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From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>
Cc: tglx@linutronix.de, mingo@kernel.org, hpa@zytor.com,
	linux-arch@vger.kernel.org, Tony Luck <tony.luck@intel.com>,
	toshi.kani@hp.com, Arnd Bergmann <arnd@arndb.de>,
	linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	rmk+kernel@arm.linux.org.uk, hch@lst.de,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 24/25] arch: remove ioremap_wt, replace with arch_memremap
Date: Mon, 27 Jul 2015 10:03:48 +0200	[thread overview]
Message-ID: <20150727080347.GA18599@lst.de> (raw)
In-Reply-To: <20150725024015.8664.42950.stgit@dwillia2-desk3.amr.corp.intel.com>

> +++ b/arch/frv/include/asm/io.h
> @@ -17,8 +17,6 @@
>  
>  #ifdef __KERNEL__
>  
> -#define ARCH_HAS_IOREMAP_WT
> -
>  #include <linux/types.h>
>  #include <asm/virtconvert.h>
>  #include <asm/string.h>
> @@ -267,20 +265,17 @@ static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned lon
>  	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
>  }
>  
> -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);
> -}


> +void *arch_memremap(resource_size_t offset, size_t size, unsigned long flags)
> +{
> +	return (void *) offset;
> +}
> +EXPORT_SYMBOL(arch_memremap);

This doesn't look like a correct replacement.

Also shouldn't the replacements of ioremap_fullcache or ioremap_wc be
in the previous patch?

A few more similar issues pop up for other architectures as well.

WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>
Cc: tglx@linutronix.de, mingo@kernel.org, hpa@zytor.com,
	linux-arch@vger.kernel.org, Tony Luck <tony.luck@intel.com>,
	toshi.kani@hp.com, Arnd Bergmann <arnd@arndb.de>,
	linux-nvdimm@ml01.01.org, linux-kernel@vger.kernel.org,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	rmk+kernel@arm.linux.org.uk, hch@lst.de,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 24/25] arch: remove ioremap_wt, replace with arch_memremap
Date: Mon, 27 Jul 2015 10:03:48 +0200	[thread overview]
Message-ID: <20150727080347.GA18599@lst.de> (raw)
In-Reply-To: <20150725024015.8664.42950.stgit@dwillia2-desk3.amr.corp.intel.com>

> +++ b/arch/frv/include/asm/io.h
> @@ -17,8 +17,6 @@
>  
>  #ifdef __KERNEL__
>  
> -#define ARCH_HAS_IOREMAP_WT
> -
>  #include <linux/types.h>
>  #include <asm/virtconvert.h>
>  #include <asm/string.h>
> @@ -267,20 +265,17 @@ static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned lon
>  	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
>  }
>  
> -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);
> -}


> +void *arch_memremap(resource_size_t offset, size_t size, unsigned long flags)
> +{
> +	return (void *) offset;
> +}
> +EXPORT_SYMBOL(arch_memremap);

This doesn't look like a correct replacement.

Also shouldn't the replacements of ioremap_fullcache or ioremap_wc be
in the previous patch?

A few more similar issues pop up for other architectures as well.

WARNING: multiple messages have this Message-ID (diff)
From: hch@lst.de (Christoph Hellwig)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 24/25] arch: remove ioremap_wt, replace with arch_memremap
Date: Mon, 27 Jul 2015 10:03:48 +0200	[thread overview]
Message-ID: <20150727080347.GA18599@lst.de> (raw)
In-Reply-To: <20150725024015.8664.42950.stgit@dwillia2-desk3.amr.corp.intel.com>

> +++ b/arch/frv/include/asm/io.h
> @@ -17,8 +17,6 @@
>  
>  #ifdef __KERNEL__
>  
> -#define ARCH_HAS_IOREMAP_WT
> -
>  #include <linux/types.h>
>  #include <asm/virtconvert.h>
>  #include <asm/string.h>
> @@ -267,20 +265,17 @@ static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned lon
>  	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
>  }
>  
> -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);
> -}


> +void *arch_memremap(resource_size_t offset, size_t size, unsigned long flags)
> +{
> +	return (void *) offset;
> +}
> +EXPORT_SYMBOL(arch_memremap);

This doesn't look like a correct replacement.

Also shouldn't the replacements of ioremap_fullcache or ioremap_wc be
in the previous patch?

