staging: tidspbridge: remove driver

The driver has been broken and disabled for several kernel versions now.
It doesn't have a maintainer anymore, and most of the people who've
worked on it have moved on. There's also still a long list of issues in
the TODO file before it can be moved out of staging. Until someone can
put in the work to make the driver work again and move it out of
staging, remove it from the kernel.

Signed-off-by: Kristina Martšenko <kristina.martsenko@gmail.com>
Cc: Omar Ramirez Luna <omar.ramirez@copitl.com>
Cc: Suman Anna <s-anna@ti.com>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 816 deletions

diff --git a/drivers/staging/tidspbridge/rmgr/drv.c b/drivers/staging/tidspbridge/rmgr/drv.c
deleted file mode 100644
index 757ae20b38ee..000000000000
--- a/drivers/staging/tidspbridge/rmgr/drv.c
+++ /dev/null
@@ -1,816 +0,0 @@
-/*
- * drv.c
- *
- * DSP-BIOS Bridge driver support functions for TI OMAP processors.
- *
- * DSP/BIOS Bridge resource allocation module.
- *
- * Copyright (C) 2005-2006 Texas Instruments, Inc.
- *
- * This package is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-#include <linux/types.h>
-#include <linux/list.h>
-
-/*  ----------------------------------- Host OS */
-#include <dspbridge/host_os.h>
-
-/*  ----------------------------------- DSP/BIOS Bridge */
-#include <dspbridge/dbdefs.h>
-
-/*  ----------------------------------- This */
-#include <dspbridge/drv.h>
-#include <dspbridge/dev.h>
-
-#include <dspbridge/node.h>
-#include <dspbridge/proc.h>
-#include <dspbridge/strm.h>
-#include <dspbridge/nodepriv.h>
-#include <dspbridge/dspchnl.h>
-#include <dspbridge/resourcecleanup.h>
-
-/*  ----------------------------------- Defines, Data Structures, Typedefs */
-struct drv_object {
-	struct list_head dev_list;
-	struct list_head dev_node_string;
-};
-
-/*
- *  This is the Device Extension. Named with the Prefix
- *  DRV_ since it is living in this module
- */
-struct drv_ext {
-	struct list_head link;
-	char sz_string[MAXREGPATHLENGTH];
-};
-
-/*  ----------------------------------- Globals */
-static bool ext_phys_mem_pool_enabled;
-struct ext_phys_mem_pool {
-	u32 phys_mem_base;
-	u32 phys_mem_size;
-	u32 virt_mem_base;
-	u32 next_phys_alloc_ptr;
-};
-static struct ext_phys_mem_pool ext_mem_pool;
-
-/*  ----------------------------------- Function Prototypes */
-static int request_bridge_resources(struct cfg_hostres *res);
-
-
-/* GPP PROCESS CLEANUP CODE */
-
-static int drv_proc_free_node_res(int id, void *p, void *data);
-
-/* Allocate and add a node resource element
-* This function is called from .Node_Allocate. */
-int drv_insert_node_res_element(void *hnode, void *node_resource,
-				       void *process_ctxt)
-{
-	struct node_res_object **node_res_obj =
-	    (struct node_res_object **)node_resource;
-	struct process_context *ctxt = (struct process_context *)process_ctxt;
-	int retval;
-
-	*node_res_obj = kzalloc(sizeof(struct node_res_object), GFP_KERNEL);
-	if (!*node_res_obj)
-		return -ENOMEM;
-
-	(*node_res_obj)->node = hnode;
-	retval = idr_alloc(ctxt->node_id, *node_res_obj, 0, 0, GFP_KERNEL);
-	if (retval >= 0) {
-		(*node_res_obj)->id = retval;
-		return 0;
-	}
-
-	kfree(*node_res_obj);
-
-	if (retval == -ENOSPC) {
-		pr_err("%s: FAILED, IDR is FULL\n", __func__);
-		return -EFAULT;
-	} else {
-		pr_err("%s: OUT OF MEMORY\n", __func__);
-		return -ENOMEM;
-	}
-}
-
-/* Release all Node resources and its context
- * Actual Node De-Allocation */
-static int drv_proc_free_node_res(int id, void *p, void *data)
-{
-	struct process_context *ctxt = data;
-	int status;
-	struct node_res_object *node_res_obj = p;
-	u32 node_state;
-
-	if (node_res_obj->node_allocated) {
-		node_state = node_get_state(node_res_obj->node);
-		if (node_state <= NODE_DELETING) {
-			if ((node_state == NODE_RUNNING) ||
-			    (node_state == NODE_PAUSED) ||
-			    (node_state == NODE_TERMINATING))
-				node_terminate
-				    (node_res_obj->node, &status);
-
-			node_delete(node_res_obj, ctxt);
-		}
-	}
-
-	return 0;
-}
-
-/* Release all Mapped and Reserved DMM resources */
-int drv_remove_all_dmm_res_elements(void *process_ctxt)
-{
-	struct process_context *ctxt = (struct process_context *)process_ctxt;
-	int status = 0;
-	struct dmm_map_object *temp_map, *map_obj;
-	struct dmm_rsv_object *temp_rsv, *rsv_obj;
-
-	/* Free DMM mapped memory resources */
-	list_for_each_entry_safe(map_obj, temp_map, &ctxt->dmm_map_list, link) {
-		status = proc_un_map(ctxt->processor,
-				     (void *)map_obj->dsp_addr, ctxt);
-		if (status)
-			pr_err("%s: proc_un_map failed!"
