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authorGeoff Levand <geoffrey.levand@am.sony.com>2007-01-30 15:20:27 -0800
committerPaul Mackerras <paulus@samba.org>2007-02-07 14:03:19 +1100
commit2a08ea69a3e448a5cc94e5da9eccc40cf13f9532 (patch)
tree76fe2d0788c533b1d5fc1a89a34606d84b79961a /arch/powerpc/platforms
parent63c2f782e8f6aafbc11b14b2cb291b3dc9fc217d (diff)
downloadlinux-linaro-stable-2a08ea69a3e448a5cc94e5da9eccc40cf13f9532.tar.gz
[POWERPC] PS3: Move system bus to platform directory
Move the PS3 system bus routines from drivers/ps3 to arch/powerpc/platforms/ps3. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r--arch/powerpc/platforms/ps3/Makefile1
-rw-r--r--arch/powerpc/platforms/ps3/htab.c1
-rw-r--r--arch/powerpc/platforms/ps3/interrupt.c1
-rw-r--r--arch/powerpc/platforms/ps3/mm.c1
-rw-r--r--arch/powerpc/platforms/ps3/os-area.c1
-rw-r--r--arch/powerpc/platforms/ps3/platform.h151
-rw-r--r--arch/powerpc/platforms/ps3/repository.c3
-rw-r--r--arch/powerpc/platforms/ps3/setup.c1
-rw-r--r--arch/powerpc/platforms/ps3/smp.c1
-rw-r--r--arch/powerpc/platforms/ps3/spu.c3
-rw-r--r--arch/powerpc/platforms/ps3/system-bus.c363
11 files changed, 519 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/ps3/Makefile b/arch/powerpc/platforms/ps3/Makefile
index 1994904f580f..a0048fcf0866 100644
--- a/arch/powerpc/platforms/ps3/Makefile
+++ b/arch/powerpc/platforms/ps3/Makefile
@@ -1,5 +1,6 @@
obj-y += setup.o mm.o time.o hvcall.o htab.o repository.o
obj-y += interrupt.o exports.o os-area.o
+obj-y += system-bus.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SPU_BASE) += spu.o
diff --git a/arch/powerpc/platforms/ps3/htab.c b/arch/powerpc/platforms/ps3/htab.c
index 8fe1769655a3..a4b5a1bc60f4 100644
--- a/arch/powerpc/platforms/ps3/htab.c
+++ b/arch/powerpc/platforms/ps3/htab.c
@@ -23,7 +23,6 @@
#include <asm/machdep.h>
#include <asm/lmb.h>
#include <asm/udbg.h>
-#include <asm/ps3.h>
#include <asm/lv1call.h>
#include "platform.h"
diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c
index 95b128ba9087..bb17283275aa 100644
--- a/arch/powerpc/platforms/ps3/interrupt.c
+++ b/arch/powerpc/platforms/ps3/interrupt.c
@@ -24,7 +24,6 @@
#include <asm/machdep.h>
#include <asm/udbg.h>
-#include <asm/ps3.h>
#include <asm/lv1call.h>
#include "platform.h"
diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c
index 49c0d010d491..42354de3f557 100644
--- a/arch/powerpc/platforms/ps3/mm.c
+++ b/arch/powerpc/platforms/ps3/mm.c
@@ -25,7 +25,6 @@
#include <asm/firmware.h>
#include <asm/lmb.h>
#include <asm/udbg.h>
-#include <asm/ps3.h>
#include <asm/lv1call.h>
#include "platform.h"
diff --git a/arch/powerpc/platforms/ps3/os-area.c b/arch/powerpc/platforms/ps3/os-area.c
index 6d0d2ac39bd8..5c3da08bc0c4 100644
--- a/arch/powerpc/platforms/ps3/os-area.c
+++ b/arch/powerpc/platforms/ps3/os-area.c
@@ -22,7 +22,6 @@
#include <linux/io.h>
#include <asm/lmb.h>
