ReactOS  0.4.15-dev-3187-ge372f2b
xboxmem.c
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1 /*
2  * FreeLoader
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License along
15  * with this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17  *
18  * Note: much of this code was based on knowledge and/or code developed
19  * by the Xbox Linux group: http://www.xbox-linux.org
20  */
21 
22 #include <freeldr.h>
23 #include <debug.h>
24 
25 DBG_DEFAULT_CHANNEL(MEMORY);
26 
30 extern ULONG NvBase;
31 extern PVOID FrameBuffer;
32 extern ULONG FrameBufferSize;
33 
34 #define TEST_SIZE 0x200
35 #define TEST_PATTERN1 0xAA
36 #define TEST_PATTERN2 0x55
37 
38 extern VOID
39 SetMemory(
42  SIZE_T Size,
43  TYPE_OF_MEMORY MemoryType);
44 
45 extern VOID
49  SIZE_T Size,
50  TYPE_OF_MEMORY MemoryType,
51  PCHAR Usage);
52 
53 extern ULONG
56 
57 static
58 VOID
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 }
115 
116 VOID
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 }
173 
174 memory_map_t *
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 }
204 
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 }
224 
226 
228 XboxMemGetMemoryMap(ULONG *MemoryMapSize)
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 }
280 
281 /* EOF */
signed char * PCHAR
Definition: retypes.h:7
multiboot_info_t * MultibootInfoPtr
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
#define MAX_BIOS_DESCRIPTORS
Definition: pcbios.h:12
unsigned long mmap_addr
Definition: multiboot.h:109
BIOS_MEMORY_MAP MemoryMap[32]
Definition: loader.c:11
_Must_inspect_result_ _In_ USAGE _In_ USHORT _In_ USAGE Usage
Definition: hidpi.h:382
ULONG FrameBufferSize
Definition: xboxvideo.c:29
ULONG NTAPI READ_PORT_ULONG(IN PULONG Port)
Definition: portio.c:70
IN PVOID IN PVOID IN USHORT IN USHORT Size
Definition: pci.h:361
#define TEST_SIZE
Definition: xboxmem.c:34
VOID ReserveMemory(PFREELDR_MEMORY_DESCRIPTOR MemoryMap, ULONG_PTR BaseAddress, SIZE_T Size, TYPE_OF_MEMORY MemoryType, PCHAR Usage)
Definition: pcmem.c:484
if(dx==0 &&dy==0)
Definition: linetemp.h:174
TYPE_OF_MEMORY XboxMultibootMemoryType(ULONG Type)
Definition: xboxmem.c:206
#define NV2A_FB_CFG0
Definition: xgpu.h:19
int32_t INT
Definition: typedefs.h:58
static VOID XboxInitializePCI(VOID)
Definition: xboxmem.c:59
enum _TYPE_OF_MEMORY TYPE_OF_MEMORY
uint32_t ULONG_PTR
Definition: typedefs.h:65
unsigned long flags
Definition: multiboot.h:96
VOID XboxMemInit(VOID)
Definition: xboxmem.c:117
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
#define FALSE
Definition: types.h:117
#define MB_INFO_FLAG_MEMORY_MAP
Definition: multiboot.h:50
void * PVOID
Definition: retypes.h:9
#define PCI_TYPE1_ADDRESS_PORT
Definition: hardware.h:33
int Count
Definition: noreturn.cpp:7
_In_ HANDLE _Outptr_result_bytebuffer_ ViewSize PVOID * BaseAddress
Definition: mmfuncs.h:404
#define TRACE(s)
Definition: solgame.cpp:4
#define ASSERT(a)
Definition: mode.c:44
struct memory_map memory_map_t
PFREELDR_MEMORY_DESCRIPTOR XboxMemGetMemoryMap(ULONG *MemoryMapSize)
Definition: xboxmem.c:228
memory_map_t * XboxGetMultibootMemoryMap(INT *Count)
Definition: xboxmem.c:175
DBG_DEFAULT_CHANNEL(MEMORY)
Type
Definition: Type.h:6
unsigned long length_high
Definition: multiboot.h:122
PPC_QUAL void __wbinvd(void)
Definition: intrin_ppc.h:759
unsigned char UCHAR
Definition: xmlstorage.h:181
#define TEST_PATTERN2
Definition: xboxmem.c:36
unsigned long base_addr_low
Definition: multiboot.h:119
unsigned long mmap_length
Definition: multiboot.h:108
FREELDR_MEMORY_DESCRIPTOR XboxMemoryMap[MAX_BIOS_DESCRIPTORS+1]
Definition: xboxmem.c:225
#define ERR(fmt,...)
Definition: debug.h:110
struct _PCI_TYPE1_CFG_BITS::@152::@153 bits
ULONG_PTR SIZE_T
Definition: typedefs.h:80
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 int * PULONG
Definition: retypes.h:1
#define NULL
Definition: types.h:112
union _PCI_TYPE1_CFG_BITS::@152 u
static ULONG InstalledMemoryMb
Definition: xboxmem.c:27
#define PCI_TYPE1_DATA_PORT
Definition: hardware.h:34
ULONG NvBase
Definition: xboxvideo.c:27
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
unsigned int ULONG
Definition: retypes.h:1
ULONG PcMemFinalizeMemoryMap(PFREELDR_MEMORY_DESCRIPTOR MemoryMap)
Definition: pcmem.c:547
PVOID FrameBuffer
Definition: xboxvideo.c:28
#define memset(x, y, z)
Definition: compat.h:39