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| author |   Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2019-04-17 18:29:18 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-04-21 23:12:40 +1000 |
| commit | a092a03fa942b14369b8edea7690cd96206403f9 (patch) | |
| tree | 6402b703053c2fe0ec55c1602102469f6b1d0dd6 /arch/powerpc | |
| parent | powerpc/mm/hash: Simplify the region id calculation. (diff) | |
| download | linux-dev-a092a03fa942b14369b8edea7690cd96206403f9.tar.xz linux-dev-a092a03fa942b14369b8edea7690cd96206403f9.zip | |
powerpc/mm: Print kernel map details to dmesg
This helps in debugging. We can look at the dmesg to find out
different kernel mapping details.
On 4K config this shows
kernel vmalloc start = 0xc000100000000000
kernel IO start = 0xc000200000000000
kernel vmemmap start = 0xc000300000000000
On 64K config:
kernel vmalloc start = 0xc008000000000000
kernel IO start = 0xc00a000000000000
kernel vmemmap start = 0xc00c000000000000
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/setup-common.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 21b1ce200b22..1729bf409562 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -831,6 +831,9 @@ static __init void print_system_info(void) pr_info("htab_address = 0x%p\n", htab_address); if (htab_hash_mask) pr_info("htab_hash_mask = 0x%lx\n", htab_hash_mask); + pr_info("kernel vmalloc start = 0x%lx\n", KERN_VIRT_START); + pr_info("kernel IO start = 0x%lx\n", KERN_IO_START); + pr_info("kernel vmemmap start = 0x%lx\n", (unsigned long)vmemmap); #endif #ifdef CONFIG_PPC_BOOK3S_32 if (Hash) |