config SGI_XP
tristate "Support communication between SGI SSIs"
- depends on IA64_GENERIC || IA64_SGI_SN2
+ depends on IA64_GENERIC || IA64_SGI_SN2 || IA64_SGI_UV || (X86_64 && SMP)
select IA64_UNCACHED_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
select GENERIC_ALLOCATOR if IA64_GENERIC || IA64_SGI_SN2
---help---
#
obj-$(CONFIG_SGI_XP) += xp.o
-xp-y := xp_main.o xp_uv.o
-xp-$(CONFIG_IA64) += xp_sn2.o xp_nofault.o
+xp-y := xp_main.o
+xp-$(CONFIG_IA64_SGI_SN2) += xp_sn2.o xp_nofault.o
+xp-$(CONFIG_IA64_GENERIC) += xp_sn2.o xp_nofault.o xp_uv.o
+xp-$(CONFIG_IA64_SGI_UV) += xp_uv.o
+xp-$(CONFIG_X86_64) += xp_uv.o
obj-$(CONFIG_SGI_XP) += xpc.o
-xpc-y := xpc_main.o xpc_uv.o xpc_channel.o xpc_partition.o
-xpc-$(CONFIG_IA64) += xpc_sn2.o
+xpc-y := xpc_main.o xpc_channel.o xpc_partition.o
+xpc-$(CONFIG_IA64_SGI_SN2) += xpc_sn2.o
+xpc-$(CONFIG_IA64_GENERIC) += xpc_sn2.o xpc_uv.o
+xpc-$(CONFIG_IA64_SGI_UV) += xpc_uv.o
+xpc-$(CONFIG_X86_64) += xpc_uv.o
obj-$(CONFIG_SGI_XP) += xpnet.o
#ifndef _DRIVERS_MISC_SGIXP_XP_H
#define _DRIVERS_MISC_SGIXP_XP_H
-#include <linux/cache.h>
-#include <linux/hardirq.h>
#include <linux/mutex.h>
-#include <asm/sn/types.h>
+
#ifdef CONFIG_IA64
-#include <asm/sn/arch.h>
+#include <asm/system.h>
+#include <asm/sn/arch.h> /* defines is_shub1() and is_shub2() */
+#define is_shub() ia64_platform_is("sn2")
+#define is_uv() ia64_platform_is("uv")
#endif
-
-#ifdef USE_DBUG_ON
-#define DBUG_ON(condition) BUG_ON(condition)
-#else
-#define DBUG_ON(condition)
+#ifdef CONFIG_X86_64
+#include <asm/genapic.h>
+#define is_uv() is_uv_system()
#endif
#ifndef is_shub1
#endif
#ifndef is_shub
-#define is_shub() (is_shub1() || is_shub2())
+#define is_shub() 0
#endif
#ifndef is_uv
#define is_uv() 0
#endif
+#ifdef USE_DBUG_ON
+#define DBUG_ON(condition) BUG_ON(condition)
+#else
+#define DBUG_ON(condition)
+#endif
+
/*
* Define the maximum number of partitions the system can possibly support.
* It is based on the maximum number of hardware partitionable regions. The
xpPayloadTooBig, /* 55: payload too large for message slot */
xpUnsupported, /* 56: unsupported functionality or resource */
- xpUnknownReason /* 57: unknown reason - must be last in enum */
+ xpNeedMoreInfo, /* 57: more info is needed by SAL */
+
+ xpUnknownReason /* 58: unknown reason - must be last in enum */
};
/*
}
extern short xp_max_npartitions;
+extern short xp_partition_id;
+extern u8 xp_region_size;
extern enum xp_retval (*xp_remote_memcpy) (void *, const void *, size_t);
+extern int (*xp_cpu_to_nasid) (int);
extern u64 xp_nofault_PIOR_target;
extern int xp_nofault_PIOR(void *);
*
*/
-#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include "xp.h"
short xp_max_npartitions;
EXPORT_SYMBOL_GPL(xp_max_npartitions);
+short xp_partition_id;
+EXPORT_SYMBOL_GPL(xp_partition_id);
+
+u8 xp_region_size;
+EXPORT_SYMBOL_GPL(xp_region_size);
+
enum xp_retval (*xp_remote_memcpy) (void *dst, const void *src, size_t len);
EXPORT_SYMBOL_GPL(xp_remote_memcpy);
+int (*xp_cpu_to_nasid) (int cpuid);
+EXPORT_SYMBOL_GPL(xp_cpu_to_nasid);
+
/*
* xpc_registrations[] keeps track of xpc_connect()'s done by the kernel-level
* users of XPC.
