From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
To: Sinan Kaya <okaya@codeaurora.org>
Cc: Tomasz Nowicki <tn@semihalf.com>,
helgaas@kernel.org, arnd@arndb.de, will.deacon@arm.com,
catalin.marinas@arm.com, rafael@kernel.org,
hanjun.guo@linaro.org, jiang.liu@linux.intel.com,
jchandra@broadcom.com, Stefano.Stabellini@eu.citrix.com,
robert.richter@caviumnetworks.com, mw@semihalf.com,
Liviu.Dudau@arm.com, ddaney@caviumnetworks.com,
wangyijing@huawei.com, Suravee.Suthikulpanit@amd.com,
msalter@redhat.com, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, linaro-acpi@lists.linaro.org,
jcm@redhat.com, yinghai@kernel.org
Subject: Re: [PATCH V5 00/15] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI
Date: Fri, 4 Mar 2016 17:37:50 +0000 [thread overview]
Message-ID: <20160304173750.GA15070@red-moon> (raw)
In-Reply-To: <56D9A121.9080508@codeaurora.org>
On Fri, Mar 04, 2016 at 09:52:17AM -0500, Sinan Kaya wrote:
[...]
> >> I could integrate the code implementing pci=realloc in patch 11 so
> >> that we realloc by default all resources claimed that failed (which
> >> means that bridges are resized accordingly and you won't be forced
> >> to use pci=realloc on command line).
> >>
> >
> > I agree with Lorenzo. Just because v3 works it does not mean we want to go this way. Also, I think we should realloc all resources claimed that failed, w/o need to use pci=realloc on command line.
> >
>
> Let's give this a try. I have seen the kernel messages with and
> without realloc option too. I don't want to see any kind of error
> messages if it is actually working.
I agree, claiming resources failures are too noisy, it is a pet-peeve
of mine too. The code to realloc resources is in the kernel already,
it is just a matter of defining how to use it (ie trigger it by default
without command line option - actually the kernel can be already
compiled to enable realloc by default, see CONFIG_PCI_REALLOC_ENABLE_AUTO),
that's why I added Yinghai to the thread, Bjorn and him have more
insights on how this has been used on current systems and I am really keen
on getting their opinion, they have more visibility into this than I do,
writing the patch itself should be simple enough.
Thanks !
Lorenzo
prev parent reply other threads:[~2016-03-04 17:37 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-16 13:53 [PATCH V5 00/15] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 01/15] ACPI: MCFG: Move mmcfg_list management to drivers/acpi Tomasz Nowicki
2016-02-17 11:00 ` Lorenzo Pieralisi
2016-02-18 12:25 ` [Linaro-acpi] " liudongdong (C)
2016-02-18 13:20 ` Lorenzo Pieralisi
2016-03-03 22:51 ` Bjorn Helgaas
2016-03-04 8:35 ` Jayachandran Chandrashekaran Nair
2016-03-05 4:14 ` Bjorn Helgaas
2016-03-09 9:13 ` Tomasz Nowicki
2016-03-09 9:14 ` Tomasz Nowicki
[not found] ` <CAKc_7PW3YMgT7h2MDpR31ysORJ-UjjbQmeD8qoDPw9fzEwPZTg@mail.gmail.com>
2016-03-09 10:50 ` Tomasz Nowicki
2016-04-05 14:11 ` Tomasz Nowicki
2016-04-05 16:41 ` Bjorn Helgaas
2016-04-05 18:07 ` Tomasz Nowicki
2016-03-04 9:27 ` Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 02/15] acpi, pci, mcfg: Provide default RAW ACPI PCI config space accessors Tomasz Nowicki
2016-02-17 12:39 ` Lorenzo Pieralisi
2016-02-16 13:53 ` [PATCH V5 03/15] arm64, acpi: Use MCFG library and empty PCI config space accessors from pci_mcfg.c file Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 04/15] pci, acpi, ecam: Add flag to indicate whether ECAM region was hot added or not Tomasz Nowicki
2016-02-18 12:32 ` Lorenzo Pieralisi
2016-02-16 13:53 ` [PATCH V5 05/15] x86, pci: Cleanup platform specific MCFG data by using ECAM hot_added flag Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 06/15] pci, acpi, x86, ia64: Move ACPI host bridge device companion assignment to core code Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 07/15] pci, acpi: Provide generic way to assign bus domain number Tomasz Nowicki
2016-02-17 13:44 ` Jayachandran Chandrashekaran Nair
2016-02-17 14:07 ` Tomasz Nowicki
2016-02-17 14:21 ` Jayachandran Chandrashekaran Nair
2016-02-17 15:05 ` Tomasz Nowicki
2016-02-17 15:21 ` Jayachandran Chandrashekaran Nair
2016-02-17 15:35 ` Tomasz Nowicki
2016-02-17 17:45 ` Lorenzo Pieralisi
2016-02-16 13:53 ` [PATCH V5 08/15] x86, ia64: Include acpi_pci_{add|remove}_bus to the default pcibios_{add|remove}_bus implementation Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 09/15] acpi, mcfg: Add default PCI config accessors implementation and initial support for related quirks Tomasz Nowicki
2016-02-17 18:39 ` Lorenzo Pieralisi
2016-02-16 13:53 ` [PATCH V5 10/15] pci, of: Move the PCI I/O space management to PCI core code Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 11/15] drivers: pci: add generic code to claim bus resources Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 12/15] pci, acpi: Support for ACPI based generic PCI host controller initialization Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 13/15] pci, acpi: Match PCI config space accessors against platfrom specific quirks Tomasz Nowicki
2016-03-18 15:49 ` Mark Salter
2016-03-22 10:26 ` Tomasz Nowicki
2016-02-16 13:53 ` [PATCH V5 14/15] arm64, pci, acpi: Assign legacy IRQs once device is enable Tomasz Nowicki
2016-02-17 18:18 ` Lorenzo Pieralisi
2016-02-16 13:53 ` [PATCH V5 15/15] arm64, pci, acpi: Start using ACPI based PCI host bridge driver for ARM64 Tomasz Nowicki
2016-02-18 12:59 ` [PATCH V5 00/15] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI Lorenzo Pieralisi
2016-02-29 19:03 ` Sinan Kaya
2016-03-03 11:23 ` Lorenzo Pieralisi
2016-03-03 14:24 ` Sinan Kaya
2016-03-04 10:55 ` Lorenzo Pieralisi
2016-03-04 12:01 ` Tomasz Nowicki
2016-03-04 14:52 ` Sinan Kaya
2016-03-04 17:37 ` Lorenzo Pieralisi [this message]
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