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.
v2: Add argument intel_connector to the helper to get correct connector
for DP MST. (Imre)
v3: Remove redundant calls to intel_dp_dsc_sink_max_compressed_bpp as
its already accounted while setting link bpp limits.
Signed-off-by: Ankit Nautiyal <ankit.k.nauti...@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kand...@intel.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 58 +++++++++++--------------
1 file changed, 26 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c
b/drivers/gpu/drm/i915/display/intel_dp.c
index f694895d223e..0d74adae2ec9 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2157,27 +2157,17 @@ static int dsc_compute_compressed_bpp(struct intel_dp
*intel_dp,
{
struct intel_display *display = to_intel_display(intel_dp);
const struct drm_display_mode *adjusted_mode =
&pipe_config->hw.adjusted_mode;
- 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_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_min_bpp = fxp_q4_to_int_roundup(limits->link.min_bpp_x16);
dsc_joiner_max_bpp = get_max_compressed_bpp_with_joiner(display,
adjusted_mode->clock,
adjusted_mode->hdisplay,
num_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));
+ dsc_max_bpp = min(dsc_joiner_max_bpp,
fxp_q4_to_int(limits->link.max_bpp_x16));
if (DISPLAY_VER(display) >= 13)
return xelpd_dsc_compute_link_config(intel_dp, connector,
pipe_config, limits,
@@ -2284,8 +2274,8 @@ 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);
@@ -2305,17 +2295,9 @@ 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_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));
+ dsc_max_bpp = fxp_q4_to_int(limits->link.max_bpp_x16);
/* Compressed BPP should be less than the Input DSC bpp */
dsc_max_bpp = min(dsc_max_bpp, pipe_bpp - 1);
@@ -2456,6 +2438,7 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
*/
static bool
intel_dp_compute_config_link_bpp_limits(struct intel_dp *intel_dp,
+ const struct intel_connector *connector,
const struct intel_crtc_state
*crtc_state,
bool dsc,
struct link_config_limits *limits)
@@ -2478,12 +2461,22 @@ 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;
@@ -2572,6 +2565,7 @@ intel_dp_compute_config_limits(struct intel_dp *intel_dp,
intel_dp_test_compute_config(intel_dp, crtc_state, limits);
return intel_dp_compute_config_link_bpp_limits(intel_dp,
+
intel_dp->attached_connector,
crtc_state,
dsc,
limits);
--
2.45.2
