diff options
| -rw-r--r-- | drivers/staging/tidspbridge/Makefile | 2 | ||||
| -rw-r--r-- | drivers/staging/tidspbridge/core/tiomap3430.c | 1 | ||||
| -rw-r--r-- | drivers/staging/tidspbridge/include/dspbridge/dev.h | 24 | ||||
| -rw-r--r-- | drivers/staging/tidspbridge/include/dspbridge/dmm.h | 75 | ||||
| -rw-r--r-- | drivers/staging/tidspbridge/include/dspbridge/drv.h | 6 | ||||
| -rw-r--r-- | drivers/staging/tidspbridge/pmgr/dev.c | 61 | ||||
| -rw-r--r-- | drivers/staging/tidspbridge/pmgr/dmm.c | 533 | ||||
| -rw-r--r-- | drivers/staging/tidspbridge/rmgr/node.c | 28 | ||||
| -rw-r--r-- | drivers/staging/tidspbridge/rmgr/proc.c | 23 |
9 files changed, 747 insertions, 6 deletions
diff --git a/drivers/staging/tidspbridge/Makefile b/drivers/staging/tidspbridge/Makefile index 50decc2..37bd3bc 100644 --- a/drivers/staging/tidspbridge/Makefile +++ b/drivers/staging/tidspbridge/Makefile @@ -5,7 +5,7 @@ libcore = core/chnl_sm.o core/msg_sm.o core/io_sm.o core/tiomap3430.o \ core/tiomap3430_pwr.o core/tiomap_io.o core/dsp-mmu.o \ core/ue_deh.o core/wdt.o core/dsp-clock.o core/sync.o libpmgr = pmgr/chnl.o pmgr/io.o pmgr/msg.o pmgr/cod.o pmgr/dev.o pmgr/dspapi.o \ - pmgr/cmm.o pmgr/dbll.o + pmgr/dmm.o pmgr/cmm.o pmgr/dbll.o librmgr = rmgr/dbdcd.o rmgr/disp.o rmgr/drv.o rmgr/mgr.o rmgr/node.o \ rmgr/proc.o rmgr/pwr.o rmgr/rmm.o rmgr/strm.o rmgr/dspdrv.o \ rmgr/nldr.o rmgr/drv_interface.o diff --git a/drivers/staging/tidspbridge/core/tiomap3430.c b/drivers/staging/tidspbridge/core/tiomap3430.c index d302e30..1425c50 100644 --- a/drivers/staging/tidspbridge/core/tiomap3430.c +++ b/drivers/staging/tidspbridge/core/tiomap3430.c @@ -46,6 +46,7 @@ /* ----------------------------------- Platform Manager */ #include <dspbridge/dev.h> #include <dspbridge/dspapi.h> +#include <dspbridge/dmm.h> #include <dspbridge/wdt.h> /* ----------------------------------- Local */ diff --git a/drivers/staging/tidspbridge/include/dspbridge/dev.h b/drivers/staging/tidspbridge/include/dspbridge/dev.h index 9bdd48f..357458f 100644 --- a/drivers/staging/tidspbridge/include/dspbridge/dev.h +++ b/drivers/staging/tidspbridge/include/dspbridge/dev.h @@ -27,6 +27,7 @@ #include <dspbridge/nodedefs.h> #include <dspbridge/dispdefs.h> #include <dspbridge/dspdefs.h> +#include <dspbridge/dmm.h> #include <dspbridge/host_os.h> /* ----------------------------------- This */ @@ -233,6 +234,29 @@ extern int dev_get_cmm_mgr(struct dev_object *hdev_obj, struct cmm_object **mgr); /* + * ======== dev_get_dmm_mgr ======== + * Purpose: + * Retrieve the handle to the dynamic memory manager created for this + * device. + * Parameters: + * hdev_obj: Handle to device object created with + * dev_create_device(). + * *mgr: Ptr to location to store handle. + * Returns: + * 0: Success. + * -EFAULT: Invalid hdev_obj. + * Requires: + * mgr != NULL. + * DEV Initialized. + * Ensures: + * 0: *mgr contains a handle to a channel manager object, + * or NULL. + * else: *mgr is NULL. + */ +extern int dev_get_dmm_mgr(struct dev_object *hdev_obj, + struct dmm_object **mgr); + +/* * ======== dev_get_cod_mgr ======== * Purpose: * Retrieve the COD manager create for this device. diff --git a/drivers/staging/tidspbridge/include/dspbridge/dmm.h