Changeset 7a0359b in mainline for kernel/arch/ia64/include/cpu.h

Timestamp:

2010-07-02T15:42:19Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

bbfdf62

Parents:

e3ee9b9

Message:

improve kernel function tracing

• add support for more generic kernel sources
• replace attribute((no_instrument_function)) with NO_TRACE macro (shorter and for future compatibility with different compilers)
• to be on the safe side, do not instrument most of the inline and static functions (plus some specific non-static functions)

collateral code cleanup (no change in functionality)

File:

• kernel/arch/ia64/include/cpu.h (modified) (2 diffs)

kernel/arch/ia64/include/cpu.h

@@ -40 +40 @@
 #include <arch/asm.h>
 #include <arch/bootinfo.h>
+#include <trace.h>
 
-#define FAMILY_ITANIUM  0x7
-#define FAMILY_ITANIUM2 0x1f
+#define FAMILY_ITANIUM   0x7
+#define FAMILY_ITANIUM2  0x1f
+
+#define CR64_ID_SHIFT   24
+#define CR64_ID_MASK    0xff000000
+#define CR64_EID_SHIFT  16
+#define CR64_EID_MASK   0xff0000
 
 typedef struct {
@@ -55 +61 @@
  *
  * @return Value of CPUID[n] register.
+ *
  */
-static inline uint64_t cpuid_read(int n)
+NO_TRACE static inline uint64_t cpuid_read(int n)
 {
         uint64_t v;
         
-        asm volatile ("mov %0 = cpuid[%1]\n" : "=r" (v) : "r" (n));
+        asm volatile (
+                "mov %[v] = cpuid[%[r]]\n"
+                : [v] "=r" (v)
+                : [r] "r" (n)
+        );
         
         return v;
 }
 
-
-#define CR64_ID_SHIFT 24
-#define CR64_ID_MASK 0xff000000
-#define CR64_EID_SHIFT 16
-#define CR64_EID_MASK 0xff0000
-
-static inline int ia64_get_cpu_id(void)
+NO_TRACE static inline int ia64_get_cpu_id(void)
 {
-        uint64_t cr64=cr64_read();
-        return ((CR64_ID_MASK)&cr64)>>CR64_ID_SHIFT;
+        uint64_t cr64 = cr64_read();
+        return ((CR64_ID_MASK) &cr64) >> CR64_ID_SHIFT;
 }
 
-static inline int ia64_get_cpu_eid(void)
+NO_TRACE static inline int ia64_get_cpu_eid(void)
 {
-        uint64_t cr64=cr64_read();
-        return ((CR64_EID_MASK)&cr64)>>CR64_EID_SHIFT;
+        uint64_t cr64 = cr64_read();
+        return ((CR64_EID_MASK) &cr64) >> CR64_EID_SHIFT;
 }
 
-
-static inline void ipi_send_ipi(int id, int eid, int intno)
+NO_TRACE static inline void ipi_send_ipi(int id, int eid, int intno)
 {
         (bootinfo->sapic)[2 * (id * 256 + eid)] = intno;
         srlz_d();
-
 }