[PATCH 10/14] drm/amdgpu: add rv770_get_memory_type to set the GDDR5 flag

[Deucher, Alexander]

> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf
> Of Huang Rui
> Sent: Tuesday, August 30, 2016 7:50 AM
> To: amd-gfx at lists.freedesktop.org; Deucher, Alexander
> Cc: Wang, Ken; Yu, Hui; Huang, Ray; Huan, Alvin
> Subject: [PATCH 10/14] drm/amdgpu: add rv770_get_memory_type to set
> the GDDR5 flag
> 
> Add rv770_get_memory_type to set mem_gddr5 flag, because it will be
> used on the whole si dpm part.
> 
> Change-Id: I60f7ef38775c3b27e475f38f939905483fbb56f5
> Signed-off-by: Huang Rui <ray.huang at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/si_dpm.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
> b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
> index 5f1e5fe..563aeea 100644
> --- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
> @@ -6433,8 +6433,24 @@ static void si_set_pcie_lane_width_in_smc(struct
> amdgpu_device *adev,
>  	}
>  }
> 
> +void rv770_get_memory_type(struct amdgpu_device *adev)

adev->mc.vram_type should be set in the gmc module.  Use that instead of pi->mem_gddr5.  See ci_dpm.c for example.

Alex

> +{
> +	struct rv7xx_power_info *pi = rv770_get_pi(adev);
> +	u32 tmp;
> +
> +	tmp = RREG32(MC_SEQ_MISC0);
> +
> +	if (((tmp & MC_SEQ_MISC0_GDDR5_MASK) >>
> MC_SEQ_MISC0_GDDR5_SHIFT) ==
> +	    MC_SEQ_MISC0_GDDR5_VALUE)
> +		pi->mem_gddr5 = true;
> +	else
> +		pi->mem_gddr5 = false;
> +
> +}
> +
>  static void si_dpm_setup_asic(struct amdgpu_device *adev)
>  {
> +	rv770_get_memory_type(adev);
>  	si_read_clock_registers(adev);
>  	si_enable_acpi_power_management(adev);
>  }
> --
> 2.7.4
> 
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