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Re: [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor its_pmsi_init() to prepare for ACPI

From Tomasz Nowicki <tn@semihalf.com>
Newsgroups linux.kernel
Subject Re: [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor its_pmsi_init() to prepare for ACPI
Date 2017-01-03 08:50 +0100
Message-ID <sVs13-2TD-1@gated-at.bofh.it> (permalink)
References <sVb0d-7pH-3@gated-at.bofh.it> <sVb0e-7pH-21@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi,

Can we merge patch 4 & 6 into one patch so that we keep refactoring part 
as one piece ? I do not see a reason to keep them separate or have patch 
5 in between. You can refactor what needs to be refactored, add 
necessary functions to iort.c and then support ACPI for 
irq-gic-v3-its-platform-msi.c

Thanks,
Tomasz

On 02.01.2017 14:31, Hanjun Guo wrote:
> Introduce its_pmsi_init_one() to refactor the code to isolate
> ACPI&DT common code to prepare for ACPI later.
>
> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
> Tested-by: Sinan Kaya <okaya@codeaurora.org>
> Tested-by: Majun <majun258@huawei.com>
> Tested-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
> Cc: Marc Zyngier <marc.zyngier@arm.com>
> Cc: Tomasz Nowicki <tn@semihalf.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> ---
>  drivers/irqchip/irq-gic-v3-its-platform-msi.c | 45 ++++++++++++++++-----------
>  1 file changed, 27 insertions(+), 18 deletions(-)
>
> diff --git a/drivers/irqchip/irq-gic-v3-its-platform-msi.c b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
> index 16587a9..ff72704 100644
> --- a/drivers/irqchip/irq-gic-v3-its-platform-msi.c
> +++ b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
> @@ -84,34 +84,43 @@ static int its_pmsi_prepare(struct irq_domain *domain, struct device *dev,
>  	{},
>  };
>
> -static int __init its_pmsi_init(void)
> +static int __init its_pmsi_init_one(struct fwnode_handle *fwnode,
> +				const char *name)
>  {
> -	struct device_node *np;
>  	struct irq_domain *parent;
>
> +	parent = irq_find_matching_fwnode(fwnode, DOMAIN_BUS_NEXUS);
> +	if (!parent || !msi_get_domain_info(parent)) {
> +		pr_err("%s: unable to locate ITS domain\n", name);
> +		return -ENXIO;
> +	}
> +
> +	if (!platform_msi_create_irq_domain(fwnode, &its_pmsi_domain_info,
> +					    parent)) {
> +		pr_err("%s: unable to create platform domain\n", name);
> +		return -ENXIO;
> +	}
> +
> +	pr_info("Platform MSI: %s domain created\n", name);
> +	return 0;
> +}
> +
> +static void __init its_pmsi_of_init(void)
> +{
> +	struct device_node *np;
> +
>  	for (np = of_find_matching_node(NULL, its_device_id); np;
>  	     np = of_find_matching_node(np, its_device_id)) {
>  		if (!of_property_read_bool(np, "msi-controller"))
>  			continue;
>
> -		parent = irq_find_matching_host(np, DOMAIN_BUS_NEXUS);
> -		if (!parent || !msi_get_domain_info(parent)) {
> -			pr_err("%s: unable to locate ITS domain\n",
> -			       np->full_name);
> -			continue;
> -		}
> -
> -		if (!platform_msi_create_irq_domain(of_node_to_fwnode(np),
> -						    &its_pmsi_domain_info,
> -						    parent)) {
> -			pr_err("%s: unable to create platform domain\n",
> -			       np->full_name);
> -			continue;
> -		}
> -
> -		pr_info("Platform MSI: %s domain created\n", np->full_name);
> +		its_pmsi_init_one(of_node_to_fwnode(np), np->full_name);
>  	}
> +}
>
> +static int __init its_pmsi_init(void)
> +{
> +	its_pmsi_of_init();
>  	return 0;
>  }
>  early_initcall(its_pmsi_init);
>

