Ejemplo n.º 1
0
static int
xpc_gru_mq_watchlist_alloc_uv(struct xpc_gru_mq_uv *mq)
{
	int ret;

#if defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV
	int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);

	ret = sn_mq_watchlist_alloc(mmr_pnode, (void *)uv_gpa(mq->address),
				    mq->order, &mq->mmr_offset);
	if (ret < 0) {
		dev_err(xpc_part, "sn_mq_watchlist_alloc() failed, ret=%d\n",
			ret);
		return -EBUSY;
	}
#elif defined CONFIG_X86_64
	ret = uv_bios_mq_watchlist_alloc(uv_gpa(mq->address),
					 mq->order, &mq->mmr_offset);
	if (ret < 0) {
		dev_err(xpc_part, "uv_bios_mq_watchlist_alloc() failed, "
			"ret=%d\n", ret);
		return ret;
	}
#else
	#error not a supported configuration
#endif

	mq->watchlist_num = ret;
	return 0;
}
static int quicktest(struct gru_state *gru)
{
	void *cb;
	void *ds;
	unsigned long *p;

	cb = get_gseg_base_address_cb(gru->gs_gru_base_vaddr, KERNEL_CTXNUM, 0);
	ds = get_gseg_base_address_ds(gru->gs_gru_base_vaddr, KERNEL_CTXNUM, 0);
	p = ds;
	word0 = MAGIC;

	gru_vload(cb, uv_gpa(&word0), 0, XTYPE_DW, 1, 1, IMA);
	if (gru_wait(cb) != CBS_IDLE)
		BUG();

	if (*(unsigned long *)ds != MAGIC)
		BUG();
	gru_vstore(cb, uv_gpa(&word1), 0, XTYPE_DW, 1, 1, IMA);
	if (gru_wait(cb) != CBS_IDLE)
		BUG();

	if (word0 != word1 || word0 != MAGIC) {
		printk
		    ("GRU quicktest err: gru %d, found 0x%lx, expected 0x%lx\n",
		     gru->gs_gid, word1, MAGIC);
		BUG();		/* ZZZ should not be fatal */
	}

	return 0;
}
Ejemplo n.º 3
0
static int
xpc_setup_rsvd_page_uv(struct xpc_rsvd_page *rp)
{
	xpc_heartbeat_uv =
	    &xpc_partitions[sn_partition_id].sn.uv.cached_heartbeat;
	rp->sn.uv.heartbeat_gpa = uv_gpa(xpc_heartbeat_uv);
	rp->sn.uv.activate_gru_mq_desc_gpa =
	    uv_gpa(xpc_activate_mq_uv->gru_mq_desc);
	return 0;
}
Ejemplo n.º 4
0
static int quicktest3(unsigned long arg)
{
	char buf1[BUFSIZE], buf2[BUFSIZE];
	int ret = 0;

	memset(buf2, 0, sizeof(buf2));
	memset(buf1, get_cycles() & 255, sizeof(buf1));
	gru_copy_gpa(uv_gpa(buf2), uv_gpa(buf1), BUFSIZE);
	if (memcmp(buf1, buf2, BUFSIZE)) {
;
		ret = -EIO;
	}
	return ret;
}
Ejemplo n.º 5
0
static int quicktest3(unsigned long arg)
{
	char buf1[BUFSIZE], buf2[BUFSIZE];
	int ret = 0;

	memset(buf2, 0, sizeof(buf2));
	memset(buf1, get_cycles() & 255, sizeof(buf1));
	gru_copy_gpa(uv_gpa(buf2), uv_gpa(buf1), BUFSIZE);
	if (memcmp(buf1, buf2, BUFSIZE)) {
		printk(KERN_DEBUG "GRU:%d quicktest3 error\n", smp_processor_id());
		ret = -EIO;
	}
	return ret;
}
Ejemplo n.º 6
0
static void
xpc_request_partition_activation_uv(struct xpc_rsvd_page *remote_rp,
				    unsigned long remote_rp_gpa, int nasid)
{
	short partid = remote_rp->SAL_partid;
	struct xpc_partition *part = &xpc_partitions[partid];
	struct xpc_activate_mq_msg_activate_req_uv msg;

