linux-kernel - Re: [PATCH 3/5] drm,kdb,kms: Add an enter argument to mode_set_base

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Date:	Tue, 12 Oct 2010 08:38:27 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Jason Wessel <jason.wessel@...driver.com>
Cc:	airlied@...ux.ie, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] drm,kdb,kms: Add an enter argument to
 mode_set_base_atomic() API

On Tue, 12 Oct 2010 07:49:59 -0500
Jason Wessel <jason.wessel@...driver.com> wrote:

> Some devices such as the pre nv02 chips have enter and exit
> constraints where hardware compression must be turned off and
> re-enabled on resuming normal operations.
> 
> This patch extends the mode_set_base_atomic() call to pass an argument
> to indicate if this is an entry or an exit from an atomic kernel mode
> set change.  Individual drm drivers can properly save and restore
> state accordingly.
> 
> Signed-off-by: Jason Wessel <jason.wessel@...driver.com>
> CC: Jesse Barnes <jbarnes@...tuousgeek.org>
> CC: David Airlie <airlied@...ux.ie>
> CC: dri-devel@...ts.freedesktop.org
> ---
>  drivers/gpu/drm/drm_fb_helper.c             |    5 +++--
>  drivers/gpu/drm/i915/intel_display.c        |    4 ++--
>  drivers/gpu/drm/nouveau/nv04_crtc.c         |    2 +-
>  drivers/gpu/drm/nouveau/nv50_crtc.c         |    2 +-
>  drivers/gpu/drm/radeon/atombios_crtc.c      |    2 +-
>  drivers/gpu/drm/radeon/radeon_legacy_crtc.c |    2 +-
>  drivers/gpu/drm/radeon/radeon_mode.h        |    4 ++--
>  include/drm/drm_crtc_helper.h               |    3 ++-
>  8 files changed, 13 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
> index 6a5e403..625a2d5 100644
> --- a/drivers/gpu/drm/drm_fb_helper.c
> +++ b/drivers/gpu/drm/drm_fb_helper.c
> @@ -263,7 +263,8 @@ int drm_fb_helper_debug_enter(struct fb_info *info)
>  			funcs->mode_set_base_atomic(mode_set->crtc,
>  						    mode_set->fb,
>  						    mode_set->x,
> -						    mode_set->y);
> +						    mode_set->y,
> +						    1);

An enum for the last arg would make this call much less mysterious. :)

-- 
Jesse Barnes, Intel Open Source Technology Center
--
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