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/openbmc/linux/drivers/acpi/acpica/
H A Devgpe.c27 * PARAMETERS: gpe_event_info - GPE to update
31 * DESCRIPTION: Updates GPE register enable mask based upon whether there are
32 * runtime references to this GPE
55 /* Set the mask bit only if there are references to this GPE */ in acpi_ev_update_gpe_enable_mask()
70 * PARAMETERS: gpe_event_info - GPE to enable
74 * DESCRIPTION: Enable a GPE.
84 /* Enable the requested GPE */ in acpi_ev_enable_gpe()
94 * PARAMETERS: gpe_event_info - GPE to be blocked/unblocked
95 * is_masked - Whether the GPE is masked or not
99 * DESCRIPTION: Unconditionally mask/unmask a GPE during runtime.
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H A Devxfgpe.c29 * DESCRIPTION: Complete GPE initialization and enable all GPEs that have
37 * after the system _PRW methods have been run, but also after a GPE Block
38 * Device has been added or if any new GPE methods have been added via a
83 * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 in ACPI_EXPORT_SYMBOL()
84 * gpe_number - GPE level within the GPE block in ACPI_EXPORT_SYMBOL()
88 * DESCRIPTION: Add a reference to a GPE. On the first reference, the GPE is in ACPI_EXPORT_SYMBOL()
103 * Ensure that we have a valid GPE number and that there is some way in ACPI_EXPORT_SYMBOL()
104 * of handling the GPE (handler or a GPE method). In other words, we in ACPI_EXPORT_SYMBOL()
105 * won't allow a valid GPE to be enabled if there is no way to handle it. in ACPI_EXPORT_SYMBOL()
137 * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 in ACPI_EXPORT_SYMBOL()
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H A Devgpeinit.c4 * Module Name: evgpeinit - System GPE initialization and update
21 * Originally (2000 - 2010), the GPE initialization code performed a walk of
53 * DESCRIPTION: Initialize the GPE data structures and the FADT GPE 0/1 blocks
75 * Initialize the GPE Block(s) defined in the FADT in acpi_ev_gpe_initialize()
77 * Why the GPE register block lengths are divided by 2: From the ACPI in acpi_ev_gpe_initialize()
91 * Determine the maximum GPE number for this machine. in acpi_ev_gpe_initialize()
103 /* GPE block 0 exists (has both length and address > 0) */ in acpi_ev_gpe_initialize()
109 /* Install GPE Block 0 */ in acpi_ev_gpe_initialize()
120 "Could not create GPE Block 0")); in acpi_ev_gpe_initialize()
128 /* GPE block 1 exists (has both length and address > 0) */ in acpi_ev_gpe_initialize()
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H A Dhwgpe.c4 * Module Name: hwgpe - Low level GPE enable/disable/clear functions
32 * reg - GPE register structure
36 * DESCRIPTION: Read from a GPE register in either memory or IO space.
73 * reg - GPE register structure
77 * DESCRIPTION: Write to a GPE register in either memory or IO space.
101 * PARAMETERS: gpe_event_info - Info block for the GPE
103 * RETURN: Register mask with a one in the GPE bit position
105 * DESCRIPTION: Compute the register mask for this GPE. One bit is set in the
106 * correct position for the input GPE.
122 * PARAMETERS: gpe_event_info - Info block for the GPE to be disabled
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H A Devgpeblk.c4 * Module Name: evgpeblk - GPE block creation and initialization.
30 * PARAMETERS: gpe_block - New GPE block
32 * GPE block
36 * DESCRIPTION: Install new GPE block with mutex support
89 * PARAMETERS: gpe_block - Existing GPE block
93 * DESCRIPTION: Remove a GPE block
160 * PARAMETERS: gpe_block - New GPE block
164 * DESCRIPTION: Create the register_info and event_info blocks for this GPE block
181 /* Allocate the GPE register information block */ in acpi_ev_create_gpe_info_blocks()
194 * Allocate the GPE event_info block. There are eight distinct GPEs in acpi_ev_create_gpe_info_blocks()
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H A Devgpeutil.c4 * Module Name: evgpeutil - GPE utilities
22 * PARAMETERS: gpe_walk_callback - Routine called for each GPE block
27 * DESCRIPTION: Walk the GPE lists.
