[RFC] POWERPC: Merge 32 and 64-bit dma code

Becky Bruce bgill at freescale.com
Thu May 1 09:36:43 EST 2008


I essentially adopt the 64-bit dma code, with some changes to support
32-bit systems, including HIGHMEM.  dma functions on 32-bit are now
invoked via accessor functions which call the correct op for a device based
on archdata dma_ops.  Currently, this defaults to dma_direct_ops, but this
structure will make it easier to do iommu/swiotlb on 32-bit going
forward.

In addition, the dma_map/unmap_page functions are added to dma_ops on
HIGHMEM-enabled configs because we can't just fall back on map/unmap_single
when HIGHMEM is enabled.  Adding these to dma_ops makes it cleaner to
substitute different functionality once we have iommu/swiotlb support.

This code conflicts with the dma_attrs code that Mark Nelson just pushed.
At this point, I'm just looking for some review, and suggestions on how 
this code might be improved.  I'll uprev it to work with Mark's code once
that goes in.

There will be other patches that precede this one - I plan to duplicate 
dma_mapping.h into include/asm-ppc to avoid breakage there.  There will 
also be a patch to rename dma_64.c to dma.c, and a series of patches to 
modify drivers that pass NULL dev pointers.

Dma experts, please review this when you can - I was a dma newbie 
until very recently, and the odds that I'm missing some subtlety 
in this merge are fairly high.

Cheers,
Becky

 ---
 arch/powerpc/kernel/Makefile      |    4 +-
 arch/powerpc/kernel/dma_64.c      |   80 ++++++++++++++++++-
 arch/powerpc/kernel/pci-common.c  |   53 +++++++++++++
 arch/powerpc/kernel/pci_32.c      |    7 ++
 arch/powerpc/kernel/pci_64.c      |   49 ------------
 include/asm-powerpc/dma-mapping.h |  156 +++++++++----------------------------
 include/asm-powerpc/machdep.h     |    5 +-
 include/asm-powerpc/pci.h         |   14 ++--
 8 files changed, 186 insertions(+), 182 deletions(-)

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 0ee4352..8534882 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -57,10 +57,10 @@ extra-$(CONFIG_8xx)		:= head_8xx.o
 extra-y				+= vmlinux.lds
 
 obj-y				+= time.o prom.o traps.o setup-common.o \
-				   udbg.o misc.o io.o \
+				   udbg.o misc.o io.o dma_64.o\
 				   misc_$(CONFIG_WORD_SIZE).o
 obj-$(CONFIG_PPC32)		+= entry_32.o setup_32.o
-obj-$(CONFIG_PPC64)		+= dma_64.o iommu.o
+obj-$(CONFIG_PPC64)		+= iommu.o
 obj-$(CONFIG_PPC_MULTIPLATFORM)	+= prom_init.o
 obj-$(CONFIG_MODULES)		+= ppc_ksyms.o
 obj-$(CONFIG_BOOTX_TEXT)	+= btext.o
diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c
index 3a317cb..4225b4c 100644
--- a/arch/powerpc/kernel/dma_64.c
+++ b/arch/powerpc/kernel/dma_64.c
@@ -8,9 +8,11 @@
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
 #include <asm/bug.h>
-#include <asm/iommu.h>
 #include <asm/abs_addr.h>
 
+#ifdef CONFIG_PPC64
+#include <asm/iommu.h>
+
 /*
  * Generic iommu implementation
  */
@@ -108,6 +110,8 @@ struct dma_mapping_ops dma_iommu_ops = {
 	.dma_supported	= dma_iommu_dma_supported,
 };
 EXPORT_SYMBOL(dma_iommu_ops);
+#endif /* CONFIG_PPC64 */
+
 
 /*
  * Generic direct DMA implementation
@@ -123,12 +127,26 @@ static unsigned long get_dma_direct_offset(struct device *dev)
 	return (unsigned long)dev->archdata.dma_data;
 }
 
+#ifndef CONFIG_NOT_COHERENT_CACHE
 static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
 				       dma_addr_t *dma_handle, gfp_t flag)
 {
-	struct page *page;
 	void *ret;
-	int node = dev->archdata.numa_node;
+	struct page *page;
+	int node = -1;
+
+#ifdef CONFIG_PPC64
+	node = dev->archdata.numa_node;
+#else
+	/* ignore region specifiers */
+	flag  &= ~(__GFP_DMA | __GFP_HIGHMEM);
+
+	/* Bust slacker drivers that pass a NULL dev ptr */
+	BUG_ON(dev == NULL);
+
+	if (dev->coherent_dma_mask < 0xffffffff)
+		flag |= GFP_DMA;
+#endif
 
 	page = alloc_pages_node(node, flag, get_order(size));
 	if (page == NULL)
@@ -146,10 +164,27 @@ static void dma_direct_free_coherent(struct device *dev, size_t size,
 	free_pages((unsigned long)vaddr, get_order(size));
 }
 
+#else /* CONFIG_NOT_COHERENT_CACHE */
+
+static void *dma_direct_alloc_noncoherent(struct device *dev, size_t size,
+				       dma_addr_t *dma_handle, gfp_t flag)
+{
+	return __dma_alloc_coherent(size, dma_handle, flag);
+}
+
+static void dma_direct_free_noncoherent(struct device *dev, size_t size,
+				     void *vaddr, dma_addr_t dma_handle)
+{
+	__dma_free_coherent(size, vaddr);
+}
+#endif /* CONFIG_NOT_COHERENT_CACHE */
+
 static dma_addr_t dma_direct_map_single(struct device *dev, void *ptr,
 					size_t size,
 					enum dma_data_direction direction)
 {
+	BUG_ON(direction == DMA_NONE);
+	__dma_sync(ptr, size, direction);
 	return virt_to_abs(ptr) + get_dma_direct_offset(dev);
 }
 
@@ -180,20 +215,59 @@ static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg,
 
 static int dma_direct_dma_supported(struct device *dev, u64 mask)
 {
+#ifdef CONFIG_PPC64
 	/* Could be improved to check for memory though it better be
 	 * done via some global so platforms can set the limit in case
 	 * they have limited DMA windows
 	 */
 	return mask >= DMA_32BIT_MASK;
+#else
+	return 1;
+#endif
 }
 
+#ifdef CONFIG_HIGHMEM
+/*
+ * dma_direct_map_page is used on systems that have HIGHMEM
+ * enabled.  Platforms without HIGHMEM can just call
+ * dma_ops->map_single.
+ */
+static inline dma_addr_t dma_direct_map_page(struct device *dev,
+					     struct page *page,
+					     unsigned long offset,
+					     size_t size,
+					     enum dma_data_direction dir)
+{
+	BUG_ON(dir == DMA_NONE);
+	__dma_sync_page(page, offset, size, dir);
+	return page_to_phys(page) + offset + get_dma_direct_offset(dev);
+}
+
+static inline void dma_direct_unmap_page(struct device *dev,
+					 dma_addr_t dma_address,
+					 size_t size,
+					 enum dma_data_direction direction)
+{
+}
+
+#endif /* CONFIG_HIGHMEM */
+
 struct dma_mapping_ops dma_direct_ops = {
+#ifdef CONFIG_NOT_COHERENT_CACHE
+	.alloc_coherent	= dma_direct_alloc_noncoherent,
+	.free_coherent	= dma_direct_free_noncoherent,
+#else
 	.alloc_coherent	= dma_direct_alloc_coherent,
 	.free_coherent	= dma_direct_free_coherent,
+#endif
 	.map_single	= dma_direct_map_single,
 	.unmap_single	= dma_direct_unmap_single,
 	.map_sg		= dma_direct_map_sg,
 	.unmap_sg	= dma_direct_unmap_sg,
 	.dma_supported	= dma_direct_dma_supported,
+#ifdef CONFIG_HIGHMEM
+	.map_page	= dma_direct_map_page,
+	.unmap_page	= dma_direct_unmap_page,
+#endif
 };
 EXPORT_SYMBOL(dma_direct_ops);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 063cdd4..4b32136 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -56,6 +56,34 @@ resource_size_t isa_mem_base;
 /* Default PCI flags is 0 */
 unsigned int ppc_pci_flags;
 
+static struct dma_mapping_ops *pci_dma_ops;
+
+void set_pci_dma_ops(struct dma_mapping_ops *dma_ops)
+{
+	pci_dma_ops = dma_ops;
+}
+
+struct dma_mapping_ops *get_pci_dma_ops(void)
+{
+	return pci_dma_ops;
+}
+EXPORT_SYMBOL(get_pci_dma_ops);
+
+int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
+{
+	return dma_set_mask(&dev->dev, mask);
+}
+
+int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
+{
+	int rc;
+
+	rc = dma_set_mask(&dev->dev, mask);
+	dev->dev.coherent_dma_mask = dev->dma_mask;
+
+	return rc;
+}
+
 struct pci_controller *pcibios_alloc_controller(struct device_node *dev)
 {
 	struct pci_controller *phb;
@@ -180,6 +208,31 @@ char __devinit *pcibios_setup(char *str)
 	return str;
 }
 
