[PATCH 1/2] drm/amdgpu/gfx11: fix num_mec

[Alex Deucher]

On Wed, Mar 26, 2025 at 11:48 AM Khatri, Sunil <Sunil.Khatri at amd.com> wrote:
>
> [AMD Official Use Only - AMD Internal Distribution Only]
>
> Gfx11 now we have same values, hence we don't need to differentiate between two sets , only one set is needed like below.

For these fixes, I'd like to keep this as is so we can get these
patches to stable and then clean this up as a follow up patch.

Alex

>
> As below
> case IP_VERSION(11, 0, 0):
>         case IP_VERSION(11, 0, 2):
>         case IP_VERSION(11, 0, 3):
>         case IP_VERSION(11, 0, 1):
>         case IP_VERSION(11, 0, 4):
>         case IP_VERSION(11, 5, 0):
>         case IP_VERSION(11, 5, 1):
>         case IP_VERSION(11, 5, 2):
>         case IP_VERSION(11, 5, 3):
>                 adev->gfx.me.num_me = 1;
>                 adev->gfx.me.num_pipe_per_me = 1;
>                 adev->gfx.me.num_queue_per_pipe = 1;
>                 adev->gfx.mec.num_mec = 1;
>                 adev->gfx.mec.num_pipe_per_mec = 4;
>                 adev->gfx.mec.num_queue_per_pipe = 4;
> #ifdef CONFIG_DRM_AMDGPU_NAVI3X_USERQ
>                 adev->userq_funcs[AMDGPU_HW_IP_GFX] = &userq_mes_funcs;
>                 adev->userq_funcs[AMDGPU_HW_IP_COMPUTE] = &userq_mes_funcs;
> #endif
>                         break;
>
> Regards
> Sunil Khatri
>
> -----Original Message-----
> From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Alex Deucher
> Sent: Wednesday, March 26, 2025 7:13 PM
> To: amd-gfx at lists.freedesktop.org
> Cc: Deucher, Alexander <Alexander.Deucher at amd.com>
> Subject: [PATCH 1/2] drm/amdgpu/gfx11: fix num_mec
>
> GC11 only has 1 mec.
>
> Fixes: 3d879e81f0f9 ("drm/amdgpu: add init support for GFX11 (v2)")
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
> index e0a9b10d645c6..a9ef33205c541 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
> @@ -1573,7 +1573,7 @@ static int gfx_v11_0_sw_init(struct amdgpu_ip_block *ip_block)
>                 adev->gfx.me.num_me = 1;
>                 adev->gfx.me.num_pipe_per_me = 1;
>                 adev->gfx.me.num_queue_per_pipe = 1;
> -               adev->gfx.mec.num_mec = 2;
> +               adev->gfx.mec.num_mec = 1;
>                 adev->gfx.mec.num_pipe_per_mec = 4;
>                 adev->gfx.mec.num_queue_per_pipe = 4;  #ifdef CONFIG_DRM_AMDGPU_NAVI3X_USERQ
> --
> 2.49.0
>