A few more similar issues pop up for other architectures as well.

  parent reply	other threads:[~2015-07-27  8:03 UTC|newest]

Thread overview: 208+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-25  2:37 [PATCH v2 00/25] replace ioremap_{cache|wt} with memremap Dan Williams
2015-07-25  2:37 ` Dan Williams
2015-07-25  2:37 ` Dan Williams
2015-07-25  2:37 ` Dan Williams
2015-07-25  2:37 ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 01/25] mm, x86: Fix warning in ioremap RAM check Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 02/25] mm, x86: Remove region_is_ram() call from ioremap Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 03/25] mm: Fix bugs in region_is_ram() Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 04/25] mm: enhance region_is_ram() to distinguish 'unknown' vs 'mixed' Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-27 22:50   ` Luis R. Rodriguez
2015-07-27 22:50     ` Luis R. Rodriguez
2015-07-27 22:50     ` Luis R. Rodriguez
2015-07-28 21:33   ` Toshi Kani
2015-07-28 21:33     ` Toshi Kani
2015-07-28 21:33     ` Toshi Kani
2015-07-25  2:38 ` [PATCH v2 05/25] arch, drivers: don't include <asm/io.h> directly, use <linux/io.h> instead Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 06/25] cleanup IORESOURCE_CACHEABLE vs ioremap() Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 07/25] intel_iommu: fix leaked ioremap mapping Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 08/25] arch: introduce memremap() Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-26 17:25   ` Christoph Hellwig
2015-07-26 17:25     ` Christoph Hellwig
2015-07-26 17:25     ` Christoph Hellwig
2015-07-26 17:49     ` Dan Williams
2015-07-26 17:49       ` Dan Williams
2015-07-26 17:49       ` Dan Williams
2015-07-27  5:12       ` Christoph Hellwig
2015-07-27  5:12         ` Christoph Hellwig
2015-07-27  5:12         ` Christoph Hellwig
2015-07-27  5:12       ` Christoph Hellwig
2015-07-27  5:12         ` Christoph Hellwig
2015-07-27  5:12         ` Christoph Hellwig
2015-07-27 23:26         ` Dan Williams
2015-07-27 23:26           ` Dan Williams
2015-07-27 23:26           ` Dan Williams
2015-07-29  6:50           ` Christoph Hellwig
2015-07-29  6:50             ` Christoph Hellwig
2015-07-29  6:50             ` Christoph Hellwig
2015-07-29 18:27             ` Luis R. Rodriguez
2015-07-29 18:27               ` Luis R. Rodriguez
2015-07-29 18:27               ` Luis R. Rodriguez
2015-07-29 18:33               ` Dan Williams
2015-07-29 18:33                 ` Dan Williams
2015-07-29 18:33                 ` Dan Williams
2015-07-29 21:00                 ` Toshi Kani
2015-07-29 21:00                   ` Toshi Kani
2015-07-29 21:00                   ` Toshi Kani
2015-07-29 21:11                   ` Toshi Kani
2015-07-29 21:11                     ` Toshi Kani
2015-07-29 21:11                     ` Toshi Kani
2015-07-29 21:43                   ` Luis R. Rodriguez
2015-07-29 21:43                     ` Luis R. Rodriguez
2015-07-29 21:43                     ` Luis R. Rodriguez
2015-07-29 21:47                     ` Dan Williams
2015-07-29 21:47                       ` Dan Williams
2015-07-29 21:47                       ` Dan Williams
2015-07-29 21:52                       ` Luis R. Rodriguez
2015-07-29 21:52                         ` Luis R. Rodriguez
2015-07-29 21:52                         ` Luis R. Rodriguez
2015-07-30  0:00                     ` Toshi Kani
2015-07-30  0:00                       ` Toshi Kani
2015-07-30  0:00                       ` Toshi Kani
2015-08-11 21:30                       ` Luis R. Rodriguez
2015-08-11 21:30                         ` Luis R. Rodriguez
2015-08-11 21:30                         ` Luis R. Rodriguez
2015-08-11 22:40                         ` Toshi Kani
2015-08-11 22:40                           ` Toshi Kani
2015-08-11 22:40                           ` Toshi Kani
2015-08-11 22:52                           ` Luis R. Rodriguez
2015-08-11 22:52                             ` Luis R. Rodriguez
2015-08-11 22:52                             ` Luis R. Rodriguez
2015-08-11 23:13                             ` Dan Williams
2015-08-11 23:13                               ` Dan Williams
2015-08-11 23:13                               ` Dan Williams
2016-04-21 12:47                               ` Luis R. Rodriguez
2016-04-21 12:47                                 ` Luis R. Rodriguez
2016-04-21 12:47                                 ` Luis R. Rodriguez
2016-04-21 12:47                                 ` Luis R. Rodriguez