* Architecture specific implementation of common functions.
*/
+#include <linux/module.h>
#include <linux/device.h>
#include <asm/sn/bte.h>
#include <asm/sn/sn_sal.h>
return xpBteCopyError;
}
+static int
+xp_cpu_to_nasid_sn2(int cpuid)
+{
+ return cpuid_to_nasid(cpuid);
+}
+
enum xp_retval
xp_init_sn2(void)
{
BUG_ON(!is_shub());
xp_max_npartitions = XP_MAX_NPARTITIONS_SN2;
+ xp_partition_id = sn_partition_id;
+ xp_region_size = sn_region_size;
xp_remote_memcpy = xp_remote_memcpy_sn2;
+ xp_cpu_to_nasid = xp_cpu_to_nasid_sn2;
return xp_register_nofault_code_sn2();
}
#ifndef _DRIVERS_MISC_SGIXP_XPC_H
#define _DRIVERS_MISC_SGIXP_XPC_H
-#include <linux/interrupt.h>
-#include <linux/sysctl.h>
-#include <linux/device.h>
-#include <linux/mutex.h>
+#include <linux/wait.h>
#include <linux/completion.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/sn/clksupport.h>
-#include <asm/sn/addrs.h>
-#include <asm/sn/mspec.h>
-#include <asm/sn/shub_mmr.h>
+#include <linux/timer.h>
+#include <linux/sched.h>
#include "xp.h"
/*
#define XPC_RP_HEADER_SIZE L1_CACHE_ALIGN(sizeof(struct xpc_rsvd_page))
#define XPC_RP_VARS_SIZE L1_CACHE_ALIGN(sizeof(struct xpc_vars_sn2))
-#define XPC_RP_PART_NASIDS(_rp) ((u64 *)((u8 *)(_rp) + XPC_RP_HEADER_SIZE))
+#define XPC_RP_PART_NASIDS(_rp) ((unsigned long *)((u8 *)(_rp) + \
+ XPC_RP_HEADER_SIZE))
#define XPC_RP_MACH_NASIDS(_rp) (XPC_RP_PART_NASIDS(_rp) + \
xpc_nasid_mask_nlongs)
#define XPC_RP_VARS(_rp) ((struct xpc_vars_sn2 *) \
/*
* Define a Get/Put value pair (pointers) used with a message queue.
