Adding methods to inquire about virtual memory setup.

svn path=/branches/powerpc/; revision=23858

diff --git a/reactos/boot/freeldr/freeldr/arch/powerpc/mach.c b/reactos/boot/freeldr/freeldr/arch/powerpc/mach.c
index 272ad57..5d22bf5 100644 (file)
--- a/reactos/boot/freeldr/freeldr/arch/powerpc/mach.c
+++ b/reactos/boot/freeldr/freeldr/arch/powerpc/mach.c
@@ -35,7 +35,8 @@ volatile char *video_mem = 0;
 void le_swap( void *start_addr_v, 
               void *end_addr_v, 
               void *target_addr_v ) {
-    long *start_addr = (long *)ROUND_DOWN((long)start_addr_v,8), 
+    long 
+       *start_addr = (long *)ROUND_DOWN((long)start_addr_v,8), 
         *end_addr = (long *)ROUND_UP((long)end_addr_v,8), 
         *target_addr = (long *)ROUND_DOWN((long)target_addr_v,8);
     long tmp;
@@ -377,8 +378,114 @@ BOOLEAN PpcDiskNormalizeSystemPath(char *SystemPath, unsigned Size) {
 
 typedef unsigned int uint32_t;
 
+int GetMSR() {
+    register int res asm ("r3");
+    __asm__("mfmsr 3");
+    return res;
+}
+
+int GetSR(int n) {
+    register int res asm ("r3");
+    switch( n ) {
+    case 0:
+       __asm__("mfsr 3,0");
+       break;
+    case 1:
+       __asm__("mfsr 3,1");
+       break;
+    case 2:
+       __asm__("mfsr 3,2");
+       break;
+    case 3:
+       __asm__("mfsr 3,3");
+       break;
+    case 4:
+       __asm__("mfsr 3,4");
+       break;
+    case 5:
+       __asm__("mfsr 3,5");
+       break;
+    case 6:
+       __asm__("mfsr 3,6");
+       break;
+    case 7:
+       __asm__("mfsr 3,7");
+       break;
+    case 8:
+       __asm__("mfsr 3,8");
+       break;
+    case 9:
+       __asm__("mfsr 3,9");
+       break;
+    case 10:
+       __asm__("mfsr 3,10");
+       break;
+    case 11:
+       __asm__("mfsr 3,11");
+       break;
+    case 12:
+       __asm__("mfsr 3,12");
+       break;
+    case 13:
+       __asm__("mfsr 3,13");
+       break;
+    case 14:
+       __asm__("mfsr 3,14");
+       break;
+    case 15:
+       __asm__("mfsr 3,15");
+       break;
+    }
+    return res;
+}
+
+void GetBat( int bat, int inst, int *batHi, int *batLo ) {
+    register int bh asm("r3"), bl asm("r4");
+    if( inst ) {
+       switch( bat ) {
+       case 0:
+           __asm__("mfibatu 3,0");
+           __asm__("mfibatl 4,0");
+           break;
+       case 1:
+           __asm__("mfibatu 3,1");
+           __asm__("mfibatl 4,1");
+           break;
+       case 2:
+           __asm__("mfibatu 3,2");
+           __asm__("mfibatl 4,2");
+           break;
+       case 3:
+           __asm__("mfibatu 3,3");
+           __asm__("mfibatl 4,3");
+           break;
+       }
+    } else {
+       switch( bat ) {
+       case 0:
+           __asm__("mfdbatu 3,0");
+           __asm__("mfdbatl 4,0");
+           break;
+       case 1:
+           __asm__("mfdbatu 3,1");
+           __asm__("mfdbatl 4,1");
+           break;
+       case 2:
+           __asm__("mfdbatu 3,2");
+           __asm__("mfdbatl 4,2");
+           break;
+       case 3:
+           __asm__("mfdbatu 3,3");
+           __asm__("mfdbatl 4,3");
+           break;
+       }
+    }
+    *batHi = bh;
+    *batLo = bl;
+}
+
 void PpcInit( of_proxy the_ofproxy ) {
-    int len, stdin_handle_chosen;
+    int i, len, stdin_handle_chosen, bathi, batlo;
     ofproxy = the_ofproxy;
 
     ofw_print_string("Freeldr PowerPC Init\n");
@@ -405,6 +512,22 @@ void PpcInit( of_proxy the_ofproxy ) {
     MachVtbl.ConsGetCh   = PpcConsGetCh;
 
     printf( "stdin_handle is %x\n", stdin_handle );
+    /* List MMU Status */
+    printf("MSR %x\n", GetMSR());
+
+    for( i = 0; i < 16; i++ ) {
+       printf("SR%d %x\n", i, GetSR(i));
+    }
+
+    for( i = 0; i < 4; i++ ) {
+       GetBat( i, 0, &bathi, &batlo );
+       printf("DBAT%d %x:%x\n", i, bathi, batlo);
+    }
+
+    for( i = 0; i < 4; i++ ) {
+       GetBat( i, 1, &bathi, &batlo );
+       printf("IBAT%d %x:%x\n", i, bathi, batlo);
+    }
 
     MachVtbl.VideoClearScreen = PpcVideoClearScreen;
     MachVtbl.VideoSetDisplayMode = PpcVideoSetDisplayMode;