From: shaoyunl Date: Tue, 1 Oct 2019 19:52:31 +0000 (-0400) Subject: drm/amdgpu : enable msix for amdgpu driver X-Git-Tag: Ubuntu-5.13.0-19.19~7221^2~26^2~38 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=bd660f4f111161f60392dd02424c3a3d2240dc2f;p=mirror_ubuntu-jammy-kernel.git 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 Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c index d1d5e7f9b9be..50771b2757dc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c @@ -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"); }