drm/i915/vdsc: Add func to get no. of vdsc instances per pipe

We have a function that gets us the total of the vdsc engines being
used but not the no. of vdsc instances being used by each pipe.

--v6
-Change function to static

--v7
-Shorten name to intel_dsc_get_vdsc_per_pipe

Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230828054300.560559-4-suraj.kandpal@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c
index 94af579b63d30a1e15afd8d18eb87adb7fb44f6f..fbe8ce9fe1ab36e0fdbfaee4f7bd8e412a770aaf 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_vdsc.c
+++ b/drivers/gpu/drm/i915/display/intel_vdsc.c
@@ -356,9 +356,14 @@ intel_dsc_power_domain(struct intel_crtc *crtc, enum transcoder cpu_transcoder)
                return POWER_DOMAIN_TRANSCODER_VDSC_PW2;
 }
 
+static int intel_dsc_get_vdsc_per_pipe(const struct intel_crtc_state *crtc_state)
+{
+       return crtc_state->dsc.dsc_split ? 2 : 1;
+}
+
 int intel_dsc_get_num_vdsc_instances(const struct intel_crtc_state *crtc_state)
 {
-       int num_vdsc_instances = (crtc_state->dsc.dsc_split) ? 2 : 1;
+       int num_vdsc_instances = intel_dsc_get_vdsc_per_pipe(crtc_state);
 
        if (crtc_state->bigjoiner_pipes)
                num_vdsc_instances *= 2;
@@ -378,6 +383,7 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
        u32 rc_range_params_dword[8];
        int i = 0;
        int num_vdsc_instances = intel_dsc_get_num_vdsc_instances(crtc_state);
+       int vdsc_instances_per_pipe = intel_dsc_get_vdsc_per_pipe(crtc_state);
 
        /* Populate PICTURE_PARAMETER_SET_0 registers */
        pps_val = DSC_VER_MAJ | vdsc_cfg->dsc_version_minor <<
@@ -407,14 +413,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_0,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_0(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_0(pipe),
                                       pps_val);
@@ -431,14 +437,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_1,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_1(pipe),
                                       pps_val);
@@ -456,14 +462,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_2,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_2(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_2(pipe),
                                       pps_val);
@@ -481,14 +487,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_3,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_3(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_3(pipe),
                                       pps_val);
@@ -506,14 +512,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_4,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_4(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_4(pipe),
                                       pps_val);
@@ -531,14 +537,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_5,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_5(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_5(pipe),
                                       pps_val);
@@ -558,14 +564,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_6,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_6(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_6(pipe),
                                       pps_val);
@@ -583,14 +589,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_7,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_7(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_7(pipe),
                                       pps_val);
@@ -608,14 +614,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_8,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_8(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_8(pipe),
                                       pps_val);
@@ -633,14 +639,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_9,
                                       pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_9(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_9(pipe),
                                       pps_val);
@@ -660,14 +666,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       DSCC_PICTURE_PARAMETER_SET_10, pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_10(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_10(pipe),
                                       pps_val);
@@ -688,14 +694,14 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                 * If 2 VDSC instances are needed, configure PPS for second
                 * VDSC
                 */
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       DSCC_PICTURE_PARAMETER_SET_16, pps_val);
        } else {
                intel_de_write(dev_priv,
                               ICL_DSC0_PICTURE_PARAMETER_SET_16(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       ICL_DSC1_PICTURE_PARAMETER_SET_16(pipe),
                                       pps_val);
@@ -709,7 +715,7 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                intel_de_write(dev_priv,
                               MTL_DSC0_PICTURE_PARAMETER_SET_17(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       MTL_DSC1_PICTURE_PARAMETER_SET_17(pipe),
                                       pps_val);
@@ -722,7 +728,7 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                intel_de_write(dev_priv,
                               MTL_DSC0_PICTURE_PARAMETER_SET_18(pipe),
                               pps_val);
-               if (crtc_state->dsc.dsc_split)
+               if (vdsc_instances_per_pipe > 1)
                        intel_de_write(dev_priv,
                                       MTL_DSC1_PICTURE_PARAMETER_SET_18(pipe),
                                       pps_val);
@@ -746,7 +752,7 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                               rc_buf_thresh_dword[2]);
                intel_de_write(dev_priv, DSCA_RC_BUF_THRESH_1_UDW,
                               rc_buf_thresh_dword[3]);
-               if (crtc_state->dsc.dsc_split) {
+               if (vdsc_instances_per_pipe > 1) {
                        intel_de_write(dev_priv, DSCC_RC_BUF_THRESH_0,
                                       rc_buf_thresh_dword[0]);
                        intel_de_write(dev_priv, DSCC_RC_BUF_THRESH_0_UDW,
@@ -765,7 +771,7 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                               rc_buf_thresh_dword[2]);
                intel_de_write(dev_priv, ICL_DSC0_RC_BUF_THRESH_1_UDW(pipe),
                               rc_buf_thresh_dword[3]);
-               if (crtc_state->dsc.dsc_split) {
+               if (vdsc_instances_per_pipe > 1) {
                        intel_de_write(dev_priv,
                                       ICL_DSC1_RC_BUF_THRESH_0(pipe),
                                       rc_buf_thresh_dword[0]);
@@ -811,7 +817,7 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                               rc_range_params_dword[6]);
                intel_de_write(dev_priv, DSCA_RC_RANGE_PARAMETERS_3_UDW,
                               rc_range_params_dword[7]);
-               if (crtc_state->dsc.dsc_split) {
+               if (vdsc_instances_per_pipe > 1) {
                        intel_de_write(dev_priv, DSCC_RC_RANGE_PARAMETERS_0,
                                       rc_range_params_dword[0]);
                        intel_de_write(dev_priv,
@@ -854,7 +860,7 @@ static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state)
                intel_de_write(dev_priv,
                               ICL_DSC0_RC_RANGE_PARAMETERS_3_UDW(pipe),
                               rc_range_params_dword[7]);
-               if (crtc_state->dsc.dsc_split) {
+               if (vdsc_instances_per_pipe > 1) {
                        intel_de_write(dev_priv,
                                       ICL_DSC1_RC_RANGE_PARAMETERS_0(pipe),
                                       rc_range_params_dword[0]);
@@ -960,6 +966,7 @@ void intel_dsc_enable(const struct intel_crtc_state *crtc_state)
        struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
        u32 dss_ctl1_val = 0;
        u32 dss_ctl2_val = 0;
+       int vdsc_instances_per_pipe = intel_dsc_get_vdsc_per_pipe(crtc_state);
 