-			       " status = 0x%xn", __func__, status);
-	}
-
-	/* Free DMM reserved memory resources */
-	list_for_each_entry_safe(rsv_obj, temp_rsv, &ctxt->dmm_rsv_list, link) {
-		status = proc_un_reserve_memory(ctxt->processor, (void *)
-						rsv_obj->dsp_reserved_addr,
-						ctxt);
-		if (status)
-			pr_err("%s: proc_un_reserve_memory failed!"
-			       " status = 0x%xn", __func__, status);
-	}
-	return status;
-}
-
-/* Update Node allocation status */
-void drv_proc_node_update_status(void *node_resource, s32 status)
-{
-	struct node_res_object *node_res_obj =
-	    (struct node_res_object *)node_resource;
-	node_res_obj->node_allocated = status;
-}
-
-/* Update Node Heap status */
-void drv_proc_node_update_heap_status(void *node_resource, s32 status)
-{
-	struct node_res_object *node_res_obj =
-	    (struct node_res_object *)node_resource;
-	node_res_obj->heap_allocated = status;
-}
-
-/* Release all Node resources and its context
-* This is called from .bridge_release.
- */
-int drv_remove_all_node_res_elements(void *process_ctxt)
-{
-	struct process_context *ctxt = process_ctxt;
-
-	idr_for_each(ctxt->node_id, drv_proc_free_node_res, ctxt);
-	idr_destroy(ctxt->node_id);
-
-	return 0;
-}
-
-/* Allocate the STRM resource element
-* This is called after the actual resource is allocated
- */
-int drv_proc_insert_strm_res_element(void *stream_obj,
-					    void *strm_res, void *process_ctxt)
-{
-	struct strm_res_object **pstrm_res =
-	    (struct strm_res_object **)strm_res;
-	struct process_context *ctxt = (struct process_context *)process_ctxt;
-	int retval;
-
-	*pstrm_res = kzalloc(sizeof(struct strm_res_object), GFP_KERNEL);
-	if (*pstrm_res == NULL)
-		return -EFAULT;
-
-	(*pstrm_res)->stream = stream_obj;
-	retval = idr_alloc(ctxt->stream_id, *pstrm_res, 0, 0, GFP_KERNEL);
-	if (retval >= 0) {
-		(*pstrm_res)->id = retval;
-		return 0;
-	}
-
-	if (retval == -ENOSPC) {
-		pr_err("%s: FAILED, IDR is FULL\n", __func__);
-		return -EPERM;
-	} else {
-		pr_err("%s: OUT OF MEMORY\n", __func__);
-		return -ENOMEM;
-	}
-}
-
-static int drv_proc_free_strm_res(int id, void *p, void *process_ctxt)
-{
-	struct process_context *ctxt = process_ctxt;
-	struct strm_res_object *strm_res = p;
-	struct stream_info strm_info;
-	struct dsp_streaminfo user;
-	u8 **ap_buffer = NULL;
-	u8 *buf_ptr;
-	u32 ul_bytes;
-	u32 dw_arg;
-	s32 ul_buf_size;
-
-	if (strm_res->num_bufs) {
-		ap_buffer = kmalloc((strm_res->num_bufs *
-				       sizeof(u8 *)), GFP_KERNEL);
-		if (ap_buffer) {
-			strm_free_buffer(strm_res,
-						  ap_buffer,
-						  strm_res->num_bufs,
-						  ctxt);
-			kfree(ap_buffer);
-		}
-	}
-	strm_info.user_strm = &user;
-	user.number_bufs_in_stream = 0;
-	strm_get_info(strm_res->stream, &strm_info, sizeof(strm_info));
-	while (user.number_bufs_in_stream--)
-		strm_reclaim(strm_res->stream, &buf_ptr, &ul_bytes,
-			     (u32 *) &ul_buf_size, &dw_arg);
-	strm_close(strm_res, ctxt);
-	return 0;
-}
-
-/* Release all Stream resources and its context
-* This is called from .bridge_release.
