On Tue, Oct 16, 2018 at 12:58:24PM -0700, Srivatsa, Anusha wrote:
>
>
> >-----Original Message-----
> >From: Navare, Manasi D
> >Sent: Friday, October 5, 2018 4:23 PM
> >To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx
> >Cc: Navare, Manasi D <manasi.d.navare@xxxxxxxxx>; Jani Nikula
> ><jani.nikula@xxxxxxxxxxxxxxx>; Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>;
> >Srivatsa, Anusha <anusha.srivatsa@xxxxxxxxx>
> >Subject: [PATCH v5 20/28] drm/i915/dp: Configure i915 Picture parameter Set
> >registers during DSC enabling
> >
> >After encoder->pre_enable() hook, after link training sequence is completed, PPS
> >registers for DSC encoder are configured using the DSC state parameters in
> >intel_crtc_state as part of DSC enabling routine in the source. DSC enabling
> >routine is called after
> >encoder->pre_enable() before enbaling the pipe and after
> >compression is enabled on the sink.
> >
> >v3:
> >* Configure Pic_width/2 for each VDSC engine when two VDSC engines per pipe
> >are used (Manasi)
> >* Add DSC slice_row_per_frame in PPS16 (Manasi)
> >
> >v2:
> >* Enable PG2 power well for VDSC on eDP
> >
> >Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
> >Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx>
> >Cc: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
> >Signed-off-by: Manasi Navare <manasi.d.navare@xxxxxxxxx>
>
>
> >---
> > drivers/gpu/drm/i915/i915_drv.h | 2 +
> > drivers/gpu/drm/i915/intel_display.c | 6 +
> > drivers/gpu/drm/i915/intel_vdsc.c | 418 +++++++++++++++++++++++++++
> > 3 files changed, 426 insertions(+)
> >
> >diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> >index 93e57b271d3b..b49985f5d08c 100644
> >--- a/drivers/gpu/drm/i915/i915_drv.h
> >+++ b/drivers/gpu/drm/i915/i915_drv.h
> >@@ -3506,6 +3506,8 @@ extern void intel_rps_mark_interactive(struct
> >drm_i915_private *i915,
> > bool interactive);
> > extern bool intel_set_memory_cxsr(struct drm_i915_private *dev_priv,
> > bool enable);
> >+extern void intel_dsc_enable(struct intel_encoder *encoder,
> >+ struct intel_crtc_state *crtc_state);
> >
> > int i915_reg_read_ioctl(struct drm_device *dev, void *data,
> > struct drm_file *file);
> >diff --git a/drivers/gpu/drm/i915/intel_display.c
> >b/drivers/gpu/drm/i915/intel_display.c
> >index 4ebf7c83085c..f7cb41775c57 100644
> >--- a/drivers/gpu/drm/i915/intel_display.c
> >+++ b/drivers/gpu/drm/i915/intel_display.c
> >@@ -5480,6 +5480,12 @@ static void intel_encoders_pre_enable(struct
> >drm_crtc *crtc,
> >
> > if (encoder->pre_enable)
> > encoder->pre_enable(encoder, crtc_state, conn_state);
> >+
> >+ /*
> >+ * Enable and Configure Display Stream Compression in the
> >source
> >+ * if enabled in intel_crtc_state.
> >+ */
> >+ intel_dsc_enable(encoder, crtc_state);
> > }
> > }
> >
> >diff --git a/drivers/gpu/drm/i915/intel_vdsc.c
> >b/drivers/gpu/drm/i915/intel_vdsc.c
> >index 594196a9d0f4..1f2b5dc82f16 100644
> >--- a/drivers/gpu/drm/i915/intel_vdsc.c
> >+++ b/drivers/gpu/drm/i915/intel_vdsc.c
> >@@ -580,3 +580,421 @@ int intel_dp_compute_dsc_params(struct intel_dp
> >*intel_dp,
> >
> > return 0;
> > }
> >+
> >+static void intel_configure_pps_for_dsc_encoder(struct intel_encoder *encoder,
> >+ struct intel_crtc_state
> >*crtc_state) {
> >+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
> >+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> >+ struct drm_dsc_config *vdsc_cfg = &crtc_state->dp_dsc_cfg;
> >+ enum pipe pipe = crtc->pipe;
> >+ u32 pps_val = 0;
> >+ u32 rc_buf_thresh_dword[4];
> >+ u32 rc_range_params_dword[8];
> >+ u8 num_vdsc_instances = (crtc_state->dsc_params.dsc_split) ? 2 : 1;
> >+ int i = 0;
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_0 registers */
> >+ pps_val = DSC_VER_MAJ | vdsc_cfg->dsc_version_minor <<
> >+ DSC_VER_MIN_SHIFT |
> >+ vdsc_cfg->bits_per_component << DSC_BPC_SHIFT |
> >+ vdsc_cfg->line_buf_depth << DSC_LINE_BUF_DEPTH_SHIFT;
> >+ if (vdsc_cfg->block_pred_enable)
> >+ pps_val |= DSC_BLOCK_PREDICTION;
> >+ else
> >+ pps_val &= ~DSC_BLOCK_PREDICTION;
