powerpc: iommu: Add device name to iommu error printks

Right now its difficult to see which device is running out of iommu space:

iommu_alloc failed, tbl c00000076e096660 vaddr c000000768806600 npages 1

Use dev_info() so we get the device name and location:

ipr 0000:00:01.0: iommu_alloc failed, tbl c00000076e096660 vaddr c000000768806600 npages 1

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index d5839179ec770f0134f24bf4c34ac85752feb8b9..961bb03413f38cad337f7617b689e83f2185013b 100644 (file)
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -311,8 +311,9 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
                /* Handle failure */
                if (unlikely(entry == DMA_ERROR_CODE)) {
                        if (printk_ratelimit())
-                               printk(KERN_INFO "iommu_alloc failed, tbl %p vaddr %lx"
-                                      " npages %lx\n", tbl, vaddr, npages);
+                               dev_info(dev, "iommu_alloc failed, tbl %p "
+                                        "vaddr %lx npages %lu\n", tbl, vaddr,
+                                        npages);
                        goto failure;
                }
 
@@ -579,9 +580,9 @@ dma_addr_t iommu_map_page(struct device *dev, struct iommu_table *tbl,
                                         attrs);
                if (dma_handle == DMA_ERROR_CODE) {
                        if (printk_ratelimit())  {
-                               printk(KERN_INFO "iommu_alloc failed, "
-                                               "tbl %p vaddr %p npages %d\n",
-                                               tbl, vaddr, npages);
+                               dev_info(dev, "iommu_alloc failed, tbl %p "
+                                        "vaddr %p npages %d\n", tbl, vaddr,
+                                        npages);
                        }
                } else
                        dma_handle |= (uaddr & ~IOMMU_PAGE_MASK);
@@ -627,7 +628,8 @@ void *iommu_alloc_coherent(struct device *dev, struct iommu_table *tbl,
         * the tce tables.
         */
        if (order >= IOMAP_MAX_ORDER) {
-               printk("iommu_alloc_consistent size too large: 0x%lx\n", size);
+               dev_info(dev, "iommu_alloc_consistent size too large: 0x%lx\n",
+                        size);
                return NULL;
        }