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| author | Michal Simek <monstr@monstr.eu> | 2009-10-14 11:12:50 +0200 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2009-12-14 08:44:58 +0100 |
| commit | e051af576a414b6fcfe6589e99b2357522718050 (patch) | |
| tree | abf2fcf3152485cb95ba7dedbcec6cc5f9187b31 /arch | |
| parent | 44e4e196a9b3a703ebe273ffe3fb6cda326fe5d3 (diff) | |
| download | op-kernel-dev-e051af576a414b6fcfe6589e99b2357522718050.zip op-kernel-dev-e051af576a414b6fcfe6589e99b2357522718050.tar.gz | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/microblaze/include/asm/cpuinfo.h | 1 | ||||
| -rw-r--r-- | arch/microblaze/kernel/cpu/cpuinfo-static.c | 1 | ||||
| -rw-r--r-- | arch/microblaze/kernel/cpu/mb.c | 8 |
3 files changed, 8 insertions, 2 deletions
diff --git a/arch/microblaze/include/asm/cpuinfo.h b/arch/microblaze/include/asm/cpuinfo.h index aadf7a8..b4f5ca3 100644 --- a/arch/microblaze/include/asm/cpuinfo.h +++ b/arch/microblaze/include/asm/cpuinfo.h @@ -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; diff --git a/arch/microblaze/kernel/cpu/cpuinfo-static.c b/arch/microblaze/kernel/cpu/cpuinfo-static.c index 6558429e..6095aa6 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo-static.c +++ b/arch/microblaze/kernel/cpu/cpuinfo-static.c @@ -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"); diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c index 4dcfccd..0c912b2 100644 --- a/arch/microblaze/kernel/cpu/mb.c +++ b/arch/microblaze/kernel/cpu/mb.c @@ -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, |
