diff options
Diffstat (limited to 'arch/microblaze/kernel/cpu')
| -rw-r--r-- | arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c | 1 | ||||
| -rw-r--r-- | arch/microblaze/kernel/cpu/cpuinfo-static.c | 1 | ||||
| -rw-r--r-- | arch/microblaze/kernel/cpu/cpuinfo.c | 4 | ||||
| -rw-r--r-- | arch/microblaze/kernel/cpu/mb.c | 9 |
4 files changed, 13 insertions, 2 deletions
diff --git a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c index f70a6047f08e..916aaedf1945 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c +++ b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c @@ -72,6 +72,7 @@ void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu) CI(pvr_user2, USER2); CI(mmu, USE_MMU); + CI(mmu_privins, MMU_PRIVINS); CI(endian, ENDIAN); CI(use_icache, USE_ICACHE); diff --git a/arch/microblaze/kernel/cpu/cpuinfo-static.c b/arch/microblaze/kernel/cpu/cpuinfo-static.c index b16b994ca3d2..592bb2e838c4 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo-static.c +++ b/arch/microblaze/kernel/cpu/cpuinfo-static.c @@ -119,6 +119,7 @@ void __init set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu) ci->pvr_user2 = fcpu(cpu, "xlnx,pvr-user2"); ci->mmu = fcpu(cpu, "xlnx,use-mmu"); + ci->mmu_privins = fcpu(cpu, "xlnx,mmu-privileged-instr"); ci->endian = fcpu(cpu, "xlnx,endianness"); ci->ver_code = 0; diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c index c1640c52711f..44394d80a683 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo.c +++ b/arch/microblaze/kernel/cpu/cpuinfo.c @@ -88,4 +88,8 @@ void __init setup_cpuinfo(void) printk(KERN_WARNING "%s: Unsupported PVR setting\n", __func__); set_cpuinfo_static(&cpuinfo, cpu); } + + if (cpuinfo.mmu_privins) + printk(KERN_WARNING "%s: Stream instructions enabled" + " - USERSPACE CAN LOCK THIS KERNEL!\n", __func__); } diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c index b4048af02615..7b5dca7ed39d 100644 --- a/arch/microblaze/kernel/cpu/mb.c +++ b/arch/microblaze/kernel/cpu/mb.c @@ -97,6 +97,10 @@ static int show_cpuinfo(struct seq_file *m, void *v) (cpuinfo.use_exc & PVR2_FPU_EXC_MASK) ? "fpu " : "", (cpuinfo.use_exc & PVR2_USE_FSL_EXC) ? "fsl " : ""); + count += seq_printf(m, + "Stream-insns:\t%sprivileged\n", + cpuinfo.mmu_privins ? "un" : ""); + if (cpuinfo.use_icache) count += seq_printf(m, "Icache:\t\t%ukB\tline length:\t%dB\n", @@ -110,10 +114,11 @@ static int show_cpuinfo(struct seq_file *m, void *v) "Dcache:\t\t%ukB\tline length:\t%dB\n", cpuinfo.dcache_size >> 10, cpuinfo.dcache_line_length); + seq_printf(m, "Dcache-Policy:\t"); if (cpuinfo.dcache_wb) - count += seq_printf(m, "\t\twrite-back\n"); + count += seq_printf(m, "write-back\n"); else - count += seq_printf(m, "\t\twrite-through\n"); + count += seq_printf(m, "write-through\n"); } else count += seq_printf(m, "Dcache:\t\tno\n"); |