> >+ if (vdsc_cfg->convert_rgb)
> >+ pps_val |= DSC_COLOR_SPACE_CONVERSION;
> >+ else
> >+ pps_val &= ~DSC_COLOR_SPACE_CONVERSION;
> >+ if (vdsc_cfg->enable422)
> >+ pps_val |= DSC_422_ENABLE;
> >+ else
> >+ pps_val &= ~DSC_422_ENABLE;
> >+ if (vdsc_cfg->vbr_enable)
> >+ pps_val |= DSC_VBR_ENABLE;
> >+ else
> >+ pps_val &= ~DSC_VBR_ENABLE;
> >+
> >+ DRM_INFO("PPS0 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_0, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_0,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_0(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_0(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_1 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_BPP(vdsc_cfg->bits_per_pixel);
> >+ DRM_INFO("PPS1 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_1, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_1,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_1(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_2 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_PIC_HEIGHT(vdsc_cfg->pic_height) |
> >+ DSC_PIC_WIDTH(vdsc_cfg->pic_width / num_vdsc_instances);
> >+ DRM_INFO("PPS2 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_2, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_2,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_2(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_2(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_3 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_SLICE_HEIGHT(vdsc_cfg->slice_height) |
> >+ DSC_SLICE_WIDTH(vdsc_cfg->slice_width);
> >+ DRM_INFO("PPS3 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_3, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_3,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_3(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_3(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_4 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_INITIAL_XMIT_DELAY(vdsc_cfg->initial_xmit_delay) |
> >+ DSC_INITIAL_DEC_DELAY(vdsc_cfg->initial_dec_delay);
> >+ DRM_INFO("PPS4 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_4, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_4,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_4(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_4(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_5 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_SCALE_INC_INT(vdsc_cfg->scale_increment_interval) |
> >+ DSC_SCALE_DEC_INT(vdsc_cfg->scale_decrement_interval);
> >+ DRM_INFO("PPS5 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_5, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_5,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_5(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_5(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_6 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_INITIAL_SCALE_VALUE(vdsc_cfg->initial_scale_value) |
> >+ DSC_FIRST_LINE_BPG_OFFSET(vdsc_cfg->first_line_bpg_offset)
> >|
> >+ DSC_FLATNESS_MIN_QP(vdsc_cfg->flatness_min_qp) |
> >+ DSC_FLATNESS_MAX_QP(vdsc_cfg->flatness_max_qp);
> >+ DRM_INFO("PPS6 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_6, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_6,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_6(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_6(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_7 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_SLICE_BPG_OFFSET(vdsc_cfg->slice_bpg_offset) |
> >+ DSC_NFL_BPG_OFFSET(vdsc_cfg->nfl_bpg_offset);
> >+ DRM_INFO("PPS7 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_7, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_7,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_7(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_7(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_8 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_FINAL_OFFSET(vdsc_cfg->final_offset) |
> >+ DSC_INITIAL_OFFSET(vdsc_cfg->initial_offset);
