1 files changed, 0 insertions, 296 deletions
diff --git a/target/linux/leon/patches-2.6.36/015-dma_ops.patch b/target/linux/leon/patches-2.6.36/015-dma_ops.patch
deleted file mode 100644
index 7f488e022..000000000
--- a/target/linux/leon/patches-2.6.36/015-dma_ops.patch
+++ /dev/null
@@ -1,296 +0,0 @@
-From c6d8f92cfd7f4f19eb3b16545b3b68c561978fe8 Mon Sep 17 00:00:00 2001
-From: Kristoffer Glembo <kristoffer@gaisler.com>
-Date: Mon, 7 Jun 2010 14:00:30 +0200
-Subject: [PATCH] sparc32: Added LEON dma_ops.
-
-Added leon3_dma_ops and mmu_inval_dma_area.
----
- arch/sparc/kernel/ioport.c |  139 +++++++++++++++++++++++++++++++------------
- 1 files changed, 100 insertions(+), 39 deletions(-)
-
---- a/arch/sparc/kernel/ioport.c
-+++ b/arch/sparc/kernel/ioport.c
-@@ -50,10 +50,15 @@
- #include <asm/io-unit.h>
- #include <asm/leon.h>
- 
--#ifdef CONFIG_SPARC_LEON
--#define mmu_inval_dma_area(p, l) leon_flush_dcache_all()
--#else
-+#ifndef CONFIG_SPARC_LEON
- #define mmu_inval_dma_area(p, l)	/* Anton pulled it out for 2.4.0-xx */
-+#else
-+static inline void mmu_inval_dma_area(unsigned long va, unsigned long len)
-+{
-+	if (!sparc_leon3_snooping_enabled()) {
-+		leon_flush_dcache_all();
-+	}
-+}
- #endif
- 
- static struct resource *_sparc_find_resource(struct resource *r,
-@@ -254,7 +259,7 @@ static void *sbus_alloc_coherent(struct
- 				 dma_addr_t *dma_addrp, gfp_t gfp)
- {
- 	struct platform_device *op = to_platform_device(dev);
--	unsigned long len_total = (len + PAGE_SIZE-1) & PAGE_MASK;
-+	unsigned long len_total = PAGE_ALIGN(len);
- 	unsigned long va;
- 	struct resource *res;
- 	int order;
-@@ -287,15 +292,19 @@ static void *sbus_alloc_coherent(struct
- 	 * XXX That's where sdev would be used. Currently we load
- 	 * all iommu tables with the same translations.
- 	 */
--	if (mmu_map_dma_area(dev, dma_addrp, va, res->start, len_total) != 0)
--		goto err_noiommu;
--
--	res->name = op->dev.of_node->name;
-+#ifdef CONFIG_SPARC_LEON
-+	sparc_mapiorange(0, virt_to_phys(va), res->start, len_total);	
-+	*dma_addrp = virt_to_phys(va);
-+#else
-+	if (mmu_map_dma_area(dev, dma_addrp, va, res->start, len_total) != 0) {
-+		release_resource(res);
-+		goto err_nova;
-+	}
-+#endif
-+	res->name = op->node->name;
- 
- 	return (void *)(unsigned long)res->start;
- 
--err_noiommu:
--	release_resource(res);
- err_nova:
- 	free_pages(va, order);
- err_nomem:
-@@ -321,7 +330,7 @@ static void sbus_free_coherent(struct de
- 		return;
- 	}
- 
--	n = (n + PAGE_SIZE-1) & PAGE_MASK;
-+	n = PAGE_ALIGN(n);
- 	if ((res->end-res->start)+1 != n) {
- 		printk("sbus_free_consistent: region 0x%lx asked 0x%zx\n",
- 		    (long)((res->end-res->start)+1), n);
-@@ -333,7 +342,12 @@ static void sbus_free_coherent(struct de
- 
- 	/* mmu_inval_dma_area(va, n); */ /* it's consistent, isn't it */
- 	pgv = virt_to_page(p);
--	mmu_unmap_dma_area(dev, ba, n);
-+
-+#ifdef CONFIG_SPARC_LEON
-+	sparc_unmapiorange((unsigned long)p, n);
-+#else
-+ 	mmu_unmap_dma_area(dev, ba, n);
-+#endif
- 
- 	__free_pages(pgv, get_order(n));
- }
-@@ -408,9 +422,6 @@ struct dma_map_ops sbus_dma_ops = {
- 	.sync_sg_for_device	= sbus_sync_sg_for_device,
- };
- 
--struct dma_map_ops *dma_ops = &sbus_dma_ops;
--EXPORT_SYMBOL(dma_ops);
--
- static int __init sparc_register_ioport(void)
- {
- 	register_proc_sparc_ioport();
-@@ -422,7 +433,7 @@ arch_initcall(sparc_register_ioport);
- 
- #endif /* CONFIG_SBUS */
- 
--#ifdef CONFIG_PCI
-+#if defined(CONFIG_PCI) || defined(CONFIG_SPARC_LEON)
- 
- /* Allocate and map kernel buffer using consistent mode DMA for a device.
