ReactOS  0.4.14-dev-991-g696cdc6
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 PVOID FrameBuffer;
31 extern ULONG FrameBufferSize;
32 
33 #define TEST_SIZE 0x200
34 #define TEST_PATTERN1 0xAA
35 #define TEST_PATTERN2 0x55
36 
37 extern VOID
38 SetMemory(
41  SIZE_T Size,
42  TYPE_OF_MEMORY MemoryType);
43 
44 extern VOID
48  SIZE_T Size,
49  TYPE_OF_MEMORY MemoryType,
50  PCHAR Usage);
51 
52 extern ULONG
55 
56 VOID
58 {
59  UCHAR ControlRegion[TEST_SIZE];
60  PVOID MembaseTop = (PVOID)(64 * 1024 * 1024);
61  PVOID MembaseLow = (PVOID)0;
62 
63  (*(PULONG)(0xfd000000 + 0x100200)) = 0x03070103;
64  (*(PULONG)(0xfd000000 + 0x100204)) = 0x11448000;
65 
66  WRITE_PORT_ULONG((ULONG*) 0xcf8, CONFIG_CMD(0, 0, 0x84));
67  WRITE_PORT_ULONG((ULONG*) 0xcfc, 0x7ffffff); /* Prep hardware for 128 Mb */
68 
69  InstalledMemoryMb = 64;
70  memset(ControlRegion, TEST_PATTERN1, TEST_SIZE);
71  memset(MembaseTop, TEST_PATTERN1, TEST_SIZE);
72  __wbinvd();
73 
74  if (memcmp(MembaseTop, ControlRegion, TEST_SIZE) == 0)
75  {
76  /* Looks like there is memory .. maybe a 128MB box */
77  memset(ControlRegion, TEST_PATTERN2, TEST_SIZE);
78  memset(MembaseTop, TEST_PATTERN2, TEST_SIZE);
79  __wbinvd();
80  if (memcmp(MembaseTop, ControlRegion, TEST_SIZE) == 0)
81  {
82  /* Definitely looks like there is memory */
83  if (memcmp(MembaseLow, ControlRegion, TEST_SIZE) == 0)
84  {
85  /* Hell, we find the Test-string at 0x0 too! */
86  InstalledMemoryMb = 64;
87  }
88  else
89  {
90  InstalledMemoryMb = 128;
91  }
92  }
93  }
94 
95  /* Set hardware for amount of memory detected */
96  WRITE_PORT_ULONG((ULONG*) 0xcf8, CONFIG_CMD(0, 0, 0x84));
97  WRITE_PORT_ULONG((ULONG*) 0xcfc, InstalledMemoryMb * 1024 * 1024 - 1);
98 
100 }
101 
102 memory_map_t *
104 {
106 
107  if (!MultibootInfoPtr)
108  {
109  ERR("Multiboot info structure not found!\n");
110  return NULL;
111  }
112 
114  {
115  ERR("Multiboot memory map is not passed!\n");
116  return NULL;
117  }
118 
120 
121  if (!MemoryMap ||
123  MultibootInfoPtr->mmap_length % sizeof(memory_map_t) != 0)
124  {
125  ERR("Multiboot memory map structure is malformed!\n");
126  return NULL;
127  }
128 
130  return MemoryMap;
131 }
132 
135 {
136  switch (Type)
137  {
138  case 0: // Video RAM
140  case 1: // Available RAM
141  return LoaderFree;
142  case 3: // ACPI area
144  case 4: // Hibernation area
145  return LoaderSpecialMemory;
146  case 5: // Reserved or invalid memory
147  return LoaderSpecialMemory;
148  default:
150  }
151 }
152 
154 
156 XboxMemGetMemoryMap(ULONG *MemoryMapSize)
157 {
158  memory_map_t * MbMap;
159  INT Count, i;
160 
161  TRACE("XboxMemGetMemoryMap()\n");
162 
164  if (MbMap)
165  {
166  /* Obtain memory map via multiboot spec */
167 
168  for (i = 0; i < Count; i++, MbMap++)
169  {
170  TRACE("i = %d, base_addr_low = 0x%p, length_low = 0x%p\n", i, MbMap->base_addr_low, MbMap->length_low);
171 
172  if (MbMap->base_addr_high > 0 || MbMap->length_high > 0)
173  {
174  ERR("Memory descriptor base or size is greater than 4 GB, should not happen on Xbox!\n");