	part->remote_rp_pa = remote_rp_gpa; /* !!! _pa here is really _gpa */
	part->remote_rp_ts_jiffies = remote_rp->ts_jiffies;
	part->sn.uv.heartbeat_gpa = remote_rp->sn.uv.heartbeat_gpa;
	part->sn.uv.activate_gru_mq_desc_gpa =
	    remote_rp->sn.uv.activate_gru_mq_desc_gpa;

	/*
	 * ??? Is it a good idea to make this conditional on what is
	 * ??? potentially stale state information?
	 */
	if (part->sn.uv.remote_act_state == XPC_P_AS_INACTIVE) {
		msg.rp_gpa = uv_gpa(xpc_rsvd_page);
		msg.heartbeat_gpa = xpc_rsvd_page->sn.uv.heartbeat_gpa;
		msg.activate_gru_mq_desc_gpa =
		    xpc_rsvd_page->sn.uv.activate_gru_mq_desc_gpa;
		xpc_send_activate_IRQ_part_uv(part, &msg, sizeof(msg),
					   XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV);
	}

	if (part->act_state == XPC_P_AS_INACTIVE)
		xpc_send_local_activate_IRQ_uv(part, XPC_P_ASR_ACTIVATE_UV);
}
Ejemplo n.º 7
0
static void
xpc_request_partition_activation_uv(struct xpc_rsvd_page *remote_rp,
				    unsigned long remote_rp_gpa, int nasid)
{
	short partid = remote_rp->SAL_partid;
	struct xpc_partition *part = &xpc_partitions[partid];
	struct xpc_activate_mq_msg_activate_req_uv msg;

	part->remote_rp_pa = remote_rp_gpa; 
	part->remote_rp_ts_jiffies = remote_rp->ts_jiffies;
	part->sn.uv.heartbeat_gpa = remote_rp->sn.uv.heartbeat_gpa;
	part->sn.uv.activate_gru_mq_desc_gpa =
	    remote_rp->sn.uv.activate_gru_mq_desc_gpa;

	
	if (part->sn.uv.remote_act_state == XPC_P_AS_INACTIVE) {
		msg.rp_gpa = uv_gpa(xpc_rsvd_page);
		msg.heartbeat_gpa = xpc_rsvd_page->sn.uv.heartbeat_gpa;
		msg.activate_gru_mq_desc_gpa =
		    xpc_rsvd_page->sn.uv.activate_gru_mq_desc_gpa;
		xpc_send_activate_IRQ_part_uv(part, &msg, sizeof(msg),
					   XPC_ACTIVATE_MQ_MSG_ACTIVATE_REQ_UV);
	}

	if (part->act_state == XPC_P_AS_INACTIVE)
		xpc_send_local_activate_IRQ_uv(part, XPC_P_ASR_ACTIVATE_UV);
}
Ejemplo n.º 8
0
static int quicktest0(unsigned long arg)
{
	unsigned long word0;
	unsigned long word1;
	void *cb;
	void *dsr;
	unsigned long *p;
	int ret = -EIO;

	if (gru_get_cpu_resources(GRU_CACHE_LINE_BYTES, &cb, &dsr))
		return MQE_BUG_NO_RESOURCES;
	p = dsr;
	word0 = MAGIC;
	word1 = 0;

	gru_vload(cb, uv_gpa(&word0), gru_get_tri(dsr), XTYPE_DW, 1, 1, IMA);
	if (gru_wait(cb) != CBS_IDLE) {
;
		goto done;
	}

