The CMDQV extension in NVIDIA Grace SoC resues the arm_smmu_cmdq structure while the queue location isn't same as smmu->cmdq. So, this patch adds a cmdq argument to arm_smmu_cmdq_init() function and shares its define in the header for CMDQV driver to use.
Signed-off-by: Nicolin Chen <[email protected]> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 6 +++--- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 2 ++ 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index e6fee69dd79c..6be20e926f63 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2922,10 +2922,10 @@ static void arm_smmu_cmdq_free_bitmap(void *data) bitmap_free(bitmap); } -static int arm_smmu_cmdq_init(struct arm_smmu_device *smmu) +int arm_smmu_cmdq_init(struct arm_smmu_device *smmu, + struct arm_smmu_cmdq *cmdq) { int ret = 0; - struct arm_smmu_cmdq *cmdq = &smmu->cmdq; unsigned int nents = 1 << cmdq->q.llq.max_n_shift; atomic_long_t *bitmap; @@ -2955,7 +2955,7 @@ static int arm_smmu_init_queues(struct arm_smmu_device *smmu) if (ret) return ret; - ret = arm_smmu_cmdq_init(smmu); + ret = arm_smmu_cmdq_init(smmu, &smmu->cmdq); if (ret) return ret; diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h index 7a6a6045700d..475f004ccbe4 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h @@ -751,6 +751,8 @@ void arm_smmu_tlb_inv_range_asid(unsigned long iova, size_t size, int asid, bool arm_smmu_free_asid(struct arm_smmu_ctx_desc *cd); int arm_smmu_atc_inv_domain(struct arm_smmu_domain *smmu_domain, int ssid, unsigned long iova, size_t size); +int arm_smmu_cmdq_init(struct arm_smmu_device *smmu, + struct arm_smmu_cmdq *cmdq); #ifdef CONFIG_ARM_SMMU_V3_SVA bool arm_smmu_sva_supported(struct arm_smmu_device *smmu); -- 2.17.1 _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
