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Message-ID: <b692b9a9-d40f-4f87-b086-51f377b46cd6@csgroup.eu>
Date: Fri, 21 Mar 2025 09:43:49 +0100
From: Christophe Leroy <christophe.leroy@...roup.eu>
To: "Jiri Slaby (SUSE)" <jirislaby@...nel.org>, tglx@...utronix.de
Cc: maz@...nel.org, linux-kernel@...r.kernel.org,
Madhavan Srinivasan <maddy@...ux.ibm.com>,
Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>,
Naveen N Rao <naveen@...nel.org>, Anatolij Gustschin <agust@...x.de>,
Scott Wood <oss@...error.net>, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v2 32/57] irqdomain: ppc: Switch to irq_domain_create_*()
Le 19/03/2025 à 10:29, Jiri Slaby (SUSE) a écrit :
> irq_domain_add_*() interfaces are going away as being obsolete now.
> Switch to the preferred irq_domain_create_*() ones. Those differ in the
> node parameter: They take more generic struct fwnode_handle instead of
> struct device_node. Therefore, of_fwnode_handle() is added around the
> original parameter.
>
> Note some of the users can likely use dev->fwnode directly instead of
> indirect of_fwnode_handle(dev->of_node). But dev->fwnode is not
> guaranteed to be set for all, so this has to be investigated on case to
> case basis (by people who can actually test with the HW).
>
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@...nel.org>
> Cc: Madhavan Srinivasan <maddy@...ux.ibm.com>
> Cc: Michael Ellerman <mpe@...erman.id.au>
> Cc: Nicholas Piggin <npiggin@...il.com>
> Cc: Christophe Leroy <christophe.leroy@...roup.eu>
> Cc: Naveen N Rao <naveen@...nel.org>
> Cc: Anatolij Gustschin <agust@...x.de>
> Cc: Scott Wood <oss@...error.net>
> Cc: linuxppc-dev@...ts.ozlabs.org
Reviewed-by: Christophe Leroy <christophe.leroy@...roup.eu> # For 8xx
> ---
> arch/powerpc/platforms/44x/uic.c | 5 +++--
> arch/powerpc/platforms/512x/mpc5121_ads_cpld.c | 3 ++-
> arch/powerpc/platforms/52xx/media5200.c | 2 +-
> arch/powerpc/platforms/52xx/mpc52xx_gpt.c | 4 ++--
> arch/powerpc/platforms/52xx/mpc52xx_pic.c | 2 +-
> arch/powerpc/platforms/85xx/socrates_fpga_pic.c | 2 +-
> arch/powerpc/platforms/8xx/cpm1-ic.c | 3 ++-
> arch/powerpc/platforms/8xx/pic.c | 3 ++-
> arch/powerpc/platforms/embedded6xx/flipper-pic.c | 5 +++--
> arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 5 +++--
> arch/powerpc/platforms/powermac/pic.c | 5 +++--
> arch/powerpc/platforms/powernv/opal-irqchip.c | 3 ++-
> arch/powerpc/sysdev/cpm2_pic.c | 3 ++-
> arch/powerpc/sysdev/ehv_pic.c | 5 +++--
> arch/powerpc/sysdev/fsl_msi.c | 2 +-
> arch/powerpc/sysdev/ge/ge_pic.c | 5 +++--
> arch/powerpc/sysdev/i8259.c | 4 ++--
> arch/powerpc/sysdev/ipic.c | 5 +++--
> arch/powerpc/sysdev/mpic.c | 6 +++---
> arch/powerpc/sysdev/tsi108_pci.c | 4 ++--
> arch/powerpc/sysdev/xive/common.c | 2 +-
> 21 files changed, 45 insertions(+), 33 deletions(-)
>
> diff --git a/arch/powerpc/platforms/44x/uic.c b/arch/powerpc/platforms/44x/uic.c
> index 31f760c2ec5d..481ec25ce78f 100644
> --- a/arch/powerpc/platforms/44x/uic.c
> +++ b/arch/powerpc/platforms/44x/uic.c
> @@ -254,8 +254,9 @@ static struct uic * __init uic_init_one(struct device_node *node)
> }
> uic->dcrbase = *dcrreg;
>
> - uic->irqhost = irq_domain_add_linear(node, NR_UIC_INTS, &uic_host_ops,
> - uic);
> + uic->irqhost = irq_domain_create_linear(of_fwnode_handle(node),
