| Message ID | 20240628140435.1652374-5-quic_bibekkum@quicinc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | iommu/arm-smmu: introduction of ACTLR implementation for Qualcomm SoCs | expand |
On Fri, Jun 28, 2024 at 07:34:33PM GMT, Bibek Kumar Patro wrote: > Add ACTLR data table for SM8550 along with support for > same including SM8550 specific implementation operations. > > Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com> > --- > drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 89 ++++++++++++++++++++++ > 1 file changed, 89 insertions(+) > > diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > index 77c9abffe07d..b4521471ffe9 100644 > --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > @@ -23,6 +23,85 @@ > > #define CPRE (1 << 1) > #define CMTLB (1 << 0) > +#define PREFETCH_SHIFT 8 > +#define PREFETCH_DEFAULT 0 > +#define PREFETCH_SHALLOW (1 << PREFETCH_SHIFT) > +#define PREFETCH_MODERATE (2 << PREFETCH_SHIFT) > +#define PREFETCH_DEEP (3 << PREFETCH_SHIFT) > + > +static const struct actlr_config sm8550_apps_actlr_cfg[] = { > + { 0x18a0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x18e0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x0800, 0x0020, PREFETCH_DEFAULT | CMTLB }, > + { 0x1800, 0x00c0, PREFETCH_DEFAULT | CMTLB }, > + { 0x1820, 0x0000, PREFETCH_DEFAULT | CMTLB }, > + { 0x1860, 0x0000, PREFETCH_DEFAULT | CMTLB }, > + { 0x0c01, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, - Please keep the list sorted - Please comment, which devices use these settings. > + { 0x0c02, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c03, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c04, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c05, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c06, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c07, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c08, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c09, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c0c, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c0d, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c0e, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x0c0f, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1961, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1962, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1963, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1964, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1965, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1966, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1967, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1968, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1969, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x196c, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x196d, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x196e, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x196f, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19c1, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19c2, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19c3, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19c4, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19c5, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19c6, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19c7, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19c8, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19c9, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19cc, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19cd, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19ce, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x19cf, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > + { 0x1c00, 0x0002, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x1c01, 0x0000, PREFETCH_DEFAULT | CMTLB }, > + { 0x1920, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x1923, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x1924, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x1940, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x1941, 0x0004, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x1943, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x1944, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > + { 0x1947, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > +}; > + > +static const struct actlr_config sm8550_gfx_actlr_cfg[] = { > + { 0x0000, 0x03ff, PREFETCH_DEEP | CPRE | CMTLB }, > +}; > + > +static const struct actlr_variant sm8550_actlr[] = { > + { > + .io_start = 0x15000000, > + .actlrcfg = sm8550_apps_actlr_cfg, > + .num_actlrcfg = ARRAY_SIZE(sm8550_apps_actlr_cfg) > + }, { > + .io_start = 0x03da0000, > + .actlrcfg = sm8550_gfx_actlr_cfg, > + .num_actlrcfg = ARRAY_SIZE(sm8550_gfx_actlr_cfg) > + }, > +}; > > static struct qcom_smmu *to_qcom_smmu(struct arm_smmu_device *smmu) > { > @@ -606,6 +685,15 @@ static const struct qcom_smmu_match_data sdm845_smmu_500_data = { > /* Also no debug configuration. */ > }; > > + > +static const struct qcom_smmu_match_data sm8550_smmu_500_impl0_data = { > + .impl = &qcom_smmu_500_impl, > + .adreno_impl = &qcom_adreno_smmu_500_impl, > + .cfg = &qcom_smmu_impl0_cfg, > + .actlrvar = sm8550_actlr, > + .num_smmu = ARRAY_SIZE(sm8550_actlr), > +}; > + > static const struct qcom_smmu_match_data qcom_smmu_500_impl0_data = { > .impl = &qcom_smmu_500_impl, > .adreno_impl = &qcom_adreno_smmu_500_impl, > @@ -640,6 +728,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { > { .compatible = "qcom,sm8250-smmu-500", .data = &qcom_smmu_500_impl0_data }, > { .compatible = "qcom,sm8350-smmu-500", .data = &qcom_smmu_500_impl0_data }, > { .compatible = "qcom,sm8450-smmu-500", .data = &qcom_smmu_500_impl0_data }, > + { .compatible = "qcom,sm8550-smmu-500", .data = &sm8550_smmu_500_impl0_data }, > { .compatible = "qcom,smmu-500", .data = &qcom_smmu_500_impl0_data }, > { } > }; > -- > 2.34.1 >
