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microblaze: Extend cpuinfo for support write-back caches 

There is missing checking agains PVR but this is not important
for now. There are some missing checking too.

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2009-10-14 11:12:50 +02:00
parent 44e4e196a9
commit e051af576a
3 changed files with 8 additions and 2 deletions
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1
arch/microblaze/include/asm/cpuinfo.h
View File

@ -53,6 +53,7 @@ struct cpuinfo {
u32 dcache_write;
u32 dcache_line_length;
u32 dcache_size;
u32 dcache_wb;
unsigned long dcache_base;
unsigned long dcache_high;

1
arch/microblaze/kernel/cpu/cpuinfo-static.c
View File

@ -96,6 +96,7 @@ void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu)
ci->dcache_size = fcpu(cpu, "d-cache-size");
ci->dcache_base = fcpu(cpu, "d-cache-baseaddr");
ci->dcache_high = fcpu(cpu, "d-cache-highaddr");
ci->dcache_wb = fcpu(cpu, "xlnx,dcache-use-writeback");
ci->use_dopb = fcpu(cpu, "xlnx,d-opb");
ci->use_iopb = fcpu(cpu, "xlnx,i-opb");

8
arch/microblaze/kernel/cpu/mb.c
View File

@ -103,11 +103,15 @@ static int show_cpuinfo(struct seq_file *m, void *v)
else
count += seq_printf(m, "Icache:\t\tno\n");
if (cpuinfo.use_dcache)
if (cpuinfo.use_dcache) {
count += seq_printf(m,
"Dcache:\t\t%ukB\n",
cpuinfo.dcache_size >> 10);
else
if (cpuinfo.dcache_wb)
count += seq_printf(m, "\t\twrite-back\n");
else
count += seq_printf(m, "\t\twrite-through\n");
} else
count += seq_printf(m, "Dcache:\t\tno\n");
count += seq_printf(m,