Changeset 7ce9284 in mainline for arch/ia32

Timestamp:

2005-08-30T17:41:19Z (21 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

b45aa23

Parents:

10caad0

Message:

Dump implementation of THREAD, TASK and CPU.
Implement preemption-safe versions of THREAD, TASK and CPU using THE.
Get rid of CPU_ID_ARCH on all architectures.
Get rid of write_dr0() and read_dr0() on IA-32.
Get rid of cpu_private_data and cpu_private_data_t.

Location:

arch/ia32

Files:

• include/asm.h (modified) (1 diff)
• include/cpu.h (modified) (1 diff)
• src/ia32.c (modified) (1 diff)

arch/ia32/include/asm.h

@@ -84 +84 @@
 static inline __u32 read_cr3(void) { __u32 v; __asm__ volatile ("movl %%cr3,%0" : "=r" (v)); return v; }
 
-/** Write DR0
- *
- * Write value to DR0.
- *
- * @param v Value to be written.
- */
-static inline void write_dr0(__u32 v) { __asm__ volatile ("movl %0,%%dr0\n" : : "r" (v)); }
-
-/** Read DR0
- *
- * Return value in DR0
- *
- * @return Value read.
- */
-static inline __u32 read_dr0(void) { __u32 v; __asm__ volatile ("movl %%dr0,%0" : "=r" (v)); return v; }
-
 /** Set priority level low
  *

arch/ia32/include/cpu.h

@@ -34 +34 @@
 #include <arch/asm.h>
 
-#ifdef __SMP__
-#define CPU_ID_ARCH     (read_dr0())
-#else
-#define CPU_ID_ARCH     (0)
-#endif
-
 struct cpu_arch {
         int vendor;

arch/ia32/src/ia32.c

@@ -52 +52 @@
         pm_init();
 
-        write_dr0(config.cpu_active - 1);
-
         if (config.cpu_active == 1) {
                 bios_init();