Kernel/arm7 - Stubbing functions, now compiles and links

[tpg/acess2.git] / Kernel / arch / arm7 / include / mm_virt.h

diff --git a/Kernel/arch/arm7/include/mm_virt.h b/Kernel/arch/arm7/include/mm_virt.h
index abbbe6c..bbbe4ce 100644 (file)
--- a/Kernel/arch/arm7/include/mm_virt.h
+++ b/Kernel/arch/arm7/include/mm_virt.h
@@ -5,23 +5,42 @@
 #ifndef _MM_VIRT_H_
 #define _MM_VIRT_H_
 
-#define KERNEL_BASE    0x80000000      // 2GiB
-
 #define MM_USER_MIN    0x00001000
 #define USER_LIB_MAX   0x7F800000
-#define MM_PPD_VFS     0x7F800000
+#define MM_PPD_HANDLES 0x7F800000
+#define MM_TABLE0USER  0x7F900000      // 2 GiB - 16 KiB
+#define MM_TABLE1USER  0x7FC00000      // 2 GiB - 4 MiB
 
 // Page Blocks are 12-bits wide (12 address bits used)
 // Hence, the table is 16KiB large (and must be so aligned)
 // and each block addresses 1MiB of data
 
+// First level table is aligned to 16KiB (restriction of TTBR reg)
+// - VMSAv6 uses two TTBR regs, determined by bit 31
+
+#define KERNEL_BASE    0x80000000      // 2GiB
+
 #define MM_KHEAP_BASE  0x80800000      // 8MiB of kernel code
-#define MM_KHEAP_MAX   0xC0000000      // 1GiB of kernel heap
+#define MM_KHEAP_MAX   0xC0000000      // ~1GiB of kernel heap
 
-#define MM_MODULE_MIN  0xC0000000
+#define MM_MODULE_MIN  0xC0000000      // - 0xD0000000
 #define MM_MODULE_MAX  0xD0000000
 
-#define MM_KERNEL_VFS  0xFF800000      // 
-#define MM_FRACTAL     0xFFE00000      // 2nd last block
+// PMM Data, giving it 256MiB is overkill, but it's unused atm
+#define MM_MAXPHYSPAGE (1024*1024)
+// 2^(32-12) max pages
+// 8.125 bytes per page (for bitmap allocation)
+// = 8.125 MiB
+#define MM_PMM_BASE    0xE0000000
+#define MM_PMM_END     0xF0000000
+
+#define MM_HWMAP_BASE  0xF0000000      // Ent 0xF00
+#define MM_HWMAP_END   0xFE000000
+#define MM_TMPMAP_BASE 0xFE000000
+#define MM_TMPMAP_END  0xFF000000
+
+#define MM_KERNEL_VFS  0xFF000000      // 
+#define MM_TABLE1KERN  0xFF800000      // - 0x???????? 4MiB
+#define MM_TABLE0KERN  0xFFC00000      // - 0xFFE04000 16KiB
 
 #endif