*/
-struct xpc_gp {
+struct xpc_gp_sn2 {
s64 get; /* Get value */
s64 put; /* Put value */
};
#define XPC_GP_SIZE \
- L1_CACHE_ALIGN(sizeof(struct xpc_gp) * XPC_MAX_NCHANNELS)
+ L1_CACHE_ALIGN(sizeof(struct xpc_gp_sn2) * XPC_MAX_NCHANNELS)
/*
* Define a structure that contains arguments associated with opening and
/* various flavors of local and remote Get/Put values */
- struct xpc_gp *local_GP; /* local Get/Put values */
- struct xpc_gp remote_GP; /* remote Get/Put values */
- struct xpc_gp w_local_GP; /* working local Get/Put values */
- struct xpc_gp w_remote_GP; /* working remote Get/Put values */
+ struct xpc_gp_sn2 *local_GP; /* local Get/Put values */
+ struct xpc_gp_sn2 remote_GP; /* remote Get/Put values */
+ struct xpc_gp_sn2 w_local_GP; /* working local Get/Put values */
+ struct xpc_gp_sn2 w_remote_GP; /* working remote Get/Put values */
s64 next_msg_to_pull; /* Put value of next msg to pull */
struct mutex msg_to_pull_mutex; /* next msg to pull serialization */
u8 remote_vars_version; /* version# of partition's vars */
void *local_GPs_base; /* base address of kmalloc'd space */
- struct xpc_gp *local_GPs; /* local Get/Put values */
+ struct xpc_gp_sn2 *local_GPs; /* local Get/Put values */
void *remote_GPs_base; /* base address of kmalloc'd space */
- struct xpc_gp *remote_GPs; /* copy of remote partition's local */
+ struct xpc_gp_sn2 *remote_GPs; /* copy of remote partition's local */
/* Get/Put values */
u64 remote_GPs_pa; /* phys address of remote partition's local */
/* Get/Put values */
extern void xpc_activate_kthreads(struct xpc_channel *, int);
extern void xpc_create_kthreads(struct xpc_channel *, int, int);
extern void xpc_disconnect_wait(int);
+extern enum xp_retval (*xpc_get_partition_rsvd_page_pa) (u64, u64 *, u64 *,
+ size_t *);
extern enum xp_retval (*xpc_rsvd_page_init) (struct xpc_rsvd_page *);
extern void (*xpc_heartbeat_init) (void);
extern void (*xpc_heartbeat_exit) (void);
*
*/
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/cache.h>
-#include <linux/interrupt.h>
-#include <linux/mutex.h>
-#include <linux/completion.h>
-#include <asm/sn/sn_sal.h>
+#include <linux/device.h>
#include "xpc.h"
/*
dev_dbg(xpc_chan, "XPC_CHCTL_OPENREPLY (local_msgqueue_pa="
"0x%lx, local_nentries=%d, remote_nentries=%d) "
"received from partid=%d, channel=%d\n",
- args->local_msgqueue_pa, args->local_nentries,
- args->remote_nentries, ch->partid, ch->number);
+ (unsigned long)args->local_msgqueue_pa,
+ args->local_nentries, args->remote_nentries,
+ ch->partid, ch->number);
if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED)) {
spin_unlock_irqrestore(&ch->lock, irq_flags);
if (ch->func != NULL) {
dev_dbg(xpc_chan, "ch->func() called, msg=0x%p, "
"msg_number=%ld, partid=%d, channel=%d\n",
- (void *)msg, msg->number, ch->partid,
+ msg, (signed long)msg->number, ch->partid,
ch->number);
/* deliver the message to its intended recipient */
dev_dbg(xpc_chan, "ch->func() returned, msg=0x%p, "
"msg_number=%ld, partid=%d, channel=%d\n",
- (void *)msg, msg->number, ch->partid,
+ msg, (signed long)msg->number, ch->partid,
ch->number);
}
*
*/
-#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/cache.h>
-#include <linux/interrupt.h>
+#include <linux/sysctl.h>
+#include <linux/device.h>
#include <linux/delay.h>
#include <linux/reboot.h>
-#include <linux/completion.h>
#include <linux/kdebug.h>
#include <linux/kthread.h>
-#include <linux/uaccess.h>
-#include <asm/sn/intr.h>
-#include <asm/sn/sn_sal.h>
#include "xpc.h"
/* define two XPC debug device structures to be used with dev_dbg() et al */
.notifier_call = xpc_system_die,
};
+enum xp_retval (*xpc_get_partition_rsvd_page_pa) (u64 buf, u64 *cookie,
+ u64 *paddr, size_t *len);
enum xp_retval (*xpc_rsvd_page_init) (struct xpc_rsvd_page *rp);
void (*xpc_heartbeat_init) (void);
void (*xpc_heartbeat_exit) (void);
struct xpc_partition *part;
short partid;
int any_engaged;
- long time, printmsg_time, disengage_timeout;
+ long keep_waiting;
+ long wait_to_print;
/* keep xpc_hb_checker thread from doing anything (just in case) */
xpc_exiting = 1;
}
}
- time = rtc_time();
- printmsg_time = time +
- (XPC_DEACTIVATE_PRINTMSG_INTERVAL * sn_rtc_cycles_per_second);
- disengage_timeout = time +
- (xpc_disengage_timelimit * sn_rtc_cycles_per_second);
-
/*
* Though we requested that all other partitions deactivate from us,
- * we only wait until they've all disengaged.
