linux-kernel - Re: [PATCH v2 3/6] drm/vram: use drm_gem_ttm_print

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Message-ID: <20190903105828.GW2112@phenom.ffwll.local>
Date:   Tue, 3 Sep 2019 12:58:28 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Gerd Hoffmann <kraxel@...hat.com>
Cc:     dri-devel@...ts.freedesktop.org,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 3/6] drm/vram: use drm_gem_ttm_print_info

On Tue, Sep 03, 2019 at 12:12:45PM +0200, Gerd Hoffmann wrote:
> Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
> Acked-by: Thomas Zimmermann <tzimmermann@...e.de>
> ---
>  drivers/gpu/drm/drm_gem_vram_helper.c | 4 +++-
>  drivers/gpu/drm/Kconfig               | 1 +
>  2 files changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
> index fd751078bae1..71552f757b4a 100644
> --- a/drivers/gpu/drm/drm_gem_vram_helper.c
> +++ b/drivers/gpu/drm/drm_gem_vram_helper.c
> @@ -1,5 +1,6 @@
>  // SPDX-License-Identifier: GPL-2.0-or-later
>  
> +#include <drm/drm_gem_ttm_helper.h>
>  #include <drm/drm_gem_vram_helper.h>
>  #include <drm/drm_device.h>
>  #include <drm/drm_mode.h>
> @@ -633,5 +634,6 @@ static const struct drm_gem_object_funcs drm_gem_vram_object_funcs = {
>  	.pin	= drm_gem_vram_object_pin,
>  	.unpin	= drm_gem_vram_object_unpin,
>  	.vmap	= drm_gem_vram_object_vmap,
> -	.vunmap	= drm_gem_vram_object_vunmap
> +	.vunmap	= drm_gem_vram_object_vunmap,
> +	.print_info = drm_gem_ttm_print_info,

Yeah definitely link to the new way of doing stuff in the kerneldoc of the
previous patch. For this.

Reviewed-by: Daniel Vetter <daniel.vetter@...ll.ch>

>  };
> diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
> index f7b25519f95c..1be8ad30d8fe 100644
> --- a/drivers/gpu/drm/Kconfig
> +++ b/drivers/gpu/drm/Kconfig
> @@ -169,6 +169,7 @@ config DRM_VRAM_HELPER
>  	tristate
>  	depends on DRM
>  	select DRM_TTM
> +	select DRM_TTM_HELPER

Select isn't recursive, which means anyone who selects vram helpers now
also needs to select ttm helpers. This is already broken with DRM_TTM I
think ...
-Daniel


>  	help
>  	  Helpers for VRAM memory management
>  
> -- 
> 2.18.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch