These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

5 files changed, 20 insertions, 33 deletions

diff --git a/kernel/drivers/parisc/ccio-dma.c b/kernel/drivers/parisc/ccio-dma.c
index 02ff84fcf..8e11fb283 100644
--- a/kernel/drivers/parisc/ccio-dma.c
+++ b/kernel/drivers/parisc/ccio-dma.c
@@ -704,8 +704,6 @@ ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
  * ccio_dma_supported - Verify the IOMMU supports the DMA address range.
  * @dev: The PCI device.
  * @mask: A bit mask describing the DMA address range of the device.
- *
- * This function implements the pci_dma_supported function.
  */
 static int 
 ccio_dma_supported(struct device *dev, u64 mask)
@@ -1103,16 +1101,9 @@ static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
 	struct ioc *ioc = ioc_list;
 
 	while (ioc != NULL) {
-		u32 *res_ptr = (u32 *)ioc->res_map;
-		int j;
-
-		for (j = 0; j < (ioc->res_size / sizeof(u32)); j++) {
-			if ((j & 7) == 0)
-				seq_puts(m, "\n   ");
-			seq_printf(m, "%08x", *res_ptr);
-			res_ptr++;
-		}
-		seq_puts(m, "\n\n");
+		seq_hex_dump(m, "   ", DUMP_PREFIX_NONE, 32, 4, ioc->res_map,
+			     ioc->res_size, false);
+		seq_putc(m, '\n');
 		ioc = ioc->next;
 		break; /* XXX - remove me */
 	}
diff --git a/kernel/drivers/parisc/iommu-helpers.h b/kernel/drivers/parisc/iommu-helpers.h
index 761e77bfc..e56f1569f 100644
--- a/kernel/drivers/parisc/iommu-helpers.h
+++ b/kernel/drivers/parisc/iommu-helpers.h
@@ -104,7 +104,11 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
 	struct scatterlist *contig_sg;	   /* contig chunk head */
 	unsigned long dma_offset, dma_len; /* start/len of DMA stream */
 	unsigned int n_mappings = 0;
-	unsigned int max_seg_size = dma_get_max_seg_size(dev);
+	unsigned int max_seg_size = min(dma_get_max_seg_size(dev),
+					(unsigned)DMA_CHUNK_SIZE);
+	unsigned int max_seg_boundary = dma_get_seg_boundary(dev) + 1;
+	if (max_seg_boundary)	/* check if the addition above didn't overflow */
+		max_seg_size = min(max_seg_size, max_seg_boundary);
 
 	while (nents > 0) {
 
@@ -138,14 +142,11 @@ iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
 
 			/*
 			** First make sure current dma stream won't
-			** exceed DMA_CHUNK_SIZE if we coalesce the
+			** exceed max_seg_size if we coalesce the
 			** next entry.
 			*/   
-			if(unlikely(ALIGN(dma_len + dma_offset + startsg->length,
-					    IOVP_SIZE) > DMA_CHUNK_SIZE))
-				break;
-
-			if (startsg->length + dma_len > max_seg_size)
+			if (unlikely(ALIGN(dma_len + dma_offset + startsg->length, IOVP_SIZE) >
+				     max_seg_size))
 				break;
 
 			/*
diff --git a/kernel/drivers/parisc/iosapic.c b/kernel/drivers/parisc/iosapic.c
index 9ee04b4b6..144c77dfe 100644
--- a/kernel/drivers/parisc/iosapic.c
+++ b/kernel/drivers/parisc/iosapic.c
@@ -691,7 +691,7 @@ static int iosapic_set_affinity_irq(struct irq_data *d,
 	if (dest_cpu < 0)
 		return -1;
 
-	cpumask_copy(d->affinity, cpumask_of(dest_cpu));
+	cpumask_copy(irq_data_get_affinity_mask(d), cpumask_of(dest_cpu));
 	vi->txn_addr = txn_affinity_addr(d->irq, dest_cpu);
 
 	spin_lock_irqsave(&iosapic_lock, flags);
diff --git a/kernel/drivers/parisc/lba_pci.c b/kernel/drivers/parisc/lba_pci.c
index a32c1f6c2..42844c2bc 100644
--- a/kernel/drivers/parisc/lba_pci.c
+++ b/kernel/drivers/parisc/lba_pci.c
@@ -624,6 +624,10 @@ extend_lmmio_len(unsigned long start, unsigned long end, unsigned long lba_len)
 {
 	struct resource *tmp;
 
+	/* exit if not a C8000 */
+	if (boot_cpu_data.cpu_type < mako)
+		return end;
+
 	pr_debug("LMMIO mismatch: PAT length = 0x%lx, MASK register = 0x%lx\n",
 		end - start, lba_len);
 
@@ -631,10 +635,6 @@ extend_lmmio_len(unsigned long start, unsigned long end, unsigned long lba_len)
 
 	pr_debug("LBA: lmmio_space [0x%lx-0x%lx] - original\n", start, end);
 
-	if (boot_cpu_data.cpu_type < mako) {
-		pr_info("LBA: Not a C8000 system - not extending LMMIO range.\n");
-		return end;
-	}
 
 	end += lba_len;
 	if (end < start) /* fix overflow */
@@ -1557,9 +1557,9 @@ lba_driver_probe(struct parisc_device *dev)
 		pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space,
 					lba_dev->hba.lmmio_space_offset);
 	if (lba_dev->hba.gmmio_space.flags) {
+		/* Not registering GMMIO space - according to docs it's not
+		 * even used on HP-UX. */
 		/* pci_add_resource(&resources, &lba_dev->hba.gmmio_space); */
-		pr_warn("LBA: Not registering GMMIO space %pR\n",
-			&lba_dev->hba.gmmio_space);
 	}
 
 	pci_add_resource(&resources, &lba_dev->hba.bus_num);
diff --git a/kernel/drivers/parisc/sba_iommu.c b/kernel/drivers/parisc/sba_iommu.c
index f1441e466..225049b49 100644
--- a/kernel/drivers/parisc/sba_iommu.c
+++ b/kernel/drivers/parisc/sba_iommu.c
@@ -1854,14 +1854,9 @@ sba_proc_bitmap_info(struct seq_file *m, void *p)
 {
 	struct sba_device *sba_dev = sba_list;
 	struct ioc *ioc = &sba_dev->ioc[0];	/* FIXME: Multi-IOC support! */
-	unsigned int *res_ptr = (unsigned int *)ioc->res_map;
-	int i;
 
-	for (i = 0; i < (ioc->res_size/sizeof(unsigned int)); ++i, ++res_ptr) {
-		if ((i & 7) == 0)
-			seq_puts(m, "\n   ");
-		seq_printf(m, " %08x", *res_ptr);
-	}
+	seq_hex_dump(m, "   ", DUMP_PREFIX_NONE, 32, 4, ioc->res_map,
+		     ioc->res_size, false);
 	seq_putc(m, '\n');
 
 	return 0;