| 40,6 → 40,8 |
|---|
| #include <arch/drivers/tick.h> |
| #include <print.h> |
| #include <arch/cpu_node.h> |
| #include <arch/sun4v/md.h> |
| #include <arch/sun4v/hypercall.h> |
| |
| /** Perform sparc64 specific initialization of the processor structure for the |
| * current processor. |
| 46,12 → 48,34 |
|---|
| */ |
| void cpu_arch_init(void) |
| { |
| // TODO: detect the real frequency as soon as MD walkthrough is implemented |
| CPU->arch.clock_frequency = 5000; |
| uint64_t myid; |
| __hypercall_fast_ret1(0, 0, 0, 0, 0, CPU_MYID, &myid); |
| |
| md_node_t node = md_get_root(); |
| |
| /* walk through MD, find the current CPU node & its clock-frequency */ |
| while (true) { |
| |
| if (!md_next_node(&node, "cpu")) { |
| panic("Could not determine CPU frequency."); |
| } |
| |
| uint64_t id = 0; |
| md_get_integer_property(node, "id", &id); |
| if (id == myid) { |
| uint64_t clock_frequency = 0; |
| md_get_integer_property(node, "clock-frequency", |
| &clock_frequency); |
| CPU->arch.clock_frequency = clock_frequency; |
| break; |
| } |
| } |
| |
| tick_init(); |
| } |
| |
| /** Implemented as an empty function as accessing the VER register is |
| /** |
| * Implemented as an empty function as accessing the VER register is |
| * a hyperprivileged operation on sun4v. |
| */ |
| void cpu_identify(void) |