From: Chris Wilson <chris@chris-wilson.co.uk>
To: "Zou, Nanhai" <nanhai.zou@intel.com>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"Zhao, Jian J" <jian.j.zhao@intel.com>
Subject: Re: [PATCH] drm/i915/ringbuffer: set force wake bit before reading ring register
Date: Tue, 09 Nov 2010 10:50:29 +0000 [thread overview]
Message-ID: <0d30dc$k4cl2t@orsmga001.jf.intel.com> (raw)
In-Reply-To: <41EFD7A46E18724CAB128DAD0073348018EF9BD283@shsmsx502.ccr.corp.intel.com>
On Tue, 9 Nov 2010 17:17:07 +0800, "Zou, Nanhai" <nanhai.zou@intel.com> wrote:
> I have tested this patch with the read ring head from status page workaround patch reverted.
> Seems it works on my SNB box.
I needed to add a udelay(100) to i915_safe_read for my rev 8. Can you
check if there is a recommended delay for FORCEWAKE?
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2010-11-09 10:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-09 9:17 [PATCH] drm/i915/ringbuffer: set force wake bit before reading ring register Zou Nan hai
2010-11-09 9:17 ` Zou, Nanhai
2010-11-09 10:50 ` Chris Wilson [this message]
2010-11-10 0:36 ` Zou, Nanhai
2010-11-10 7:54 ` Chris Wilson
2010-11-10 18:47 ` Jesse Barnes
2010-11-17 22:52 ` (no subject) Thantry, Hariharan L
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