linux-kernel - Re: [PATCH 1/4] drm/v3d: Fix debugfs reads of MMU regs.

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Message-ID: <0fbe7f70c8fcadec96e807c207cfc21671418515.camel@bootlin.com>
Date:   Fri, 19 Apr 2019 10:47:08 +0200
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     Eric Anholt <eric@...olt.net>, dri-devel@...ts.freedesktop.org
Cc:     linux-kernel@...r.kernel.org,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        david.emett@...adcom.com, thomas.spurden@...adcom.com
Subject: Re: [PATCH 1/4] drm/v3d: Fix debugfs reads of MMU regs.

Hi,

On Thu, 2019-04-18 at 17:10 -0700, Eric Anholt wrote:
> They're in the hub, not the individual cores.

Although I don't have docs to check, looks sane:

Reviewed-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>

Cheers,

Paul

> Signed-off-by: Eric Anholt <eric@...olt.net>
> ---
>  drivers/gpu/drm/v3d/v3d_debugfs.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/v3d/v3d_debugfs.c b/drivers/gpu/drm/v3d/v3d_debugfs.c
> index a2dc4262955e..356a8acfa72d 100644
> --- a/drivers/gpu/drm/v3d/v3d_debugfs.c
> +++ b/drivers/gpu/drm/v3d/v3d_debugfs.c
> @@ -26,6 +26,10 @@ static const struct v3d_reg_def v3d_hub_reg_defs[] = {
>  	REGDEF(V3D_HUB_IDENT3),
>  	REGDEF(V3D_HUB_INT_STS),
>  	REGDEF(V3D_HUB_INT_MSK_STS),
> +
> +	REGDEF(V3D_MMU_CTL),
> +	REGDEF(V3D_MMU_VIO_ADDR),
> +	REGDEF(V3D_MMU_VIO_ID),
>  };
>  
>  static const struct v3d_reg_def v3d_gca_reg_defs[] = {
> @@ -50,9 +54,6 @@ static const struct v3d_reg_def v3d_core_reg_defs[] = {
>  	REGDEF(V3D_PTB_BPCA),
>  	REGDEF(V3D_PTB_BPCS),
>  
> -	REGDEF(V3D_MMU_CTL),
> -	REGDEF(V3D_MMU_VIO_ADDR),
> -
>  	REGDEF(V3D_GMP_STATUS),
>  	REGDEF(V3D_GMP_CFG),
>  	REGDEF(V3D_GMP_VIO_ADDR),
-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com