From db73a059de00eed721f13051c0d6ff3e7de90fe8 Mon Sep 17 00:00:00 2001 From: Alexander Shishkin Date: Fri, 3 May 2019 11:44:36 +0300 Subject: intel_th: Rework resource passing between glue layers and core Currently, MMIO resource numbers in the TH driver core correspond to PCI BAR numbers, because in the beginning there was only the PCI glue layer. This created some confusion when the ACPI glue layer was added. To avoid confusion and remove glue-specific code from the driver core, split the resource indices between core and glue layers and change the API so that the driver core receives the MMIO resources in the same fixed order. At the same time, make the IRQ always be a parameter to intel_th_alloc() instead of sometimes passing it as a resource. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/hwtracing/intel_th/pci.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'drivers/hwtracing/intel_th/pci.c') diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c index 1cf6290d6435..9dd2d75bd539 100644 --- a/drivers/hwtracing/intel_th/pci.c +++ b/drivers/hwtracing/intel_th/pci.c @@ -17,7 +17,12 @@ #define DRIVER_NAME "intel_th_pci" -#define BAR_MASK (BIT(TH_MMIO_CONFIG) | BIT(TH_MMIO_SW)) +enum { + TH_PCI_CONFIG_BAR = 0, + TH_PCI_STH_SW_BAR = 2, +}; + +#define BAR_MASK (BIT(TH_PCI_CONFIG_BAR) | BIT(TH_PCI_STH_SW_BAR)) #define PCI_REG_NPKDSC 0x80 #define NPKDSC_TSACT BIT(5) @@ -66,6 +71,10 @@ 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 resource resource[TH_MMIO_END] = { + [TH_MMIO_CONFIG] = pdev->resource[TH_PCI_CONFIG_BAR], + [TH_MMIO_SW] = pdev->resource[TH_PCI_STH_SW_BAR], + }; struct intel_th *th; int err; @@ -77,8 +86,8 @@ static int intel_th_pci_probe(struct pci_dev *pdev, if (err) return err; - th = intel_th_alloc(&pdev->dev, drvdata, pdev->resource, - DEVICE_COUNT_RESOURCE, pdev->irq); + th = intel_th_alloc(&pdev->dev, drvdata, resource, TH_MMIO_END, + pdev->irq); if (IS_ERR(th)) return PTR_ERR(th); -- cgit