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, 468 deletions

diff --git a/drivers/staging/tidspbridge/include/dspbridge/drv.h b/drivers/staging/tidspbridge/include/dspbridge/drv.h
deleted file mode 100644
index b0c7708321b2..000000000000
--- a/drivers/staging/tidspbridge/include/dspbridge/drv.h
+++ /dev/null
@@ -1,468 +0,0 @@
-/*
- * drv.h
- *
- * DSP-BIOS Bridge driver support functions for TI OMAP processors.
- *
- * DRV Resource allocation module. Driver Object gets Created
- * at the time of Loading. It holds the List of Device Objects
- * in the system.
- *
- * 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.
- */
-
-#ifndef DRV_
-#define DRV_
-
-#include <dspbridge/devdefs.h>
-
-#include <linux/idr.h>
-
-/* Bridge Driver Object */
-struct drv_object;
-
-/* Provide the DSP Internal memory windows that can be accessed from L3 address
- * space */
-
-#define OMAP_GEM_BASE   0x107F8000
-#define OMAP_DSP_SIZE   0x00720000
-
-/* MEM1 is L2 RAM + L2 Cache space */
-#define OMAP_DSP_MEM1_BASE 0x5C7F8000
-#define OMAP_DSP_MEM1_SIZE 0x18000
-
-/* MEM2 is L1P RAM/CACHE space */
-#define OMAP_DSP_MEM2_BASE 0x5CE00000
-#define OMAP_DSP_MEM2_SIZE 0x8000
-
-/* MEM3 is L1D RAM/CACHE space */
-#define OMAP_DSP_MEM3_BASE 0x5CF04000
-#define OMAP_DSP_MEM3_SIZE 0x14000
-
-#define OMAP_PER_CM_BASE 0x48005000
-#define OMAP_PER_CM_SIZE 0x1000
-
-#define OMAP_PER_PRM_BASE 0x48307000
-#define OMAP_PER_PRM_SIZE 0x1000
-
-#define OMAP_CORE_PRM_BASE 0x48306A00
-#define OMAP_CORE_PRM_SIZE 0x1000
-
-#define OMAP_DMMU_BASE 0x5D000000
-#define OMAP_DMMU_SIZE 0x1000
-
-/* GPP PROCESS CLEANUP Data structures */
-
-/* New structure (member of process context) abstracts NODE resource info */
-struct node_res_object {
-	void *node;
-	s32 node_allocated;	/* Node status */
-	s32 heap_allocated;	/* Heap status */
-	s32 streams_allocated;	/* Streams status */
-	int id;
-};
-
-/* used to cache dma mapping information */
-struct bridge_dma_map_info {
-	/* direction of DMA in action, or DMA_NONE */
-	enum dma_data_direction dir;
-	/* number of elements requested by us */
-	int num_pages;
-	/* number of elements returned from dma_map_sg */
-	int sg_num;
-	/* list of buffers used in this DMA action */
-	struct scatterlist *sg;
-};
-
-/* Used for DMM mapped memory accounting */
-struct dmm_map_object {
-	struct list_head link;
-	u32 dsp_addr;
-	u32 mpu_addr;
-	u32 size;
-	u32 num_usr_pgs;
-	struct page **pages;
-	struct bridge_dma_map_info dma_info;
-};
-
-/* Used for DMM reserved memory accounting */
-struct dmm_rsv_object {
-	struct list_head link;
-	u32 dsp_reserved_addr;
-};
-
-/* New structure (member of process context) abstracts stream resource info */
-struct strm_res_object {
-	s32 stream_allocated;	/* Stream status */
-	void *stream;
-	u32 num_bufs;
-	u32 dir;
-	int id;
-};
-
-/* Overall Bridge process resource usage state */
-enum gpp_proc_res_state {
-	PROC_RES_ALLOCATED,
-	PROC_RES_FREED
-};
-
-/* Bridge Data */
-struct drv_data {
-	char *base_img;
-	s32 shm_size;
-	int tc_wordswapon;
-	void *drv_object;
-	void *dev_object;
-	void *mgr_object;
-};
-
-/* Process Context */
-struct process_context {
-	/* Process State */
-	enum gpp_proc_res_state res_state;
-
-	/* Handle to Processor */
-	void *processor;
-
-	/* DSP Node resources */
-	struct idr *node_id;
-
-	/* DMM mapped memory resources */
-	struct list_head dmm_map_list;
-	spinlock_t dmm_map_lock;
-
-	/* DMM reserved memory resources */
-	struct list_head dmm_rsv_list;
-	spinlock_t dmm_rsv_lock;
-
-	/* Stream resources */
-	struct idr *stream_id;
-};
-
-/*
- *  ======== drv_create ========
- *  Purpose:
- *      Creates the Driver Object. This is done during the driver loading.
