samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

msm: camera: smmu: add new flag to indicate Hw, CDM access

Browse Source 
When set, buffers will be mapped within 32-bit region
address space and in patching, if Shared or CmdBUffer is
not set for such buffers - patch the value with right shift
by 8. kmd does as below.

Map:
  Shared or CmdBuffer : Mapped within 32bit.
  HwAndCDMOrShared    : Mapped within 32bit
  others(HwAccess)    : Mapped within 40bit
Patching:
  Shared or CmdBuffer : as is
  HwAndCDMOrShared    : iova >> 8
  others (HwAccess)   : iova >> 8

Shared/CmdBuffer takes precedence over HwAndCDMOrShared.

CRs-Fixed: 3128094
Change-Id: Ifd9f5beaf2659f77544cd0722ef7f60d6c0684a7
Signed-off-by: Pavan Kumar Chilamkurthi <quic_pchilamk@quicinc.com>
This commit is contained in:
Pavan Kumar Chilamkurthi
2022-02-10 07:45:56 -08:00
committed by Camera Software Integration
parent cd2c6d0ab8
commit 3ea1c2ad59
3 changed files with 13 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/uapi/camera/media/cam_req_mgr.h
View File

@@ -292,6 +292,7 @@ struct cam_req_mgr_link_control {
#define CAM_MEM_FLAG_DISABLE_DELAYED_UNMAP (1<<13)
#define CAM_MEM_FLAG_KMD_DEBUG_FLAG (1<<14)
#define CAM_MEM_FLAG_EVA_NOPIXEL (1<<15)
#define CAM_MEM_FLAG_HW_AND_CDM_OR_SHARED (1<<16)
#define CAM_MEM_MMU_MAX_HANDLE 16