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zephyr/drivers/interrupt_controller/intc_loapic_spurious.S

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loapic: handle spurious interrupts A special situation may occur when a processor raises its task priority to be greater than or equal to the level of the interrupt for which the processor INTR signal is currently being asserted. If at the time the INTA cycle is issued, the interrupt that was to be dispensed has become masked (programmed by software), the local APIC will deliver a spurious-interrupt vector. Dispensing the spurious-interrupt vector does not affect the ISR, so the handler for this vector should return without an EOI. Change-Id: I4cf4744bd6efd68b72e2c380269de4181dc80bd9 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2015-12-09 23:53:41 +01:00
/*
* Copyright (c) 2015 Intel Corporation
*
license: Replace Apache boilerplate with SPDX tag Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 02:01:01 +01:00
* SPDX-License-Identifier: Apache-2.0
loapic: handle spurious interrupts A special situation may occur when a processor raises its task priority to be greater than or equal to the level of the interrupt for which the processor INTR signal is currently being asserted. If at the time the INTA cycle is issued, the interrupt that was to be dispensed has become masked (programmed by software), the local APIC will deliver a spurious-interrupt vector. Dispensing the spurious-interrupt vector does not affect the ISR, so the handler for this vector should return without an EOI. Change-Id: I4cf4744bd6efd68b72e2c380269de4181dc80bd9 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2015-12-09 23:53:41 +01:00
*/
/**
* @file
spell: fix doxygen comment typos: /drivers Fix doxygen comment typos used to generate API docs Change-Id: I6fd5051c99bdcc731740c92001e525349c254d85 Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2017-04-19 19:45:34 +02:00
* @brief LOAPIC spurious interrupt handler
loapic: handle spurious interrupts A special situation may occur when a processor raises its task priority to be greater than or equal to the level of the interrupt for which the processor INTR signal is currently being asserted. If at the time the INTA cycle is issued, the interrupt that was to be dispensed has become masked (programmed by software), the local APIC will deliver a spurious-interrupt vector. Dispensing the spurious-interrupt vector does not affect the ISR, so the handler for this vector should return without an EOI. Change-Id: I4cf4744bd6efd68b72e2c380269de4181dc80bd9 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2015-12-09 23:53:41 +01:00
*/
asm: update files with <zephyr/...> include prefix Assembler files were not migrated with the new <zephyr/...> prefix. Note that the conversion has been scripted, refer to #45388 for more details. Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-05-09 13:56:13 +02:00
#include <zephyr/kernel_structs.h>
#include <zephyr/arch/x86/ia32/asm.h>
loapic: handle spurious interrupts A special situation may occur when a processor raises its task priority to be greater than or equal to the level of the interrupt for which the processor INTR signal is currently being asserted. If at the time the INTA cycle is issued, the interrupt that was to be dispensed has become masked (programmed by software), the local APIC will deliver a spurious-interrupt vector. Dispensing the spurious-interrupt vector does not affect the ISR, so the handler for this vector should return without an EOI. Change-Id: I4cf4744bd6efd68b72e2c380269de4181dc80bd9 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2015-12-09 23:53:41 +01:00
drivers: Rename reserved function names Rename reserved function names in drivers/ subdirectory. Update function macros concatenatenating function names with '##'. As there is a conflict between the existing gpio_sch_manage_callback() and _gpio_sch_manage_callback() names, leave the latter unmodified. Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
2019-03-12 22:15:42 +01:00
GTEXT(z_loapic_spurious_handler)
loapic: handle spurious interrupts A special situation may occur when a processor raises its task priority to be greater than or equal to the level of the interrupt for which the processor INTR signal is currently being asserted. If at the time the INTA cycle is issued, the interrupt that was to be dispensed has become masked (programmed by software), the local APIC will deliver a spurious-interrupt vector. Dispensing the spurious-interrupt vector does not affect the ISR, so the handler for this vector should return without an EOI. Change-Id: I4cf4744bd6efd68b72e2c380269de4181dc80bd9 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2015-12-09 23:53:41 +01:00
intc: loapic: mark data and functions as boot/pinned This marks the data and functions into appropriate linker sections. Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-03-17 21:47:56 +01:00
SECTION_FUNC(PINNED_TEXT, z_loapic_spurious_handler)
loapic: handle spurious interrupts A special situation may occur when a processor raises its task priority to be greater than or equal to the level of the interrupt for which the processor INTR signal is currently being asserted. If at the time the INTA cycle is issued, the interrupt that was to be dispensed has become masked (programmed by software), the local APIC will deliver a spurious-interrupt vector. Dispensing the spurious-interrupt vector does not affect the ISR, so the handler for this vector should return without an EOI. Change-Id: I4cf4744bd6efd68b72e2c380269de4181dc80bd9 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2015-12-09 23:53:41 +01:00
iret
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