-#include <asm/ps3.h>
#include "platform.h"
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index 23b111bea9d0..ca04f03305c7 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -22,6 +22,9 @@
#define _PS3_PLATFORM_H
#include <linux/rtc.h>
+#include <scsi/scsi.h>
+
+#include <asm/ps3.h>
/* htab */
@@ -65,4 +68,152 @@ void ps3_spu_set_platform (void);
static inline void ps3_spu_set_platform (void) {}
#endif
+/* repository bus info */
+
+enum ps3_bus_type {
+ PS3_BUS_TYPE_SB = 4,
+ PS3_BUS_TYPE_STORAGE = 5,
+};
+
+enum ps3_dev_type {
+ PS3_DEV_TYPE_STOR_DISK = TYPE_DISK, /* 0 */
+ PS3_DEV_TYPE_SB_GELIC = 3,
+ PS3_DEV_TYPE_SB_USB = 4,
+ PS3_DEV_TYPE_STOR_ROM = TYPE_ROM, /* 5 */
+ PS3_DEV_TYPE_SB_GPIO = 6,
+ PS3_DEV_TYPE_STOR_FLASH = TYPE_RBC, /* 14 */
+};
+
+int ps3_repository_read_bus_str(unsigned int bus_index, const char *bus_str,
+ u64 *value);
+int ps3_repository_read_bus_id(unsigned int bus_index, unsigned int *bus_id);
+int ps3_repository_read_bus_type(unsigned int bus_index,
+ enum ps3_bus_type *bus_type);
+int ps3_repository_read_bus_num_dev(unsigned int bus_index,
+ unsigned int *num_dev);
+
+/* repository bus device info */
+
+enum ps3_interrupt_type {
+ PS3_INTERRUPT_TYPE_EVENT_PORT = 2,
+ PS3_INTERRUPT_TYPE_SB_OHCI = 3,
+ PS3_INTERRUPT_TYPE_SB_EHCI = 4,
+ PS3_INTERRUPT_TYPE_OTHER = 5,
+};
+
+enum ps3_reg_type {
+ PS3_REG_TYPE_SB_OHCI = 3,
+ PS3_REG_TYPE_SB_EHCI = 4,
+ PS3_REG_TYPE_SB_GPIO = 5,
+};
+
+int ps3_repository_read_dev_str(unsigned int bus_index,
+ unsigned int dev_index, const char *dev_str, u64 *value);
+int ps3_repository_read_dev_id(unsigned int bus_index, unsigned int dev_index,
+ unsigned int *dev_id);
+int ps3_repository_read_dev_type(unsigned int bus_index,
+ unsigned int dev_index, enum ps3_dev_type *dev_type);
+int ps3_repository_read_dev_intr(unsigned int bus_index,
+ unsigned int dev_index, unsigned int intr_index,
+ enum ps3_interrupt_type *intr_type, unsigned int *interrupt_id);
+int ps3_repository_read_dev_reg_type(unsigned int bus_index,
+ unsigned int dev_index, unsigned int reg_index,
+ enum ps3_reg_type *reg_type);
+int ps3_repository_read_dev_reg_addr(unsigned int bus_index,
+ unsigned int dev_index, unsigned int reg_index, u64 *bus_addr,
+ u64 *len);
+int ps3_repository_read_dev_reg(unsigned int bus_index,
+ unsigned int dev_index, unsigned int reg_index,
+ enum ps3_reg_type *reg_type, u64 *bus_addr, u64 *len);
+
+/* repository bus enumerators */
+
+struct ps3_repository_device {
+ unsigned int bus_index;
+ unsigned int dev_index;
+ struct ps3_device_id did;
+};
+
+int ps3_repository_find_device(enum ps3_bus_type bus_type,
+ enum ps3_dev_type dev_type,
+ const struct ps3_repository_device *start_dev,
+ struct ps3_repository_device *dev);
+static inline int ps3_repository_find_first_device(
+ enum ps3_bus_type bus_type, enum ps3_dev_type dev_type,
+ struct ps3_repository_device *dev)
+{