> + NR_UIC_INTS, &uic_host_ops,
> + uic);
> if (! uic->irqhost)
> return NULL; /* FIXME: panic? */
>
> diff --git a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
> index e995eb30bf09..2cf3c6237337 100644
> --- a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
> +++ b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
> @@ -188,7 +188,8 @@ mpc5121_ads_cpld_pic_init(void)
>
> cpld_pic_node = of_node_get(np);
>
> - cpld_pic_host = irq_domain_add_linear(np, 16, &cpld_pic_host_ops, NULL);
> + cpld_pic_host = irq_domain_create_linear(of_fwnode_handle(np), 16,
> + &cpld_pic_host_ops, NULL);
> if (!cpld_pic_host) {
> printk(KERN_ERR "CPLD PIC: failed to allocate irq host!\n");
> goto end;
> diff --git a/arch/powerpc/platforms/52xx/media5200.c b/arch/powerpc/platforms/52xx/media5200.c
> index 19626cd42406..bc7f83cfec1d 100644
> --- a/arch/powerpc/platforms/52xx/media5200.c
> +++ b/arch/powerpc/platforms/52xx/media5200.c
> @@ -168,7 +168,7 @@ static void __init media5200_init_irq(void)
>
> spin_lock_init(&media5200_irq.lock);
>
> - media5200_irq.irqhost = irq_domain_add_linear(fpga_np,
> + media5200_irq.irqhost = irq_domain_create_linear(of_fwnode_handle(fpga_np),
> MEDIA5200_NUM_IRQS, &media5200_irq_ops, &media5200_irq);
> if (!media5200_irq.irqhost)
> goto out;
> diff --git a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
> index 1ea591ec6083..f042b21b2b73 100644
> --- a/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
> +++ b/arch/powerpc/platforms/52xx/mpc52xx_gpt.c
> @@ -247,9 +247,9 @@ mpc52xx_gpt_irq_setup(struct mpc52xx_gpt_priv *gpt, struct device_node *node)
> if (!cascade_virq)
> return;
>
> - gpt->irqhost = irq_domain_add_linear(node, 1, &mpc52xx_gpt_irq_ops, gpt);
> + gpt->irqhost = irq_domain_create_linear(of_fwnode_handle(node), 1, &mpc52xx_gpt_irq_ops, gpt);
> if (!gpt->irqhost) {
> - dev_err(gpt->dev, "irq_domain_add_linear() failed\n");
> + dev_err(gpt->dev, "irq_domain_create_linear() failed\n");
> return;
> }
>
> diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
> index 43c881d31ca6..7ec56d3788a9 100644
> --- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
> +++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
> @@ -446,7 +446,7 @@ void __init mpc52xx_init_irq(void)
> * As last step, add an irq host to translate the real
> * hw irq information provided by the ofw to linux virq
> */
> - mpc52xx_irqhost = irq_domain_add_linear(picnode,
> + mpc52xx_irqhost = irq_domain_create_linear(of_fwnode_handle(picnode),
> MPC52xx_IRQ_HIGHTESTHWIRQ,
> &mpc52xx_irqhost_ops, NULL);
>
> diff --git a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
> index 60e0b8947ce6..b4f6360830b1 100644
> --- a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
> +++ b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
> @@ -278,7 +278,7 @@ void __init socrates_fpga_pic_init(struct device_node *pic)
> int i;
>
> /* Setup an irq_domain structure */
> - socrates_fpga_pic_irq_host = irq_domain_add_linear(pic,
> + socrates_fpga_pic_irq_host = irq_domain_create_linear(of_fwnode_handle(pic),
> SOCRATES_FPGA_NUM_IRQS, &socrates_fpga_pic_host_ops, NULL);
> if (socrates_fpga_pic_irq_host == NULL) {
> pr_err("FPGA PIC: Unable to allocate host\n");
> diff --git a/arch/powerpc/platforms/8xx/cpm1-ic.c b/arch/powerpc/platforms/8xx/cpm1-ic.c
