linux-kernel - Re: [PATCH] drm/hisilicon: get the BO from drm_fb rather than hibmc

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Date:   Mon, 6 Jan 2020 14:04:12 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Tian Tao <tiantao6@...ilicon.com>, puck.chen@...ilicon.com,
        airlied@...ux.ie, daniel@...ll.ch, kraxel@...hat.com,
        alexander.deucher@....com, tglx@...utronix.de,
        dri-devel@...ts.freedesktop.org, xinliang.liu@...aro.org,
        linux-kernel@...r.kernel.org
Cc:     linuxarm@...wei.com
Subject: Re: [PATCH] drm/hisilicon: get the BO from drm_fb rather than
 hibmc_fb

Hi

Am 31.12.19 um 07:50 schrieb Tian Tao:
> since we can get the BO from drm_fb rather than hibmc_fb,do not need
> the hibmc_fb.so we delete the local variable hibmc_fb.
> 
> Signed-off-by: Tian Tao <tiantao6@...ilicon.com>
> Signed-off-by: Gong junjie <gongjunjie2@...wei.com>
> ---
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
> index 6bf4334..12b38ac 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
> @@ -105,14 +105,12 @@ static void hibmc_plane_atomic_update(struct drm_plane *plane,
>  	s64 gpu_addr = 0;
>  	unsigned int line_l;
>  	struct hibmc_drm_private *priv = plane->dev->dev_private;
> -	struct hibmc_framebuffer *hibmc_fb;
>  	struct drm_gem_vram_object *gbo;
>  
>  	if (!state->fb)
>  		return;
>  
> -	hibmc_fb = to_hibmc_framebuffer(state->fb);
> -	gbo = drm_gem_vram_of_gem(hibmc_fb->obj);
> +	gbo = drm_gem_vram_of_gem(state->fb->obj[0]);
>  
>  	gpu_addr = drm_gem_vram_offset(gbo);
>  	if (WARN_ON_ONCE(gpu_addr < 0))
> 

Thanks for the patch. This has meanwhile been fixed as part of

	commit 3e10d2ffd245f996c36f87b0a8027a719e6135c3
	Author: Thomas Zimmermann <tzimmermann@...e.de>
	Date:   Tue Dec 3 09:38:16 2019 +0100

	    drm/hisilicon/hibmc: Replace struct hibmc_framebuffer with
		generic code

Best regards
Thomas

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer



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