2015-07-27 23:17   ` Luis R. Rodriguez
2015-07-27 23:17     ` Luis R. Rodriguez
2015-07-27 23:17     ` Luis R. Rodriguez
2015-07-27 23:31     ` Dan Williams
2015-07-27 23:31       ` Dan Williams
2015-07-27 23:31       ` Dan Williams
2015-07-27 23:31       ` Dan Williams
2015-07-27 23:43       ` Luis R. Rodriguez
2015-07-27 23:43         ` Luis R. Rodriguez
2015-07-27 23:43         ` Luis R. Rodriguez
2015-07-28  0:32         ` Dan Williams
2015-07-28  0:32           ` Dan Williams
2015-07-28  0:32           ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 09/25] arm: switch from ioremap_cache to memremap Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 10/25] x86: " Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38 ` [PATCH v2 11/25] gma500: switch from acpi_os_ioremap to ioremap Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:38   ` Dan Williams
2015-07-25  2:39 ` [PATCH v2 12/25] i915: " Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-27  7:50   ` [Intel-gfx] " Daniel Vetter
2015-07-27  7:50     ` Daniel Vetter
2015-07-27  7:50     ` Daniel Vetter
2015-07-27  7:50     ` Daniel Vetter
2015-07-25  2:39 ` [PATCH v2 13/25] acpi: switch from ioremap_cache to memremap Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25 23:55   ` Rafael J. Wysocki
2015-07-25 23:55     ` Rafael J. Wysocki
2015-07-25 23:55     ` Rafael J. Wysocki
2015-07-25  2:39 ` [PATCH v2 14/25] toshiba laptop: replace ioremap_cache with ioremap Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39 ` [PATCH v2 15/25] memconsole: fix __iomem mishandling, switch to memremap Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25 22:02   ` Sergei Shtylyov
2015-07-25 22:02     ` Sergei Shtylyov
2015-07-25 22:02     ` Sergei Shtylyov
2015-07-25  2:39 ` [PATCH v2 16/25] visorbus: switch from ioremap_cache " Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39 ` [PATCH v2 17/25] intel-iommu: " Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-08-03 14:27   ` Joerg Roedel
2015-08-03 14:27     ` Joerg Roedel
2015-08-03 14:27     ` Joerg Roedel
2015-07-25  2:39 ` [PATCH v2 18/25] libnvdimm, pmem: " Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-28 22:51   ` Ross Zwisler
2015-07-28 22:51     ` Ross Zwisler
2015-07-28 22:51     ` Ross Zwisler
2015-07-28 23:06     ` Dan Williams
2015-07-28 23:06       ` Dan Williams
2015-07-28 23:06       ` Dan Williams
2015-07-25  2:39 ` [PATCH v2 19/25] pxa2xx-flash: " Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-10-02 17:51   ` Brian Norris
2015-10-02 17:51     ` Brian Norris
2015-10-02 17:51     ` Brian Norris
2015-10-09 21:33     ` Dan Williams
2015-10-09 21:33       ` Dan Williams
2015-10-09 21:33       ` Dan Williams
2015-07-25  2:39 ` [PATCH v2 20/25] sfi: " Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39 ` [PATCH v2 21/25] fbdev: switch from ioremap_wt " Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:39   ` Dan Williams
2015-07-25  2:40 ` [PATCH v2 22/25] pmem: " Dan Williams
2015-07-25  2:40   ` Dan Williams
2015-07-25  2:40   ` Dan Williams
2015-07-29 19:12   ` Ross Zwisler
2015-07-29 19:12     ` Ross Zwisler
2015-07-29 19:12     ` Ross Zwisler
2015-07-25  2:40 ` [PATCH v2 23/25] arch: remove ioremap_cache, replace with arch_memremap Dan Williams
2015-07-25  2:40   ` Dan Williams
2015-07-25  2:40   ` Dan Williams
2015-07-26 17:31   ` Christoph Hellwig
2015-07-26 17:31     ` Christoph Hellwig
2015-07-26 17:31     ` Christoph Hellwig
2015-07-25  2:40 ` [PATCH v2 24/25] arch: remove ioremap_wt, " Dan Williams
2015-07-25  2:40   ` Dan Williams
2015-07-25  2:40   ` Dan Williams
2015-07-26 17:31   ` Christoph Hellwig
2015-07-26 17:31     ` Christoph Hellwig
2015-07-26 17:31     ` Christoph Hellwig
2015-07-27  8:03   ` Christoph Hellwig [this message]
2015-07-27  8:03     ` Christoph Hellwig
2015-07-27  8:03     ` Christoph Hellwig
2015-07-29 22:21     ` Dan Williams
2015-07-29 22:21       ` Dan Williams
2015-07-29 22:21       ` Dan Williams
2015-07-25  2:40 ` [PATCH v2 25/25] pmem: convert to generic memremap Dan Williams
2015-07-25  2:40   ` Dan Williams
2015-07-25  2:40   ` Dan Williams
2015-07-26 17:33   ` Christoph Hellwig
2015-07-26 17:33     ` Christoph Hellwig
2015-07-26 17:33     ` Christoph Hellwig
2015-07-26 18:11     ` Dan Williams
2015-07-26 18:11       ` Dan Williams
2015-07-26 18:11       ` Dan Williams
2015-07-27  5:14       ` Christoph Hellwig
2015-07-27  5:14         ` Christoph Hellwig
2015-07-27  5:14         ` Christoph Hellwig

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