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From: Ralf Baechle <ralf@linux-mips.org>
To: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>,
	Ohad Ben-Cohen <ohad@wizery.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-mips@linux-mips.org, linux-remoteproc@vger.kernel.org,
	lisa.parratt@imgtec.com, linux-kernel@vger.kernel.org,
	Hugh Dickins <hughd@google.com>, Huacai Chen <chenhc@lemote.com>,
	"David S. Miller" <davem@davemloft.net>,
	James Hogan <james.hogan@imgtec.com>,
	Paul Burton <paul.burton@imgtec.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v2 2/6] MIPS: tlb-r4k: If there are wired entries, don't use TLBINVF
Date: Thu, 22 Sep 2016 14:11:37 +0200	[thread overview]
Message-ID: <20160922121136.GA12981@linux-mips.org> (raw)
In-Reply-To: <1474361249-31064-3-git-send-email-matt.redfearn@imgtec.com>

On Tue, Sep 20, 2016 at 09:47:25AM +0100, Matt Redfearn wrote:

> When adding a wired entry to the TLB via add_wired_entry, the tlb is
> flushed with local_flush_tlb_all, which on CPUs with TLBINV results in
> the new wired entry being flushed again.
> 
> Behavior of the TLBINV instruction applies to all applicable TLB entries
> and is unaffected by the setting of the Wired register. Therefore if
> the TLB has any wired entries, fall back to iterating over the entries
> rather than blasting them all using TLBINVF.
> 
> Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>

Queued for 4.9..

  Ralf

  reply	other threads:[~2016-09-22 12:11 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-20  8:47 [PATCH v2 0/6] MIPS: Remote processor driver Matt Redfearn
2016-09-20  8:47 ` Matt Redfearn
2016-09-20  8:47 ` [PATCH v2 1/6] irqchip: mips-gic: Add context saving for MIPS_REMOTEPROC Matt Redfearn
2016-09-20  8:47   ` Matt Redfearn
2016-09-20  9:40   ` Thomas Gleixner
2016-09-20  8:47 ` [PATCH v2 2/6] MIPS: tlb-r4k: If there are wired entries, don't use TLBINVF Matt Redfearn
2016-09-20  8:47   ` Matt Redfearn
2016-09-22 12:11   ` Ralf Baechle [this message]
2016-09-20  8:47 ` [PATCH v2 3/6] MIPS: smp.c: Introduce mechanism for freeing and allocating IPIs Matt Redfearn
2016-09-20  8:47   ` Matt Redfearn
2016-09-20  8:47 ` [PATCH v2 4/6] MIPS: CPS: Add VP(E) stealing Matt Redfearn
2016-09-20  8:47   ` Matt Redfearn
2016-09-20  8:47 ` [PATCH v2 5/6] remoteproc/MIPS: Add a remoteproc driver for MIPS Matt Redfearn
2016-09-20  8:47   ` Matt Redfearn
2016-09-20  9:47   ` Thomas Gleixner
2016-09-20 15:31     ` Matt Redfearn
2016-09-20 15:31       ` Matt Redfearn
2016-10-03  8:35   ` Matt Redfearn
2016-10-03  8:35     ` Matt Redfearn
2016-10-03  8:35     ` Matt Redfearn
2016-10-03 22:16   ` Bjorn Andersson
2016-10-05 16:22     ` Matt Redfearn
2016-10-05 16:22       ` Matt Redfearn
2016-09-20  8:47 ` [PATCH v2 6/6] MIPS: Deprecate VPE Loader Matt Redfearn
2016-09-20  8:47   ` Matt Redfearn
2016-09-20 10:25   ` Sergei Shtylyov
2016-09-20 13:19   ` Ralf Baechle
2016-09-20 13:53     ` Matt Redfearn
2016-09-20 13:53       ` Matt Redfearn

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