+ return ps3_repository_find_device(bus_type, dev_type, NULL, dev);
+}
+int ps3_repository_find_interrupt(const struct ps3_repository_device *dev,
+ enum ps3_interrupt_type intr_type, unsigned int *interrupt_id);
+int ps3_repository_find_reg(const struct ps3_repository_device *dev,
+ enum ps3_reg_type reg_type, u64 *bus_addr, u64 *len);
+
+/* repository block device info */
+
+int ps3_repository_read_stor_dev_port(unsigned int bus_index,
+ unsigned int dev_index, u64 *port);
+int ps3_repository_read_stor_dev_blk_size(unsigned int bus_index,
+ unsigned int dev_index, u64 *blk_size);
+int ps3_repository_read_stor_dev_num_blocks(unsigned int bus_index,
+ unsigned int dev_index, u64 *num_blocks);
+int ps3_repository_read_stor_dev_num_regions(unsigned int bus_index,
+ unsigned int dev_index, unsigned int *num_regions);
+int ps3_repository_read_stor_dev_region_id(unsigned int bus_index,
+ unsigned int dev_index, unsigned int region_index,
+ unsigned int *region_id);
+int ps3_repository_read_stor_dev_region_size(unsigned int bus_index,
+ unsigned int dev_index, unsigned int region_index, u64 *region_size);
+int ps3_repository_read_stor_dev_region_start(unsigned int bus_index,
+ unsigned int dev_index, unsigned int region_index, u64 *region_start);
+int ps3_repository_read_stor_dev_info(unsigned int bus_index,
+ unsigned int dev_index, u64 *port, u64 *blk_size,
+ u64 *num_blocks, unsigned int *num_regions);
+int ps3_repository_read_stor_dev_region(unsigned int bus_index,
+ unsigned int dev_index, unsigned int region_index,
+ unsigned int *region_id, u64 *region_start, u64 *region_size);
+
+/* repository pu and memory info */
+
+int ps3_repository_read_num_pu(unsigned int *num_pu);
+int ps3_repository_read_ppe_id(unsigned int *pu_index, unsigned int *ppe_id);
+int ps3_repository_read_rm_base(unsigned int ppe_id, u64 *rm_base);
+int ps3_repository_read_rm_size(unsigned int ppe_id, u64 *rm_size);
+int ps3_repository_read_region_total(u64 *region_total);
+int ps3_repository_read_mm_info(u64 *rm_base, u64 *rm_size,
+ u64 *region_total);
+
+/* repository pme info */
+
+int ps3_repository_read_num_be(unsigned int *num_be);
+int ps3_repository_read_be_node_id(unsigned int be_index, u64 *node_id);
+int ps3_repository_read_tb_freq(u64 node_id, u64 *tb_freq);
+int ps3_repository_read_be_tb_freq(unsigned int be_index, u64 *tb_freq);
+
+/* repository 'Other OS' area */
+
+int ps3_repository_read_boot_dat_addr(u64 *lpar_addr);
+int ps3_repository_read_boot_dat_size(unsigned int *size);
+int ps3_repository_read_boot_dat_info(u64 *lpar_addr, unsigned int *size);
+
+/* repository spu info */
+
+/**
+ * enum spu_resource_type - Type of spu resource.
+ * @spu_resource_type_shared: Logical spu is shared with other partions.
+ * @spu_resource_type_exclusive: Logical spu is not shared with other partions.
+ *
+ * Returned by ps3_repository_read_spu_resource_id().
