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.
v2: Adjust the formulae to use num of pipes as 1 (no joiner) or 2
(bigjoiner). (Ankit)
Signed-off-by: Ankit Nautiyal <ankit.k.nauti...@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kand...@intel.com> (v1)
Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 24 +++++++++++----------
drivers/gpu/drm/i915/display/intel_dp.h | 4 ++--
drivers/gpu/drm/i915/display/intel_dp_mst.c | 8 ++++---
3 files changed, 20 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c
b/drivers/gpu/drm/i915/display/intel_dp.c
index 3157cfbe5555..944c388793be 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -868,14 +868,14 @@ 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)
+ int num_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 (num_joined_pipes == 2) {
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;
@@ -894,7 +894,7 @@ 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,
+ int num_joined_pipes,
enum intel_output_format output_format,
u32 pipe_bpp,
u32 timeslots)
@@ -940,7 +940,7 @@ 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,
num_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);
@@ -950,7 +950,7 @@ 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)
+ int num_joined_pipes)
{
struct drm_i915_private *i915 = to_i915(connector->base.dev);
u8 min_slice_count, i;
@@ -984,14 +984,14 @@ 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] *
num_joined_pipes;
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 (num_joined_pipes == 2 && test_slice_count < 4)
continue;
if (min_slice_count <= test_slice_count)
@@ -1390,14 +1390,14 @@ intel_dp_mode_valid(struct drm_connector *_connector,
max_lanes,
target_clock,
mode->hdisplay,
- joiner,
+
num_joined_pipes,
output_format,
pipe_bpp,
64);
dsc_slice_count =
intel_dp_dsc_get_slice_count(connector,
target_clock,
mode->hdisplay,
- joiner);
+ num_joined_pipes);
}
dsc = dsc_max_compressed_bpp && dsc_slice_count;
@@ -2113,6 +2113,7 @@ 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 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);
@@ -2127,7 +2128,7 @@ 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);
+
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));
@@ -2312,6 +2313,7 @@ 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 num_joined_pipes = intel_crtc_num_joined_pipes(pipe_config);
int ret;
/*
@@ -2367,7 +2369,7 @@ 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);
+ num_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 3aef57dd463a..a0a31fb64716 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -143,7 +143,7 @@ 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,
+ int num_joined_pipes,
enum intel_output_format output_format,
u32 pipe_bpp,
u32 timeslots);
@@ -153,7 +153,7 @@ 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);
+ int num_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 1b94dfe9499a..dc050da29815 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 num_joined_pipes = intel_crtc_num_joined_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);
+
num_joined_pipes);
}
overhead = drm_dp_bw_overhead(crtc_state->lane_count,
@@ -1501,14 +1503,14 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector
*connector,
max_lanes,
target_clock,
mode->hdisplay,
- joiner,
+
num_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);
+ num_joined_pipes);
}
dsc = dsc_max_compressed_bpp && dsc_slice_count;
--
2.45.2
