Aml *cpu_on = aml_local(0);
Aml *madt = aml_local(1);
Aml *cpus_map = aml_name(CPU_ON_BITMAP);
+ Aml *zero = aml_int(0);
+ Aml *one = aml_int(1);
/*
* _MAT method - creates an madt apic buffer
aml_append(method, if_ctx);
else_ctx = aml_else();
{
- aml_append(else_ctx, aml_return(aml_int(0x0)));
+ aml_append(else_ctx, aml_return(zero));
}
aml_append(method, else_ctx);
aml_append(sb_scope, method);
aml_append(method, aml_sleep(200));
aml_append(sb_scope, method);
+ method = aml_method(stringify(CPU_SCAN_METHOD), 0, AML_NOTSERIALIZED);
+ {
+ Aml *while_ctx, *if_ctx2, *else_ctx2;
+ Aml *bus_check_evt = aml_int(1);
+ Aml *remove_evt = aml_int(3);
+ Aml *status_map = aml_local(5); /* Local5 = active cpu bitmap */
+ Aml *byte = aml_local(2); /* Local2 = last read byte from bitmap */
+ Aml *idx = aml_local(0); /* Processor ID / APIC ID iterator */
+ Aml *is_cpu_on = aml_local(1); /* Local1 = CPON flag for cpu */
+ Aml *status = aml_local(3); /* Local3 = active state for cpu */
+
+ aml_append(method, aml_store(aml_name(CPU_STATUS_MAP), status_map));
+ aml_append(method, aml_store(zero, byte));
+ aml_append(method, aml_store(zero, idx));
+
+ /* While (idx < SizeOf(CPON)) */
+ while_ctx = aml_while(aml_lless(idx, aml_sizeof(cpus_map)));
+ aml_append(while_ctx,
+ aml_store(aml_derefof(aml_index(cpus_map, idx)), is_cpu_on));
+
+ if_ctx = aml_if(aml_and(idx, aml_int(0x07), NULL));
+ {
+ /* Shift down previously read bitmap byte */
+ aml_append(if_ctx, aml_shiftright(byte, one, byte));
+ }
+ aml_append(while_ctx, if_ctx);
+
+ else_ctx = aml_else();
+ {
+ /* Read next byte from cpu bitmap */
+ aml_append(else_ctx, aml_store(aml_derefof(aml_index(status_map,
+ aml_shiftright(idx, aml_int(3), NULL))), byte));
+ }
+ aml_append(while_ctx, else_ctx);
+
+ aml_append(while_ctx, aml_store(aml_and(byte, one, NULL), status));
+ if_ctx = aml_if(aml_lnot(aml_equal(is_cpu_on, status)));
+ {
+ /* State change - update CPON with new state */
+ aml_append(if_ctx, aml_store(status, aml_index(cpus_map, idx)));
+ if_ctx2 = aml_if(aml_equal(status, one));
+ {
+ aml_append(if_ctx2,
+ aml_call2(AML_NOTIFY_METHOD, idx, bus_check_evt));
+ }
+ aml_append(if_ctx, if_ctx2);
+ else_ctx2 = aml_else();
+ {
+ aml_append(else_ctx2,
+ aml_call2(AML_NOTIFY_METHOD, idx, remove_evt));
+ }
+ }
+ aml_append(if_ctx, else_ctx2);
+ aml_append(while_ctx, if_ctx);
+
+ aml_append(while_ctx, aml_increment(idx)); /* go to next cpu */
+ aml_append(method, while_ctx);
+ }
+ aml_append(sb_scope, method);
+
aml_append(ctx, sb_scope);
}
Scope(\_SB) {
/* Objects filled in by run-time generated SSDT */
- External(NTFY, MethodObj)
- External(CPON, PkgObj)
- External(PRS, FieldUnitObj)
-
- /* Methods called by run-time generated SSDT Processor objects */
- Method(PRSC, 0) {
- // Local5 = active cpu bitmap
- Store(PRS, Local5)
- // Local2 = last read byte from bitmap
- Store(Zero, Local2)
- // Local0 = Processor ID / APIC ID iterator
- Store(Zero, Local0)
- While (LLess(Local0, SizeOf(CPON))) {
- // Local1 = CPON flag for this cpu
- Store(DerefOf(Index(CPON, Local0)), Local1)
- If (And(Local0, 0x07)) {
- // Shift down previously read bitmap byte
- ShiftRight(Local2, 1, Local2)
- } Else {
- // Read next byte from cpu bitmap
- Store(DerefOf(Index(Local5, ShiftRight(Local0, 3))), Local2)
- }
- // Local3 = active state for this cpu
- Store(And(Local2, 1), Local3)
-
- If (LNotEqual(Local1, Local3)) {
- // State change - update CPON with new state
- Store(Local3, Index(CPON, Local0))
- // Do CPU notify
- If (LEqual(Local3, 1)) {
- NTFY(Local0, 1)
- } Else {
- NTFY(Local0, 3)
- }
- }
- Increment(Local0)
- }
- }
+ External(CPU_SCAN_METHOD, MethodObj)
}