        if (!crtc_state->dsc.compression_enable)
                return;
@@ -967,7 +974,7 @@ void intel_dsc_enable(const struct intel_crtc_state *crtc_state)
        intel_dsc_pps_configure(crtc_state);
 
        dss_ctl2_val |= LEFT_BRANCH_VDSC_ENABLE;
-       if (crtc_state->dsc.dsc_split) {
+       if (vdsc_instances_per_pipe > 1) {
                dss_ctl2_val |= RIGHT_BRANCH_VDSC_ENABLE;
                dss_ctl1_val |= JOINER_ENABLE;
        }
@@ -1003,6 +1010,7 @@ void intel_dsc_get_config(struct intel_crtc_state *crtc_state)
        enum intel_display_power_domain power_domain;
        intel_wakeref_t wakeref;
        u32 dss_ctl1, dss_ctl2, pps0 = 0, pps1 = 0, pps_temp0, pps_temp1;
+       int vdsc_instances_per_pipe;
 
        if (!intel_dsc_source_support(crtc_state))
                return;
@@ -1025,10 +1033,12 @@ void intel_dsc_get_config(struct intel_crtc_state *crtc_state)
 
        /* FIXME: add more state readout as needed */
 
+       vdsc_instances_per_pipe = intel_dsc_get_vdsc_per_pipe(crtc_state);
+
        /* PPS0 & PPS1 */
        if (!is_pipe_dsc(crtc, cpu_transcoder)) {
                pps1 = intel_de_read(dev_priv, DSCA_PICTURE_PARAMETER_SET_1);
-               if (crtc_state->dsc.dsc_split) {
+               if (vdsc_instances_per_pipe > 1) {
                        pps_temp1 = intel_de_read(dev_priv, DSCC_PICTURE_PARAMETER_SET_1);
                        drm_WARN_ON(&dev_priv->drm, pps1 != pps_temp1);
                }
@@ -1037,7 +1047,7 @@ void intel_dsc_get_config(struct intel_crtc_state *crtc_state)
                                     ICL_DSC0_PICTURE_PARAMETER_SET_0(pipe));
                pps1 = intel_de_read(dev_priv,
                                     ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe));
-               if (crtc_state->dsc.dsc_split) {
+               if (vdsc_instances_per_pipe > 1) {
                        pps_temp0 = intel_de_read(dev_priv,
                                                  ICL_DSC1_PICTURE_PARAMETER_SET_0(pipe));
                        pps_temp1 = intel_de_read(dev_priv,