- *      There is only one Driver Object in the DSP/BIOS Bridge.
- *  Parameters:
- *      drv_obj:        Location to store created DRV Object handle.
- *  Returns:
- *      0:        Success
- *      -ENOMEM:    Failed in Memory allocation
- *      -EPERM:      General Failure
- *  Requires:
- *      DRV Initialized (refs > 0 )
- *      drv_obj != NULL.
- *  Ensures:
- *      0:        - *drv_obj is a valid DRV interface to the device.
- *                      - List of DevObject Created and Initialized.
- *                      - List of dev_node String created and initialized.
- *                      - Registry is updated with the DRV Object.
- *      !0:       DRV Object not created
- *  Details:
- *      There is one Driver Object for the Driver representing
- *      the driver itself. It contains the list of device
- *      Objects and the list of Device Extensions in the system.
- *      Also it can hold other necessary
- *      information in its storage area.
- */
-extern int drv_create(struct drv_object **drv_obj);
-
-/*
- *  ======== drv_destroy ========
- *  Purpose:
- *      destroys the Dev Object list, DrvExt list
- *      and destroy the DRV object
- *      Called upon driver unLoading.or unsuccessful loading of the driver.
- *  Parameters:
- *      driver_obj:     Handle to Driver object .
- *  Returns:
- *      0:        Success.
- *      -EPERM:      Failed to destroy DRV Object
- *  Requires:
- *      DRV Initialized (cRegs > 0 )
- *      hdrv_obj is not NULL and a valid DRV handle .
- *      List of DevObject is Empty.
- *      List of DrvExt is Empty
- *  Ensures:
- *      0:        - DRV Object destroyed and hdrv_obj is not a valid
- *                        DRV handle.
- *                      - Registry is updated with "0" as the DRV Object.
- */
-extern int drv_destroy(struct drv_object *driver_obj);
-
-/*
- *  ======== drv_get_first_dev_object ========
- *  Purpose:
- *      Returns the Ptr to the FirstDev Object in the List
- *  Parameters:
- *  Requires:
- *      DRV Initialized
- *  Returns:
- *      dw_dev_object:  Ptr to the First Dev Object as a u32
- *      0 if it fails to retrieve the First Dev Object
- *  Ensures:
- */
-extern u32 drv_get_first_dev_object(void);
-
-/*
- *  ======== drv_get_first_dev_extension ========
- *  Purpose:
- *      Returns the Ptr to the First Device Extension in the List
- *  Parameters:
- *  Requires:
- *      DRV Initialized
- *  Returns:
- *      dw_dev_extension:     Ptr to the First Device Extension as a u32
- *      0:                  Failed to Get the Device Extension
- *  Ensures:
- */
-extern u32 drv_get_first_dev_extension(void);
-
-/*
- *  ======== drv_get_dev_object ========
- *  Purpose:
- *      Given a index, returns a handle to DevObject from the list
- *  Parameters:
- *      hdrv_obj:     Handle to the Manager
- *      device_obj:     Location to store the Dev Handle
- *  Requires:
- *      DRV Initialized
- *      index >= 0
- *      hdrv_obj is not NULL and Valid DRV Object
- *      device_obj is not NULL
- *      Device Object List not Empty
- *  Returns:
- *      0:        Success
- *      -EPERM:      Failed to Get the Dev Object
- *  Ensures:
- *      0:        *device_obj != NULL
- *      -EPERM:      *device_obj = NULL
- */
-extern int drv_get_dev_object(u32 index,
-				     struct drv_object *hdrv_obj,
-				     struct dev_object **device_obj);
-
-/*
- *  ======== drv_get_next_dev_object ========
- *  Purpose:
- *      Returns the Ptr to the Next Device Object from the the List
- *  Parameters:
- *      hdev_obj:     Handle to the Device Object
- *  Requires:
- *      DRV Initialized
- *      hdev_obj != 0
- *  Returns:
- *      dw_dev_object:    Ptr to the Next Dev Object as a u32
- *      0:              If it fail to get the next Dev Object.
