From: Peter Zijlstra <peterz@infradead.org>
To: Reinette Chatre <reinette.chatre@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
fenghua.yu@intel.com, Tony Luck <tony.luck@intel.com>,
vikas.shivappa@linux.intel.com, gavin.hindman@intel.com,
jithu.joseph@intel.com, dave.hansen@intel.com, mingo@redhat.com,
"H. Peter Anvin" <hpa@zytor.com>,
x86@kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC PATCH 0/7] x86/intel_rdt: Restoration of Cache Pseudo-Locked regions
Date: Fri, 3 Aug 2018 17:51:31 +0200 [thread overview]
Message-ID: <20180803155131.GZ2476@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <05a621ec-adce-42b1-ea99-3bd8bac00e16@intel.com>
On Fri, Aug 03, 2018 at 08:40:25AM -0700, Reinette Chatre wrote:
> > Can we just get rid of WBINVD?
>
> While directed at me I am not able to answer this. native_wbinvd() is
> used in a few areas that appear important to me.
Some, like the crusty AGP gart or boot time mem_encrypt usage is fine,
the former nobody cares about, the latter is not interresting because
boot-time.
But others like the drm_cache usage is utter nonense and should really
be replaced like we already do in cpa_flush_array() for PREEMPT, and
this should really be made unconditional.
prev parent reply other threads:[~2018-08-03 15:51 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-24 20:40 [RFC PATCH 0/7] x86/intel_rdt: Restoration of Cache Pseudo-Locked regions Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 1/7] x86/intel_rdt: Expose useful functions to all RDT code Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 2/7] x86/intel_rdt: Enable a pseudo-locked region to be restored Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 3/7] x86/intel_rdt: Enable user to trigger pseudo-locked region restore Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 4/7] x86/intel_rdt: Support restore of all pseudo-locked regions Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 5/7] x86/intel_rdt: Trigger pseudo-lock restore after wbinvd call Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 6/7] mtd: replace direct wbinvd invoke with kernel api Reinette Chatre
2018-07-24 20:40 ` [RFC PATCH 7/7] video: fbdev: i810: " Reinette Chatre
2018-08-03 11:45 ` [RFC PATCH 0/7] x86/intel_rdt: Restoration of Cache Pseudo-Locked regions Thomas Gleixner
2018-08-03 14:23 ` Dave Hansen
2018-08-03 14:48 ` Peter Zijlstra
2018-08-03 15:40 ` Reinette Chatre
2018-08-03 15:51 ` Peter Zijlstra [this message]
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