Commit 1289f7f1 authored by Yoshihiro Shimoda's avatar Yoshihiro Shimoda Committed by Joerg Roedel
Browse files

iommu/ipmmu-vmsa: Add utlb_offset_base 



Since we will have changed memory mapping of the IPMMU in the future,
this patch adds a utlb_offset_base into struct ipmmu_features
for IMUCTR and IMUASID registers. No behavior change.

Signed-off-by: default avatarYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: default avatarNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 3667c997

drivers/iommu/ipmmu-vmsa.c

+4 −1
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ struct ipmmu_features { 
	bool cache_snoop;

	unsigned int ctx_offset_base;

	unsigned int ctx_offset_stride;

	unsigned int utlb_offset_base;

};



struct ipmmu_vmsa_device {
@@ -232,7 +233,7 @@ static void ipmmu_ctx_write_all(struct ipmmu_vmsa_domain *domain, 


static u32 ipmmu_utlb_reg(struct ipmmu_vmsa_device *mmu, unsigned int reg)

{

	return reg;

	return mmu->features->utlb_offset_base + reg;

}



static void ipmmu_imuasid_write(struct ipmmu_vmsa_device *mmu,
@@ -958,6 +959,7 @@ static const struct ipmmu_features ipmmu_features_default = { 
	.cache_snoop = true,

	.ctx_offset_base = 0,

	.ctx_offset_stride = 0x40,

	.utlb_offset_base = 0,

};



static const struct ipmmu_features ipmmu_features_rcar_gen3 = {
@@ -971,6 +973,7 @@ static const struct ipmmu_features ipmmu_features_rcar_gen3 = { 
	.cache_snoop = false,

	.ctx_offset_base = 0,

	.ctx_offset_stride = 0x40,

	.utlb_offset_base = 0,

};



static const struct of_device_id ipmmu_of_ids[] = {

CRA Git | Maintained and supported by SUSTech CRA and CCSE