linux-kernel - [PATCH] drm: Introduce RGB 64-bit 16:16:16:16 float format

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Message-Id: <1511427416-3216-1-git-send-email-tina.zhang@intel.com>
Date:   Thu, 23 Nov 2017 16:56:55 +0800
From:   Tina Zhang <tina.zhang@...el.com>
To:     alex.williamson@...hat.com, kraxel@...hat.com,
        chris@...is-wilson.co.uk, joonas.lahtinen@...ux.intel.com,
        zhenyuw@...ux.intel.com, zhiyuan.lv@...el.com,
        zhi.a.wang@...el.com, kevin.tian@...el.com, daniel@...ll.ch,
        hang.yuan@...el.com
Cc:     Tina Zhang <tina.zhang@...el.com>, intel-gfx@...ts.freedesktop.org,
        intel-gvt-dev@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH] drm: Introduce RGB 64-bit 16:16:16:16 float format

This patch is from "[PATCH v19 0/6] drm/i915/gvt: Dma-buf support for GVT-g":
https://lists.freedesktop.org/archives/intel-gvt-dev/2017-November/002508.html

The RGB 64-bit 16:16:16:16 float pixel format is needed by some Apps in
windows. The float format in each component is 1:5:10 MSb-sign:exponent:
fraction.

This patch is to introduce the format to drm, so that the windows guest's
framebuffer in this kind of format can be recognized and used by linux
host.

Tina Zhang (1):
  drm: Introduce RGB 64-bit 16:16:16:16 float format

 include/uapi/drm/drm_fourcc.h | 4 ++++
 1 file changed, 4 insertions(+)

-- 
2.7.4