+void __devinit pcibios_setup_new_device(struct pci_dev *dev)
+{
+	struct dev_archdata *sd = &dev->dev.archdata;
+
+	sd->of_node = pci_device_to_OF_node(dev);
+
+	DBG("PCI: device %s OF node: %s\n", pci_name(dev),
+	    sd->of_node ? sd->of_node->full_name : "<none>");
+
+	sd->dma_ops = pci_dma_ops;
+#ifdef CONFIG_PPC32
+	/* Temporary hack until 32-bit plats do setup correctly. */
+	sd->dma_data = (void *)PCI_DRAM_OFFSET;
+#endif
+
+#ifdef CONFIG_NUMA
+	sd->numa_node = pcibus_to_node(dev->bus);
+#else
+	sd->numa_node = -1;
+#endif
+	if (ppc_md.pci_dma_dev_setup)
+		ppc_md.pci_dma_dev_setup(dev);
+}
+EXPORT_SYMBOL(pcibios_setup_new_device);
+
 /*
  * Reads the interrupt pin to determine if interrupt is use by card.
  * If the interrupt is used, then gets the interrupt line from the
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 88db4ff..174b77e 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -424,6 +424,7 @@ void __devinit pcibios_do_bus_setup(struct pci_bus *bus)
 	unsigned long io_offset;
 	struct resource *res;
 	int i;
+	struct pci_dev *dev;
 
 	/* Hookup PHB resources */
 	io_offset = (unsigned long)hose->io_base_virt - isa_io_base;
@@ -457,6 +458,12 @@ void __devinit pcibios_do_bus_setup(struct pci_bus *bus)
 			bus->resource[i+1] = res;
 		}
 	}
+
+	if (ppc_md.pci_dma_bus_setup)
+		ppc_md.pci_dma_bus_setup(bus);
+
+	list_for_each_entry(dev, &bus->devices, bus_list)
+		pcibios_setup_new_device(dev);
 }
 
 /* the next one is stolen from the alpha port... */
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 5275074..2a5487c 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -52,35 +52,6 @@ EXPORT_SYMBOL(pci_io_base);
 
 LIST_HEAD(hose_list);
 
-static struct dma_mapping_ops *pci_dma_ops;
-
-void set_pci_dma_ops(struct dma_mapping_ops *dma_ops)
-{
-	pci_dma_ops = dma_ops;
-}
-
-struct dma_mapping_ops *get_pci_dma_ops(void)
-{
-	return pci_dma_ops;
-}
-EXPORT_SYMBOL(get_pci_dma_ops);
-
-
-int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
-{
-	return dma_set_mask(&dev->dev, mask);
-}
-
-int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
-{
-	int rc;
-
-	rc = dma_set_mask(&dev->dev, mask);
-	dev->dev.coherent_dma_mask = dev->dma_mask;
-
-	return rc;
-}
-
 static void fixup_broken_pcnet32(struct pci_dev* dev)
 {
 	if ((dev->class>>8 == PCI_CLASS_NETWORK_ETHERNET)) {
@@ -548,26 +519,6 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
 }
 EXPORT_SYMBOL_GPL(pcibios_map_io_space);
 
-void __devinit pcibios_setup_new_device(struct pci_dev *dev)
-{
-	struct dev_archdata *sd = &dev->dev.archdata;
-
-	sd->of_node = pci_device_to_OF_node(dev);
-
-	DBG("PCI: device %s OF node: %s\n", pci_name(dev),
-	    sd->of_node ? sd->of_node->full_name : "<none>");
-
-	sd->dma_ops = pci_dma_ops;
-#ifdef CONFIG_NUMA
-	sd->numa_node = pcibus_to_node(dev->bus);
-#else
-	sd->numa_node = -1;
-#endif
-	if (ppc_md.pci_dma_dev_setup)
-		ppc_md.pci_dma_dev_setup(dev);
-}
-EXPORT_SYMBOL(pcibios_setup_new_device);
-
 void __devinit pcibios_do_bus_setup(struct pci_bus *bus)
 {
 	struct pci_dev *dev;
diff --git a/include/asm-powerpc/dma-mapping.h b/include/asm-powerpc/dma-mapping.h
index bbefb69..dcebf4d 100644
--- a/include/asm-powerpc/dma-mapping.h
+++ b/include/asm-powerpc/dma-mapping.h
@@ -36,16 +36,15 @@ extern void __dma_sync_page(struct page *page, unsigned long offset,
  * Cache coherent cores.
  */
 
