-----Original Message-----
From: Zhou1, Tao <Tao.Zhou1@xxxxxxx>
Sent: Wednesday, January 19, 2022 2:11 PM
To: Chai, Thomas <YiPeng.Chai@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Zhang, Hawking <Hawking.Zhang@xxxxxxx>; Clements, John <John.Clements@xxxxxxx>
Subject: RE: [PATCH 2/3] drm/amdgpu: Move xgmi ras initialization from .late_init to .early_init
[AMD Official Use Only]
> -----Original Message-----
> From: Chai, Thomas <YiPeng.Chai@xxxxxxx>
> Sent: Wednesday, January 19, 2022 10:56 AM
> To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Chai, Thomas <YiPeng.Chai@xxxxxxx>; Zhang, Hawking
> <Hawking.Zhang@xxxxxxx>; Zhou1, Tao <Tao.Zhou1@xxxxxxx>; Clements,
> John <John.Clements@xxxxxxx>; Chai, Thomas <YiPeng.Chai@xxxxxxx>
> Subject: [PATCH 2/3] drm/amdgpu: Move xgmi ras initialization from
> .late_init to .early_init
>
> Move xgmi ras initialization from .late_init to .early_init, which let
> xgmi ras be initialized only once.
>
> Signed-off-by: yipechai <YiPeng.Chai@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 5 -----
> drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 1 -
> drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 9 +++++++++
> 3 files changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> index 3483a82f5734..d83eee1984c8 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
> @@ -452,11 +452,6 @@ int amdgpu_gmc_ras_late_init(struct amdgpu_device
> *adev)
> return r;
> }
>
> - if (!adev->gmc.xgmi.connected_to_cpu) {
> - adev->gmc.xgmi.ras = &xgmi_ras;
> - amdgpu_ras_register_ras_block(adev, &adev->gmc.xgmi.ras-
> >ras_block);
> - }
> -
> if (adev->gmc.xgmi.ras &&
> adev->gmc.xgmi.ras->ras_block.ras_late_init)
> {
> r = adev->gmc.xgmi.ras->ras_block.ras_late_init(adev, NULL);
> if (r)
> diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> index 4f8d356f8432..5f9f82091000 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
> @@ -716,7 +716,6 @@ static void gmc_v10_0_set_gfxhub_funcs(struct
> amdgpu_device *adev)
> }
> }
>
> -
>[Tao]: Please don't introduce irrelevant change.
[Thomas] OK
> static int gmc_v10_0_early_init(void *handle) {
> struct amdgpu_device *adev = (struct amdgpu_device *)handle; diff
> --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> index c76ffd1a70cd..8d1b11368a7b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
> @@ -1303,6 +1303,14 @@ static void gmc_v9_0_set_hdp_ras_funcs(struct
> amdgpu_device *adev)
> amdgpu_ras_register_ras_block(adev, &adev->hdp.ras->ras_block); }
>
> +static void gmc_v9_0_set_xgmi_ras_funcs(struct amdgpu_device *adev) {
> + if (!adev->gmc.xgmi.connected_to_cpu) {
> + adev->gmc.xgmi.ras = &xgmi_ras;
> + amdgpu_ras_register_ras_block(adev, &adev->gmc.xgmi.ras-
> >ras_block);
> + }
> +}
>[Tao]: Since the initialization of xgmi.ras is common for all versions of IP, I recommend to create a generic ras_early_init func for it.
>BTW, I think we can remove the check for block_obj's existence in register_ras_block now.
[Thomas] I will update the patch.
> +
> static void gmc_v9_0_set_mca_funcs(struct amdgpu_device *adev) {
> /* is UMC the right IP to check for MCA? Maybe DF? */ @@ -1339,6
> +1347,7 @@ static int gmc_v9_0_early_init(void *handle)
> gmc_v9_0_set_gfxhub_funcs(adev);
> gmc_v9_0_set_hdp_ras_funcs(adev);
> gmc_v9_0_set_mca_funcs(adev);
> + gmc_v9_0_set_xgmi_ras_funcs(adev);
>
> adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
> adev->gmc.shared_aperture_end =
> --
> 2.25.1
