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Subject[PATCH 04/11] swiotlb: Print physical addr instead of bus addr in info printks
Date
Currently, the bus address is printed, but the physical address
makes more sense in the context of the overall iotlb, and on
some platforms we need a hwdev pointer to determine a bus address,
which we don't have at the time of these printks.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
---
lib/swiotlb.c | 13 ++++++++-----
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index add1f92..ef09b4c 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -167,8 +167,10 @@ 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",
- virt_to_bus(io_tlb_start), virt_to_bus(io_tlb_end));
+ printk(KERN_INFO "Placing software IO TLB between cpu physical "
+ "0x%llx - 0x%llx\n",
+ (unsigned long long)virt_to_phys(io_tlb_start),
+ (unsigned long long)virt_to_phys(io_tlb_end));
}

void __init
@@ -249,9 +251,10 @@ 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,
- virt_to_bus(io_tlb_start), virt_to_bus(io_tlb_end));
+ printk(KERN_INFO "Placing %luMB software IO TLB between cpu physical "
+ "0x%llx - 0x%llx\n", bytes >> 20,
+ (unsigned long long)virt_to_phys(io_tlb_start),
+ (unsigned long long)virt_to_phys(io_tlb_end));

return 0;

--
1.5.6.5


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