+ */
+
+enum ps3_spu_resource_type {
+ PS3_SPU_RESOURCE_TYPE_SHARED = 0,
+ PS3_SPU_RESOURCE_TYPE_EXCLUSIVE = 0x8000000000000000UL,
+};
+
+int ps3_repository_read_num_spu_reserved(unsigned int *num_spu_reserved);
+int ps3_repository_read_num_spu_resource_id(unsigned int *num_resource_id);
+int ps3_repository_read_spu_resource_id(unsigned int res_index,
+ enum ps3_spu_resource_type* resource_type, unsigned int *resource_id);
+
#endif
diff --git a/arch/powerpc/platforms/ps3/repository.c b/arch/powerpc/platforms/ps3/repository.c
index 2416bfadec9e..ae586a0e5d3f 100644
--- a/arch/powerpc/platforms/ps3/repository.c
+++ b/arch/powerpc/platforms/ps3/repository.c
@@ -18,9 +18,10 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include <asm/ps3.h>
#include <asm/lv1call.h>
+#include "platform.h"
+
enum ps3_vendor_id {
PS3_VENDOR_ID_NONE = 0,
PS3_VENDOR_ID_SONY = 0x8000000000000000UL,
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index cb91a81352bf..e62505e18813 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -32,7 +32,6 @@
#include <asm/udbg.h>
#include <asm/prom.h>
#include <asm/lv1call.h>
-#include <asm/ps3.h>
#include "platform.h"
diff --git a/arch/powerpc/platforms/ps3/smp.c b/arch/powerpc/platforms/ps3/smp.c
index bde71b0572bd..6fb887961a6d 100644
--- a/arch/powerpc/platforms/ps3/smp.c
+++ b/arch/powerpc/platforms/ps3/smp.c
@@ -23,7 +23,6 @@
#include <asm/machdep.h>
#include <asm/udbg.h>
-#include <asm/ps3.h>
#include "platform.h"
diff --git a/arch/powerpc/platforms/ps3/spu.c b/arch/powerpc/platforms/ps3/spu.c
index 9f6edc58568d..d1929721b0e4 100644
--- a/arch/powerpc/platforms/ps3/spu.c
+++ b/arch/powerpc/platforms/ps3/spu.c
@@ -26,9 +26,10 @@
#include <asm/spu.h>
#include <asm/spu_priv1.h>
-#include <asm/ps3.h>
#include <asm/lv1call.h>
+#include "platform.h"
+
/* spu_management_ops */
/**
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
new file mode 100644
index 000000000000..9f2c6a909e4d
--- /dev/null
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -0,0 +1,363 @@
+/*
+ * PS3 system bus driver.
+ *
+ * Copyright (C) 2006 Sony Computer Entertainment Inc.
+ * Copyright 2006 Sony Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/err.h>
+
+#include <asm/udbg.h>
+#include <asm/lv1call.h>
+#include <asm/firmware.h>
+
+#include "platform.h"
+
+#define dump_mmio_region(_a) _dump_mmio_region(_a, __func__, __LINE__)
+static void _dump_mmio_region(const struct ps3_mmio_region* r,
+ const char* func, int line)
+{
+ pr_debug("%s:%d: dev %u:%u\n", func, line, r->did.bus_id,
+ r->did.dev_id);
+ pr_debug("%s:%d: bus_addr %lxh\n", func, line, r->bus_addr);
+ pr_debug("%s:%d: len %lxh\n", func, line, r->len);
+ pr_debug("%s:%d: lpar_addr %lxh\n", func, line, r->lpar_addr);
+}
+
+int ps3_mmio_region_create(struct ps3_mmio_region *r)
+{
+ int result;
+
+ result = lv1_map_device_mmio_region(r->did.bus_id, r->did.dev_id,
+ r->bus_addr, r->len, r->page_size, &r->lpar_addr);
+
+ if (result) {
+ pr_debug("%s:%d: lv1_map_device_mmio_region failed: %s\n",
+ __func__, __LINE__, ps3_result(result));
+ r->lpar_addr = 0;
+ }
+
+ dump_mmio_region(r);
+ return result;
+}
+
+int ps3_free_mmio_region(struct ps3_mmio_region *r)
+{
+ int result;
+
+ result = lv1_unmap_device_mmio_region(r->did.bus_id, r->did.dev_id,
+ r->lpar_addr);
+
+ if (result)
+ pr_debug("%s:%d: lv1_unmap_device_mmio_region failed: %s\n",
+ __func__, __LINE__, ps3_result(result));
+
+ r->lpar_addr = 0;
+ return result;
+}
+
+static int ps3_system_bus_match(struct device *_dev,
+ struct device_driver *_drv)
+{
+ int result;
+ struct ps3_system_bus_driver *drv = to_ps3_system_bus_driver(_drv);
+ struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+
+ result = dev->match_id == drv->match_id;
+
+ pr_info("%s:%d: dev=%u(%s), drv=%u(%s): %s\n", __func__, __LINE__,
