bff6be3e9b
universal. (1) New struct intr_map_data is defined as a container for arbitrary description of an interrupt used by a device. Typically, an interrupt number and configuration relevant to an interrupt controller is encoded in such description. However, any additional information may be encoded too like a set of cpus on which an interrupt should be enabled or vendor specific data needed for setup of an interrupt in controller. The struct intr_map_data itself is meant to be opaque for INTRNG. (2) An intr_map_irq() function is created which takes an interrupt controller identification and struct intr_map_data as arguments and returns global interrupt number which identifies an interrupt. (3) A set of functions to be used by bus drivers is created as well as a corresponding set of methods for interrupt controller drivers. These sets take both struct resource and struct intr_map_data as one of the arguments. There is a goal to keep struct intr_map_data in struct resource, however, this way a final solution is not limited to that. (4) Other small changes are done to reflect new situation. This is only first step aiming to create stable interface for interrupt controller drivers. Thus, some temporary solution is taken. Interrupt descriptions for devices are stored in INTRNG and two specific mapping function are created to be temporary used by bus drivers. That's why the struct intr_map_data is not opaque for INTRNG now. This temporary solution will be replaced by final one in next step. Differential Revision: https://reviews.freebsd.org/D5730
175 lines
3.9 KiB
Objective-C
175 lines
3.9 KiB
Objective-C
#-
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# Copyright (c) 2015-2016 Svatopluk Kraus
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# Copyright (c) 2015-2016 Michal Meloun
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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#include <sys/bus.h>
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#include <sys/cpuset.h>
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#include <sys/resource.h>
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#include <sys/intr.h>
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INTERFACE pic;
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CODE {
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static int
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dflt_pic_bind_intr(device_t dev, struct intr_irqsrc *isrc)
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{
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return (EOPNOTSUPP);
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}
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static int
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null_pic_alloc_intr(device_t dev, struct intr_irqsrc *isrc,
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struct resource *res, struct intr_map_data *data)
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{
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return (0);
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}
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static int
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null_pic_release_intr(device_t dev, struct intr_irqsrc *isrc,
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struct resource *res, struct intr_map_data *data)
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{
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return (0);
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}
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static int
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null_pic_setup_intr(device_t dev, struct intr_irqsrc *isrc,
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struct resource *res, struct intr_map_data *data)
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{
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return (0);
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}
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static int
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null_pic_teardown_intr(device_t dev, struct intr_irqsrc *isrc,
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struct resource *res, struct intr_map_data *data)
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{
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return (0);
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}
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static void
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null_pic_init_secondary(device_t dev)
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{
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}
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static void
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null_pic_ipi_send(device_t dev, cpuset_t cpus, u_int ipi)
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{
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}
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static int
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dflt_pic_ipi_setup(device_t dev, u_int ipi, struct intr_irqsrc *isrc)
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{
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return (EOPNOTSUPP);
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}
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};
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METHOD int alloc_intr {
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device_t dev;
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struct intr_irqsrc *isrc;
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struct resource *res;
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struct intr_map_data *data;
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} DEFAULT null_pic_alloc_intr;
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METHOD int bind_intr {
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device_t dev;
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struct intr_irqsrc *isrc;
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} DEFAULT dflt_pic_bind_intr;
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METHOD void disable_intr {
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device_t dev;
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struct intr_irqsrc *isrc;
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};
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METHOD void enable_intr {
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device_t dev;
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struct intr_irqsrc *isrc;
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};
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METHOD int map_intr {
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device_t dev;
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struct intr_map_data *data;
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struct intr_irqsrc **isrcp;
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};
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METHOD int release_intr {
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device_t dev;
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struct intr_irqsrc *isrc;
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struct resource *res;
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struct intr_map_data *data;
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} DEFAULT null_pic_release_intr;
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METHOD int setup_intr {
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device_t dev;
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struct intr_irqsrc *isrc;
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struct resource *res;
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struct intr_map_data *data;
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} DEFAULT null_pic_setup_intr;
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METHOD int teardown_intr {
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device_t dev;
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struct intr_irqsrc *isrc;
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struct resource *res;
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struct intr_map_data *data;
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} DEFAULT null_pic_teardown_intr;
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METHOD void post_filter {
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device_t dev;
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struct intr_irqsrc *isrc;
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};
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METHOD void post_ithread {
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device_t dev;
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struct intr_irqsrc *isrc;
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};
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METHOD void pre_ithread {
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device_t dev;
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struct intr_irqsrc *isrc;
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};
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METHOD void init_secondary {
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device_t dev;
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} DEFAULT null_pic_init_secondary;
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METHOD void ipi_send {
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device_t dev;
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struct intr_irqsrc *isrc;
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cpuset_t cpus;
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u_int ipi;
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} DEFAULT null_pic_ipi_send;
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METHOD int ipi_setup {
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device_t dev;
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u_int ipi;
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struct intr_irqsrc **isrcp;
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} DEFAULT dflt_pic_ipi_setup;
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