From a092a03fa942b14369b8edea7690cd96206403f9 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Wed, 17 Apr 2019 18:29:18 +0530 Subject: [PATCH] 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 Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/setup-common.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 21b1ce2..1729bf4 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) -- 2.7.4