On 7/2/2024 12:04 AM, Dmitry Baryshkov wrote: > On Fri, Jun 28, 2024 at 07:34:33PM GMT, Bibek Kumar Patro wrote: >> Add ACTLR data table for SM8550 along with support for >> same including SM8550 specific implementation operations. >> >> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com> >> --- >> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 89 ++++++++++++++++++++++ >> 1 file changed, 89 insertions(+) >> >> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c >> index 77c9abffe07d..b4521471ffe9 100644 >> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c >> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c >> @@ -23,6 +23,85 @@ >> >> #define CPRE (1 << 1) >> #define CMTLB (1 << 0) >> +#define PREFETCH_SHIFT 8 >> +#define PREFETCH_DEFAULT 0 >> +#define PREFETCH_SHALLOW (1 << PREFETCH_SHIFT) >> +#define PREFETCH_MODERATE (2 << PREFETCH_SHIFT) >> +#define PREFETCH_DEEP (3 << PREFETCH_SHIFT) >> + >> +static const struct actlr_config sm8550_apps_actlr_cfg[] = { >> + { 0x18a0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x18e0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x0800, 0x0020, PREFETCH_DEFAULT | CMTLB }, >> + { 0x1800, 0x00c0, PREFETCH_DEFAULT | CMTLB }, >> + { 0x1820, 0x0000, PREFETCH_DEFAULT | CMTLB }, >> + { 0x1860, 0x0000, PREFETCH_DEFAULT | CMTLB }, >> + { 0x0c01, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > > - Please keep the list sorted Sure Dmitry, will sort this list in reverse-christmas-tree order in next iteration. Thanks for this input. > - Please comment, which devices use these settings. As discussed in earlier versions of this patch, these table entries are kind of just blind values for SMMU device, where SMMU do not have idea on which SID belong to which client. During probe time when the clients' Stream-ID has corresponding ACTLR entry then the driver would set value in register. Also some might have their prefetch settings as proprietary. Hence did not add the comments for device using these settings. Thanks & regards, Bibek > >> + { 0x0c02, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c03, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c04, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c05, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c06, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c07, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c08, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c09, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c0c, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c0d, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c0e, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x0c0f, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1961, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1962, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1963, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1964, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1965, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1966, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1967, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1968, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1969, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x196c, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x196d, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x196e, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x196f, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19c1, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19c2, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19c3, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19c4, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19c5, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19c6, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19c7, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19c8, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19c9, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19cc, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19cd, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19ce, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x19cf, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >> + { 0x1c00, 0x0002, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x1c01, 0x0000, PREFETCH_DEFAULT | CMTLB }, >> + { 0x1920, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x1923, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x1924, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x1940, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x1941, 