From: Fernando Guzman Lugo Date: Tue, 5 Oct 2010 20:35:43 +0000 (-0500) Subject: staging: tidspbridge - deprecate reserve/unreserve_memory funtions X-Git-Tag: v2.6.37-rc1~60^2~3^2~327 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b1ced160af36043ee80d354318794753b6b7c008;p=karo-tx-linux.git 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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/tidspbridge/include/dspbridge/proc.h b/drivers/staging/tidspbridge/include/dspbridge/proc.h index 5e09fd165d9d..2d12aab6b5bf 100644 --- a/drivers/staging/tidspbridge/include/dspbridge/proc.h +++ b/drivers/staging/tidspbridge/include/dspbridge/proc.h @@ -550,29 +550,6 @@ extern int proc_map(void *hprocessor, void **pp_map_addr, u32 ul_map_attr, 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: @@ -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 faf8304f55e2..0187c47fb4d8 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 1562f3c1281c..ccb1811a4700 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", @@ -2576,12 +2564,6 @@ 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 e5fec5729037..429f3549965a 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); @@ -1503,38 +1484,6 @@ func_end: return status; } -/* - * ======== 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: @@ -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", @@ -1728,36 +1664,6 @@ func_end: return status; } -/* - * ======== 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: