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| author | Eric Auger <eric.auger@redhat.com> | 2025-07-14 10:04:58 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-07-15 02:56:40 -0400 |
| commit | e87ab64e8f614ae8702209dd801ac08ca5897ff1 (patch) | |
| tree | 09e12f2fbd3598968b417adf4868fe4c2f4cd5ea /hw/i386/acpi-build.c | |
| parent | d962f199c7e8625c91e8d1cc54a0323180e6f3e1 (diff) | |
| download | focaccia-qemu-e87ab64e8f614ae8702209dd801ac08ca5897ff1.tar.gz focaccia-qemu-e87ab64e8f614ae8702209dd801ac08ca5897ff1.zip | |
hw/i386/acpi-build: Move build_append_pci_bus_devices/pcihp_slots to pcihp
We intend to reuse build_append_pci_bus_devices and build_append_pcihp_slots on ARM. So let's move them to hw/acpi/pcihp.c as well as all static helpers they use. No functional change intended. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Gustavo Romero <gustavo.romero@linaro.org> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Message-Id: <20250714080639.2525563-15-eric.auger@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/i386/acpi-build.c')
| -rw-r--r-- | hw/i386/acpi-build.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 3275675e60..fe8bc62c03 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -338,29 +338,6 @@ build_facs(GArray *table_data) g_array_append_vals(table_data, reserved, 40); /* Reserved */ } -static Aml *aml_pci_device_dsm(void) -{ - Aml *method; - - method = aml_method("_DSM", 4, AML_SERIALIZED); - { - Aml *params = aml_local(0); - Aml *pkg = aml_package(2); - aml_append(pkg, aml_int(0)); - aml_append(pkg, aml_int(0)); - aml_append(method, aml_store(pkg, params)); - aml_append(method, - aml_store(aml_name("BSEL"), aml_index(params, aml_int(0)))); - aml_append(method, - aml_store(aml_name("ASUN"), aml_index(params, aml_int(1)))); - aml_append(method, - aml_return(aml_call5("PDSM", aml_arg(0), aml_arg(1), - aml_arg(2), aml_arg(3), params)) - ); - } - return method; -} - static Aml *aml_pci_edsm(void) { Aml *method, *ifctx; @@ -414,155 +391,6 @@ static Aml *aml_pci_edsm(void) return method; } -static Aml *aml_pci_static_endpoint_dsm(PCIDevice *pdev) -{ - Aml *method; - - g_assert(pdev->acpi_index != 0); - method = aml_method("_DSM", 4, AML_SERIALIZED); - { - Aml *params = aml_local(0); - Aml *pkg = aml_package(1); - aml_append(pkg, aml_int(pdev->acpi_index)); - aml_append(method, aml_store(pkg, params)); - aml_append(method, - aml_return(aml_call5("EDSM", aml_arg(0), aml_arg(1), - aml_arg(2), aml_arg(3), params)) - ); - } - return method; -} - -static void build_append_pcihp_notify_entry(Aml *method, int slot) -{ - Aml *if_ctx; - int32_t devfn = PCI_DEVFN(slot, 0); - - if_ctx = aml_if(aml_and(aml_arg(0), aml_int(0x1U << slot), NULL)); - aml_append(if_ctx, aml_notify(aml_name("S%.02X", devfn), aml_arg(1))); - aml_append(method, if_ctx); -} - -static bool is_devfn_ignored_generic(const int devfn, const PCIBus *bus) -{ - const PCIDevice *pdev = bus->devices[devfn]; - - if (PCI_FUNC(devfn)) { - if (IS_PCI_BRIDGE(pdev)) { - /* - * Ignore only hotplugged PCI bridges on !0 functions, but - * allow describing cold plugged bridges on all functions - */ - if (DEVICE(pdev)->hotplugged) { - return