- */
-int drv_remove_all_strm_res_elements(void *process_ctxt)
-{
-	struct process_context *ctxt = process_ctxt;
-
-	idr_for_each(ctxt->stream_id, drv_proc_free_strm_res, ctxt);
-	idr_destroy(ctxt->stream_id);
-
-	return 0;
-}
-
-/* Updating the stream resource element */
-int drv_proc_update_strm_res(u32 num_bufs, void *strm_resources)
-{
-	int status = 0;
-	struct strm_res_object **strm_res =
-	    (struct strm_res_object **)strm_resources;
-
-	(*strm_res)->num_bufs = num_bufs;
-	return status;
-}
-
-/* GPP PROCESS CLEANUP CODE END */
-
-/*
- *  ======== = drv_create ======== =
- *  Purpose:
- *      DRV Object gets created only once during Driver Loading.
- */
-int drv_create(struct drv_object **drv_obj)
-{
-	int status = 0;
-	struct drv_object *pdrv_object = NULL;
-	struct drv_data *drv_datap = dev_get_drvdata(bridge);
-
-	pdrv_object = kzalloc(sizeof(struct drv_object), GFP_KERNEL);
-	if (pdrv_object) {
-		/* Create and Initialize List of device objects */
-		INIT_LIST_HEAD(&pdrv_object->dev_list);
-		INIT_LIST_HEAD(&pdrv_object->dev_node_string);
-	} else {
-		status = -ENOMEM;
-	}
-	/* Store the DRV Object in the driver data */
-	if (!status) {
-		if (drv_datap) {
-			drv_datap->drv_object = (void *)pdrv_object;
-		} else {
-			status = -EPERM;
-			pr_err("%s: Failed to store DRV object\n", __func__);
-		}
-	}
-
-	if (!status) {
-		*drv_obj = pdrv_object;
-	} else {
-		/* Free the DRV Object */
-		kfree(pdrv_object);
-	}
-
-	return status;
-}
-
-/*
- *  ======== = drv_destroy ======== =
- *  purpose:
- *      Invoked during bridge de-initialization
- */
-int drv_destroy(struct drv_object *driver_obj)
-{
-	int status = 0;
-	struct drv_object *pdrv_object = (struct drv_object *)driver_obj;
-	struct drv_data *drv_datap = dev_get_drvdata(bridge);
-
-	kfree(pdrv_object);
-	/* Update the DRV Object in the driver data */
-	if (drv_datap) {
-		drv_datap->drv_object = NULL;
-	} else {
-		status = -EPERM;
-		pr_err("%s: Failed to store DRV object\n", __func__);
-	}
-
-	return status;
-}
-
-/*
- *  ======== drv_get_dev_object ========
- *  Purpose:
- *      Given a index, returns a handle to DevObject from the list.
- */
-int drv_get_dev_object(u32 index, struct drv_object *hdrv_obj,
-			      struct dev_object **device_obj)
-{
-	int status = 0;
-	struct dev_object *dev_obj;
-	u32 i;
-
-	dev_obj = (struct dev_object *)drv_get_first_dev_object();
-	for (i = 0; i < index; i++) {
-		dev_obj =
-		    (struct dev_object *)drv_get_next_dev_object((u32) dev_obj);
-	}
-	if (dev_obj) {
-		*device_obj = (struct dev_object *)dev_obj;
-	} else {
-		*device_obj = NULL;
-		status = -EPERM;
-	}
-
-	return status;
-}
-
-/*
- *  ======== drv_get_first_dev_object ========
- *  Purpose:
- *      Retrieve the first Device Object handle from an internal linked list of
- *      of DEV_OBJECTs maintained by DRV.
