nv-tegra-mirror/linux-nv-oot
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-24 02:01:36 +03:00
Code Issues Packages Projects Releases Wiki Activity

platform: nvadsp: do not export da to va mappings

Browse Source 
nvadsp_da_to_va_mappings API provides the ability to get the virtual
address from the physical address. This API does not need to be exposed
as there are no other modules using it and prevent prevent speculative
load related leak.

Bug 200381256

Change-Id: Ic94497ca40402101e4246b914f00e030551b0c4c
Signed-off-by: Ajay Nandakumar <anandakumarm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1652771
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Ajay Nandakumar
2018-02-06 17:54:03 +05:30
committed by Laxman Dewangan
parent e0ecbe2746
commit 5c63aad7c2
3 changed files with 7 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/platform/tegra/nvadsp/dev.c
View File

@@ -3,7 +3,7 @@
*
* A device driver for ADSP and APE
*
* Copyright (C) 2014-2017, NVIDIA Corporation. All rights reserved.
* Copyright (C) 2014-2018, NVIDIA Corporation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
@@ -282,7 +282,7 @@ static int __init nvadsp_probe(struct platform_device *pdev)
goto out;
}
drv_data->base_regs[iter] = base;
adsp_add_load_mappings(res->start, base,
nvadsp_add_load_mappings(res->start, base,
resource_size(res));
}

5
drivers/platform/tegra/nvadsp/os.c
View File

@@ -309,7 +309,7 @@ bool is_adsp_dram_addr(u64 addr)
return false;
}
int adsp_add_load_mappings(phys_addr_t pa, void *mapping, int len)
int nvadsp_add_load_mappings(phys_addr_t pa, void *mapping, int len)
{
if (map_idx >= NM_LOAD_MAPPINGS)
return -EINVAL;
@@ -342,7 +342,6 @@ void *nvadsp_da_to_va_mappings(u64 da, int len)
}
return ptr;
}
EXPORT_SYMBOL(nvadsp_da_to_va_mappings);
void *nvadsp_alloc_coherent(size_t size, dma_addr_t *da, gfp_t flags)
{
@@ -623,7 +622,7 @@ static int allocate_memory_for_adsp_os(void)
goto end;
}
#endif
adsp_add_load_mappings(addr, dram_va, size);
nvadsp_add_load_mappings(addr, dram_va, size);
end:
return ret;
}

5
drivers/platform/tegra/nvadsp/os.h
View File

@@ -3,7 +3,7 @@
*
* A header file containing data structures shared with ADSP OS
*
* Copyright (C) 2014-2017 NVIDIA Corporation. All rights reserved.
* Copyright (C) 2014-2018 NVIDIA Corporation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
@@ -160,7 +160,8 @@ static inline int nvadsp_os_init(struct platform_device *pdev)
int nvadsp_os_probe(struct platform_device *);
int nvadsp_app_module_probe(struct platform_device *);
int adsp_add_load_mappings(phys_addr_t, void *, int);
void *nvadsp_da_to_va_mappings(u64 da, int len);
int nvadsp_add_load_mappings(phys_addr_t pa, void *mapping, int len);
struct elf32_shdr *nvadsp_get_section(const struct firmware *, char *);
struct global_sym_info *find_global_symbol(const char *);
void update_nvadsp_app_shared_ptr(void *);