+ * we only wait until they've all disengaged or we've reached the
+ * defined timelimit.
+ *
+ * Given that one iteration through the following while-loop takes
+ * approximately 200 microseconds, calculate the #of loops to take
+ * before bailing and the #of loops before printing a waiting message.
*/
+ keep_waiting = xpc_disengage_timelimit * 1000 * 5;
+ wait_to_print = XPC_DEACTIVATE_PRINTMSG_INTERVAL * 1000 * 5;
while (1) {
any_engaged = xpc_any_partition_engaged();
break;
}
- time = rtc_time();
- if (time >= disengage_timeout) {
+ if (!keep_waiting--) {
for (partid = 0; partid < xp_max_npartitions;
partid++) {
if (xpc_partition_engaged(partid)) {
break;
}
- if (time >= printmsg_time) {
+ if (!wait_to_print--) {
dev_info(xpc_part, "waiting for remote partitions to "
"deactivate, timeout in %ld seconds\n",
- (disengage_timeout - time) /
- sn_rtc_cycles_per_second);
- printmsg_time = time +
- (XPC_DEACTIVATE_PRINTMSG_INTERVAL *
- sn_rtc_cycles_per_second);
+ keep_waiting / (1000 * 5));
+ wait_to_print = XPC_DEACTIVATE_PRINTMSG_INTERVAL *
+ 1000 * 5;
}
+
+ udelay(200);
}
}
static int
xpc_system_die(struct notifier_block *nb, unsigned long event, void *unused)
{
+#ifdef CONFIG_IA64 /* !!! temporary kludge */
switch (event) {
case DIE_MACHINE_RESTART:
case DIE_MACHINE_HALT:
xpc_online_heartbeat();
break;
}
+#else
+ xpc_die_deactivate();
+#endif
return NOTIFY_DONE;
}
*
*/
-#include <linux/kernel.h>
-#include <linux/sysctl.h>
-#include <linux/cache.h>
-#include <linux/mmzone.h>
-#include <linux/nodemask.h>
-#include <asm/sn/intr.h>
-#include <asm/sn/sn_sal.h>
-#include <asm/sn/nodepda.h>
-#include <asm/sn/addrs.h>
+#include <linux/device.h>
+#include <linux/hardirq.h>
#include "xpc.h"
/* XPC is exiting flag */
xpc_get_rsvd_page_pa(int nasid)
{
enum xp_retval ret;
- s64 status;
u64 cookie = 0;
u64 rp_pa = nasid; /* seed with nasid */
- u64 len = 0;
+ size_t len = 0;
u64 buf = buf;
u64 buf_len = 0;
void *buf_base = NULL;
while (1) {
- status = sn_partition_reserved_page_pa(buf, &cookie, &rp_pa,
- &len);
+ ret = xpc_get_partition_rsvd_page_pa(buf, &cookie, &rp_pa,
+ &len);
- dev_dbg(xpc_part, "SAL returned with status=%li, cookie="
- "0x%016lx, address=0x%016lx, len=0x%016lx\n",
- status, cookie, rp_pa, len);
+ dev_dbg(xpc_part, "SAL returned with ret=%d, cookie=0x%016lx, "
+ "address=0x%016lx, len=0x%016lx\n", ret,
+ (unsigned long)cookie, (unsigned long)rp_pa, len);
- if (status != SALRET_MORE_PASSES)
+ if (ret != xpNeedMoreInfo)
break;
/* !!! L1_CACHE_ALIGN() is only a sn2-bte_copy requirement */
&buf_base);
if (buf_base == NULL) {
dev_err(xpc_part, "unable to kmalloc "
- "len=0x%016lx\n", buf_len);
- status = SALRET_ERROR;
+ "len=0x%016lx\n",
+ (unsigned long)buf_len);
+ ret = xpNoMemory;
break;
}
}
ret = xp_remote_memcpy((void *)buf, (void *)rp_pa, buf_len);
