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From: Jon Masters <jcm@redhat.com>
To: Gabriele Paoloni <gabriele.paoloni@huawei.com>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Tomasz Nowicki <tn@semihalf.com>,
	"helgaas@kernel.org" <helgaas@kernel.org>,
	"arnd@arndb.de" <arnd@arndb.de>,
	"will.deacon@arm.com" <will.deacon@arm.com>,
	"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
	"rafael@kernel.org" <rafael@kernel.org>,
	"hanjun.guo@linaro.org" <hanjun.guo@linaro.org>,
	"Lorenzo.Pieralisi@arm.com" <Lorenzo.Pieralisi@arm.com>,
	"okaya@codeaurora.org" <okaya@codeaurora.org>,
	"jchandra@broadcom.com" <jchandra@broadcom.com>,
	"linaro-acpi@lists.linaro.org" <linaro-acpi@lists.linaro.org>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"dhdang@apm.com" <dhdang@apm.com>,
	"Liviu.Dudau@arm.com" <Liviu.Dudau@arm.com>,
	"ddaney@caviumnetworks.com" <ddaney@caviumnetworks.com>,
	"jeremy.linton@arm.com" <jeremy.linton@arm.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
	"robert.richter@caviumnetworks.com"
	<robert.richter@caviumnetworks.com>,
	"Suravee.Suthikulpanit@amd.com" <Suravee.Suthikulpanit@amd.com>,
	"msalter@redhat.com" <msalter@redhat.com>,
	Wangyijing <wangyijing@huawei.com>,
	"mw@semihalf.com" <mw@semihalf.com>,
	"andrea.gallo@linaro.org" <andrea.gallo@linaro.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH V7 00/11] Support for generic ACPI based PCI host controller
Date: Fri, 20 May 2016 04:24:18 -0400	[thread overview]
Message-ID: <9a9d2e00-efb4-2607-a410-43af1d3c97c3@redhat.com> (raw)
In-Reply-To: <EE11001F9E5DDD47B7634E2F8A612F2E1EDAF540@lhreml503-mbs>

On 05/20/2016 04:11 AM, Gabriele Paoloni wrote:
> Hi Ard, Jon

Hi Gabriele :)

> In our case (HiSilicon Hip05/Hip06) we are using the Designware IP
> that unfortunately is non-ECAM for the RC config space.

Yea, I know, and I've pinged them already.

> A possible ACPI table solution was discussed already in this thread
> 
> https://lkml.org/lkml/2016/3/14/722
> 
> where <<Name (_CID, "PNP0C02")  // Motherboard reserved resource>>
> is used to specify an Host Controller specific resource.
> It looks to me that this can be an approach that can accommodate
> different vendors/scenarios and Bjorn seemed to be quite ok with
> it.

Yeah, pondering that. We'll chat with a few others about it.

> It comes without saying that for future HW releases we all should
> make an effort to deliver fully ECAM compliant controllers.

Right. Like I said, a number of designs have been fixed already.

> What's your view about this approach?

Will followup over the weekend.

Jon.