0x0004, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x1943, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x1944, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >> + { 0x1947, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >> +}; >> + >> +static const struct actlr_config sm8550_gfx_actlr_cfg[] = { >> + { 0x0000, 0x03ff, PREFETCH_DEEP | CPRE | CMTLB }, >> +}; >> + >> +static const struct actlr_variant sm8550_actlr[] = { >> + { >> + .io_start = 0x15000000, >> + .actlrcfg = sm8550_apps_actlr_cfg, >> + .num_actlrcfg = ARRAY_SIZE(sm8550_apps_actlr_cfg) >> + }, { >> + .io_start = 0x03da0000, >> + .actlrcfg = sm8550_gfx_actlr_cfg, >> + .num_actlrcfg = ARRAY_SIZE(sm8550_gfx_actlr_cfg) >> + }, >> +}; >> >> static struct qcom_smmu *to_qcom_smmu(struct arm_smmu_device *smmu) >> { >> @@ -606,6 +685,15 @@ static const struct qcom_smmu_match_data sdm845_smmu_500_data = { >> /* Also no debug configuration. */ >> }; >> >> + >> +static const struct qcom_smmu_match_data sm8550_smmu_500_impl0_data = { >> + .impl = &qcom_smmu_500_impl, >> + .adreno_impl = &qcom_adreno_smmu_500_impl, >> + .cfg = &qcom_smmu_impl0_cfg, >> + .actlrvar = sm8550_actlr, >> + .num_smmu = ARRAY_SIZE(sm8550_actlr), >> +}; >> + >> static const struct qcom_smmu_match_data qcom_smmu_500_impl0_data = { >> .impl = &qcom_smmu_500_impl, >> .adreno_impl = &qcom_adreno_smmu_500_impl, >> @@ -640,6 +728,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { >> { .compatible = "qcom,sm8250-smmu-500", .data = &qcom_smmu_500_impl0_data }, >> { .compatible = "qcom,sm8350-smmu-500", .data = &qcom_smmu_500_impl0_data }, >> { .compatible = "qcom,sm8450-smmu-500", .data = &qcom_smmu_500_impl0_data }, >> + { .compatible = "qcom,sm8550-smmu-500", .data = &sm8550_smmu_500_impl0_data }, >> { .compatible = "qcom,smmu-500", .data = &qcom_smmu_500_impl0_data }, >> { } >> }; >> -- >> 2.34.1 >> >
On Wed, Jul 03, 2024 at 05:45:23PM +0530, Bibek Kumar Patro wrote: > > > On 7/2/2024 12:04 AM, Dmitry Baryshkov wrote: > > On Fri, Jun 28, 2024 at 07:34:33PM GMT, Bibek Kumar Patro wrote: > > > Add ACTLR data table for SM8550 along with support for > > > same including SM8550 specific implementation operations. > > > > > > Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com> > > > --- > > > drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 89 ++++++++++++++++++++++ > > > 1 file changed, 89 insertions(+) > > > > > > diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > > > index 77c9abffe07d..b4521471ffe9 100644 > > > --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > > > +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > > > @@ -23,6 +23,85 @@ > > > > > > #define CPRE (1 << 1) > > > #define CMTLB (1 << 0) > > > +#define PREFETCH_SHIFT 8 > > > +#define PREFETCH_DEFAULT 0 > > > +#define PREFETCH_SHALLOW (1 << PREFETCH_SHIFT) > > > +#define PREFETCH_MODERATE (2 << PREFETCH_SHIFT) > > > +#define PREFETCH_DEEP (3 << PREFETCH_SHIFT) > > > + > > > +static const struct actlr_config sm8550_apps_actlr_cfg[] = { > > > + { 0x18a0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > > > + { 0x18e0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > > > + { 0x0800, 0x0020, PREFETCH_DEFAULT | CMTLB }, > > > + { 0x1800, 0x00c0, PREFETCH_DEFAULT | CMTLB }, > > > + { 0x1820, 0x0000, PREFETCH_DEFAULT | CMTLB }, > > > + { 0x1860, 0x0000, PREFETCH_DEFAULT | CMTLB }, > > > + { 0x0c01, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > > > > - Please keep the list sorted > > Sure Dmitry, will sort this list in reverse-christmas-tree order > in next iteration. Thanks for this input. > > > - Please comment, which devices use these settings. > > As discussed in earlier versions of this patch, these table entries > are kind of just blind values for SMMU device, where SMMU do not have > idea on which SID belong to which client. During probe time when the > clients' Stream-ID has corresponding ACTLR entry then the driver would > set value in register. I'm still firmly of the opinion that this stuff needs a higher-level description in the device-tree and should not be hard-coded in the driver like this. It's not just a list of opaque values; it describes SoC-specific topological information that should not be this rigid. Will
On 7/3/2024 6:32 PM, Will Deacon wrote: > On Wed, Jul 03, 2024 at 05:45:23PM +0530, Bibek Kumar Patro wrote: >> >> >> On 7/2/2024 12:04 AM, Dmitry Baryshkov wrote: >>> On Fri, Jun 28, 2024 at 07:34:33PM GMT, Bibek Kumar Patro wrote: >>>> Add ACTLR data table for SM8550 along with support for >>>> same including SM8550 specific implementation operations. >>>> >>>> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com> >>>> --- >>>> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 89 ++++++++++++++++++++++ >>>> 1 file changed, 89 insertions(+) >>>> >>>> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c >>>> index 77c9abffe07d..b4521471ffe9 100644 >>>> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c >>>> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c >>>> @@ -23,6 +23,85 @@ >>>> >>>> #define CPRE (1 << 1) >>>> #define CMTLB (1 << 0) >>>> +#define PREFETCH_SHIFT 8 >>>> +#define PREFETCH_DEFAULT 0 >>>> +#define PREFETCH_SHALLOW (1 << PREFETCH_SHIFT) >>>> +#define PREFETCH_MODERATE (2 << PREFETCH_SHIFT) >>>> +#define PREFETCH_DEEP (3 << PREFETCH_SHIFT) >>>> + >>>> +static