From: Felipe Contreras <felipe.contreras@xxxxxxxxx>
This reverts commit 2ab573487a98c06fdfb34308f641f09369d61fa2.
Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@xxxxxx>
---
drivers/staging/tidspbridge/Makefile | 2 +-
drivers/staging/tidspbridge/core/tiomap3430.c | 1 +
.../staging/tidspbridge/include/dspbridge/dev.h | 24 +
.../staging/tidspbridge/include/dspbridge/dmm.h | 75 +++
.../staging/tidspbridge/include/dspbridge/drv.h | 6 +
drivers/staging/tidspbridge/pmgr/dev.c | 61 +++-
drivers/staging/tidspbridge/pmgr/dmm.c | 533 ++++++++++++++++++++
drivers/staging/tidspbridge/rmgr/node.c | 28 +-
drivers/staging/tidspbridge/rmgr/proc.c | 23 +
9 files changed, 747 insertions(+), 6 deletions(-)
create mode 100644 drivers/staging/tidspbridge/include/dspbridge/dmm.h
create mode 100644 drivers/staging/tidspbridge/pmgr/dmm.c
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) {
--
1.7.1
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