-#define __dma_alloc_coherent(gfp, size, handle)	NULL
-#define __dma_free_coherent(size, addr)		((void)0)
 #define __dma_sync(addr, size, rw)		((void)0)
 #define __dma_sync_page(pg, off, sz, rw)	((void)0)
 
 #endif /* ! CONFIG_NOT_COHERENT_CACHE */
 
-#ifdef CONFIG_PPC64
+extern struct dma_mapping_ops dma_direct_ops;
+
 /*
- * DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO
+ * DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO, etc.
  */
 struct dma_mapping_ops {
 	void *		(*alloc_coherent)(struct device *dev, size_t size,
@@ -62,6 +61,14 @@ struct dma_mapping_ops {
 				int nents, enum dma_data_direction direction);
 	int		(*dma_supported)(struct device *dev, u64 mask);
 	int		(*set_dma_mask)(struct device *dev, u64 dma_mask);
+#ifdef CONFIG_HIGHMEM
+	dma_addr_t 	(*map_page)(struct device *dev, struct page *page,
+				unsigned long offset, size_t size,
+				enum dma_data_direction direction);
+	void		(*unmap_page)(struct device *dev,
+				dma_addr_t dma_address, size_t size,
+				enum dma_data_direction direction);
+#endif
 };
 
 static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
@@ -71,8 +78,23 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev)
 	 * only ISA DMA device we support is the floppy and we have a hack
 	 * in the floppy driver directly to get a device for us.
 	 */
-	if (unlikely(dev == NULL || dev->archdata.dma_ops == NULL))
+	if (unlikely(dev == NULL))
 		return NULL;
+
+	if (unlikely(dev->archdata.dma_ops == NULL)) {
+#ifdef CONFIG_PPC64
+		return NULL;
+#else
+		/* Some legacy devices don't support archdata dma ops.
+		 * Assume those devices can use dma_direct_ops.
+		 * This also serves as a default for 32-bit platforms
+		 * on which all devices use the direct ops and so we haven't
+		 * set up the archdata dma_ops.
+		 */
+		return &dma_direct_ops;
+#endif
+	}
+
 	return dev->archdata.dma_ops;
 }
 
@@ -154,8 +176,12 @@ static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
 	BUG_ON(!dma_ops);
+#ifdef CONFIG_HIGHMEM
+	return dma_ops->map_page(dev, page, offset, size, direction);
+#else
 	return dma_ops->map_single(dev, page_address(page) + offset, size,
 			direction);
+#endif
 }
 
 static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
@@ -165,7 +191,12 @@ static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
 	struct dma_mapping_ops *dma_ops = get_dma_ops(dev);
 
 	BUG_ON(!dma_ops);
+
+#ifdef CONFIG_HIGHMEM
+	dma_ops->unmap_page(dev, dma_address, size, direction);
+#else
 	dma_ops->unmap_single(dev, dma_address, size, direction);
+#endif
 }
 
