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[82.218.84.190]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a9ee0a4a9b1sm240534066b.52.2024.11.08.06.47.31 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 08 Nov 2024 06:47:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=philjordan-eu.20230601.gappssmtp.com; s=20230601; t=1731077253; x=1731682053; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=cN1N8+w+rAWUcXauV3YKaXAkbjCSApA0Y+r3osG/bl8=; b=coszQL2lHTfzQiALEmUcxTh2PqsLTpsFwOV++71E8utHe3Pdt2Qdm79QRTlgBQaK0u w7CSZbn+Hw/1b6rGOcfSnl2YhUwsE3Yfgg1hpostSHBY1WBMXlhUYWokIjmadAm/oR0D a2VM3MYnZN1WvbEYkjnF5KIAXYAihf9wlAvnthS7dCkRL+oCd/SKS3flVIsc/dsfEir7 jy/vOc8rNTLPteB2bCSLn78KHf3EQ+2XeS/WLBH1TAYCIzRYy9RhzWL3oqTWDqRk1YZR imS4pBQGtj25/g5yGVX5V0mk+q1TM29+XlAmx6J8Fkctz49FN7AHxuXmHwg35d3Af8Zp Px+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731077253; x=1731682053; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=cN1N8+w+rAWUcXauV3YKaXAkbjCSApA0Y+r3osG/bl8=; b=fG4rcoH6mmMmXzW2iGGJJ2IXhD5oVzFK5VZ1m4SUjOuubKo+jxq0bgiF0fujPpYXS/ YA8djx0EC/tDac/JoL4OqHitZLIjetGA7hYUL1ZafYtsgbLev87ZispN1zRSmk10HZYe 8myHbmKiASvqdUWUV+UbvaDahdZFl2c0SgCE/L3Gylt3i7fOok8Pgde6rknF56Fvuo+e 2HtJpTA/CnJJnb4CVpakQRYhhFf24fu85ueB8g1WvYCTNbqo0MLVIkbDAcAZJMgfgi6+ byHTVrCgQy2dkBKpjcgrhY/EJdCf9dCFprAssbQRE+Ii40dnqAxBsD2B2smSnU+EE/DG By4Q== X-Gm-Message-State: AOJu0YyCTpowM5mnjXtU+u6Ka4fPiICYfIM22HwyWlqzoQczOrEAUr6x sR4LezAsRgBMma9Oz4ZPS4QThUf8CTF5CWmuJiNVWSHUIwfKhgag43PvmrPXlOvRYZG0LMO1qhe W0Q== X-Google-Smtp-Source: AGHT+IHGNDhAaLUjyM7HAjS/NclDmN+OKKXv3cjxt1L1t23dWejeHbrU3tzus4fxZyh07V6QlYUVdA== X-Received: by 2002:a17:907:728a:b0:a9d:e1db:de8b with SMTP id a640c23a62f3a-a9eefeeca1amr287722466b.16.1731077252841; Fri, 08 Nov 2024 06:47:32 -0800 (PST) From: Phil Dennis-Jordan To: qemu-devel@nongnu.org Cc: agraf@csgraf.de, phil@philjordan.eu, peter.maydell@linaro.org, pbonzini@redhat.com, rad@semihalf.com, quic_llindhol@quicinc.com, stefanha@redhat.com, mst@redhat.com, slp@redhat.com, richard.henderson@linaro.org, eduardo@habkost.net, marcel.apfelbaum@gmail.com, gaosong@loongson.cn, jiaxun.yang@flygoat.com, chenhuacai@kernel.org, kwolf@redhat.com, hreitz@redhat.com, philmd@linaro.org, shorne@gmail.com, palmer@dabbelt.com, alistair.francis@wdc.com, bmeng.cn@gmail.com, liwei1518@gmail.com, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, jcmvbkbc@gmail.com, marcandre.lureau@redhat.com, berrange@redhat.com, akihiko.odaki@daynix.com, qemu-arm@nongnu.org, qemu-block@nongnu.org, qemu-riscv@nongnu.org, Alexander Graf Subject: [PATCH v8 09/15] gpex: Allow more than 4 legacy IRQs Date: Fri, 8 Nov 2024 15:47:03 +0100 Message-Id: <20241108144709.95498-10-phil@philjordan.eu> X-Mailer: git-send-email 2.39.3 (Apple Git-145) In-Reply-To: <20241108144709.95498-1-phil@philjordan.eu> References: <20241108144709.95498-1-phil@philjordan.eu> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: neutral client-ip=2a00:1450:4864:20::62b; envelope-from=phil@philjordan.eu; helo=mail-ej1-x62b.google.