RE: [PATCH] drm/amdgpu: Remove redundant GFX v9.4.3 sequence

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[AMD Official Use Only - General]

Reviewed-by: Asad Kamal <asad.kamal@xxxxxxx>

-----Original Message-----
From: Ma, Le <Le.Ma@xxxxxxx>
Sent: Wednesday, July 5, 2023 11:52 AM
To: Lazar, Lijo <Lijo.Lazar@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Zhang, Hawking <Hawking.Zhang@xxxxxxx>; Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Kamal, Asad <Asad.Kamal@xxxxxxx>; Gadre, Mangesh <Mangesh.Gadre@xxxxxxx>
Subject: RE: [PATCH] drm/amdgpu: Remove redundant GFX v9.4.3 sequence

[AMD Official Use Only - General]

Reviewed-by: Le Ma <le.ma@xxxxxxx>

> -----Original Message-----
> From: Lazar, Lijo <Lijo.Lazar@xxxxxxx>
> Sent: Wednesday, July 5, 2023 1:31 PM
> To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Zhang, Hawking <Hawking.Zhang@xxxxxxx>; Deucher, Alexander
> <Alexander.Deucher@xxxxxxx>; Kamal, Asad <Asad.Kamal@xxxxxxx>; Ma, Le
> <Le.Ma@xxxxxxx>; Gadre, Mangesh <Mangesh.Gadre@xxxxxxx>
> Subject: [PATCH] drm/amdgpu: Remove redundant GFX v9.4.3 sequence
>
> Programming of XCC id is already taken care with partition mode change.
>
> Signed-off-by: Lijo Lazar <lijo.lazar@xxxxxxx>
> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c | 29
> -------------------------
>  1 file changed, 29 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
> index 51532d0dd7a7..548b1123f7c6 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
> @@ -1034,32 +1034,6 @@ static void
> gfx_v9_4_3_xcc_disable_gpa_mode(struct amdgpu_device *adev, int xcc_
>       WREG32_SOC15(GC, GET_INST(GC, xcc_id), regCPC_PSP_DEBUG, data);
> }
>
> -static void gfx_v9_4_3_xcc_program_xcc_id(struct amdgpu_device *adev,
> -                                       int xcc_id)
> -{
> -     uint32_t tmp = 0;
> -     int num_xcc;
> -
> -     num_xcc = NUM_XCC(adev->gfx.xcc_mask);
> -     switch (num_xcc) {
> -     /* directly config VIRTUAL_XCC_ID to 0 for 1-XCC */
> -     case 1:
> -             WREG32_SOC15(GC, GET_INST(GC, xcc_id),
> regCP_HYP_XCP_CTL, 0x8);
> -             break;
> -     case 2:
> -     case 4:
> -     case 6:
> -     case 8:
> -             tmp = (xcc_id % adev->gfx.num_xcc_per_xcp) <<
> REG_FIELD_SHIFT(CP_HYP_XCP_CTL, VIRTUAL_XCC_ID);
> -             tmp = tmp | (adev->gfx.num_xcc_per_xcp <<
> REG_FIELD_SHIFT(CP_HYP_XCP_CTL, NUM_XCC_IN_XCP));
> -             WREG32_SOC15(GC, GET_INST(GC, xcc_id),
> regCP_HYP_XCP_CTL, tmp);
> -
> -             break;
> -     default:
> -             break;
> -     }
> -}
> -
>  static bool gfx_v9_4_3_is_rlc_enabled(struct amdgpu_device *adev)  {
>       uint32_t rlc_setting;
> @@ -1917,9 +1891,6 @@ static int gfx_v9_4_3_xcc_cp_resume(struct
> amdgpu_device *adev, int xcc_id)
>                       return r;
>       }
>
> -     /* set the virtual and physical id based on partition_mode */
> -     gfx_v9_4_3_xcc_program_xcc_id(adev, xcc_id);
> -
>       r = gfx_v9_4_3_xcc_kiq_resume(adev, xcc_id);
>       if (r)
>               return r;
> --
> 2.25.1






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