- */
-u32 drv_get_first_dev_object(void)
-{
-	u32 dw_dev_object = 0;
-	struct drv_object *pdrv_obj;
-	struct drv_data *drv_datap = dev_get_drvdata(bridge);
-
-	if (drv_datap && drv_datap->drv_object) {
-		pdrv_obj = drv_datap->drv_object;
-		if (!list_empty(&pdrv_obj->dev_list))
-			dw_dev_object = (u32) pdrv_obj->dev_list.next;
-	} else {
-		pr_err("%s: Failed to retrieve the object handle\n", __func__);
-	}
-
-	return dw_dev_object;
-}
-
-/*
- *  ======== DRV_GetFirstDevNodeString ========
- *  Purpose:
- *      Retrieve the first Device Extension from an internal linked list of
- *      of Pointer to dev_node Strings maintained by DRV.
- */
-u32 drv_get_first_dev_extension(void)
-{
-	u32 dw_dev_extension = 0;
-	struct drv_object *pdrv_obj;
-	struct drv_data *drv_datap = dev_get_drvdata(bridge);
-
-	if (drv_datap && drv_datap->drv_object) {
-		pdrv_obj = drv_datap->drv_object;
-		if (!list_empty(&pdrv_obj->dev_node_string)) {
-			dw_dev_extension =
-			    (u32) pdrv_obj->dev_node_string.next;
-		}
-	} else {
-		pr_err("%s: Failed to retrieve the object handle\n", __func__);
-	}
-
-	return dw_dev_extension;
-}
-
-/*
- *  ======== drv_get_next_dev_object ========
- *  Purpose:
- *      Retrieve the next Device Object handle from an internal linked list of
- *      of DEV_OBJECTs maintained by DRV, after having previously called
- *      drv_get_first_dev_object() and zero or more DRV_GetNext.
- */
-u32 drv_get_next_dev_object(u32 hdev_obj)
-{
-	u32 dw_next_dev_object = 0;
-	struct drv_object *pdrv_obj;
-	struct drv_data *drv_datap = dev_get_drvdata(bridge);
-	struct list_head *curr;
-
-	if (drv_datap && drv_datap->drv_object) {
-		pdrv_obj = drv_datap->drv_object;
-		if (!list_empty(&pdrv_obj->dev_list)) {
-			curr = (struct list_head *)hdev_obj;
-			if (list_is_last(curr, &pdrv_obj->dev_list))
-				return 0;
-			dw_next_dev_object = (u32) curr->next;
-		}
-	} else {
-		pr_err("%s: Failed to retrieve the object handle\n", __func__);
-	}
-
-	return dw_next_dev_object;
-}
-
-/*
- *  ======== drv_get_next_dev_extension ========
- *  Purpose:
- *      Retrieve the next Device Extension from an internal linked list of
- *      of pointer to DevNodeString maintained by DRV, after having previously
- *      called drv_get_first_dev_extension() and zero or more
- *      drv_get_next_dev_extension().
- */
-u32 drv_get_next_dev_extension(u32 dev_extension)
-{
-	u32 dw_dev_extension = 0;
-	struct drv_object *pdrv_obj;
-	struct drv_data *drv_datap = dev_get_drvdata(bridge);
-	struct list_head *curr;
-
-	if (drv_datap && drv_datap->drv_object) {
-		pdrv_obj = drv_datap->drv_object;
-		if (!list_empty(&pdrv_obj->dev_node_string)) {
-			curr = (struct list_head *)dev_extension;
-			if (list_is_last(curr, &pdrv_obj->dev_node_string))
-				return 0;
-			dw_dev_extension = (u32) curr->next;
-		}
-	} else {
-		pr_err("%s: Failed to retrieve the object handle\n", __func__);
-	}
-
-	return dw_dev_extension;
-}
-
-/*
- *  ======== drv_insert_dev_object ========
- *  Purpose:
- *      Insert a DevObject into the list of Manager object.
