[AMD Official Use Only - General]
I wonder how this is observed. Any bug report related with this?
Evan
> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Alex
> Deucher
> Sent: Thursday, December 8, 2022 1:06 AM
> To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>
> Subject: [PATCH] drm/amdgpu: handle polaris10/11 overlap asics (v2)
>
> Some special polaris 10 chips overlap with the polaris11
> DID range. Handle this properly in the driver.
>
> v2: use local flags for other function calls.
>
> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> index 7383272c6a3a..b4f2d61ea0d5 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> @@ -2039,6 +2039,15 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
> "See modparam exp_hw_support\n");
> return -ENODEV;
> }
> + /* differentiate between P10 and P11 asics with the same DID */
> + if (pdev->device == 0x67FF &&
> + (pdev->revision == 0xE3 ||
> + pdev->revision == 0xE7 ||
> + pdev->revision == 0xF3 ||
> + pdev->revision == 0xF7)) {
> + flags &= ~AMD_ASIC_MASK;
> + flags |= CHIP_POLARIS10;
> + }
>
> /* Due to hardware bugs, S/G Display on raven requires a 1:1
> IOMMU mapping,
> * however, SME requires an indirect IOMMU mapping because the
> encryption
> @@ -2108,12 +2117,12 @@ static int amdgpu_pci_probe(struct pci_dev
> *pdev,
>
> pci_set_drvdata(pdev, ddev);
>
> - ret = amdgpu_driver_load_kms(adev, ent->driver_data);
> + ret = amdgpu_driver_load_kms(adev, flags);
> if (ret)
> goto err_pci;
>
> retry_init:
> - ret = drm_dev_register(ddev, ent->driver_data);
> + ret = drm_dev_register(ddev, flags);
> if (ret == -EAGAIN && ++retry <= 3) {
> DRM_INFO("retry init %d\n", retry);
> /* Don't request EX mode too frequently which is attacking
> */
> --
> 2.38.1