+ dev->match_id, dev->core.bus_id, drv->match_id, drv->core.name,
+ (result ? "match" : "miss"));
+ return result;
+}
+
+static int ps3_system_bus_probe(struct device *_dev)
+{
+ int result;
+ struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+ struct ps3_system_bus_driver *drv =
+ to_ps3_system_bus_driver(_dev->driver);
+
+ result = lv1_open_device(dev->did.bus_id, dev->did.dev_id, 0);
+
+ if (result) {
+ pr_debug("%s:%d: lv1_open_device failed (%d)\n",
+ __func__, __LINE__, result);
+ result = -EACCES;
+ goto clean_none;
+ }
+
+ if (dev->d_region->did.bus_id) {
+ result = ps3_dma_region_create(dev->d_region);
+
+ if (result) {
+ pr_debug("%s:%d: ps3_dma_region_create failed (%d)\n",
+ __func__, __LINE__, result);
+ BUG_ON("check region type");
+ result = -EINVAL;
+ goto clean_device;
+ }
+ }
+
+ BUG_ON(!drv);
+
+ if (drv->probe)
+ result = drv->probe(dev);
+ else
+ pr_info("%s:%d: %s no probe method\n", __func__, __LINE__,
+ dev->core.bus_id);
+
+ if (result) {
+ pr_debug("%s:%d: drv->probe failed\n", __func__, __LINE__);
+ goto clean_dma;
+ }
+
+ return result;
+
+clean_dma:
+ ps3_dma_region_free(dev->d_region);
+clean_device:
+ lv1_close_device(dev->did.bus_id, dev->did.dev_id);
+clean_none:
+ return result;
+}
+
+static int ps3_system_bus_remove(struct device *_dev)
+{
+ struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+ struct ps3_system_bus_driver *drv =
+ to_ps3_system_bus_driver(_dev->driver);
+
+ if (drv->remove)
+ drv->remove(dev);
+ else
+ pr_info("%s:%d: %s no remove method\n", __func__, __LINE__,
+ dev->core.bus_id);
+
+ ps3_dma_region_free(dev->d_region);
+ ps3_free_mmio_region(dev->m_region);
+ lv1_close_device(dev->did.bus_id, dev->did.dev_id);
+
+ return 0;
+}
+
+struct bus_type ps3_system_bus_type = {
+ .name = "ps3_system_bus",
+ .match = ps3_system_bus_match,
+ .probe = ps3_system_bus_probe,
+ .remove = ps3_system_bus_remove,
+};
+
+int __init ps3_system_bus_init(void)
+{
+ int result;
+
+ if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
+ return 0;
+
+ result = bus_register(&ps3_system_bus_type);
+ BUG_ON(result);
+ return result;
+}
+
+core_initcall(ps3_system_bus_init);
+
+/* Allocates a contiguous real buffer and creates mappings over it.
+ * Returns the virtual address of the buffer and sets dma_handle
+ * to the dma address (mapping) of the first page.
+ */
+
+static void * ps3_alloc_coherent(struct device *_dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flag)
+{
+ int result;
+ struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+ unsigned long virt_addr;
+
+ BUG_ON(!dev->d_region->bus_addr);
+
+ flag &= ~(__GFP_DMA | __GFP_HIGHMEM);
+ flag |= __GFP_ZERO;
+
+ virt_addr = __get_free_pages(flag, get_order(size));
+
+ if (!virt_addr) {
+ pr_debug("%s:%d: get_free_pages failed\n", __func__, __LINE__);
+ goto clean_none;
+ }
+
+ result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle);
+
+ if (result) {
+ pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
+ __func__, __LINE__, result);
+ BUG_ON("check region type");
+ goto clean_alloc;
+ }
+
+ return (void*)virt_addr;
+
+clean_alloc:
+ free_pages(virt_addr, get_order(size));
+clean_none:
+ dma_handle = NULL;
+ return NULL;
+}
+
+static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle)
+{
+ struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+
+ ps3_dma_unmap(dev->d_region, dma_handle, size);
+ free_pages((unsigned long)vaddr, get_order(size));
+}
+
+/* Creates TCEs for a user provided buffer. The user buffer must be
+ * contiguous real kernel storage (not vmalloc). The address of the buffer
+ * passed here is the kernel (virtual) address of the buffer. The buffer
+ * need not be page aligned, the dma_addr_t returned will point to the same
+ * byte within the page as vaddr.
