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Commit a2e52222 authored by Laura Abbott's avatar Laura Abbott
Browse files

msm: iommu: Set reserved bits for IOMMU hardware 



There are several hardware private bits that are required for
proper operations of IOMMU hardware blocks. Set those bits
appropriately.

Change-Id: I60bf08dc71f7081c03ac8b271e651714b70d26c7
Signed-off-by: default avatarLaura Abbott <lauraa@codeaurora.org>
parent 07ca70b0

arch/arm/mach-msm/include/mach/iommu_hw-v1.h

+4 −0
Original line number Diff line number Diff line
@@ -171,6 +171,8 @@ do { \ 
				SET_GLOBAL_FIELD(b, MICRO_MMU_CTRL, HALT_REQ, v)

#define GET_MICRO_MMU_CTRL_IDLE(b) \

				GET_GLOBAL_FIELD(b, MICRO_MMU_CTRL, IDLE)

#define SET_MICRO_MMU_CTRL_RESERVED(b, v) \

				SET_GLOBAL_FIELD(b, MICRO_MMU_CTRL, RESERVED, v)

#define SET_PREDICTIONDIS0(b, v) SET_GLOBAL_REG(PREDICTIONDIS0, (b), (v))

#define SET_PREDICTIONDIS1(b, v) SET_GLOBAL_REG(PREDICTIONDIS1, (b), (v))

#define SET_S1L1BFBLP0(b, v)     SET_GLOBAL_REG(S1L1BFBLP0, (b), (v))
@@ -1687,6 +1689,7 @@ do { \ 
#define CBFRSYNRA_SID_MASK      0x7FFF



/* Implementation defined register space masks */

#define MICRO_MMU_CTRL_RESERVED_MASK          0x03

#define MICRO_MMU_CTRL_HALT_REQ_MASK          0x01

#define MICRO_MMU_CTRL_IDLE_MASK              0x01
@@ -2071,6 +2074,7 @@ do { \ 
#define CBFRSYNRA_SID_SHIFT        0



/* Implementation defined register space shift */

#define MICRO_MMU_CTRL_RESERVED_SHIFT         0x00

#define MICRO_MMU_CTRL_HALT_REQ_SHIFT         0x02

#define MICRO_MMU_CTRL_IDLE_SHIFT             0x03

drivers/iommu/msm_iommu-v1.c

+1 −0
Original line number Diff line number Diff line
@@ -676,6 +676,7 @@ static int msm_iommu_attach_dev(struct iommu_domain *domain, struct device *dev) 
				goto unlock;

			}

		}

		SET_MICRO_MMU_CTRL_RESERVED(iommu_drvdata->base, 0x3);

		program_iommu_bfb_settings(iommu_drvdata->base,

					   iommu_drvdata->bfb_settings);

		set_m2v = true;

drivers/iommu/msm_iommu_sec.c

+1 −0
Original line number Diff line number Diff line
@@ -566,6 +566,7 @@ static int msm_iommu_attach_dev(struct iommu_domain *domain, struct device *dev) 


		ret = msm_iommu_sec_program_iommu(iommu_drvdata->sec_id);



		SET_MICRO_MMU_CTRL_RESERVED(iommu_drvdata->base, 0x3);

		/* bfb settings are always programmed by HLOS */

		program_iommu_bfb_settings(iommu_drvdata->base,

					   iommu_drvdata->bfb_settings);