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swiotlb: consolidate swiotlb info message printing 

Impact: clean up swiotlb printks

Remove duplicated swiotlb info printing, and make it more detailed.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ian Campbell 2008-12-16 12:17:34 -08:00 committed by Ingo Molnar
parent ef9b189352
commit 2e5b2b86b6
1 changed files with 28 additions and 5 deletions
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33
lib/swiotlb.c
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@ -156,6 +156,32 @@ static dma_addr_t swiotlb_sg_to_bus(struct scatterlist *sg)
return swiotlb_phys_to_bus(page_to_phys(sg_page(sg)) + sg->offset);
}
static void swiotlb_print_info(unsigned long bytes)
{
phys_addr_t pstart, pend;
dma_addr_t bstart, bend;
pstart = virt_to_phys(io_tlb_start);
pend = virt_to_phys(io_tlb_end);
bstart = swiotlb_phys_to_bus(pstart);
bend = swiotlb_phys_to_bus(pend);
printk(KERN_INFO "Placing %luMB software IO TLB between %p - %p\n",
bytes >> 20, io_tlb_start, io_tlb_end);
if (pstart != bstart || pend != bend)
printk(KERN_INFO "software IO TLB at phys %#llx - %#llx"
" bus %#llx - %#llx\n",
(unsigned long long)pstart,
(unsigned long long)pend,
(unsigned long long)bstart,
(unsigned long long)bend);
else
printk(KERN_INFO "software IO TLB at phys %#llx - %#llx\n",
(unsigned long long)pstart,
(unsigned long long)pend);
}
/*
* Statically reserve bounce buffer space and initialize bounce buffer data
* structures for the software IO TLB used to implement the DMA API.
@ -198,8 +224,7 @@ swiotlb_init_with_default_size(size_t default_size)
if (!io_tlb_overflow_buffer)
panic("Cannot allocate SWIOTLB overflow buffer!\n");
printk(KERN_INFO "Placing software IO TLB between 0x%lx - 0x%lx\n",
swiotlb_virt_to_bus(io_tlb_start), swiotlb_virt_to_bus(io_tlb_end));
swiotlb_print_info(bytes);
}
void __init
@ -279,9 +304,7 @@ swiotlb_late_init_with_default_size(size_t default_size)
if (!io_tlb_overflow_buffer)
goto cleanup4;
printk(KERN_INFO "Placing %luMB software IO TLB between 0x%lx - "
"0x%lx\n", bytes >> 20,
swiotlb_virt_to_bus(io_tlb_start), swiotlb_virt_to_bus(io_tlb_end));
swiotlb_print_info(bytes);
return 0;