+ src = (save->save_r4 << 32) | (0x00000000FFFFFFFFULL & save->save_r5); /* Merge into 64-bit */
+ save->save_r3 = ml_probe_read_64(src, &temp); /* Try the address */
+ save->save_r4 = temp; /* Return the data */
+ return -1; /* Regurn and don't check for ASTs */
+
+/*
+ * Do perf monitor stuff
+ */
+
+ case dgPerfMon:
+
+ setPmon(save->save_r4, save->save_r5); /* Go load up MMCR0 and MMCR1 */
+ return -1; /* Regurn and don't check for ASTs */
+
+/*
+ * Map a page
+ * Don't bother to check for any errors.
+ * parms - vaddr, paddr, prot, attributes
+ */
+ case dgMapPage:
+
+ (void)mapping_make(current_thread()->map->pmap, /* Map in the page */
+ (addr64_t)(((save->save_r5 & 0xFFFFFFFF) << 32) | (save->save_r5 & 0xFFFFFFFF)), save->save_r6, 0, 1, VM_PROT_READ|VM_PROT_WRITE);
+
+ return -1; /* Return and check for ASTs... */
+
+/*
+ * SCOM interface
+ * parms - pointer to scomcomm
+ */
+ case dgScom:
+
+ ret = copyin(save->save_r4, (void *)&sarea, sizeof(scomcomm)); /* Get the data */
+ if(ret) return 0; /* Copyin failed - return an exception */
+
+ sarea.scomstat = 0xFFFFFFFFFFFFFFFFULL; /* Clear status */
+ cpu = cpu_number(); /* Get us */
+
+ if((sarea.scomcpu < real_ncpus) && PerProcTable[sarea.scomcpu].ppe_vaddr->running) {
+ if(sarea.scomcpu == cpu) { /* Is it us? */
+ if(sarea.scomfunc) { /* Are we writing */
+ sarea.scomstat = ml_scom_write(sarea.scomreg, sarea.scomdata); /* Write scom */
+ }
+ else {
+ sarea.scomstat = ml_scom_read(sarea.scomreg, &sarea.scomdata); /* Read scom */
+ }
+ }
+ else { /* Otherwise, tell the other processor */
+ (void)cpu_signal(sarea.scomcpu, SIGPcpureq, CPRQscom ,(unsigned int)&sarea); /* Ask him to do this */
+ (void)hw_cpu_sync((unsigned long)&sarea.scomstat, LockTimeOut); /* Wait for the other processor to get its temperature */
+ }
+ }
+
+ ret = copyout((void *)&sarea, save->save_r4, sizeof(scomcomm)); /* Get the data */
+ if(ret) return 0; /* Copyin failed - return an exception */
+
+ return -1; /* Return and check for ASTs... */
+
+/*
+ * Bind current thread to a processor. Parm is processor port. If port is 0, unbind.
+ */
+
+ case dgBind:
+
+ if(save->save_r4 == 0) { /* Are we unbinding? */
+ thread_bind(current_thread(), PROCESSOR_NULL); /* Unbind us */
+ save->save_r3 = KERN_SUCCESS; /* Set success */
+ return -1; /* Return and check asts */
+ }
+
+ ret = ipc_right_lookup_write(current_space(), (mach_port_name_t)save->save_r4,
+ &ientry); /* Look up the IPC entry */
+
+ if(ret != KERN_SUCCESS) { /* Couldn't find it */
+ save->save_r3 = ret; /* Pass back return */
+ return -1; /* Return and check asts */
+ }
+
+ port = (ipc_port_t)ientry->ie_object; /* Get the actual port */
+
+ if (!ip_active(port) || (ip_kotype(port) != IKOT_PROCESSOR)) { /* Active and a processor? */
+ is_write_unlock(current_space()); /* Unlock the space */
+ save->save_r3 = KERN_INVALID_ARGUMENT; /* This port is not a processor */
+ return -1; /* Return and check asts */
+ }
+
+ prssr = (processor_t)port->ip_kobject; /* Extract the processor */
+ is_write_unlock(current_space()); /* All done with the space now, unlock it */
+
+/*
+ * The following probably isn't valid if a processor is in the processor going offline,
+ * but who cares, this is a diagnostic interface...
