xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

firmware: scm: Add new SCM call API for switching memory ownership

Browse Source 
Two different processors on a SOC need to switch memory ownership
during load/unload. To enable this, second level memory map table
need to be updated, which is done by secure layer.
This patch adds the interface for making secure monitor call for
memory ownership switching request.

Acked-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
[bjorn: Minor style and kerneldoc updates]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Avaneesh Kumar Dwivedi
2017-10-24 21:22:24 +05:30
committed by Bjorn Andersson
parent 33d930e59a
commit d82bd35997
5 changed files with 150 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/firmware/qcom_scm.h
View File

@@ -95,5 +95,10 @@ extern int __qcom_scm_iommu_secure_ptbl_size(struct device *dev, u32 spare,
size_t *size);
extern int __qcom_scm_iommu_secure_ptbl_init(struct device *dev, u64 addr,
u32 size, u32 spare);
#define QCOM_MEM_PROT_ASSIGN_ID 0x16
extern int __qcom_scm_assign_mem(struct device *dev,
phys_addr_t mem_region, size_t mem_sz,
phys_addr_t src, size_t src_sz,
phys_addr_t dest, size_t dest_sz);
#endif