On Mon, Feb 28, 2022 at 08:19:42PM -0800, David E. Box wrote:
> Add vmd_device_data to allow adding additional info for driver data. Also
> refactor the PCI ID list to use PCI_VDEVICE.
I think this must be two patches, (1) conversion to PCI_VDEVICE
and (2) vmd_device_data.
Thanks,
Lorenzo
> Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx>
> ---
> V6
> - Inline the declarations for driver data in the vmd_ids list.
> Suggested by Jonathan
> V5
> - New patch
>
> drivers/pci/controller/vmd.c | 76 ++++++++++++++++++++++++------------
> 1 file changed, 50 insertions(+), 26 deletions(-)
>
> diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
> index cc166c683638..cde6e2cba210 100644
> --- a/drivers/pci/controller/vmd.c
> +++ b/drivers/pci/controller/vmd.c
> @@ -69,6 +69,10 @@ enum vmd_features {
> VMD_FEAT_CAN_BYPASS_MSI_REMAP = (1 << 4),
> };
>
> +struct vmd_device_data {
> + enum vmd_features features;
> +};
> +
> static DEFINE_IDA(vmd_instance_ida);
>
> /*
> @@ -710,11 +714,12 @@ static void vmd_copy_host_bridge_flags(struct pci_host_bridge *root_bridge,
> vmd_bridge->native_dpc = root_bridge->native_dpc;
> }
>
> -static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features)
> +static int vmd_enable_domain(struct vmd_dev *vmd, struct vmd_device_data *info)
> {
> struct pci_sysdata *sd = &vmd->sysdata;
> struct resource *res;
> u32 upper_bits;
> + unsigned long features = info->features;
> unsigned long flags;
> LIST_HEAD(resources);
> resource_size_t offset[2] = {0};
> @@ -881,7 +886,8 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features)
>
> static int vmd_probe(struct pci_dev *dev, const struct pci_device_id *id)
> {
> - unsigned long features = (unsigned long) id->driver_data;
> + struct vmd_device_data *info = (struct vmd_device_data *)id->driver_data;
> + unsigned long features = info->features;
> struct vmd_dev *vmd;
> int err;
>
> @@ -925,7 +931,7 @@ static int vmd_probe(struct pci_dev *dev, const struct pci_device_id *id)
>
> spin_lock_init(&vmd->cfg_lock);
> pci_set_drvdata(dev, vmd);
> - err = vmd_enable_domain(vmd, features);
> + err = vmd_enable_domain(vmd, info);
> if (err)
> goto out_release_instance;
>
> @@ -994,29 +1000,47 @@ static int vmd_resume(struct device *dev)
> static SIMPLE_DEV_PM_OPS(vmd_dev_pm_ops, vmd_suspend, vmd_resume);
>
> static const struct pci_device_id vmd_ids[] = {
> - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VMD_201D),
> - .driver_data = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP,},
> - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VMD_28C0),
> - .driver_data = VMD_FEAT_HAS_MEMBAR_SHADOW |
> - VMD_FEAT_HAS_BUS_RESTRICTIONS |
> - VMD_FEAT_CAN_BYPASS_MSI_REMAP,},
> - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x467f),
> - .driver_data = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP |
> - VMD_FEAT_HAS_BUS_RESTRICTIONS |
> - VMD_FEAT_OFFSET_FIRST_VECTOR,},
> - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4c3d),
> - .driver_data = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP |
> - VMD_FEAT_HAS_BUS_RESTRICTIONS |
> - VMD_FEAT_OFFSET_FIRST_VECTOR,},
> - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa77f),
> - .driver_data = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP |
> - VMD_FEAT_HAS_BUS_RESTRICTIONS |
> - VMD_FEAT_OFFSET_FIRST_VECTOR,},
> - {PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_VMD_9A0B),
> - .driver_data = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP |
> - VMD_FEAT_HAS_BUS_RESTRICTIONS |
> - VMD_FEAT_OFFSET_FIRST_VECTOR,},
> - {0,}
> + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_VMD_201D),
> + (kernel_ulong_t)&(struct vmd_device_data) {
> + .features = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP,
> + },
> + },
> + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_VMD_28C0),
> + (kernel_ulong_t)&(struct vmd_device_data) {
> + .features = VMD_FEAT_HAS_MEMBAR_SHADOW |
> + VMD_FEAT_HAS_BUS_RESTRICTIONS |
> + VMD_FEAT_CAN_BYPASS_MSI_REMAP,
> + },
> + },
> + { PCI_VDEVICE(INTEL, 0x467f),
> + (kernel_ulong_t)&(struct vmd_device_data) {
> + .features = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP |
> + VMD_FEAT_HAS_BUS_RESTRICTIONS |
> + VMD_FEAT_OFFSET_FIRST_VECTOR,
> + },
> + },
> + { PCI_VDEVICE(INTEL, 0x4c3d),
> + (kernel_ulong_t)&(struct vmd_device_data) {
> + .features = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP |
> + VMD_FEAT_HAS_BUS_RESTRICTIONS |
> + VMD_FEAT_OFFSET_FIRST_VECTOR,
> + },
> + },
> + { PCI_VDEVICE(INTEL, 0xa77f),
> + (kernel_ulong_t)&(struct vmd_device_data) {
> + .features = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP |
> + VMD_FEAT_HAS_BUS_RESTRICTIONS |
> + VMD_FEAT_OFFSET_FIRST_VECTOR,
> + },
> + },
> + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_VMD_9A0B),
> + (kernel_ulong_t)&(struct vmd_device_data) {
> + .features = VMD_FEAT_HAS_MEMBAR_SHADOW_VSCAP |
> + VMD_FEAT_HAS_BUS_RESTRICTIONS |
> + VMD_FEAT_OFFSET_FIRST_VECTOR,
> + },
> + },
> + { }
> };
> MODULE_DEVICE_TABLE(pci, vmd_ids);
>
> --
> 2.25.1
>
>
