From: Matt Porter Addresses issues raised with the 2.6.12-rc6-mm1 RIO support. Fix dma_mask init, shrink some code, general cleanup. Signed-off-by: Matt Porter Signed-off-by: Andrew Morton --- drivers/rapidio/rio-scan.c | 35 ++++++++++------------------------- drivers/rapidio/rio.h | 3 +++ include/linux/rio.h | 2 ++ include/linux/rio_regs.h | 13 +++++++++++++ 4 files changed, 28 insertions(+), 25 deletions(-) diff -puN drivers/rapidio/rio.h~rapidio-support-core-enum-fix drivers/rapidio/rio.h --- 25/drivers/rapidio/rio.h~rapidio-support-core-enum-fix 2005-06-07 20:49:07.000000000 -0700 +++ 25-akpm/drivers/rapidio/rio.h 2005-06-07 20:49:07.000000000 -0700 @@ -26,6 +26,9 @@ extern int rio_disc_mport(struct rio_mpo extern struct device_attribute rio_dev_attrs[]; extern spinlock_t rio_global_list_lock; +extern struct rio_route_ops __start_rio_route_ops[]; +extern struct rio_route_ops __end_rio_route_ops[]; + /* Helpers internal to the RIO core code */ #define DECLARE_RIO_ROUTE_SECTION(section, vid, did, add_hook, get_hook) \ static struct rio_route_ops __rio_route_ops __attribute_used__ \ diff -puN drivers/rapidio/rio-scan.c~rapidio-support-core-enum-fix drivers/rapidio/rio-scan.c --- 25/drivers/rapidio/rio-scan.c~rapidio-support-core-enum-fix 2005-06-07 20:49:07.000000000 -0700 +++ 25-akpm/drivers/rapidio/rio-scan.c 2005-06-07 20:49:07.000000000 -0700 @@ -15,6 +15,7 @@ #include #include +#include #include #include #include @@ -33,7 +34,8 @@ static LIST_HEAD(rio_switches); static void rio_enum_timeout(unsigned long); -spinlock_t rio_global_list_lock = SPIN_LOCK_UNLOCKED; +DEFINE_SPINLOCK(rio_global_list_lock); + static int next_destid = 0; static int next_switchid = 0; static int next_net = 0; @@ -55,9 +57,6 @@ static int rio_sport_phys_table[] = { -1, }; -extern struct rio_route_ops __start_rio_route_ops[]; -extern struct rio_route_ops __end_rio_route_ops[]; - /** * rio_get_device_id - Get the base/extended device id for a device * @port: RIO master port @@ -85,8 +84,7 @@ static u16 rio_get_device_id(struct rio_ * * Writes the base/extended device id from a device. */ -static void -rio_set_device_id(struct rio_mport *port, u16 destid, u8 hopcount, u16 did) +static void rio_set_device_id(struct rio_mport *port, u16 destid, u8 hopcount, u16 did) { rio_mport_write_config_32(port, destid, hopcount, RIO_DID_CSR, RIO_SET_DID(did)); @@ -192,23 +190,9 @@ static int rio_enum_host(struct rio_mpor static int rio_device_has_destid(struct rio_mport *port, int src_ops, int dst_ops) { - if (((src_ops & RIO_SRC_OPS_READ) || - (src_ops & RIO_SRC_OPS_WRITE) || - (src_ops & RIO_SRC_OPS_ATOMIC_TST_SWP) || - (src_ops & RIO_SRC_OPS_ATOMIC_INC) || - (src_ops & RIO_SRC_OPS_ATOMIC_DEC) || - (src_ops & RIO_SRC_OPS_ATOMIC_SET) || - (src_ops & RIO_SRC_OPS_ATOMIC_CLR)) && - ((dst_ops & RIO_DST_OPS_READ) || - (dst_ops & RIO_DST_OPS_WRITE) || - (dst_ops & RIO_DST_OPS_ATOMIC_TST_SWP) || - (dst_ops & RIO_DST_OPS_ATOMIC_INC) || - (dst_ops & RIO_DST_OPS_ATOMIC_DEC) || - (dst_ops & RIO_DST_OPS_ATOMIC_SET) || - (dst_ops & RIO_DST_OPS_ATOMIC_CLR))) { - return 1; - } else - return 0; + u32 mask = RIO_OPS_READ | RIO_OPS_WRITE | RIO_OPS_ATOMIC_TST_SWP | RIO_OPS_ATOMIC_INC | RIO_OPS_ATOMIC_DEC | RIO_OPS_ATOMIC_SET | RIO_OPS_ATOMIC_CLR; + + return !!