diff options
| -rw-r--r-- | drivers/hwtracing/intel_th/core.c | 6 | ||||
| -rw-r--r-- | drivers/hwtracing/intel_th/intel_th.h | 27 | ||||
| -rw-r--r-- | drivers/hwtracing/intel_th/pci.c | 3 |
3 files changed, 26 insertions, 10 deletions
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c index d1760003b4a4..e915ab24f434 100644 --- a/drivers/hwtracing/intel_th/core.c +++ b/drivers/hwtracing/intel_th/core.c @@ -576,6 +576,7 @@ intel_th_subdevice_alloc(struct intel_th *th, if (!thdev) return ERR_PTR(-ENOMEM); + thdev->drvdata = th->drvdata; memcpy(res, subdev->res, sizeof(struct resource) * subdev->nres); @@ -789,8 +790,8 @@ static const struct file_operations intel_th_output_fops = { * @irq: irq number */ struct intel_th * -intel_th_alloc(struct device *dev, struct resource *devres, - unsigned int ndevres, int irq) +intel_th_alloc(struct device *dev, struct intel_th_drvdata *drvdata, + struct resource *devres, unsigned int ndevres, int irq) { struct intel_th *th; int err; @@ -812,6 +813,7 @@ intel_th_alloc(struct device *dev, struct resource *devres, goto err_ida; } th->dev = dev; + th->drvdata = drvdata; th->resource = devres; th->num_resources = ndevres; diff --git a/drivers/hwtracing/intel_th/intel_th.h b/drivers/hwtracing/intel_th/intel_th.h index 3f4558404dca..68244602ca29 100644 --- a/drivers/hwtracing/intel_th/intel_th.h +++ b/drivers/hwtracing/intel_th/intel_th.h @@ -48,8 +48,19 @@ struct intel_th_output { }; /** + * struct intel_th_drvdata - describes hardware capabilities and quirks + * @tscu_enable: device needs SW to enable time stamping unit + */ +struct intel_th_drvdata { + unsigned int tscu_enable : 1; +}; + +#define INTEL_TH_CAP(_th, _cap) ((_th)->drvdata ? (_th)->drvdata->_cap : 0) + +/** * struct intel_th_device - device on the intel_th bus * @dev: device + * @drvdata: hardware capabilities/quirks * @resource: array of resources available to this device * @num_resources: number of resources in @resource array * @type: INTEL_TH_{SOURCE,OUTPUT,SWITCH} @@ -59,11 +70,12 @@ struct intel_th_output { * @name: device name to match the driver */ struct intel_th_device { - struct device dev; - struct resource *resource; - unsigned int num_resources; - unsigned int type; - int id; + struct device dev; + struct intel_th_drvdata *drvdata; + struct resource *resource; + unsigned int num_resources; + unsigned int type; + int id; /* INTEL_TH_SWITCH specific */ bool host_mode; @@ -206,8 +218,8 @@ static inline struct intel_th *to_intel_th(struct intel_th_device *thdev) } struct intel_th * -intel_th_alloc(struct device *dev, struct resource *devres, - unsigned int ndevres, int irq); +intel_th_alloc(struct device *dev, struct intel_th_drvdata *drvdata, + struct resource *devres, unsigned int ndevres, int irq); void intel_th_free(struct intel_th *th); int intel_th_driver_register(struct intel_th_driver *thdrv); @@ -248,6 +260,7 @@ struct intel_th { struct intel_th_device *thdev[TH_SUBDEVICE_MAX]; struct intel_th_device *hub; + struct intel_th_drvdata *drvdata; struct resource *resource; unsigned int num_thdevs; diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c index 5a9a9e8072a9..aed6d594991e 100644 --- a/drivers/hwtracing/intel_th/pci.c +++ b/drivers/hwtracing/intel_th/pci.c @@ -30,6 +30,7 @@ static int intel_th_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) { + struct intel_th_drvdata *drvdata = (void *)id->driver_data; struct intel_th *th; int err; @@ -41,7 +42,7 @@ static int intel_th_pci_probe(struct pci_dev *pdev, if (err) return err; - th = intel_th_alloc(&pdev->dev, pdev->resource, + th = intel_th_alloc(&pdev->dev, drvdata, pdev->resource, DEVICE_COUNT_RESOURCE, pdev->irq); if (IS_ERR(th)) return PTR_ERR(th); |