ReactOS  0.4.15-dev-2985-g54406bf
xboxmem.c File Reference
#include <freeldr.h>
#include <debug.h>
Include dependency graph for xboxmem.c:

Go to the source code of this file.

Macros

#define TEST_SIZE   0x200
 
#define TEST_PATTERN1   0xAA
 
#define TEST_PATTERN2   0x55
 

Functions

 DBG_DEFAULT_CHANNEL (MEMORY)
 
VOID SetMemory (PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG_PTR BaseAddress, SIZE_T Size, TYPE_OF_MEMORY MemoryType)
 
VOID ReserveMemory (PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG_PTR BaseAddress, SIZE_T Size, TYPE_OF_MEMORY MemoryType, PCHAR Usage)
 
ULONG PcMemFinalizeMemoryMap (PFREELDR_MEMORY_DESCRIPTOR MemoryMap)
 
static VOID XboxInitializePCI (VOID)
 
VOID XboxMemInit (VOID)
 
memory_map_tXboxGetMultibootMemoryMap (INT *Count)
 
TYPE_OF_MEMORY XboxMultibootMemoryType (ULONG Type)
 
PFREELDR_MEMORY_DESCRIPTOR XboxMemGetMemoryMap (ULONG *MemoryMapSize)
 

Variables

static ULONG InstalledMemoryMb = 0
 
static ULONG AvailableMemoryMb = 0
 
multiboot_info_tMultibootInfoPtr
 
ULONG NvBase
 
PVOID FrameBuffer
 
ULONG FrameBufferSize
 
FREELDR_MEMORY_DESCRIPTOR XboxMemoryMap [MAX_BIOS_DESCRIPTORS+1]
 

Macro Definition Documentation

◆ TEST_PATTERN1

#define TEST_PATTERN1   0xAA

Definition at line 35 of file xboxmem.c.

◆ TEST_PATTERN2

#define TEST_PATTERN2   0x55

Definition at line 36 of file xboxmem.c.

◆ TEST_SIZE

#define TEST_SIZE   0x200

Definition at line 34 of file xboxmem.c.

Function Documentation

◆ DBG_DEFAULT_CHANNEL()

DBG_DEFAULT_CHANNEL ( MEMORY  )

◆ PcMemFinalizeMemoryMap()

ULONG PcMemFinalizeMemoryMap ( PFREELDR_MEMORY_DESCRIPTOR  MemoryMap)

Definition at line 547 of file pcmem.c.

549 {
550  ULONG i;
551 
552  /* Reserve some static ranges for freeldr */
553  ReserveMemory(MemoryMap, 0x1000, STACKLOW - 0x1000, LoaderFirmwareTemporary, "BIOS area");
556 
557  /* Default to 1 page above freeldr for the disk read buffer */
560 
561  /* Scan for free range above freeldr image */
562  for (i = 0; i < PcMapCount; i++)
563  {
564  if ((MemoryMap[i].BasePage > (FREELDR_BASE / PAGE_SIZE)) &&
565  (MemoryMap[i].MemoryType == LoaderFree))
566  {
567  /* Use this range for the disk read buffer */
568  DiskReadBuffer = (PVOID)(MemoryMap[i].BasePage * PAGE_SIZE);
569  DiskReadBufferSize = min(MemoryMap[i].PageCount * PAGE_SIZE,
571  break;
572  }
573  }
574 
575  TRACE("DiskReadBuffer=0x%p, DiskReadBufferSize=0x%lx\n",
577 
579 
580  /* Now reserve the range for the disk read buffer */
585  "Disk read buffer");
586 
587  TRACE("Dumping resulting memory map:\n");
588  for (i = 0; i < PcMapCount; i++)
589  {
590  TRACE("BasePage=0x%lx, PageCount=0x%lx, Type=%s\n",
591  MemoryMap[i].BasePage,
592  MemoryMap[i].PageCount,
593  MmGetSystemMemoryMapTypeString(MemoryMap[i].MemoryType));
594  }
595  return PcMapCount;
596 }
ULONG PcMapCount
Definition: pcmem.c:41
#define FREELDR_BASE
Definition: hardware.h:18
BIOS_MEMORY_MAP MemoryMap[32]
Definition: loader.c:11
#define DiskReadBuffer
Definition: hardware.h:33
unsigned char * PUCHAR
Definition: retypes.h:3
uint32_t ULONG_PTR
Definition: typedefs.h:65
#define STACKADDR
Definition: x86common.h:16
#define MAX_DISKREADBUFFER_SIZE
Definition: x86common.h:30
void * PVOID
Definition: retypes.h:9
#define STACKLOW
Definition: x86common.h:15
#define TRACE(s)
Definition: solgame.cpp:4
#define ASSERT(a)
Definition: mode.c:44
SIZE_T DiskReadBufferSize
Definition: hwdisk.c:47
#define PAGE_SIZE
Definition: env_spec_w32.h:49
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
#define min(a, b)
Definition: monoChain.cc:55
VOID ReserveMemory(PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG_PTR BaseAddress, SIZE_T Size, TYPE_OF_MEMORY MemoryType, PCHAR Usage)
Definition: pcmem.c:484
unsigned int ULONG
Definition: retypes.h:1
#define ALIGN_UP_BY(size, align)
SIZE_T FrLdrImageSize
Definition: meminit.c:35

