rise.c 1.2 KB

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  1. #include <linux/kernel.h>
  2. #include <linux/init.h>
  3. #include <linux/bitops.h>
  4. #include <asm/processor.h>
  5. #include "cpu.h"
  6. static void __init init_rise(struct cpuinfo_x86 *c)
  7. {
  8. printk("CPU: Rise iDragon");
  9. if (c->x86_model > 2)
  10. printk(" II");
  11. printk("\n");
  12. /* Unhide possibly hidden capability flags
  13. The mp6 iDragon family don't have MSRs.
  14. We switch on extra features with this cpuid weirdness: */
  15. __asm__ (
  16. "movl $0x6363452a, %%eax\n\t"
  17. "movl $0x3231206c, %%ecx\n\t"
  18. "movl $0x2a32313a, %%edx\n\t"
  19. "cpuid\n\t"
  20. "movl $0x63634523, %%eax\n\t"
  21. "movl $0x32315f6c, %%ecx\n\t"
  22. "movl $0x2333313a, %%edx\n\t"
  23. "cpuid\n\t" : : : "eax", "ebx", "ecx", "edx"
  24. );
  25. set_bit(X86_FEATURE_CX8, c->x86_capability);
  26. }
  27. static struct cpu_dev rise_cpu_dev __initdata = {
  28. .c_vendor = "Rise",
  29. .c_ident = { "RiseRiseRise" },
  30. .c_models = {
  31. { .vendor = X86_VENDOR_RISE, .family = 5, .model_names =
  32. {
  33. [0] = "iDragon",
  34. [2] = "iDragon",
  35. [8] = "iDragon II",
  36. [9] = "iDragon II"
  37. }
  38. },
  39. },
  40. .c_init = init_rise,
  41. };
  42. int __init rise_init_cpu(void)
  43. {
  44. cpu_devs[X86_VENDOR_RISE] = &rise_cpu_dev;
  45. return 0;
  46. }
  47. //early_arch_initcall(rise_init_cpu);