@@ -1261,15 +1261,25 @@ void arm_smmu_make_s1_cd(struct arm_smmu_cd *target,
struct arm_smmu_domain *smmu_domain)
{
struct arm_smmu_ctx_desc *cd = &smmu_domain->cd;
+ const struct io_pgtable_cfg *pgtbl_cfg =
+ &io_pgtable_ops_to_pgtable(smmu_domain->pgtbl_ops)->cfg;
+ typeof(&pgtbl_cfg->arm_lpae_s1_cfg.tcr) tcr =
+ &pgtbl_cfg->arm_lpae_s1_cfg.tcr;
memset(target, 0, sizeof(*target));
target->data[0] = cpu_to_le64(
- cd->tcr |
+ FIELD_PREP(CTXDESC_CD_0_TCR_T0SZ, tcr->tsz) |
+ FIELD_PREP(CTXDESC_CD_0_TCR_TG0, tcr->tg) |
+ FIELD_PREP(CTXDESC_CD_0_TCR_IRGN0, tcr->irgn) |
+ FIELD_PREP(CTXDESC_CD_0_TCR_ORGN0, tcr->orgn) |
+ FIELD_PREP(CTXDESC_CD_0_TCR_SH0, tcr->sh) |
+ CTXDESC_CD_0_TCR_EPD1 |
#ifdef __BIG_ENDIAN
CTXDESC_CD_0_ENDI |
#endif
CTXDESC_CD_0_V |
+ FIELD_PREP(CTXDESC_CD_0_TCR_IPS, tcr->ips) |
CTXDESC_CD_0_AA64 |
(master->stall_enabled ? CTXDESC_CD_0_S : 0) |
CTXDESC_CD_0_R |
@@ -1277,9 +1287,9 @@ void arm_smmu_make_s1_cd(struct arm_smmu_cd *target,
CTXDESC_CD_0_ASET |
FIELD_PREP(CTXDESC_CD_0_ASID, cd->asid)
);
-
- target->data[1] = cpu_to_le64(cd->ttbr & CTXDESC_CD_1_TTB0_MASK);
- target->data[3] = cpu_to_le64(cd->mair);
+ target->data[1] = cpu_to_le64(pgtbl_cfg->arm_lpae_s1_cfg.ttbr &
+ CTXDESC_CD_1_TTB0_MASK);
+ target->data[3] = cpu_to_le64(pgtbl_cfg->arm_lpae_s1_cfg.mair);
}
void arm_smmu_clear_cd(struct arm_smmu_master *master, int ssid)
@@ -2294,13 +2304,11 @@ static void arm_smmu_domain_free(struct iommu_domain *domain)
}
static int arm_smmu_domain_finalise_s1(struct arm_smmu_device *smmu,
- struct arm_smmu_domain *smmu_domain,
- struct io_pgtable_cfg *pgtbl_cfg)
+ struct arm_smmu_domain *smmu_domain)
{
int ret;
u32 asid;
struct arm_smmu_ctx_desc *cd = &smmu_domain->cd;
- typeof(&pgtbl_cfg->arm_lpae_s1_cfg.tcr) tcr = &pgtbl_cfg->arm_lpae_s1_cfg.tcr;
refcount_set(&cd->refs, 1);
@@ -2308,31 +2316,13 @@ static int arm_smmu_domain_finalise_s1(struct arm_smmu_device *smmu,
mutex_lock(&arm_smmu_asid_lock);
ret = xa_alloc(&arm_smmu_asid_xa, &asid, cd,
XA_LIMIT(1, (1 << smmu->asid_bits) - 1), GFP_KERNEL);
- if (ret)
- goto out_unlock;
-
cd->asid = (u16)asid;
- cd->ttbr = pgtbl_cfg->arm_lpae_s1_cfg.ttbr;
- cd->tcr = FIELD_PREP(CTXDESC_CD_0_TCR_T0SZ, tcr->tsz) |
- FIELD_PREP(CTXDESC_CD_0_TCR_TG0, tcr->tg) |
- FIELD_PREP(CTXDESC_CD_0_TCR_IRGN0, tcr->irgn) |
- FIELD_PREP(CTXDESC_CD_0_TCR_ORGN0, tcr->orgn) |
- FIELD_PREP(CTXDESC_CD_0_TCR_SH0, tcr->sh) |
- FIELD_PREP(CTXDESC_CD_0_TCR_IPS, tcr->ips) |
- CTXDESC_CD_0_TCR_EPD1 | CTXDESC_CD_0_AA64;
- cd->mair = pgtbl_cfg->arm_lpae_s1_cfg.mair;
-
- mutex_unlock(&arm_smmu_asid_lock);
- return 0;
-
-out_unlock:
mutex_unlock(&arm_smmu_asid_lock);
return ret;
}
static int arm_smmu_domain_finalise_s2(struct arm_smmu_device *smmu,
- struct arm_smmu_domain *smmu_domain,
- struct io_pgtable_cfg *pgtbl_cfg)
+ struct arm_smmu_domain *smmu_domain)
{
int vmid;
struct arm_smmu_s2_cfg *cfg = &smmu_domain->s2_cfg;
@@ -2356,8 +2346,7 @@ static int arm_smmu_domain_finalise(struct arm_smmu_domain *smmu_domain,
struct io_pgtable_cfg pgtbl_cfg;
struct io_pgtable_ops *pgtbl_ops;
int (*finalise_stage_fn)(struct arm_smmu_device *smmu,
- struct arm_smmu_domain *smmu_domain,
- struct io_pgtable_cfg *pgtbl_cfg);
+ struct arm_smmu_domain *smmu_domain);
/* Restrict the stage to what we can actually support */
if (!(smmu->features & ARM_SMMU_FEAT_TRANS_S1))
@@ -2400,7 +2389,7 @@ static int arm_smmu_domain_finalise(struct arm_smmu_domain *smmu_domain,
smmu_domain->domain.geometry.aperture_end = (1UL << pgtbl_cfg.ias) - 1;
smmu_domain->domain.geometry.force_aperture = true;
- ret = finalise_stage_fn(smmu, smmu_domain, &pgtbl_cfg);
+ ret = finalise_stage_fn(smmu, smmu_domain);
if (ret < 0) {
free_io_pgtable_ops(pgtbl_ops);
return ret;
@@ -587,9 +587,6 @@ struct arm_smmu_strtab_l1_desc {
struct arm_smmu_ctx_desc {
u16 asid;
- u64 ttbr;
- u64 tcr;
- u64 mair;
refcount_t refs;
struct mm_struct *mm;
Half the code was living in arm_smmu_domain_finalise_s1(), just move it here and take the values directly from the pgtbl_ops instead of storing copies. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 47 ++++++++------------- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 3 -- 2 files changed, 18 insertions(+), 32 deletions(-)