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Message-Id: <1285899178-14413-11-git-send-email-x0095840@ti.com>
Date: Thu, 30 Sep 2010 21:12:57 -0500
From: Fernando Guzman Lugo <x0095840@...com>
To: <gregkh@...e.de>
Cc: <felipe.contreras@...ia.com>, <ameya.palande@...ia.com>,
<nm@...com>, <Hiroshi.DOYU@...ia.com>, <ohad@...ery.com>,
<linux-kernel@...r.kernel.org>, <andy.shevchenko@...il.com>,
<linux-omap@...r.kernel.org>,
Fernando Guzman Lugo <x0095840@...com>
Subject: [PATCHv2 10/11] staging: tidspbridge - deprecate reserve/unreserve_memory funtions
Now what iommu memory usage is kept track by iommu module
the functions reserve/unreserve_memory are not needed anymore.
Signed-off-by: Fernando Guzman Lugo <x0095840@...com>
---
.../staging/tidspbridge/include/dspbridge/proc.h | 46 --------
drivers/staging/tidspbridge/pmgr/dspapi.c | 34 +-----
drivers/staging/tidspbridge/rmgr/node.c | 20 +----
drivers/staging/tidspbridge/rmgr/proc.c | 114 ++------------------
4 files changed, 17 insertions(+), 197 deletions(-)
diff --git a/drivers/staging/tidspbridge/include/dspbridge/proc.h b/drivers/staging/tidspbridge/include/dspbridge/proc.h
index 5e09fd1..2d12aab 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/proc.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/proc.h
@@ -551,29 +551,6 @@ extern int proc_map(void *hprocessor,
struct process_context *pr_ctxt);
/*
- * ======== proc_reserve_memory ========
- * Purpose:
- * Reserve a virtually contiguous region of DSP address space.
- * Parameters:
- * hprocessor : The processor handle.
- * ul_size : Size of the address space to reserve.
- * pp_rsv_addr : Ptr to DSP side reserved u8 address.
- * Returns:
- * 0 : Success.
- * -EFAULT : Invalid processor handle.
- * -EPERM : General failure.
- * -ENOMEM : Cannot reserve chunk of this size.
- * Requires:
- * pp_rsv_addr is not NULL
- * PROC Initialized.
- * Ensures:
- * Details:
- */
-extern int proc_reserve_memory(void *hprocessor,
- u32 ul_size, void **pp_rsv_addr,
- struct process_context *pr_ctxt);
-
-/*
* ======== proc_un_map ========
* Purpose:
* Removes a MPU buffer mapping from the DSP address space.
@@ -595,27 +572,4 @@ extern int proc_reserve_memory(void *hprocessor,
extern int proc_un_map(void *hprocessor, void *map_addr,
struct process_context *pr_ctxt);
-/*
- * ======== proc_un_reserve_memory ========
- * Purpose:
- * Frees a previously reserved region of DSP address space.
- * Parameters:
- * hprocessor : The processor handle.
- * prsv_addr : Ptr to DSP side reservedBYTE address.
- * Returns:
- * 0 : Success.
- * -EFAULT : Invalid processor handle.
- * -EPERM : General failure.
- * -ENOENT : Cannot find a reserved region starting with this
- * : address.
- * Requires:
- * prsv_addr is not NULL
- * PROC Initialized.
- * Ensures:
- * Details:
- */
-extern int proc_un_reserve_memory(void *hprocessor,
- void *prsv_addr,
- struct process_context *pr_ctxt);
-
#endif /* PROC_ */
diff --git a/drivers/staging/tidspbridge/pmgr/dspapi.c b/drivers/staging/tidspbridge/pmgr/dspapi.c
index faf8304..0187c47 100644
--- a/drivers/staging/tidspbridge/pmgr/dspapi.c
+++ b/drivers/staging/tidspbridge/pmgr/dspapi.c
@@ -989,27 +989,10 @@ u32 procwrap_register_notify(union trapped_args *args, void *pr_ctxt)
/*
* ======== procwrap_reserve_memory ========
*/
-u32 procwrap_reserve_memory(union trapped_args *args, void *pr_ctxt)
+u32 __deprecated procwrap_reserve_memory(union trapped_args *args,
+ void *pr_ctxt)
{
- int status;
- void *prsv_addr;
- void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
-
- if ((args->args_proc_rsvmem.ul_size <= 0) ||
- (args->args_proc_rsvmem.ul_size & (PG_SIZE4K - 1)) != 0)
- return -EINVAL;
-
- status = proc_reserve_memory(hprocessor,
- args->args_proc_rsvmem.ul_size, &prsv_addr,
- pr_ctxt);
- if (!status) {
- if (put_user(prsv_addr, args->args_proc_rsvmem.pp_rsv_addr)) {
- status = -EINVAL;
- proc_un_reserve_memory(args->args_proc_rsvmem.
- hprocessor, prsv_addr, pr_ctxt);
- }
- }
- return status;
+ return 0;
}
/*
@@ -1038,15 +1021,10 @@ u32 procwrap_un_map(union trapped_args *args, void *pr_ctxt)
/*
* ======== procwrap_un_reserve_memory ========
*/
-u32 procwrap_un_reserve_memory(union trapped_args *args, void *pr_ctxt)
+u32 __deprecated procwrap_un_reserve_memory(union trapped_args *args,
+ void *pr_ctxt)
{
- int status;
- void *hprocessor = ((struct process_context *)pr_ctxt)->hprocessor;
-
- status = proc_un_reserve_memory(hprocessor,
- args->args_proc_unrsvmem.prsv_addr,
- pr_ctxt);
- return status;
+ return 0;
}
/*
diff --git a/drivers/staging/tidspbridge/rmgr/node.c b/drivers/staging/tidspbridge/rmgr/node.c
index 84882dc..d681617 100644
--- a/drivers/staging/tidspbridge/rmgr/node.c
+++ b/drivers/staging/tidspbridge/rmgr/node.c
@@ -430,17 +430,6 @@ int node_allocate(struct proc_object *hprocessor,
if (status)
goto func_cont;
- status = proc_reserve_memory(hprocessor,
- pnode->create_args.asa.task_arg_obj.
- heap_size + PAGE_SIZE,
- (void **)&(pnode->create_args.asa.
- task_arg_obj.udsp_heap_res_addr),
- pr_ctxt);
- if (status) {
- pr_err("%s: Failed to reserve memory for heap: 0x%x\n",
- __func__, status);
- goto func_cont;
- }
#ifdef DSP_DMM_DEBUG
status = dmm_get_handle(p_proc_object, &dmm_mgr);
if (!dmm_mgr) {
@@ -456,8 +445,7 @@ int node_allocate(struct proc_object *hprocessor,
map_attrs |= DSP_MAPVIRTUALADDR;
status = proc_map(hprocessor, (void *)attr_in->pgpp_virt_addr,
pnode->create_args.asa.task_arg_obj.heap_size,
- (void *)pnode->create_args.asa.task_arg_obj.
- udsp_heap_res_addr, (void **)&mapped_addr, map_attrs,
+ NULL, (void **)&mapped_addr, map_attrs,
pr_ctxt);
if (status)
pr_err("%s: Failed to map memory for Heap: 0x%x\n",
@@ -2577,12 +2565,6 @@ static void delete_node(struct node_object *hnode,
status = proc_un_map(hnode->hprocessor, (void *)
task_arg_obj.udsp_heap_addr,
pr_ctxt);
-
- status = proc_un_reserve_memory(hnode->hprocessor,
- (void *)
- task_arg_obj.
- udsp_heap_res_addr,
- pr_ctxt);
#ifdef DSP_DMM_DEBUG
status = dmm_get_handle(p_proc_object, &dmm_mgr);
if (dmm_mgr)
diff --git a/drivers/staging/tidspbridge/rmgr/proc.c b/drivers/staging/tidspbridge/rmgr/proc.c
index e5fec57..429f354 100644
--- a/drivers/staging/tidspbridge/rmgr/proc.c
+++ b/drivers/staging/tidspbridge/rmgr/proc.c
@@ -152,34 +152,21 @@ static struct dmm_map_object *add_mapping_info(struct process_context *pr_ctxt,
return map_obj;
}
-static int match_exact_map_obj(struct dmm_map_object *map_obj,
- u32 dsp_addr, u32 size)
-{
- if (map_obj->dsp_addr == dsp_addr && map_obj->size != size)
- pr_err("%s: addr match (0x%x), size don't (0x%x != 0x%x)\n",
- __func__, dsp_addr, map_obj->size, size);
-
- return map_obj->dsp_addr == dsp_addr &&
- map_obj->size == size;
-}
-
static void remove_mapping_information(struct process_context *pr_ctxt,
- u32 dsp_addr, u32 size)
+ u32 dsp_addr)
{
struct dmm_map_object *map_obj;
- pr_debug("%s: looking for virt 0x%x size 0x%x\n", __func__,
- dsp_addr, size);
+ pr_debug("%s: looking for virt 0x%x\n", __func__, dsp_addr);
spin_lock(&pr_ctxt->dmm_map_lock);
list_for_each_entry(map_obj, &pr_ctxt->dmm_map_list, link) {
- pr_debug("%s: candidate: mpu_addr 0x%x virt 0x%x size 0x%x\n",
+ pr_debug("%s: candidate: mpu_addr 0x%x virt 0x%x\n",
__func__,
map_obj->mpu_addr,
- map_obj->dsp_addr,
- map_obj->size);
+ map_obj->dsp_addr);
- if (match_exact_map_obj(map_obj, dsp_addr, size)) {
+ if (map_obj->dsp_addr == dsp_addr) {
pr_debug("%s: match, deleting map info\n", __func__);
list_del(&map_obj->link);
kfree(map_obj->dma_info.sg);
@@ -1353,7 +1340,6 @@ int proc_map(void *hprocessor, void *pmpu_addr, u32 ul_size,
{
u32 va_align;
u32 pa_align;
- struct dmm_object *dmm_mgr;
u32 size_align;
int status = 0;
struct proc_object *p_proc_object = (struct proc_object *)hprocessor;
@@ -1382,11 +1368,6 @@ int proc_map(void *hprocessor, void *pmpu_addr, u32 ul_size,
}
/* Critical section */
mutex_lock(&proc_lock);
- dmm_get_handle(p_proc_object, &dmm_mgr);
- if (dmm_mgr)
- status = dmm_map_memory(dmm_mgr, va_align, size_align);
- else
- status = -EFAULT;
/* Add mapping to the page tables. */
if (!status) {
@@ -1409,9 +1390,9 @@ 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, size_align);
- dmm_un_map_memory(dmm_mgr, va_align, &size_align);
+ remove_mapping_information(pr_ctxt, va_align);
}
mutex_unlock(&proc_lock);
@@ -1504,38 +1485,6 @@ func_end:
}
/*
- * ======== proc_reserve_memory ========
- * Purpose:
- * Reserve a virtually contiguous region of DSP address space.
