linux-kernel - Re: [PATCH V2] drm/radeon: Include swiotlb.h if SWIOTLB configured.

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Message-ID: <1344863784.17900.440.camel@thor.local>
Date:	Mon, 13 Aug 2012 15:16:24 +0200
From:	Michel Dänzer <michel@...nzer.net>
To:	Huacai Chen <chenhc@...ote.com>
Cc:	David Airlie <airlied@...ux.ie>, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, Fuxin Zhang <zhangfx@...ote.com>,
	Alex Deucher <alexdeucher@...il.com>,
	Hongliang Tao <taohl@...ote.com>, Hua Yan <yanh@...ote.com>
Subject: Re: [PATCH V2] drm/radeon: Include swiotlb.h if SWIOTLB configured.

On Mon, 2012-08-13 at 20:40 +0800, Huacai Chen wrote: 
> When SWIOTLB is configured, if without this patch kernel compilation
> fails with such error messages:
> 
> drivers/gpu/drm/radeon/radeon_ttm.c: In function 'radeon_ttm_tt_populate':
> drivers/gpu/drm/radeon/radeon_ttm.c:606:2: error: implicit declaration of function 'swiotlb_nr_tbl'
> drivers/gpu/drm/radeon/radeon_ttm.c:607:3: warning: passing argument 2 of 'ttm_dma_populate' from incompatible pointer type
> include/drm/ttm/ttm_page_alloc.h:81:12: note: expected 'struct device *' but argument is of type 'struct device *'
> drivers/gpu/drm/radeon/radeon_ttm.c: In function 'radeon_ttm_tt_unpopulate':
> drivers/gpu/drm/radeon/radeon_ttm.c:653:3: warning: passing argument 2 of 'ttm_dma_unpopulate' from incompatible pointer type
> include/drm/ttm/ttm_page_alloc.h:82:13: note: expected 'struct device *' but argument is of type 'struct device *'
> 
> V2:
> 1, Add compilation error messages;
> 2, Make the From: address the same as Signed-off-by address.
> 
> Signed-off-by: Huacai Chen <chenhc@...ote.com>

Reviewed-by: Michel Dänzer <michel.daenzer@....com>


-- 
Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer
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