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Thread

[PATCH v6 00/14] ACPI platform MSI support and its example mbigen Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
  [PATCH v6 04/14] irqchip: gicv3-its: platform-msi: refactor its_pmsi_prepare() Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
    Re: [PATCH v6 04/14] irqchip: gicv3-its: platform-msi: refactor  its_pmsi_prepare() Matthias Brugger <mbrugger@suse.com> - 2017-01-11 11:40 +0100
  [PATCH v6 08/14] ACPI: ARM64: IORT: rework iort_node_get_id() Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
    Re: [PATCH v6 08/14] ACPI: ARM64: IORT: rework iort_node_get_id() Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-01-04 19:00 +0100
      Re: [PATCH v6 08/14] ACPI: ARM64: IORT: rework iort_node_get_id() Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-05 09:30 +0100
  [PATCH v6 09/14] ACPI: platform: setup MSI domain for ACPI based platform device Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
    Re: [PATCH v6 09/14] ACPI: platform: setup MSI domain for ACPI based  platform device "Rafael J. Wysocki" <rafael@kernel.org> - 2017-01-02 22:20 +0100
  [PATCH v6 13/14] irqchip: mbigen: introduce mbigen_of_create_domain() Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
  [PATCH v6 14/14] irqchip: mbigen: Add ACPI support Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
  [PATCH v6 01/14] ACPI: ARM64: IORT: minor cleanup for iort_match_node_callback() Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
    Re: [PATCH v6 01/14] ACPI: ARM64: IORT: minor cleanup for  iort_match_node_callback() Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-01-03 15:10 +0100
      Re: [PATCH v6 01/14] ACPI: ARM64: IORT: minor cleanup for  iort_match_node_callback() Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-04 09:00 +0100
  [PATCH v6 12/14] irqchip: mbigen: drop module owner Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
  [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
    Re: [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Tomasz Nowicki <tn@semihalf.com> - 2017-01-03 09:50 +0100
      Re: [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Tomasz Nowicki <tn@semihalf.com> - 2017-01-03 10:40 +0100
        Re: [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Tomasz Nowicki <tn@semihalf.com> - 2017-01-03 12:30 +0100
    Re: [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-01-04 20:20 +0100
      Re: [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-05 13:50 +0100
        Re: [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-01-05 16:20 +0100
          Re: [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> - 2017-01-10 16:00 +0100
            Re: [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-11 15:20 +0100
          Re: [PATCH v6 05/14] ACPI: platform-msi: retrieve dev id from IORT Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-10 16:20 +0100
  [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor its_pmsi_init() to prepare for ACPI Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
    Re: [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor  its_pmsi_init() to prepare for ACPI Tomasz Nowicki <tn@semihalf.com> - 2017-01-03 08:50 +0100
      Re: [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor  its_pmsi_init() to prepare for ACPI Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-04 08:10 +0100
        Re: [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor  its_pmsi_init() to prepare for ACPI Tomasz Nowicki <tn@semihalf.com> - 2017-01-04 08:30 +0100
          Re: [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor  its_pmsi_init() to prepare for ACPI Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-04 09:30 +0100
            Re: [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor  its_pmsi_init() to prepare for ACPI Marc Zyngier <marc.zyngier@arm.com> - 2017-01-04 10:10 +0100
              Re: [PATCH v6 06/14] irqchip: gicv3-its: platform-msi: refactor  its_pmsi_init() to prepare for ACPI Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-04 11:30 +0100
  [PATCH v6 02/14] irqchip: gic-v3-its: keep the head file include in alphabetic order Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
    Re: [PATCH v6 02/14] irqchip: gic-v3-its: keep the head file include  in alphabetic order Matthias Brugger <matthias.bgg@gmail.com> - 2017-01-11 11:30 +0100
    Re: [PATCH v6 02/14] irqchip: gic-v3-its: keep the head file include  in alphabetic order Matthias Brugger <mbrugger@suse.com> - 2017-01-11 11:30 +0100
      Re: [PATCH v6 02/14] irqchip: gic-v3-its: keep the head file include  in alphabetic order Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-11 15:20 +0100
  [PATCH v6 07/14] irqchip: gicv3-its: platform-msi: scan MADT to create platform msi domain Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
  [PATCH v6 10/14] ACPI: ARM64: IORT: rework iort_node_get_id() for NC->SMMU->ITS case Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-02 14:40 +0100
    Re: [PATCH v6 10/14] ACPI: ARM64: IORT: rework iort_node_get_id() for  NC->SMMU->ITS case Sinan Kaya <okaya@codeaurora.org> - 2017-01-02 23:40 +0100
      Re: [PATCH v6 10/14] ACPI: ARM64: IORT: rework iort_node_get_id()  for NC->SMMU->ITS case Hanjun Guo <hanjun.guo@linaro.org> - 2017-01-03 01:20 +0100

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