From 01573e231f18eb2d99162747186f59511f56b64d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 08 Dec 2023 10:40:48 +0000
Subject: [PATCH] 移去rt
---
kernel/arch/x86/kernel/apic/io_apic.c | 105 ++++++++++++++++++++++++++--------------------------
1 files changed, 52 insertions(+), 53 deletions(-)
diff --git a/kernel/arch/x86/kernel/apic/io_apic.c b/kernel/arch/x86/kernel/apic/io_apic.c
index b1a7f45..25b1d5c 100644
--- a/kernel/arch/x86/kernel/apic/io_apic.c
+++ b/kernel/arch/x86/kernel/apic/io_apic.c
@@ -47,7 +47,7 @@
#include <linux/kthread.h>
#include <linux/jiffies.h> /* time_after() */
#include <linux/slab.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <asm/irqdomain.h>
#include <asm/io.h>
@@ -58,6 +58,7 @@
#include <asm/acpi.h>
#include <asm/dma.h>
#include <asm/timer.h>
+#include <asm/time.h>
#include <asm/i8259.h>
#include <asm/setup.h>
#include <asm/irq_remapping.h>
@@ -151,19 +152,6 @@
static inline bool mp_is_legacy_irq(int irq)
{
return irq >= 0 && irq < nr_legacy_irqs();
-}
-
-/*
- * Initialize all legacy IRQs and all pins on the first IOAPIC
- * if we have legacy interrupt controller. Kernel boot option "pirq="
- * may rely on non-legacy pins on the first IOAPIC.
- */
-static inline int mp_init_irq_at_boot(int ioapic, int irq)
-{
- if (!nr_legacy_irqs())
- return 0;
-
- return ioapic == 0 || mp_is_legacy_irq(irq);
}
static inline struct irq_domain *mp_ioapic_irqdomain(int ioapic)
@@ -812,6 +800,7 @@
return IOAPIC_POL_HIGH;
case MP_IRQPOL_RESERVED:
pr_warn("IOAPIC: Invalid polarity: 2, defaulting to low\n");
+ fallthrough;
case MP_IRQPOL_ACTIVE_LOW:
default: /* Pointless default required due to do gcc stupidity */
return IOAPIC_POL_LOW;
@@ -859,6 +848,7 @@
return IOAPIC_EDGE;
case MP_IRQTRIG_RESERVED:
pr_warn("IOAPIC: Invalid trigger mode 2 defaulting to level\n");
+ fallthrough;
case MP_IRQTRIG_LEVEL:
default: /* Pointless default required due to do gcc stupidity */
return IOAPIC_LEVEL;
@@ -870,10 +860,10 @@
{
init_irq_alloc_info(info, NULL);
info->type = X86_IRQ_ALLOC_TYPE_IOAPIC;
- info->ioapic_node = node;
- info->ioapic_trigger = trigger;
- info->ioapic_polarity = polarity;
- info->ioapic_valid = 1;
+ info->ioapic.node = node;
+ info->ioapic.trigger = trigger;
+ info->ioapic.polarity = polarity;
+ info->ioapic.valid = 1;
}
#ifndef CONFIG_ACPI
@@ -888,32 +878,32 @@
copy_irq_alloc_info(dst, src);
dst->type = X86_IRQ_ALLOC_TYPE_IOAPIC;
- dst->ioapic_id = mpc_ioapic_id(ioapic_idx);
- dst->ioapic_pin = pin;
- dst->ioapic_valid = 1;
- if (src && src->ioapic_valid) {
- dst->ioapic_node = src->ioapic_node;
- dst->ioapic_trigger = src->ioapic_trigger;
- dst->ioapic_polarity = src->ioapic_polarity;
+ dst->devid = mpc_ioapic_id(ioapic_idx);
+ dst->ioapic.pin = pin;
+ dst->ioapic.valid = 1;
+ if (src && src->ioapic.valid) {
+ dst->ioapic.node = src->ioapic.node;
+ dst->ioapic.trigger = src->ioapic.trigger;
+ dst->ioapic.polarity = src->ioapic.polarity;
} else {
- dst->ioapic_node = NUMA_NO_NODE;
+ dst->ioapic.node = NUMA_NO_NODE;
if (acpi_get_override_irq(gsi, &trigger, &polarity) >= 0) {
- dst->ioapic_trigger = trigger;
- dst->ioapic_polarity = polarity;
+ dst->ioapic.trigger = trigger;
+ dst->ioapic.polarity = polarity;
} else {
/*
* PCI interrupts are always active low level
* triggered.
*/
- dst->ioapic_trigger = IOAPIC_LEVEL;
- dst->ioapic_polarity = IOAPIC_POL_LOW;
+ dst->ioapic.trigger = IOAPIC_LEVEL;
+ dst->ioapic.polarity = IOAPIC_POL_LOW;
}
}
}
static int ioapic_alloc_attr_node(struct irq_alloc_info *info)
{
- return (info && info->ioapic_valid) ? info->ioapic_node : NUMA_NO_NODE;
+ return (info && info->ioapic.valid) ? info->ioapic.node : NUMA_NO_NODE;
}
static void mp_register_handler(unsigned int irq, unsigned long trigger)
@@ -943,14 +933,14 @@
* pin with real trigger and polarity attributes.
