[PATCH] powerpc/ppc64: Print CPU/MMU/FW features at boot
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2014-08-06 04:31:22
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Helps debug funky firmware issues Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> --- arch/powerpc/kernel/setup_64.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 93991ed..a06edf6 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c@@ -451,6 +451,11 @@ void __init setup_system(void) if (ppc64_caches.iline_size != 0x80) printk("ppc64_caches.icache_line_size = 0x%x\n", ppc64_caches.iline_size); + printk("cpu_features = 0x%016lx\n", cur_cpu_spec->cpu_features); + printk("cpu_user_features = 0x%08x 0x%08x\n", + cur_cpu_spec->cpu_user_features, cur_cpu_spec->cpu_user_features2); + printk("mmu_features = 0x%08x\n", cur_cpu_spec->mmu_features); + printk("fw_features = 0x%016lx\n", powerpc_firmware_features); #ifdef CONFIG_PPC_STD_MMU_64 if (htab_address) printk("htab_address = 0x%p\n", htab_address);