47 /* Walk all Gpe Blocks attached to this interrupt level */ in acpi_ev_walk_gpe_list()
52 /* One callback per GPE block */ in acpi_ev_walk_gpe_list()
83 * DESCRIPTION: Matches the input GPE index (0-current_gpe_count) with a GPE
84 * block device. NULL if the GPE is one of the FADT-defined GPEs.
100 * The GPE index is within this block, get the node. Leave the node in acpi_ev_get_gpe_device()
118 * PARAMETERS: interrupt_number - Interrupt for a GPE block
123 * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt
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H A Dacevents.h14 * Conditions to trigger post enabling GPE polling:
15 * It is not sufficient to trigger edge-triggered GPE with specific GPE
59 * evgpe - Low-level GPE support
92 * evgpeblk - Upper-level GPE block support
118 * evgpeinit - GPE initialization and update
130 * evgpeutil - GPE utilities
H A Devxface.c42 * context - Value passed to the handler on each GPE
528 * is invoked upon each incoming GPE and Fixed Event. It is in ACPI_EXPORT_SYMBOL()
575 * context - Value passed to the handler on each GPE in ACPI_EXPORT_SYMBOL()
699 * PARAMETERS: gpe_device - Namespace node for the GPE (NULL for FADT in ACPI_EXPORT_SYMBOL()
701 * gpe_number - The GPE number within the GPE block in ACPI_EXPORT_SYMBOL()
702 * type - Whether this GPE should be treated as an in ACPI_EXPORT_SYMBOL()
704 * is_raw_handler - Whether this GPE should be handled using in ACPI_EXPORT_SYMBOL()
705 * the special GPE handler mode. in ACPI_EXPORT_SYMBOL()
707 * context - Value passed to the handler on each GPE in ACPI_EXPORT_SYMBOL()
750 /* Ensure that we have a valid GPE number */ in ACPI_EXPORT_SYMBOL()
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H A Daclocal.h417 /* Dispatch info for each GPE -- either a method or handler, cannot be both */
422 struct acpi_namespace_node *method_node; /* Method node for this GPE level (saved) */
423 u8 original_flags; /* Original (pre-handler) GPE info */
424 u8 originally_enabled; /* True if GPE was originally enabled */
435 * GPE dispatch info. At any time, the GPE can have at most one type
439 struct acpi_namespace_node *method_node; /* Method node for this GPE level */
440 struct acpi_gpe_handler_info *handler; /* Installed GPE handler */
445 * Information about a GPE, one per each GPE in an array.
451 u8 flags; /* Misc info about this GPE */
452 u8 gpe_number; /* This GPE */
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H A Devmisc.c230 /* Disable all GPEs in all GPE blocks */ in acpi_ev_terminate()
235 "Could not disable GPEs in GPE block")); in acpi_ev_terminate()
254 /* Deallocate all handler objects installed within GPE info structs */ in acpi_ev_terminate()
259 "Could not delete GPE handlers")); in acpi_ev_terminate()
/openbmc/linux/drivers/gpio/
H A Dgpio-sch.c45 /* GPE handling */
46 u32 gpe; member
258 static u32 sch_gpio_gpe_handler(acpi_handle gpe_device, u32 gpe, void *context) in sch_gpio_gpe_handler() argument
282 /* Acknowledge GPE to ACPICA */ in sch_gpio_gpe_handler()
292 acpi_disable_gpe(NULL, sch->gpe); in sch_gpio_remove_gpe_handler()
293 acpi_remove_gpe_handler(NULL, sch->gpe, sch->gpe_handler); in sch_gpio_remove_gpe_handler()
301 status = acpi_install_gpe_handler(NULL, sch->gpe, ACPI_GPE_LEVEL_TRIGGERED, in sch_gpio_install_gpe_handler()
304 dev_err(dev, "Failed to install GPE handler for %u: %s\n", in sch_gpio_install_gpe_handler()
305 sch->gpe, acpi_format_exception(status)); in sch_gpio_install_gpe_handler()
309 status = acpi_enable_gpe(NULL, sch->gpe); in sch_gpio_install_gpe_handler()
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/openbmc/linux/drivers/platform/surface/
H A Dsurface_gpe.c3 * Surface GPE/Lid driver to enable wakeup from suspend via the lid by
19 * Note: The GPE numbers for the lid devices found below have been obtained
20 * from ACPI/the DSDT table, specifically from the GPE handler for the
25 PROPERTY_ENTRY_U32("gpe", 0x17),
30 PROPERTY_ENTRY_U32("gpe", 0x4B),
35 PROPERTY_ENTRY_U32("gpe", 0x4D),
40 PROPERTY_ENTRY_U32("gpe", 0x4F),
45 PROPERTY_ENTRY_U32("gpe", 0x57),
209 dev_err(dev, "failed to set GPE wake mask: %s\n", in surface_lid_enable_wakeup()
236 ret = device_property_read_u32(&pdev->dev, "gpe", &gpe_number); in surface_gpe_probe()
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/openbmc/linux/Documentation/ABI/testing/
H A Ddebugfs-ec1 What: /sys/kernel/debug/ec/*/{gpe,use_global_lock,io}
6 General information like which GPE is assigned to the EC and whether
8 Knowing the EC GPE one can watch the amount of HW events related to
9 the EC here (XY -> GPE number from `/sys/kernel/debug/ec/*/gpe`):
H A Dsysfs-firmware-acpi108 number of a "General Purpose Events" (GPE).