*/
if (irq < nr_legacy_irqs() && data->count == 1) {
- if (info->ioapic_trigger != data->trigger)
- mp_register_handler(irq, info->ioapic_trigger);
- data->entry.trigger = data->trigger = info->ioapic_trigger;
- data->entry.polarity = data->polarity = info->ioapic_polarity;
+ if (info->ioapic.trigger != data->trigger)
+ mp_register_handler(irq, info->ioapic.trigger);
+ data->entry.trigger = data->trigger = info->ioapic.trigger;
+ data->entry.polarity = data->polarity = info->ioapic.polarity;
}
- return data->trigger == info->ioapic_trigger &&
- data->polarity == info->ioapic_polarity;
+ return data->trigger == info->ioapic.trigger &&
+ data->polarity == info->ioapic.polarity;
}
static int alloc_irq_from_domain(struct irq_domain *domain, int ioapic, u32 gsi,
@@ -1012,7 +1002,7 @@
if (!mp_check_pin_attr(irq, info))
return -EBUSY;
if (__add_pin_to_irq_node(irq_data->chip_data, node, ioapic,
- info->ioapic_pin))
+ info->ioapic.pin))
return -ENOMEM;
} else {
info->flags |= X86_IRQ_ALLOC_LEGACY;
@@ -2114,8 +2104,8 @@
struct irq_alloc_info info;
ioapic_set_alloc_attr(&info, NUMA_NO_NODE, 0, 0);
- info.ioapic_id = mpc_ioapic_id(ioapic);
- info.ioapic_pin = pin;
+ info.devid = mpc_ioapic_id(ioapic);
+ info.ioapic.pin = pin;
mutex_lock(&ioapic_mutex);
irq = alloc_isa_irq_from_domain(domain, 0, ioapic, pin, &info);
mutex_unlock(&ioapic_mutex);
@@ -2141,6 +2131,9 @@
int apic1, pin1, apic2, pin2;
unsigned long flags;
int no_pin1 = 0;
+
+ if (!global_clock_event)
+ return;
local_irq_save(flags);
@@ -2316,9 +2309,9 @@
return 0;
init_irq_alloc_info(&info, NULL);
- info.type = X86_IRQ_ALLOC_TYPE_IOAPIC;
- info.ioapic_id = mpc_ioapic_id(ioapic);
- parent = irq_remapping_get_ir_irq_domain(&info);
+ info.type = X86_IRQ_ALLOC_TYPE_IOAPIC_GET_PARENT;
+ info.devid = mpc_ioapic_id(ioapic);
+ parent = irq_remapping_get_irq_domain(&info);
if (!parent)
parent = x86_vector_domain;
else
@@ -2651,7 +2644,9 @@
n = IOAPIC_RESOURCE_NAME_SIZE + sizeof(struct resource);
n *= nr_ioapics;
- mem = alloc_bootmem(n);
+ mem = memblock_alloc(n, SMP_CACHE_BYTES);
+ if (!mem)
+ panic("%s: Failed to allocate %lu bytes\n", __func__, n);
res = (void *)mem;
mem += sizeof(struct resource) * nr_ioapics;
@@ -2694,7 +2689,11 @@
#ifdef CONFIG_X86_32
fake_ioapic_page:
#endif
- ioapic_phys = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
+ ioapic_phys = (unsigned long)memblock_alloc(PAGE_SIZE,
+ PAGE_SIZE);
+ if (!ioapic_phys)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
+ __func__, PAGE_SIZE, PAGE_SIZE);
ioapic_phys = __pa(ioapic_phys);
}
set_fixmap_nocache(idx, ioapic_phys);
@@ -2946,9 +2945,9 @@
static void mp_irqdomain_get_attr(u32 gsi, struct mp_chip_data *data,
struct irq_alloc_info *info)
{
- if (info && info->ioapic_valid) {
- data->trigger = info->ioapic_trigger;
- data->polarity = info->ioapic_polarity;
+ if (info && info->ioapic.valid) {
+ data->trigger = info->ioapic.trigger;
+ data->polarity = info->ioapic.polarity;
} else if (acpi_get_override_irq(gsi, &data->trigger,
&data->polarity) < 0) {
/* PCI interrupts are always active low level triggered. */
@@ -2994,7 +2993,7 @@
return -EINVAL;
ioapic = mp_irqdomain_ioapic_idx(domain);
- pin = info->ioapic_pin;
+ pin = info->ioapic.pin;
if (irq_find_mapping(domain, (irq_hw_number_t)pin) > 0)
return -EEXIST;
@@ -3002,7 +3001,7 @@
if (!data)
return -ENOMEM;
- info->ioapic_entry = &data->entry;
+ info->ioapic.entry = &data->entry;
ret = irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, info);
if (ret < 0) {
kfree(data);
@@ -3010,7 +3009,7 @@
}
INIT_LIST_HEAD(&data->irq_2_pin);
- irq_data->hwirq = info->ioapic_pin;
+ irq_data->hwirq = info->ioapic.pin;
irq_data->chip = (domain->parent == x86_vector_domain) ?
&ioapic_chip : &ioapic_ir_chip;
irq_data->chip_data = data;
@@ -3020,8 +3019,8 @@
add_pin_to_irq_node(data, ioapic_alloc_attr_node(info), ioapic, pin);
local_irq_save(flags);
- if (info->ioapic_entry)
- mp_setup_entry(cfg, data, info->ioapic_entry);
+ if (info->ioapic.entry)
+ mp_setup_entry(cfg, data, info->ioapic.entry);
mp_register_handler(virq, data->trigger);
if (virq < nr_legacy_irqs())
legacy_pic->mask(virq);
--
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