pass the location of the m5 backdoor via the m5AlphaAccess variable

only compile one console

console/Makefile:
    Now that the location of the m5 backdoor is passed into the
    console via the m5AlphaAccess variable, we only need to
    compile one console, and don't need to define TLASER or TSUNAMI
console/console.c:
    Don't hardcode the location of the AlphaAccess structure, but
    rely on m5 to pass in the correct value.
    Setup "volatile struct AlphaAccess *m5AlphaAccess" for use and
    get rid of the hardcoded usage.

diff --git a/system/alpha/console/Makefile b/system/alpha/console/Makefile
index 728ab7a8d44e010382cea431f19658af442cce62..e29c02b1ac533cea7baeb4de3acc2b80463e5a8b 100644 (file)
--- a/system/alpha/console/Makefile
+++ b/system/alpha/console/Makefile
@@ -36,34 +36,23 @@ LD=$(CROSS_COMPILE)ld
 
 DBMENTRY= fffffc0000010000
 CFLAGS=-I . -I ../h -I$(M5)/dev -fno-builtin -Wa,-m21164
-OBJS=dbmentry.o printf.o paljtokern.o paljtoslave.o
-TLOBJS+=$(OBJS) console_tl.o
-TSOBJS+=$(OBJS) console_ts.o
+OBJS=dbmentry.o printf.o paljtokern.o paljtoslave.o console.o
 
 ### Make sure that the M5 variable is set ###
 ifndef M5
 $(error The M5 variable must be set)
 endif
 
-all: console_tl console_ts
+all: console
 
 %.o: %.S
        $(CC) $(CFLAGS) -nostdinc -o $@ -c $<
 
-console_ts.o: console.c
-       $(CC)  -g3 $(CFLAGS) -D TSUNAMI -o $@ -c $<
-
-console_tl.o: console.c
-       $(CC)  -g3 $(CFLAGS) -D TLASER  -o $@ -c $< 
-
-printf.o: printf.c 
+%.o: %.c
        $(CC)  -g3 $(CFLAGS) -o $@ -c $<
 
-console_ts: $(TSOBJS)
-       $(LD) -o console_ts -N -Ttext $(DBMENTRY) -non_shared $(TSOBJS) -lc
-
-console_tl: $(TLOBJS)
-       $(LD) -o console_tl -N -Ttext $(DBMENTRY) -non_shared $(TLOBJS) -lc
+console: $(OBJS)
+       $(LD) -o console -N -Ttext $(DBMENTRY) -non_shared $(OBJS) -lc
 
 clean:
-       rm -f *.o console_t?
+       rm -f *.o console

diff --git a/system/alpha/console/console.c b/system/alpha/console/console.c
index 1cd5f1a6c449dca788ed58d89f1116d61d02721b..657242dadcb7d0cfb00ba2b3fef6c57ebc175217 100644 (file)
--- a/system/alpha/console/console.c
+++ b/system/alpha/console/console.c
@@ -73,14 +73,6 @@
 #define K1BASE 0xfffffc8000000000
 #define KSEG_TO_PHYS(x) (((ulong)x) & ~KSEG)
 
-#ifdef TSUNAMI
-#define ALPHA_ACCESS_BASE 0xfffffd0200000000
-#elif TLASER
-#define ALPHA_ACCESS_BASE 0xfffffc8000a00000
-#else
-#error TSUNAMI/TLASER not defined.
-#endif
-
 #define ROUNDUP8(x) ((ulong)(((ulong)x)+7) & ~7)
 #define ROUNDUP128(x) ((ulong)(((ulong)x) + 127) & ~127)
 #define ROUNDUP8K(x) ((ulong)(((ulong)(x)) + 8191) & ~8191)
@@ -113,6 +105,7 @@ void JToKern(char *bootadr, ulong rpb_percpu, ulong free_pfn, ulong k_argc,
 void JToPal(ulong bootadr);
 void SlaveLoop(int cpu);
 
+volatile struct AlphaAccess *m5AlphaAccess;
 struct AlphaAccess m5Conf;
 
 ulong theLock;
@@ -146,15 +139,13 @@ InitConsole()
 char
 GetChar()
 {
-    struct AlphaAccess *k1Conf = (struct AlphaAccess *)(ALPHA_ACCESS_BASE);
-    return k1Conf->inputChar;
+    return m5AlphaAccess->inputChar;
 }
 
 void
 PutChar(char c)
 {
-    struct AlphaAccess *k1Conf = (struct AlphaAccess *)(ALPHA_ACCESS_BASE);
-    k1Conf->outputChar = c;
+    m5AlphaAccess->outputChar = c;
 }
 
 int
@@ -167,36 +158,35 @@ int
 main(int argc, char **argv)
 {
     int x, i;
-    struct AlphaAccess *k1Conf = (struct AlphaAccess *)(ALPHA_ACCESS_BASE);
     uint *k1ptr, *ksegptr;
 
