From 2ea1f0120f900b2643afc71cc6bf5bab52df27d8 Mon Sep 17 00:00:00 2001 From: Nicolin Chen Date: Thu, 29 Aug 2024 15:34:31 -0700 Subject: [PATCH] iommu/arm-smmu-v3: Pass in cmdq pointer to arm_smmu_cmdq_build_sync_cmd The CMDQV extension on NVIDIA Tegra241 SoC only supports CS_NONE in the CS field of CMD_SYNC, v.s. standard SMMU CMDQ. Pass in the cmdq pointer directly, so the function can identify a different cmdq implementation. Reviewed-by: Jason Gunthorpe Signed-off-by: Nicolin Chen Link: https://lore.kernel.org/r/723288287997b6dfbcd2a904d2c11e9b23f82250.1724970714.git.nicolinc@nvidia.com Signed-off-by: Will Deacon --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 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 7213ec538887b..4a28cd2dc47a8 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -352,8 +352,9 @@ static struct arm_smmu_cmdq *arm_smmu_get_cmdq(struct arm_smmu_device *smmu) } static void arm_smmu_cmdq_build_sync_cmd(u64 *cmd, struct arm_smmu_device *smmu, - struct arm_smmu_queue *q, u32 prod) + struct arm_smmu_cmdq *cmdq, u32 prod) { + struct arm_smmu_queue *q = &cmdq->q; struct arm_smmu_cmdq_ent ent = { .opcode = CMDQ_OP_CMD_SYNC, }; @@ -371,7 +372,7 @@ static void arm_smmu_cmdq_build_sync_cmd(u64 *cmd, struct arm_smmu_device *smmu, } static void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, - struct arm_smmu_queue *q) + struct arm_smmu_cmdq *cmdq) { static const char * const cerror_str[] = { [CMDQ_ERR_CERROR_NONE_IDX] = "No error", @@ -379,6 +380,7 @@ static void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, [CMDQ_ERR_CERROR_ABT_IDX] = "Abort on command fetch", [CMDQ_ERR_CERROR_ATC_INV_IDX] = "ATC invalidate timeout", }; + struct arm_smmu_queue *q = &cmdq->q; int i; u64 cmd[CMDQ_ENT_DWORDS]; @@ -427,7 +429,7 @@ static void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, static void arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu) { - __arm_smmu_cmdq_skip_err(smmu, &smmu->cmdq.q); + __arm_smmu_cmdq_skip_err(smmu, &smmu->cmdq); } /* @@ -790,7 +792,7 @@ static int arm_smmu_cmdq_issue_cmdlist(struct arm_smmu_device *smmu, arm_smmu_cmdq_write_entries(cmdq, cmds, llq.prod, n); if (sync) { prod = queue_inc_prod_n(&llq, n); - arm_smmu_cmdq_build_sync_cmd(cmd_sync, smmu, &cmdq->q, prod); + arm_smmu_cmdq_build_sync_cmd(cmd_sync, smmu, cmdq, prod); queue_write(Q_ENT(&cmdq->q, prod), cmd_sync, CMDQ_ENT_DWORDS); /*