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x86: add PAT related debug prints

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Adds debug prints at critical code. Adds enough info in dmesg to allow us to
do effective first round of analysis of any issues that may result due to PAT
patch series.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
venkatesh.pallipadi@intel.com
2008-03-18 17:00:25 -07:00
committed by Ingo Molnar
parent b310f381d2
commit 6997ab4982
2 changed files with 29 additions and 1 deletions
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6
arch/x86/mm/ioremap.c
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@@ -131,7 +131,7 @@ static void __iomem *__ioremap(resource_size_t phys_addr, unsigned long size,
return NULL;
if (!phys_addr_valid(phys_addr)) {
printk(KERN_WARNING "ioremap: invalid physical address %lx\n",
printk(KERN_WARNING "ioremap: invalid physical address %llx\n",
phys_addr);
WARN_ON_ONCE(1);
return NULL;
@@ -177,6 +177,10 @@ static void __iomem *__ioremap(resource_size_t phys_addr, unsigned long size,
new_prot_val == _PAGE_CACHE_WC)) ||
(prot_val == _PAGE_CACHE_WC &&
new_prot_val == _PAGE_CACHE_WB)) {
printk(
"ioremap error for 0x%llx-0x%llx, requested 0x%lx, got 0x%lx\n",
phys_addr, phys_addr + size,
prot_val, new_prot_val);
free_memtype(phys_addr, phys_addr + size);
return NULL;
}