Date: Tue, 18 Nov 2025 18:02:35 +0000 From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 4713f5401317 - main - arm64: Add non-PCI MSI support Message-ID: <691cb4bb.22c59.19cdc0e7@gitrepo.freebsd.org>
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The branch main has been updated by andrew: URL: https://cgit.FreeBSD.org/src/commit/?id=4713f54013176fc73ada29cf094016fd3b328c80 commit 4713f54013176fc73ada29cf094016fd3b328c80 Author: Andrew Turner <andrew@FreeBSD.org> AuthorDate: 2025-11-18 18:00:30 +0000 Commit: Andrew Turner <andrew@FreeBSD.org> CommitDate: 2025-11-18 18:00:30 +0000 arm64: Add non-PCI MSI support Add the arm64 parts to support for non-PCI MSI and MSI-X interrupts. Sponsored by: Arm Ltd Differential Revision: https://reviews.freebsd.org/D53331 --- sys/arm64/arm64/nexus.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) diff --git a/sys/arm64/arm64/nexus.c b/sys/arm64/arm64/nexus.c index 26b3389db172..012bf859eb3c 100644 --- a/sys/arm64/arm64/nexus.c +++ b/sys/arm64/arm64/nexus.c @@ -72,6 +72,8 @@ #include "acpi_bus_if.h" #endif +#include "pcib_if.h" + extern struct bus_space memmap_bus; static MALLOC_DEFINE(M_NEXUSDEV, "nexusdev", "Nexus device"); @@ -123,6 +125,15 @@ static bus_get_bus_tag_t nexus_get_bus_tag; #ifdef FDT static ofw_bus_map_intr_t nexus_ofw_map_intr; +/* + * PCIB interface + */ +static pcib_alloc_msi_t nexus_fdt_pcib_alloc_msi; +static pcib_release_msi_t nexus_fdt_pcib_release_msi; +static pcib_alloc_msix_t nexus_fdt_pcib_alloc_msix; +static pcib_release_msix_t nexus_fdt_pcib_release_msix; +static pcib_map_msi_t nexus_fdt_pcib_map_msi; + #endif static device_method_t nexus_methods[] = { @@ -441,6 +452,13 @@ static device_method_t nexus_fdt_methods[] = { /* OFW interface */ DEVMETHOD(ofw_bus_map_intr, nexus_ofw_map_intr), + /* PCIB interface */ + DEVMETHOD(pcib_alloc_msi, nexus_fdt_pcib_alloc_msi), + DEVMETHOD(pcib_release_msi, nexus_fdt_pcib_release_msi), + DEVMETHOD(pcib_alloc_msix, nexus_fdt_pcib_alloc_msix), + DEVMETHOD(pcib_release_msix, nexus_fdt_pcib_release_msix), + DEVMETHOD(pcib_map_msi, nexus_fdt_pcib_map_msi), + DEVMETHOD_END, }; @@ -518,6 +536,73 @@ nexus_ofw_map_intr(device_t dev, device_t child, phandle_t iparent, int icells, irq = intr_map_irq(NULL, iparent, (struct intr_map_data *)fdt_data); return (irq); } + +static int +nexus_fdt_pcib_alloc_msi(device_t dev, device_t child, int count, int maxcount, + int *irqs) +{ + phandle_t msi_parent; + int error; + + error = ofw_bus_msimap(ofw_bus_get_node(child), 0, &msi_parent, NULL); + if (error != 0) + return (error); + + return (intr_alloc_msi(dev, child, msi_parent, count, maxcount, irqs)); +} + +static int +nexus_fdt_pcib_release_msi(device_t dev, device_t child, int count, int *irqs) +{ + phandle_t msi_parent; + int error; + + error = ofw_bus_msimap(ofw_bus_get_node(child), 0, &msi_parent, NULL); + if (error != 0) + return (error); + + return (intr_release_msi(dev, child, msi_parent, count, irqs)); +} + +static int +nexus_fdt_pcib_alloc_msix(device_t dev, device_t child, int *irq) +{ + phandle_t msi_parent; + int error; + + error = ofw_bus_msimap(ofw_bus_get_node(child), 0, &msi_parent, NULL); + if (error != 0) + return (error); + + return (intr_alloc_msix(dev, child, msi_parent, irq)); +} + +static int +nexus_fdt_pcib_release_msix(device_t dev, device_t child, int irq) +{ + phandle_t msi_parent; + int error; + + error = ofw_bus_msimap(ofw_bus_get_node(child), 0, &msi_parent, NULL); + if (error != 0) + return (error); + + return (intr_release_msix(dev, child, msi_parent, irq)); +} + +static int +nexus_fdt_pcib_map_msi(device_t dev, device_t child, int irq, uint64_t *addr, + uint32_t *data) +{ + phandle_t msi_parent; + int error; + + error = ofw_bus_msimap(ofw_bus_get_node(child), 0, &msi_parent, NULL); + if (error != 0) + return (error); + + return (intr_map_msi(dev, child, msi_parent, irq, addr, data)); +} #endif #ifdef DEV_ACPIhelp
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