if (ret != xpSuccess) {
dev_dbg(xpc_part, "xp_remote_memcpy failed %d\n", ret);
- status = SALRET_ERROR;
break;
}
}
kfree(buf_base);
- if (status != SALRET_OK)
+ if (ret != xpSuccess)
rp_pa = 0;
- dev_dbg(xpc_part, "reserved page at phys address 0x%016lx\n", rp_pa);
+ dev_dbg(xpc_part, "reserved page at phys address 0x%016lx\n",
+ (unsigned long)rp_pa);
return rp_pa;
}
/* get the local reserved page's address */
preempt_disable();
- rp_pa = xpc_get_rsvd_page_pa(cpuid_to_nasid(smp_processor_id()));
+ rp_pa = xpc_get_rsvd_page_pa(xp_cpu_to_nasid(smp_processor_id()));
preempt_enable();
if (rp_pa == 0) {
dev_err(xpc_part, "SAL failed to locate the reserved page\n");
/* SAL_versions < 3 had a SAL_partid defined as a u8 */
rp->SAL_partid &= 0xff;
}
- BUG_ON(rp->SAL_partid != sn_partition_id);
+ BUG_ON(rp->SAL_partid != xp_partition_id);
if (rp->SAL_partid < 0 || rp->SAL_partid >= xp_max_npartitions) {
dev_err(xpc_part, "the reserved page's partid of %d is outside "
/* check that both remote and local partids are valid for each side */
if (remote_rp->SAL_partid < 0 ||
remote_rp->SAL_partid >= xp_max_npartitions ||
- remote_rp->max_npartitions <= sn_partition_id) {
+ remote_rp->max_npartitions <= xp_partition_id) {
return xpInvalidPartid;
}
- if (remote_rp->SAL_partid == sn_partition_id)
+ if (remote_rp->SAL_partid == xp_partition_id)
return xpLocalPartid;
return xpSuccess;
* protection is in regards to memory, IOI and IPI.
*/
max_regions = 64;
- region_size = sn_region_size;
+ region_size = xp_region_size;
switch (region_size) {
case 128:
*
*/
-#include <linux/kernel.h>
#include <linux/delay.h>
#include <asm/uncached.h>
+#include <asm/sn/mspec.h>
#include <asm/sn/sn_sal.h>
#include "xpc.h"
local_irq_restore(irq_flags);
- return ((ret == 0) ? xpSuccess : xpPioReadError);
+ return (ret == 0) ? xpSuccess : xpPioReadError;
}
static struct amo *
short partid = (short)(u64)dev_id;
struct xpc_partition *part = &xpc_partitions[partid];
- DBUG_ON(partid < 0 || partid >= xp_max_npartitions);
+ DBUG_ON(partid < 0 || partid >= XP_MAX_NPARTITIONS_SN2);
if (xpc_part_ref(part)) {
xpc_check_for_sent_chctl_flags_sn2(part);
}
static enum xp_retval
+xpc_get_partition_rsvd_page_pa_sn2(u64 buf, u64 *cookie, u64 *paddr,
+ size_t *len)
+{
+ s64 status;
+ enum xp_retval ret;
+
+ status = sn_partition_reserved_page_pa(buf, cookie, paddr, len);
+ if (status == SALRET_OK)
+ ret = xpSuccess;
+ else if (status == SALRET_MORE_PASSES)
+ ret = xpNeedMoreInfo;
+ else
+ ret = xpSalError;
+
+ return ret;
+}
+
+
+static enum xp_retval
xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp)
{
struct amo *amos_page;
/* clear xpc_vars_part_sn2 */
memset((u64 *)xpc_vars_part_sn2, 0, sizeof(struct xpc_vars_part_sn2) *
- xp_max_npartitions);
+ XP_MAX_NPARTITIONS_SN2);