> >+ DRM_INFO("PPS8 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_8, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_8,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_8(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_8(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_9 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_RC_MODEL_SIZE(DSC_RC_MODEL_SIZE_CONST) |
> >+ DSC_RC_EDGE_FACTOR(DSC_RC_EDGE_FACTOR_CONST);
> >+ DRM_INFO("PPS9 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_9, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_9,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_9(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_9(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate PICTURE_PARAMETER_SET_10 registers */
> >+ pps_val = 0;
> >+ pps_val |= DSC_RC_QUANT_INC_LIMIT0(vdsc_cfg-
> >>rc_quant_incr_limit0) |
> >+ DSC_RC_QUANT_INC_LIMIT1(vdsc_cfg->rc_quant_incr_limit1) |
> >+ DSC_RC_TARGET_OFF_HIGH(DSC_RC_TGT_OFFSET_HI_CONST) |
> >+ DSC_RC_TARGET_OFF_LOW(DSC_RC_TGT_OFFSET_LO_CONST);
> >+ DRM_INFO("PPS10 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_10, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_10,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_10(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_10(pipe),
> >+ pps_val);
> >+ }
> >+
> >+ /* Populate the RC_BUF_THRESH registers */
> >+ memset(rc_buf_thresh_dword, 0, sizeof(rc_buf_thresh_dword));
> >+ for (i = 0; i < DSC_NUM_BUF_RANGES - 1; i++) {
> >+ rc_buf_thresh_dword[i/4] |= (u32)(vdsc_cfg->rc_buf_thresh[i] <<
> >+ BITS_PER_BYTE * (i % 4));
> >+ DRM_INFO(" RC_BUF_THRESH%d = 0x%08x\n", i,
> >+ rc_buf_thresh_dword[i/4]);
> >+ }
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_RC_BUF_THRESH_0,
> >rc_buf_thresh_dword[0]);
> >+ I915_WRITE(DSCA_RC_BUF_THRESH_0_UDW,
> >rc_buf_thresh_dword[1]);
> >+ I915_WRITE(DSCA_RC_BUF_THRESH_1,
> >rc_buf_thresh_dword[2]);
> >+ I915_WRITE(DSCA_RC_BUF_THRESH_1_UDW,
> >rc_buf_thresh_dword[3]);
> >+ if (crtc_state->dsc_params.dsc_split) {
> >+ I915_WRITE(DSCC_RC_BUF_THRESH_0,
> >+ rc_buf_thresh_dword[0]);
> >+ I915_WRITE(DSCC_RC_BUF_THRESH_0_UDW,
> >+ rc_buf_thresh_dword[1]);
> >+ I915_WRITE(DSCC_RC_BUF_THRESH_1,
> >+ rc_buf_thresh_dword[2]);
> >+ I915_WRITE(DSCC_RC_BUF_THRESH_1_UDW,
> >+ rc_buf_thresh_dword[3]);
> >+ }
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_RC_BUF_THRESH_0(pipe),
> >+ rc_buf_thresh_dword[0]);
> >+ I915_WRITE(ICL_DSC0_RC_BUF_THRESH_0_UDW(pipe),
> >+ rc_buf_thresh_dword[1]);
> >+ I915_WRITE(ICL_DSC0_RC_BUF_THRESH_1(pipe),
> >+ rc_buf_thresh_dword[2]);
> >+ I915_WRITE(ICL_DSC0_RC_BUF_THRESH_1_UDW(pipe),
> >+ rc_buf_thresh_dword[3]);
> >+ if (crtc_state->dsc_params.dsc_split) {
> >+ I915_WRITE(ICL_DSC1_RC_BUF_THRESH_0(pipe),
> >+ rc_buf_thresh_dword[0]);
> >+ I915_WRITE(ICL_DSC1_RC_BUF_THRESH_0_UDW(pipe),
> >+ rc_buf_thresh_dword[1]);
> >+ I915_WRITE(ICL_DSC1_RC_BUF_THRESH_1(pipe),
> >+ rc_buf_thresh_dword[2]);
> >+ I915_WRITE(ICL_DSC1_RC_BUF_THRESH_1_UDW(pipe),
> >+ rc_buf_thresh_dword[3]);
> >+ }
> >+ }
> >+
> >+ /* Populate the RC_RANGE_PARAMETERS registers */
> >+ memset(rc_range_params_dword, 0, sizeof(rc_range_params_dword));
> >+ for (i = 0; i < DSC_NUM_BUF_RANGES; i++) {
> >+ rc_range_params_dword[i/2] |= (u32)(((vdsc_cfg-
> >>rc_range_params[i].range_bpg_offset <<
> >+ RC_BPG_OFFSET_SHIFT) |
> >+ (vdsc_cfg-
> >>rc_range_params[i].range_max_qp <<
> >+ RC_MAX_QP_SHIFT) |
> >+ (vdsc_cfg-
> >>rc_range_params[i].range_min_qp <<
> >+ RC_MIN_QP_SHIFT)) << 16 *
> >(i % 2));
> >+ DRM_INFO(" RC_RANGE_PARAM_%d = 0x%08x\n", i,
> >+ rc_range_params_dword[i/2]);
> >+ }
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_RC_RANGE_PARAMETERS_0,
> >+ rc_range_params_dword[0]);
> >+ I915_WRITE(DSCA_RC_RANGE_PARAMETERS_0_UDW,
> >+ rc_range_params_dword[1]);
> >+ I915_WRITE(DSCA_RC_RANGE_PARAMETERS_1,
> >+ rc_range_params_dword[2]);
> >+ I915_WRITE(DSCA_RC_RANGE_PARAMETERS_1_UDW,
> >+ rc_range_params_dword[3]);
> >+ I915_WRITE(DSCA_RC_RANGE_PARAMETERS_2,
> >+ rc_range_params_dword[4]);
