linux-kernel - Re: [RFT v2] iommu/amd: use subsys

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Date:	Fri, 8 Apr 2016 17:25:49 -0700
From:	"Luis R. Rodriguez" <mcgrof@...nel.org>
To:	Joerg Roedel <joro@...tes.org>, christian.koenig@....com,
	oded.gabbay@...il.com
Cc:	iommu@...ts.linux-foundation.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Luis R. Rodriguez" <mcgrof@...nel.org>
Subject: Re: [RFT v2] iommu/amd: use subsys_initcall() on amdv2 iommu

On Tue, Mar 29, 2016 at 10:41 AM, Luis R. Rodriguez <mcgrof@...nel.org> wrote:
> We need to ensure amd iommu v2 initializes before
> driver uses such as drivers/gpu/drm/amd/amdkfd/kfd_module.c,
> to do this make its init routine a subsys_initcall() which
> ensures its load init is called first than modules when
> built-in.
>
> This reverts the old work around implemented through commit
> 1bacc894c227fad8a7 ("drivers: Move iommu/ before gpu/ in Makefile"),
> instead of making the dependency implicit by linker order this
> makes the ordering requirement explicit through proper kernel
> APIs.
>
> Cc: Oded Gabbay <oded.gabbay@....com>
> Cc: Christian König <christian.koenig@....com>
> Signed-off-by: Luis R. Rodriguez <mcgrof@...nel.org>

*poke*

 Luis