- */
-int proc_reserve_memory(void *hprocessor, u32 ul_size,
- void **pp_rsv_addr,
- struct process_context *pr_ctxt)
-{
- struct dmm_object *dmm_mgr;
- int status = 0;
- struct proc_object *p_proc_object = (struct proc_object *)hprocessor;
-
- if (!p_proc_object) {
- status = -EFAULT;
- goto func_end;
- }
-
- status = dmm_get_handle(p_proc_object, &dmm_mgr);
- if (!dmm_mgr) {
- status = -EFAULT;
- goto func_end;
- }
-
- status = dmm_reserve_memory(dmm_mgr, ul_size, (u32 *) pp_rsv_addr);
-func_end:
- dev_dbg(bridge, "%s: hprocessor: 0x%p ul_size: 0x%x pp_rsv_addr: 0x%p "
- "status 0x%x\n", __func__, hprocessor,
- ul_size, pp_rsv_addr, status);
- return status;
-}
-
-/*
* ======== proc_start ========
* Purpose:
* Start a processor running.
@@ -1683,7 +1632,6 @@ int proc_un_map(void *hprocessor, void *map_addr,
{
int status = 0;
struct proc_object *p_proc_object = (struct proc_object *)hprocessor;
- struct dmm_object *dmm_mgr;
u32 va_align;
u32 size_align;
@@ -1693,23 +1641,11 @@ int proc_un_map(void *hprocessor, void *map_addr,
goto func_end;
}
- status = dmm_get_handle(hprocessor, &dmm_mgr);
- if (!dmm_mgr) {
- status = -EFAULT;
- goto func_end;
- }
-
/* Critical section */
mutex_lock(&proc_lock);
- /*
- * Update DMM structures. Get the size to unmap.
- * This function returns error if the VA is not mapped
- */
- status = dmm_un_map_memory(dmm_mgr, (u32) va_align, &size_align);
/* Remove mapping from the page tables. */
- if (!status)
- status = user_to_dsp_unmap(
- p_proc_object->hbridge_context->dsp_mmu, va_align);
+ status = user_to_dsp_unmap(p_proc_object->hbridge_context->dsp_mmu,
+ va_align);
mutex_unlock(&proc_lock);
if (status)
@@ -1720,7 +1656,7 @@ int proc_un_map(void *hprocessor, void *map_addr,
* from dmm_map_list, so that mapped memory resource tracking
* remains uptodate
*/
- remove_mapping_information(pr_ctxt, (u32) map_addr, size_align);
+ remove_mapping_information(pr_ctxt, (u32) map_addr);
func_end:
dev_dbg(bridge, "%s: hprocessor: 0x%p map_addr: 0x%p status: 0x%x\n",
@@ -1729,36 +1665,6 @@ func_end:
}
/*
- * ======== proc_un_reserve_memory ========
- * Purpose:
- * Frees a previously reserved region of DSP address space.
- */
-int proc_un_reserve_memory(void *hprocessor, void *prsv_addr,
- struct process_context *pr_ctxt)
-{
- struct dmm_object *dmm_mgr;
- int status = 0;
- struct proc_object *p_proc_object = (struct proc_object *)hprocessor;
-
- if (!p_proc_object) {
- status = -EFAULT;
- goto func_end;
- }
-
- status = dmm_get_handle(p_proc_object, &dmm_mgr);
- if (!dmm_mgr) {
- status = -EFAULT;
- goto func_end;
- }
-
- status = dmm_un_reserve_memory(dmm_mgr, (u32) prsv_addr);
-func_end:
- dev_dbg(bridge, "%s: hprocessor: 0x%p prsv_addr: 0x%p status: 0x%x\n",
- __func__, hprocessor, prsv_addr, status);
- return status;
-}
-
-/*
* ======== = proc_monitor ======== ==
* Purpose:
* Place the Processor in Monitor State. This is an internal
--
1.6.3.3
--
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