-  * hwdev should be valid struct pci_dev pointer for PCI devices.
-@@ -430,7 +441,7 @@ arch_initcall(sparc_register_ioport);
- static void *pci32_alloc_coherent(struct device *dev, size_t len,
- 				  dma_addr_t *pba, gfp_t gfp)
- {
--	unsigned long len_total = (len + PAGE_SIZE-1) & PAGE_MASK;
-+	unsigned long len_total = PAGE_ALIGN(len);
- 	unsigned long va;
- 	struct resource *res;
- 	int order;
-@@ -463,10 +474,6 @@ static void *pci32_alloc_coherent(struct
- 		return NULL;
- 	}
- 	mmu_inval_dma_area(va, len_total);
--#if 0
--/* P3 */ printk("pci_alloc_consistent: kva %lx uncva %lx phys %lx size %lx\n",
--  (long)va, (long)res->start, (long)virt_to_phys(va), len_total);
--#endif
- 	sparc_mapiorange(0, virt_to_phys(va), res->start, len_total);
- 
- 	*pba = virt_to_phys(va); /* equals virt_to_bus (R.I.P.) for us. */
-@@ -498,7 +505,7 @@ static void pci32_free_coherent(struct d
- 		return;
- 	}
- 
--	n = (n + PAGE_SIZE-1) & PAGE_MASK;
-+	n = PAGE_ALIGN(n);
- 	if ((res->end-res->start)+1 != n) {
- 		printk("pci_free_consistent: region 0x%lx asked 0x%lx\n",
- 		    (long)((res->end-res->start)+1), (long)n);
-@@ -515,6 +522,14 @@ static void pci32_free_coherent(struct d
- 	free_pages(pgp, get_order(n));
- }
- 
-+static void pci32_unmap_page(struct device *dev, dma_addr_t ba, size_t size,
-+			     enum dma_data_direction dir, struct dma_attrs *attrs)
-+{
-+	if (dir != PCI_DMA_TODEVICE) {
-+		mmu_inval_dma_area((unsigned long)phys_to_virt(ba), PAGE_ALIGN(size));
-+	}
-+}
-+
- /*
-  * Same as pci_map_single, but with pages.
-  */
-@@ -551,8 +566,7 @@ static int pci32_map_sg(struct device *d
- 
- 	/* IIep is write-through, not flushing. */
- 	for_each_sg(sgl, sg, nents, n) {
--		BUG_ON(page_address(sg_page(sg)) == NULL);
--		sg->dma_address = virt_to_phys(sg_virt(sg));
-+		sg->dma_address = sg_phys(sg);
- 		sg->dma_length = sg->length;
- 	}
- 	return nents;
-@@ -571,10 +585,7 @@ static void pci32_unmap_sg(struct device
- 
- 	if (dir != PCI_DMA_TODEVICE) {
- 		for_each_sg(sgl, sg, nents, n) {
--			BUG_ON(page_address(sg_page(sg)) == NULL);
--			mmu_inval_dma_area(
--			    (unsigned long) page_address(sg_page(sg)),
--			    (sg->length + PAGE_SIZE-1) & PAGE_MASK);
-+			mmu_inval_dma_area((unsigned long)sg_virt(sg), PAGE_ALIGN(sg->length));
- 		}
- 	}
- }
-@@ -594,7 +605,7 @@ static void pci32_sync_single_for_cpu(st
- {
- 	if (dir != PCI_DMA_TODEVICE) {
- 		mmu_inval_dma_area((unsigned long)phys_to_virt(ba),
--		    (size + PAGE_SIZE-1) & PAGE_MASK);
-+				   PAGE_ALIGN(size));
- 	}
- }
- 
-@@ -621,10 +632,7 @@ static void pci32_sync_sg_for_cpu(struct
- 
- 	if (dir != PCI_DMA_TODEVICE) {
- 		for_each_sg(sgl, sg, nents, n) {
--			BUG_ON(page_address(sg_page(sg)) == NULL);
--			mmu_inval_dma_area(
--			    (unsigned long) page_address(sg_page(sg)),
--			    (sg->length + PAGE_SIZE-1) & PAGE_MASK);
-+			mmu_inval_dma_area((unsigned long)sg_virt(sg), PAGE_ALIGN(sg->length));
- 		}
- 	}
- }
