[PART1 PATCH 2/8] drm/amdgpu: add parse clock gating state

[Felix Kuehling]

This could be done with much less code duplication:

	static const struct {
		u32 flag;
		const char *name;
	} clocks[] = {
		{AMD_CG_SUPPORT_GFX_MGCG, "Medium Grain Clock Gating"},
		{AMD_CG_SUPPORT_GFX_MGLS, "Medium Grain memory Light Sleep"},
		...
		{0, NULL}
	};

	for (i = 0; clocks[i].flag; i++)
		seq_printf(m, "\t%s: %s\n",
			clocks[i].name,
			(flags & clocks[i].flag) ? "On" : "Off");

Regards,
  Felix

On 17-01-05 08:49 AM, Huang Rui wrote:
> Signed-off-by: Huang Rui <ray.huang at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 95 ++++++++++++++++++++++++++++++++++
>  1 file changed, 95 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> index 7aa561d..431bae4 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
> @@ -1536,6 +1536,99 @@ static int amdgpu_debugfs_pm_info_pp(struct seq_file *m, struct amdgpu_device *a
>  	return 0;
>  }
>  
> +static void amdgpu_parse_cg_state(struct seq_file *m, u32 flags)
> +{
> +       if (flags & AMD_CG_SUPPORT_GFX_MGCG)
> +               seq_printf(m, "\tMedium Grain Clock Gating: On\n");
> +       else
> +               seq_printf(m, "\tMedium Grain Clock Gating: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_GFX_MGLS)
> +               seq_printf(m, "\tMedium Grain memory Light Sleep: On\n");
> +       else
> +               seq_printf(m, "\tMedium Grain memory Light Sleep: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_GFX_CGCG)
> +               seq_printf(m, "\tCoarse Grain Clock Gating: On\n");
> +       else
> +               seq_printf(m, "\tCoarse Grain Clock Gating: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_GFX_CGLS)
> +               seq_printf(m, "\tCoarse Grain memory Light Sleep: On\n");
> +       else
> +               seq_printf(m, "\tCoarse Grain memory Light Sleep: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_GFX_CGTS)
> +               seq_printf(m, "\tCoarse Grain Tree Shader: On\n");
> +       else
> +               seq_printf(m, "\tCoarse Grain Tree Shader: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_GFX_CGTS_LS)
> +               seq_printf(m, "\tCoarse Grain Tree Shader Light Sleep: On\n");
> +       else
> +               seq_printf(m, "\tCoarse Grain Tree Shader Light Sleep: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_GFX_CP_LS)
> +               seq_printf(m, "\tCommand Processor Light Sleep: On\n");
> +       else
> +               seq_printf(m, "\tCommand Processor Light Sleep: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_GFX_RLC_LS)
> +               seq_printf(m, "\tRun List Controller Light Sleep: On\n");
> +       else
> +               seq_printf(m, "\tRun List Controller Light Sleep: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_MC_LS)
> +               seq_printf(m, "\tMemory Controller Light Sleep: On\n");
> +       else
> +               seq_printf(m, "\tMemory Controller Light Sleep: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_MC_MGCG)
> +               seq_printf(m, "\tMemory Controller Medium Grain Clock Gating: On\n");
> +       else
> +               seq_printf(m, "\tMemory Controller Medium Grain Clock Gating: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_SDMA_LS)
> +               seq_printf(m, "\tSystem Direct Memory Access Light Sleep: On\n");
> +       else
> +               seq_printf(m, "\tSystem Direct Memory Access Light Sleep: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_SDMA_MGCG)
> +               seq_printf(m, "\tSystem Direct Memory Access Medium Grain Clock Gating: On\n");
> +       else
> +               seq_printf(m, "\tSystem Direct Memory Access Medium Grain Clock Gating: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_BIF_LS)
> +               seq_printf(m, "\tBus Interface Light Sleep: On\n");
> +       else
> +               seq_printf(m, "\tBus Interface Light Sleep: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_UVD_MGCG)
> +               seq_printf(m, "\tUniversal Video Decoder Medium Grain Clock Gating: On\n");
> +       else
> +               seq_printf(m, "\tUniversal Video Decoder Medium Grain Clock Gating: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_VCE_MGCG)
> +               seq_printf(m, "\tVideo Coding Engine Medium Grain Clock Gating: On\n");
> +       else
> +               seq_printf(m, "\tVideo Coding Engine Medium Grain Clock Gating: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_HDP_LS)
> +               seq_printf(m, "\tHost Data Path Light Sleep: On\n");
> +       else
> +               seq_printf(m, "\tHost Data Path Light Sleep: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_HDP_MGCG)
> +               seq_printf(m, "\tHost Data Path Medium Grain Clock Gating: On\n");
> +       else
> +               seq_printf(m, "\tHost Data Path Medium Grain Clock Gating: Off\n");
> +
> +       if (flags & AMD_CG_SUPPORT_ROM_MGCG)
> +               seq_printf(m, "\tRom Medium Grain Clock Gating: On\n");
> +       else
> +               seq_printf(m, "\tRom Medium Grain Clock Gating: Off\n");
> +}
> +
>  static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data)
>  {
>  	struct drm_info_node *node = (struct drm_info_node *) m->private;
> @@ -1546,6 +1639,8 @@ static int amdgpu_debugfs_pm_info(struct seq_file *m, void *data)
>  
>  	amdgpu_clockgating_state(adev, &flags);
>  	seq_printf(m, "Clock Gating Flags Mask: 0x%x\n", flags);
> +	amdgpu_parse_cg_state(m, flags);
> +	seq_printf(m, "\n");
>  
>  	if (!adev->pm.dpm_enabled) {
>  		seq_printf(m, "dpm not enabled\n");