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[PATCH 3/5 gnumach] linux: No need to init PIT timer twice
From: |
Damien Zammit |
Subject: |
[PATCH 3/5 gnumach] linux: No need to init PIT timer twice |
Date: |
Wed, 01 Feb 2023 10:05:58 +0000 |
---
linux/dev/arch/i386/kernel/irq.c | 12 ++----------
linux/dev/init/main.c | 2 ++
2 files changed, 4 insertions(+), 10 deletions(-)
diff --git a/linux/dev/arch/i386/kernel/irq.c b/linux/dev/arch/i386/kernel/irq.c
index 67feea84..5f221da1 100644
--- a/linux/dev/arch/i386/kernel/irq.c
+++ b/linux/dev/arch/i386/kernel/irq.c
@@ -421,7 +421,7 @@ reserve_mach_irqs (void)
{
unsigned int i;
- for (i = 0; i < NINTR; i++)
+ for (i = 1; i < NINTR; i++)
{
if (ivect[i] != intnull)
/* This dummy action does not specify SA_SHIRQ, so
@@ -707,7 +707,6 @@ void
init_IRQ (void)
{
char *p;
- int latch = (CLKNUM + hz / 2) / hz;
/*
* Ensure interrupts are disabled.
@@ -715,19 +714,12 @@ init_IRQ (void)
(void) splhigh ();
#ifndef APIC
- /*
- * Program counter 0 of 8253 to interrupt hz times per second.
- */
- outb_p (PIT_C0 | PIT_SQUAREMODE | PIT_READMODE, PITCTL_PORT);
- outb_p (latch & 0xff, PITCTR0_PORT);
- outb (latch >> 8, PITCTR0_PORT);
-#endif
-
/*
* Install our clock interrupt handler.
*/
old_clock_handler = ivect[0];
ivect[0] = linux_timer_intr;
+#endif
reserve_mach_irqs ();
diff --git a/linux/dev/init/main.c b/linux/dev/init/main.c
index 6d853957..207724f3 100644
--- a/linux/dev/init/main.c
+++ b/linux/dev/init/main.c
@@ -160,7 +160,9 @@ linux_init (void)
pcmcia_init ();
#endif
+#ifndef APIC
restore_IRQ ();
+#endif
linux_auto_config = 0;
}
--
2.34.1
- Re: [PATCH 5/5 gnumach] linux: Skip probing IDE when 255 phys heads detected, (continued)
- [PATCH 2/5 gnumach] i386: Refactor int stacks to be per cpu for SMP, Damien Zammit, 2023/02/01
- Re: [PATCH 2/5 gnumach] i386: Refactor int stacks to be per cpu for SMP, Almudena Garcia, 2023/02/01
- Re: [PATCH 2/5 gnumach] i386: Refactor int stacks to be per cpu for SMP, Samuel Thibault, 2023/02/01
- Re: [PATCH 2/5 gnumach] i386: Refactor int stacks to be per cpu for SMP, Almudena Garcia, 2023/02/02
- Re: [PATCH 2/5 gnumach] i386: Refactor int stacks to be per cpu for SMP, Damien Zammit, 2023/02/03
- Re: [PATCH 2/5 gnumach] i386: Refactor int stacks to be per cpu for SMP, Almudena Garcia, 2023/02/03
- Re: [PATCH 2/5 gnumach] i386: Refactor int stacks to be per cpu for SMP, Damien Zammit, 2023/02/03
- Re: [PATCH 2/5 gnumach] i386: Refactor int stacks to be per cpu for SMP, Samuel Thibault, 2023/02/04
[PATCH 3/5 gnumach] linux: No need to init PIT timer twice,
Damien Zammit <=
Re: [PATCH 0/5 gnumach] Progress with SMP revisited, Almudena Garcia, 2023/02/01