> index a18fc7c99f83..1549f6cd29f4 100644
> --- a/arch/powerpc/platforms/8xx/cpm1-ic.c
> +++ b/arch/powerpc/platforms/8xx/cpm1-ic.c
> @@ -110,7 +110,8 @@ static int cpm_pic_probe(struct platform_device *pdev)
>
> out_be32(&data->reg->cpic_cimr, 0);
>
> - data->host = irq_domain_add_linear(dev->of_node, 64, &cpm_pic_host_ops, data);
> + data->host = irq_domain_create_linear(of_fwnode_handle(dev->of_node),
> + 64, &cpm_pic_host_ops, data);
> if (!data->host)
> return -ENODEV;
>
> diff --git a/arch/powerpc/platforms/8xx/pic.c b/arch/powerpc/platforms/8xx/pic.c
> index ea6b0e523c60..7639f28172be 100644
> --- a/arch/powerpc/platforms/8xx/pic.c
> +++ b/arch/powerpc/platforms/8xx/pic.c
> @@ -146,7 +146,8 @@ void __init mpc8xx_pic_init(void)
> if (!siu_reg)
> goto out;
>
> - mpc8xx_pic_host = irq_domain_add_linear(np, 64, &mpc8xx_pic_host_ops, NULL);
> + mpc8xx_pic_host = irq_domain_create_linear(of_fwnode_handle(np), 64,
> + &mpc8xx_pic_host_ops, NULL);
> if (!mpc8xx_pic_host)
> printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n");
>
> diff --git a/arch/powerpc/platforms/embedded6xx/flipper-pic.c b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
> index 013d66304c31..a41649bf0cb8 100644
> --- a/arch/powerpc/platforms/embedded6xx/flipper-pic.c
> +++ b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
> @@ -149,8 +149,9 @@ static struct irq_domain * __init flipper_pic_init(struct device_node *np)
>
> __flipper_quiesce(io_base);
>
> - irq_domain = irq_domain_add_linear(np, FLIPPER_NR_IRQS,
> - &flipper_irq_domain_ops, io_base);
> + irq_domain = irq_domain_create_linear(of_fwnode_handle(np),
> + FLIPPER_NR_IRQS,
> + &flipper_irq_domain_ops, io_base);
> if (!irq_domain) {
> pr_err("failed to allocate irq_domain\n");
> return NULL;
> diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
> index 4d2d92de30af..9abb3da36ba5 100644
> --- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
> +++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
> @@ -175,8 +175,9 @@ static struct irq_domain *__init hlwd_pic_init(struct device_node *np)
>
> __hlwd_quiesce(io_base);
>
> - irq_domain = irq_domain_add_linear(np, HLWD_NR_IRQS,
> - &hlwd_irq_domain_ops, io_base);
> + irq_domain = irq_domain_create_linear(of_fwnode_handle(np),
> + HLWD_NR_IRQS,
> + &hlwd_irq_domain_ops, io_base);
> if (!irq_domain) {
> pr_err("failed to allocate irq_domain\n");
> iounmap(io_base);
> diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
> index 03a7c51f2645..2eddc8bff7ab 100644
> --- a/arch/powerpc/platforms/powermac/pic.c
> +++ b/arch/powerpc/platforms/powermac/pic.c
> @@ -327,8 +327,9 @@ static void __init pmac_pic_probe_oldstyle(void)
> /*
> * Allocate an irq host
> */
> - pmac_pic_host = irq_domain_add_linear(master, max_irqs,
> - &pmac_pic_host_ops, NULL);
> + pmac_pic_host = irq_domain_create_linear(of_fwnode_handle(master),
> + max_irqs,
> + &pmac_pic_host_ops, NULL);
> BUG_ON(pmac_pic_host == NULL);
> irq_set_default_domain(pmac_pic_host);
>
> diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c
> index d92759c21fae..e180bd8e1400 100644
> --- a/arch/powerpc/platforms/powernv/opal-irqchip.c
> +++ b/arch/powerpc/platforms/powernv/opal-irqchip.c
> @@ -191,7 +191,8 @@ int __init opal_event_init(void)
> * fall back to the legacy method (opal_event_request(...))
