diff options
Diffstat (limited to 'drivers/staging/tidspbridge/include/dspbridge/drv.h')
| -rw-r--r-- | drivers/staging/tidspbridge/include/dspbridge/drv.h | 521 |
1 files changed, 521 insertions, 0 deletions
diff --git a/drivers/staging/tidspbridge/include/dspbridge/drv.h b/drivers/staging/tidspbridge/include/dspbridge/drv.h new file mode 100644 index 000000000000..f3650153ef35 --- /dev/null +++ b/drivers/staging/tidspbridge/include/dspbridge/drv.h @@ -0,0 +1,521 @@ +/* + * 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 <dspbridge/drvdefs.h> +#include <linux/idr.h> + +#define DRV_ASSIGN 1 +#define DRV_RELEASE 0 + +/* 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 +#define OMAP_DSP_GEM1_BASE 0x107F8000 + +/* MEM2 is L1P RAM/CACHE space */ +#define OMAP_DSP_MEM2_BASE 0x5CE00000 +#define OMAP_DSP_MEM2_SIZE 0x8000 +#define OMAP_DSP_GEM2_BASE 0x10E00000 + +/* MEM3 is L1D RAM/CACHE space */ +#define OMAP_DSP_MEM3_BASE 0x5CF04000 +#define OMAP_DSP_MEM3_SIZE 0x14000 +#define OMAP_DSP_GEM3_BASE 0x10F04000 + +#define OMAP_IVA2_PRM_BASE 0x48306000 +#define OMAP_IVA2_PRM_SIZE 0x1000 + +#define OMAP_IVA2_CM_BASE 0x48004000 +#define OMAP_IVA2_CM_SIZE 0x1000 + +#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_SYSC_BASE 0x48002000 +#define OMAP_SYSC_SIZE 0x1000 + +#define OMAP_DMMU_BASE 0x5D000000 +#define OMAP_DMMU_SIZE 0x1000 + +#define OMAP_PRCM_VDD1_DOMAIN 1 +#define OMAP_PRCM_VDD2_DOMAIN 2 + +/* GPP PROCESS CLEANUP Data structures */ + +/* New structure (member of process context) abstracts NODE resource info */ +struct node_res_object { + void *hnode; + 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 DMM resource info */ +struct dspheap_res_object { + s32 heap_allocated; /* DMM status */ + u32 ul_mpu_addr; + u32 ul_dsp_addr; + u32 ul_dsp_res_addr; + u32 heap_size; + void *hprocessor; + struct dspheap_res_object *next; +}; + +/* New structure (member of process context) abstracts stream resource info */ +struct strm_res_object { + s32 stream_allocated; /* Stream status */ + void *hstream; + 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 *hprocessor; + + /* 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; + + /* DSP Heap resources */ + struct dspheap_res_object *pdspheap_list; + + /* 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: Sucess + * -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 intialized. + * - 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 neccessary + * 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 unsuccesful 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_exit ======== + * Purpose: + * Exit the DRV module, freeing any modules initialized in drv_init. + * Parameters: + * Returns: + * Requires: + * Ensures: + */ +extern void drv_exit(void); + +/* + * ======== 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_init ======== + * Purpose: + * Initialize the DRV module. + * Parameters: + * Returns: + * TRUE if success; FALSE otherwise. + * Requires: + * Ensures: + */ +extern int drv_init(void); + +/* + * ======== 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 consitent 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_ */ |