[PATCH 03/23] drm/i915/vrr: Introduce new field for VRR mode

[Garg, Nemesa]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Ankit
> Nautiyal
> Sent: Monday, November 11, 2024 2:42 PM
> To: intel-gfx at lists.freedesktop.org
> Cc: intel-xe at lists.freedesktop.org; jani.nikula at linux.intel.com;
> ville.syrjala at linux.intel.com; Golani, Mitulkumar Ajitkumar
> <mitulkumar.ajitkumar.golani at intel.com>
> Subject: [PATCH 03/23] drm/i915/vrr: Introduce new field for VRR mode
> 
> VRR timing generator can be used in multiple modes: dynamic vrr, fixed refresh
> rate and content matched refresh rate (cmrr).
> Currently we support dynamic vrr mode and cmrr mode, so add a new member to
> track in which mode the VRR timing generator is used.
> 
> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display_types.h | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h
> b/drivers/gpu/drm/i915/display/intel_display_types.h
> index d3a1aa7c919f..a1b67e76d91c 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -913,6 +913,12 @@ void intel_io_mmio_fw_write(void *ctx, i915_reg_t reg,
> u32 val);
> 
>  typedef void (*intel_io_reg_write)(void *ctx, i915_reg_t reg, u32 val);
> 
> +enum intel_vrrtg_mode {
> +	INTEL_VRRTG_MODE_NONE,
> +	INTEL_VRRTG_MODE_VRR,
> +	INTEL_VRRTG_MODE_CMRR,
> +};
> +
Here INTEL_VRRTG_MODE_NONE mode means fixed refresh rate mode ?
And if not should we add this as member for future purpose?

Thanks,
Nemesa
>  struct intel_crtc_state {
>  	/*
>  	 * uapi (drm) state. This is the software state shown to userspace.
> @@ -1286,6 +1292,7 @@ struct intel_crtc_state {
>  		u8 pipeline_full;
>  		u16 flipline, vmin, vmax, guardband;
>  		u32 vsync_end, vsync_start;
> +		enum intel_vrrtg_mode mode;
>  	} vrr;
> 
>  	/* Content Match Refresh Rate state */
> --
> 2.45.2