[linuxsh-cvs] CVS: linux/arch/sh/kernel/cpu/sh4 probe.c,1.10,1.11

[Paul M. <le...@us...>]

Update of /cvsroot/linuxsh/linux/arch/sh/kernel/cpu/sh4
In directory sc8-pr-cvs6.sourceforge.net:/tmp/cvs-serv7459/arch/sh/kernel/cpu/sh4

Modified Files:
	probe.c 
Log Message:
Figure out the cache desc entry_mask at runtime, and remove hard-coded
assumption about the cacheline size.



Index: probe.c
===================================================================
RCS file: /cvsroot/linuxsh/linux/arch/sh/kernel/cpu/sh4/probe.c,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -d -r1.10 -r1.11
--- probe.c	10 Aug 2006 10:05:46 -0000	1.10
+++ probe.c	10 Aug 2006 10:24:31 -0000	1.11
@@ -38,7 +38,6 @@
 	 */
 	cpu_data->icache.way_incr	= (1 << 13);
 	cpu_data->icache.entry_shift	= 5;
-	cpu_data->icache.entry_mask	= 0x1fe0;
 	cpu_data->icache.sets		= 256;
 	cpu_data->icache.ways		= 1;
 	cpu_data->icache.linesz		= L1_CACHE_BYTES;
@@ -48,7 +47,6 @@
 	 */
 	cpu_data->dcache.way_incr	= (1 << 14);
 	cpu_data->dcache.entry_shift	= 5;
-	cpu_data->dcache.entry_mask	= 0x3fe0;
 	cpu_data->dcache.sets		= 512;
 	cpu_data->dcache.ways		= 1;
 	cpu_data->dcache.linesz		= L1_CACHE_BYTES;
@@ -173,21 +171,26 @@
 		size = sizes[(cvr >> 20) & 0xf];
 		cpu_data->icache.way_incr	= (size >> 1);
 		cpu_data->icache.sets		= (size >> 6);
-		cpu_data->icache.entry_mask	=
-			(cpu_data->icache.way_incr - (1 << 5));
+
 	}
 
+	/* Setup the rest of the I-cache info */
+	cpu_data->icache.entry_mask = cpu_data->icache.way_incr -
+				      cpu_data->icache.linesz;
+
 	cpu_data->icache.way_size = cpu_data->icache.sets *
 				    cpu_data->icache.linesz;
 
+	/* And the rest of the D-cache */
 	if (cpu_data->dcache.ways > 1) {
 		size = sizes[(cvr >> 16) & 0xf];
 		cpu_data->dcache.way_incr	= (size >> 1);
 		cpu_data->dcache.sets		= (size >> 6);
-		cpu_data->dcache.entry_mask	=
-			(cpu_data->dcache.way_incr - (1 << 5));
 	}
 
+	cpu_data->dcache.entry_mask = cpu_data->dcache.way_incr -
+				      cpu_data->dcache.linesz;
+
 	cpu_data->dcache.way_size = cpu_data->dcache.sets *
 				    cpu_data->dcache.linesz;
 
@@ -209,11 +212,14 @@
 
 		cpu_data->scache.way_incr	= (1 << 16);
 		cpu_data->scache.entry_shift	= 5;
-		cpu_data->scache.entry_mask	= 0xffe0;
 		cpu_data->scache.ways		= 4;
 		cpu_data->scache.linesz		= L1_CACHE_BYTES;
+		cpu_data->scache.entry_mask	=
+			(cpu_data->scache.way_incr - cpu_data->scache.linesz);
 		cpu_data->scache.sets		= size /
 			(cpu_data->scache.linesz * cpu_data->scache.ways);
+		cpu_data->scache.way_size	=
+			(cpu_data->scache.sets * cpu_data->scache.linesz);
 	}
 
 	return 0;