.h
index 4f5ec2bb7172..e998ff5d8e1a 100644
--- a/arch/avr32/include/asm/io.h
+++ b/arch/avr32/include/asm/io.h
@@ -296,6 +296,7 @@ extern void __iounmap(void __iomem *addr);
__iounmap(addr)
#define ioremap_wc ioremap_nocache
+#define ioremap_wt ioremap_nocache
#define cached(addr) P1SEGADDR(addr)
#define uncached(addr) P2SEGADDR(addr)
diff --git a/arch/frv/include/asm/io.h b/arch/frv/include/asm/io.h
index 0b78bc89e840..1fe98febc081 100644
--- a/arch/frv/include/asm/io.h
+++ b/arch/frv/include/asm/io.h
@@ -17,6 +17,8 @@
#ifdef __KERNEL__
+#define ARCH_HAS_IOREMAP_WT
+
#include <linux/types.h>
#include <asm/virtconvert.h>
#include <asm/string.h>
@@ -270,6 +272,11 @@ static inline void __iomem *ioremap_writethrough(unsigned long physaddr, unsigne
return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
}
+static inline void __iomem *ioremap_wt(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
+}
+
static inline void __iomem *ioremap_fullcache(unsigned long physaddr, unsigned long size)
{
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 9cc00dbd59ce..0c3f25ee3381 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -68,6 +68,7 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
extern void iounmap(volatile void __iomem *addr);
#define ioremap_nocache(off,size) ioremap(off,size)
#define ioremap_wc ioremap_nocache
+#define ioremap_wt ioremap_nocache
/*
* IO bus memory addresses are also 1:1 with the physical address
diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h
index 8955b40a5dc4..7c12138bb3cb 100644
--- a/arch/m68k/include/asm/io_mm.h
+++ b/arch/m68k/include/asm/io_mm.h
@@ -20,6 +20,8 @@
#ifdef __KERNEL__
+#define ARCH_HAS_IOREMAP_WT
+
#include <linux/compiler.h>
#include <asm/raw_io.h>
#include <asm/virtconvert.h>
@@ -470,6 +472,11 @@ static inline void __iomem *ioremap_writethrough(unsigned long physaddr,
{
return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
}
+static inline void __iomem *ioremap_wt(unsigned long physaddr,
+ unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
+}
static inline void __iomem *ioremap_fullcache(unsigned long physaddr,
unsigned long size)
{
diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h
index a93c8cde4d38..5fff9a22296e 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -3,6 +3,8 @@
#ifdef __KERNEL__
+#define ARCH_HAS_IOREMAP_WT
+
#include <asm/virtconvert.h>
#include <asm-generic/iomap.h>
@@ -157,6 +159,10 @@ static inline void *ioremap_writethrough(unsigned long physaddr, unsigned long s
{
return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
}
+static inline void *ioremap_wt(unsigned long physaddr, unsigned long size)
+{
+ return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
+}
static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
{
return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
diff --git a/arch/metag/include/asm/io.h b/arch/metag/include/asm/io.h
index d5779b0ec573..9890f21eadbe 100644
--- a/arch/metag/include/asm/io.h
+++ b/arch/metag/include/asm/io.h
@@ -160,6 +160,9 @@ extern void __iounmap(void __iomem *addr);
#define ioremap_wc(offset, size) \
__ioremap((offset), (size), _PAGE_WR_COMBINE)
+#define ioremap_wt(offset, size) \
+ __ioremap((offset), (size), 0)
+
#define iounmap(addr) \
__iounmap(addr)
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index 940f5fc1d1da..ec3da1135994 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -43,6 +43,7 @@ extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
