microblaze: Fix cache_line_lenght

We used cache_line as cache_line_lenght. For this reason
we did cache flushing 4 times longer than was necessary.

Signed-off-by: Michal Simek <monstr@monstr.eu>

arch/microblaze/include/asm/cpuinfo.h

@@ -43,7 +43,7 @@ struct cpuinfo {
 	u32 use_icache;
 	u32 icache_tagbits;
 	u32 icache_write;
-	u32 icache_line;
+	u32 icache_line_length;
 	u32 icache_size;
 	unsigned long icache_base;
 	unsigned long icache_high;
@@ -51,7 +51,7 @@ struct cpuinfo {
 	u32 use_dcache;
 	u32 dcache_tagbits;
 	u32 dcache_write;
-	u32 dcache_line;
+	u32 dcache_line_length;
 	u32 dcache_size;
 	unsigned long dcache_base;
 	unsigned long dcache_high;

arch/microblaze/kernel/cpu/cache.c

@@ -140,7 +140,7 @@ void __invalidate_icache_all(void)
 		/* Just loop through cache size and invalidate, no need to add
 			CACHE_BASE address */
 		for (i = 0; i < cpuinfo.icache_size;
-			i += cpuinfo.icache_line)
+			i += cpuinfo.icache_line_length)
 				__invalidate_icache(i);
 
 		__enable_icache();
@@ -160,15 +160,15 @@ void __invalidate_icache_range(unsigned long start, unsigned long end)
 		 * just cover cache footprint
 		 */
 		end = min(start + cpuinfo.icache_size, end);
-		align = ~(cpuinfo.icache_line - 1);
+		align = ~(cpuinfo.icache_line_length - 1);
 		start &= align; /* Make sure we are aligned */
 		/* Push end up to the next cache line */
-		end = ((end & align) + cpuinfo.icache_line);
+		end = ((end & align) + cpuinfo.icache_line_length);
 
 		local_irq_save(flags);
 		__disable_icache();
 
-		for (i = start; i < end; i += cpuinfo.icache_line)
+		for (i = start; i < end; i += cpuinfo.icache_line_length)
 			__invalidate_icache(i);
 
 		__enable_icache();
@@ -207,7 +207,7 @@ void __invalidate_dcache_all(void)
 		 * no need to add CACHE_BASE address
 		 */
 		for (i = 0; i < cpuinfo.dcache_size;
-			i += cpuinfo.dcache_line)
+			i += cpuinfo.dcache_line_length)
 				__invalidate_dcache(i);
 
 		__enable_dcache();
@@ -227,14 +227,14 @@ void __invalidate_dcache_range(unsigned long start, unsigned long end)
 		 * just cover cache footprint
 		 */
 		end = min(start + cpuinfo.dcache_size, end);
-		align = ~(cpuinfo.dcache_line - 1);
+		align = ~(cpuinfo.dcache_line_length - 1);
 		start &= align; /* Make sure we are aligned */
 		/* Push end up to the next cache line */
-		end = ((end & align) + cpuinfo.dcache_line);
+		end = ((end & align) + cpuinfo.dcache_line_length);
 		local_irq_save(flags);
 		__disable_dcache();
 
-		for (i = start; i < end; i += cpuinfo.dcache_line)
+		for (i = start; i < end; i += cpuinfo.dcache_line_length)
 			__invalidate_dcache(i);
 
 		__enable_dcache();

arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c

@@ -70,7 +70,7 @@ void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu)
 	CI(use_icache, USE_ICACHE);
 	CI(icache_tagbits, ICACHE_ADDR_TAG_BITS);
 	CI(icache_write, ICACHE_ALLOW_WR);
-	CI(icache_line, ICACHE_LINE_LEN);
+	ci->icache_line_length = PVR_ICACHE_LINE_LEN(pvr) << 2;
 	CI(icache_size, ICACHE_BYTE_SIZE);
 	CI(icache_base, ICACHE_BASEADDR);
 	CI(icache_high, ICACHE_HIGHADDR);
@@ -78,7 +78,7 @@ void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu)
 	CI(use_dcache, USE_DCACHE);
 	CI(dcache_tagbits, DCACHE_ADDR_TAG_BITS);
 	CI(dcache_write, DCACHE_ALLOW_WR);
-	CI(dcache_line, DCACHE_LINE_LEN);
+	ci->dcache_line_length = PVR_DCACHE_LINE_LEN(pvr) << 2;
 	CI(dcache_size, DCACHE_BYTE_SIZE);
 	CI(dcache_base, DCACHE_BASEADDR);
 	CI(dcache_high, DCACHE_HIGHADDR);

arch/microblaze/kernel/cpu/cpuinfo-static.c

@@ -72,12 +72,12 @@ void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu)
 	ci->use_icache = fcpu(cpu, "xlnx,use-icache");
 	ci->icache_tagbits = fcpu(cpu, "xlnx,addr-tag-bits");
 	ci->icache_write = fcpu(cpu, "xlnx,allow-icache-wr");
-	ci->icache_line = fcpu(cpu, "xlnx,icache-line-len") << 2;
-	if (!ci->icache_line) {
+	ci->icache_line_length = fcpu(cpu, "xlnx,icache-line-len") << 2;
+	if (!ci->icache_line_length) {
 		if (fcpu(cpu, "xlnx,icache-use-fsl"))
-			ci->icache_line = 4 << 2;
+			ci->icache_line_length = 4 << 2;
 		else
-			ci->icache_line = 1 << 2;
+			ci->icache_line_length = 1 << 2;
 	}
 	ci->icache_size = fcpu(cpu, "i-cache-size");
 	ci->icache_base = fcpu(cpu, "i-cache-baseaddr");
@@ -86,12 +86,12 @@ void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu)
 	ci->use_dcache = fcpu(cpu, "xlnx,use-dcache");
 	ci->dcache_tagbits = fcpu(cpu, "xlnx,dcache-addr-tag");
 	ci->dcache_write = fcpu(cpu, "xlnx,allow-dcache-wr");
-	ci->dcache_line = fcpu(cpu, "xlnx,dcache-line-len") << 2;
-	if (!ci->dcache_line) {
+	ci->dcache_line_length = fcpu(cpu, "xlnx,dcache-line-len") << 2;
+	if (!ci->dcache_line_length) {
 		if (fcpu(cpu, "xlnx,dcache-use-fsl"))
-			ci->dcache_line = 4 << 2;
+			ci->dcache_line_length = 4 << 2;
 		else
-			ci->dcache_line = 1 << 2;
+			ci->dcache_line_length = 1 << 2;
 	}
 	ci->dcache_size = fcpu(cpu, "d-cache-size");
 	ci->dcache_base = fcpu(cpu, "d-cache-baseaddr");