linux-kernel - RE: [Bug 13484] System report Int 6 error if E820 table reserve the memory above 4G

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Date:	Mon, 8 Jun 2009 17:41:38 +0800
From:	"Peer Chen" <pchen@...dia.com>
To:	"Yinghai Lu" <yinghai@...nel.org>,
	<bugzilla-daemon@...zilla.kernel.org>,
	"Ingo Molnar" <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, <linux-kernel@...r.kernel.org>,
	"Bernhard Walle" <bwalle@...e.de>
Subject: RE: [Bug 13484] System report Int 6 error if E820 table reserve the memory above 4G

Yinghai,

The patch works, thanks.

BRs
Peer Chen
> -----Original Message-----
> From: Yinghai Lu [mailto:yinghai@...nel.org]
> Sent: Monday, June 08, 2009 2:50 PM
> To: bugzilla-daemon@...zilla.kernel.org; Ingo Molnar; H. Peter Anvin;
Thomas Gleixner; H. Peter Anvin; linux-kernel@...r.kernel.org;
> Peer Chen; Bernhard Walle
> Subject: Re: [Bug 13484] System report Int 6 error if E820 table
reserve the memory above 4G
> 
> bugzilla-daemon@...zilla.kernel.org wrote:
> > http://bugzilla.kernel.org/show_bug.cgi?id=13484
> >
> >
> >
> >
> >
> > --- Comment #3 from Peer Chen <pchen@...dia.com>  2009-06-08
05:43:25 ---
> > I'm using 64bit CPU, Intel P8400.
> >
> > Yes, if set CONFIG_PHYS_ADDR_T_64BIT, the problem goes away.
> >
> 
> please check
> 
> ---
>  drivers/firmware/memmap.c    |   12 +++++-------
>  include/linux/firmware-map.h |   12 ++++--------
>  2 files changed, 9 insertions(+), 15 deletions(-)
> 
> Index: linux-2.6/drivers/firmware/memmap.c
> ===================================================================
> --- linux-2.6.orig/drivers/firmware/memmap.c
> +++ linux-2.6/drivers/firmware/memmap.c
> @@ -31,8 +31,8 @@
>   * information is necessary as for the resource tree.
>   */
>  struct firmware_map_entry {
> -	resource_size_t		start;	/* start of the memory range */
> -	resource_size_t		end;	/* end of the memory range
(incl.) */
> +	u64			start;	/* start of the memory range */
> +	u64			end;	/* end of the memory range
(incl.) */
>  	const char		*type;	/* type of the memory range */
>  	struct list_head	list;	/* entry for the linked list */
>  	struct kobject		kobj;   /* kobject for each entry */
> @@ -101,7 +101,7 @@ static LIST_HEAD(map_entries);
>   * Common implementation of firmware_map_add() and
firmware_map_add_early()
>   * which expects a pre-allocated struct firmware_map_entry.
>   **/
> -static int firmware_map_add_entry(resource_size_t start,
resource_size_t end,
> +static int firmware_map_add_entry(u64 start, u64 end,
>  				  const char *type,
>  				  struct firmware_map_entry *entry)
>  {
> @@ -132,8 +132,7 @@ static int firmware_map_add_entry(resour
>   *
>   * Returns 0 on success, or -ENOMEM if no memory could be allocated.
>   **/
> -int firmware_map_add(resource_size_t start, resource_size_t end,
> -		     const char *type)
> +int firmware_map_add(u64 start, u64 end, const char *type)
>  {
>  	struct firmware_map_entry *entry;
> 
> @@ -157,8 +156,7 @@ int firmware_map_add(resource_size_t sta
>   *
>   * Returns 0 on success, or -ENOMEM if no memory could be allocated.
>   **/
> -int __init firmware_map_add_early(resource_size_t start,
resource_size_t end,
> -				  const char *type)
> +int __init firmware_map_add_early(u64 start, u64 end, const char
*type)
>  {
>  	struct firmware_map_entry *entry;
> 
> Index: linux-2.6/include/linux/firmware-map.h
> ===================================================================
> --- linux-2.6.orig/include/linux/firmware-map.h
> +++ linux-2.6/include/linux/firmware-map.h
> @@ -24,21 +24,17 @@
>   */
>  #ifdef CONFIG_FIRMWARE_MEMMAP
> 
> -int firmware_map_add(resource_size_t start, resource_size_t end,
> -		     const char *type);
> -int firmware_map_add_early(resource_size_t start, resource_size_t
end,
> -			   const char *type);
> +int firmware_map_add(u64 start, u64 end, const char *type);
> +int firmware_map_add_early(u64 start, u64 end, const char *type);
> 
>  #else /* CONFIG_FIRMWARE_MEMMAP */
> 
> -static inline int firmware_map_add(resource_size_t start,
resource_size_t end,
> -				   const char *type)
> +static inline int firmware_map_add(u64 start, u64 end, const char
*type)
>  {
>  	return 0;
>  }
> 
> -static inline int firmware_map_add_early(resource_size_t start,
> -					 resource_size_t end, const char
*type)
> +static inline int firmware_map_add_early(u64 start, u64 end, const
char *type)
>  {
>  	return 0;
>  }
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