@@ -1958,7 +1958,7 @@ static int dsc_compute_link_config(struct intel_dp *intel_dp,
static
u16 intel_dp_dsc_max_sink_compressed_bppx16(const struct intel_connector *connector,
- struct intel_crtc_state *pipe_config,
+ const struct intel_crtc_state *pipe_config,
int bpc)
{
u16 max_bppx16 = drm_edp_dsc_sink_output_bpp(connector->dp.dsc_dpcd);
@@ -1983,7 +1983,7 @@ u16 intel_dp_dsc_max_sink_compressed_bppx16(const struct intel_connector *connec
return 0;
}
-int intel_dp_dsc_sink_min_compressed_bpp(struct intel_crtc_state *pipe_config)
+int intel_dp_dsc_sink_min_compressed_bpp(const struct intel_crtc_state *pipe_config)
{
/* From Mandatory bit rate range Support Table 2-157 (DP v2.0) */
switch (pipe_config->output_format) {
@@ -2001,7 +2001,7 @@ int intel_dp_dsc_sink_min_compressed_bpp(struct intel_crtc_state *pipe_config)
}
int intel_dp_dsc_sink_max_compressed_bpp(const struct intel_connector *connector,
- struct intel_crtc_state *pipe_config,
+ const struct intel_crtc_state *pipe_config,
int bpc)
{
return intel_dp_dsc_max_sink_compressed_bppx16(connector,
@@ -2130,21 +2130,16 @@ static int dsc_compute_compressed_bpp(struct intel_dp *intel_dp,
{
const struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode;
struct drm_i915_private *i915 = dp_to_i915(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_min_bpp;
+ int dsc_max_bpp;
int dsc_joiner_max_bpp;
int num_joined_pipes = intel_crtc_num_joined_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);
- dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp);
- dsc_min_bpp = max(dsc_min_bpp, fxp_q4_to_int_roundup(limits->link.min_bpp_x16));
+ dsc_min_bpp = fxp_q4_to_int_roundup(limits->link.min_bpp_x16);
- dsc_src_max_bpp = dsc_src_max_compressed_bpp(intel_dp);
- dsc_sink_max_bpp = intel_dp_dsc_sink_max_compressed_bpp(connector,
- pipe_config,
- pipe_bpp / 3);
- dsc_max_bpp = dsc_sink_max_bpp ? min(dsc_sink_max_bpp, dsc_src_max_bpp) : dsc_src_max_bpp;
+ dsc_max_bpp = intel_dp_dsc_sink_max_compressed_bpp(connector,
+ pipe_config,
+ pipe_bpp / 3);
dsc_joiner_max_bpp = get_max_compressed_bpp_with_joiner(i915, adjusted_mode->clock,
adjusted_mode->hdisplay,
@@ -2255,8 +2250,8 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
struct intel_connector *connector =
to_intel_connector(conn_state->connector);
int pipe_bpp, forced_bpp;
- 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_min_bpp;
+ int dsc_max_bpp;
forced_bpp = intel_dp_force_dsc_pipe_bpp(intel_dp, limits);
@@ -2276,16 +2271,12 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
pipe_config->port_clock = limits->max_rate;
pipe_config->lane_count = limits->max_lane_count;
- dsc_src_min_bpp = dsc_src_min_compressed_bpp();
- dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(pipe_config);
- dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp);
- dsc_min_bpp = max(dsc_min_bpp, fxp_q4_to_int_roundup(limits->link.min_bpp_x16));
+ dsc_min_bpp = fxp_q4_to_int_roundup(limits->link.min_bpp_x16);
+
+ dsc_max_bpp = intel_dp_dsc_sink_max_compressed_bpp(connector,
+ pipe_config,
+ pipe_bpp / 3);
- dsc_src_max_bpp = dsc_src_max_compressed_bpp(intel_dp);
- dsc_sink_max_bpp = intel_dp_dsc_sink_max_compressed_bpp(connector,
- pipe_config,
- pipe_bpp / 3);
- dsc_max_bpp = dsc_sink_max_bpp ? min(dsc_sink_max_bpp, dsc_src_max_bpp) : dsc_src_max_bpp;
dsc_max_bpp = min(dsc_max_bpp, fxp_q4_to_int(limits->link.max_bpp_x16));
/* Compressed BPP should be less than the Input DSC bpp */
@@ -2428,6 +2419,7 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
&crtc_state->hw.adjusted_mode;
const struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
const struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base;
+ struct intel_connector *connector = intel_dp->attached_connector;
int max_link_bpp_x16;
max_link_bpp_x16 = min(crtc_state->max_link_bpp_x16,
@@ -2441,12 +2433,22 @@ intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
limits->link.min_bpp_x16 = fxp_q4_from_int(limits->pipe.min_bpp);
} else {
- /*
- * TODO: set the DSC link limits already here, atm these are
- * initialized only later in intel_edp_dsc_compute_pipe_bpp() /
- * intel_dp_dsc_compute_pipe_bpp()
- */
- limits->link.min_bpp_x16 = 0;
+ int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
+ int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp;
+
+ dsc_src_min_bpp = dsc_src_min_compressed_bpp();
+ dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(crtc_state);
+ dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp);
+ limits->link.min_bpp_x16 = fxp_q4_from_int(dsc_min_bpp);
+
+ dsc_src_max_bpp = dsc_src_max_compressed_bpp(intel_dp);
+ dsc_sink_max_bpp = intel_dp_dsc_sink_max_compressed_bpp(connector,
+ crtc_state,
+ limits->pipe.max_bpp / 3);
+ dsc_max_bpp = dsc_sink_max_bpp ?
+ min(dsc_sink_max_bpp, dsc_src_max_bpp) : dsc_src_max_bpp;
+
+ max_link_bpp_x16 = min(max_link_bpp_x16, fxp_q4_from_int(dsc_max_bpp));
}
limits->link.max_bpp_x16 = max_link_bpp_x16;
@@ -145,9 +145,9 @@ u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
enum intel_output_format output_format,
u32 pipe_bpp,
u32 timeslots);
-int intel_dp_dsc_sink_min_compressed_bpp(struct intel_crtc_state *pipe_config);
+int intel_dp_dsc_sink_min_compressed_bpp(const struct intel_crtc_state *pipe_config);
int intel_dp_dsc_sink_max_compressed_bpp(const struct intel_connector *connector,
- struct intel_crtc_state *pipe_config,
+ const struct intel_crtc_state *pipe_config,
int bpc);
u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
int mode_clock, int mode_hdisplay,
The helper intel_dp_compute_config_link_bpp_limits is the correct place to set the DSC link limits. Move the code to this function and remove the #TODO item. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> --- drivers/gpu/drm/i915/display/intel_dp.c | 64 +++++++++++++------------ drivers/gpu/drm/i915/display/intel_dp.h | 4 +- 2 files changed, 35 insertions(+), 33 deletions(-)