110 A GPE vectors to a specified handler in AML, which
112 OS context. GPE 0x12, for example, would vector
177 gpeXX count for individual GPE source
191 invalid it's either a GPE or a Fixed Event that
194 disable the GPE/Fixed Event is valid but disabled.
196 enable the GPE/Fixed Event is valid and enabled.
214 Note that only writing to VALID GPE/Fixed Event is allowed,
215 i.e. user can only change the status of runtime GPE and
/openbmc/linux/drivers/acpi/
H A Dec.c128 * this threshold, will think there is a GPE storm happened and
129 * will disable the GPE for normal transaction.
133 MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm");
184 static int EC_FLAGS_TRUST_DSDT_GPE; /* Needs DSDT GPE as correction setting */
334 * GPE Registers
341 (void)acpi_get_gpe_status(NULL, ec->gpe, &gpe_status); in acpi_ec_gpe_status_set()
348 acpi_enable_gpe(NULL, ec->gpe); in acpi_ec_enable_gpe()
351 acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE); in acpi_ec_enable_gpe()
355 * On some platforms, EN=1 writes cannot trigger GPE. So in acpi_ec_enable_gpe()
356 * software need to manually trigger a pseudo GPE event on in acpi_ec_enable_gpe()
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H A Dsysfs.c642 pr_debug("GPE event 0x%02x\n", event_number); in acpi_global_event_handler()
662 pr_warn("Invalid GPE 0x%x", index); in get_status()
730 * enable/disable/clear a gpe/fixed event in user space.
758 pr_warn("Can not change Invalid GPE/Fixed Event status\n"); in counter_set()
805 * A Quirk Mechanism for GPE Flooding Prevention:
807 * Quirks may be needed to prevent GPE flooding on a specific GPE. The
813 * the GPE flooding for GPE 00, they need to specify the following boot
827 u8 gpe; in acpi_gpe_set_masked_gpes() local
829 ret = kstrtou8(val, 0, &gpe); in acpi_gpe_set_masked_gpes()
835 set_bit(gpe, acpi_masked_gpes_map); in acpi_gpe_set_masked_gpes()
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/openbmc/qemu/hw/acpi/
H A Dcore.c653 /* ACPI GPE */
656 ar->gpe.len = len; in acpi_gpe_init()
661 ar->gpe.sts = g_malloc0(len); in acpi_gpe_init()
662 ar->gpe.en = g_malloc0(len); in acpi_gpe_init()
667 memset(ar->gpe.sts, 0, ar->gpe.len / 2); in acpi_gpe_reset()
668 memset(ar->gpe.en, 0, ar->gpe.len / 2); in acpi_gpe_reset()
675 if (addr < ar->gpe.len / 2) { in acpi_gpe_ioport_get_ptr()
676 cur = ar->gpe.sts + addr; in acpi_gpe_ioport_get_ptr()
677 } else if (addr < ar->gpe.len) { in acpi_gpe_ioport_get_ptr()
678 cur = ar->gpe.en + addr - ar->gpe.len / 2; in acpi_gpe_ioport_get_ptr()
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/openbmc/linux/arch/mips/boot/dts/ingenic/
H A Dgcw0.dts44 gpio = <&gpe 9 0>;
139 gpios = <&gpe 21 GPIO_ACTIVE_LOW>;
146 gpios = <&gpe 25 GPIO_ACTIVE_LOW>;
153 gpios = <&gpe 23 GPIO_ACTIVE_LOW>;
160 gpios = <&gpe 24 GPIO_ACTIVE_LOW>;
167 gpios = <&gpe 29 GPIO_ACTIVE_LOW>;
174 gpios = <&gpe 20 GPIO_ACTIVE_LOW>;
181 gpios = <&gpe 27 GPIO_ACTIVE_LOW>;
188 gpios = <&gpe 28 GPIO_ACTIVE_LOW>;
202 gpios = <&gpe 26 GPIO_ACTIVE_LOW>;
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/openbmc/qemu/docs/specs/
