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path: root/drivers/staging/tidspbridge/pmgr/cmm.c
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Diffstat (limited to 'drivers/staging/tidspbridge/pmgr/cmm.c')
-rw-r--r--drivers/staging/tidspbridge/pmgr/cmm.c97
1 files changed, 2 insertions, 95 deletions
diff --git a/drivers/staging/tidspbridge/pmgr/cmm.c b/drivers/staging/tidspbridge/pmgr/cmm.c
index e6b2c8962f81..4a800dadd703 100644
--- a/drivers/staging/tidspbridge/pmgr/cmm.c
+++ b/drivers/staging/tidspbridge/pmgr/cmm.c
@@ -35,9 +35,6 @@
/* ----------------------------------- DSP/BIOS Bridge */
#include <dspbridge/dbdefs.h>
-/* ----------------------------------- Trace & Debug */
-#include <dspbridge/dbc.h>
-
/* ----------------------------------- OS Adaptation Layer */
#include <dspbridge/sync.h>
@@ -134,9 +131,6 @@ struct cmm_mnode {
u32 client_proc; /* Process that allocated this mem block */
};
-/* ----------------------------------- Globals */
-static u32 refs; /* module reference count */
-
/* ----------------------------------- Function Prototypes */
static void add_to_free_list(struct cmm_allocator *allocator,
struct cmm_mnode *pnode);
@@ -244,9 +238,6 @@ int cmm_create(struct cmm_object **ph_cmm_mgr,
struct cmm_object *cmm_obj = NULL;
int status = 0;
- DBC_REQUIRE(refs > 0);
- DBC_REQUIRE(ph_cmm_mgr != NULL);
-
*ph_cmm_mgr = NULL;
/* create, zero, and tag a cmm mgr object */
cmm_obj = kzalloc(sizeof(struct cmm_object), GFP_KERNEL);
@@ -256,8 +247,6 @@ int cmm_create(struct cmm_object **ph_cmm_mgr,
if (mgr_attrts == NULL)
mgr_attrts = &cmm_dfltmgrattrs; /* set defaults */
- /* 4 bytes minimum */
- DBC_ASSERT(mgr_attrts->min_block_size >= 4);
/* save away smallest block allocation for this cmm mgr */
cmm_obj->min_block_size = mgr_attrts->min_block_size;
cmm_obj->page_size = PAGE_SIZE;
@@ -283,7 +272,6 @@ int cmm_destroy(struct cmm_object *hcmm_mgr, bool force)
s32 slot_seg;
struct cmm_mnode *node, *tmp;
- DBC_REQUIRE(refs > 0);
if (!hcmm_mgr) {
status = -EFAULT;
return status;
@@ -326,19 +314,6 @@ int cmm_destroy(struct cmm_object *hcmm_mgr, bool force)
}
/*
- * ======== cmm_exit ========
- * Purpose:
- * Discontinue usage of module; free resources when reference count
- * reaches 0.
- */
-void cmm_exit(void)
-{
- DBC_REQUIRE(refs > 0);
-
- refs--;
-}
-
-/*
* ======== cmm_free_buf ========
* Purpose:
* Free the given buffer.
@@ -351,9 +326,6 @@ int cmm_free_buf(struct cmm_object *hcmm_mgr, void *buf_pa, u32 ul_seg_id)
struct cmm_allocator *allocator;
struct cmm_attrs *pattrs;
- DBC_REQUIRE(refs > 0);
- DBC_REQUIRE(buf_pa != NULL);
-
if (ul_seg_id == 0) {
pattrs = &cmm_dfltalctattrs;
ul_seg_id = pattrs->seg_id;
@@ -392,8 +364,6 @@ int cmm_get_handle(void *hprocessor, struct cmm_object ** ph_cmm_mgr)
int status = 0;
struct dev_object *hdev_obj;
- DBC_REQUIRE(refs > 0);
- DBC_REQUIRE(ph_cmm_mgr != NULL);
if (hprocessor != NULL)
status = proc_get_dev_object(hprocessor, &hdev_obj);
else
@@ -419,8 +389,6 @@ int cmm_get_info(struct cmm_object *hcmm_mgr,
struct cmm_allocator *altr;
struct cmm_mnode *curr;
- DBC_REQUIRE(cmm_info_obj != NULL);
-
if (!hcmm_mgr) {
status = -EFAULT;
return status;
@@ -464,24 +432,6 @@ int cmm_get_info(struct cmm_object *hcmm_mgr,
}
/*
- * ======== cmm_init ========
- * Purpose:
- * Initializes private state of CMM module.