b/drivers/staging/tidspbridge/include/dspbridge/dmm.h new file mode 100644 index 0000000..6c58335 --- /dev/null +++ b/drivers/staging/tidspbridge/include/dspbridge/dmm.h @@ -0,0 +1,75 @@ +/* + * dmm.h + * + * DSP-BIOS Bridge driver support functions for TI OMAP processors. + * + * The Dynamic Memory Mapping(DMM) module manages the DSP Virtual address + * space that can be directly mapped to any MPU buffer or memory region. + * + * 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 DMM_ +#define DMM_ + +#include <dspbridge/dbdefs.h> + +struct dmm_object; + +/* DMM attributes used in dmm_create() */ +struct dmm_mgrattrs { + u32 reserved; +}; + +#define DMMPOOLSIZE 0x4000000 + +/* + * ======== dmm_get_handle ======== + * Purpose: + * Return the dynamic memory manager object for this device. + * This is typically called from the client process. + */ + +extern int dmm_get_handle(void *hprocessor, + struct dmm_object **dmm_manager); + +extern int dmm_reserve_memory(struct dmm_object *dmm_mgr, + u32 size, u32 *prsv_addr); + +extern int dmm_un_reserve_memory(struct dmm_object *dmm_mgr, + u32 rsv_addr); + +extern int dmm_map_memory(struct dmm_object *dmm_mgr, u32 addr, + u32 size); + +extern int dmm_un_map_memory(struct dmm_object *dmm_mgr, + u32 addr, u32 *psize); + +extern int dmm_destroy(struct dmm_object *dmm_mgr); + +extern int dmm_delete_tables(struct dmm_object *dmm_mgr); + +extern int dmm_create(struct dmm_object **dmm_manager, + struct dev_object *hdev_obj, + const struct dmm_mgrattrs *mgr_attrts); + +extern bool dmm_init(void); + +extern void dmm_exit(void); + +extern int dmm_create_tables(struct dmm_object *dmm_mgr, + u32 addr, u32 size); + +#ifdef DSP_DMM_DEBUG +u32 dmm_mem_map_dump(struct dmm_object *dmm_mgr); +#endif + +#endif /* DMM_ */ diff --git a/drivers/staging/tidspbridge/include/dspbridge/drv.h b/drivers/staging/tidspbridge/include/dspbridge/drv.h index 75a2c9b..427f38b 100644 --- a/drivers/staging/tidspbridge/include/dspbridge/drv.h +++ b/drivers/staging/tidspbridge/include/dspbridge/drv.h @@ -108,6 +108,12 @@ struct dmm_map_object { 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 */ diff --git a/drivers/staging/tidspbridge/pmgr/dev.c b/drivers/staging/tidspbridge/pmgr/dev.c index 7b30267..e3c78fb 100644 --- a/drivers/staging/tidspbridge/pmgr/dev.c +++ b/drivers/staging/tidspbridge/pmgr/dev.c @@ -34,6 +34,7 @@ #include <dspbridge/cod.h> #include <dspbridge/drv.h> #include <dspbridge/proc.h> +#include <dspbridge/dmm.h> /* ----------------------------------- Resource Manager */ #include <dspbridge/mgr.h> @@ -74,6 +75,7 @@ struct dev_object { struct msg_mgr *hmsg_mgr; /* Message manager. */ struct io_mgr *hio_mgr; /* IO manager (CHNL, msg_ctrl) */ struct cmm_object *hcmm_mgr; /* SM memory manager. */ + struct dmm_object *dmm_mgr; /* Dynamic memory manager. */ struct ldr_module *module_obj; /* Bridge Module handle. */ u32 word_size; /* DSP word size: quick access. */ struct drv_object *hdrv_obj; /* Driver Object */ @@ -248,6 +250,9 @@ int dev_create_device(struct dev_object **device_obj, /* Instantiate the DEH module */ status = bridge_deh_create(&dev_obj->hdeh_mgr, dev_obj); } + /* Create DMM mgr . */ + status = dmm_create(&dev_obj->dmm_mgr, + (struct dev_object *)dev_obj, NULL); } /* Add the new DEV_Object to the global list: */ if (!status) { @@ -273,6 +278,8 @@ leave: kfree(dev_obj->proc_list); if (dev_obj->cod_mgr) cod_delete(dev_obj->cod_mgr); + if (dev_obj->dmm_mgr) + dmm_destroy(dev_obj->dmm_mgr); kfree(dev_obj); } @@ -382,6 +389,11 @@ int dev_destroy_device(struct dev_object *hdev_obj) dev_obj->hcmm_mgr = NULL; } + if (dev_obj->dmm_mgr) { + dmm_destroy(dev_obj->dmm_mgr); + dev_obj->dmm_mgr = NULL; + } + /* Call the driver's bridge_dev_destroy() function: */ /* Require of DevDestroy */ if (dev_obj->hbridge_context) { @@ -462,6 +474,32 @@ int dev_get_cmm_mgr(struct dev_object *hdev_obj, } /* + * ======== dev_get_dmm_mgr ======== + * Purpose: + * Retrieve the handle to the dynamic memory manager created for this + * device. + */ +int dev_get_dmm_mgr(struct dev_object *hdev_obj, + struct dmm_object **mgr) +{ + int status = 0; + struct dev_object *dev_obj = hdev_obj; + + DBC_REQUIRE(refs > 0); + DBC_REQUIRE(mgr != NULL); + + if (hdev_obj) { + *mgr = dev_obj->dmm_mgr; + } else { + *mgr = NULL; + status = -EFAULT; + } + + DBC_ENSURE(!status || (mgr != NULL && *mgr == NULL)); + return status; +} + +/* * ======== dev_get_cod_mgr ======== * Purpose: * Retrieve the COD manager create for this device. @@ -713,8 +751,10 @@ void dev_exit(void) refs--; - if (refs == 0) + if (refs == 0) { cmm_exit(); + dmm_exit(); + } DBC_ENSURE(refs >= 0); } @@ -726,12 +766,25 @@ void dev_exit(void) */ bool dev_init(void) { - bool ret = true; + bool cmm_ret, dmm_ret, ret = true; DBC_REQUIRE(refs >= 0); - if (refs == 0) - ret = cmm_init(); + if (refs == 0) { + cmm_ret = cmm_init(); + dmm_ret = dmm_init(); + + ret = cmm_ret && dmm_ret; + + if (!ret) { + if (cmm_ret) + cmm_exit(); + + if (dmm_ret) + dmm_exit(); + + } + } if (ret) refs++; diff --git a/drivers/staging/tidspbridge/pmgr/dmm.c b/drivers/staging/tidspbridge/pmgr/dmm.c new file mode 100644 index 0000000..8685233 --- /dev/null +++ b/drivers/staging/tidspbridge/pmgr/dmm.c @@ -0,0 +1,533 @@ +/* + * dmm.c + * + * DSP-BIOS Bridge driver support functions for TI OMAP processors. + * + * The Dynamic Memory Manager (DMM) module manages the DSP Virtual address + * space that can be directly mapped to any MPU buffer or memory region + * + * Notes: + * Region: Generic memory entitiy having a start address and a size + * Chunk: Reserved region + * + * 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> + +/* ----------------------------------- Host OS */ +#include <dspbridge/host_os.h> + +/* ----------------------------------- DSP/BIOS Bridge */ +#include <dspbridge/dbdefs.h> + +/* ----------------------------------- Trace & Debug */ +#include <dspbridge/dbc.h> + +/* ----------------------------------- OS Adaptation Layer */ +#include <dspbridge/sync.h> + +/* ----------------------------------- Platform Manager */ +#include <dspbridge/dev.h> +#include <dspbridge/proc.h> + +/* ----------------------------------- This */ +#include <dspbridge/dmm.h> + +/* ----------------------------------- Defines, Data Structures, Typedefs */ +#define DMM_ADDR_VIRTUAL(a) \ + (((struct map_page *)(a) - virtual_mapping_table) * PG_SIZE4K +\ + dyn_mem_map_beg) +#define DMM_ADDR_TO_INDEX(a) (((a) - dyn_mem_map_beg) / PG_SIZE4K) + +/* DMM Mgr */ +struct dmm_object { + /* Dmm Lock is used to serialize access mem manager for + * multi-threads. */ + spinlock_t dmm_lock; /* Lock to access dmm mgr */ +}; + +/* ----------------------------------- Globals */ +static u32 refs; /* module reference count */ +struct map_page { + u32 region_size:15; + u32 mapped_size:15; + u32 reserved:1; + u32 mapped:1; +}; + +/* Create the free list */ +static struct map_page *virtual_mapping_table; +static u32 free_region; /* The index of free region */ +static u32 free_size; +static u32 dyn_mem_map_beg; /* The Beginning of dynamic memory mapping */ +static u32 table_size; /* The size of virt and phys pages tables */ + +/* ----------------------------------- Function Prototypes */ +static struct map_page *get_region(u32 addr); +static struct map_page *get_free_region(u32 len); +static struct map_page *get_mapped_region(u32 addrs); + +/* ======== dmm_create_tables ======== + * Purpose: + * Create table to hold the information of physical address + * the buffer pages that is passed by the user, and the table + * to hold the information of the virtual memory that is reserved + * for DSP. + */ +int dmm_create_tables(struct dmm_object *dmm_mgr, u32 addr, u32 size) +{ + struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr; + int status = 0; + + status = dmm_delete_tables(dmm_obj); + if (!status) { + dyn_mem_map_beg = addr; + table_size = PG_ALIGN_HIGH(size, PG_SIZE4K) / PG_SIZE4K; + /* Create the free list */ + virtual_mapping_table = __vmalloc(table_size * + sizeof(struct map_page), GFP_KERNEL | + __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL); + if (virtual_mapping_table == NULL) + status = -ENOMEM; + else { + /* On successful allocation, + * all entries are zero ('free') */ + free_region = 0; + free_size = table_size * PG_SIZE4K; + virtual_mapping_table[0].region_size = table_size; + } + } + + if (status) + pr_err("%s: failure, status 0x%x\n", __func__, status); + + return status; +} + +/* + * ======== dmm_create ======== + * Purpose: + * Create a dynamic memory manager object. + */ +int dmm_create(struct dmm_object **dmm_manager, + struct dev_object *hdev_obj, + const struct dmm_mgrattrs *mgr_attrts) +{ + struct dmm_object *dmm_obj = NULL; + int status = 0; + DBC_REQUIRE(refs > 0); + DBC_REQUIRE(dmm_manager != NULL); + + *dmm_manager = NULL; + /* create, zero, and tag a cmm mgr object */ + dmm_obj = kzalloc(sizeof(struct dmm_object), GFP_KERNEL); + if (dmm_obj != NULL) { + spin_lock_init(&dmm_obj->dmm_lock); + *dmm_manager = dmm_obj; + } else { + status = -ENOMEM; + } + + return status; +} + +/* + * ======== dmm_destroy ======== + * Purpose: + * Release the communication memory manager resources. + */ +int dmm_destroy(struct dmm_object *dmm_mgr) +{ + struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr; + int status = 0; + + DBC_REQUIRE(refs > 0); + if (dmm_mgr) { + status = dmm_delete_tables(dmm_obj); + if (!status) + kfree(dmm_obj); + } else + status = -EFAULT; + + return status; +} + +/* + * ======== dmm_delete_tables ======== + * Purpose: + * Delete DMM Tables. + */ +int dmm_delete_tables(struct