+ */
+
+ if(prssr->state == PROCESSOR_SHUTDOWN) { /* Are we trying to bind to an offline processor? */
+ save->save_r3 = KERN_INVALID_ARGUMENT; /* This processor is offline */
+ return -1; /* Return and check asts */
+ }
+
+ thread_bind(current_thread(), prssr); /* Bind us to the processor */
+ thread_block(THREAD_CONTINUE_NULL); /* Make it so */
+
+ save->save_r3 = KERN_SUCCESS; /* Set success */
+ return -1; /* Return and check asts */
+
+/*
+ * Return per_proc for the named processor. Pass in a port. Returns per_proc or 0 if failure
+ */
+
+ case dgPproc:
+
+ ret = ipc_right_lookup_write(current_space(), (mach_port_name_t)save->save_r4,
+ &ientry); /* Look up the IPC entry */
+
+ if(ret != KERN_SUCCESS) { /* Couldn't find it */
+ save->save_r3 = 0; /* Pass back return */
+ return -1; /* Return and check asts */
+ }
+
+ port = (ipc_port_t)ientry->ie_object; /* Get the actualy port */
+
+ if (!ip_active(port) || (ip_kotype(port) != IKOT_PROCESSOR)) { /* Active and a processor? */
+ is_write_unlock(current_space()); /* Unlock the space */
+ save->save_r3 = 0; /* This port is not a processor */
+ return -1; /* Return and check asts */
+ }
+
+ prssr = (processor_t)port->ip_kobject; /* Extract the processor */
+ is_write_unlock(current_space()); /* All done with the space now, unlock it */
+
+ save->save_r3 = (uint64_t)PerProcTable[prssr->processor_data.slot_num].ppe_vaddr; /* Pass back ther per proc */
+ return -1; /* Return and check asts */
+
+/*
+ * Allocate contiguous memory in the kernel. Pass in size, pass back vaddr or 0 for error
+ * Note that this must be explicitly released by the user. There is an "issue"
+ * if we try to allocate directly into the user: the contiguous area has a kernel wire
+ * on it. If we terminate, we will hang waiting for wire to be released. Ain't no
+ * way that will happen, so we do it in the kernel and make them release it. That way
+ * we will leak rather than hang.
+ *
+ */
+ case dgAcntg:
+
+ addrs = 0; /* Clear just in case */
+
+ ret = kmem_alloc_contig(kernel_map, &addrs, (vm_size_t)save->save_r4,
+ PAGE_MASK, 0); /* That which does not make us stronger, kills us... */
+ if(ret != KERN_SUCCESS) addrs = 0; /* Pass 0 if error */
+
+ save->save_r3 = (uint64_t)addrs; /* Pass back whatever */
+ return -1; /* Return and check for ASTs... */
+
+
+/*
+ * Return physical address of a page in the kernel
+ */
+ case dgKlra:
+
+ save->save_r3 = pmap_find_phys(kernel_pmap, save->save_r4); /* Get read address */
+ return -1; /* Return no AST checking... */
+
+/*
+ * Release kernel memory - intent is to release congiguous memory
+ */
+ case dgKfree:
+
+ kmem_free( kernel_map, (vm_address_t) save->save_r4, (vm_size_t)save->save_r5);
+ return -1; /* Return no AST checking... */
+
+
+ case dgWar: /* Set or reset workaround flags */
+
+ save->save_r3 = (uint32_t)warFlags; /* Get the old flags */
+ oldwar = warFlags; /* Remember the old war flags */
+
+ subc = (int32_t)save->save_r4; /* Extract the subcommand */
+ switch(subc) { /* Do what we need */
+ case 1: /* Replace all */
+ warFlags = (uint32_t)save->save_r5; /* Do them all */
+ break;
+
+ case 2: /* Turn on selected workarounds */
+ warFlags = warFlags | (uint32_t)save->save_r5;
+ break;
+
+ case 3: /* Turn off selected workarounds */
+ warFlags = warFlags & ~((uint32_t)save->save_r5);
+ break;
+
+ case 4: /* Start up selected workaround */
+ break;
+
+ case 5: /* Stop selected workaround */
+ break;
+
+ case 6: /* Reset specific workaround parameters to default */
+ break;
+
+ case 7: /* Set workaround parameters */
+ break;
+
+ default:
+
+ break;
+
+ }
+
+ save->save_r3 = oldwar; /* Pass back original */
+ return -1;
+
+
projects / apple / xnu.git / blobdiff