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-rw-r--r--arch/ppc64/kernel/hvcserver.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/arch/ppc64/kernel/hvcserver.c b/arch/ppc64/kernel/hvcserver.c
deleted file mode 100644
index 4d58417..0000000
--- a/arch/ppc64/kernel/hvcserver.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/*
- * hvcserver.c
- * Copyright (C) 2004 Ryan S Arnold, IBM Corporation
- *
- * PPC64 virtual I/O console server support.
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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/list.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-
-#include <asm/hvcall.h>
-#include <asm/hvcserver.h>
-#include <asm/io.h>
-
-#define HVCS_ARCH_VERSION "1.0.0"
-
-MODULE_AUTHOR("Ryan S. Arnold <rsa@us.ibm.com>");
-MODULE_DESCRIPTION("IBM hvcs ppc64 API");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(HVCS_ARCH_VERSION);
-
-/*
- * Convert arch specific return codes into relevant errnos. The hvcs
- * functions aren't performance sensitive, so this conversion isn't an
- * issue.
- */
-int hvcs_convert(long to_convert)
-{
- switch (to_convert) {
- case H_Success:
- return 0;
- case H_Parameter:
- return -EINVAL;
- case H_Hardware:
- return -EIO;
- case H_Busy:
- case H_LongBusyOrder1msec:
- case H_LongBusyOrder10msec:
- case H_LongBusyOrder100msec:
- case H_LongBusyOrder1sec:
- case H_LongBusyOrder10sec:
- case H_LongBusyOrder100sec:
- return -EBUSY;
- case H_Function: /* fall through */
- default:
- return -EPERM;
- }
-}
-
-/**
- * hvcs_free_partner_info - free pi allocated by hvcs_get_partner_info
- * @head: list_head pointer for an allocated list of partner info structs to
- * free.
- *
- * This function is used to free the partner info list that was returned by
- * calling hvcs_get_partner_info().
- */
-int hvcs_free_partner_info(struct list_head *head)
-{
- struct hvcs_partner_info *pi;
- struct list_head *element;
-
- if (!head)
- return -EINVAL;
-
- while (!list_empty(head)) {
- element = head->next;
- pi = list_entry(element, struct hvcs_partner_info, node);
- list_del(element);
- kfree(pi);
- }
-
- return 0;
-}
-EXPORT_SYMBOL(hvcs_free_partner_info);
-
-/* Helper function for hvcs_get_partner_info */
-int hvcs_next_partner(uint32_t unit_address,
- unsigned long last_p_partition_ID,
- unsigned long last_p_unit_address, unsigned long *pi_buff)
-
-{
- long retval;
- retval = plpar_hcall_norets(H_VTERM_PARTNER_INFO, unit_address,
- last_p_partition_ID,
- last_p_unit_address, virt_to_phys(pi_buff));
- return hvcs_convert(retval);
-}
-
-/**
- * hvcs_get_partner_info - Get all of the partner info for a vty-server adapter
- * @unit_address: The unit_address of the vty-server adapter for which this
- * function is fetching partner info.
- * @head: An initialized list_head pointer to an empty list to use to return the
- * list of partner info fetched from the hypervisor to the caller.
- * @pi_buff: A page sized buffer pre-allocated prior to calling this function
- * that is to be used to be used by firmware as an iterator to keep track
- * of the partner info retrieval.
- *
- * This function returns non-zero on success, or if there is no partner info.
- *
- * The pi_buff is pre-allocated prior to calling this function because this
- * function may be called with a spin_lock held and kmalloc of a page is not
- * recommended as GFP_ATOMIC.
- *
- * The first long of this buffer is used to store a partner unit address. The
- * second long is used to store a partner partition ID and starting at
- * pi_buff[2] is the 79 character Converged Location Code (diff size than the
- * unsigned longs, hence the casting mumbo jumbo you see later).
- *
- * Invocation of this function should always be followed by an invocation of
- * hvcs_free_partner_info() using a pointer to the SAME list head instance
- * that was passed as a parameter to this function.
