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Date: Tue, 11 Oct 2011 18:24:08 +0530
From: Suzuki Poulose <suzuki@in.ibm.com>
MIME-Version: 1.0
To: Scott Wood <scottwood@freescale.com>
Subject: Re: [PATCH 2/3] [44x] Enable CONFIG_RELOCATABLE for PPC44x
References: <20111010094627.16589.52367.stgit@suzukikp.in.ibm.com>
 <20111010095514.16589.85241.stgit@suzukikp.in.ibm.com>
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Cc: Michal Simek <monstr@monstr.eu>, tmarri@apm.com,
 Mahesh Jagannath Salgaonkar <mahesh@linux.vnet.ibm.com>,
 Dave Hansen <dave@linux.vnet.ibm.com>, David Laight <David.Laight@ACULAB.COM>,
 Paul Mackerras <paulus@samba.org>,
 linux ppc dev <linuxppc-dev@lists.ozlabs.org>, Vivek Goyal <vgoyal@redhat.com>
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On 10/10/11 23:30, Scott Wood wrote:
> On 10/10/2011 04:56 AM, Suzuki K. Poulose wrote:
>> #if defined(CONFIG_RELOCATABLE)&&  defined(CONFIG_44x)
>> #define __va(x) ((void *)(unsigned long)((phys_addr_t)(x) - PHYSICAL_START + (KERNELBASE + RELOC_OFFSET)))
>> #define __pa(x) ((unsigned long)(x) + PHYSICAL_START - (KERNELBASE + RELOC_OFFSET))
>> #endif
>
> Why is this 44x-specific?

As of now, we compile with relocations only for the 44x. We could make this
generic once the approach is accepted by everyone and implemented on the other
platforms.

Thanks

Suzuki