- */
-bool cmm_init(void)
-{
- bool ret = true;
-
- DBC_REQUIRE(refs >= 0);
- if (ret)
- refs++;
-
- DBC_ENSURE((ret && (refs > 0)) || (!ret && (refs >= 0)));
-
- return ret;
-}
-
-/*
* ======== cmm_register_gppsm_seg ========
* Purpose:
* Register a block of SM with the CMM to be used for later GPP SM
@@ -499,13 +449,6 @@ int cmm_register_gppsm_seg(struct cmm_object *hcmm_mgr,
struct cmm_mnode *new_node;
s32 slot_seg;
- DBC_REQUIRE(ul_size > 0);
- DBC_REQUIRE(sgmt_id != NULL);
- DBC_REQUIRE(dw_gpp_base_pa != 0);
- DBC_REQUIRE(gpp_base_va != 0);
- DBC_REQUIRE((c_factor <= CMM_ADDTODSPPA) &&
- (c_factor >= CMM_SUBFROMDSPPA));
-
dev_dbg(bridge, "%s: dw_gpp_base_pa %x ul_size %x dsp_addr_offset %x "
"dw_dsp_base %x ul_dsp_size %x gpp_base_va %x\n",
__func__, dw_gpp_base_pa, ul_size, dsp_addr_offset,
@@ -589,7 +532,6 @@ int cmm_un_register_gppsm_seg(struct cmm_object *hcmm_mgr,
struct cmm_allocator *psma;
u32 ul_id = ul_seg_id;
- DBC_REQUIRE(ul_seg_id > 0);
if (!hcmm_mgr)
return -EFAULT;
@@ -635,8 +577,6 @@ static void un_register_gppsm_seg(struct cmm_allocator *psma)
{
struct cmm_mnode *curr, *tmp;
- DBC_REQUIRE(psma != NULL);
-
/* free nodes on free list */
list_for_each_entry_safe(curr, tmp, &psma->free_list, link) {
list_del(&curr->link);
@@ -664,7 +604,6 @@ static void un_register_gppsm_seg(struct cmm_allocator *psma)
static s32 get_slot(struct cmm_object *cmm_mgr_obj)
{
s32 slot_seg = -1; /* neg on failure */
- DBC_REQUIRE(cmm_mgr_obj != NULL);
/* get first available slot in cmm mgr SMSegTab[] */
for (slot_seg = 0; slot_seg < CMM_MAXGPPSEGS; slot_seg++) {
if (cmm_mgr_obj->pa_gppsm_seg_tab[slot_seg] == NULL)
@@ -687,11 +626,6 @@ static struct cmm_mnode *get_node(struct cmm_object *cmm_mgr_obj, u32 dw_pa,
{
struct cmm_mnode *pnode;
- DBC_REQUIRE(cmm_mgr_obj != NULL);
- DBC_REQUIRE(dw_pa != 0);
- DBC_REQUIRE(dw_va != 0);
- DBC_REQUIRE(ul_size != 0);
-
/* Check cmm mgr's node freelist */
if (list_empty(&cmm_mgr_obj->node_free_list)) {
pnode = kzalloc(sizeof(struct cmm_mnode), GFP_KERNEL);
@@ -719,7 +653,6 @@ static struct cmm_mnode *get_node(struct cmm_object *cmm_mgr_obj, u32 dw_pa,
*/
static void delete_node(struct cmm_object *cmm_mgr_obj, struct cmm_mnode *pnode)
{
- DBC_REQUIRE(pnode != NULL);
list_add_tail(&pnode->link, &cmm_mgr_obj->node_free_list);
}
@@ -794,9 +727,6 @@ static void add_to_free_list(struct cmm_allocator *allocator,
static struct cmm_allocator *get_allocator(struct cmm_object *cmm_mgr_obj,
u32 ul_seg_id)
{
- DBC_REQUIRE(cmm_mgr_obj != NULL);
- DBC_REQUIRE((ul_seg_id > 0) && (ul_seg_id <= CMM_MAXGPPSEGS));
-
return cmm_mgr_obj->pa_gppsm_seg_tab[ul_seg_id - 1];
}
@@ -818,10 +748,6 @@ int cmm_xlator_create(struct cmm_xlatorobject **xlator,
struct cmm_xlator *xlator_object = NULL;
int status = 0;
- DBC_REQUIRE(refs > 0);
- DBC_REQUIRE(xlator != NULL);
- DBC_REQUIRE(hcmm_mgr != NULL);
-
*xlator = NULL;
if (xlator_attrs == NULL)
xlator_attrs = &cmm_dfltxlatorattrs; /* set defaults */
@@ -851,13 +777,6 @@ void *cmm_xlator_alloc_buf(struct cmm_xlatorobject *xlator, void *va_buf,
void *tmp_va_buff;
struct cmm_attrs attrs;
- DBC_REQUIRE(refs > 0);
- DBC_REQUIRE(xlator != NULL);
- DBC_REQUIRE(xlator_obj->cmm_mgr != NULL);
- DBC_REQUIRE(va_buf != NULL);
- DBC_REQUIRE(pa_size > 0);
- DBC_REQUIRE(xlator_obj->seg_id > 0);
-
if (xlator_obj) {
attrs.seg_id = xlator_obj->seg_id;
__raw_writel(0, va_buf);
@@ -887,10 +806,6 @@ int cmm_xlator_free_buf(struct cmm_xlatorobject *xlator, void *buf_va)
int status = -EPERM;
void *buf_pa = NULL;
- DBC_REQUIRE(refs > 0);
- DBC_REQUIRE(buf_va != NULL);
- DBC_REQUIRE(xlator_obj->seg_id > 0);
-
if (xlator_obj) {
/* convert Va to Pa so we can free it. */
buf_pa = cmm_xlator_translate(xlator, buf_va, CMM_VA2PA);
@@ -900,7 +815,8 @@ int cmm_xlator_free_buf(struct cmm_xlatorobject *xlator, void *buf_va)
if (status) {
/* Uh oh, this shouldn't happen. Descriptor
* gone! */
- DBC_ASSERT(false); /* CMM is leaking mem */
+ pr_err("%s, line %d: Assertion failed\n",
+ __FILE__, __LINE__);
}
}
}
@@ -918,10 +834,6 @@ int cmm_xlator_info(struct cmm_xlatorobject *xlator, u8 ** paddr,
struct cmm_xlator *xlator_obj = (struct cmm_xlator *)xlator;
int status = 0;
- DBC_REQUIRE(refs > 0);
- DBC_REQUIRE(paddr != NULL);
- DBC_REQUIRE((segm_id > 0) && (segm_id <= CMM_MAXGPPSEGS));
-
if (xlator_obj) {
if (set_info) {
/* set translators virtual address range */
@@ -948,16 +860,11 @@ void *cmm_xlator_translate(struct cmm_xlatorobject *xlator, void *paddr,
struct cmm_allocator *allocator = NULL;
u32 dw_offset = 0;
- DBC_REQUIRE(refs > 0);
- DBC_REQUIRE(paddr != NULL);
- DBC_REQUIRE((xtype >= CMM_VA2PA) && (xtype <= CMM_DSPPA2PA));
-
if (!xlator_obj)
goto loop_cont;
cmm_mgr_obj = (struct cmm_object *)xlator_obj->cmm_mgr;
/* get this translator's default SM allocator */
- DBC_ASSERT(xlator_obj->seg_id > 0);
allocator = cmm_mgr_obj->pa_gppsm_seg_tab[xlator_obj->seg_id - 1];
if (!allocator)
goto loop_cont;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.