Referenced by PcMemGetMemoryMap(), and XboxMemGetMemoryMap().

◆ ReserveMemory()

VOID ReserveMemory ( PFREELDR_MEMORY_DESCRIPTOR  MemoryMap,
ULONG_PTR  BaseAddress,
SIZE_T  Size,
TYPE_OF_MEMORY  MemoryType,
PCHAR  Usage 
)

Definition at line 484 of file pcmem.c.

490 {
491  ULONG_PTR BasePage, PageCount;
492  ULONG i;
493 
494  BasePage = BaseAddress / PAGE_SIZE;
496 
497  for (i = 0; i < PcMapCount; i++)
498  {
499  /* Check for conflicting descriptor */
500  if ((MemoryMap[i].BasePage < BasePage + PageCount) &&
501  (MemoryMap[i].BasePage + MemoryMap[i].PageCount > BasePage))
502  {
503  /* Check if the memory is free */
504  if (MemoryMap[i].MemoryType != LoaderFree)
505  {
508  __FILE__,
509  __LINE__,
510  "Failed to reserve memory in the range 0x%Ix - 0x%Ix for %s",
511  BaseAddress,
512  Size,
513  Usage);
514  }
515  }
516  }
517 
518  /* Add the memory descriptor */
521  BasePage,
522  PageCount,
523  MemoryType);
524 }
ULONG PcMapCount
Definition: pcmem.c:41
#define MAX_BIOS_DESCRIPTORS
Definition: pcbios.h:12
BIOS_MEMORY_MAP MemoryMap[32]
Definition: loader.c:11
_Must_inspect_result_ _In_ USAGE _In_ USHORT _In_ USAGE Usage
Definition: hidpi.h:382
IN PVOID IN PVOID IN USHORT IN USHORT Size
Definition: pci.h:361
uint32_t ULONG_PTR
Definition: typedefs.h:65
#define ADDRESS_AND_SIZE_TO_SPAN_PAGES(_Va, _Size)
_In_ HANDLE _Outptr_result_bytebuffer_ ViewSize PVOID * BaseAddress
Definition: mmfuncs.h:404
#define PAGE_SIZE
Definition: env_spec_w32.h:49
ULONG AddMemoryDescriptor(IN OUT PFREELDR_MEMORY_DESCRIPTOR List, IN ULONG MaxCount, IN PFN_NUMBER BasePage, IN PFN_NUMBER PageCount, IN TYPE_OF_MEMORY MemoryType)
Definition: meminit.c:102
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
VOID FrLdrBugCheckWithMessage(ULONG BugCode, PCHAR File, ULONG Line, PSTR Format,...)
Definition: entry.c:23
unsigned int ULONG
Definition: retypes.h:1

Referenced by PcMemFinalizeMemoryMap(), and XboxMemGetMemoryMap().

◆ SetMemory()

VOID SetMemory ( PFREELDR_MEMORY_DESCRIPTOR  MemoryMap,
ULONG_PTR  BaseAddress,
SIZE_T  Size,
TYPE_OF_MEMORY  MemoryType 
)

Definition at line 527 of file pcmem.c.

