In preparation of ultrajoiner, use number of joined pipes in the dsc
helpers to compute dsc slices and max compressed bpp, instead of using
the joiner flag.

Signed-off-by: Ankit Nautiyal <[email protected]>
Reviewed-by: Suraj Kandpal <[email protected]>
---
 drivers/gpu/drm/i915/display/intel_dp.c     | 27 +++++++++++----------
 drivers/gpu/drm/i915/display/intel_dp.h     |  4 +--
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 11 +++++----
 3 files changed, 22 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c 
b/drivers/gpu/drm/i915/display/intel_dp.c
index 71f33470f7a8..942431a470c3 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -859,14 +859,14 @@ u32 intel_dp_dsc_nearest_valid_bpp(struct 
drm_i915_private *i915, u32 bpp, u32 p
 static
 u32 get_max_compressed_bpp_with_joiner(struct drm_i915_private *i915,
                                       u32 mode_clock, u32 mode_hdisplay,
-                                      bool bigjoiner)
+                                      enum intel_joiner_pipe_count 
joined_pipes)
 {
        u32 max_bpp_small_joiner_ram;
 
        /* Small Joiner Check: output bpp <= joiner RAM (bits) / Horiz. width */
        max_bpp_small_joiner_ram = small_joiner_ram_size_bits(i915) / 
mode_hdisplay;
 
-       if (bigjoiner) {
+       if (joined_pipes == INTEL_BIG_JOINER_PIPES) {
                int bigjoiner_interface_bits = DISPLAY_VER(i915) >= 14 ? 36 : 
24;
                /* With bigjoiner multiple dsc engines are used in parallel so 
PPC is 2 */
                int ppc = 2;
@@ -885,7 +885,7 @@ u32 get_max_compressed_bpp_with_joiner(struct 
drm_i915_private *i915,
 u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
                                        u32 link_clock, u32 lane_count,
                                        u32 mode_clock, u32 mode_hdisplay,
-                                       bool bigjoiner,
+                                       enum intel_joiner_pipe_count 
joined_pipes,
                                        enum intel_output_format output_format,
                                        u32 pipe_bpp,
                                        u32 timeslots)
@@ -931,7 +931,7 @@ u16 intel_dp_dsc_get_max_compressed_bpp(struct 
drm_i915_private *i915,
                                intel_dp_mode_to_fec_clock(mode_clock));
 
        joiner_max_bpp = get_max_compressed_bpp_with_joiner(i915, mode_clock,
-                                                           mode_hdisplay, 
bigjoiner);
+                                                           mode_hdisplay, 
joined_pipes);
        bits_per_pixel = min(bits_per_pixel, joiner_max_bpp);
 
        bits_per_pixel = intel_dp_dsc_nearest_valid_bpp(i915, bits_per_pixel, 
pipe_bpp);
@@ -941,7 +941,7 @@ u16 intel_dp_dsc_get_max_compressed_bpp(struct 
drm_i915_private *i915,
 
 u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
                                int mode_clock, int mode_hdisplay,
-                               bool bigjoiner)
+                               enum intel_joiner_pipe_count joined_pipes)
 {
        struct drm_i915_private *i915 = to_i915(connector->base.dev);
        u8 min_slice_count, i;
@@ -975,14 +975,14 @@ u8 intel_dp_dsc_get_slice_count(const struct 
intel_connector *connector,
 
        /* Find the closest match to the valid slice count values */
        for (i = 0; i < ARRAY_SIZE(valid_dsc_slicecount); i++) {
-               u8 test_slice_count = valid_dsc_slicecount[i] << bigjoiner;
+               u8 test_slice_count = valid_dsc_slicecount[i] << (joined_pipes 
/ 2);
 
                if (test_slice_count >
                    drm_dp_dsc_sink_max_slice_count(connector->dp.dsc_dpcd, 
false))
                        break;
 
                /* big joiner needs small joiner to be enabled */
-               if (bigjoiner && test_slice_count < 4)
+               if (joined_pipes == INTEL_BIG_JOINER_PIPES && test_slice_count 
< 4)
                        continue;
 
                if (min_slice_count <= test_slice_count)
@@ -1308,7 +1308,7 @@ intel_dp_mode_valid(struct drm_connector *_connector,
        u16 dsc_max_compressed_bpp = 0;
        u8 dsc_slice_count = 0;
        enum drm_mode_status status;
-       bool dsc = false, joiner = false;
+       bool dsc = false;
        enum intel_joiner_pipe_count joined_pipes = INTEL_NONE_JOINER_PIPES;
 
        status = intel_cpu_transcoder_mode_valid(dev_priv, mode);
@@ -1332,7 +1332,6 @@ intel_dp_mode_valid(struct drm_connector *_connector,
 
        if (intel_dp_need_joiner(intel_dp, connector,
                                 mode->hdisplay, target_clock)) {
-               joiner = true;
                joined_pipes = INTEL_BIG_JOINER_PIPES;
                max_dotclk *= INTEL_BIG_JOINER_PIPES;
        }
@@ -1379,14 +1378,14 @@ intel_dp_mode_valid(struct drm_connector *_connector,
                                                                    max_lanes,
                                                                    
target_clock,
                                                                    
mode->hdisplay,
-                                                                   joiner,
+                                                                   
joined_pipes,
                                                                    
