[Intel-gfx] [PATCH 01/14] drm/i915: Get rid of the 64bit PLANE_CC_VAL mmio

[Souza, Jose]

On Wed, 2021-12-01 at 17:25 +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Let's just stick to 32bit mmio accesses so we can get rid
> of the bare "uncore" reg access in display code. The register
> are defined as 32bit in the spec anyway.
> 
> We could define a 64bit "de" variant I suppose, but doesn't
> really make much sense just for this one case, and when we
> start to use the DSB for this stuff we'd also need another
> 64bit variant for that. Just easier to do 32bit always.
> 
> While at it we can reorder stuff a bit so that we write the
> registers in order of increasing offset (more or less).

Reviewed-by: José Roberto de Souza <jose.souza at intel.com>

> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/display/skl_universal_plane.c | 11 +++++++----
>  drivers/gpu/drm/i915/i915_reg.h                    | 12 ++++++------
>  2 files changed, 13 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> index 28890876bdeb..845b99844ec6 100644
> --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
> +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> @@ -1047,6 +1047,13 @@ skl_program_plane_noarm(struct intel_plane *plane,
>  	intel_de_write_fw(dev_priv, PLANE_SIZE(pipe, plane_id),
>  			  (src_h << 16) | src_w);
>  
> +	if (intel_fb_is_rc_ccs_cc_modifier(fb->modifier)) {
> +		intel_de_write_fw(dev_priv, PLANE_CC_VAL(pipe, plane_id, 0),
> +				  lower_32_bits(plane_state->ccval));
> +		intel_de_write_fw(dev_priv, PLANE_CC_VAL(pipe, plane_id, 1),
> +				  upper_32_bits(plane_state->ccval));
> +	}
> +
>  	if (icl_is_hdr_plane(dev_priv, plane_id))
>  		intel_de_write_fw(dev_priv, PLANE_CUS_CTL(pipe, plane_id),
>  				  plane_state->cus_ctl);
> @@ -1054,10 +1061,6 @@ skl_program_plane_noarm(struct intel_plane *plane,
>  	if (fb->format->is_yuv && icl_is_hdr_plane(dev_priv, plane_id))
>  		icl_program_input_csc(plane, crtc_state, plane_state);
>  
> -	if (intel_fb_is_rc_ccs_cc_modifier(fb->modifier))
> -		intel_uncore_write64_fw(&dev_priv->uncore,
> -					PLANE_CC_VAL(pipe, plane_id), plane_state->ccval);
> -
>  	skl_write_plane_wm(plane, crtc_state);
>  
>  	intel_psr2_program_plane_sel_fetch(plane, crtc_state, plane_state, color_plane);
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 3450818802c2..3c0471f20e53 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -7363,12 +7363,12 @@ enum {
>  #define _PLANE_NV12_BUF_CFG_1_A		0x70278
>  #define _PLANE_NV12_BUF_CFG_2_A		0x70378
>  
> -#define _PLANE_CC_VAL_1_B			0x711b4
> -#define _PLANE_CC_VAL_2_B			0x712b4
> -#define _PLANE_CC_VAL_1(pipe)	_PIPE(pipe, _PLANE_CC_VAL_1_A, _PLANE_CC_VAL_1_B)
> -#define _PLANE_CC_VAL_2(pipe)	_PIPE(pipe, _PLANE_CC_VAL_2_A, _PLANE_CC_VAL_2_B)
> -#define PLANE_CC_VAL(pipe, plane)	\
> -	_MMIO_PLANE(plane, _PLANE_CC_VAL_1(pipe), _PLANE_CC_VAL_2(pipe))
> +#define _PLANE_CC_VAL_1_B		0x711b4
> +#define _PLANE_CC_VAL_2_B		0x712b4
> +#define _PLANE_CC_VAL_1(pipe, dw)	(_PIPE(pipe, _PLANE_CC_VAL_1_A, _PLANE_CC_VAL_1_B) + (dw) * 4)
> +#define _PLANE_CC_VAL_2(pipe, dw)	(_PIPE(pipe, _PLANE_CC_VAL_2_A, _PLANE_CC_VAL_2_B) + (dw) * 4)
> +#define PLANE_CC_VAL(pipe, plane, dw) \
> +	_MMIO_PLANE((plane), _PLANE_CC_VAL_1((pipe), (dw)), _PLANE_CC_VAL_2((pipe), (dw)))
>  
>  /* Input CSC Register Definitions */
>  #define _PLANE_INPUT_CSC_RY_GY_1_A	0x701E0