- */
-int drv_insert_dev_object(struct drv_object *driver_obj,
-				 struct dev_object *hdev_obj)
-{
-	struct drv_object *pdrv_object = (struct drv_object *)driver_obj;
-
-	list_add_tail((struct list_head *)hdev_obj, &pdrv_object->dev_list);
-
-	return 0;
-}
-
-/*
- *  ======== drv_remove_dev_object ========
- *  Purpose:
- *      Search for and remove a DeviceObject from the given list of DRV
- *      objects.
- */
-int drv_remove_dev_object(struct drv_object *driver_obj,
-				 struct dev_object *hdev_obj)
-{
-	int status = -EPERM;
-	struct drv_object *pdrv_object = (struct drv_object *)driver_obj;
-	struct list_head *cur_elem;
-
-	/* Search list for p_proc_object: */
-	list_for_each(cur_elem, &pdrv_object->dev_list) {
-		/* If found, remove it. */
-		if ((struct dev_object *)cur_elem == hdev_obj) {
-			list_del(cur_elem);
-			status = 0;
-			break;
-		}
-	}
-
-	return status;
-}
-
-/*
- *  ======== drv_request_resources ========
- *  Purpose:
- *      Requests  resources from the OS.
- */
-int drv_request_resources(u32 dw_context, u32 *dev_node_strg)
-{
-	int status = 0;
-	struct drv_object *pdrv_object;
-	struct drv_ext *pszdev_node;
-	struct drv_data *drv_datap = dev_get_drvdata(bridge);
-
-	/*
-	 *  Allocate memory to hold the string. This will live until
-	 *  it is freed in the Release resources. Update the driver object
-	 *  list.
-	 */
-
-	if (!drv_datap || !drv_datap->drv_object)
-		status = -ENODATA;
-	else
-		pdrv_object = drv_datap->drv_object;
-
-	if (!status) {
-		pszdev_node = kzalloc(sizeof(struct drv_ext), GFP_KERNEL);
-		if (pszdev_node) {
-			strncpy(pszdev_node->sz_string,
-				(char *)dw_context, MAXREGPATHLENGTH - 1);
-			pszdev_node->sz_string[MAXREGPATHLENGTH - 1] = '\0';
-			/* Update the Driver Object List */
-			*dev_node_strg = (u32) pszdev_node->sz_string;
-			list_add_tail(&pszdev_node->link,
-					&pdrv_object->dev_node_string);
-		} else {
-			status = -ENOMEM;
-			*dev_node_strg = 0;
-		}
-	} else {
-		dev_dbg(bridge, "%s: Failed to get Driver Object from Registry",
-			__func__);
-		*dev_node_strg = 0;
-	}
-
-	return status;
-}
-
-/*
- *  ======== drv_release_resources ========
- *  Purpose:
- *      Releases  resources from the OS.
- */
-int drv_release_resources(u32 dw_context, struct drv_object *hdrv_obj)
-{
-	int status = 0;
-	struct drv_ext *pszdev_node;
-
-	/*
-	 *  Irrespective of the status go ahead and clean it
-	 *  The following will over write the status.
-	 */
-	for (pszdev_node = (struct drv_ext *)drv_get_first_dev_extension();
-	     pszdev_node != NULL; pszdev_node = (struct drv_ext *)
-	     drv_get_next_dev_extension((u32) pszdev_node)) {
-		if ((u32) pszdev_node == dw_context) {
-			/* Found it */
-			/* Delete from the Driver object list */
-			list_del(&pszdev_node->link);
-			kfree(pszdev_node);
-			break;
-		}
-	}
-	return status;
-}
-
-/*
- *  ======== request_bridge_resources ========
- *  Purpose:
- *      Reserves shared memory for bridge.