175  ASSERT(FALSE);
176  }
177 
179  MbMap->base_addr_low,
180  MbMap->length_low,
181  XboxMultibootMemoryType(MbMap->type));
182  }
183  }
184  else
185  {
186  /* Synthesize memory map */
187 
188  /* Available RAM block */
190  0,
191  AvailableMemoryMb * 1024 * 1024,
192  LoaderFree);
193 
194  if (FrameBufferSize != 0)
195  {
196  /* Video memory */
201  "Video memory");
202  }
203  }
204 
205  *MemoryMapSize = PcMemFinalizeMemoryMap(XboxMemoryMap);
206  return XboxMemoryMap;
207 }
208 
209 /* EOF */
signed char * PCHAR
Definition: retypes.h:7
multiboot_info_t * MultibootInfoPtr
int memcmp(void *Buffer1, void *Buffer2, ACPI_SIZE Count)
Definition: utclib.c:112
#define MAX_BIOS_DESCRIPTORS
Definition: pcbios.h:12
Type
Definition: Type.h:6
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:28
_Inout_ __drv_aliasesMem PSLIST_ENTRY _Inout_ PSLIST_ENTRY _In_ ULONG Count
Definition: exfuncs.h:1015
#define TEST_SIZE
Definition: xboxmem.c:33
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:134
int32_t INT
Definition: typedefs.h:57
enum _TYPE_OF_MEMORY TYPE_OF_MEMORY
uint32_t ULONG_PTR
Definition: typedefs.h:64
unsigned long flags
Definition: multiboot.h:96
VOID XboxMemInit(VOID)
Definition: xboxmem.c:57
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
static ULONG AvailableMemoryMb
Definition: xboxmem.c:28
#define TEST_PATTERN1
Definition: xboxmem.c:34
VOID NTAPI WRITE_PORT_ULONG(IN PULONG Port, IN ULONG Value)
Definition: portio.c:123
smooth NULL
Definition: ftsmooth.c:416
#define MB_INFO_FLAG_MEMORY_MAP
Definition: multiboot.h:50
void * PVOID
Definition: retypes.h:9
_In_ HANDLE _Outptr_result_bytebuffer_ ViewSize PVOID * BaseAddress
Definition: mmfuncs.h:404
#define TRACE(s)
Definition: solgame.cpp:4
if(!(yy_init))
Definition: macro.lex.yy.c:714
struct memory_map memory_map_t
PFREELDR_MEMORY_DESCRIPTOR XboxMemGetMemoryMap(ULONG *MemoryMapSize)
Definition: xboxmem.c:156
memory_map_t * XboxGetMultibootMemoryMap(INT *Count)
Definition: xboxmem.c:103
DBG_DEFAULT_CHANNEL(MEMORY)
unsigned long length_high
Definition: multiboot.h:122
PPC_QUAL void __wbinvd(void)
Definition: intrin_ppc.h:759
ASSERT((InvokeOnSuccess||InvokeOnError||InvokeOnCancel) ?(CompletionRoutine !=NULL) :TRUE)
unsigned char UCHAR
Definition: xmlstorage.h:181
#define TEST_PATTERN2
Definition: xboxmem.c:35
unsigned long base_addr_low
Definition: multiboot.h:119
IN PVOID IN PVOID IN USHORT IN USHORT Size
Definition: pci.h:359
unsigned long mmap_length
Definition: multiboot.h:108
FREELDR_MEMORY_DESCRIPTOR XboxMemoryMap[MAX_BIOS_DESCRIPTORS+1]
Definition: xboxmem.c:153
#define ERR(fmt,...)
Definition: debug.h:109
ULONG_PTR SIZE_T
Definition: typedefs.h:79
unsigned long length_low
Definition: multiboot.h:121
unsigned long base_addr_high
Definition: multiboot.h:120
unsigned int * PULONG
Definition: retypes.h:1
#define CONFIG_CMD(bus, dev_fn, where)
Definition: hardware.h:23
static ULONG InstalledMemoryMb
Definition: xboxmem.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:27
#define memset(x, y, z)
Definition: compat.h:39