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NEUTRAL=0.779 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @philjordan-eu.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1731077669654116600 Content-Type: text/plain; charset="utf-8" From: Alexander Graf Some boards such as vmapple don't do real legacy PCI IRQ swizzling. Instead, they just keep allocating more board IRQ lines for each new legacy IRQ. Let's support that mode by giving instantiators a new "nr_irqs" property they can use to support more than 4 legacy IRQ lines. In this mode, GPEX will export more IRQ lines, one for each device. Signed-off-by: Alexander Graf Signed-off-by: Phil Dennis-Jordan Reviewed-by: Akihiko Odaki --- v4: * Turned pair of IRQ arrays into array of structs. * Simplified swizzling logic selection. hw/arm/sbsa-ref.c | 2 +- hw/arm/virt.c | 2 +- hw/i386/microvm.c | 2 +- hw/loongarch/virt.c | 2 +- hw/mips/loongson3_virt.c | 2 +- hw/openrisc/virt.c | 12 +++++------ hw/pci-host/gpex.c | 43 ++++++++++++++++++++++++++++++-------- hw/riscv/virt.c | 12 +++++------ hw/xtensa/virt.c | 2 +- include/hw/pci-host/gpex.h | 7 +++---- 10 files changed, 55 insertions(+), 31 deletions(-) diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c index e3195d54497..7e7322486c2 100644 --- a/hw/arm/sbsa-ref.c +++ b/hw/arm/sbsa-ref.c @@ -673,7 +673,7 @@ static void create_pcie(SBSAMachineState *sms) /* Map IO port space */ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, base_pio); =20 - for (i =3D 0; i < GPEX_NUM_IRQS; i++) { + for (i =3D 0; i < PCI_NUM_PINS; i++) { sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, qdev_get_gpio_in(sms->gic, irq + i)); gpex_set_irq_num(GPEX_HOST(dev), i, irq + i); diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 1a381e9a2bd..8aa22ea3155 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -1547,7 +1547,7 @@ static void create_pcie(VirtMachineState *vms) /* Map IO port space */ sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, base_pio); =20 - for (i =3D 0; i < GPEX_NUM_IRQS; i++) { + for (i =3D 0; i < PCI_NUM_PINS; i++) { sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, qdev_get_gpio_in(vms->gic, irq + i)); gpex_set_irq_num(GPEX_HOST(dev), i, irq + i); diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c index 86637afa0f3..ce80596c239 100644 --- a/hw/i386/microvm.c +++ b/hw/i386/microvm.c @@ -139,7 +139,7 @@ static void create_gpex(MicrovmMachineState *mms) mms->gpex.mmio64.base, mmio64_alias); } =20 - for (i =3D 0; i < GPEX_NUM_IRQS; i++) { + for (i =3D 0; i < PCI_NUM_PINS; i++) { sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, x86ms->gsi[mms->gpex.irq + i]); } diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 9a635d1d3d3..50056384994 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -741,7 +741,7 @@ static void virt_devices_init(DeviceState *pch_pic, memory_region_add_subregion(get_system_memory(), VIRT_PCI_IO_BASE, pio_alias); =20 - for (i =3D 0; i < GPEX_NUM_IRQS; i++) { + for (i =3D 0; i < PCI_NUM_PINS; i++) { sysbus_connect_irq(d, i, qdev_get_gpio_in(pch_pic, 16 + i)); gpex_set_irq_num(GPEX_HOST(gpex_dev), i, 16 + i); diff --git a/hw/mips/loongson3_virt.c b/hw/mips/loongson3_virt.c index f3b6326cc59..884b5f23a99 100644 --- a/hw/mips/loongson3_virt.c +++ b/hw/mips/loongson3_virt.c @@ -458,7 +458,7 @@ static inline void loongson3_virt_devices_init(MachineS= tate *machine, virt_memmap[VIRT_PCIE_PIO].base, s->pio_al= ias); sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, virt_memmap[VIRT_PCIE_PIO].bas= e); =20 - for (i =3D 0; i < GPEX_NUM_IRQS; i++) { + for (i =3D 0; i < PCI_NUM_PINS; i++) { irq =3D qdev_get_gpio_in(pic, PCIE_IRQ_BASE + i); sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq); gpex_set_irq_num(GPEX_HOST(dev), i, PCIE_IRQ_BASE + i); diff --git a/hw/openrisc/virt.c b/hw/openrisc/virt.c index 47d2c9bd3c7..6f053bf48e0 100644 --- a/hw/openrisc/virt.c +++ b/hw/openrisc/virt.c @@ -318,7 +318,7 @@ static void create_pcie_irq_map(void *fdt, char *nodena= me, int irq_base, { int pin, dev; uint32_t irq_map_stride =3D 0; - uint32_t full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS * 6] =3D {}; + uint32_t full_irq_map[PCI_NUM_PINS * PCI_NUM_PINS * 6] =3D {}; uint32_t *irq_map =3D full_irq_map; =20 /* @@ -330,11 +330,11 @@ static void create_pcie_irq_map(void *fdt, char *node= name, int irq_base, * possible slot) seeing the interrupt-map-mask will allow the table * to wrap to any number of devices. */ - for (dev =3D 0; dev < GPEX_NUM_IRQS; dev++) { + for (dev =3D 0; dev < PCI_NUM_PINS; dev++) { int devfn =3D dev << 3; =20 - for (pin =3D 0; pin < GPEX_NUM_IRQS; pin++) { - int irq_nr =3D irq_base + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_= IRQS); + for (pin =3D 0; pin < PCI_NUM_PINS; pin++) { + int irq_nr =3D irq_base + ((pin + PCI_SLOT(devfn)) % PCI_NUM_P= INS); int i =3D 0; =20 /* Fill PCI address cells */ @@ -357,7 +357,7 @@ static void create_pcie_irq_map(void *fdt, char *nodena= me, int irq_base, } =20 qemu_fdt_setprop(fdt, nodename, "interrupt-map", full_irq_map, - GPEX_NUM_IRQS * GPEX_NUM_IRQS * + PCI_NUM_PINS * PCI_NUM_PINS * irq_map_stride * sizeof(uint32_t)); =20 qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask", @@ -409,7 +409,7 @@ static void openrisc_virt_pcie_init(OR1KVirtState *stat= e, memory_region_add_subregion(get_system_memory(), pio_base, alias); =20 /* Connect IRQ lines. */ - for (i =3D 0; i < GPEX_NUM_IRQS; i++) { + for (i =3D 0; i < PCI_NUM_PINS; i++) { pcie_irq =3D get_per_cpu_irq(cpus, num_cpus, irq_base + i); =20 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, pcie_irq); diff --git a/hw/pci-host/gpex.c b/hw/pci-host/gpex.c index e9cf455bf52..cd63aa2d3cf 100644 --- a/hw/pci-host/gpex.c +++ b/hw/pci-host/gpex.c @@ -32,6 +32,7 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "hw/irq.h" +#include "hw/pci/pci_bus.h" #include "hw/pci-host/gpex.h" #include "hw/qdev-properties.h" #include "migration/vmstate.h" @@ -41,20 +42,25 @@ * GPEX host */ =20 +struct GPEXIrq { + qemu_irq irq; + int