- */
-static int request_bridge_resources(struct cfg_hostres *res)
-{
-	struct cfg_hostres *host_res = res;
-
-	/* num_mem_windows must not be more than CFG_MAXMEMREGISTERS */
-	host_res->num_mem_windows = 2;
-
-	/* First window is for DSP internal memory */
-	dev_dbg(bridge, "mem_base[0] 0x%x\n", host_res->mem_base[0]);
-	dev_dbg(bridge, "mem_base[3] 0x%x\n", host_res->mem_base[3]);
-	dev_dbg(bridge, "dmmu_base %p\n", host_res->dmmu_base);
-
-	/* for 24xx base port is not mapping the mamory for DSP
-	 * internal memory TODO Do a ioremap here */
-	/* Second window is for DSP external memory shared with MPU */
-
-	/* These are hard-coded values */
-	host_res->birq_registers = 0;
-	host_res->birq_attrib = 0;
-	host_res->offset_for_monitor = 0;
-	host_res->chnl_offset = 0;
-	/* CHNL_MAXCHANNELS */
-	host_res->num_chnls = CHNL_MAXCHANNELS;
-	host_res->chnl_buf_size = 0x400;
-
-	return 0;
-}
-
-/*
- *  ======== drv_request_bridge_res_dsp ========
- *  Purpose:
- *      Reserves shared memory for bridge.
- */
-int drv_request_bridge_res_dsp(void **phost_resources)
-{
-	int status = 0;
-	struct cfg_hostres *host_res;
-	u32 dw_buff_size;
-	u32 dma_addr;
-	u32 shm_size;
-	struct drv_data *drv_datap = dev_get_drvdata(bridge);
-
-	dw_buff_size = sizeof(struct cfg_hostres);
-
-	host_res = kzalloc(dw_buff_size, GFP_KERNEL);
-
-	if (host_res != NULL) {
-		request_bridge_resources(host_res);
-		/* num_mem_windows must not be more than CFG_MAXMEMREGISTERS */
-		host_res->num_mem_windows = 4;
-
-		host_res->mem_base[0] = 0;
-		host_res->mem_base[2] = (u32) ioremap(OMAP_DSP_MEM1_BASE,
-							 OMAP_DSP_MEM1_SIZE);
-		host_res->mem_base[3] = (u32) ioremap(OMAP_DSP_MEM2_BASE,
-							 OMAP_DSP_MEM2_SIZE);
-		host_res->mem_base[4] = (u32) ioremap(OMAP_DSP_MEM3_BASE,
-							 OMAP_DSP_MEM3_SIZE);
-		host_res->per_base = ioremap(OMAP_PER_CM_BASE,
-						OMAP_PER_CM_SIZE);
-		host_res->per_pm_base = ioremap(OMAP_PER_PRM_BASE,
-						OMAP_PER_PRM_SIZE);
-		host_res->core_pm_base = ioremap(OMAP_CORE_PRM_BASE,
-							OMAP_CORE_PRM_SIZE);
-		host_res->dmmu_base = ioremap(OMAP_DMMU_BASE,
-						 OMAP_DMMU_SIZE);
-
-		dev_dbg(bridge, "mem_base[0] 0x%x\n",
-			host_res->mem_base[0]);
-		dev_dbg(bridge, "mem_base[1] 0x%x\n",
-			host_res->mem_base[1]);
-		dev_dbg(bridge, "mem_base[2] 0x%x\n",
-			host_res->mem_base[2]);
-		dev_dbg(bridge, "mem_base[3] 0x%x\n",
-			host_res->mem_base[3]);
-		dev_dbg(bridge, "mem_base[4] 0x%x\n",
-			host_res->mem_base[4]);
-		dev_dbg(bridge, "dmmu_base %p\n", host_res->dmmu_base);
-
-		shm_size = drv_datap->shm_size;
-		if (shm_size >= 0x10000) {
-			/* Allocate Physically contiguous,
-			 * non-cacheable  memory */
-			host_res->mem_base[1] =
-			    (u32) mem_alloc_phys_mem(shm_size, 0x100000,
-						     &dma_addr);
-			if (host_res->mem_base[1] == 0) {
-				status = -ENOMEM;
-				pr_err("shm reservation Failed\n");
-			} else {
-				host_res->mem_length[1] = shm_size;
-				host_res->mem_phys[1] = dma_addr;
-
-				dev_dbg(bridge, "%s: Bridge shm address 0x%x "
-					"dma_addr %x size %x\n", __func__,
-					host_res->mem_base[1],
-					dma_addr, shm_size);
-			}
-		}
-		if (!status) {
-			/* These are hard-coded values */
-			host_res->birq_registers = 0;