> * anyway. */
> dn = of_find_compatible_node(NULL, NULL, "ibm,opal-event");
> - opal_event_irqchip.domain = irq_domain_add_linear(dn, MAX_NUM_EVENTS,
> + opal_event_irqchip.domain = irq_domain_create_linear(of_fwnode_handle(dn),
> + MAX_NUM_EVENTS,
> &opal_event_domain_ops, &opal_event_irqchip);
> of_node_put(dn);
> if (!opal_event_irqchip.domain) {
> diff --git a/arch/powerpc/sysdev/cpm2_pic.c b/arch/powerpc/sysdev/cpm2_pic.c
> index e14493685fe8..c63d72f17a3e 100644
> --- a/arch/powerpc/sysdev/cpm2_pic.c
> +++ b/arch/powerpc/sysdev/cpm2_pic.c
> @@ -259,7 +259,8 @@ void cpm2_pic_init(struct device_node *node)
> out_be32(&cpm2_intctl->ic_scprrl, 0x05309770);
>
> /* create a legacy host */
> - cpm2_pic_host = irq_domain_add_linear(node, 64, &cpm2_pic_host_ops, NULL);
> + cpm2_pic_host = irq_domain_create_linear(of_fwnode_handle(node), 64,
> + &cpm2_pic_host_ops, NULL);
> if (cpm2_pic_host == NULL) {
> printk(KERN_ERR "CPM2 PIC: failed to allocate irq host!\n");
> return;
> diff --git a/arch/powerpc/sysdev/ehv_pic.c b/arch/powerpc/sysdev/ehv_pic.c
> index fb502b72fca1..4ee8d36ca647 100644
> --- a/arch/powerpc/sysdev/ehv_pic.c
> +++ b/arch/powerpc/sysdev/ehv_pic.c
> @@ -269,8 +269,9 @@ void __init ehv_pic_init(void)
> return;
> }
>
> - ehv_pic->irqhost = irq_domain_add_linear(np, NR_EHV_PIC_INTS,
> - &ehv_pic_host_ops, ehv_pic);
> + ehv_pic->irqhost = irq_domain_create_linear(of_fwnode_handle(np),
> + NR_EHV_PIC_INTS,
> + &ehv_pic_host_ops, ehv_pic);
> if (!ehv_pic->irqhost) {
> of_node_put(np);
> kfree(ehv_pic);
> diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c
> index 7b9a5ea9cad9..4fe8a7b1b288 100644
> --- a/arch/powerpc/sysdev/fsl_msi.c
> +++ b/arch/powerpc/sysdev/fsl_msi.c
> @@ -412,7 +412,7 @@ static int fsl_of_msi_probe(struct platform_device *dev)
> }
> platform_set_drvdata(dev, msi);
>
> - msi->irqhost = irq_domain_add_linear(dev->dev.of_node,
> + msi->irqhost = irq_domain_create_linear(of_fwnode_handle(dev->dev.of_node),
> NR_MSI_IRQS_MAX, &fsl_msi_host_ops, msi);
>
> if (msi->irqhost == NULL) {
> diff --git a/arch/powerpc/sysdev/ge/ge_pic.c b/arch/powerpc/sysdev/ge/ge_pic.c
> index a6c424680c37..5b1f8dc3c960 100644
> --- a/arch/powerpc/sysdev/ge/ge_pic.c
> +++ b/arch/powerpc/sysdev/ge/ge_pic.c
> @@ -214,8 +214,9 @@ void __init gef_pic_init(struct device_node *np)
> }
>
> /* Setup an irq_domain structure */
> - gef_pic_irq_host = irq_domain_add_linear(np, GEF_PIC_NUM_IRQS,
> - &gef_pic_host_ops, NULL);
> + gef_pic_irq_host = irq_domain_create_linear(of_fwnode_handle(np),
> + GEF_PIC_NUM_IRQS,
> + &gef_pic_host_ops, NULL);
> if (gef_pic_irq_host == NULL)
> return;
>
> diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
> index 06e391485da7..99bb2b916949 100644
> --- a/arch/powerpc/sysdev/i8259.c
> +++ b/arch/powerpc/sysdev/i8259.c
> @@ -260,8 +260,8 @@ void i8259_init(struct device_node *node, unsigned long intack_addr)
