| /*␊ |
| * DRAM Controller Module␊ |
| * Scans the dram controller and notifies OS X of the memory modules.␊ |
| * Memory Module␊ |
| * Scans the dram controller and(/or spd), and notifies OS X of the memory modules.␊ |
| *␉This was converted from boot2 code to a boot2 module.␊ |
| *␊ |
| */␊ |
| ␊ |
| #include "libsaio.h"␊ |
| //#include "libsaio.h"␊ |
| #include "boot.h"␊ |
| #include "pci.h"␊ |
| #include "platform.h"␊ |
| #include "dram_controllers.h"␊ |
|
| //#include "mem.h"␊ |
| #include "modules.h"␊ |
| ␊ |
| #define kUseMemDetectKey "UseMemDetect"␊ |
| ␊ |
| pci_dt_t *dram_controller_dev;␊ |
| ␊ |
| ␊ |
|
| ␉pci_dt_t* current = arg1;␊ |
| ␉␊ |
| ␉if (current->class_id == PCI_CLASS_BRIDGE_HOST␊ |
| ␉␉&& (current->dev.addr == PCIADDR(0, 0, 0))␊ |
| ␉␉&& (current->dev.addr == PCIADDR(0, 0, 0)))␊ |
| ␉{␊ |
| ␉␉dram_controller_dev = current;␊ |
| ␉}␊ |
| }␊ |
| ␊ |
| void Memory_hook(void* arg1, void* arg2, void* arg3, void* arg4)␊ |
| {␊ |
| ␉if (dram_controller_dev!=NULL) {␊ |
| ␉␉scan_dram_controller(dram_controller_dev); // Rek: pci dev ram controller direct and fully informative scan ...␊ |
| ␉}␊ |
| ␉//Azi: gone on Kabyl's...???␊ |
| //␉scan_memory(&Platform); // unfortunately still necesary for some comp where spd cant read correct speed␊ |
| ␉scan_spd(&Platform);␊ |
| }␊ |
| ␊ |
| ␊ |
| ␊ |
| /* Nedded to devide 64bit numbers correctly. TODO: look into why the module needs this␊ |
| * And why it isn't needed when compiled into boot2␊ |
| */␊ |
| ␊ |
| uint64_t __udivdi3(uint64_t numerator, uint64_t denominator)␊ |
| {␊ |
| ␉uint64_t quotient = 0, qbit = 1;␊ |
| {␉␊ |
| ␉bool useAutodetection = true;␊ |
| ␉getBoolForKey(kUseMemDetectKey, &useAutodetection, &bootInfo->bootConfig);␊ |
| ␉␊ |
| ␉if (denominator)␊ |
| ␉if (useAutodetection)␊ |
| ␉{␊ |
| ␉␉while ((int64_t) denominator >= 0)␊ |
| ␉␉if (dram_controller_dev != NULL)␊ |
| ␉␉{␊ |
| ␉␉␉denominator <<= 1;␊ |
| ␉␉␉qbit <<= 1;␊ |
| ␉␉␉// Rek: pci dev ram controller direct and fully informative scan ...␊ |
| ␉␉␉scan_dram_controller(dram_controller_dev);␊ |
| ␉␉}␊ |
| ␉␉␊ |
| ␉␉while (denominator)␊ |
| ␉␉{␊ |
| ␉␉␉if (denominator <= numerator)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉numerator -= denominator;␊ |
| ␉␉␉␉quotient += qbit;␊ |
| ␉␉␉}␊ |
| ␉␉␉denominator >>= 1;␊ |
| ␉␉␉qbit >>= 1;␊ |
| ␉␉}␊ |
| ␉␉␊ |
| ␉␉return quotient;␊ |
| ␉}␊ |
| ␉else {␊ |
| ␉␉stop("Divide by 0");␊ |
| ␉␉return 0;␊ |
| ␉}␊ |
| ␉//Azi: gone on Kabyl's smbios update...???␊ |
| ␉// unfortunately still necesary for some comp where spd cant read correct speed␊ |
| //␉scan_memory(&Platform);␊ |
| ␉␊ |
| ␉scan_spd(&Platform); // check Mek's implementation!␊ |
| }␊ |