532 {
533  ULONG_PTR BasePage, PageCount;
534 
535  BasePage = BaseAddress / PAGE_SIZE;
537 
538  /* Add the memory descriptor */
541  BasePage,
542  PageCount,
543  MemoryType);
544 }
ULONG PcMapCount
Definition: pcmem.c:41
#define MAX_BIOS_DESCRIPTORS
Definition: pcbios.h:12
BIOS_MEMORY_MAP MemoryMap[32]
Definition: loader.c:11
IN PVOID IN PVOID IN USHORT IN USHORT Size
Definition: pci.h:361
uint32_t ULONG_PTR
Definition: typedefs.h:65
#define ADDRESS_AND_SIZE_TO_SPAN_PAGES(_Va, _Size)
_In_ HANDLE _Outptr_result_bytebuffer_ ViewSize PVOID * BaseAddress
Definition: mmfuncs.h:404
#define PAGE_SIZE
Definition: env_spec_w32.h:49
ULONG AddMemoryDescriptor(IN OUT PFREELDR_MEMORY_DESCRIPTOR List, IN ULONG MaxCount, IN PFN_NUMBER BasePage, IN PFN_NUMBER PageCount, IN TYPE_OF_MEMORY MemoryType)
Definition: meminit.c:102

Referenced by PcMemGetMemoryMap(), and XboxMemGetMemoryMap().

◆ XboxGetMultibootMemoryMap()

memory_map_t* XboxGetMultibootMemoryMap ( INT Count)

Definition at line 175 of file xboxmem.c.

176 {
178 
179  if (!MultibootInfoPtr)
180  {
181  ERR("Multiboot info structure not found!\n");
182  return NULL;
183  }
184 
186  {
187  ERR("Multiboot memory map is not passed!\n");
188  return NULL;
189  }
190 
192 
193  if (!MemoryMap ||
195  MultibootInfoPtr->mmap_length % sizeof(memory_map_t) != 0)
196  {
197  ERR("Multiboot memory map structure is malformed!\n");
198  return NULL;
199  }
200 
202  return MemoryMap;
203 }
multiboot_info_t * MultibootInfoPtr
unsigned long mmap_addr
Definition: multiboot.h:109
BIOS_MEMORY_MAP MemoryMap[32]
Definition: loader.c:11
if(dx==0 &&dy==0)
Definition: linetemp.h:174
unsigned long flags
Definition: multiboot.h:96
#define MB_INFO_FLAG_MEMORY_MAP
Definition: multiboot.h:50
int Count
Definition: noreturn.cpp:7
struct memory_map memory_map_t
unsigned long mmap_length
Definition: multiboot.h:108
#define ERR(fmt,...)
Definition: debug.h:110
#define NULL
Definition: types.h:112

Referenced by XboxMemGetMemoryMap().

◆ XboxInitializePCI()

static VOID XboxInitializePCI ( VOID  )
static

Definition at line 59 of file xboxmem.c.

60 {
61  PCI_TYPE1_CFG_BITS PciCfg1;
62  ULONG PciData;
63 
64  /* Select PCI to PCI bridge */
65  PciCfg1.u.bits.Enable = 1;
66  PciCfg1.u.bits.BusNumber = 0;
67  PciCfg1.u.bits.DeviceNumber = 8;
68  PciCfg1.u.bits.FunctionNumber = 0;
69  /* Select register VendorID & DeviceID */
70  PciCfg1.u.bits.RegisterNumber = 0x00;
71  PciCfg1.u.bits.Reserved = 0;
72 
75 
76  if (PciData == 0x01B810DE)
77  {
78  /* Select register PrimaryBus/SecondaryBus/SubordinateBus/SecondaryLatency */
79  PciCfg1.u.bits.RegisterNumber = 0x18;
81 
82  /* Link uninitialized PCI bridge to the empty PCI bus 2,
83  * it's not supposed to have any devices attached anyway */
85  PciData &= 0xFF0000FF;
86  PciData |= 0x00020200;
88  }
89 
90  /* Select AGP to PCI bridge */
91  PciCfg1.u.bits.DeviceNumber = 30;
92  /* Select register VendorID & DeviceID */
93  PciCfg1.u.bits.RegisterNumber = 0x00;
94 
97 
98  if (PciData == 0x01B710DE)
99  {
100  /* Zero out uninitialized AGP Host bridge BARs */
101 
102  /* Select register BAR0 */
103  PciCfg1.u.bits.RegisterNumber = 0x10;
105  /* Zero it out */
107 
108  /* Select register BAR1 */
109  PciCfg1.u.bits.RegisterNumber = 0x14;
111  /* Zero it out */
113  }
114 }
ULONG NTAPI READ_PORT_ULONG(IN PULONG Port)
Definition: portio.c:70
struct _PCI_TYPE1_CFG_BITS::@153::@154 bits
VOID NTAPI WRITE_PORT_ULONG(IN PULONG Port, IN ULONG Value)
Definition: portio.c:123
#define PCI_TYPE1_ADDRESS_PORT
Definition: hardware.h:33
union _PCI_TYPE1_CFG_BITS::@153 u
unsigned int * PULONG
Definition: retypes.h:1
#define PCI_TYPE1_DATA_PORT
Definition: hardware.h:34
unsigned int ULONG
Definition: retypes.h:1

Referenced by XboxMemInit().