> raw_spin_unlock_irqrestore(&i8259_lock, flags);
>
> /* create a legacy host */
> - i8259_host = irq_domain_add_legacy(node, NR_IRQS_LEGACY, 0, 0,
> - &i8259_host_ops, NULL);
> + i8259_host = irq_domain_create_legacy(of_fwnode_handle(node), NR_IRQS_LEGACY, 0, 0,
> + &i8259_host_ops, NULL);
> if (i8259_host == NULL) {
> printk(KERN_ERR "i8259: failed to allocate irq host !\n");
> return;
> diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
> index a35be0232978..f7b415ebb71c 100644
> --- a/arch/powerpc/sysdev/ipic.c
> +++ b/arch/powerpc/sysdev/ipic.c
> @@ -711,8 +711,9 @@ struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
> if (ipic == NULL)
> return NULL;
>
> - ipic->irqhost = irq_domain_add_linear(node, NR_IPIC_INTS,
> - &ipic_host_ops, ipic);
> + ipic->irqhost = irq_domain_create_linear(of_fwnode_handle(node),
> + NR_IPIC_INTS,
> + &ipic_host_ops, ipic);
> if (ipic->irqhost == NULL) {
> kfree(ipic);
> return NULL;
> diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
> index 4afbab83a2e2..3de090159a1b 100644
> --- a/arch/powerpc/sysdev/mpic.c
> +++ b/arch/powerpc/sysdev/mpic.c
> @@ -1483,9 +1483,9 @@ struct mpic * __init mpic_alloc(struct device_node *node,
> mpic->isu_shift = 1 + __ilog2(mpic->isu_size - 1);
> mpic->isu_mask = (1 << mpic->isu_shift) - 1;
>
> - mpic->irqhost = irq_domain_add_linear(mpic->node,
> - intvec_top,
> - &mpic_host_ops, mpic);
> + mpic->irqhost = irq_domain_create_linear(of_fwnode_handle(mpic->node),
> + intvec_top,
> + &mpic_host_ops, mpic);
>
> /*
> * FIXME: The code leaks the MPIC object and mappings here; this
> diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
> index 0e42f7bad7db..07d0f6a83879 100644
> --- a/arch/powerpc/sysdev/tsi108_pci.c
> +++ b/arch/powerpc/sysdev/tsi108_pci.c
> @@ -404,8 +404,8 @@ void __init tsi108_pci_int_init(struct device_node *node)
> {
> DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
>
> - pci_irq_host = irq_domain_add_legacy(node, NR_IRQS_LEGACY, 0, 0,
> - &pci_irq_domain_ops, NULL);
> + pci_irq_host = irq_domain_create_legacy(of_fwnode_handle(node), NR_IRQS_LEGACY, 0, 0,
> + &pci_irq_domain_ops, NULL);
> if (pci_irq_host == NULL) {
> printk(KERN_ERR "pci_irq_host: failed to allocate irq domain!\n");
> return;
> diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
> index dc2e61837396..f10592405024 100644
> --- a/arch/powerpc/sysdev/xive/common.c
> +++ b/arch/powerpc/sysdev/xive/common.c
> @@ -1464,7 +1464,7 @@ static const struct irq_domain_ops xive_irq_domain_ops = {
>
> static void __init xive_init_host(struct device_node *np)
> {
> - xive_irq_domain = irq_domain_add_tree(np, &xive_irq_domain_ops, NULL);
> + xive_irq_domain = irq_domain_create_tree(of_fwnode_handle(np), &xive_irq_domain_ops, NULL);
> if (WARN_ON(xive_irq_domain == NULL))
> return;
> irq_set_default_domain(xive_irq_domain);
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