From 236963e7563be3e3f8220dac7bb4af446928e194 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Mon, 24 Jun 2024 22:55:29 -0400 Subject: Clean out for expt Signed-off-by: Ian Moffett --- sys/firmware/acpi/acpi_madt.c | 150 ------------------------------------------ 1 file changed, 150 deletions(-) delete mode 100644 sys/firmware/acpi/acpi_madt.c (limited to 'sys/firmware/acpi/acpi_madt.c') diff --git a/sys/firmware/acpi/acpi_madt.c b/sys/firmware/acpi/acpi_madt.c deleted file mode 100644 index 0e2b338..0000000 --- a/sys/firmware/acpi/acpi_madt.c +++ /dev/null @@ -1,150 +0,0 @@ -/* - * Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of Hyra nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define APIC_TYPE_LOCAL_APIC 0 -#define APIC_TYPE_IO_APIC 1 -#define APIC_TYPE_INTERRUPT_OVERRIDE 2 - -#define pr_trace(fmt, ...) kprintf("acpi: " fmt, ##__VA_ARGS__) - -__MODULE_NAME("acpi"); -__KERNEL_META("$Hyra$: acpi_madt.c, Ian Marco Moffett, " - "ACPI MADT parsing"); - - -static struct acpi_madt *madt = NULL; - -void * -acpi_get_lapic_base(void) -{ - if (madt == NULL) - return NULL; - return (void *)(uint64_t)madt->lapic_addr; -} - -static void -do_parse(struct cpu_info *ci) -{ - uint8_t *cur = NULL; - uint8_t *end = NULL; - - void *ioapic_mmio_base = NULL; - - struct apic_header *hdr = NULL; - struct ioapic *ioapic = NULL; - - cur = (uint8_t *)(madt + 1); - end = (uint8_t *)madt + madt->hdr.length; - - /* Parse the rest of the MADT */ - while (cur < end) { - hdr = (void *)cur; - - switch (hdr->type) { - case APIC_TYPE_IO_APIC: - /* - * TODO: Figure out how to use multiple - * I/O APICs. - */ - if (ioapic != NULL) { - break; - } - - ioapic = (struct ioapic *)cur; - - pr_trace("Detected I/O APIC (id=%d, gsi_base=%d)\n", - ioapic->ioapic_id, ioapic->gsi_base); - - ioapic_mmio_base = (void *)(uintptr_t)ioapic->ioapic_addr; - ioapic_set_base(ioapic_mmio_base); - break; - } - - cur += hdr->length; - } -} - -/* - * Converts IRQ numbers to its corresponding - * Global System Interrupt (GSI) number. - * - * @irq: IRQ number. - */ -uint32_t -irq_to_gsi(uint8_t irq) -{ - struct apic_header *hdr = NULL; - struct interrupt_override *override = NULL; - uint8_t *cur = NULL; - uint8_t *end = NULL; - - cur = (uint8_t *)(madt + 1); - end = (uint8_t *)madt + madt->hdr.length; - - while (cur < end) { - hdr = (void *)cur; - - switch (hdr->type) { - case APIC_TYPE_INTERRUPT_OVERRIDE: - override = (struct interrupt_override *)cur; - if (override->source == irq) { - return override->interrupt; - } - } - - cur += hdr->length; - } - - return irq; -} - -void -acpi_parse_madt(struct cpu_info *ci) -{ - /* Prevent this function from running twice */ - if (madt != NULL) { - return; - } - - madt = acpi_query("APIC"); - if (madt == NULL) { - panic("Failed to query for ACPI MADT\n"); - } - - do_parse(ci); -} -- cgit v1.2.3