const struct actlr_config sm8550_apps_actlr_cfg[] = { >>>> + { 0x18a0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x18e0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x0800, 0x0020, PREFETCH_DEFAULT | CMTLB }, >>>> + { 0x1800, 0x00c0, PREFETCH_DEFAULT | CMTLB }, >>>> + { 0x1820, 0x0000, PREFETCH_DEFAULT | CMTLB }, >>>> + { 0x1860, 0x0000, PREFETCH_DEFAULT | CMTLB }, >>>> + { 0x0c01, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>> >>> - Please keep the list sorted >> >> Sure Dmitry, will sort this list in reverse-christmas-tree order >> in next iteration. Thanks for this input. >> >>> - Please comment, which devices use these settings. >> >> As discussed in earlier versions of this patch, these table entries >> are kind of just blind values for SMMU device, where SMMU do not have >> idea on which SID belong to which client. During probe time when the >> clients' Stream-ID has corresponding ACTLR entry then the driver would >> set value in register. > > I'm still firmly of the opinion that this stuff needs a higher-level > description in the device-tree and should not be hard-coded in the driver > like this. It's not just a list of opaque values; it describes > SoC-specific topological information that should not be this rigid. > As per my understanding since ACTLR register is an implementation defined register, so I think the placement can also depend on factor of how these registers are used? For Qualcomm SoCs, it stores prefetch values for each client, improving performance without defining hardware design. Even without setting this value, clients on these Stream-IDs would still function, albeit with reduced performance. The SteamID/Mask pair in first two columns <which is a SoC topology> is only used as reference to find preferred prefetch setting for the corresponding client on this StreamID To refer initial discussion and Robin's thoughts on device-tree approach for this property which we proposed as a part of RFC: https://lore.kernel.org/all/a01e7e60-6ead-4a9e-ba90-22a8a6bbd03f@quicinc.com/ " On 9/18/2023 4:49 PM, Robin Murphy wrote: " > > At the very least this would need to be in a implementation-specific > backend, since everything about ACTLR is implementation-defined; there > could be bits in there that the driver needs to manage itself and > clients have absolutely no business overriding (e.g. the MMU-500 errata > workarounds). The generic driver can't know what's valid, nor what the > consequences are of not being able to satisfy a particular setting. Then > there's still the question of what if two clients ask for different > settings but want to attach to the same context? > > It's also questionable whether this would belong in DT at all, since it > has a bit of a smell of software policv about it. > > If it could be > sufficiently justified then it would need a proper binding proposal, and > "write this opaque value into this register" type properties are > generally not approved of. > > Thanks, > Robin. > So as per the initial discussions it felt right to have this data stored inside driver. One potential downside is that the driver file could become cluttered with this data, but this can be mitigated by storing the table in a separate file if necessary. For use cases or vendor that implement the ACTLR register differently, deeply involving SoC topology values or defining hardware design (something similar to Stream Matching Register),then it might be more appropriate to place it in the devicetree? This is just my understanding. I’d appreciate your further thoughts on this - Will, Robin, Dmitry, Rob. Thanks & regards, Bibek > Will
On Wed, 3 Jul 2024 at 15:15, Bibek Kumar Patro <quic_bibekkum@quicinc.com> wrote: > > > > On 7/2/2024 12:04 AM, Dmitry Baryshkov wrote: > > On Fri, Jun 28, 2024 at 07:34:33PM GMT, Bibek Kumar Patro wrote: > >> Add ACTLR data table for SM8550 along with support for > >> same including SM8550 specific implementation operations. > >> > >> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com> > >> --- > >> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 89 ++++++++++++++++++++++ > >> 1 file changed, 89 insertions(+) > >> > >> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > >> index 77c9abffe07d..b4521471ffe9 100644 > >> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > >> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > >> @@ -23,6 +23,85 @@ > >> > >> #define CPRE (1 << 1) > >> #define CMTLB (1 << 0) > >> +#define PREFETCH_SHIFT 8 > >> +#define PREFETCH_DEFAULT 0 > >> +#define PREFETCH_SHALLOW (1 << PREFETCH_SHIFT) > >> +#define PREFETCH_MODERATE (2 << PREFETCH_SHIFT) > >> +#define PREFETCH_DEEP (3 << PREFETCH_SHIFT) > >> + > >> +static const struct actlr_config sm8550_apps_actlr_cfg[] = { > >> + { 0x18a0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x18e0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x0800, 0x0020, PREFETCH_DEFAULT | CMTLB }, > >> + { 0x1800, 0x00c0, PREFETCH_DEFAULT | CMTLB }, > >> + { 0x1820, 0x0000, PREFETCH_DEFAULT | CMTLB }, > >> + { 0x1860, 0x0000, PREFETCH_DEFAULT | CMTLB }, > >> + { 0x0c01, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > > > > - Please keep the list sorted > > Sure Dmitry, will sort this list in reverse-christmas-tree order > in next iteration. Thanks for this