| Message ID | 25150aec77edf5590bca81f4a418ef1ee7b21952.1714451595.git.nicolinc@nvidia.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add Tegra241 (Grace) CMDQV Support (part 1/2) | expand |
On Mon, Apr 29, 2024 at 09:43:47PM -0700, Nicolin Chen wrote: > Allow __arm_smmu_cmdq_skip_err function to be reused by NVIDIA Tegra241 > CMDQV unit since it will use the same data structure for q. And include > the CMDQ_QUIRK_SYNC_CS_NONE_ONLY quirk when inserting a CMD_SYNC. > > Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> > --- > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 7 +++++-- > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 2 ++ > 2 files changed, 7 insertions(+), 2 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 538850059bdd..5111859347d5 100644 > --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c > +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c > @@ -379,8 +379,8 @@ static void arm_smmu_cmdq_build_sync_cmd(u64 *cmd, struct arm_smmu_device *smmu, > arm_smmu_cmdq_build_cmd(cmd, &ent); > } > > -static void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, > - struct arm_smmu_queue *q) > +void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, > + struct arm_smmu_queue *q) > { > static const char * const cerror_str[] = { > [CMDQ_ERR_CERROR_NONE_IDX] = "No error", > @@ -428,6 +428,9 @@ static void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, > for (i = 0; i < ARRAY_SIZE(cmd); ++i) > dev_err(smmu->dev, "\t0x%016llx\n", (unsigned long long)cmd[i]); > > + if (q->quirks & CMDQ_QUIRK_SYNC_CS_NONE_ONLY) > + cmd_sync.sync.cs_none = true; This hunk should be in "iommu/arm-smmu-v3: Add CS_NONE quirk" ? Jason
On Tue, Apr 30, 2024 at 11:06:00AM -0300, Jason Gunthorpe wrote: > On Mon, Apr 29, 2024 at 09:43:47PM -0700, Nicolin Chen wrote: > > Allow __arm_smmu_cmdq_skip_err function to be reused by NVIDIA Tegra241 > > CMDQV unit since it will use the same data structure for q. And include > > the CMDQ_QUIRK_SYNC_CS_NONE_ONLY quirk when inserting a CMD_SYNC. > > > > Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> > > --- > > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 7 +++++-- > > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 2 ++ > > 2 files changed, 7 insertions(+), 2 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 538850059bdd..5111859347d5 100644 > > --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c > > +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c > > @@ -379,8 +379,8 @@ static void arm_smmu_cmdq_build_sync_cmd(u64 *cmd, struct arm_smmu_device *smmu, > > arm_smmu_cmdq_build_cmd(cmd, &ent); > > } > > > > -static void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, > > - struct arm_smmu_queue *q) > > +void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, > > + struct arm_smmu_queue *q) > > { > > static const char * const cerror_str[] = { > > [CMDQ_ERR_CERROR_NONE_IDX] = "No error", > > @@ -428,6 +428,9 @@ static void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, > > for (i = 0; i < ARRAY_SIZE(cmd); ++i) > > dev_err(smmu->dev, "\t0x%016llx\n", (unsigned long long)cmd[i]); > > > > + if (q->quirks & CMDQ_QUIRK_SYNC_CS_NONE_ONLY) > > + cmd_sync.sync.cs_none = true; > > This hunk should be in "iommu/arm-smmu-v3: Add CS_NONE quirk" ? Oh, yea. Will move it. Thanks! Nicolin
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 538850059bdd..5111859347d5 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -379,8 +379,8 @@ static void arm_smmu_cmdq_build_sync_cmd(u64 *cmd, struct arm_smmu_device *smmu, arm_smmu_cmdq_build_cmd(cmd, &ent); } -static void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, - struct arm_smmu_queue *q) +void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, + struct arm_smmu_queue *q) { static const char * const cerror_str[] = { [CMDQ_ERR_CERROR_NONE_IDX] = "No error", @@ -428,6 +428,9 @@ static void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, for (i = 0; i < ARRAY_SIZE(cmd); ++i) dev_err(smmu->dev, "\t0x%016llx\n", (unsigned long long)cmd[i]); + if (q->quirks & CMDQ_QUIRK_SYNC_CS_NONE_ONLY) + cmd_sync.sync.cs_none = true; + /* Convert the erroneous command into a CMD_SYNC */ arm_smmu_cmdq_build_cmd(cmd, &cmd_sync); 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 ab2824e46ac5..32e7fc5e1794 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h @@ -762,6 +762,8 @@ int arm_smmu_atc_inv_domain(struct arm_smmu_domain *smmu_domain, int ssid, int arm_smmu_cmdq_init(struct arm_smmu_device *smmu, struct arm_smmu_cmdq *cmdq); +void __arm_smmu_cmdq_skip_err(struct arm_smmu_device *smmu, + struct arm_smmu_queue *q); #ifdef CONFIG_ARM_SMMU_V3_SVA bool arm_smmu_sva_supported(struct arm_smmu_device *smmu);
Allow __arm_smmu_cmdq_skip_err function to be reused by NVIDIA Tegra241 CMDQV unit since it will use the same data structure for q. And include the CMDQ_QUIRK_SYNC_CS_NONE_ONLY quirk when inserting a CMD_SYNC. Signed-off-by: Nicolin Chen <nicolinc@nvidia.com> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 7 +++++-- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 2 ++ 2 files changed, 7 insertions(+), 2 deletions(-)