コード例 #1
0
ファイル: amdgpu_kms.c プロジェクト: 513855417/linux
/**
 * amdgpu_driver_load_kms - Main load function for KMS.
 *
 * @dev: drm dev pointer
 * @flags: device flags
 *
 * This is the main load function for KMS (all asics).
 * Returns 0 on success, error on failure.
 */
int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
{
	struct amdgpu_device *adev;
	int r, acpi_status;

	adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL);
	if (adev == NULL) {
		return -ENOMEM;
	}
	dev->dev_private = (void *)adev;

	if ((amdgpu_runtime_pm != 0) &&
	    amdgpu_has_atpx() &&
	    ((flags & AMD_IS_APU) == 0))
		flags |= AMD_IS_PX;

	/* amdgpu_device_init should report only fatal error
	 * like memory allocation failure or iomapping failure,
	 * or memory manager initialization failure, it must
	 * properly initialize the GPU MC controller and permit
	 * VRAM allocation
	 */
	r = amdgpu_device_init(adev, dev, dev->pdev, flags);
	if (r) {
		dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
		goto out;
	}

	/* Call ACPI methods: require modeset init
	 * but failure is not fatal
	 */
	if (!r) {
		acpi_status = amdgpu_acpi_init(adev);
		if (acpi_status)
		dev_dbg(&dev->pdev->dev,
				"Error during ACPI methods call\n");
	}

	amdgpu_amdkfd_load_interface(adev);
	amdgpu_amdkfd_device_probe(adev);
	amdgpu_amdkfd_device_init(adev);

	if (amdgpu_device_is_px(dev)) {
		pm_runtime_use_autosuspend(dev->dev);
		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
		pm_runtime_set_active(dev->dev);
		pm_runtime_allow(dev->dev);
		pm_runtime_mark_last_busy(dev->dev);
		pm_runtime_put_autosuspend(dev->dev);
	}

out:
	if (r)
		amdgpu_driver_unload_kms(dev);


	return r;
}
コード例 #2
0
ファイル: amdgpu_kms.c プロジェクト: MaxKellermann/linux
/**
 * amdgpu_driver_load_kms - Main load function for KMS.
 *
 * @dev: drm dev pointer
 * @flags: device flags
 *
 * This is the main load function for KMS (all asics).
 * Returns 0 on success, error on failure.
 */
int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
{
	struct amdgpu_device *adev;
	int r, acpi_status;

#ifdef CONFIG_DRM_AMDGPU_SI
	if (!amdgpu_si_support) {
		switch (flags & AMD_ASIC_MASK) {
		case CHIP_TAHITI:
		case CHIP_PITCAIRN:
		case CHIP_VERDE:
		case CHIP_OLAND:
		case CHIP_HAINAN:
			dev_info(dev->dev,
				 "SI support provided by radeon.\n");
			dev_info(dev->dev,
				 "Use radeon.si_support=0 amdgpu.si_support=1 to override.\n"
				);
			return -ENODEV;
		}
	}
#endif
#ifdef CONFIG_DRM_AMDGPU_CIK
	if (!amdgpu_cik_support) {
		switch (flags & AMD_ASIC_MASK) {
		case CHIP_KAVERI:
		case CHIP_BONAIRE:
		case CHIP_HAWAII:
		case CHIP_KABINI:
		case CHIP_MULLINS:
			dev_info(dev->dev,
				 "CIK support provided by radeon.\n");
			dev_info(dev->dev,
				 "Use radeon.cik_support=0 amdgpu.cik_support=1 to override.\n"
				);
			return -ENODEV;
		}
	}
#endif

	adev = kzalloc(sizeof(struct amdgpu_device), GFP_KERNEL);
	if (adev == NULL) {
		return -ENOMEM;
	}
	dev->dev_private = (void *)adev;

	if ((amdgpu_runtime_pm != 0) &&
	    amdgpu_has_atpx() &&
	    (amdgpu_is_atpx_hybrid() ||
	     amdgpu_has_atpx_dgpu_power_cntl()) &&
	    ((flags & AMD_IS_APU) == 0) &&
	    !pci_is_thunderbolt_attached(dev->pdev))
		flags |= AMD_IS_PX;

	/* amdgpu_device_init should report only fatal error
	 * like memory allocation failure or iomapping failure,
	 * or memory manager initialization failure, it must
	 * properly initialize the GPU MC controller and permit
	 * VRAM allocation
	 */
	r = amdgpu_device_init(adev, dev, dev->pdev, flags);
	if (r) {
		dev_err(&dev->pdev->dev, "Fatal error during GPU init\n");
		goto out;
	}

	/* Call ACPI methods: require modeset init
	 * but failure is not fatal
	 */
	if (!r) {
		acpi_status = amdgpu_acpi_init(adev);
		if (acpi_status)
		dev_dbg(&dev->pdev->dev,
				"Error during ACPI methods call\n");
	}

	amdgpu_amdkfd_device_probe(adev);
	amdgpu_amdkfd_device_init(adev);

	if (amdgpu_device_is_px(dev)) {
		pm_runtime_use_autosuspend(dev->dev);
		pm_runtime_set_autosuspend_delay(dev->dev, 5000);
		pm_runtime_set_active(dev->dev);
		pm_runtime_allow(dev->dev);
		pm_runtime_mark_last_busy(dev->dev);
		pm_runtime_put_autosuspend(dev->dev);
	}

	if (amdgpu_sriov_vf(adev))
		amdgpu_virt_release_full_gpu(adev, true);

out:
	if (r) {
		/* balance pm_runtime_get_sync in amdgpu_driver_unload_kms */
		if (adev->rmmio && amdgpu_device_is_px(dev))
			pm_runtime_put_noidle(dev->dev);
		amdgpu_driver_unload_kms(dev);
	}

	return r;
}