- *  Ensures:
- */
-extern u32 drv_get_next_dev_object(u32 hdev_obj);
-
-/*
- *  ======== drv_get_next_dev_extension ========
- *  Purpose:
- *      Returns the Ptr to the Next Device Extension from the the List
- *  Parameters:
- *      dev_extension:      Handle to the Device Extension
- *  Requires:
- *      DRV Initialized
- *      dev_extension != 0.
- *  Returns:
- *      dw_dev_extension:     Ptr to the Next Dev Extension
- *      0:                  If it fail to Get the next Dev Extension
- *  Ensures:
- */
-extern u32 drv_get_next_dev_extension(u32 dev_extension);
-
-/*
- *  ======== drv_insert_dev_object ========
- *  Purpose:
- *      Insert a DeviceObject into the list of Driver object.
- *  Parameters:
- *      driver_obj:     Handle to DrvObject
- *      hdev_obj:     Handle to DeviceObject to insert.
- *  Returns:
- *      0:        If successful.
- *      -EPERM:      General Failure:
- *  Requires:
- *      hdrv_obj != NULL and Valid DRV Handle.
- *      hdev_obj != NULL.
- *  Ensures:
- *      0:        Device Object is inserted and the List is not empty.
- */
-extern int drv_insert_dev_object(struct drv_object *driver_obj,
-					struct dev_object *hdev_obj);
-
-/*
- *  ======== drv_remove_dev_object ========
- *  Purpose:
- *      Search for and remove a Device object from the given list of Device Obj
- *      objects.
- *  Parameters:
- *      driver_obj:     Handle to DrvObject
- *      hdev_obj:     Handle to DevObject to Remove
- *  Returns:
- *      0:        Success.
- *      -EPERM:      Unable to find dev_obj.
- *  Requires:
- *      hdrv_obj != NULL and a Valid DRV Handle.
- *      hdev_obj != NULL.
- *      List exists and is not empty.
- *  Ensures:
- *      List either does not exist (NULL), or is not empty if it does exist.
- */
-extern int drv_remove_dev_object(struct drv_object *driver_obj,
-					struct dev_object *hdev_obj);
-
-/*
- *  ======== drv_request_resources ========
- *  Purpose:
- *      Assigns the Resources or Releases them.
- *  Parameters:
- *      dw_context:          Path to the driver Registry Key.
- *      dev_node_strg:     Ptr to dev_node String stored in the Device Ext.
- *  Returns:
- *      TRUE if success; FALSE otherwise.
- *  Requires:
- *  Ensures:
- *      The Resources are assigned based on Bus type.
- *      The hardware is initialized. Resource information is
- *      gathered from the Registry(ISA, PCMCIA)or scanned(PCI)
- *      Resource structure is stored in the registry which will be
- *      later used by the CFG module.
- */
-extern int drv_request_resources(u32 dw_context,
-					u32 *dev_node_strg);
-
-/*
- *  ======== drv_release_resources ========
- *  Purpose:
- *      Assigns the Resources or Releases them.
- *  Parameters:
- *      dw_context:      Path to the driver Registry Key.
- *      hdrv_obj:     Handle to the Driver Object.
- *  Returns:
- *      TRUE if success; FALSE otherwise.
- *  Requires:
- *  Ensures:
- *      The Resources are released based on Bus type.
