target/linux/ifxmips/files-2.6.32/arch/mips/ifxmips/common/pmu.c

   1 #include <linux/kernel.h>
   2 #include <linux/module.h>
   3 #include <linux/version.h>
   4
   5 #include <ifxmips.h>
   6
   7 void
   8 ifxmips_pmu_enable(unsigned int module)
   9 {
  10         int err = 1000000;
  11
  12         ifxmips_w32(ifxmips_r32(IFXMIPS_PMU_PWDCR) & ~module, IFXMIPS_PMU_PWDCR);
  13         while (--err && (ifxmips_r32(IFXMIPS_PMU_PWDSR) & module));
  14
  15         if (!err)
  16                 panic("activating PMU module failed!");
  17 }
  18 EXPORT_SYMBOL(ifxmips_pmu_enable);
  19
  20 void
  21 ifxmips_pmu_disable(unsigned int module)
  22 {
  23         ifxmips_w32(ifxmips_r32(IFXMIPS_PMU_PWDCR) | module, IFXMIPS_PMU_PWDCR);
  24 }
  25 EXPORT_SYMBOL(ifxmips_pmu_disable);