+ */
+
+static dma_addr_t ps3_map_single(struct device *_dev, void *ptr, size_t size,
+ enum dma_data_direction direction)
+{
+ struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+ int result;
+ unsigned long bus_addr;
+
+ result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
+ &bus_addr);
+
+ if (result) {
+ pr_debug("%s:%d: ps3_dma_map failed (%d)\n",
+ __func__, __LINE__, result);
+ }
+
+ return bus_addr;
+}
+
+static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction direction)
+{
+ struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+ int result;
+
+ result = ps3_dma_unmap(dev->d_region, dma_addr, size);
+
+ if (result) {
+ pr_debug("%s:%d: ps3_dma_unmap failed (%d)\n",
+ __func__, __LINE__, result);
+ }
+}
+
+static int ps3_map_sg(struct device *_dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction direction)
+{
+#if defined(CONFIG_PS3_DYNAMIC_DMA)
+ BUG_ON("do");
+#endif
+ return 0;
+}
+
+static void ps3_unmap_sg(struct device *_dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction direction)
+{
+#if defined(CONFIG_PS3_DYNAMIC_DMA)
+ BUG_ON("do");
+#endif
+}
+
+static int ps3_dma_supported(struct device *_dev, u64 mask)
+{
+ return 1;
+}
+
+static struct dma_mapping_ops ps3_dma_ops = {
+ .alloc_coherent = ps3_alloc_coherent,
+ .free_coherent = ps3_free_coherent,
+ .map_single = ps3_map_single,
+ .unmap_single = ps3_unmap_single,
+ .map_sg = ps3_map_sg,
+ .unmap_sg = ps3_unmap_sg,
+ .dma_supported = ps3_dma_supported
+};
+
+/**
+ * ps3_system_bus_release_device - remove a device from the system bus
+ */
+
+static void ps3_system_bus_release_device(struct device *_dev)
+{
+ struct ps3_system_bus_device *dev = to_ps3_system_bus_device(_dev);
+ kfree(dev);
+}
+
+/**
+ * ps3_system_bus_device_register - add a device to the system bus
+ *
+ * ps3_system_bus_device_register() expects the dev object to be allocated
+ * dynamically by the caller. The system bus takes ownership of the dev
+ * object and frees the object in ps3_system_bus_release_device().
+ */
+
+int ps3_system_bus_device_register(struct ps3_system_bus_device *dev)
+{
+ int result;
+ static unsigned int dev_count = 1;
+
+ dev->core.parent = NULL;
+ dev->core.bus = &ps3_system_bus_type;
+ dev->core.release = ps3_system_bus_release_device;
+
+ dev->core.archdata.of_node = NULL;
+ dev->core.archdata.dma_ops = &ps3_dma_ops;
+ dev->core.archdata.numa_node = 0;
+
+ snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), "sb_%02x",
+ dev_count++);
+
+ pr_debug("%s:%d add %s\n", __func__, __LINE__, dev->core.bus_id);
+
+ result = device_register(&dev->core);
+ return result;
+}
+
+EXPORT_SYMBOL_GPL(ps3_system_bus_device_register);
+
+int ps3_system_bus_driver_register(struct ps3_system_bus_driver *drv)
+{
+ int result;
+
+ drv->core.bus = &ps3_system_bus_type;
+
+ result = driver_register(&drv->core);
+ return result;
+}
+
+EXPORT_SYMBOL_GPL(ps3_system_bus_driver_register);
+
+void ps3_system_bus_driver_unregister(struct ps3_system_bus_driver *drv)
+{
+ driver_unregister(&drv->core);
+}
+
+EXPORT_SYMBOL_GPL(ps3_system_bus_driver_unregister);