4 files changed, 11 insertions, 80 deletions

diff --git a/arch/sh/boards/dreamcast/setup.c b/arch/sh/boards/dreamcast/setup.c
index 8799df6e866a..2581c8cd5df7 100644
--- a/arch/sh/boards/dreamcast/setup.c
+++ b/arch/sh/boards/dreamcast/setup.c
@@ -33,9 +33,6 @@ extern void aica_time_init(void);
 extern int gapspci_init(void);
 extern int systemasic_irq_demux(int);
 
-void *dreamcast_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t);
-int dreamcast_consistent_free(struct device *, size_t, void *, dma_addr_t);
-
 static void __init dreamcast_setup(char **cmdline_p)
 {
         int i;
@@ -64,9 +61,4 @@ static struct sh_machine_vector mv_dreamcast __initmv = {
         .mv_name                = "Sega Dreamcast",
         .mv_setup               = dreamcast_setup,
         .mv_irq_demux           = systemasic_irq_demux,
-
-#ifdef CONFIG_PCI
-        .mv_consistent_alloc    = dreamcast_consistent_alloc,
-        .mv_consistent_free     = dreamcast_consistent_free,
-#endif
 };
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index 7bf2a2c823f3..0718805774e8 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -12,8 +12,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7780)	+= pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7785)        += pci-sh7780.o ops-sh4.o
 obj-$(CONFIG_CPU_SH5)                   += pci-sh5.o ops-sh5.o
 
-obj-$(CONFIG_SH_DREAMCAST)              += ops-dreamcast.o fixups-dreamcast.o \
-                                           dma-dreamcast.o
+obj-$(CONFIG_SH_DREAMCAST)              += ops-dreamcast.o fixups-dreamcast.o
 obj-$(CONFIG_SH_SECUREEDGE5410)         += ops-snapgear.o
 obj-$(CONFIG_SH_RTS7751R2D)             += ops-rts7751r2d.o fixups-rts7751r2d.o
 obj-$(CONFIG_SH_SH03)                   += ops-sh03.o fixups-sh03.o
diff --git a/arch/sh/drivers/pci/dma-dreamcast.c b/arch/sh/drivers/pci/dma-dreamcast.c
deleted file mode 100644
index 888a34050599..000000000000
--- a/arch/sh/drivers/pci/dma-dreamcast.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * arch/sh/drivers/pci/dma-dreamcast.c
- *
- * PCI DMA support for the Sega Dreamcast
- *
- * Copyright (C) 2001, 2002  M. R. Brown
- * Copyright (C) 2002, 2003  Paul Mundt
- *
- * This file originally bore the message (with enclosed-$):
- *      Id: pci.c,v 1.3 2003/05/04 19:29:46 lethal Exp
- *      Dreamcast PCI: Supports SEGA Broadband Adaptor only.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/device.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/mach/pci.h>
-
-static int gapspci_dma_used = 0;
-
-void *dreamcast_consistent_alloc(struct device *dev, size_t size,
-                                 dma_addr_t *dma_handle, gfp_t flag)
-{
-        unsigned long buf;
-
-        if (dev && dev->bus != &pci_bus_type)
-                return NULL;
-
-        if (gapspci_dma_used + size > GAPSPCI_DMA_SIZE)
-                return ERR_PTR(-EINVAL);
-
-        buf = GAPSPCI_DMA_BASE + gapspci_dma_used;
-
-        gapspci_dma_used = PAGE_ALIGN(gapspci_dma_used+size);
-
-        *dma_handle = (dma_addr_t)buf;
-
-        buf = P2SEGADDR(buf);
-
-        /* Flush the dcache before we hand off the buffer */
-        __flush_purge_region((void *)buf, size);
-
-        return (void *)buf;
-}
-
-int dreamcast_consistent_free(struct device *dev, size_t size,
-                         void *vaddr, dma_addr_t dma_handle)
-{
-        if (dev && dev->bus != &pci_bus_type)
-                return -EINVAL;
-
-        /* XXX */
-        gapspci_dma_used = 0;
-
-        return 0;
-}
-
diff --git a/arch/sh/drivers/pci/fixups-dreamcast.c b/arch/sh/drivers/pci/fixups-dreamcast.c
index 6f53f8200dc3..c44699301eeb 100644
--- a/arch/sh/drivers/pci/fixups-dreamcast.c
+++ b/arch/sh/drivers/pci/fixups-dreamcast.c
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/pci.h>
+#include <linux/dma-mapping.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -40,6 +41,15 @@ static void __init gapspci_fixup_resources(struct pci_dev *dev)
                  */
                 dev->resource[1].start  = p->io_resource->start  + 0x100;
                 dev->resource[1].end    = dev->resource[1].start + 0x200 - 1;
+                /*
+                 * Redirect dma memory allocations to special memory window.
+                 */
+                BUG_ON(!dma_declare_coherent_memory(&dev->dev,
+                                                GAPSPCI_DMA_BASE,
+                                                GAPSPCI_DMA_BASE,
+                                                GAPSPCI_DMA_SIZE,
+                                                DMA_MEMORY_MAP |
+                                                DMA_MEMORY_EXCLUSIVE));
                 break;
         default:
                 printk("PCI: Failed resource fixup\n");