input. Why? Just sort basing on SID. > > > - Please comment, which devices use these settings. > > As discussed in earlier versions of this patch, these table entries > are kind of just blind values for SMMU device, where SMMU do not have > idea on which SID belong to which client. During probe time when the > clients' Stream-ID has corresponding ACTLR entry then the driver would > set value in register. > Also some might have their prefetch settings as proprietary. > Hence did not add the comments for device using these settings. Please mention devices that are going to use the SIDs. > > > Thanks & regards, > Bibek > > > > >> + { 0x0c02, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c03, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c04, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c05, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c06, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c07, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c08, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c09, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c0c, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c0d, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c0e, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x0c0f, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1961, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1962, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1963, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1964, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1965, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1966, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1967, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1968, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1969, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x196c, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x196d, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x196e, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x196f, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19c1, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19c2, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19c3, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19c4, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19c5, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19c6, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19c7, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19c8, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19c9, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19cc, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19cd, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19ce, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x19cf, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, > >> + { 0x1c00, 0x0002, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x1c01, 0x0000, PREFETCH_DEFAULT | CMTLB }, > >> + { 0x1920, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x1923, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x1924, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x1940, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x1941, 0x0004, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x1943, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x1944, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> + { 0x1947, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >> +}; > >> + > >> +static const struct actlr_config sm8550_gfx_actlr_cfg[] = { > >> + { 0x0000, 0x03ff, PREFETCH_DEEP | CPRE | CMTLB }, > >> +}; > >> + > >> +static const struct actlr_variant sm8550_actlr[] = { > >> + { > >> + .io_start = 0x15000000, > >> + .actlrcfg = sm8550_apps_actlr_cfg, > >> + .num_actlrcfg = ARRAY_SIZE(sm8550_apps_actlr_cfg) > >> + }, { > >> + .io_start = 0x03da0000, > >> + .actlrcfg = sm8550_gfx_actlr_cfg, > >> + .num_actlrcfg = ARRAY_SIZE(sm8550_gfx_actlr_cfg) > >> + }, > >> +}; > >> > >> static struct qcom_smmu *to_qcom_smmu(struct arm_smmu_device *smmu) > >> { > >> @@ -606,6 +685,15 @@ static const struct qcom_smmu_match_data sdm845_smmu_500_data = { > >> /* Also no debug configuration. */ > >> }; > >> > >> + > >> +static const struct qcom_smmu_match_data sm8550_smmu_500_impl0_data = { > >> + .impl = &qcom_smmu_500_impl, > >> + .adreno_impl = &qcom_adreno_smmu_500_impl, > >> + .cfg = &qcom_smmu_impl0_cfg, > >> + .actlrvar = sm8550_actlr, > >> + .num_smmu = ARRAY_SIZE(sm8550_actlr), > >> +}; > >> + > >> static const struct qcom_smmu_match_data qcom_smmu_500_impl0_data = { > >> .impl = &qcom_smmu_500_impl, > >> .adreno_impl = &qcom_adreno_smmu_500_impl, > >> @@ -640,6 +728,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { > >> { .compatible = "qcom,sm8250-smmu-500", .data = &qcom_smmu_500_impl0_data }, > >> { .compatible = "qcom,sm8350-smmu-500", .data = &qcom_smmu_500_impl0_data }, > >> { .compatible = "qcom,sm8450-smmu-500", .data = &qcom_smmu_500_impl0_data }, > >> + { .compatible = "qcom,sm8550-smmu-500", .data = &sm8550_smmu_500_impl0_data }, > >> { .compatible = "qcom,smmu-500", .data = &qcom_smmu_500_impl0_data }, > >> { } > >> }; > >> -- > >> 2.34.1 > >> > > -- With best wishes Dmitry
