* [PATCH] x86/power/64: Use __pa() for physical address computation
@ 2016-08-14 2:07 Rafael J. Wysocki
2016-08-15 5:10 ` Ingo Molnar
0 siblings, 1 reply; 2+ messages in thread
From: Rafael J. Wysocki @ 2016-08-14 2:07 UTC (permalink / raw)
To: Linux PM list, the arch/x86 maintainers; +Cc: Linux Kernel Mailing List
From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The value of temp_level4_pgt is the physical address of the
top-level page directory, so use __pa() to compute it.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
arch/x86/power/hibernate_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux-pm/arch/x86/power/hibernate_64.c
===================================================================
--- linux-pm.orig/arch/x86/power/hibernate_64.c
+++ linux-pm/arch/x86/power/hibernate_64.c
@@ -113,7 +113,7 @@ static int set_up_temporary_mappings(voi
return result;
}
- temp_level4_pgt = (unsigned long)pgd - __PAGE_OFFSET;
+ temp_level4_pgt = __pa(pgd);
return 0;
}
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] x86/power/64: Use __pa() for physical address computation
2016-08-14 2:07 [PATCH] x86/power/64: Use __pa() for physical address computation Rafael J. Wysocki
@ 2016-08-15 5:10 ` Ingo Molnar
0 siblings, 0 replies; 2+ messages in thread
From: Ingo Molnar @ 2016-08-15 5:10 UTC (permalink / raw)
To: Rafael J. Wysocki
Cc: Linux PM list, the arch/x86 maintainers,
Linux Kernel Mailing List
* Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
>
> The value of temp_level4_pgt is the physical address of the
> top-level page directory, so use __pa() to compute it.
>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
> arch/x86/power/hibernate_64.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux-pm/arch/x86/power/hibernate_64.c
> ===================================================================
> --- linux-pm.orig/arch/x86/power/hibernate_64.c
> +++ linux-pm/arch/x86/power/hibernate_64.c
> @@ -113,7 +113,7 @@ static int set_up_temporary_mappings(voi
> return result;
> }
>
> - temp_level4_pgt = (unsigned long)pgd - __PAGE_OFFSET;
> + temp_level4_pgt = __pa(pgd);
> return 0;
> }
Acked-by: Ingo Molnar <mingo@kernel.org>
Thanks,
Ingo
^ permalink raw reply [flat|nested] 2+ messages in thread
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