C++ (Cpp) amdgpu_atpx_pci_probe_handle Examples

Example #1

File: amdgpu_atpx_handler.c Project: TheDarkCode/linux

/**
 * amdgpu_atpx_detect - detect whether we have PX
 *
 * Check if we have a PX system (all asics).
 * Returns true if we have a PX system, false if not.
 */
static bool amdgpu_atpx_detect(void)
{
	char acpi_method_name[255] = { 0 };
	struct acpi_buffer buffer = {sizeof(acpi_method_name), acpi_method_name};
	struct pci_dev *pdev = NULL;
	bool has_atpx = false;
	int vga_count = 0;

	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
		vga_count++;

		has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);
	}

	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
		vga_count++;

		has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);
	}

	if (has_atpx && vga_count == 2) {
		acpi_get_name(amdgpu_atpx_priv.atpx.handle, ACPI_FULL_PATHNAME, &buffer);
		printk(KERN_INFO "vga_switcheroo: detected switching method %s handle\n",
		       acpi_method_name);
		amdgpu_atpx_priv.atpx_detected = true;
		amdgpu_atpx_init();
		return true;
	}
	return false;
}

Example #2

File: amdgpu_atpx_handler.c Project: ryoon/linux

/**
 * amdgpu_atpx_detect - detect whether we have PX
 *
 * Check if we have a PX system (all asics).
 * Returns true if we have a PX system, false if not.
 */
static bool amdgpu_atpx_detect(void)
{
	char acpi_method_name[255] = { 0 };
	struct acpi_buffer buffer = {sizeof(acpi_method_name), acpi_method_name};
	struct pci_dev *pdev = NULL;
	bool has_atpx = false;
	int vga_count = 0;
	bool d3_supported = false;
	struct pci_dev *parent_pdev;

	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
		vga_count++;

		has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);

		parent_pdev = pci_upstream_bridge(pdev);
		d3_supported |= parent_pdev && parent_pdev->bridge_d3;
		amdgpu_atpx_get_quirks(pdev);
	}

	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
		vga_count++;

		has_atpx |= (amdgpu_atpx_pci_probe_handle(pdev) == true);

		parent_pdev = pci_upstream_bridge(pdev);
		d3_supported |= parent_pdev && parent_pdev->bridge_d3;
		amdgpu_atpx_get_quirks(pdev);
	}

	if (has_atpx && vga_count == 2) {
		acpi_get_name(amdgpu_atpx_priv.atpx.handle, ACPI_FULL_PATHNAME, &buffer);
		pr_info("vga_switcheroo: detected switching method %s handle\n",
			acpi_method_name);
		amdgpu_atpx_priv.atpx_detected = true;
		amdgpu_atpx_priv.bridge_pm_usable = d3_supported;
		amdgpu_atpx_init();
		return true;
	}
	return false;
}