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Tsirkin" To: Mauro Carvalho Chehab Cc: Jonathan Cameron , Philippe =?iso-8859-1?Q?Mathieu-Daud=E9?= , Ani Sinha , Eduardo Habkost , Igor Mammedov , Marcel Apfelbaum , Peter Maydell , Shannon Zhao , Yanan Wang , linux-edac@kernel.org, linux-kernel@vger.kernel.org, qemu-arm@nongnu.org, qemu-devel@nongnu.org Subject: Re: [PATCH 1/6] arm/virt: Wire up GPIO error source for ACPI / GHES Message-ID: <20240711075332-mutt-send-email-mst@kernel.org> References: MIME-Version: 1.0 In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=170.10.133.124; envelope-from=mst@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.142, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@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-arm-bounces+alex.bennee=linaro.org@nongnu.org Sender: qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org X-TUID: b4ZIzo9SNUgk On Thu, Jul 11, 2024 at 11:52:03AM +0200, Mauro Carvalho Chehab wrote: > From: Jonathan Cameron > > Creates a GED - Generic Event Device and set a GPIO to > be used or error injection. > > Signed-off-by: Jonathan Cameron > Signed-off-by: Mauro Carvalho Chehab > --- > hw/arm/virt-acpi-build.c | 29 +++++++++++++++++++++++++---- > hw/arm/virt.c | 12 +++++++++++- > include/hw/boards.h | 1 + > 3 files changed, 37 insertions(+), 5 deletions(-) > > diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c > index e10cad86dd73..b6f2e55014a2 100644 > --- a/hw/arm/virt-acpi-build.c > +++ b/hw/arm/virt-acpi-build.c > @@ -63,6 +63,7 @@ > > #define ARM_SPI_BASE 32 > > +#define ACPI_GENERIC_EVENT_DEVICE "GEDD" > #define ACPI_BUILD_TABLE_SIZE 0x20000 > > static void acpi_dsdt_add_cpus(Aml *scope, VirtMachineState *vms) > @@ -155,9 +156,14 @@ static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap, > > Aml *aei = aml_resource_template(); > /* Pin 3 for power button */ > - const uint32_t pin_list[1] = {3}; > + uint32_t pin = 3; > aml_append(aei, aml_gpio_int(AML_CONSUMER, AML_EDGE, AML_ACTIVE_HIGH, > - AML_EXCLUSIVE, AML_PULL_UP, 0, pin_list, 1, > + AML_EXCLUSIVE, AML_PULL_UP, 0, &pin, 1, > + "GPO0", NULL, 0)); > + pin = 6; > + /* Pin 8 for generic error */ For real? Code says 6, comment says 8. Comments must come before the code they comment, not after it, then this kind of thing won't happen. > + aml_append(aei, aml_gpio_int(AML_CONSUMER, AML_EDGE, AML_ACTIVE_HIGH, > + AML_EXCLUSIVE, AML_PULL_UP, 0, &pin, 1, > "GPO0", NULL, 0)); > aml_append(dev, aml_name_decl("_AEI", aei)); > > @@ -166,6 +172,11 @@ static void acpi_dsdt_add_gpio(Aml *scope, const MemMapEntry *gpio_memmap, > aml_append(method, aml_notify(aml_name(ACPI_POWER_BUTTON_DEVICE), > aml_int(0x80))); > aml_append(dev, method); > + method = aml_method("_E06", 0, AML_NOTSERIALIZED); > + aml_append(method, aml_notify(aml_name(ACPI_GENERIC_EVENT_DEVICE), > + aml_int(0x80))); > + aml_append(dev, method); > + > aml_append(scope, dev); > } > > @@ -800,6 +811,15 @@ static void build_fadt_rev6(GArray *table_data, BIOSLinker *linker, > build_fadt(table_data, linker, &fadt, vms->oem_id, vms->oem_table_id); > } > > +static void acpi_dsdt_add_generic_event_device(Aml *scope) > +{ > + Aml *dev = aml_device(ACPI_GENERIC_EVENT_DEVICE); > + aml_append(dev, aml_name_decl("_HID", aml_string("PNP0C33"))); > + aml_append(dev, aml_name_decl("_UID", aml_int(0))); > + aml_append(dev, aml_name_decl("_STA", aml_int(0xF))); > + aml_append(scope, dev); > +} > + > /* DSDT */ > static void > build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) > @@ -842,9 +862,9 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) > irqmap[VIRT_ACPI_GED] + ARM_SPI_BASE, AML_SYSTEM_MEMORY, > memmap[VIRT_ACPI_GED].base); > } else { > - acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO], > - (irqmap[VIRT_GPIO] + ARM_SPI_BASE)); > } > + acpi_dsdt_add_gpio(scope, &memmap[VIRT_GPIO], > + (irqmap[VIRT_GPIO] + ARM_SPI_BASE)); > > if (vms->acpi_dev) { > uint32_t event = object_property_get_uint(OBJECT(vms->acpi_dev), > @@ -858,6 +878,7 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms) > } > > acpi_dsdt_add_power_button(scope); > + acpi_dsdt_add_generic_event_device(scope); > #ifdef CONFIG_TPM > acpi_dsdt_add_tpm(scope, vms); > #endif > diff --git a/hw/arm/virt.c b/hw/arm/virt.c > index b0c68d66a345..874a8612ef2d 100644 > --- a/hw/arm/virt.c > +++ b/hw/arm/virt.c > @@ -997,6 +997,13 @@ static void create_rtc(const VirtMachineState *vms) > } > > static DeviceState *gpio_key_dev; > + > +static DeviceState *gpio_error_dev; > +static void virt_set_error(void) > +{ > + qemu_set_irq(qdev_get_gpio_in(gpio_error_dev, 0), 1); > +} > + > static void virt_powerdown_req(Notifier *n, void *opaque) > { > VirtMachineState *s = container_of(n, VirtMachineState, powerdown_notifier); > @@ -1014,6 +1021,8 @@ static void create_gpio_keys(char *fdt, DeviceState *pl061_dev, > { > gpio_key_dev = sysbus_create_simple("gpio-key", -1, > qdev_get_gpio_in(pl061_dev, 3)); > + gpio_error_dev = sysbus_create_simple("gpio-key", -1, > + qdev_get_gpio_in(pl061_dev, 6)); > > qemu_fdt_add_subnode(fdt, "/gpio-keys"); > qemu_fdt_setprop_string(fdt, "/gpio-keys", "compatible", "gpio-keys"); > @@ -2385,8 +2394,8 @@ static void machvirt_init(MachineState *machine) > if (has_ged && aarch64 && firmware_loaded && virt_is_acpi_enabled(vms)) { > vms->acpi_dev = create_acpi_ged(vms); > } else { > - create_gpio_devices(vms, VIRT_GPIO, sysmem); > } > + create_gpio_devices(vms, VIRT_GPIO, sysmem); > > if (vms->secure && !vmc->no_secure_gpio) { > create_gpio_devices(vms, VIRT_SECURE_GPIO, secure_sysmem); > @@ -3100,6 +3109,7 @@ static void virt_machine_class_init(ObjectClass *oc, void *data) > mc->default_ram_id = "mach-virt.ram"; > mc->default_nic = "virtio-net-pci"; > > + mc->set_error = virt_set_error; > object_class_property_add(oc, "acpi", "OnOffAuto", > virt_get_acpi, virt_set_acpi, > NULL, NULL); > diff --git a/include/hw/boards.h b/include/hw/boards.h > index ef6f18f2c1a7..6cf01f3934ae 100644 > --- a/include/hw/boards.h > +++ b/include/hw/boards.h > @@ -304,6 +304,7 @@ struct MachineClass { > const CPUArchIdList *(*possible_cpu_arch_ids)(MachineState *machine); > int64_t (*get_default_cpu_node_id)(const MachineState *ms, int idx); > ram_addr_t (*fixup_ram_size)(ram_addr_t size); > + void (*set_error)(void); > }; > > /** > -- > 2.45.2