/* initialize the activate IRQ related amo variables */
for (i = 0; i < xpc_nasid_mask_nlongs; i++)
remote_vars = (struct xpc_vars_sn2 *)xpc_remote_copy_buffer_sn2;
- for (partid = 0; partid < xp_max_npartitions; partid++) {
+ for (partid = 0; partid < XP_MAX_NPARTITIONS_SN2; partid++) {
if (xpc_exiting)
break;
int ret;
size_t buf_size;
+ xpc_get_partition_rsvd_page_pa = xpc_get_partition_rsvd_page_pa_sn2;
xpc_rsvd_page_init = xpc_rsvd_page_init_sn2;
xpc_increment_heartbeat = xpc_increment_heartbeat_sn2;
xpc_offline_heartbeat = xpc_offline_heartbeat_sn2;
*/
#include <linux/kernel.h>
-
-/* !!! #include <gru/grukservices.h> */
-/* !!! uv_gpa() is defined in <gru/grukservices.h> */
-#define uv_gpa(_a) ((unsigned long)_a)
-
+#include <asm/uv/uv_hub.h>
+#include "../sgi-gru/grukservices.h"
#include "xpc.h"
static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV);
*/
#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
-#include <linux/delay.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/smp.h>
-#include <linux/string.h>
-#include <asm/atomic.h>
#include "xp.h"
/*
return;
}
- dev_dbg(xpnet, "received 0x%lx, %d, %d, %d\n", msg->buf_pa, msg->size,
- msg->leadin_ignore, msg->tailout_ignore);
+ dev_dbg(xpnet, "received 0x%lx, %d, %d, %d\n",
+ (unsigned long)msg->buf_pa, msg->size, msg->leadin_ignore,
+ msg->tailout_ignore);
/* reserve an extra cache line */
skb = dev_alloc_skb(msg->size + L1_CACHE_BYTES);
dev_dbg(xpnet, "calling xpc_connect(%d, 0x%p, NULL, %ld, %ld, %ld, "
"%ld)\n", XPC_NET_CHANNEL, xpnet_connection_activity,
- XPNET_MSG_SIZE, XPNET_MSG_NENTRIES, XPNET_MAX_KTHREADS,
- XPNET_MAX_IDLE_KTHREADS);
+ (unsigned long)XPNET_MSG_SIZE,
+ (unsigned long)XPNET_MSG_NENTRIES,
+ (unsigned long)XPNET_MAX_KTHREADS,
+ (unsigned long)XPNET_MAX_IDLE_KTHREADS);
ret = xpc_connect(XPC_NET_CHANNEL, xpnet_connection_activity, NULL,
XPNET_MSG_SIZE, XPNET_MSG_NENTRIES,
dev_dbg(xpnet, "sending XPC message to %d:%d\n"
KERN_DEBUG "msg->buf_pa=0x%lx, msg->size=%u, "
"msg->leadin_ignore=%u, msg->tailout_ignore=%u\n",
- dest_partid, XPC_NET_CHANNEL, msg->buf_pa, msg->size,
- msg->leadin_ignore, msg->tailout_ignore);
+ dest_partid, XPC_NET_CHANNEL, (unsigned long)msg->buf_pa,
+ msg->size, msg->leadin_ignore, msg->tailout_ignore);
atomic_inc(&queued_msg->use_count);
*/
xpnet_device->dev_addr[0] = 0x02; /* locally administered, no OUI */
- xpnet_device->dev_addr[XPNET_PARTID_OCTET + 1] = sn_partition_id;
- xpnet_device->dev_addr[XPNET_PARTID_OCTET + 0] = (sn_partition_id >> 8);
+ xpnet_device->dev_addr[XPNET_PARTID_OCTET + 1] = xp_partition_id;
+ xpnet_device->dev_addr[XPNET_PARTID_OCTET + 0] = (xp_partition_id >> 8);
/*
* ether_setup() sets this to a multicast device. We are
projects / platform / kernel / linux-amlogic.git / commitdiff