◆ XboxMemGetMemoryMap()

PFREELDR_MEMORY_DESCRIPTOR XboxMemGetMemoryMap ( ULONG MemoryMapSize)

Definition at line 228 of file xboxmem.c.

229 {
230  memory_map_t * MbMap;
231  INT Count, i;
232 
233  TRACE("XboxMemGetMemoryMap()\n");
234 
236  if (MbMap)
237  {
238  /* Obtain memory map via multiboot spec */
239 
240  for (i = 0; i < Count; i++, MbMap++)
241  {
242  TRACE("i = %d, base_addr_low = 0x%p, length_low = 0x%p\n", i, MbMap->base_addr_low, MbMap->length_low);
243 
244  if (MbMap->base_addr_high > 0 || MbMap->length_high > 0)
245  {
246  ERR("Memory descriptor base or size is greater than 4 GB, should not happen on Xbox!\n");
247  ASSERT(FALSE);
248  }
249 
251  MbMap->base_addr_low,
252  MbMap->length_low,
253  XboxMultibootMemoryType(MbMap->type));
254  }
255  }
256  else
257  {
258  /* Synthesize memory map */
259 
260  /* Available RAM block */
262  0,
263  AvailableMemoryMb * 1024 * 1024,
264  LoaderFree);
265 
266  if (FrameBufferSize != 0)
267  {
268  /* Video memory */
273  "Video memory");
274  }
275  }
276 
277  *MemoryMapSize = PcMemFinalizeMemoryMap(XboxMemoryMap);
278  return XboxMemoryMap;
279 }
ULONG FrameBufferSize
Definition: xboxvideo.c:29
VOID ReserveMemory(PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG_PTR BaseAddress, SIZE_T Size, TYPE_OF_MEMORY MemoryType, PCHAR Usage)
Definition: pcmem.c:484
TYPE_OF_MEMORY XboxMultibootMemoryType(ULONG Type)
Definition: xboxmem.c:206
int32_t INT
Definition: typedefs.h:58
uint32_t ULONG_PTR
Definition: typedefs.h:65
static ULONG AvailableMemoryMb
Definition: xboxmem.c:28
#define FALSE
Definition: types.h:117
int Count
Definition: noreturn.cpp:7
#define TRACE(s)
Definition: solgame.cpp:4
#define ASSERT(a)
Definition: mode.c:44
memory_map_t * XboxGetMultibootMemoryMap(INT *Count)
Definition: xboxmem.c:175
unsigned long length_high
Definition: multiboot.h:122
unsigned long base_addr_low
Definition: multiboot.h:119
FREELDR_MEMORY_DESCRIPTOR XboxMemoryMap[MAX_BIOS_DESCRIPTORS+1]
Definition: xboxmem.c:225
#define ERR(fmt,...)
Definition: debug.h:110
unsigned long length_low
Definition: multiboot.h:121
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
unsigned long base_addr_high
Definition: multiboot.h:120
unsigned long type
Definition: multiboot.h:123
VOID SetMemory(PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG_PTR BaseAddress, SIZE_T Size, TYPE_OF_MEMORY MemoryType)
Definition: pcmem.c:527
ULONG PcMemFinalizeMemoryMap(PFREELDR_MEMORY_DESCRIPTOR MemoryMap)
Definition: pcmem.c:547
PVOID FrameBuffer
Definition: xboxvideo.c:28

Referenced by MachInit().

◆ XboxMemInit()

VOID XboxMemInit ( VOID  )

Definition at line 117 of file xboxmem.c.