irq_num; +}; + static void gpex_set_irq(void *opaque, int irq_num, int level) { GPEXHost *s =3D opaque; =20 - qemu_set_irq(s->irq[irq_num], level); + qemu_set_irq(s->irq[irq_num].irq, level); } =20 int gpex_set_irq_num(GPEXHost *s, int index, int gsi) { - if (index >=3D GPEX_NUM_IRQS) { + if (index >=3D s->num_irqs) { return -EINVAL; } =20 - s->irq_num[index] =3D gsi; + s->irq[index].irq_num =3D gsi; return 0; } =20 @@ -62,7 +68,7 @@ static PCIINTxRoute gpex_route_intx_pin_to_irq(void *opaq= ue, int pin) { PCIINTxRoute route; GPEXHost *s =3D opaque; - int gsi =3D s->irq_num[pin]; + int gsi =3D s->irq[pin].irq_num; =20 route.irq =3D gsi; if (gsi < 0) { @@ -74,6 +80,13 @@ static PCIINTxRoute gpex_route_intx_pin_to_irq(void *opa= que, int pin) return route; } =20 +static int gpex_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin) +{ + PCIBus *bus =3D pci_device_root_bus(pci_dev); + + return (PCI_SLOT(pci_dev->devfn) + pin) % bus->nirq; +} + static void gpex_host_realize(DeviceState *dev, Error **errp) { PCIHostState *pci =3D PCI_HOST_BRIDGE(dev); @@ -82,6 +95,8 @@ static void gpex_host_realize(DeviceState *dev, Error **e= rrp) PCIExpressHost *pex =3D PCIE_HOST_BRIDGE(dev); int i; =20 + s->irq =3D g_malloc0_n(s->num_irqs, sizeof(*s->irq)); + pcie_host_mmcfg_init(pex, PCIE_MMCFG_SIZE_MAX); sysbus_init_mmio(sbd, &pex->mmio); =20 @@ -128,19 +143,27 @@ static void gpex_host_realize(DeviceState *dev, Error= **errp) sysbus_init_mmio(sbd, &s->io_ioport); } =20 - for (i =3D 0; i < GPEX_NUM_IRQS; i++) { - sysbus_init_irq(sbd, &s->irq[i]); - s->irq_num[i] =3D -1; + for (i =3D 0; i < s->num_irqs; i++) { + sysbus_init_irq(sbd, &s->irq[i].irq); + s->irq[i].irq_num =3D -1; } =20 pci->bus =3D pci_register_root_bus(dev, "pcie.0", gpex_set_irq, - pci_swizzle_map_irq_fn, s, &s->io_mmi= o, - &s->io_ioport, 0, 4, TYPE_PCIE_BUS); + gpex_swizzle_map_irq_fn, + s, &s->io_mmio, &s->io_ioport, 0, + s->num_irqs, TYPE_PCIE_BUS); =20 pci_bus_set_route_irq_fn(pci->bus, gpex_route_intx_pin_to_irq); qdev_realize(DEVICE(&s->gpex_root), BUS(pci->bus), &error_fatal); } =20 +static void gpex_host_unrealize(DeviceState *dev) +{ + GPEXHost *s =3D GPEX_HOST(dev); + + g_free(s->irq); +} + static const char *gpex_host_root_bus_path(PCIHostState *host_bridge, PCIBus *rootbus) { @@ -166,6 +189,7 @@ static Property gpex_host_properties[] =3D { gpex_cfg.mmio64.base, 0), DEFINE_PROP_SIZE(PCI_HOST_ABOVE_4G_MMIO_SIZE, GPEXHost, gpex_cfg.mmio64.size, 0), + DEFINE_PROP_UINT8("num-irqs", GPEXHost, num_irqs, PCI_NUM_PINS), DEFINE_PROP_END_OF_LIST(), }; =20 @@ -176,6 +200,7 @@ static void gpex_host_class_init(ObjectClass *klass, vo= id *data) =20 hc->root_bus_path =3D gpex_host_root_bus_path; dc->realize =3D gpex_host_realize; + dc->unrealize =3D gpex_host_unrealize; set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); dc->fw_name =3D "pci"; device_class_set_props(dc, gpex_host_properties); diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c index 45a8c4f8190..567fe92a136 100644 --- a/hw/riscv/virt.c +++ b/hw/riscv/virt.c @@ -168,7 +168,7 @@ static void create_pcie_irq_map(RISCVVirtState *s, void= *fdt, char *nodename, { int pin, dev; uint32_t irq_map_stride =3D 0; - uint32_t full_irq_map[GPEX_NUM_IRQS * GPEX_NUM_IRQS * + uint32_t full_irq_map[PCI_NUM_PINS * PCI_NUM_PINS * FDT_MAX_INT_MAP_WIDTH] =3D {}; uint32_t *irq_map =3D full_irq_map; =20 @@ -180,11 +180,11 @@ static void create_pcie_irq_map(RISCVVirtState *s, vo= id *fdt, char *nodename, * possible slot) seeing the interrupt-map-mask will allow the table * to wrap to any number of devices. */ - for (dev =3D 0; dev < GPEX_NUM_IRQS; dev++) { + for (dev =3D 0; dev < PCI_NUM_PINS; dev++) { int devfn =3D dev * 0x8; =20 - for (pin =3D 0; pin < GPEX_NUM_IRQS; pin++) { - int irq_nr =3D PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % GPEX_NUM_= IRQS); + for (pin =3D 0; pin < PCI_NUM_PINS; pin++) { + int irq_nr =3D PCIE_IRQ + ((pin + PCI_SLOT(devfn)) % PCI_NUM_P= INS); int i =3D 0; =20 /* Fill PCI address cells */ @@ -210,7 +210,7 @@ static void create_pcie_irq_map(RISCVVirtState *s, void= *fdt, char *nodename, } =20 qemu_fdt_setprop(fdt, nodename, "interrupt-map", full_irq_map, - GPEX_NUM_IRQS * GPEX_NUM_IRQS * + PCI_NUM_PINS * PCI_NUM_PINS * irq_map_stride * sizeof(uint32_t)); =20 qemu_fdt_setprop_cells(fdt, nodename, "interrupt-map-mask", @@ -1182,7 +1182,7 @@ static inline DeviceState *gpex_pcie_init(MemoryRegio= n *sys_mem, =20 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 2, pio_base); =20 - for (i =3D 0; i < GPEX_NUM_IRQS; i++) { + for (i =3D 0; i < PCI_NUM_PINS; i++) { irq =3D qdev_get_gpio_in(irqchip, PCIE_IRQ + i); =20 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, irq); diff --git a/hw/xtensa/virt.c b/hw/xtensa/virt.c index 5310a888613..8f5c2009d29 100644 --- a/hw/xtensa/virt.c +++ b/hw/xtensa/virt.c @@ -93,7 +93,7 @@ static void create_pcie(MachineState *ms, CPUXtensaState = *env, int irq_base, /* Connect IRQ lines. */ extints =3D xtensa_get_extints(env); =20 - for (i =3D 0; i < GPEX_NUM_IRQS; i++) { + for (i =3D 0; i < PCI_NUM_PINS; i++) { void *q =3D extints[irq_base + i]; =20 sysbus_connect_irq(SYS_BUS_DEVICE(dev), i, q); diff --git a/include/hw/pci-host/gpex.h b/include/hw/pci-host/gpex.h index dce883573ba..84471533af0 100644 --- a/include/hw/pci-host/gpex.h +++ b/include/hw/pci-host/gpex.h @@ -32,8 +32,6 @@ OBJECT_DECLARE_SIMPLE_TYPE(GPEXHost, GPEX_HOST) #define TYPE_GPEX_ROOT_DEVICE "gpex-root" OBJECT_DECLARE_SIMPLE_TYPE(GPEXRootState, GPEX_ROOT_DEVICE) =20 -#define GPEX_NUM_IRQS 4 - struct GPEXRootState { /*< private >*/ PCIDevice parent_obj; @@ -49,6 +47,7 @@ struct GPEXConfig { PCIBus *bus; }; =20 +typedef struct GPEXIrq GPEXIrq; struct GPEXHost { /*< private >*/ PCIExpressHost parent_obj; @@ -60,8 +59,8 @@ struct GPEXHost { MemoryRegion io_mmio; MemoryRegion io_ioport_window; MemoryRegion io_mmio_window; - qemu_irq irq[GPEX_NUM_IRQS]; - int irq_num[GPEX_NUM_IRQS]; + GPEXIrq *irq; + uint8_t num_irqs; =20 bool allow_unmapped_accesses; =20 --=20 2.39.3 (Apple Git-145)