output_format,
                                                                    pipe_bpp, 
64);
                        dsc_slice_count =
                                intel_dp_dsc_get_slice_count(connector,
                                                             target_clock,
                                                             mode->hdisplay,
-                                                            joiner);
+                                                            joined_pipes);
                }
 
                dsc = dsc_max_compressed_bpp && dsc_slice_count;
@@ -2102,6 +2101,7 @@ static int dsc_compute_compressed_bpp(struct intel_dp 
*intel_dp,
        int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
        int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp;
        int dsc_joiner_max_bpp;
+       int joined_pipes = intel_joiner_num_pipes(pipe_config);
 
        dsc_src_min_bpp = dsc_src_min_compressed_bpp();
        dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(pipe_config);
@@ -2116,7 +2116,7 @@ static int dsc_compute_compressed_bpp(struct intel_dp 
*intel_dp,
 
        dsc_joiner_max_bpp = get_max_compressed_bpp_with_joiner(i915, 
adjusted_mode->clock,
                                                                
adjusted_mode->hdisplay,
-                                                               
pipe_config->joiner_pipes);
+                                                               joined_pipes);
        dsc_max_bpp = min(dsc_max_bpp, dsc_joiner_max_bpp);
        dsc_max_bpp = min(dsc_max_bpp, fxp_q4_to_int(limits->link.max_bpp_x16));
 
@@ -2301,6 +2301,7 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
                to_intel_connector(conn_state->connector);
        const struct drm_display_mode *adjusted_mode =
                &pipe_config->hw.adjusted_mode;
+       int joined_pipes = intel_joiner_num_pipes(pipe_config);
        int ret;
 
        pipe_config->fec_enable = pipe_config->fec_enable ||
@@ -2350,7 +2351,7 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
                        intel_dp_dsc_get_slice_count(connector,
                                                     adjusted_mode->crtc_clock,
                                                     
adjusted_mode->crtc_hdisplay,
-                                                    pipe_config->joiner_pipes);
+                                                    joined_pipes);
                if (!dsc_dp_slice_count) {
                        drm_dbg_kms(&dev_priv->drm,
                                    "Compressed Slice Count not supported\n");
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h 
b/drivers/gpu/drm/i915/display/intel_dp.h
index 0a14db9bb20f..f284058f5148 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -144,7 +144,7 @@ int intel_dp_dsc_compute_max_bpp(const struct 
intel_connector *connector,
 u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
                                        u32 link_clock, u32 lane_count,
                                        u32 mode_clock, u32 mode_hdisplay,
-                                       bool bigjoiner,
+                                       enum intel_joiner_pipe_count 
joined_pipes,
                                        enum intel_output_format output_format,
                                        u32 pipe_bpp,
                                        u32 timeslots);
@@ -154,7 +154,7 @@ int intel_dp_dsc_sink_max_compressed_bpp(const struct 
intel_connector *connector
                                         int bpc);
 u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
                                int mode_clock, int mode_hdisplay,
-                               bool bigjoiner);
+                               enum intel_joiner_pipe_count joined_pipes);
 bool intel_dp_need_joiner(struct intel_dp *intel_dp,
                          struct intel_connector *connector,
                          int hdisplay, int clock);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c 
b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 9aae14a2ed15..ef524935b136 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -102,11 +102,13 @@ static int intel_dp_mst_bw_overhead(const struct 
intel_crtc_state *crtc_state,
        flags |= crtc_state->fec_enable ? DRM_DP_BW_OVERHEAD_FEC : 0;
 
        if (dsc) {
+               int joined_pipes = intel_joiner_num_pipes(crtc_state);
+
                flags |= DRM_DP_BW_OVERHEAD_DSC;
                dsc_slice_count = intel_dp_dsc_get_slice_count(connector,
                                                               
adjusted_mode->clock,
                                                               
adjusted_mode->hdisplay,
-                                                              
crtc_state->joiner_pipes);
+                                                              joined_pipes);
        }
 
        overhead = drm_dp_bw_overhead(crtc_state->lane_count,
@@ -1427,7 +1429,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector 
*connector,
        int max_dotclk = to_i915(connector->dev)->display.cdclk.max_dotclk_freq;
        int max_rate, mode_rate, max_lanes, max_link_clock;
        int ret;
-       bool dsc = false, joiner = false;
+       bool dsc = false;
        u16 dsc_max_compressed_bpp = 0;
        u8 dsc_slice_count = 0;
        int target_clock = mode->clock;
@@ -1473,7 +1475,6 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector 
*connector,
         */
        if (intel_dp_need_joiner(intel_dp, intel_connector,
                                 mode->hdisplay, target_clock)) {
-               joiner = true;
                joined_pipes = INTEL_BIG_JOINER_PIPES;
                max_dotclk *= INTEL_BIG_JOINER_PIPES;
        }
@@ -1502,14 +1503,14 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector 
*connector,
                                                                    max_lanes,
                                                                    
target_clock,
                                                                    
mode->hdisplay,
-                                                                   joiner,
+                                                                   
joined_pipes,
                                                                    
INTEL_OUTPUT_FORMAT_RGB,
                                                                    pipe_bpp, 
64);
                        dsc_slice_count =
                                intel_dp_dsc_get_slice_count(intel_connector,
                                                             target_clock,
                                                             mode->hdisplay,
-                                                            joiner);
+                                                            joined_pipes);
                }
 
                dsc = dsc_max_compressed_bpp && dsc_slice_count;
-- 
2.45.2

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