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drm/i915/display: Use joined pipes in intel_dp_joiner_needs_dsc

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In preparation of ultrajoiner, use number of joined pipes in the
intel_dp_joiner_needs_dsc helper, instead of joiner flag.

v2: Use intel_crtc_num_joined_pipes. (Ville)

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240916102836.2149012-3-ankit.k.nautiyal@intel.com
This commit is contained in:
Ankit Nautiyal
2024-09-16 15:58:34 +05:30
parent eb920fbbb4
commit d095681373
5 changed files with 24 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/display/intel_display.c
View File

@@ -278,7 +278,7 @@ bool intel_crtc_is_joiner_primary(const struct intel_crtc_state *crtc_state)
crtc->pipe == joiner_primary_pipe(crtc_state);
}
static int intel_crtc_num_joined_pipes(const struct intel_crtc_state *crtc_state)
int intel_crtc_num_joined_pipes(const struct intel_crtc_state *crtc_state)
{
return hweight8(intel_crtc_joined_pipe_mask(crtc_state));
}

1
drivers/gpu/drm/i915/display/intel_display.h
View File

@@ -574,5 +574,6 @@ bool assert_port_valid(struct drm_i915_private *i915, enum port port);
})
bool intel_scanout_needs_vtd_wa(struct drm_i915_private *i915);
int intel_crtc_num_joined_pipes(const struct intel_crtc_state *crtc_state);
#endif

16
drivers/gpu/drm/i915/display/intel_dp.c
View File

@@ -1318,6 +1318,7 @@ intel_dp_mode_valid(struct drm_connector *_connector,
u8 dsc_slice_count = 0;
enum drm_mode_status status;
bool dsc = false, joiner = false;
int num_joined_pipes;
status = intel_cpu_transcoder_mode_valid(dev_priv, mode);
if (status != MODE_OK)
@@ -1343,6 +1344,9 @@ intel_dp_mode_valid(struct drm_connector *_connector,
joiner = true;
max_dotclk *= 2;
}
num_joined_pipes = joiner ? 2 : 1;
if (target_clock > max_dotclk)
return MODE_CLOCK_HIGH;
@@ -1399,7 +1403,7 @@ intel_dp_mode_valid(struct drm_connector *_connector,
dsc = dsc_max_compressed_bpp && dsc_slice_count;
}
if (intel_dp_joiner_needs_dsc(dev_priv, joiner) && !dsc)
if (intel_dp_joiner_needs_dsc(dev_priv, num_joined_pipes) && !dsc)
return MODE_CLOCK_HIGH;
if (mode_rate > max_rate && !dsc)
@@ -2513,14 +2517,15 @@ int intel_dp_config_required_rate(const struct intel_crtc_state *crtc_state)
return intel_dp_link_required(adjusted_mode->crtc_clock, bpp);
}
bool intel_dp_joiner_needs_dsc(struct drm_i915_private *i915, bool use_joiner)
bool intel_dp_joiner_needs_dsc(struct drm_i915_private *i915,
int num_joined_pipes)
{
/*
* Pipe joiner needs compression up to display 12 due to bandwidth
* limitation. DG2 onwards pipe joiner can be enabled without
* compression.
*/
return !HAS_UNCOMPRESSED_JOINER(i915) && use_joiner;
return !HAS_UNCOMPRESSED_JOINER(i915) && num_joined_pipes == 2;
}
static int
@@ -2538,6 +2543,7 @@ intel_dp_compute_link_config(struct intel_encoder *encoder,
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
struct link_config_limits limits;
bool dsc_needed, joiner_needs_dsc;
int num_joined_pipes;
int ret = 0;
if (pipe_config->fec_enable &&
@@ -2549,7 +2555,9 @@ intel_dp_compute_link_config(struct intel_encoder *encoder,
adjusted_mode->crtc_clock))
pipe_config->joiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe);
joiner_needs_dsc = intel_dp_joiner_needs_dsc(i915, pipe_config->joiner_pipes);
num_joined_pipes = intel_crtc_num_joined_pipes(pipe_config);
joiner_needs_dsc = intel_dp_joiner_needs_dsc(i915, num_joined_pipes);
dsc_needed = joiner_needs_dsc || intel_dp->force_dsc_en ||
!intel_dp_compute_config_limits(intel_dp, pipe_config,

3
drivers/gpu/drm/i915/display/intel_dp.h
View File

@@ -123,7 +123,8 @@ int intel_dp_effective_data_rate(int pixel_clock, int bpp_x16,
int bw_overhead);
int intel_dp_max_link_data_rate(struct intel_dp *intel_dp,
int max_dprx_rate, int max_dprx_lanes);
bool intel_dp_joiner_needs_dsc(struct drm_i915_private *i915, bool use_joiner);
bool intel_dp_joiner_needs_dsc(struct drm_i915_private *i915,
int num_joined_pipes);
bool intel_dp_has_joiner(struct intel_dp *intel_dp);
bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state);

10
drivers/gpu/drm/i915/display/intel_dp_mst.c
View File

@@ -568,6 +568,7 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
&pipe_config->hw.adjusted_mode;
struct link_config_limits limits;
bool dsc_needed, joiner_needs_dsc;
int num_joined_pipes;
int ret = 0;
if (pipe_config->fec_enable &&
@@ -582,11 +583,13 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
adjusted_mode->crtc_clock))
pipe_config->joiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe);
num_joined_pipes = intel_crtc_num_joined_pipes(pipe_config);
pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB;
pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
pipe_config->has_pch_encoder = false;
joiner_needs_dsc = intel_dp_joiner_needs_dsc(dev_priv, pipe_config->joiner_pipes);
joiner_needs_dsc = intel_dp_joiner_needs_dsc(dev_priv, num_joined_pipes);
dsc_needed = joiner_needs_dsc || intel_dp->force_dsc_en ||
!intel_dp_mst_compute_config_limits(intel_dp,
@@ -1426,6 +1429,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
u16 dsc_max_compressed_bpp = 0;
u8 dsc_slice_count = 0;
int target_clock = mode->clock;
int num_joined_pipes;
if (drm_connector_is_unregistered(connector)) {
*status = MODE_ERROR;
@@ -1471,6 +1475,8 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
max_dotclk *= 2;
}
num_joined_pipes = joiner ? 2 : 1;
ret = drm_modeset_lock(&mgr->base.lock, ctx);
if (ret)
return ret;
@@ -1508,7 +1514,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
dsc = dsc_max_compressed_bpp && dsc_slice_count;
}
if (intel_dp_joiner_needs_dsc(dev_priv, joiner) && !dsc) {
if (intel_dp_joiner_needs_dsc(dev_priv, num_joined_pipes) && !dsc) {
*status = MODE_CLOCK_HIGH;
return 0;
}