#define ioremap_nocache(addr, size) ioremap((addr), (size))
#define ioremap_fullcache(addr, size) ioremap((addr), (size))
#define ioremap_wc(addr, size) ioremap((addr), (size))
+#define ioremap_wt(addr, size) ioremap((addr), (size))
#endif /* CONFIG_MMU */
diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h
index cc4a2ba9e228..07c5b4a3903b 100644
--- a/arch/mn10300/include/asm/io.h
+++ b/arch/mn10300/include/asm/io.h
@@ -282,6 +282,7 @@ static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long
}
#define ioremap_wc ioremap_nocache
+#define ioremap_wt ioremap_nocache
static inline void iounmap(void __iomem *addr)
{
diff --git a/arch/nios2/include/asm/io.h b/arch/nios2/include/asm/io.h
index 6e24d7cceb0c..c5a62da22cd2 100644
--- a/arch/nios2/include/asm/io.h
+++ b/arch/nios2/include/asm/io.h
@@ -46,6 +46,7 @@ static inline void iounmap(void __iomem *addr)
}
#define ioremap_wc ioremap_nocache
+#define ioremap_wt ioremap_nocache
/* Pages to physical address... */
#define page_to_phys(page) virt_to_phys(page_to_virt(page))
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index 30fd5c84680e..cb5fdf3a78fc 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -29,6 +29,7 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
#define ioremap_nocache(addr, size) ioremap(addr, size)
#define ioremap_wc ioremap_nocache
+#define ioremap_wt ioremap_nocache
static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
{
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index 407ac14295f4..57f26c398dc9 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -129,6 +129,7 @@ static inline void sbus_memcpy_toio(volatile void __iomem *dst,
void __iomem *ioremap(unsigned long offset, unsigned long size);
#define ioremap_nocache(X,Y) ioremap((X),(Y))
#define ioremap_wc(X,Y) ioremap((X),(Y))
+#define ioremap_wt(X,Y) ioremap((X),(Y))
void iounmap(volatile void __iomem *addr);
/* Create a virtual mapping cookie for an IO port range */
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 50d4840d9aeb..c32fa3f752c8 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -402,6 +402,7 @@ static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
#define ioremap_nocache(X,Y) ioremap((X),(Y))
#define ioremap_wc(X,Y) ioremap((X),(Y))
+#define ioremap_wt(X,Y) ioremap((X),(Y))
static inline void iounmap(volatile void __iomem *addr)
{
diff --git a/arch/tile/include/asm/io.h b/arch/tile/include/asm/io.h
index 6ef4ecab1df2..9c3d950a7231 100644
--- a/arch/tile/include/asm/io.h
+++ b/arch/tile/include/asm/io.h
@@ -54,6 +54,7 @@ extern void iounmap(volatile void __iomem *addr);
#define ioremap_nocache(physaddr, size) ioremap(physaddr, size)
#define ioremap_wc(physaddr, size) ioremap(physaddr, size)
+#define ioremap_wt(physaddr, size) ioremap(physaddr, size)
#define ioremap_writethrough(physaddr, size) ioremap(physaddr, size)
#define ioremap_fullcache(physaddr, size) ioremap(physaddr, size)
diff --git a/arch/xtensa/include/asm/io.h b/arch/xtensa/include/asm/io.h
index fe1600a09438..c39bb6e61911 100644
--- a/arch/xtensa/include/asm/io.h
+++ b/arch/xtensa/include/asm/io.h
@@ -59,6 +59,7 @@ static inline void __iomem *ioremap_cache(unsigned long offset,
}
#define ioremap_wc ioremap_nocache
+#define ioremap_wt ioremap_nocache
static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
{
--
2.3.5
next prev parent reply other threads:[~2015-06-04 17:01 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-04 16:55 [PATCH 00/20] tip queue 2015-06-04 Borislav Petkov