	if (*p != MAGIC) {
		printk(KERN_DEBUG "GRU:%d quicktest0 bad magic 0x%lx\n", smp_processor_id(), *p);
		goto done;
	}
	gru_vstore(cb, uv_gpa(&word1), gru_get_tri(dsr), XTYPE_DW, 1, 1, IMA);
	if (gru_wait(cb) != CBS_IDLE) {
;
		goto done;
	}

	if (word0 != word1 || word1 != MAGIC) {
//		printk(KERN_DEBUG
//		       "GRU:%d quicktest0 err: found 0x%lx, expected 0x%lx\n",
;
		goto done;
	}
	ret = 0;

done:
	gru_free_cpu_resources(cb, dsr);
	return ret;
}
Ejemplo n.º 9
0
static void
xpc_send_chctl_openreply_uv(struct xpc_channel *ch, unsigned long *irq_flags)
{
	struct xpc_activate_mq_msg_chctl_openreply_uv msg;

	msg.ch_number = ch->number;
	msg.local_nentries = ch->local_nentries;
	msg.remote_nentries = ch->remote_nentries;
	msg.notify_gru_mq_desc_gpa = uv_gpa(xpc_notify_mq_uv->gru_mq_desc);
	xpc_send_activate_IRQ_ch_uv(ch, irq_flags, &msg, sizeof(msg),
				    XPC_ACTIVATE_MQ_MSG_CHCTL_OPENREPLY_UV);
}
Ejemplo n.º 10
0
static enum xp_retval
xpc_cache_remote_gru_mq_desc_uv(struct gru_message_queue_desc *gru_mq_desc,
				unsigned long gru_mq_desc_gpa)
{
	enum xp_retval ret;

	ret = xp_remote_memcpy(uv_gpa(gru_mq_desc), gru_mq_desc_gpa,
			       sizeof(struct gru_message_queue_desc));
	if (ret == xpSuccess)
		gru_mq_desc->mq = NULL;

	return ret;
}
Ejemplo n.º 11
0
static int quicktest2(unsigned long arg)
{
	static DECLARE_COMPLETION(cmp);
	unsigned long han;
	int blade_id = 0;
	int numcb = 4;
	int ret = 0;
	unsigned long *buf;
	void *cb0, *cb;
	int i, k, istatus, bytes;

	bytes = numcb * 4 * 8;
	buf = kmalloc(bytes, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	ret = -EBUSY;
	han = gru_reserve_async_resources(blade_id, numcb, 0, &cmp);
	if (!han)
		goto done;

	gru_lock_async_resource(han, &cb0, NULL);
	memset(buf, 0xee, bytes);
	for (i = 0; i < numcb; i++)
		gru_vset(cb0 + i * GRU_HANDLE_STRIDE, uv_gpa(&buf[i * 4]), 0,
				XTYPE_DW, 4, 1, IMA_INTERRUPT);

	ret = 0;
	for (k = 0; k < numcb; k++) {
		gru_wait_async_cbr(han);
		for (i = 0; i < numcb; i++) {
			cb = cb0 + i * GRU_HANDLE_STRIDE;
			istatus = gru_check_status(cb);
			if (istatus == CBS_ACTIVE)
				continue;
			if (istatus == CBS_EXCEPTION)
				ret = -EFAULT;
			else if (buf[i] || buf[i + 1] || buf[i + 2] ||
					buf[i + 3])
				ret = -EIO;
		}
	}
	BUG_ON(cmp.done);

	gru_unlock_async_resource(han);
	gru_release_async_resources(han);
done:
	kfree(buf);
	return ret;
}
Ejemplo n.º 12
0
static enum xp_retval
xpc_get_remote_heartbeat_uv(struct xpc_partition *part)
{
	struct xpc_partition_uv *part_uv = &part->sn.uv;
	enum xp_retval ret;

	ret = xp_remote_memcpy(uv_gpa(&part_uv->cached_heartbeat),
			       part_uv->heartbeat_gpa,
			       sizeof(struct xpc_heartbeat_uv));
	if (ret != xpSuccess)
		return ret;