On Thu, 4 Jul 2024 at 12:12, Bibek Kumar Patro <quic_bibekkum@quicinc.com> wrote: > > > > On 7/3/2024 6:32 PM, Will Deacon wrote: > > On Wed, Jul 03, 2024 at 05:45:23PM +0530, Bibek Kumar Patro wrote: > >> > >> > >> On 7/2/2024 12:04 AM, Dmitry Baryshkov wrote: > >>> On Fri, Jun 28, 2024 at 07:34:33PM GMT, Bibek Kumar Patro wrote: > >>>> Add ACTLR data table for SM8550 along with support for > >>>> same including SM8550 specific implementation operations. > >>>> > >>>> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com> > >>>> --- > >>>> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 89 ++++++++++++++++++++++ > >>>> 1 file changed, 89 insertions(+) > >>>> > >>>> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > >>>> index 77c9abffe07d..b4521471ffe9 100644 > >>>> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > >>>> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c > >>>> @@ -23,6 +23,85 @@ > >>>> > >>>> #define CPRE (1 << 1) > >>>> #define CMTLB (1 << 0) > >>>> +#define PREFETCH_SHIFT 8 > >>>> +#define PREFETCH_DEFAULT 0 > >>>> +#define PREFETCH_SHALLOW (1 << PREFETCH_SHIFT) > >>>> +#define PREFETCH_MODERATE (2 << PREFETCH_SHIFT) > >>>> +#define PREFETCH_DEEP (3 << PREFETCH_SHIFT) > >>>> + > >>>> +static const struct actlr_config sm8550_apps_actlr_cfg[] = { > >>>> + { 0x18a0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >>>> + { 0x18e0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, > >>>> + { 0x0800, 0x0020, PREFETCH_DEFAULT | CMTLB }, > >>>> + { 0x1800, 0x00c0, PREFETCH_DEFAULT | CMTLB }, > >>>> + { 0x1820, 0x0000, PREFETCH_DEFAULT | CMTLB }, > >>>> + { 0x1860, 0x0000, PREFETCH_DEFAULT | CMTLB }, > >>>> + { 0x0c01, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, > >>> > >>> - Please keep the list sorted > >> > >> Sure Dmitry, will sort this list in reverse-christmas-tree order > >> in next iteration. Thanks for this input. > >> > >>> - Please comment, which devices use these settings. > >> > >> As discussed in earlier versions of this patch, these table entries > >> are kind of just blind values for SMMU device, where SMMU do not have > >> idea on which SID belong to which client. During probe time when the > >> clients' Stream-ID has corresponding ACTLR entry then the driver would > >> set value in register. > > > > I'm still firmly of the opinion that this stuff needs a higher-level > > description in the device-tree and should not be hard-coded in the driver > > like this. It's not just a list of opaque values; it describes > > SoC-specific topological information that should not be this rigid. > > > > As per my understanding since ACTLR register is an implementation > defined register, > so I think the placement can also depend on factor of how these > registers are used? > > For Qualcomm SoCs, it stores prefetch values for each client, improving > performance without defining hardware design. > Even without setting this value, clients on these Stream-IDs would still > function, albeit with reduced performance. > > The SteamID/Mask pair in first two columns <which is a SoC topology> is > only used as reference to find preferred prefetch setting for the > corresponding client on this StreamID > > To refer initial discussion and Robin's thoughts on device-tree approach > for this property which we proposed as a part of RFC: > https://lore.kernel.org/all/a01e7e60-6ead-4a9e-ba90-22a8a6bbd03f@quicinc.com/ > > " On 9/18/2023 4:49 PM, Robin Murphy wrote: " > > > > At the very least this would need to be in a implementation-specific > > backend, since everything about ACTLR is implementation-defined; there > > could be bits in there that the driver needs to manage itself and > > clients have absolutely no business overriding (e.g. the MMU-500 errata > > workarounds). The generic driver can't know what's valid, nor what the > > consequences are of not being able to satisfy a particular setting. Then > > there's still the question of what if two clients ask for different > > settings but want to attach to the same context? > > > > It's also questionable whether this would belong in DT at all, since it > > has a bit of a smell of software policv about it. > > > > If it could be > > sufficiently justified then it would need a proper binding proposal, and > > "write this opaque value into this register" type properties are > > generally not approved of. > > > > Thanks, > > Robin. > > > > So as per the initial discussions it felt right to have this data stored > inside driver. > One potential downside is that the driver file could become cluttered > with this data, but this can be mitigated by storing the table in a > separate file if necessary. > > For use cases or vendor that implement the ACTLR register differently, > deeply involving SoC topology values or defining hardware design > (something similar to Stream Matching Register),then it might be more > appropriate to place it in the devicetree? > > This is just my understanding. I’d appreciate your further thoughts on > this - Will, Robin, Dmitry, Rob. My understanding was that DT should be a place for variable information. In this case the mapping between Stream-IDs and the corresponding register programming is more or less fixed for a particular Soc. Probably the only way this can be handled outside of the driver is by increasing #iommu-cells and encoding these values in this extra IOMMU cell.
