Thanks Alex and Tom to catch and revolve the issue . I didn't do
enough test on original test.
We don't need to enable msix on APU . The serials is reviewed by
shaoyun.liu <shaoyun.liu@xxxxxxx>
Regards
shaoyun.liu
On 2019-10-03 10:13 a.m., Alex Deucher wrote:
> Raven claims to support them, but seems to have problems. Stick
> with MSIs for now on APUs.
>
> Tested-by: Tom St Denis <tom.stdenis@xxxxxxx>
> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> index 98aa28edba6a..8f2236bd7d0e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> @@ -248,7 +248,8 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
> unsigned int flags;
> int nvec = pci_msix_vec_count(adev->pdev);
>
> - if (nvec <= 0) {
> + /* Raven claims to support MSI-X, but seems to have problems */
> + if ((nvec <= 0) || (adev->flags & AMD_IS_APU)) {
> flags = PCI_IRQ_MSI;
> nvec = 1;
> } else {
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