	if (part_uv->cached_heartbeat.value == part->last_heartbeat &&
	    !part_uv->cached_heartbeat.offline) {

		ret = xpNoHeartbeat;
	} else {
		part->last_heartbeat = part_uv->cached_heartbeat.value;
	}
	return ret;
}
Ejemplo n.º 13
0
/*
 * Create a message queue.
 * 	qlines - message queue size in cache lines. Includes 2-line header.
 */
int gru_create_message_queue(struct gru_message_queue_desc *mqd,
		void *p, unsigned int bytes, int nasid, int vector, int apicid)
{
	struct message_queue *mq = p;
	unsigned int qlines;

	qlines = bytes / GRU_CACHE_LINE_BYTES - 2;
	memset(mq, 0, bytes);
	mq->start = &mq->data;
	mq->start2 = &mq->data + (qlines / 2 - 1) * GRU_CACHE_LINE_BYTES;
	mq->next = &mq->data;
	mq->limit = &mq->data + (qlines - 2) * GRU_CACHE_LINE_BYTES;
	mq->qlines = qlines;
	mq->hstatus[0] = 0;
	mq->hstatus[1] = 1;
	mq->head = gru_mesq_head(2, qlines / 2 + 1);
	mqd->mq = mq;
	mqd->mq_gpa = uv_gpa(mq);
	mqd->qlines = qlines;
	mqd->interrupt_pnode = nasid >> 1;
	mqd->interrupt_vector = vector;
	mqd->interrupt_apicid = apicid;
	return 0;
}
Ejemplo n.º 14
0
static int quicktest2(unsigned long arg)
{
	static DECLARE_COMPLETION(cmp);
	unsigned long han;
	int blade_id = 0;
	int numcb = 4;
	int ret = 0;
	unsigned long *buf;
	void *cb0, *cb;
	struct gru_control_block_status *gen;
	int i, k, istatus, bytes;

	bytes = numcb * 4 * 8;
	buf = kmalloc(bytes, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	ret = -EBUSY;
	han = gru_reserve_async_resources(blade_id, numcb, 0, &cmp);
	if (!han)
		goto done;

	gru_lock_async_resource(han, &cb0, NULL);
	memset(buf, 0xee, bytes);
	for (i = 0; i < numcb; i++)
		gru_vset(cb0 + i * GRU_HANDLE_STRIDE, uv_gpa(&buf[i * 4]), 0,
				XTYPE_DW, 4, 1, IMA_INTERRUPT);

	ret = 0;
	k = numcb;
	do {
		gru_wait_async_cbr(han);
		for (i = 0; i < numcb; i++) {
			cb = cb0 + i * GRU_HANDLE_STRIDE;
			istatus = gru_check_status(cb);
			if (istatus != CBS_ACTIVE && istatus != CBS_CALL_OS)
				break;
		}
		if (i == numcb)
			continue;
		if (istatus != CBS_IDLE) {
;
			ret = -EFAULT;
		} else if (buf[4 * i] || buf[4 * i + 1] || buf[4 * i + 2] ||
				buf[4 * i + 3]) {
//			printk(KERN_DEBUG "GRU:%d quicktest2:cb %d,  buf 0x%lx, 0x%lx, 0x%lx, 0x%lx\n",
;
			ret = -EIO;
		}
		k--;
		gen = cb;
		gen->istatus = CBS_CALL_OS; /* don't handle this CBR again */
	} while (k);
	BUG_ON(cmp.done);

	gru_unlock_async_resource(han);
	gru_release_async_resources(han);
done:
	kfree(buf);
	return ret;
}
Ejemplo n.º 15
0
Archivo: xp_uv.c Proyecto: 020gzh/linux
/*
 * Convert a virtual memory address to a physical memory address.
 */
static unsigned long
xp_pa_uv(void *addr)
{
	return uv_gpa(addr);
}