[AMD Official Use Only - Internal Distribution Only]
Thanks,Ray.
BR,
Changfeng.
-----Original Message-----
From: Huang, Ray <Ray.Huang@xxxxxxx>
Sent: Thursday, February 25, 2021 1:42 PM
To: Zhu, Changfeng <Changfeng.Zhu@xxxxxxx>
Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx; Clements, John <John.Clements@xxxxxxx>
Subject: Re: [PATCH] drm/amdgpu: decline max_me for mec2_fw remove in renoir/arcturus
On Wed, Feb 24, 2021 at 05:10:55PM +0800, Zhu, Changfeng wrote:
> From: changzhu <Changfeng.Zhu@xxxxxxx>
>
> From: Changfeng <Changfeng.Zhu@xxxxxxx>
>
> The value of max_me in amdgpu_gfx_rlc_setup_cp_table should reduce to
> 4 when mec2_fw is removed on asic renoir/arcturus. Or it will cause
> kernel NULL pointer when modprobe driver.
>
> Change-Id: I268610e85f6acd9200478d0ab1518349ff81469b
> Signed-off-by: Changfeng <Changfeng.Zhu@xxxxxxx>
Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index 2f56adebbb31..300a07227597 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -1890,7 +1890,10 @@ static void gfx_v9_0_enable_lbpw(struct
> amdgpu_device *adev, bool enable)
>
> static int gfx_v9_0_cp_jump_table_num(struct amdgpu_device *adev) {
> - return 5;
> + if (gfx_v9_0_load_mec2_fw_bin_support(adev))
> + return 5;
> + else
> + return 4;
> }
>
> static int gfx_v9_0_rlc_init(struct amdgpu_device *adev)
> --
> 2.17.1
>
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