- *      Resource structure is deleted from the registry
- */
-extern int drv_release_resources(u32 dw_context,
-					struct drv_object *hdrv_obj);
-
-/**
- * drv_request_bridge_res_dsp() - Reserves shared memory for bridge.
- * @phost_resources:  pointer to host resources.
- */
-int drv_request_bridge_res_dsp(void **phost_resources);
-
-#ifdef CONFIG_TIDSPBRIDGE_RECOVERY
-void bridge_recover_schedule(void);
-#endif
-
-/*
- *  ======== mem_ext_phys_pool_init ========
- *  Purpose:
- *      Uses the physical memory chunk passed for internal consistent memory
- *      allocations.
- *      physical address based on the page frame address.
- *  Parameters:
- *      pool_phys_base  starting address of the physical memory pool.
- *      pool_size      size of the physical memory pool.
- *  Returns:
- *      none.
- *  Requires:
- *      - MEM initialized.
- *      - valid physical address for the base and size > 0
- */
-extern void mem_ext_phys_pool_init(u32 pool_phys_base, u32 pool_size);
-
-/*
- *  ======== mem_ext_phys_pool_release ========
- */
-extern void mem_ext_phys_pool_release(void);
-
-/*  ======== mem_alloc_phys_mem ========
- *  Purpose:
- *      Allocate physically contiguous, uncached memory
- *  Parameters:
- *      byte_size:     Number of bytes to allocate.
- *      align_mask:    Alignment Mask.
- *      physical_address: Physical address of allocated memory.
- *  Returns:
- *      Pointer to a block of memory;
- *      NULL if memory couldn't be allocated, or if byte_size == 0.
- *  Requires:
- *      MEM initialized.
- *  Ensures:
- *      The returned pointer, if not NULL, points to a valid memory block of
- *      the size requested.  Returned physical address refers to physical
- *      location of memory.
- */
-extern void *mem_alloc_phys_mem(u32 byte_size,
-				u32 align_mask, u32 *physical_address);
-
-/*
- *  ======== mem_free_phys_mem ========
- *  Purpose:
- *      Free the given block of physically contiguous memory.
- *  Parameters:
- *      virtual_address:  Pointer to virtual memory region allocated
- *      by mem_alloc_phys_mem().
- *      physical_address:  Pointer to physical memory region  allocated
- *      by mem_alloc_phys_mem().
- *      byte_size:  Size of the memory region allocated by mem_alloc_phys_mem().
- *  Returns:
- *  Requires:
- *      MEM initialized.
- *      virtual_address is a valid memory address returned by
- *          mem_alloc_phys_mem()
- *  Ensures:
- *      virtual_address is no longer a valid pointer to memory.
- */
-extern void mem_free_phys_mem(void *virtual_address,
-			      u32 physical_address, u32 byte_size);
-
-/*
- *  ======== MEM_LINEAR_ADDRESS ========
- *  Purpose:
- *      Get the linear address corresponding to the given physical address.
- *  Parameters:
- *      phys_addr:  Physical address to be mapped.
- *      byte_size:     Number of bytes in physical range to map.
- *  Returns:
- *      The corresponding linear address, or NULL if unsuccessful.
- *  Requires:
- *      MEM initialized.
- *  Ensures:
- *  Notes:
- *      If valid linear address is returned, be sure to call
- *      MEM_UNMAP_LINEAR_ADDRESS().
- */
-#define MEM_LINEAR_ADDRESS(phy_addr, byte_size) phy_addr
-
-/*
- *  ======== MEM_UNMAP_LINEAR_ADDRESS ========
- *  Purpose:
- *      Unmap the linear address mapped in MEM_LINEAR_ADDRESS.
- *  Parameters:
- *      base_addr: Ptr to mapped memory (as returned by MEM_LINEAR_ADDRESS()).
- *  Returns:
- *  Requires:
- *      - MEM initialized.
- *      - base_addr is a valid linear address mapped in MEM_LINEAR_ADDRESS.
- *  Ensures:
- *      - base_addr no longer points to a valid linear address.
- */
-#define MEM_UNMAP_LINEAR_ADDRESS(base_addr) {}
-
-#endif /* DRV_ */