| Message ID | 20241009091540.1446-7-quic_qianyu@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add support for PCIe3 on x1e80100 | expand |
On Wed, Oct 09, 2024 at 02:15:39AM GMT, Qiang Yu wrote: > On X1E80100 and SC8280X family SoC, PCIe controllers are connected to > SMMUv3, hence they don't need the config_sid() callback in ops_1_9_0 > struct. Fix it by introducing a new ops struct, namely ops_1_21_0, so > that BDF2SID mapping won't be configured during init. Fixes tag missing. Cc:stable if required. > > In addition, since it is recommended to disable ASPM L0s on X1E80100 as > same as SC8280X, hence X1E80100 can simply reuse cfg_sc8280xp as its > config. Separate commit, please with its own description and Fixes tag. > > Signed-off-by: Qiang Yu <quic_qianyu@quicinc.com> > --- > drivers/pci/controller/dwc/pcie-qcom.c | 14 ++++++++++++-- > 1 file changed, 12 insertions(+), 2 deletions(-) > > diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c > index 88a98be930e3..c533e6024ba2 100644 > --- a/drivers/pci/controller/dwc/pcie-qcom.c > +++ b/drivers/pci/controller/dwc/pcie-qcom.c > @@ -1367,6 +1367,16 @@ static const struct qcom_pcie_ops ops_2_9_0 = { > .ltssm_enable = qcom_pcie_2_3_2_ltssm_enable, > }; > > +/* Qcom IP rev.: 1.21.0 */ > +static const struct qcom_pcie_ops ops_1_21_0 = { > + .get_resources = qcom_pcie_get_resources_2_7_0, > + .init = qcom_pcie_init_2_7_0, > + .post_init = qcom_pcie_post_init_2_7_0, > + .host_post_init = qcom_pcie_host_post_init_2_7_0, > + .deinit = qcom_pcie_deinit_2_7_0, > + .ltssm_enable = qcom_pcie_2_3_2_ltssm_enable, > +}; > + > static const struct qcom_pcie_cfg cfg_1_0_0 = { > .ops = &ops_1_0_0, > }; > @@ -1405,7 +1415,7 @@ static const struct qcom_pcie_cfg cfg_2_9_0 = { > }; > > static const struct qcom_pcie_cfg cfg_sc8280xp = { > - .ops = &ops_1_9_0, > + .ops = &ops_1_21_0, > .no_l0s = true, > }; > > @@ -1837,7 +1847,7 @@ static const struct of_device_id qcom_pcie_match[] = { > { .compatible = "qcom,pcie-sm8450-pcie0", .data = &cfg_1_9_0 }, > { .compatible = "qcom,pcie-sm8450-pcie1", .data = &cfg_1_9_0 }, > { .compatible = "qcom,pcie-sm8550", .data = &cfg_1_9_0 }, > - { .compatible = "qcom,pcie-x1e80100", .data = &cfg_1_9_0 }, > + { .compatible = "qcom,pcie-x1e80100", .data = &cfg_sc8280xp }, > { } > }; > > -- > 2.34.1 >
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index 88a98be930e3..c533e6024ba2 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -1367,6 +1367,16 @@ static const struct qcom_pcie_ops ops_2_9_0 = { .ltssm_enable = qcom_pcie_2_3_2_ltssm_enable, }; +/* Qcom IP rev.: 1.21.0 */ +static const struct qcom_pcie_ops ops_1_21_0 = { + .get_resources = qcom_pcie_get_resources_2_7_0, + .init = qcom_pcie_init_2_7_0, + .post_init = qcom_pcie_post_init_2_7_0, + .host_post_init = qcom_pcie_host_post_init_2_7_0, + .deinit = qcom_pcie_deinit_2_7_0, + .ltssm_enable = qcom_pcie_2_3_2_ltssm_enable, +}; + static const struct qcom_pcie_cfg cfg_1_0_0 = { .ops = &ops_1_0_0, }; @@ -1405,7 +1415,7 @@ static const struct qcom_pcie_cfg cfg_2_9_0 = { }; static const struct qcom_pcie_cfg cfg_sc8280xp = { - .ops = &ops_1_9_0, + .ops = &ops_1_21_0, .no_l0s = true, }; @@ -1837,7 +1847,7 @@ static const struct of_device_id qcom_pcie_match[] = { { .compatible = "qcom,pcie-sm8450-pcie0", .data = &cfg_1_9_0 }, { .compatible = "qcom,pcie-sm8450-pcie1", .data = &cfg_1_9_0 }, { .compatible = "qcom,pcie-sm8550", .data = &cfg_1_9_0 }, - { .compatible = "qcom,pcie-x1e80100", .data = &cfg_1_9_0 }, + { .compatible = "qcom,pcie-x1e80100", .data = &cfg_sc8280xp }, { } };
On X1E80100 and SC8280X family SoC, PCIe controllers are connected to SMMUv3, hence they don't need the config_sid() callback in ops_1_9_0 struct. Fix it by introducing a new ops struct, namely ops_1_21_0, so that BDF2SID mapping won't be configured during init. In addition, since it is recommended to disable ASPM L0s on X1E80100 as same as SC8280X, hence X1E80100 can simply reuse cfg_sc8280xp as its config. Signed-off-by: Qiang Yu <quic_qianyu@quicinc.com> --- drivers/pci/controller/dwc/pcie-qcom.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)