chipram.c update

[Geert U. <ge...@li...>]

While getting rid of occurrencies of my old email address, I sent following
patch to Linus (i.e. keep in sync with the corresponding m68k version).

--- native-2.4.0-test3-pre6/arch/ppc/amiga/chipram.c.orig	Sun Oct 10 11:10:32 1999
+++ native-2.4.0-test3-pre6/arch/ppc/amiga/chipram.c	Sat Jul  8 14:39:57 2000
@@ -1,15 +1,14 @@
 /*
 **  linux/amiga/chipram.c
 **
-**      Modified 03-May-94 by Geert Uytterhoeven
-**                           (Gee...@cs...)
+**      Modified 03-May-94 by Geert Uytterhoeven <ge...@li...>
 **          - 64-bit aligned allocations for full AGA compatibility
 */
 
-#include <linux/config.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/zorro.h>
 #include <asm/amigahw.h>
 
 struct chip_desc {
@@ -25,6 +24,8 @@
 u_long amiga_chip_size;
 static unsigned long chipavail;
 
+static struct resource chipram = { "Chip RAM", 0 };
+
 unsigned long amiga_chip_avail( void )
 {
 #ifdef DEBUG
@@ -34,8 +35,7 @@
 }
 
 
-__init
-void amiga_chip_init (void)
+void __init amiga_chip_init (void)
 {
   struct chip_desc *dp;
 
@@ -49,6 +49,8 @@
    */
   amiga_chip_size -= 0x4000;
 #endif
+  chipram.end = amiga_chip_size-1;
+  request_resource(&iomem_resource, &chipram);
 
   /* initialize start boundary */
 
@@ -72,7 +74,7 @@
 #endif
 }
 
-void *amiga_chip_alloc (long size)
+void *amiga_chip_alloc(long size, const char *name)
 {
 	/* last chunk */
 	struct chip_desc *dp;
@@ -82,7 +84,7 @@
 	size = (size + 7) & ~7;
 
 #ifdef DEBUG
-   printk("chip_alloc: allocate %ld bytes\n", size);
+   printk("amiga_chip_alloc: allocate %ld bytes\n", size);
 #endif
 
 	/*
@@ -108,14 +110,14 @@
 		dp = DP((unsigned long)ptr + dp->length);
 		dp->alloced = 1;
 #ifdef DEBUG
-		printk ("chip_alloc: no split\n");
+		printk ("amiga_chip_alloc: no split\n");
 #endif
 	} else {
 		/* split the extent; use the end part */
 		long newsize = dp->length - (2*sizeof(*dp) + size);
 
 #ifdef DEBUG
-		printk ("chip_alloc: splitting %d to %ld\n", dp->length,
+		printk ("amiga_chip_alloc: splitting %d to %ld\n", dp->length,
 			newsize);
 #endif
 		dp->length = newsize;
@@ -134,14 +136,18 @@
 	}
 
 #ifdef DEBUG
-	printk ("chip_alloc: returning %p\n", ptr);
+	printk ("amiga_chip_alloc: returning %p\n", ptr);
 #endif
 
 	if ((unsigned long)ptr & 7)
-		panic("chip_alloc: alignment violation\n");
+		panic("amiga_chip_alloc: alignment violation\n");
 
     chipavail -= size + (2*sizeof(*dp)); /*MILAN*/
 
+    if (!request_mem_region(ZTWO_PADDR(ptr), size, name))
+	printk(KERN_WARNING "amiga_chip_alloc: region of size %ld at 0x%08lx "
+	       "is busy\n", size, ZTWO_PADDR(ptr));
+
     return ptr;
 }
 
@@ -156,6 +162,7 @@
 #endif
 	/* deallocate the chunk */
 	sdp->alloced = edp->alloced = 0;
+	release_mem_region(ZTWO_PADDR(ptr), sdp->length);
 
 	/* check if we should merge with the previous chunk */
 	if (!sdp->first && !sdp[-1].alloced) {

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- Linux/{m68k~Amiga,PPC~CHRP} -- ge...@li...

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds