Attempt to doff the pointy hat: implement 'hw.realmem' on remaining

architectures.  Pointed out by O'Brien, ScottL via email.

Reviewed by:	obrien (various)

5 files changed, 14 insertions, 0 deletions

diff --git a/sys/alpha/alpha/machdep.c b/sys/alpha/alpha/machdep.c
index b965af9..cd18df2 100644
--- a/sys/alpha/alpha/machdep.c
+++ b/sys/alpha/alpha/machdep.c
@@ -194,6 +194,7 @@ SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL)
 struct msgbuf *msgbufp=0;
 
 long Maxmem = 0;
+long realmem = 0;
 
 long	totalphysmem;		/* total amount of physical memory in system */
 long	resvmem;		/* amount of memory reserved for PROM */
@@ -250,6 +251,7 @@ cpu_startup(dummy)
 #endif
 	printf("real memory  = %ld (%ld MB)\n", alpha_ptob(Maxmem),
 	    alpha_ptob(Maxmem) / 1048576);
+	realmem = alpha_ptob(Maxmem);
 
 	/*
 	 * Display any holes after the first chunk of extended memory.
diff --git a/sys/ia64/ia64/machdep.c b/sys/ia64/ia64/machdep.c
index 7492c4e..5c281b0 100644
--- a/sys/ia64/ia64/machdep.c
+++ b/sys/ia64/ia64/machdep.c
@@ -143,6 +143,7 @@ SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL)
 struct msgbuf *msgbufp=0;
 
 long Maxmem = 0;
+long realmem = 0;
 
 vm_offset_t phys_avail[100];
 
@@ -246,6 +247,7 @@ cpu_startup(dummy)
 #endif
 	printf("real memory  = %ld (%ld MB)\n", ia64_ptob(Maxmem),
 	    ia64_ptob(Maxmem) / 1048576);
+	realmem = ia64_ptob(Maxmem);
 
 	/*
 	 * Display any holes after the first chunk of extended memory.
diff --git a/sys/pc98/i386/machdep.c b/sys/pc98/i386/machdep.c
index 3a0e7ab..7779104 100644
--- a/sys/pc98/i386/machdep.c
+++ b/sys/pc98/i386/machdep.c
@@ -196,6 +196,7 @@ static void freebsd4_sendsig(sig_t catcher, int sig, sigset_t *mask,
 #endif
 
 long Maxmem = 0;
+long realmem = 0;
 
 vm_paddr_t phys_avail[10];
 
@@ -228,6 +229,9 @@ cpu_startup(dummy)
 #endif
 	printf("real memory  = %ju (%ju MB)\n", ptoa((uintmax_t)Maxmem),
 	    ptoa((uintmax_t)Maxmem) / 1048576);
+	/* This truncates if memory > 4GB, is this possible on PC98? */
+	realmem = (long)ptoa((uintmax_t)Maxmem);
+
 	/*
 	 * Display any holes after the first chunk of extended memory.
 	 */
diff --git a/sys/pc98/pc98/machdep.c b/sys/pc98/pc98/machdep.c
index 3a0e7ab..7779104 100644
--- a/sys/pc98/pc98/machdep.c
+++ b/sys/pc98/pc98/machdep.c
@@ -196,6 +196,7 @@ static void freebsd4_sendsig(sig_t catcher, int sig, sigset_t *mask,
 #endif
 
 long Maxmem = 0;
+long realmem = 0;
 
 vm_paddr_t phys_avail[10];
 
@@ -228,6 +229,9 @@ cpu_startup(dummy)
 #endif
 	printf("real memory  = %ju (%ju MB)\n", ptoa((uintmax_t)Maxmem),
 	    ptoa((uintmax_t)Maxmem) / 1048576);
+	/* This truncates if memory > 4GB, is this possible on PC98? */
+	realmem = (long)ptoa((uintmax_t)Maxmem);
+
 	/*
 	 * Display any holes after the first chunk of extended memory.
 	 */
diff --git a/sys/sparc64/sparc64/machdep.c b/sys/sparc64/sparc64/machdep.c
index bc17295..1147a8e 100644
--- a/sys/sparc64/sparc64/machdep.c
+++ b/sys/sparc64/sparc64/machdep.c
@@ -118,6 +118,7 @@ int kernel_tlb_slots;
 
 int cold = 1;
 long Maxmem;
+long realmem;
 
 char pcpu0[PCPU_PAGES * PAGE_SIZE];
 struct trapframe frame0;
@@ -198,6 +199,7 @@ cpu_startup(void *arg)
 		physsz += sparc64_memreg[i].mr_size;
 	printf("real memory  = %lu (%lu MB)\n", physsz,
 	    physsz / (1024 * 1024));
+	realmem = (long)physsz;
 
 	vm_ksubmap_init(&kmi);