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authorJani Nikula <jani.nikula@intel.com>2020-12-08 15:33:52 +0300
committerJani Nikula <jani.nikula@intel.com>2020-12-10 11:49:27 +0300
commit420798a09da722c6ba46fffae842dd6bee7826d7 (patch)
tree213903d7c4253997c1c6e30fca0e11b9501a6143 /drivers/gpu/drm/i915
parente5b9cbd38135f3889dd3c83293c5815db9124804 (diff)
downloadlinux-420798a09da722c6ba46fffae842dd6bee7826d7.tar.xz
drm/i915/dsc: make rc_model_size an encoder defined value
Move the initialization of the rc_model_size from the common code into encoder code, allowing different encoders to specify the size according to their needs. Keep using the hard coded value in the encoders for now to make this a non-functional change. Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/6843c4f6958619f7389180aa92fded7b9fdbb4ba.1607429866.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915')
-rw-r--r--drivers/gpu/drm/i915/display/icl_dsi.c3
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.c8
-rw-r--r--drivers/gpu/drm/i915/display/intel_vdsc.c2
3 files changed, 11 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index a9439b415603..676e40172fe9 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -1535,6 +1535,9 @@ static int gen11_dsi_dsc_compute_config(struct intel_encoder *encoder,
vdsc_cfg->convert_rgb = true;
+ /* FIXME: initialize from VBT */
+ vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST;
+
ret = intel_dsc_compute_params(encoder, crtc_state);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index cb5e42c3ecd5..b2bc0c8c39c7 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2289,6 +2289,14 @@ static int intel_dp_dsc_compute_params(struct intel_encoder *encoder,
u8 line_buf_depth;
int ret;
+ /*
+ * RC_MODEL_SIZE is currently a constant across all configurations.
+ *
+ * FIXME: Look into using sink defined DPCD DP_DSC_RC_BUF_BLK_SIZE and
+ * DP_DSC_RC_BUF_SIZE for this.
+ */
+ vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST;
+
ret = intel_dsc_compute_params(encoder, crtc_state);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c
index 22d08679844f..f58cc5700784 100644
--- a/drivers/gpu/drm/i915/display/intel_vdsc.c
+++ b/drivers/gpu/drm/i915/display/intel_vdsc.c
@@ -454,8 +454,6 @@ int intel_dsc_compute_params(struct intel_encoder *encoder,
else if (vdsc_cfg->bits_per_component == 12)
vdsc_cfg->mux_word_size = DSC_MUX_WORD_SIZE_12_BPC;
- /* RC_MODEL_SIZE is a constant across all configurations */
- vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST;
/* InitialScaleValue is a 6 bit value with 3 fractional bits (U3.3) */
vdsc_cfg->initial_scale_value = (vdsc_cfg->rc_model_size << 3) /
(vdsc_cfg->rc_model_size - vdsc_cfg->initial_offset);