     InitConsole();
-    printf_lock("M5 console\n");
+    printf_lock("M5 console: m5AlphaAccess @ 0x%x\n", m5AlphaAccess);
 
     /*
      * get configuration from backdoor
      */
-    m5Conf.last_offset = k1Conf->last_offset;
+    m5Conf.last_offset = m5AlphaAccess->last_offset;
     printf_lock("Got Configuration %d\n", m5Conf.last_offset);
 
-    m5Conf.last_offset = k1Conf->last_offset;
-    m5Conf.version = k1Conf->version;
-    m5Conf.numCPUs = k1Conf->numCPUs;
-    m5Conf.intrClockFrequency = k1Conf->intrClockFrequency;
-    m5Conf.cpuClock = k1Conf->cpuClock;
-    m5Conf.mem_size = k1Conf->mem_size;
-    m5Conf.kernStart = k1Conf->kernStart;
-    m5Conf.kernEnd = k1Conf->kernEnd;
-    m5Conf.entryPoint = k1Conf->entryPoint;
-    m5Conf.diskUnit = k1Conf->diskUnit;
-    m5Conf.diskCount = k1Conf->diskCount;
-    m5Conf.diskPAddr = k1Conf->diskPAddr;
-    m5Conf.diskBlock = k1Conf->diskBlock;
-    m5Conf.diskOperation = k1Conf->diskOperation;
-    m5Conf.outputChar = k1Conf->outputChar;
-    m5Conf.inputChar = k1Conf->inputChar;
-    m5Conf.bootStrapImpure = k1Conf->bootStrapImpure;
-    m5Conf.bootStrapCPU = k1Conf->bootStrapCPU;
+    m5Conf.last_offset = m5AlphaAccess->last_offset;
+    m5Conf.version = m5AlphaAccess->version;
+    m5Conf.numCPUs = m5AlphaAccess->numCPUs;
+    m5Conf.intrClockFrequency = m5AlphaAccess->intrClockFrequency;
+    m5Conf.cpuClock = m5AlphaAccess->cpuClock;
+    m5Conf.mem_size = m5AlphaAccess->mem_size;
+    m5Conf.kernStart = m5AlphaAccess->kernStart;
+    m5Conf.kernEnd = m5AlphaAccess->kernEnd;
+    m5Conf.entryPoint = m5AlphaAccess->entryPoint;
+    m5Conf.diskUnit = m5AlphaAccess->diskUnit;
+    m5Conf.diskCount = m5AlphaAccess->diskCount;
+    m5Conf.diskPAddr = m5AlphaAccess->diskPAddr;
+    m5Conf.diskBlock = m5AlphaAccess->diskBlock;
+    m5Conf.diskOperation = m5AlphaAccess->diskOperation;
+    m5Conf.outputChar = m5AlphaAccess->outputChar;
+    m5Conf.inputChar = m5AlphaAccess->inputChar;
+    m5Conf.bootStrapImpure = m5AlphaAccess->bootStrapImpure;
+    m5Conf.bootStrapCPU = m5AlphaAccess->bootStrapCPU;
 
     if (m5Conf.version != ALPHA_ACCESS_VERSION)  {
         panic("Console version mismatch. Console expects %d. has %d \n",
@@ -776,12 +766,10 @@ unixBoot(int go, int argc, char **argv)
    * MP bootstrap
    */
     for (i = 1; i < m5Conf.numCPUs; i++) {
-        volatile struct AlphaAccess *k1Conf;
-        k1Conf = (volatile struct AlphaAccess *)(ALPHA_ACCESS_BASE);
         printf_lock("Bootstraping CPU %d with sp=0x%x\n",
                     i, bootStrapImpure[i]);
-        k1Conf->bootStrapImpure = bootStrapImpure[i];
-        k1Conf->bootStrapCPU = i;
+        m5AlphaAccess->bootStrapImpure = bootStrapImpure[i];
+        m5AlphaAccess->bootStrapCPU = i;
     }
 
     /*
@@ -866,7 +854,6 @@ struct {
 void
 DeviceOperation(long op, long channel, long count, long address, long block)
 {
-    struct AlphaAccess *k1Conf = (struct AlphaAccess *)(ALPHA_ACCESS_BASE);
     long pAddr;
 
     if (strcmp(deviceState[channel].name, BOOTDEVICE_NAME )) {
@@ -877,10 +864,10 @@ DeviceOperation(long op, long channel, long count, long address, long block)
         panic("DeviceRead: request out of range \n");
     }
 
-    k1Conf->diskCount = count;
-    k1Conf->diskPAddr = pAddr;
-    k1Conf->diskBlock = block;
-    k1Conf->diskOperation = op; /* launch */
+    m5AlphaAccess->diskCount = count;
+    m5AlphaAccess->diskPAddr = pAddr;
+    m5AlphaAccess->diskBlock = block;
+    m5AlphaAccess->diskOperation = op; /* launch */
 }
 
 /*