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From: Zhi Wang <zhi.a.wang@intel.com>
To: "intel-gfx@lists.freedesktop.org"
	<intel-gfx@lists.freedesktop.org>,
	"Tian, Kevin" <kevin.tian@intel.com>,
	"Gao, Ping A" <ping.a.gao@intel.com>,
	Zhiyuan Lv <zhiyuan.lv@intel.com>
Subject: Write GFX_FLSH_CNT after updating GGTT entries
Date: Thu, 19 Nov 2015 18:20:23 +0800	[thread overview]
Message-ID: <564DA267.1030004@intel.com> (raw)

Hi Gurus:
     I'm curious about the register GFX_FLSH_CNT(0x101008) in 
i915_gem_gtt.c. Does these register exist in recently generations? After 
digging into b-spec, it looks only BXT and CHV has this register. Does 
the desktop platform also have this register which needs to be written 
after updating GGTT MMIOs?

BTW: Looks windows driver haven't used this MMIO... So whose behavior is 
the right behavior?

Thanks,
Zhi.
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             reply	other threads:[~2015-11-19 10:20 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-19 10:20 Zhi Wang [this message]
2015-11-19 10:35 ` Write GFX_FLSH_CNT after updating GGTT entries Ville Syrjälä
2015-11-19 13:04   ` Zhi Wang
2015-11-19 13:26     ` Ville Syrjälä
2015-11-19 13:28       ` Zhi Wang
2015-11-20  9:23   ` Tian, Kevin
2015-11-20  9:40     ` Chris Wilson
2015-11-20  9:53       ` Tian, Kevin

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