kamkow1/mop3
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Implement lock IRQ nesting via stack variables/contexts
All checks were successful
Build documentation / build-and-deploy (push) Successful in 21s
Details

Browse Source
This commit is contained in:
Kamil Kowalczyk
2026-01-14 22:11:56 +01:00
parent 55166f9d5f
commit 270ff507d4
22 changed files with 197 additions and 145 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
kernel/amd64/intr.c
View File

@@ -210,18 +210,10 @@ static void amd64_irq_restore_flags (uint64_t rflags) {
}
/* Save current interrupt state */
void irq_save (void) {
int prev = atomic_fetch_add_explicit (&thiscpu->irq_ctx.nesting, 1, memory_order_acq_rel);
if (prev == 0)
thiscpu->irq_ctx.rflags = amd64_irq_save_flags ();
}
void irq_save (spin_lock_ctx_t* ctx) { *ctx = amd64_irq_save_flags (); }
/* Restore interrupt state */
void irq_restore (void) {
int prev = atomic_fetch_sub_explicit (&thiscpu->irq_ctx.nesting, 1, memory_order_acq_rel);
if (prev == 1)
amd64_irq_restore_flags (thiscpu->irq_ctx.rflags);
}
void irq_restore (spin_lock_ctx_t* ctx) { amd64_irq_restore_flags (*ctx); }
/* Map custom IRQ mappings to legacy IRQs */
uint8_t amd64_resolve_irq (uint8_t irq) {