Changeset 624 for trunk/boot/tsar_mips32/boot_config.h

Timestamp:

Mar 12, 2019, 1:37:38 PM (5 years ago)

Author:

alain

Message:

Fix several bugs to use the instruction MMU in kernel mode
in replacement of the instruction address extension register,
and remove the "kentry" segment.

This version is running on the tsar_generic_iob" platform.

One interesting bug: the cp0_ebase defining the kernel entry point
(for interrupts, exceptions and syscalls) must be initialized
early in kernel_init(), because the VFS initialisation done by
kernel_ini() uses RPCs, and RPCs uses Inter-Processor-Interrup.

File:

• trunk/boot/tsar_mips32/boot_config.h (modified) (2 diffs)

trunk/boot/tsar_mips32/boot_config.h

@@ -7 +7 @@
 
 // Debug options
+#define DEBUG_BOOT_MULTI    0        
 #define DEBUG_BOOT_INFO     0
 #define DEBUG_BOOT_ELF      0
@@ -13 +14 @@
 #define DEBUG_BOOT_FAT32    0
 
-// Core identifier format
-#define USE_FIXED_FORMAT    1
+// Boot cluster definition 
+#define BOOT_CLUSTER_CXY    0
 
 // cache line
 #define CACHE_LINE_SIZE     64
 
-// Preloader temporary segment
+// paths for kernel.elf and arch_info.bin files
+#define ARCHINFO_PATHNAME   "arch_info.bin"
+#define KERNEL_PATHNAME     "bin/kernel/kernel.elf"
+
+// Preloader segment
 #define PRELOADER_BASE      0x00000000      // 'preloader' physical base address
 #define PRELOADER_MAX_SIZE  0x00004000      // 'preloader' max size
 
-// kentry segment 
-#define KENTRY_BASE         0x00004000      // 'kentry' segment physical base address       
-#define KENTRY_MAX_SIZE     0x00004000      // 'kentry' segment max size
-
 // kcode segment
-#define KCODE_BASE          0x00008000      // 'kcode' segment physical base address
-#define KCODE_MAX_SIZE      0x000F8000      // 'kcode' + 'kdata' segments max size
+#define KCODE_BASE          0x00004000      // 'kcode' segment physical base address
+#define KCODE_MAX_SIZE      0x000FC000      // 'kcode' + 'kdata' segments max size
 
 // boot.elf file temporary buffer
-#define BOOT_BASE           0x00100000      // 'boot.elf' file physical base address   
-#define BOOT_MAX_SIZE       0x00010000      // 'boot.elf' file max size
+#define BOOT_BASE           0x00200000      // 'boot.elf' file physical base address   
+#define BOOT_MAX_SIZE       0x00010000      // 'boot.elf' file max size (64 Kbytes)
 
 // arch_info file temporary buffer
-#define ARCHINFO_BASE       0x00200000      // 'arch_info.bin' file physical base address
-#define ARCHINFO_MAX_SIZE   0x00010000      // 'arch_info.bin' file max size
+#define ARCHINFO_BASE       0x00300000      // 'arch_info.bin' file physical base address
+#define ARCHINFO_MAX_SIZE   0x00010000      // 'arch_info.bin' file max size (64 Kbytes)
 
 // kernel.elf file temporary buffer
-#define KERN_BASE           0x00300000      // 'kernel.elf' file base address 
+#define KERN_BASE           0x00400000      // 'kernel.elf' file base address 
 #define KERN_MAX_SIZE       0x00200000      // 'kernel.elf' file max size
 
 // Temporary stacks segments
-#define BOOT_STACK_BASE     0x00504000      // Boot stack base address
+#define BOOT_STACK_BASE     0x00600000      // Boot stack base address
 #define BOOT_STACK_SIZE     0x00004000      // Boot stack size (16Kb)