((src_ops | dst_ops) & mask); } /** @@ -383,8 +367,9 @@ static struct rio_dev *rio_setup_device( rdev->dev.release = rio_release_dev; rio_dev_get(rdev); - rdev->dev.dma_mask = (u64 *) 0xffffffff; - rdev->dev.coherent_dma_mask = 0xffffffffULL; + rdev->dma_mask = DMA_32BIT_MASK; + rdev->dev.dma_mask = &rdev->dma_mask; + rdev->dev.coherent_dma_mask = DMA_32BIT_MASK; if ((rdev->pef & RIO_PEF_INB_DOORBELL) && (rdev->dst_ops & RIO_DST_OPS_DOORBELL)) diff -puN include/linux/rio.h~rapidio-support-core-enum-fix include/linux/rio.h --- 25/include/linux/rio.h~rapidio-support-core-enum-fix 2005-06-07 20:49:07.000000000 -0700 +++ 25-akpm/include/linux/rio.h 2005-06-07 20:49:07.000000000 -0700 @@ -91,6 +91,7 @@ struct rio_mport; * @swpinfo: Switch port info * @src_ops: Source operation capabilities * @dst_ops: Destination operation capabilities + * @dma_mask: Mask of bits of RIO address this device implements * @rswitch: Pointer to &struct rio_switch if valid for this device * @driver: Driver claiming this device * @dev: Device model device @@ -112,6 +113,7 @@ struct rio_dev { u32 swpinfo; /* Only used for switches */ u32 src_ops; u32 dst_ops; + u64 dma_mask; struct rio_switch *rswitch; /* RIO switch info */ struct rio_driver *driver; /* RIO driver claiming this device */ struct device dev; /* LDM device structure */ diff -puN include/linux/rio_regs.h~rapidio-support-core-enum-fix include/linux/rio_regs.h --- 25/include/linux/rio_regs.h~rapidio-support-core-enum-fix 2005-06-07 20:49:07.000000000 -0700 +++ 25-akpm/include/linux/rio_regs.h 2005-06-07 20:49:07.000000000 -0700 @@ -78,6 +78,19 @@ #define RIO_DST_OPS_ATOMIC_CLR 0x00000010 /* [I] Atomic clr op */ #define RIO_DST_OPS_PORT_WRITE 0x00000004 /* [I] Port-write op */ +#define RIO_OPS_READ 0x00008000 /* [I] Read op */ +#define RIO_OPS_WRITE 0x00004000 /* [I] Write op */ +#define RIO_OPS_STREAM_WRITE 0x00002000 /* [I] Str-write op */ +#define RIO_OPS_WRITE_RESPONSE 0x00001000 /* [I] Write/resp op */ +#define RIO_OPS_DATA_MSG 0x00000800 /* [II] Data msg op */ +#define RIO_OPS_DOORBELL 0x00000400 /* [II] Doorbell op */ +#define RIO_OPS_ATOMIC_TST_SWP 0x00000100 /* [I] Atomic TAS op */ +#define RIO_OPS_ATOMIC_INC 0x00000080 /* [I] Atomic inc op */ +#define RIO_OPS_ATOMIC_DEC 0x00000040 /* [I] Atomic dec op */ +#define RIO_OPS_ATOMIC_SET 0x00000020 /* [I] Atomic set op */ +#define RIO_OPS_ATOMIC_CLR 0x00000010 /* [I] Atomic clr op */ +#define RIO_OPS_PORT_WRITE 0x00000004 /* [I] Port-write op */ + /* 0x20-0x3c *//* Reserved */ #define RIO_MBOX_CSR 0x40 /* [II] Mailbox CSR */ _