-- 
Computer Architect | Sent from my Fedora powered laptop

  reply	other threads:[~2016-05-20  8:24 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-10 15:19 [PATCH V7 00/11] Support for generic ACPI based PCI host controller Tomasz Nowicki
2016-05-10 15:19 ` [PATCH V7 01/11] PCI: Provide common functions for ECAM mapping Tomasz Nowicki
2016-05-10 15:19 ` [PATCH V7 02/11] PCI: generic, thunder: update to use generic ECAM API Tomasz Nowicki
2016-05-10 15:19 ` [PATCH V7 03/11] pci, of: Move the PCI I/O space management to PCI core code Tomasz Nowicki
2016-05-10 17:59   ` Rafael J. Wysocki
2016-05-11  7:36     ` Tomasz Nowicki
2016-05-11 11:01       ` Arnd Bergmann
2016-05-10 15:19 ` [PATCH V7 04/11] pci: Add new function to unmap IO resources Tomasz Nowicki
2016-05-23  8:28   ` Jayachandran C
2016-05-10 15:19 ` [PATCH V7 05/11] acpi, pci: Support IO resources when parsing PCI host bridge resources Tomasz Nowicki
2016-05-10 18:20   ` Rafael J. Wysocki
2016-05-11  7:39     ` Tomasz Nowicki
2016-05-10 15:19 ` [PATCH V7 06/11] pci, acpi: Provide a way to assign bus domain number Tomasz Nowicki
2016-05-10 15:19 ` [PATCH V7 07/11] pci, acpi: Handle ACPI companion assignment Tomasz Nowicki
2016-05-10 18:37   ` Rafael J. Wysocki
2016-05-10 18:43     ` Rafael J. Wysocki
2016-05-11 10:11     ` Lorenzo Pieralisi
2016-05-11 20:30       ` Rafael J. Wysocki
2016-05-11 22:43         ` Bjorn Helgaas
2016-05-12 10:01           ` Lorenzo Pieralisi
2016-05-12 10:43           ` Jayachandran C
2016-05-12 11:27             ` Rafael J. Wysocki
2016-05-13 10:32               ` Lorenzo Pieralisi
2016-05-12 10:50           ` Tomasz Nowicki
2016-05-12 12:08             ` Bjorn Helgaas
2016-05-17  3:11   ` Dongdong Liu
2016-05-17 13:44     ` Tomasz Nowicki
2016-05-10 15:19 ` [PATCH V7 08/11] pci, acpi: Support for ACPI based generic PCI host controller Tomasz Nowicki
2016-05-10 17:54   ` Rafael J. Wysocki
2016-05-10 18:18   ` Rafael J. Wysocki
2016-05-13 11:25   ` Jayachandran C
2016-05-13 11:31     ` Rafael J. Wysocki
2016-05-13 11:42       ` Tomasz Nowicki
2016-05-14  9:07   ` Jayachandran C
2016-05-23 11:34     ` Tomasz Nowicki
2016-05-19 16:56   ` Matthias Brugger
2016-05-10 15:19 ` [PATCH V7 09/11] arm64, pci, acpi: ACPI support for legacy IRQs parsing and consolidation with DT code Tomasz Nowicki
2016-05-10 15:20 ` [PATCH V7 10/11] arm64, pci, acpi: Provide ACPI-specific prerequisites for PCI bus enumeration Tomasz Nowicki
2016-05-10 15:20 ` [PATCH V7 11/11] arm64, pci, acpi: Start using ACPI based PCI host controller driver for ARM64 Tomasz Nowicki
2016-05-11 10:41 ` [PATCH V7 00/11] Support for generic ACPI based PCI host controller Gabriele Paoloni
2016-05-11 11:08   ` Tomasz Nowicki
2016-05-11 12:53     ` Gabriele Paoloni
2016-05-20  4:41     ` Jon Masters
2016-05-20  7:37       ` Ard Biesheuvel
2016-05-20  8:01         ` Jon Masters
2016-05-20  8:28           ` Ard Biesheuvel
2016-05-20  8:40             ` Gabriele Paoloni
2016-05-20  9:14               ` Ard Biesheuvel
2016-05-23 10:56                 ` Lorenzo Pieralisi
2016-05-23 15:16                   ` Gabriele Paoloni
2016-05-23 23:39                     ` Bjorn Helgaas
2016-05-24  1:11                       ` Jon Masters
2016-05-24  1:48                         ` Jon Masters
2016-05-24 14:33                         ` Gabriele Paoloni
2016-05-24  7:23                       ` Gabriele Paoloni
2016-05-24 14:38                         ` Jon Masters
2016-05-24 17:24                       ` Lorenzo Pieralisi
2016-05-24 17:35                         ` Jon Masters
2016-05-24 19:00                         ` Bjorn Helgaas
2016-05-26  9:58                           ` Gabriele Paoloni
2016-05-25  6:31                         ` Gabriele Paoloni
2016-05-24  4:20                   ` Jon Masters
2016-05-20  8:11         ` Gabriele Paoloni
2016-05-20  8:24           ` Jon Masters [this message]
2016-05-13  2:55 ` Duc Dang
2016-05-19 18:18 ` Jeremy Linton
2016-05-20  7:46 ` Jon Masters
2016-05-23 11:25 ` Dongdong Liu
2016-05-23 15:36 ` Sinan Kaya

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