118 {
119  PCI_TYPE1_CFG_BITS PciCfg1;
120  UCHAR ControlRegion[TEST_SIZE];
121  PVOID MembaseTop = (PVOID)(64 * 1024 * 1024);
122  PVOID MembaseLow = (PVOID)0;
123 
125  WRITE_REGISTER_ULONG((PULONG)(NvBase + NV2A_FB_CFG0 + 4), 0x11448000);
126 
127  /* Select Host to PCI bridge */
128  PciCfg1.u.bits.Enable = 1;
129  PciCfg1.u.bits.BusNumber = 0;
130  PciCfg1.u.bits.DeviceNumber = 0;
131  PciCfg1.u.bits.FunctionNumber = 0;
132  PciCfg1.u.bits.Reserved = 0;
133  /* Prepare hardware for 128 MB */
134  PciCfg1.u.bits.RegisterNumber = 0x84;
135 
138 
139  InstalledMemoryMb = 64;
140  memset(ControlRegion, TEST_PATTERN1, TEST_SIZE);
141  memset(MembaseTop, TEST_PATTERN1, TEST_SIZE);
142  __wbinvd();
143 
144  if (memcmp(MembaseTop, ControlRegion, TEST_SIZE) == 0)
145  {
146  /* Looks like there is memory .. maybe a 128MB box */
147  memset(ControlRegion, TEST_PATTERN2, TEST_SIZE);
148  memset(MembaseTop, TEST_PATTERN2, TEST_SIZE);
149  __wbinvd();
150  if (memcmp(MembaseTop, ControlRegion, TEST_SIZE) == 0)
151  {
152  /* Definitely looks like there is memory */
153  if (memcmp(MembaseLow, ControlRegion, TEST_SIZE) == 0)
154  {
155  /* Hell, we find the Test-string at 0x0 too! */
156  InstalledMemoryMb = 64;
157  }
158  else
159  {
160  InstalledMemoryMb = 128;
161  }
162  }
163  }
164 
165  /* Set hardware for amount of memory detected */
168 
170 
172 }
NTKERNELAPI VOID NTAPI WRITE_REGISTER_ULONG(IN PULONG Register, IN ULONG Value)
int memcmp(void *Buffer1, void *Buffer2, ACPI_SIZE Count)
Definition: utclib.c:112
struct _PCI_TYPE1_CFG_BITS::@153::@154 bits
#define TEST_SIZE
Definition: xboxmem.c:34
#define NV2A_FB_CFG0
Definition: xgpu.h:19
static VOID XboxInitializePCI(VOID)
Definition: xboxmem.c:59
static ULONG AvailableMemoryMb
Definition: xboxmem.c:28
#define TEST_PATTERN1
Definition: xboxmem.c:35
VOID NTAPI WRITE_PORT_ULONG(IN PULONG Port, IN ULONG Value)
Definition: portio.c:123
void * PVOID
Definition: retypes.h:9
#define PCI_TYPE1_ADDRESS_PORT
Definition: hardware.h:33
PPC_QUAL void __wbinvd(void)
Definition: intrin_ppc.h:759
unsigned char UCHAR
Definition: xmlstorage.h:181
#define TEST_PATTERN2
Definition: xboxmem.c:36
union _PCI_TYPE1_CFG_BITS::@153 u
unsigned int * PULONG
Definition: retypes.h:1
static ULONG InstalledMemoryMb
Definition: xboxmem.c:27
#define PCI_TYPE1_DATA_PORT
Definition: hardware.h:34
ULONG NvBase
Definition: xboxvideo.c:27
#define memset(x, y, z)
Definition: compat.h:39

Referenced by MachInit().

◆ XboxMultibootMemoryType()

TYPE_OF_MEMORY XboxMultibootMemoryType ( ULONG  Type)

Definition at line 206 of file xboxmem.c.

207 {
208  switch (Type)
209  {
210  case 0: // Video RAM
212  case 1: // Available RAM
213  return LoaderFree;
214  case 3: // ACPI area
216  case 4: // Hibernation area
217  return LoaderSpecialMemory;
218  case 5: // Reserved or invalid memory
219  return LoaderSpecialMemory;
220  default:
222  }
223 }
Type
Definition: Type.h:6

Referenced by XboxMemGetMemoryMap().

Variable Documentation

◆ AvailableMemoryMb

ULONG AvailableMemoryMb = 0
static

Definition at line 28 of file xboxmem.c.

Referenced by XboxMemGetMemoryMap(), and XboxMemInit().

◆ FrameBuffer

PVOID FrameBuffer

Definition at line 28 of file xboxvideo.c.

Referenced by XboxMemGetMemoryMap().

◆ FrameBufferSize

ULONG FrameBufferSize

Definition at line 29 of file xboxvideo.c.

Referenced by XboxMemGetMemoryMap(), and XboxVideoInit().

◆ InstalledMemoryMb

ULONG InstalledMemoryMb = 0
static

Definition at line 27 of file xboxmem.c.

Referenced by XboxMemInit().

◆ MultibootInfoPtr

multiboot_info_t* MultibootInfoPtr

◆ NvBase

ULONG NvBase

Definition at line 27 of file xboxvideo.c.

Referenced by NvGetCrtc(), XboxMemInit(), and XboxVideoInit().

◆ XboxMemoryMap

Definition at line 225 of file xboxmem.c.

Referenced by XboxMemGetMemoryMap().