Commit bd660f4f authored Oct 01, 2019 by shaoyunl Committed by Alex Deucher Oct 03, 2019

drm/amdgpu : enable msix for amdgpu driver



We might used out of the msi resources in some cloud project
which have a lot gpu devices(including PF and VF), msix can
provide enough resources from system level view

Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent 452f9bdd

drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -245,8 +245,9 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
		adev->irq.msi_enabled = false;

		if (amdgpu_msi_ok(adev)) {
		int ret = pci_enable_msi(adev->pdev);
		if (!ret) {
		int nvec = pci_alloc_irq_vectors(adev->pdev, 1, pci_msix_vec_count(adev->pdev),
		PCI_IRQ_MSI \| PCI_IRQ_MSIX);
		if (nvec > 0) {
		adev->irq.msi_enabled = true;
		dev_dbg(adev->dev, "amdgpu: using MSI.\n");
		}

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