dmm_object *dmm_mgr) +{ + int status = 0; + + DBC_REQUIRE(refs > 0); + /* Delete all DMM tables */ + if (dmm_mgr) + vfree(virtual_mapping_table); + else + status = -EFAULT; + return status; +} + +/* + * ======== dmm_exit ======== + * Purpose: + * Discontinue usage of module; free resources when reference count + * reaches 0. + */ +void dmm_exit(void) +{ + DBC_REQUIRE(refs > 0); + + refs--; +} + +/* + * ======== dmm_get_handle ======== + * Purpose: + * Return the dynamic memory manager object for this device. + * This is typically called from the client process. + */ +int dmm_get_handle(void *hprocessor, struct dmm_object **dmm_manager) +{ + int status = 0; + struct dev_object *hdev_obj; + + DBC_REQUIRE(refs > 0); + DBC_REQUIRE(dmm_manager != NULL); + if (hprocessor != NULL) + status = proc_get_dev_object(hprocessor, &hdev_obj); + else + hdev_obj = dev_get_first(); /* default */ + + if (!status) + status = dev_get_dmm_mgr(hdev_obj, dmm_manager); + + return status; +} + +/* + * ======== dmm_init ======== + * Purpose: + * Initializes private state of DMM module. + */ +bool dmm_init(void) +{ + bool ret = true; + + DBC_REQUIRE(refs >= 0); + + if (ret) + refs++; + + DBC_ENSURE((ret && (refs > 0)) || (!ret && (refs >= 0))); + + virtual_mapping_table = NULL; + table_size = 0; + + return ret; +} + +/* + * ======== dmm_map_memory ======== + * Purpose: + * Add a mapping block to the reserved chunk. DMM assumes that this block + * will be mapped in the DSP/IVA's address space. DMM returns an error if a + * mapping overlaps another one. This function stores the info that will be + * required later while unmapping the block. + */ +int dmm_map_memory(struct dmm_object *dmm_mgr, u32 addr, u32 size) +{ + struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr; + struct map_page *chunk; + int status = 0; + + spin_lock(&dmm_obj->dmm_lock); + /* Find the Reserved memory chunk containing the DSP block to + * be mapped */ + chunk = (struct map_page *)get_region(addr); + if (chunk != NULL) { + /* Mark the region 'mapped', leave the 'reserved' info as-is */ + chunk->mapped = true; + chunk->mapped_size = (size / PG_SIZE4K); + } else + status = -ENOENT; + spin_unlock(&dmm_obj->dmm_lock); + + dev_dbg(bridge, "%s dmm_mgr %p, addr %x, size %x\n\tstatus %x, " + "chunk %p", __func__, dmm_mgr, addr, size, status, chunk); + + return status; +} + +/* + * ======== dmm_reserve_memory ======== + * Purpose: + * Reserve a chunk of virtually contiguous DSP/IVA address space. + */ +int dmm_reserve_memory(struct dmm_object *dmm_mgr, u32 size, + u32 *prsv_addr) +{ + int status = 0; + struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr; + struct map_page *node; + u32 rsv_addr = 0; + u32 rsv_size = 0; + + spin_lock(&dmm_obj->dmm_lock); + + /* Try to get a DSP chunk from the free list */ + node = get_free_region(size); + if (node != NULL) { + /* DSP chunk of given size is available. */ + rsv_addr = DMM_ADDR_VIRTUAL(node); + /* Calculate the number entries to use */ + rsv_size = size / PG_SIZE4K; + if (rsv_size < node->region_size) { + /* Mark remainder of free region */ + node[rsv_size].mapped = false; + node[rsv_size].reserved = false; + node[rsv_size].region_size = + node->region_size - rsv_size; + node[rsv_size].mapped_size = 0; + } + /* get_region will return first fit chunk. But we only use what + is requested. */ + node->mapped = false; + node->reserved = true; + node->region_size = rsv_size; + node->mapped_size = 0; + /* Return the chunk's starting address */ + *prsv_addr = rsv_addr; + } else + /*dSP chunk of given size is not available */ + status = -ENOMEM; + + spin_unlock(&dmm_obj->dmm_lock); + + dev_dbg(bridge, "%s dmm_mgr %p, size %x, prsv_addr %p\n\tstatus %x, " + "rsv_addr %x, rsv_size %x\n", __func__, dmm_mgr, size, + prsv_addr, status, rsv_addr, rsv_size); + + return status; +} + +/* + * ======== dmm_un_map_memory ======== + * Purpose: + * Remove the mapped block from the reserved chunk. + */ +int dmm_un_map_memory(struct dmm_object *dmm_mgr, u32 addr, u32 *psize) +{ + struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr; + struct map_page *chunk; + int status = 0; + + spin_lock(&dmm_obj->dmm_lock); + chunk = get_mapped_region(addr); + if (chunk == NULL) + status = -ENOENT; + + if (!status) { + /* Unmap the region */ + *psize = chunk->mapped_size * PG_SIZE4K; + chunk->mapped = false; + chunk->mapped_size = 0; + } + spin_unlock(&dmm_obj->dmm_lock); + + dev_dbg(bridge, "%s: dmm_mgr %p, addr %x, psize %p\n\tstatus %x, " + "chunk %p\n", __func__, dmm_mgr, addr, psize, status, chunk); + + return status; +} + +/* + * ======== dmm_un_reserve_memory ======== + * Purpose: + * Free a chunk of reserved DSP/IVA address space. + */ +int dmm_un_reserve_memory(struct dmm_object *dmm_mgr, u32 rsv_addr) +{ + struct dmm_object *dmm_obj = (struct dmm_object *)dmm_mgr; + struct map_page *chunk; + u32 i; + int status = 0; + u32 chunk_size; + + spin_lock(&dmm_obj->dmm_lock); + + /* Find the chunk containing the reserved address */ + chunk = get_mapped_region(rsv_addr); + if (chunk == NULL) + status = -ENOENT; + + if (!status) { + /* Free all the mapped pages for this reserved region */ + i = 0; + while (i < chunk->region_size) { + if (chunk[i].mapped) { + /* Remove mapping from the page tables. */ + chunk_size = chunk[i].mapped_size; + /* Clear the mapping flags */ + chunk[i].mapped = false; + chunk[i].mapped_size = 0; + i += chunk_size; + } else + i++; + } + /* Clear the flags (mark the region 'free') */ + chunk->reserved = false; + /* NOTE: We do NOT coalesce free regions here. + * Free regions are coalesced in get_region(), as it traverses + *the whole mapping table + */ + } + spin_unlock(&dmm_obj->dmm_lock); + + dev_dbg(bridge, "%s: dmm_mgr %p, rsv_addr %x\n\tstatus %x chunk %p", + __func__, dmm_mgr, rsv_addr, status, chunk); + + return status; +} + +/* + * ======== get_region ======== + * Purpose: + * Returns a region containing the specified memory region + */ +static struct map_page *get_region(u32 addr) +{ + struct map_page *curr_region = NULL; + u32 i = 0; + + if (virtual_mapping_table != NULL) { + /* find page mapped by this address */ + i = DMM_ADDR_TO_INDEX(addr); + if (i < table_size) + curr_region = virtual_mapping_table + i; + } + + dev_dbg(bridge, "%s: curr_region %p, free_region %d, free_size %d\n", + __func__, curr_region, free_region, free_size); + return curr_region; +} + +/* + * ======== get_free_region ======== + * Purpose: + * Returns the requested free region + */ +static struct map_page *get_free_region(u32 len) +{ + struct map_page *curr_region = NULL; + u32 i = 0; + u32 region_size = 0; + u32 next_i = 0; + + if (virtual_mapping_table == NULL) + return curr_region; + if (len > free_size) { + /* Find the largest free region + * (coalesce during the traversal) */ + while (i < table_size) { + region_size = virtual_mapping_table[i].region_size; + next_i = i + region_size; + if (virtual_mapping_table[i].reserved == false) { + /* Coalesce, if possible */ + if (next_i < table_size && + virtual_mapping_table[next_i].reserved + == false) { + virtual_mapping_table[i].region_size += + virtual_mapping_table + [next_i].region_size; + continue; + } + region_size *= PG_SIZE4K; + if (region_size > free_size) { + free_region = i; + free_size = region_size; + } + } + i = next_i; + } + } + if (len <= free_size) { + curr_region = virtual_mapping_table + free_region; + free_region += (len / PG_SIZE4K); + free_size -= len; + } + return curr_region; +} + +/* + * ======== get_mapped_region ======== + * Purpose: + * Returns the requestedmapped region + */ +static struct map_page *get_mapped_region(u32 addrs) +{ + u32 i = 0; + struct map_page *curr_region = NULL; + + if (virtual_mapping_table == NULL) + return curr_region; + + i = DMM_ADDR_TO_INDEX(addrs); + if (i < table_size && (virtual_mapping_table[i].mapped || + virtual_mapping_table[i].reserved)) + curr_region = virtual_mapping_table + i; + return curr_region; +} + +#ifdef DSP_DMM_DEBUG +u32 dmm_mem_map_dump(struct dmm_object *dmm_mgr) +{ + struct map_page *curr_node = NULL; + u32 i; + u32 freemem = 0; + u32 bigsize = 0; + + spin_lock(&dmm_mgr->dmm_lock); + + if (virtual_mapping_table != NULL) { + for (i = 0; i < table_size; i += + virtual_mapping_table[i].region_size) { + curr_node = virtual_mapping_table + i; + if (curr_node->reserved) { + /*printk("RESERVED size = 0x%x, " + "Map size = 0x%x\n", + (curr_node->region_size * PG_SIZE4K), + (curr_node->mapped == false) ? 0 : + (curr_node->mapped_size * PG_SIZE4K)); + */ + } else { +/* printk("UNRESERVED size = 0x%x\n", + (curr_node->region_size * PG_SIZE4K)); + */ + freemem += (curr_node->region_size * PG_SIZE4K); + if (curr_node->region_size > bigsize) + bigsize = curr_node->region_size; + } + } + } + spin_unlock(&dmm_mgr->dmm_lock); + printk(KERN_INFO "Total DSP VA FREE memory = %d Mbytes\n", + freemem / (1024 * 1024)); + printk(KERN_INFO "Total DSP VA USED memory= %d Mbytes \n", + (((table_size * PG_SIZE4K) - freemem)) / (1024 * 1024)); + printk(KERN_INFO "DSP VA - Biggest FREE block = %d Mbytes \n\n", + (bigsize * PG_SIZE4K / (1024 * 1024))); + + return 0; +} +#endif diff --git a/drivers/staging/tidspbridge/rmgr/node.c b/drivers/staging/tidspbridge/rmgr/node.c index a660247..ccb1811 100644 --- a/drivers/staging/tidspbridge/rmgr/node.c +++ b/drivers/staging/tidspbridge/rmgr/node.c @@ -56,6 +56,7 @@ /* ----------------------------------- This */ #include <dspbridge/nodepriv.h> #include <dspbridge/node.h> +#include <dspbridge/dmm.h> /* Static/Dynamic Loader includes */ #include <dspbridge/dbll.h> @@ -316,6 +317,10 @@ int node_allocate(struct proc_object *hprocessor, u32 mapped_addr = 0; u32 map_attrs = 0x0; struct dsp_processorstate proc_state; +#ifdef DSP_DMM_DEBUG + struct dmm_object *dmm_mgr; + struct proc_object *p_proc_object = (struct proc_object *)hprocessor; +#endif void *node_res; @@ -425,6 +430,16 @@ int node_allocate(struct proc_object *hprocessor, if (status) goto func_cont; +#ifdef DSP_DMM_DEBUG + status = dmm_get_handle(p_proc_object, &dmm_mgr); + if (!dmm_mgr) { + status = DSP_EHANDLE; + goto func_cont; + } + + dmm_mem_map_dump(dmm_mgr); +#endif + map_attrs |= DSP_MAPLITTLEENDIAN; map_attrs |= DSP_MAPELEMSIZE32; map_attrs |= DSP_MAPVIRTUALADDR; @@ -2484,7 +2499,11 @@ static void delete_node(struct node_object *hnode, struct stream_chnl stream; struct node_msgargs node_msg_args; struct node_taskargs task_arg_obj; - +#ifdef DSP_DMM_DEBUG + struct dmm_object *dmm_mgr; + struct proc_object *p_proc_object = + (struct proc_object *)hnode->hprocessor; +#endif int status; if (!hnode) goto func_end; @@ -2545,6 +2564,13 @@ static void delete_node(struct node_object *hnode, status = proc_un_map(hnode->hprocessor, (void *) task_arg_obj.udsp_heap_addr, pr_ctxt); +#ifdef DSP_DMM_DEBUG + status = dmm_get_handle(p_proc_object, &dmm_mgr); + if (dmm_mgr) + dmm_mem_map_dump(dmm_mgr); + else + status = DSP_EHANDLE; +#endif } } if (node_type != NODE_MESSAGE) { diff --git a/drivers/staging/tidspbridge/rmgr/proc.c b/drivers/staging/tidspbridge/rmgr/proc.c index 7a15a02..429f354 100644 --- a/drivers/staging/tidspbridge/rmgr/proc.c +++ b/drivers/staging/tidspbridge/rmgr/proc.c @@ -39,6 +39,7 @@ #include <dspbridge/cod.h> #include <dspbridge/dev.h> #include <dspbridge/procpriv.h> +#include <dspbridge/dmm.h> /* ----------------------------------- Resource Manager */ #include <dspbridge/mgr.h> @@ -1077,6 +1078,7 @@ int proc_load(void *hprocessor, const s32 argc_index, s32 cnew_envp; /* " " in new_envp[] */ s32 nproc_id = 0; /* Anticipate MP version. */ struct dcd_manager *hdcd_handle; + struct dmm_object *dmm_mgr; u32 dw_ext_end; u32 proc_id; int brd_state; @@ -1267,6 +1269,25 @@ int proc_load(void *hprocessor, const s32 argc_index, if (!status) status = cod_get_sym_value(cod_mgr, EXTEND, &dw_ext_end); + + /* Reset DMM structs and add an initial free chunk */ + if (!status) { + status = + dev_get_dmm_mgr(p_proc_object->hdev_obj, + &dmm_mgr); + if (dmm_mgr) { + /* Set dw_ext_end to DMM START u8 + * address */ + dw_ext_end = + (dw_ext_end + 1) * DSPWORDSIZE; + /* DMM memory is from EXT_END */ + status = dmm_create_tables(dmm_mgr, + dw_ext_end, + DMMPOOLSIZE); + } else { + status = -EFAULT; + } + } } } /* Restore the original argv[0] */ @@ -1369,6 +1390,7 @@ int proc_map(void *hprocessor, void *pmpu_addr, u32 ul_size, map_obj->dsp_addr = (va_align | ((u32)pmpu_addr & (PG_SIZE4K - 1))); *pp_map_addr = (void *)map_obj->dsp_addr; + pr_err("%s: mapped address %x\n", __func__, *pp_map_addr); } else { remove_mapping_information(pr_ctxt, va_align); } @@ -1611,6 +1633,7 @@ int proc_un_map(void *hprocessor, void *map_addr, int status = 0; struct proc_object *p_proc_object = (struct proc_object *)hprocessor; u32 va_align; + u32 size_align; va_align = PG_ALIGN_LOW((u32) map_addr, PG_SIZE4K); if (!p_proc_object) { |