2015-06-04 16:55 ` [PATCH 01/20] x86/mm/pat: Untangle pat_init() Borislav Petkov
2015-06-07 17:39 ` [tip:x86/mm] " tip-bot for Borislav Petkov
2015-06-04 16:55 ` [PATCH 02/20] x86/mm/pat: Emulate PAT when it is disabled Borislav Petkov
2015-06-07 17:39 ` [tip:x86/mm] " tip-bot for Borislav Petkov
2015-06-04 16:55 ` [PATCH 03/20] x86/mm/pat: Remove pat_enabled() checks Borislav Petkov
2015-06-07 17:40 ` [tip:x86/mm] " tip-bot for Borislav Petkov
2015-06-04 16:55 ` [PATCH 04/20] x86/mm/pat: Use 7th PAT MSR slot for Write-Through PAT type Borislav Petkov
2015-06-04 16:55 ` [PATCH 05/20] x86/mm/pat: Change reserve_memtype() for Write-Through type Borislav Petkov
2015-06-07 17:40 ` [tip:x86/mm] " tip-bot for Toshi Kani
2015-06-04 16:55 ` [PATCH 06/20] x86/mm: Teach is_new_memtype_allowed() about " Borislav Petkov
2015-06-07 17:41 ` [tip:x86/mm] " tip-bot for Toshi Kani
2015-06-04 16:55 ` [PATCH 07/20] x86/mm, asm-generic: Add ioremap_wt() for creating Write-Through mappings Borislav Petkov
2015-06-07 17:41 ` [tip:x86/mm] " tip-bot for Toshi Kani
2015-06-04 16:55 ` Borislav Petkov [this message]
2015-06-07 17:41 ` [tip:x86/mm] arch/*/io.h: Add ioremap_wt() to all architectures tip-bot for Toshi Kani
2015-06-04 16:55 ` [PATCH 09/20] video/fbdev, asm/io.h: Remove ioremap_writethrough() Borislav Petkov
2015-06-07 17:41 ` [tip:x86/mm] " tip-bot for Toshi Kani
2015-06-04 16:55 ` [PATCH 10/20] x86/mm/pat: Add pgprot_writethrough() Borislav Petkov
2015-06-07 17:42 ` [tip:x86/mm] " tip-bot for Toshi Kani
2015-06-04 16:55 ` [PATCH 11/20] x86/mm/pat: Extend set_page_memtype() to support Write-Through type Borislav Petkov
2015-06-07 17:42 ` [tip:x86/mm] " tip-bot for Toshi Kani
2015-06-04 16:55 ` [PATCH 12/20] x86/mm: Add set_memory_wt() for " Borislav Petkov
2015-06-07 17:42 ` [tip:x86/mm] x86/mm/pat: " tip-bot for Toshi Kani
2015-06-04 16:55 ` [PATCH 13/20] drivers/block/pmem: Map NVDIMM in Write-Through mode Borislav Petkov
2015-06-07 17:43 ` [tip:x86/mm] " tip-bot for Toshi Kani
2015-06-04 16:55 ` [PATCH 14/20] x86/mce: Add Local MCE definitions Borislav Petkov
2015-06-07 17:43 ` [tip:x86/core] " tip-bot for Ashok Raj
2015-06-04 16:55 ` [PATCH 15/20] x86/mce: Add infrastructure to support Local MCE Borislav Petkov
2015-06-07 17:43 ` [tip:x86/core] " tip-bot for Ashok Raj
2015-06-04 16:55 ` [PATCH 16/20] x86/mce: Handle Local MCE events Borislav Petkov
2015-06-07 17:44 ` [tip:x86/core] " tip-bot for Ashok Raj
2015-06-04 16:55 ` [PATCH 17/20] x86: Kill CONFIG_X86_HT Borislav Petkov
2015-06-07 17:44 ` [tip:x86/core] " tip-bot for Borislav Petkov
2015-06-04 16:55 ` [PATCH 18/20] x86/uapi: Do not export <asm/msr-index.h> as part of the user API headers Borislav Petkov
2015-06-07 17:44 ` [tip:x86/core] " tip-bot for Borislav Petkov
2015-06-04 16:55 ` [PATCH 19/20] x86/microcode: Disable builtin microcode loading on 32-bit for now Borislav Petkov
2015-06-07 17:45 ` [tip:x86/microcode] " tip-bot for Borislav Petkov
2015-06-04 16:55 ` [PATCH 20/20] x86/microcode: Correct variables type Borislav Petkov
2015-06-07 17:45 ` [tip:x86/microcode] x86/microcode: Correct CPU family related variable types tip-bot for Andy Shevchenko
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=1433436928-31903-9-git-send-email-bp@alien8.de \
--to=bp@alien8.de \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@kernel.org \
/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;
as well as URLs for NNTP newsgroup(s).