On Mon, Mar 19, 2018 at 12:29:29PM +1100, Stephen Rothwell wrote:
> Hi all,
>
> Today's linux-next merge of the drm-misc tree got a conflict in:
>
> drivers/gpu/drm/i915/intel_color.c
>
> between commit:
>
> db61d160b3ed ("drm/i915: Remove the pointless 1:1 matrix copy")
>
> from the drm tree and commit:
>
> d5517a39dce4 ("drm/i915: Remove the blob->data casts")
>
> from the drm-misc tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging. You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
>
> --
> Cheers,
> Stephen Rothwell
>
> diff --cc drivers/gpu/drm/i915/intel_color.c
> index 89ab0f70aa22,768f1c26080e..000000000000
> --- a/drivers/gpu/drm/i915/intel_color.c
> +++ b/drivers/gpu/drm/i915/intel_color.c
> @@@ -140,28 -140,20 +140,27 @@@ static void ilk_load_csc_matrix(struct
> int i, pipe = intel_crtc->pipe;
> uint16_t coeffs[9] = { 0, };
> struct intel_crtc_state *intel_crtc_state =
> to_intel_crtc_state(crtc_state);
> + bool limited_color_range = false;
> +
> + /*
> + * FIXME if there's a gamma LUT after the CSC, we should
> + * do the range compression using the gamma LUT instead.
> + */
> + if (INTEL_GEN(dev_priv) >= 8 || IS_HASWELL(dev_priv))
> + limited_color_range = intel_crtc_state->limited_color_range;
>
> if (intel_crtc_state->ycbcr420) {
> - i9xx_load_ycbcr_conversion_matrix(intel_crtc);
> + ilk_load_ycbcr_conversion_matrix(intel_crtc);
> return;
> } else if (crtc_state->ctm) {
> - struct drm_color_ctm *ctm =
> - (struct drm_color_ctm *)crtc_state->ctm->data;
> + struct drm_color_ctm *ctm = crtc_state->ctm->data;
> - uint64_t input[9] = { 0, };
> + const u64 *input;
> + u64 temp[9];
Yep. Looks correct.
>
> - if (intel_crtc_state->limited_color_range) {
> - ctm_mult_by_limited(input, ctm->matrix);
> - } else {
> - for (i = 0; i < ARRAY_SIZE(input); i++)
> - input[i] = ctm->matrix[i];
> - }
> + if (limited_color_range)
> + input = ctm_mult_by_limited(temp, ctm->matrix);
> + else
> + input = ctm->matrix;
>
> /*
> * Convert fixed point S31.32 input to format supported by the
--
Ville Syrjälä
Intel OTC
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