true; - } - } - } - return false; -} - -static bool is_devfn_ignored_hotplug(const int devfn, const PCIBus *bus) -{ - PCIDevice *pdev = bus->devices[devfn]; - if (pdev) { - return is_devfn_ignored_generic(devfn, bus) || - !DEVICE_GET_CLASS(pdev)->hotpluggable || - /* Cold plugged bridges aren't themselves hot-pluggable */ - (IS_PCI_BRIDGE(pdev) && !DEVICE(pdev)->hotplugged); - } else { /* non populated slots */ - /* - * hotplug is supported only for non-multifunction device - * so generate device description only for function 0 - */ - if (PCI_FUNC(devfn) || - (pci_bus_is_express(bus) && PCI_SLOT(devfn) > 0)) { - return true; - } - } - return false; -} - -void build_append_pcihp_slots(Aml *parent_scope, PCIBus *bus) -{ - int devfn; - Aml *dev, *notify_method = NULL, *method; - QObject *bsel = object_property_get_qobject(OBJECT(bus), - ACPI_PCIHP_PROP_BSEL, NULL); - uint64_t bsel_val = qnum_get_uint(qobject_to(QNum, bsel)); - qobject_unref(bsel); - - aml_append(parent_scope, aml_name_decl("BSEL", aml_int(bsel_val))); - notify_method = aml_method("DVNT", 2, AML_NOTSERIALIZED); - - for (devfn = 0; devfn < ARRAY_SIZE(bus->devices); devfn++) { - int slot = PCI_SLOT(devfn); - int adr = slot << 16 | PCI_FUNC(devfn); - - if (is_devfn_ignored_hotplug(devfn, bus)) { - continue; - } - - if (bus->devices[devfn]) { - dev = aml_scope("S%.02X", devfn); - } else { - dev = aml_device("S%.02X", devfn); - aml_append(dev, aml_name_decl("_ADR", aml_int(adr))); - } - - /* - * Can't declare _SUN here for every device as it changes 'slot' - * enumeration order in linux kernel, so use another variable for it - */ - aml_append(dev, aml_name_decl("ASUN", aml_int(slot))); - aml_append(dev, aml_pci_device_dsm()); - - aml_append(dev, aml_name_decl("_SUN", aml_int(slot))); - /* add _EJ0 to make slot hotpluggable */ - method = aml_method("_EJ0", 1, AML_NOTSERIALIZED); - aml_append(method, - aml_call2("PCEJ", aml_name("BSEL"), aml_name("_SUN")) - ); - aml_append(dev, method); - - build_append_pcihp_notify_entry(notify_method, slot); - - /* device descriptor has been composed, add it into parent context */ - aml_append(parent_scope, dev); - } - aml_append(parent_scope, notify_method); -} - -void build_append_pci_bus_devices(Aml *parent_scope, PCIBus *bus) -{ - int devfn; - Aml *dev; - - for (devfn = 0; devfn < ARRAY_SIZE(bus->devices); devfn++) { - /* ACPI spec: 1.0b: Table 6-2 _ADR Object Bus Types, PCI type */ - int adr = PCI_SLOT(devfn) << 16 | PCI_FUNC(devfn); - PCIDevice *pdev = bus->devices[devfn]; - - if (!pdev || is_devfn_ignored_generic(devfn, bus)) { - continue; - } - - /* start to compose PCI device descriptor */ - dev = aml_device("S%.02X", devfn); - aml_append(dev, aml_name_decl("_ADR", aml_int(adr))); - - call_dev_aml_func(DEVICE(bus->devices[devfn]), dev); - /* add _DSM if device has acpi-index set */ - if (pdev->acpi_index && - !object_property_get_bool(OBJECT(pdev), "hotpluggable", - &error_abort)) { - aml_append(dev, aml_pci_static_endpoint_dsm(pdev)); - } - - /* device descriptor has been composed, add it into parent context */ - aml_append(parent_scope, dev); - } -} - /* * build_prt - Define interrupt routing rules * |