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From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
	Will Deacon <will.deacon@arm.com>,
	Liviu Dudau <liviu.dudau@arm.com>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Jason Cooper <jason@lakedaemon.net>,
	Thomas Gleixner <tglx@linutronix.de>,
	Rob Herring <robh+dt@kernel.org>,
	linux-arm <linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Subject: Re: [RFC 3/4] arm64: Do not call enable PCI resources when specify PCI_PROBE_ONLY
Date: Wed, 24 Jun 2015 08:34:28 +1000	[thread overview]
Message-ID: <1435098868.3996.11.camel@kernel.crashing.org> (raw)
In-Reply-To: <CAErSpo6SngcV6_Ew0DOjW+xTw8y6j3UmwdPw1x-tk_AB=mapaQ@mail.gmail.com>

On Mon, 2014-09-29 at 12:17 -0600, Bjorn Helgaas wrote:
> This seems like more than necessary, but I don't know all the history.
> In particular, I don't know why PCI_PROBE_ONLY should make a
> difference to things like claiming resources.

It shouldn't ... we created that option on ppc originally to avoid
allocation/reallocation of resources. If they are bad, leave them bad,
but it was never a question of disabling all these other things.

(Ok, the MRSS/MPS is debatable, but why not plumb the parent pointers
and why not claim ? That doesn't make sense to me).

Cheers,
Ben.


  reply	other threads:[~2015-06-23 22:52 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-28 20:53 [RFC 0/4] Add PCI/MSI(x) support for AMD Seattle Platform suravee.suthikulpanit
2014-09-28 20:53 ` [RFC 1/4] arm64: amd-seattle: Adding device tree for AMD Seattle platform suravee.suthikulpanit
2014-10-10 13:45   ` Mark Rutland
2014-10-24 12:08     ` Suravee Suthikulpanit
2014-09-28 20:53 ` [RFC 2/4] PCI: generic: Add support for ARM64 and MSI(x) suravee.suthikulpanit
2014-09-29 14:36   ` Arnd Bergmann
2014-09-30 12:03     ` Lorenzo Pieralisi
2014-09-30 12:31       ` Arnd Bergmann
2014-09-30 16:12         ` Lorenzo Pieralisi
2014-09-30 16:42           ` Liviu Dudau
2014-09-30 17:35             ` Lorenzo Pieralisi
2014-09-30 17:48               ` Liviu Dudau
2014-09-30 18:54                 ` Arnd Bergmann
2014-09-30 20:01                   ` Arnd Bergmann
2014-10-01  8:46                     ` Liviu Dudau
2014-10-01  9:38                       ` Arnd Bergmann
2014-10-07 12:06                         ` Lorenzo Pieralisi
2014-10-07 13:52                           ` Arnd Bergmann
2014-10-07 14:47                             ` Lorenzo Pieralisi
2014-10-07 21:39                               ` Arnd Bergmann
2014-10-08 10:19                                 ` Lorenzo Pieralisi
2014-10-08 14:47                                   ` Arnd Bergmann
2014-10-09  9:04                                     ` Lorenzo Pieralisi
2014-10-09 10:51                                       ` Arnd Bergmann
2014-10-10 13:58                                         ` Lorenzo Pieralisi
2014-10-10 18:31                                           ` Arnd Bergmann
2014-10-13  9:36                                             ` Lorenzo Pieralisi
2014-10-22 15:59                         ` Lorenzo Pieralisi
2014-10-22 16:49                           ` Bjorn Helgaas
2014-10-22 20:52                           ` Arnd Bergmann
2014-10-23  9:13                             ` Liviu Dudau
2014-10-23 11:27                               ` Lorenzo Pieralisi
2014-10-23 16:52                                 ` Jason Gunthorpe
2014-10-27 16:10                                   ` Lorenzo Pieralisi
2014-10-23 13:33                               ` Arnd Bergmann
2014-10-24 10:04                                 ` Liviu Dudau
2014-11-05 23:40                                 ` Bjorn Helgaas
2014-11-06  0:06                                   ` Arnd Bergmann
2014-12-29 19:32                                 ` Suravee Suthikulpanit
2015-01-02 11:55                                   ` Lorenzo Pieralisi
2015-01-02 18:18                                     ` Suravee Suthikulanit
2015-01-02 21:09                                       ` Arnd Bergmann
2015-01-05 14:48                                         ` Lorenzo Pieralisi
2014-11-05 23:39                             ` Bjorn Helgaas
2014-11-06  0:05                               ` Arnd Bergmann
2014-11-06  9:52                                 ` Lorenzo Pieralisi
2014-09-29 19:19   ` Sunil Kovvuri
2014-09-28 20:53 ` [RFC 3/4] arm64: Do not call enable PCI resources when specify PCI_PROBE_ONLY suravee.suthikulpanit
2014-09-29 14:38   ` Arnd Bergmann
2014-09-29 18:17   ` Bjorn Helgaas
2015-06-23 22:34     ` Benjamin Herrenschmidt [this message]
2015-06-23 23:05       ` Russell King - ARM Linux
2015-06-23 22:32   ` Benjamin Herrenschmidt
2014-09-28 20:53 ` [RFC 4/4] irqchip: gicv2m: Add supports for ARM GICv2m MSI(-X) suravee.suthikulpanit
2014-09-28 21:35   ` Suravee Suthikulpanit
2014-09-29 14:23     ` Thomas Gleixner
2014-09-29 14:42   ` Arnd Bergmann

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