-@@ -637,18 +645,38 @@ static void pci32_sync_sg_for_device(str
- 
- 	if (dir != PCI_DMA_TODEVICE) {
- 		for_each_sg(sgl, sg, nents, n) {
--			BUG_ON(page_address(sg_page(sg)) == NULL);
--			mmu_inval_dma_area(
--			    (unsigned long) page_address(sg_page(sg)),
--			    (sg->length + PAGE_SIZE-1) & PAGE_MASK);
-+			mmu_inval_dma_area((unsigned long)sg_virt(sg),  PAGE_ALIGN(sg->length));
- 		}
- 	}
- }
- 
-+/* LEON3 unmapping functions 
-+ * 
-+ * We can only invalidate the whole cache so unmap_page and unmap_sg do the same thing
-+ */
-+static void leon3_unmap_page(struct device *dev, dma_addr_t ba, size_t size,
-+			     enum dma_data_direction dir, struct dma_attrs *attrs)
-+{
-+	if (dir != PCI_DMA_TODEVICE) {
-+		mmu_inval_dma_area(0, 0);
-+	}
-+}
-+
-+static void leon3_unmap_sg(struct device *dev, struct scatterlist *sgl,
-+			   int nents, enum dma_data_direction dir,
-+			   struct dma_attrs *attrs)
-+{
-+
-+	if (dir != PCI_DMA_TODEVICE) {
-+		mmu_inval_dma_area(0, 0);
-+	}
-+}
-+
- struct dma_map_ops pci32_dma_ops = {
- 	.alloc_coherent		= pci32_alloc_coherent,
- 	.free_coherent		= pci32_free_coherent,
- 	.map_page		= pci32_map_page,
-+	.unmap_page		= pci32_unmap_page,
- 	.map_sg			= pci32_map_sg,
- 	.unmap_sg		= pci32_unmap_sg,
- 	.sync_single_for_cpu	= pci32_sync_single_for_cpu,
-@@ -658,7 +686,30 @@ struct dma_map_ops pci32_dma_ops = {
- };
- EXPORT_SYMBOL(pci32_dma_ops);
- 
--#endif /* CONFIG_PCI */
-+struct dma_map_ops leon3_dma_ops = {
-+	.alloc_coherent		= sbus_alloc_coherent,
-+	.free_coherent		= sbus_free_coherent,
-+	.map_page		= pci32_map_page,
-+	.unmap_page		= leon3_unmap_page,
-+	.map_sg			= pci32_map_sg,
-+	.unmap_sg		= leon3_unmap_sg,
-+	.sync_single_for_cpu	= pci32_sync_single_for_cpu,
-+	.sync_single_for_device	= pci32_sync_single_for_device,
-+	.sync_sg_for_cpu	= pci32_sync_sg_for_cpu,
-+	.sync_sg_for_device	= pci32_sync_sg_for_device,
-+};
-+
-+#endif /* CONFIG_PCI || CONFIG_SPARC_LEON */
-+
-+#ifdef CONFIG_SPARC_LEON
-+struct dma_map_ops *dma_ops = &leon3_dma_ops;
-+#else
-+struct dma_map_ops *dma_ops = &sbus_dma_ops;
-+#endif
-+
-+#ifdef CONFIG_SBUS
-+EXPORT_SYMBOL(dma_ops);
-+#endif
- 
- /*
-  * Return whether the given PCI device DMA address mask can be
-@@ -676,6 +727,16 @@ int dma_supported(struct device *dev, u6
- }
- EXPORT_SYMBOL(dma_supported);
- 
-+int dma_set_mask(struct device *dev, u64 dma_mask)
-+{
-+#ifdef CONFIG_PCI
-+	if (dev->bus == &pci_bus_type)
-+		return pci_set_dma_mask(to_pci_dev(dev), dma_mask);
-+#endif
-+	return -EOPNOTSUPP;
-+}
-+EXPORT_SYMBOL(dma_set_mask);
-+
- #ifdef CONFIG_PROC_FS
- 
- static int sparc_io_proc_show(struct seq_file *m, void *v)
-@@ -717,7 +778,7 @@ static const struct file_operations spar
- static struct resource *_sparc_find_resource(struct resource *root,
- 					     unsigned long hit)
- {
--        struct resource *tmp;
-+	struct resource *tmp;
- 
- 	for (tmp = root->child; tmp != 0; tmp = tmp->sibling) {
- 		if (tmp->start <= hit && tmp->end >= hit)