ad5af93f25
Add a context value to the ioapic and loapic mkstub macros to allow the developer to specify a context value that will be passed on the stack to the interrupt service routines. All the invocations for the loapic_mkstub and ioapic_mkstub macros have been changed to pass in 0 so there is no functional difference ATM. This change removes the need for drivers to have trampoline ISR routines to pass a context vaule to their generic ISR routine. This is the first step in getting rid of the hack where the driver needs to look into the __initconfig_* linker objects. Change-Id: I2c5eaa20d8cb5a42ef445762c426854be32c8452 Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/* ioapic.h - public IOAPIC APIs */
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/*
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* Copyright (c) 2012-2015 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __INCioapich
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#define __INCioapich
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Redirection table entry bits: lower 32 bit
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* Used as flags argument in ioapic_irq_set
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*/
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#define IOAPIC_INT_MASK 0x00010000
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#define IOAPIC_TRIGGER_MASK 0x00008000
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#define IOAPIC_LEVEL 0x00008000
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#define IOAPIC_EDGE 0x00000000
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#define IOAPIC_REMOTE 0x00004000
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#define IOAPIC_LOW 0x00002000
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#define IOAPIC_HIGH 0x00000000
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#define IOAPIC_LOGICAL 0x00000800
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#define IOAPIC_PHYSICAL 0x00000000
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#define IOAPIC_FIXED 0x00000000
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#define IOAPIC_LOWEST 0x00000100
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#define IOAPIC_SMI 0x00000200
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#define IOAPIC_NMI 0x00000400
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#define IOAPIC_INIT 0x00000500
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#define IOAPIC_EXTINT 0x00000700
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#ifdef _ASMLANGUAGE
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GTEXT(_ioapic_eoi)
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.macro ioapic_mkstub device isr context
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GTEXT(_\()\device\()_\()\isr\()_stub)
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SECTION_FUNC(TEXT, _\()\device\()_\()\isr\()_stub)
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call _IntEnt /* Inform kernel interrupt has begun */
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pushl \context /* Push context parameter */
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call \isr /* Call actual interrupt handler */
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call _ioapic_eoi /* Inform ioapic interrupt is done */
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addl $4, %esp /* Clean-up stack from push above */
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jmp _IntExit /* Inform kernel interrupt is done */
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.endm
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#else /* _ASMLANGUAGE */
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int _ioapic_init(struct device *unused);
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void _ioapic_eoi(unsigned int irq);
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void *_ioapic_eoi_get(unsigned int irq, char *argRequired, void **arg);
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void _ioapic_irq_enable(unsigned int irq);
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void _ioapic_irq_disable(unsigned int irq);
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void _ioapic_int_vec_set(unsigned int irq, unsigned int vector);
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void _ioapic_irq_set(unsigned int irq, unsigned int vector, uint32_t flags);
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#endif /* _ASMLANGUAGE */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCioapich */
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