 static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
@@ -192,121 +223,6 @@ static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
  * Available generic sets of operations
  */
 extern struct dma_mapping_ops dma_iommu_ops;
-extern struct dma_mapping_ops dma_direct_ops;
-
-#else /* CONFIG_PPC64 */
-
-#define dma_supported(dev, mask)	(1)
-
-static inline int dma_set_mask(struct device *dev, u64 dma_mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = dma_mask;
-
-	return 0;
-}
-
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-				       dma_addr_t * dma_handle,
-				       gfp_t gfp)
-{
-#ifdef CONFIG_NOT_COHERENT_CACHE
-	return __dma_alloc_coherent(size, dma_handle, gfp);
-#else
-	void *ret;
-	/* ignore region specifiers */
-	gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
-	if (dev == NULL || dev->coherent_dma_mask < 0xffffffff)
-		gfp |= GFP_DMA;
-
-	ret = (void *)__get_free_pages(gfp, get_order(size));
-
-	if (ret != NULL) {
-		memset(ret, 0, size);
-		*dma_handle = virt_to_bus(ret);
-	}
-
-	return ret;
-#endif
-}
-
-static inline void
-dma_free_coherent(struct device *dev, size_t size, void *vaddr,
-		  dma_addr_t dma_handle)
-{
-#ifdef CONFIG_NOT_COHERENT_CACHE
-	__dma_free_coherent(size, vaddr);
-#else
-	free_pages((unsigned long)vaddr, get_order(size));
-#endif
-}
-
-static inline dma_addr_t
-dma_map_single(struct device *dev, void *ptr, size_t size,
-	       enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	__dma_sync(ptr, size, direction);
-
-	return virt_to_bus(ptr);
-}
-
-static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-				    size_t size,
-				    enum dma_data_direction direction)
-{
-	/* We do nothing. */
-}
-
-static inline dma_addr_t
-dma_map_page(struct device *dev, struct page *page,
-	     unsigned long offset, size_t size,
-	     enum dma_data_direction direction)
-{
-	BUG_ON(direction == DMA_NONE);
-
-	__dma_sync_page(page, offset, size, direction);
-
-	return page_to_bus(page) + offset;
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-				  size_t size,
-				  enum dma_data_direction direction)
-{
-	/* We do nothing. */
-}
-
-static inline int
-dma_map_sg(struct device *dev, struct scatterlist *sgl, int nents,
-	   enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	BUG_ON(direction == DMA_NONE);
-
-	for_each_sg(sgl, sg, nents, i) {
-		BUG_ON(!sg_page(sg));
-		__dma_sync_page(sg_page(sg), sg->offset, sg->length, direction);
-		sg->dma_address = page_to_bus(sg_page(sg)) + sg->offset;
-	}
-
-	return nents;
-}
-
-static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-				int nhwentries,
-				enum dma_data_direction direction)
-{
-	/* We don't do anything here. */
-}
-
-#endif /* CONFIG_PPC64 */
 
 static inline void dma_sync_single_for_cpu(struct device *dev,
 		dma_addr_t dma_handle, size_t size,
diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index 54ed64d..d94d295 100644
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -87,8 +87,6 @@ struct machdep_calls {
 	unsigned long	(*tce_get)(struct iommu_table *tbl,
 				    long index);
 	void		(*tce_flush)(struct iommu_table *tbl);
-	void		(*pci_dma_dev_setup)(struct pci_dev *dev);
-	void		(*pci_dma_bus_setup)(struct pci_bus *bus);
 
 	void __iomem *	(*ioremap)(phys_addr_t addr, unsigned long size,
 				   unsigned long flags);
@@ -100,6 +98,9 @@ struct machdep_calls {
 #endif
 #endif /* CONFIG_PPC64 */
 
+	void		(*pci_dma_dev_setup)(struct pci_dev *dev);
+	void		(*pci_dma_bus_setup)(struct pci_bus *bus);
+
 	int		(*probe)(void);
 	void		(*setup_arch)(void); /* Optional, may be NULL */
 	void		(*init_early)(void);
diff --git a/include/asm-powerpc/pci.h b/include/asm-powerpc/pci.h
index a05a942..0e52c78 100644
--- a/include/asm-powerpc/pci.h
+++ b/include/asm-powerpc/pci.h
@@ -60,6 +60,14 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 	return channel ? 15 : 14;
 }
 
+#ifdef CONFIG_PCI
+extern void set_pci_dma_ops(struct dma_mapping_ops *dma_ops);
+extern struct dma_mapping_ops *get_pci_dma_ops(void);
+#else	/* CONFIG_PCI */
+#define set_pci_dma_ops(d)
+#define get_pci_dma_ops()	NULL
+#endif
+
 #ifdef CONFIG_PPC64
 
 /*
@@ -70,9 +78,6 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 #define PCI_DISABLE_MWI
 
 #ifdef CONFIG_PCI
-extern void set_pci_dma_ops(struct dma_mapping_ops *dma_ops);
-extern struct dma_mapping_ops *get_pci_dma_ops(void);
-
 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 					enum pci_dma_burst_strategy *strat,
 					unsigned long *strategy_parameter)
@@ -89,9 +94,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 	*strat = PCI_DMA_BURST_MULTIPLE;
 	*strategy_parameter = cacheline_size;
 }
-#else	/* CONFIG_PCI */
-#define set_pci_dma_ops(d)
-#define get_pci_dma_ops()	NULL
 #endif
 
 #else /* 32-bit */
-- 
1.5.4.1




More information about the Linuxppc-dev mailing list