Changeset 169815e in mainline for kernel/generic/src/mm/tlb.c

Timestamp:

2023-04-16T12:22:00Z (8 months ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

master, ticket/834-toolchain-update, topic/msim-upgrade

Children:

fbaf6ac

Parents:

b2ec5cf

git-author:

Jiří Zárevúcky <zarevucky.jiri@…> (2023-04-16 12:14:09)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2023-04-16 12:22:00)

Message:

Split cpu_t::lock into fpu_lock and tlb_lock

For all other purposes, locking is unnecessary, since the fields
in question are only accessed locally from the CPU they belong to.

File:

• kernel/generic/src/mm/tlb.c (modified) (4 diffs)

kernel/generic/src/mm/tlb.c

@@ -95 +95 @@
                 cpu_t *cpu = &cpus[i];
 
-                irq_spinlock_lock(&cpu->lock, false);
+                irq_spinlock_lock(&cpu->tlb_lock, false);
                 if (cpu->tlb_messages_count == TLB_MESSAGE_QUEUE_LEN) {
                         /*
@@ -116 +116 @@
                         cpu->tlb_messages[idx].count = count;
                 }
-                irq_spinlock_unlock(&cpu->lock, false);
+                irq_spinlock_unlock(&cpu->tlb_lock, false);
         }
 
@@ -158 +158 @@
         irq_spinlock_unlock(&tlblock, false);
 
-        irq_spinlock_lock(&CPU->lock, false);
+        irq_spinlock_lock(&CPU->tlb_lock, false);
         assert(CPU->tlb_messages_count <= TLB_MESSAGE_QUEUE_LEN);
 
@@ -189 +189 @@
 
         CPU->tlb_messages_count = 0;
-        irq_spinlock_unlock(&CPU->lock, false);
+        irq_spinlock_unlock(&CPU->tlb_lock, false);
         CPU->tlb_active = true;
 }