| 1 | /*␊ |
| 2 | * DRAM Controller Module␊ |
| 3 | * Scans the dram controller and notifies OS X of the memory modules.␊ |
| 4 | *␉This was converted from boot2 code to a boot2 module.␊ |
| 5 | *␊ |
| 6 | */␊ |
| 7 | ␊ |
| 8 | #include "libsaio.h"␊ |
| 9 | #include "pci.h"␊ |
| 10 | #include "platform.h"␊ |
| 11 | #include "dram_controllers.h"␊ |
| 12 | #include "spd.h"␊ |
| 13 | #include "mem.h"␊ |
| 14 | #include "boot.h"␊ |
| 15 | #include "bootstruct.h"␊ |
| 16 | #include "modules.h"␊ |
| 17 | ␊ |
| 18 | #define DEBUG_MEMORY 0␊ |
| 19 | ␊ |
| 20 | #if DEBUG_MEMORY␊ |
| 21 | #define DBG(x...) verbose(x)␊ |
| 22 | #else␊ |
| 23 | #define DBG(x...)␊ |
| 24 | #endif␊ |
| 25 | ␊ |
| 26 | ␊ |
| 27 | pci_dt_t * dram_controller_dev = NULL;␊ |
| 28 | pci_dt_t * smbus_controller_dev = NULL;␊ |
| 29 | ␊ |
| 30 | ␊ |
| 31 | void Memory_hook(void* arg1, void* arg2, void* arg3, void* arg4);␊ |
| 32 | void Memory_PCIDevice_hook(void* arg1, void* arg2, void* arg3, void* arg4);␊ |
| 33 | ␊ |
| 34 | ␊ |
| 35 | void Memory_start()␊ |
| 36 | {␊ |
| 37 | ␉register_hook_callback("PCIDevice", &Memory_PCIDevice_hook);␊ |
| 38 | ␉register_hook_callback("ScanMemory", &Memory_hook);␊ |
| 39 | ␉␊ |
| 40 | }␊ |
| 41 | ␊ |
| 42 | void Memory_PCIDevice_hook(void* arg1, void* arg2, void* arg3, void* arg4)␊ |
| 43 | {␊ |
| 44 | ␉pci_dt_t* current = arg1;␊ |
| 45 | ␉if(current->class_id == PCI_CLASS_BRIDGE_HOST)␊ |
| 46 | ␉{␊ |
| 47 | ␉␉dram_controller_dev = current;␊ |
| 48 | ␉␉DBG("dram_controller_dev found devID=%08x\n", current->device_id);␊ |
| 49 | ␉}␊ |
| 50 | ␉else if(is_smbus_controller(current))␊ |
| 51 | ␉{␊ |
| 52 | ␉␉smbus_controller_dev = current;␊ |
| 53 | ␉␉DBG("smbus_controller_dev found devID=%08x\n", current->device_id);␊ |
| 54 | ␉}␊ |
| 55 | ␊ |
| 56 | }␊ |
| 57 | ␊ |
| 58 | void Memory_hook(void* arg1, void* arg2, void* arg3, void* arg4)␊ |
| 59 | {␊ |
| 60 | ␉bool useAutodetection = true;␊ |
| 61 | getBoolForKey(kUseMemDetect, &useAutodetection, &bootInfo->bootConfig);␊ |
| 62 | ␉␊ |
| 63 | ␉␊ |
| 64 | if (useAutodetection) {␊ |
| 65 | ␉␉␊ |
| 66 | ␉␉if (dram_controller_dev!=NULL) {␊ |
| 67 | ␉␉␉scan_dram_controller(dram_controller_dev); // Rek: pci dev ram controller direct and fully informative scan ...␊ |
| 68 | ␉␉}␊ |
| 69 | ␉␉scan_memory(Platform); // unfortunately still necesary for some comp where spd cant read correct speed␊ |
| 70 | ␉␉DBG("scan_memory \n");␊ |
| 71 | ␉␉if(smbus_controller_dev)␊ |
| 72 | ␉␉{␊ |
| 73 | ␉␉␉scan_spd(Platform, smbus_controller_dev);␊ |
| 74 | ␉␉␉DBG("scan_spd \n");␊ |
| 75 | ␉␉}␊ |
| 76 | }␊ |
| 77 | ␉␊ |
| 78 | } |