> >+ I915_WRITE(DSCA_RC_RANGE_PARAMETERS_2_UDW,
> >+ rc_range_params_dword[5]);
> >+ I915_WRITE(DSCA_RC_RANGE_PARAMETERS_3,
> >+ rc_range_params_dword[6]);
> >+ I915_WRITE(DSCA_RC_RANGE_PARAMETERS_3_UDW,
> >+ rc_range_params_dword[7]);
> >+ if (crtc_state->dsc_params.dsc_split) {
> >+ I915_WRITE(DSCC_RC_RANGE_PARAMETERS_0,
> >+ rc_range_params_dword[0]);
> >+ I915_WRITE(DSCC_RC_RANGE_PARAMETERS_0_UDW,
> >+ rc_range_params_dword[1]);
> >+ I915_WRITE(DSCC_RC_RANGE_PARAMETERS_1,
> >+ rc_range_params_dword[2]);
> >+ I915_WRITE(DSCC_RC_RANGE_PARAMETERS_1_UDW,
> >+ rc_range_params_dword[3]);
> >+ I915_WRITE(DSCC_RC_RANGE_PARAMETERS_2,
> >+ rc_range_params_dword[4]);
> >+ I915_WRITE(DSCC_RC_RANGE_PARAMETERS_2_UDW,
> >+ rc_range_params_dword[5]);
> >+ I915_WRITE(DSCC_RC_RANGE_PARAMETERS_3,
> >+ rc_range_params_dword[6]);
> >+ I915_WRITE(DSCC_RC_RANGE_PARAMETERS_3_UDW,
> >+ rc_range_params_dword[7]);
> >+ }
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_0(pipe),
> >+ rc_range_params_dword[0]);
> >+ I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_0_UDW(pipe),
> >+ rc_range_params_dword[1]);
> >+ I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_1(pipe),
> >+ rc_range_params_dword[2]);
> >+ I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_1_UDW(pipe),
> >+ rc_range_params_dword[3]);
> >+ I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_2(pipe),
> >+ rc_range_params_dword[4]);
> >+ I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_2_UDW(pipe),
> >+ rc_range_params_dword[5]);
> >+ I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_3(pipe),
> >+ rc_range_params_dword[6]);
> >+ I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_3_UDW(pipe),
> >+ rc_range_params_dword[7]);
> >+ if (crtc_state->dsc_params.dsc_split) {
> >+
> > I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_0(pipe),
> >+ rc_range_params_dword[0]);
> >+
> > I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_0_UDW(pipe),
> >+ rc_range_params_dword[1]);
> >+
> > I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_1(pipe),
> >+ rc_range_params_dword[2]);
> >+
> > I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_1_UDW(pipe),
> >+ rc_range_params_dword[3]);
> >+
> > I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_2(pipe),
> >+ rc_range_params_dword[4]);
> >+
> > I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_2_UDW(pipe),
> >+ rc_range_params_dword[5]);
> >+
> > I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_3(pipe),
> >+ rc_range_params_dword[6]);
> >+
> > I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_3_UDW(pipe),
> >+ rc_range_params_dword[7]);
> >+ }
> >+ }
>
> Any specific reason for PPS16 to be after RC_RANGE_PARAMETERS and RC_BUF_THRESH?
>
> Anusha
Thats just how its ordered in the bspec.
Manasi
> >+ /* Populate Picture parameter set 16 */
> >+ pps_val = 0;
> >+ pps_val |= DSC_SLICE_CHUNK_SIZE(vdsc_cfg->slice_chunk_size) |
> >+ DSC_SLICE_PER_LINE((vdsc_cfg->pic_width /
> >num_vdsc_instances) /
> >+ vdsc_cfg->slice_width) |
> >+ DSC_SLICE_ROW_PER_FRAME(vdsc_cfg->pic_height /
> >+ vdsc_cfg->slice_height);
> >+ DRM_INFO("PPS16 = 0x%08x\n", pps_val);
> >+ if (encoder->type == INTEL_OUTPUT_EDP) {
> >+ I915_WRITE(DSCA_PICTURE_PARAMETER_SET_16, pps_val);
> >+ /*
> >+ * If 2 VDSC instances are needed, configure PPS for second
> >+ * VDSC
> >+ */
> >+ if (crtc_state->dsc_params.dsc_split)
> >+ I915_WRITE(DSCC_PICTURE_PARAMETER_SET_16,
> >pps_val);
> >+ } else {
> >+ I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_16(pipe),
> >pps_val);
> >+ if (crtc_state->dsc_params.dsc_split)
> >+
> > I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_16(pipe),
> >+ pps_val);
> >+ }
> >+}
> >+
> >+void intel_dsc_enable(struct intel_encoder *encoder,
> >+ struct intel_crtc_state *crtc_state) {
> >+
> >+ if (!crtc_state->dsc_params.compression_enable)
> >+ return;
> >+
> >+ intel_configure_pps_for_dsc_encoder(encoder, crtc_state);
> >+
> >+ return;
> >+}
> >--
> >2.18.0
>
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