H A Dacpi_pci_hotplug.rst7 ACPI GPE block (IO ports 0xafe0-0xafe3, byte access)
10 Generic ACPI GPE block. Bit 1 (GPE.1) used to notify PCI hotplug/eject
18 Read by ACPI BIOS GPE.1 handler to notify OS of injection
26 Read by ACPI BIOS GPE.1 handler to notify OS of removal
/openbmc/linux/arch/arm/boot/dts/samsung/
H A Ds3c64xx-pinctrl.dtsi47 gpe: gpe-gpio-bank { label
341 samsung,pins = "gpe-0", "gpe-2", "gpe-3", "gpe-4";
347 samsung,pins = "gpe-1";
380 samsung,pins = "gpe-0", "gpe-2", "gpe-3", "gpe-4";
386 samsung,pins = "gpe-1";
398 samsung,pins = "gpe-0", "gpe-1", "gpe-2", "gpe-3", "gpe-4";
/openbmc/linux/drivers/platform/x86/
H A Dapple-gmux.c70 int gpe; member
527 if (gmux_data->gpe >= 0 && in gmux_set_discrete_state()
613 * to trigger an ACPI GPE. ACPI name GMGP holds this GPIO pin's number. On the
617 * The GPE merely signals that an interrupt occurred, the actual type of event
624 * MacBookPro14,3), the ACPI GPE method differentiates between the OS type: On
790 unsigned long long gpe; in gmux_probe() local
909 status = acpi_evaluate_integer(gmux_data->dhandle, "GMGP", NULL, &gpe); in gmux_probe()
911 gmux_data->gpe = (int)gpe; in gmux_probe()
923 status = acpi_enable_gpe(NULL, gmux_data->gpe); in gmux_probe()
925 pr_err("Cannot enable gpe: %s\n", in gmux_probe()
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/openbmc/linux/drivers/input/keyboard/
H A Dapplespi.c31 * of exchanges: reads, and writes. A read is signaled by a GPE, upon which one
34 * receiving a GPE, reading the response message. Write exchanges cannot be
390 int gpe; member
1569 acpi_finish_gpe(NULL, applespi->gpe); in applespi_async_read_complete()
1572 static u32 applespi_notify(acpi_handle gpe_device, u32 gpe, void *context) in applespi_notify() argument
1640 unsigned long long gpe, usb_status; in applespi_probe() local
1753 acpi_sts = acpi_evaluate_integer(spi_handle, "_GPE", NULL, &gpe); in applespi_probe()
1756 "Failed to obtain GPE for SPI slave device: %s\n", in applespi_probe()
1760 applespi->gpe = (int)gpe; in applespi_probe()
1762 acpi_sts = acpi_install_gpe_handler(NULL, applespi->gpe, in applespi_probe()
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/openbmc/u-boot/arch/x86/include/asm/arch-broadwell/
H A Dpm.h75 #define GPE_31_0 0 /* 0x80/0x90 = GPE[31:0] */
76 #define GPE_63_32 1 /* 0x84/0x94 = GPE[63:32] */
77 #define GPE_94_64 2 /* 0x88/0x98 = GPE[94:64] */
78 #define GPE_STD 3 /* 0x8c/0x9c = Standard GPE */
/openbmc/u-boot/arch/x86/include/asm/arch-braswell/
H A Dgpio.h139 GPE, enumerator
180 int_mask, glitch, inv_rx_tx, wake_mask, wake_mask_bit, gpe, \ argument
210 .misc = ((((gpe) != NA) ? (gpe << 0) : 0) | \
/openbmc/linux/arch/x86/platform/olpc/
H A Dolpc-xo15-sci.c132 static u32 xo15_sci_gpe_handler(acpi_handle gpe_device, u32 gpe, void *context) in xo15_sci_gpe_handler() argument
150 /* Get GPE bit assignment (EC events). */ in xo15_sci_add()
162 dev_info(&device->dev, "Initialized, GPE = 0x%lx\n", xo15_sci_gpe); in xo15_sci_add()

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