-			host_res->birq_attrib = 0;
-			host_res->offset_for_monitor = 0;
-			host_res->chnl_offset = 0;
-			/* CHNL_MAXCHANNELS */
-			host_res->num_chnls = CHNL_MAXCHANNELS;
-			host_res->chnl_buf_size = 0x400;
-			dw_buff_size = sizeof(struct cfg_hostres);
-		}
-		*phost_resources = host_res;
-	}
-	/* End Mem alloc */
-	return status;
-}
-
-void mem_ext_phys_pool_init(u32 pool_phys_base, u32 pool_size)
-{
-	u32 pool_virt_base;
-
-	/* get the virtual address for the physical memory pool passed */
-	pool_virt_base = (u32) ioremap(pool_phys_base, pool_size);
-
-	if ((void **)pool_virt_base == NULL) {
-		pr_err("%s: external physical memory map failed\n", __func__);
-		ext_phys_mem_pool_enabled = false;
-	} else {
-		ext_mem_pool.phys_mem_base = pool_phys_base;
-		ext_mem_pool.phys_mem_size = pool_size;
-		ext_mem_pool.virt_mem_base = pool_virt_base;
-		ext_mem_pool.next_phys_alloc_ptr = pool_phys_base;
-		ext_phys_mem_pool_enabled = true;
-	}
-}
-
-void mem_ext_phys_pool_release(void)
-{
-	if (ext_phys_mem_pool_enabled) {
-		iounmap((void *)(ext_mem_pool.virt_mem_base));
-		ext_phys_mem_pool_enabled = false;
-	}
-}
-
-/*
- *  ======== mem_ext_phys_mem_alloc ========
- *  Purpose:
- *     Allocate physically contiguous, uncached memory from external memory pool
- */
-
-static void *mem_ext_phys_mem_alloc(u32 bytes, u32 align, u32 *phys_addr)
-{
-	u32 new_alloc_ptr;
-	u32 offset;
-	u32 virt_addr;
-
-	if (align == 0)
-		align = 1;
-
-	if (bytes > ((ext_mem_pool.phys_mem_base + ext_mem_pool.phys_mem_size)
-		     - ext_mem_pool.next_phys_alloc_ptr)) {
-		phys_addr = NULL;
-		return NULL;
-	} else {
-		offset = (ext_mem_pool.next_phys_alloc_ptr & (align - 1));
-		if (offset == 0)
-			new_alloc_ptr = ext_mem_pool.next_phys_alloc_ptr;
-		else
-			new_alloc_ptr = (ext_mem_pool.next_phys_alloc_ptr) +
-			    (align - offset);
-		if ((new_alloc_ptr + bytes) <=
-		    (ext_mem_pool.phys_mem_base + ext_mem_pool.phys_mem_size)) {
-			/* we can allocate */
-			*phys_addr = new_alloc_ptr;
-			ext_mem_pool.next_phys_alloc_ptr =
-			    new_alloc_ptr + bytes;
-			virt_addr =
-			    ext_mem_pool.virt_mem_base + (new_alloc_ptr -
-							  ext_mem_pool.
-							  phys_mem_base);
-			return (void *)virt_addr;
-		} else {
-			*phys_addr = 0;
-			return NULL;
-		}
-	}
-}
-
-/*
- *  ======== mem_alloc_phys_mem ========
- *  Purpose:
- *      Allocate physically contiguous, uncached memory
- */
-void *mem_alloc_phys_mem(u32 byte_size, u32 align_mask,
-				u32 *physical_address)
-{
-	void *va_mem = NULL;
-	dma_addr_t pa_mem;
-
-	if (byte_size > 0) {
-		if (ext_phys_mem_pool_enabled) {
-			va_mem = mem_ext_phys_mem_alloc(byte_size, align_mask,
-							(u32 *) &pa_mem);
-		} else
-			va_mem = dma_alloc_coherent(NULL, byte_size, &pa_mem,
-								GFP_KERNEL);
-		if (va_mem == NULL)
-			*physical_address = 0;
-		else
-			*physical_address = pa_mem;
-	}
-	return va_mem;
-}
-
-/*
- *  ======== mem_free_phys_mem ========
- *  Purpose:
- *      Free the given block of physically contiguous memory.
- */
-void mem_free_phys_mem(void *virtual_address, u32 physical_address,
-		       u32 byte_size)
-{
-	if (!ext_phys_mem_pool_enabled)
-		dma_free_coherent(NULL, byte_size, virtual_address,
-				  physical_address);
-}