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Date: Mon, 20 Sep 2010 16:41:37 +0200
From: Alexander Schmidt <alexs@linux.vnet.ibm.com>
To: Sonny Rao <sonnyrao@us.ibm.com>
Subject: Re: [PATCH 1/2]: Powerpc: Fix EHCA driver on relocatable kernel
Message-ID: <20100920164137.2c86faef@alex-laptop>
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On Thu, 19 Aug 2010 23:08:09 -0500
Sonny Rao <sonnyrao@us.ibm.com> wrote:

> Some modules (like eHCA) want to map all of kernel memory, for this to
> work with a relocated kernel, we need to export kernstart_addr so
> modules can use PHYSICAL_START and memstart_addr so they could use
> MEMORY_START.  Note that the 32bit code already exports these symbols.
> 
> Signed-off-By: Sonny Rao <sonnyrao@us.ibm.com>

Acked-by: Alexander Schmidt <alexs@linux.vnet.ibm.com>

> Index: common/arch/powerpc/mm/init_64.c
> ===================================================================
> --- common.orig/arch/powerpc/mm/init_64.c	2010-08-16 02:38:33.000000000 -0500
> +++ common/arch/powerpc/mm/init_64.c	2010-08-16 02:39:25.000000000 -0500
> @@ -79,7 +79,9 @@
>  #endif /* CONFIG_PPC_STD_MMU_64 */
> 
>  phys_addr_t memstart_addr = ~0;
> +EXPORT_SYMBOL(memstart_addr);
>  phys_addr_t kernstart_addr;
> +EXPORT_SYMBOL(kernstart_addr);
> 
>  void free_initmem(void)
>  {
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