| | 1 | #include <sys/param.h> |
| | 2 | #include <sys/bus.h> |
| | 3 | #include <sys/kernel.h> |
| | 4 | #include <sys/systm.h> |
| | 5 | #include <sys/sysctl.h> |
| | 6 | |
| | 7 | #include <machine/cpufunc.h> |
| | 8 | #include <machine/cputypes.h> |
| | 9 | #include <machine/md_var.h> |
| | 10 | #include <machine/specialreg.h> |
| | 11 | |
| | 12 | #include "acpi.h" |
| | 13 | #include "acpivar.h" |
| | 14 | #include "acpi_cpu.h" |
| | 15 | |
| | 16 | uint32_t |
| | 17 | acpi_cpu_md_features(void) |
| | 18 | { |
| | 19 | if (cpu_vendor_id == CPU_VENDOR_INTEL) { |
| | 20 | uint32_t regs[4]; |
| | 21 | static int reported; |
| | 22 | |
| | 23 | if (!reported) { |
| | 24 | do_cpuid(0x6, regs); |
| | 25 | if (regs[0] & 0x2) |
| | 26 | kprintf("Turbo mode enabled in BIOS\n"); |
| | 27 | reported = 1; |
| | 28 | } |
| | 29 | |
| | 30 | if (cpu_feature2 & CPUID2_EST) { |
| | 31 | return (ACPI_PDC_PX_MSR | |
| | 32 | ACPI_PDC_MP_PX_SWCOORD | |
| | 33 | ACPI_PDC_PX_HWCOORD); |
| | 34 | } |
| | 35 | } |
| | 36 | return 0; |
| | 37 | } |
projects / dragonfly.git / blame_incremental