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| author |   Michael Ellerman <mpe@ellerman.id.au> | 2014-08-06 19:08:22 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2014-09-25 23:14:55 +1000 |
| commit | 87d99c0e2c2f9d1386d8e284a5fbc13e96adbe25 (patch) | |
| tree | 06fa995d12d12340b31dd32df8c7d1b2fda6ca59 /arch/powerpc | |
| parent | powerpc/ppc64: Clean up the boot-time settings display (diff) | |
| download | linux-dev-87d99c0e2c2f9d1386d8e284a5fbc13e96adbe25.tar.xz linux-dev-87d99c0e2c2f9d1386d8e284a5fbc13e96adbe25.zip | |
powerpc/ppc64: Print CPU/MMU/FW features at boot
"Helps debug funky firmware issues".
After:
Starting Linux PPC64 #108 SMP Wed Aug 6 19:04:51 EST 2014
-----------------------------------------------------
ppc64_pft_size = 0x1a
phys_mem_size = 0x200000000
cpu_features = 0x17fc7a6c18500249
possible = 0x1fffffff18700649
always = 0x0000000000000040
cpu_user_features = 0xdc0065c2 0xee000000
mmu_features = 0x5a000001
firmware_features = 0x00000001405a440b
htab_hash_mask = 0x7ffff
-----------------------------------------------------
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/setup_64.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 32f4c320b9dc..2ef9893a06bd 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -533,6 +533,14 @@ void __init setup_system(void) if (ppc64_caches.iline_size != 0x80) printk("icache_line_size = 0x%x\n", ppc64_caches.iline_size); + printk("cpu_features = 0x%016lx\n", cur_cpu_spec->cpu_features); + printk(" possible = 0x%016lx\n", CPU_FTRS_POSSIBLE); + printk(" always = 0x%016lx\n", CPU_FTRS_ALWAYS); + 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("firmware_features = 0x%016lx\n", powerpc_firmware_features); + #ifdef CONFIG_PPC_STD_MMU_64 if (htab_address) printk("htab_address = 0x%p\n", htab_address); |