On 7/4/2024 4:53 PM, Dmitry Baryshkov wrote: > On Wed, 3 Jul 2024 at 15:15, Bibek Kumar Patro > <quic_bibekkum@quicinc.com> wrote: >> >> >> >> On 7/2/2024 12:04 AM, Dmitry Baryshkov wrote: >>> On Fri, Jun 28, 2024 at 07:34:33PM GMT, Bibek Kumar Patro wrote: >>>> Add ACTLR data table for SM8550 along with support for >>>> same including SM8550 specific implementation operations. >>>> >>>> Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com> >>>> --- >>>> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 89 ++++++++++++++++++++++ >>>> 1 file changed, 89 insertions(+) >>>> >>>> diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c >>>> index 77c9abffe07d..b4521471ffe9 100644 >>>> --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c >>>> +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c >>>> @@ -23,6 +23,85 @@ >>>> >>>> #define CPRE (1 << 1) >>>> #define CMTLB (1 << 0) >>>> +#define PREFETCH_SHIFT 8 >>>> +#define PREFETCH_DEFAULT 0 >>>> +#define PREFETCH_SHALLOW (1 << PREFETCH_SHIFT) >>>> +#define PREFETCH_MODERATE (2 << PREFETCH_SHIFT) >>>> +#define PREFETCH_DEEP (3 << PREFETCH_SHIFT) >>>> + >>>> +static const struct actlr_config sm8550_apps_actlr_cfg[] = { >>>> + { 0x18a0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x18e0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x0800, 0x0020, PREFETCH_DEFAULT | CMTLB }, >>>> + { 0x1800, 0x00c0, PREFETCH_DEFAULT | CMTLB }, >>>> + { 0x1820, 0x0000, PREFETCH_DEFAULT | CMTLB }, >>>> + { 0x1860, 0x0000, PREFETCH_DEFAULT | CMTLB }, >>>> + { 0x0c01, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>> >>> - Please keep the list sorted >> >> Sure Dmitry, will sort this list in reverse-christmas-tree order >> in next iteration. Thanks for this input. > > Why? Just sort basing on SID. > Apologies for delayed response. It's initially sorted based on SID only, but as I see few of them are not which you're pointing to. I will check the table again and sort the SIDs which are left unsorted. >> >>> - Please comment, which devices use these settings. >> >> As discussed in earlier versions of this patch, these table entries >> are kind of just blind values for SMMU device, where SMMU do not have >> idea on which SID belong to which client. During probe time when the >> clients' Stream-ID has corresponding ACTLR entry then the driver would >> set value in register. >> Also some might have their prefetch settings as proprietary. >> Hence did not add the comments for device using these settings. > > Please mention devices that are going to use the SIDs. > Interested to know if there's a compelling reason to mention the device name. From SMMU driver perspective there's not much value proposition by mentioning the names of devices using the SIDs. Also sometimes it would be possible that the the SID value might change a bit for each client from hardware perspective which would need to be updated back in the driver <kind of an additional overhead for SMMU driver>. Hence I was in favour to avoid mentioning the name of devices, not making it look like a placeholder for SIDs and corresponding ACTLR values. Please let me know if you still feel otherwise. Thanks & regards, Bibek >> >> >> Thanks & regards, >> Bibek >> >>> >>>> + { 0x0c02, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c03, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c04, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c05, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c06, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c07, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c08, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c09, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c0c, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c0d, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c0e, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x0c0f, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1961, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1962, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1963, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1964, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1965, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1966, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1967, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1968, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1969, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x196c, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x196d, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x196e, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x196f, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19c1, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19c2, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19c3, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19c4, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19c5, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19c6, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19c7, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19c8, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19c9, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19cc, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19cd, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19ce, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x19cf, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, >>>> + { 0x1c00, 0x0002, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x1c01, 0x0000, PREFETCH_DEFAULT | CMTLB }, >>>> + { 0x1920, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x1923, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x1924, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x1940, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x1941, 0x0004, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x1943, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x1944, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> + { 0x1947, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, >>>> +}; >>>> + >>>> +static const struct actlr_config sm8550_gfx_actlr_cfg[] = { >>>> + { 0x0000, 0x03ff, PREFETCH_DEEP | CPRE | CMTLB }, >>>> +}; >>>> + >>>> +static const struct actlr_variant sm8550_actlr[] = { >>>> + { >>>> + .io_start = 0x15000000, >>>> + .actlrcfg = sm8550_apps_actlr_cfg, >>>> + .num_actlrcfg = ARRAY_SIZE(sm8550_apps_actlr_cfg) >>>> + }, { >>>> + .io_start = 0x03da0000, >>>> + .actlrcfg = sm8550_gfx_actlr_cfg, >>>> + .num_actlrcfg = ARRAY_SIZE(sm8550_gfx_actlr_cfg) >>>> + }, >>>> +}; >>>> >>>> static struct qcom_smmu *to_qcom_smmu(struct