Changeset f619ec11 in mainline for kernel/arch/sparc64/src

Timestamp:

2007-02-03T21:26:54Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

cf5ddf6

Parents:

80bcaed

Message:

When clock() is called by an external interrupt dispatched by the IRQ dispatcher,
no spinlock can be held or the kernel will not be preemptive. This fixes Ticket #24.

Formating and indentation fixes.

Location:

kernel/arch/sparc64/src

Files:

• drivers/tick.c (modified) (1 diff)
• sparc64.c (modified) (2 diffs)

kernel/arch/sparc64/src/drivers/tick.c

@@ -100 +100 @@
                 CPU->missed_clock_ticks++;
         }
-        CPU->arch.next_tick_cmpr = tick_read() + (CPU->arch.clock_frequency /
-                HZ) - drift;
+        CPU->arch.next_tick_cmpr = tick_read() +
+            (CPU->arch.clock_frequency / HZ) - drift;
         tick_compare_write(CPU->arch.next_tick_cmpr);
         clock();

kernel/arch/sparc64/src/sparc64.c

@@ -137 +137 @@
 {
         uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
-                CPU->arch.clock_frequency / 1000000;
+            CPU->arch.clock_frequency / 1000000;
 
         while (tick_read() < stop)
@@ -147 +147 @@
 {
         switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
-                ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
-                - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
-                (uintptr_t) kernel_uarg->uspace_uarg);
+            ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
+            - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
+            (uintptr_t) kernel_uarg->uspace_uarg);
 
         for (;;)