From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/4] arm64: gicv3: its: Increase FORCE_MAX_ZONEORDER for Cavium ThunderX
Date: Tue, 5 May 2015 11:53:29 +0100 [thread overview]
Message-ID: <20150505105329.GC1550@arm.com> (raw)
In-Reply-To: <1430686172-18222-5-git-send-email-rric@kernel.org>
On Sun, May 03, 2015 at 09:49:32PM +0100, Robert Richter wrote:
> From: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
>
> In case of ARCH_THUNDER, there is a need to allocate the GICv3 ITS table
> which is bigger than the allowed max order. So we are forcing it only in
> case of 4KB page size.
Does this problem disappear if the ITS driver uses dma_alloc_coherent
instead? That would also allow us to remove the __flush_dcache_area abuse
from the driver.
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: Robert Richter <rric@kernel.org>
Cc: Marc Zyngier <Marc.Zyngier@arm.com>,
Catalin Marinas <Catalin.Marinas@arm.com>,
Tirumalesh Chalamarla <tchalamarla@cavium.com>,
Radha Mohan Chintakuntla <rchintakuntla@cavium.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Robert Richter <rrichter@cavium.com>
Subject: Re: [PATCH 4/4] arm64: gicv3: its: Increase FORCE_MAX_ZONEORDER for Cavium ThunderX
Date: Tue, 5 May 2015 11:53:29 +0100 [thread overview]
Message-ID: <20150505105329.GC1550@arm.com> (raw)
In-Reply-To: <1430686172-18222-5-git-send-email-rric@kernel.org>
On Sun, May 03, 2015 at 09:49:32PM +0100, Robert Richter wrote:
> From: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
>
> In case of ARCH_THUNDER, there is a need to allocate the GICv3 ITS table
> which is bigger than the allowed max order. So we are forcing it only in
> case of 4KB page size.
Does this problem disappear if the ITS driver uses dma_alloc_coherent
instead? That would also allow us to remove the __flush_dcache_area abuse
from the driver.
Will
next prev parent reply other threads:[~2015-05-05 10:53 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-03 20:49 [PATCH 0/4] arm64: gicv3: its: Fixes and updates for ThunderX Robert Richter
2015-05-03 20:49 ` Robert Richter
2015-05-03 20:49 ` [PATCH 1/4] arm64: gicv3: its: Encode domain number in PCI stream id Robert Richter
2015-05-03 20:49 ` Robert Richter
2015-05-20 12:11 ` Marc Zyngier
2015-05-20 12:11 ` Marc Zyngier
2015-05-20 12:48 ` Robert Richter
2015-05-20 12:48 ` Robert Richter
2015-05-22 8:26 ` Marc Zyngier
2015-05-22 8:26 ` Marc Zyngier
2015-05-22 22:57 ` Chalamarla, Tirumalesh
2015-05-22 22:57 ` Chalamarla, Tirumalesh
2015-05-25 10:38 ` Marc Zyngier
2015-05-25 10:38 ` Marc Zyngier
2015-05-03 20:49 ` [PATCH 2/4] arm64: gicv3: its: Add range check for number of allocated pages Robert Richter
2015-05-03 20:49 ` Robert Richter
2015-05-20 12:14 ` Marc Zyngier
2015-05-20 12:14 ` Marc Zyngier
2015-05-03 20:49 ` [PATCH 3/4] arm64: gicv3: its: Read typer register outside the loop Robert Richter
2015-05-03 20:49 ` Robert Richter
2015-05-20 12:15 ` Marc Zyngier
2015-05-20 12:15 ` Marc Zyngier
2015-05-03 20:49 ` [PATCH 4/4] arm64: gicv3: its: Increase FORCE_MAX_ZONEORDER for Cavium ThunderX Robert Richter
2015-05-03 20:49 ` Robert Richter
2015-05-05 10:53 ` Will Deacon [this message]
2015-05-05 10:53 ` Will Deacon
2015-05-11 9:14 ` Robert Richter
2015-05-11 9:14 ` Robert Richter
2015-05-12 12:30 ` Will Deacon
2015-05-12 12:30 ` Will Deacon
2015-05-12 16:20 ` Robert Richter
2015-05-12 16:20 ` Robert Richter
2015-05-12 17:24 ` Will Deacon
2015-05-12 17:24 ` Will Deacon
2015-05-12 17:46 ` Robert Richter
2015-05-12 17:46 ` Robert Richter
2015-05-20 12:22 ` Marc Zyngier
2015-05-20 12:22 ` Marc Zyngier
2015-05-20 12:31 ` Robert Richter
2015-05-20 12:31 ` Robert Richter
2015-05-20 16:48 ` Catalin Marinas
2015-05-20 16:48 ` Catalin Marinas
2015-05-21 8:35 ` Marc Zyngier
2015-05-21 8:35 ` Marc Zyngier
2015-05-21 12:13 ` Robert Richter
2015-05-21 12:13 ` Robert Richter
2015-05-21 12:34 ` Marc Zyngier
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