i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

The init routine doesn't have to make sure that the IP bit of MSR is

Browse Source 
set since the boot loader already takes care of that.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5096 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2003-10-21 03:38:39 +00:00
parent 6f634c19b6
commit 622405014e
1 changed files with 9 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/kernel/core/arch/ppc/arch_int.c
+9 -11
View File
@@ -158,24 +158,22 @@ int
arch_int_init2(kernel_args *ka) arch_int_init2(kernel_args *ka)
{ {
region_id exception_region; region_id exception_region;
void *ex_handlers; void *handlers;
// create a region to map the irq vector code into (physical addres 0x0) // create a region to map the irq vector code into (physical address 0x0)
ex_handlers = (void *)ka->arch_args.exception_handlers.start; handlers = (void *)ka->arch_args.exception_handlers.start;
exception_region = vm_create_anonymous_region(vm_get_kernel_aspace_id(), "exception_handlers", exception_region = vm_create_anonymous_region(vm_get_kernel_aspace_id(), "exception_handlers",
&ex_handlers, REGION_ADDR_EXACT_ADDRESS, &handlers, REGION_ADDR_EXACT_ADDRESS,
ka->arch_args.exception_handlers.size, REGION_WIRING_WIRED_ALREADY, LOCK_RW|LOCK_KERNEL); ka->arch_args.exception_handlers.size,
REGION_WIRING_WIRED_ALREADY, LOCK_RW|LOCK_KERNEL);
if (exception_region < 0) if (exception_region < 0)
panic("arch_int_init2: could not create exception handler region\n"); panic("arch_int_init2: could not create exception handler region\n");
dprintf("exception handlers at %p\n", ex_handlers); dprintf("exception handlers at %p\n", handlers);
// copy the handlers into this area // copy the handlers into this area
memcpy(ex_handlers, &__irqvec_start, ka->arch_args.exception_handlers.size); memcpy(handlers, &__irqvec_start, ka->arch_args.exception_handlers.size);
arch_cpu_sync_icache(0, 0x3000); arch_cpu_sync_icache(0, 0x1000);
// make sure the IP bit isn't set (putting the exceptions at 0x0)
set_msr(get_msr() & ~MSR_IP);
return 0; return 0;
} }