- */
-int hvcs_get_partner_info(uint32_t unit_address, struct list_head *head,
- unsigned long *pi_buff)
-{
- /*
- * Dealt with as longs because of the hcall interface even though the
- * values are uint32_t.
- */
- unsigned long last_p_partition_ID;
- unsigned long last_p_unit_address;
- struct hvcs_partner_info *next_partner_info = NULL;
- int more = 1;
- int retval;
-
- memset(pi_buff, 0x00, PAGE_SIZE);
- /* invalid parameters */
- if (!head || !pi_buff)
- return -EINVAL;
-
- last_p_partition_ID = last_p_unit_address = ~0UL;
- INIT_LIST_HEAD(head);
-
- do {
- retval = hvcs_next_partner(unit_address, last_p_partition_ID,
- last_p_unit_address, pi_buff);
- if (retval) {
- /*
- * Don't indicate that we've failed if we have
- * any list elements.
- */
- if (!list_empty(head))
- return 0;
- return retval;
- }
-
- last_p_partition_ID = pi_buff[0];
- last_p_unit_address = pi_buff[1];
-
- /* This indicates that there are no further partners */
- if (last_p_partition_ID == ~0UL
- && last_p_unit_address == ~0UL)
- break;
-
- /* This is a very small struct and will be freed soon in
- * hvcs_free_partner_info(). */
- next_partner_info = kmalloc(sizeof(struct hvcs_partner_info),
- GFP_ATOMIC);
-
- if (!next_partner_info) {
- printk(KERN_WARNING "HVCONSOLE: kmalloc() failed to"
- " allocate partner info struct.\n");
- hvcs_free_partner_info(head);
- return -ENOMEM;
- }
-
- next_partner_info->unit_address
- = (unsigned int)last_p_unit_address;
- next_partner_info->partition_ID
- = (unsigned int)last_p_partition_ID;
-
- /* copy the Null-term char too */
- strncpy(&next_partner_info->location_code[0],
- (char *)&pi_buff[2],
- strlen((char *)&pi_buff[2]) + 1);
-
- list_add_tail(&(next_partner_info->node), head);
- next_partner_info = NULL;
-
- } while (more);
-
- return 0;
-}
-EXPORT_SYMBOL(hvcs_get_partner_info);
-
-/**
- * hvcs_register_connection - establish a connection between this vty-server and
- * a vty.
- * @unit_address: The unit address of the vty-server adapter that is to be
- * establish a connection.
- * @p_partition_ID: The partition ID of the vty adapter that is to be connected.
- * @p_unit_address: The unit address of the vty adapter to which the vty-server
- * is to be connected.
- *
- * If this function is called once and -EINVAL is returned it may
- * indicate that the partner info needs to be refreshed for the
- * target unit address at which point the caller must invoke
- * hvcs_get_partner_info() and then call this function again. If,
- * for a second time, -EINVAL is returned then it indicates that
- * there is probably already a partner connection registered to a
- * different vty-server adapter. It is also possible that a second
- * -EINVAL may indicate that one of the parms is not valid, for
- * instance if the link was removed between the vty-server adapter
- * and the vty adapter that you are trying to open. Don't shoot the
- * messenger. Firmware implemented it this way.
- */
-int hvcs_register_connection( uint32_t unit_address,
- uint32_t p_partition_ID, uint32_t p_unit_address)
-{
- long retval;
- retval = plpar_hcall_norets(H_REGISTER_VTERM, unit_address,
- p_partition_ID, p_unit_address);
- return hvcs_convert(retval);
-}
-EXPORT_SYMBOL(hvcs_register_connection);
-
-/**
- * hvcs_free_connection - free the connection between a vty-server and vty
- * @unit_address: The unit address of the vty-server that is to have its
- * connection severed.
- *
- * This function is used to free the partner connection between a vty-server
- * adapter and a vty adapter.
- *
- * If -EBUSY is returned continue to call this function until 0 is returned.
- */
-int hvcs_free_connection(uint32_t unit_address)
-{
- long retval;
- retval = plpar_hcall_norets(H_FREE_VTERM, unit_address);
- return hvcs_convert(retval);
-}
-EXPORT_SYMBOL(hvcs_free_connection);
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