arm_smmu_device *smmu) >>>> { >>>> @@ -606,6 +685,15 @@ static const struct qcom_smmu_match_data sdm845_smmu_500_data = { >>>> /* Also no debug configuration. */ >>>> }; >>>> >>>> + >>>> +static const struct qcom_smmu_match_data sm8550_smmu_500_impl0_data = { >>>> + .impl = &qcom_smmu_500_impl, >>>> + .adreno_impl = &qcom_adreno_smmu_500_impl, >>>> + .cfg = &qcom_smmu_impl0_cfg, >>>> + .actlrvar = sm8550_actlr, >>>> + .num_smmu = ARRAY_SIZE(sm8550_actlr), >>>> +}; >>>> + >>>> static const struct qcom_smmu_match_data qcom_smmu_500_impl0_data = { >>>> .impl = &qcom_smmu_500_impl, >>>> .adreno_impl = &qcom_adreno_smmu_500_impl, >>>> @@ -640,6 +728,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { >>>> { .compatible = "qcom,sm8250-smmu-500", .data = &qcom_smmu_500_impl0_data }, >>>> { .compatible = "qcom,sm8350-smmu-500", .data = &qcom_smmu_500_impl0_data }, >>>> { .compatible = "qcom,sm8450-smmu-500", .data = &qcom_smmu_500_impl0_data }, >>>> + { .compatible = "qcom,sm8550-smmu-500", .data = &sm8550_smmu_500_impl0_data }, >>>> { .compatible = "qcom,smmu-500", .data = &qcom_smmu_500_impl0_data }, >>>> { } >>>> }; >>>> -- >>>> 2.34.1 >>>> >>> > > > > -- > With best wishes > Dmitry
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index 77c9abffe07d..b4521471ffe9 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -23,6 +23,85 @@ #define CPRE (1 << 1) #define CMTLB (1 << 0) +#define PREFETCH_SHIFT 8 +#define PREFETCH_DEFAULT 0 +#define PREFETCH_SHALLOW (1 << PREFETCH_SHIFT) +#define PREFETCH_MODERATE (2 << PREFETCH_SHIFT) +#define PREFETCH_DEEP (3 << PREFETCH_SHIFT) + +static const struct actlr_config sm8550_apps_actlr_cfg[] = { + { 0x18a0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x18e0, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x0800, 0x0020, PREFETCH_DEFAULT | CMTLB }, + { 0x1800, 0x00c0, PREFETCH_DEFAULT | CMTLB }, + { 0x1820, 0x0000, PREFETCH_DEFAULT | CMTLB }, + { 0x1860, 0x0000, PREFETCH_DEFAULT | CMTLB }, + { 0x0c01, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c02, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c03, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c04, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c05, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c06, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c07, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c08, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c09, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c0c, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c0d, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c0e, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x0c0f, 0x0020, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1961, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1962, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1963, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1964, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1965, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1966, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1967, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1968, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1969, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x196c, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x196d, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x196e, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x196f, 0x0000, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19c1, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19c2, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19c3, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19c4, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19c5, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19c6, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19c7, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19c8, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19c9, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19cc, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19cd, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19ce, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x19cf, 0x0010, PREFETCH_DEEP | CPRE | CMTLB }, + { 0x1c00, 0x0002, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x1c01, 0x0000, PREFETCH_DEFAULT | CMTLB }, + { 0x1920, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x1923, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x1924, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x1940, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x1941, 0x0004, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x1943, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x1944, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, + { 0x1947, 0x0000, PREFETCH_SHALLOW | CPRE | CMTLB }, +}; + +static const struct actlr_config sm8550_gfx_actlr_cfg[] = { + { 0x0000, 0x03ff, PREFETCH_DEEP | CPRE | CMTLB }, +}; + +static const struct actlr_variant sm8550_actlr[] = { + { + .io_start = 0x15000000, + .actlrcfg = sm8550_apps_actlr_cfg, + .num_actlrcfg = ARRAY_SIZE(sm8550_apps_actlr_cfg) + }, { + .io_start = 0x03da0000, + .actlrcfg = sm8550_gfx_actlr_cfg, + .num_actlrcfg = ARRAY_SIZE(sm8550_gfx_actlr_cfg) + }, +}; static struct qcom_smmu *to_qcom_smmu(struct arm_smmu_device *smmu) { @@ -606,6 +685,15 @@ static const struct qcom_smmu_match_data sdm845_smmu_500_data = { /* Also no debug configuration. */ }; + +static const struct qcom_smmu_match_data sm8550_smmu_500_impl0_data = { + .impl = &qcom_smmu_500_impl, + .adreno_impl = &qcom_adreno_smmu_500_impl, + .cfg = &qcom_smmu_impl0_cfg, + .actlrvar = sm8550_actlr, + .num_smmu = ARRAY_SIZE(sm8550_actlr), +}; + static const struct qcom_smmu_match_data qcom_smmu_500_impl0_data = { .impl = &qcom_smmu_500_impl, .adreno_impl = &qcom_adreno_smmu_500_impl, @@ -640,6 +728,7 @@ static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { { .compatible = "qcom,sm8250-smmu-500", .data = &qcom_smmu_500_impl0_data }, { .compatible = "qcom,sm8350-smmu-500", .data = &qcom_smmu_500_impl0_data }, { .compatible = "qcom,sm8450-smmu-500", .data = &qcom_smmu_500_impl0_data }, + { .compatible = "qcom,sm8550-smmu-500", .data = &sm8550_smmu_500_impl0_data }, { .compatible = "qcom,smmu-500", .data = &qcom_smmu_500_impl0_data }, { } };
Add ACTLR data table for SM8550 along with support for same including SM8550 specific implementation operations. Signed-off-by: Bibek Kumar Patro <quic_bibekkum@quicinc.com> --- drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 89 ++++++++++++++++++++++ 1 file changed, 89 insertions(+) -- 2.34.1