[02/14] drm/i915/display: Use joined pipes in intel_dp_joiner_needs_dsc

Message ID	20240906125807.3960642-3-ankit.k.nautiyal@intel.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <intel-gfx-bounces@lists.freedesktop.org> From: Ankit Nautiyal <ankit.k.nautiyal@intel.com> To: intel-gfx@lists.freedesktop.org Cc: jani.saarinen@intel.com, ville.syrjala@linux.intel.com Subject: [PATCH 02/14] drm/i915/display: Use joined pipes in intel_dp_joiner_needs_dsc Date: Fri, 6 Sep 2024 18:27:55 +0530 Message-ID: <20240906125807.3960642-3-ankit.k.nautiyal@intel.com> In-Reply-To: <20240906125807.3960642-1-ankit.k.nautiyal@intel.com> References: <20240906125807.3960642-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: list Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
Series	Ultrajoiner basic functionality series \| expand [00/14] Ultrajoiner basic functionality series [01/14] drm/i915/display: Modify debugfs for joiner to force n pipes [02/14] drm/i915/display: Use joined pipes in intel_dp_joiner_needs_dsc [03/14] drm/i915/display: Use joined pipes in intel_mode_valid_max_plane_size [04/14] drm/i915/display: Use joined pipes in dsc helpers for slices, bpp [05/14] drm/i915: Add some essential functionality for joiners [06/14] drm/i915: Split current joiner hw state readout [07/14] drm/i915: Add bigjoiner and uncompressed joiner hw readout sanity checks [08/14] drm/i915: Implement hw state readout and checks for ultrajoiner [09/14] drm/i915/display: Add helpers to check for ultrajoiner primary [10/14] drm/i915/display/vdsc: Add ultrajoiner support with DSC [11/14] drm/i915: Add new abstraction layer to handle pipe order for different joiners [12/14] drm/i915: Compute config and mode valid changes for ultrajoiner [13/14] drm/i915/display: Consider ultrajoiner for computing maxdotclock [14/14] drm/i915/intel_dp: Add support for forcing ultrajoiner

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index b4ec9bf12aa7..82492ee6c2e6 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -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_joiner_num_pipes(const struct intel_crtc_state *crtc_state) +int intel_joiner_num_pipes(const struct intel_crtc_state *crtc_state) { return hweight8(crtc_state->joiner_pipes); } diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h index b21d9578d5db..3b90c5190d65 100644 --- a/drivers/gpu/drm/i915/display/intel_display.h +++ b/drivers/gpu/drm/i915/display/intel_display.h @@ -587,4 +587,6 @@ 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_joiner_num_pipes(const struct intel_crtc_state *crtc_state); + #endif diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 862a460c32b7..f95b62a026b6 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1309,6 +1309,7 @@ intel_dp_mode_valid(struct drm_connector *_connector, u8 dsc_slice_count = 0; enum drm_mode_status status; bool dsc = false, joiner = false; + enum intel_joiner_pipe_count joined_pipes = INTEL_NONE_JOINER_PIPES; status = intel_cpu_transcoder_mode_valid(dev_priv, mode); if (status != MODE_OK) @@ -1332,7 +1333,8 @@ intel_dp_mode_valid(struct drm_connector *_connector, if (intel_dp_need_joiner(intel_dp, connector, mode->hdisplay, target_clock)) { joiner = true; - max_dotclk *= 2; + joined_pipes = INTEL_BIG_JOINER_PIPES; + max_dotclk *= INTEL_BIG_JOINER_PIPES; } if (target_clock > max_dotclk) return MODE_CLOCK_HIGH; @@ -1390,7 +1392,7 @@ 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, joined_pipes) && !dsc) return MODE_CLOCK_HIGH; if (mode_rate > max_rate && !dsc) @@ -2498,14 +2500,15 @@ 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, + enum intel_joiner_pipe_count joined_pipes) { /* * Pipe joiner needs compression up to display 12 due to bandwidth * limitation. DG2 onwards pipe joiner can be enabled without * compression. */ - return DISPLAY_VER(i915) < 13 && use_joiner; + return DISPLAY_VER(i915) < 13 && (joined_pipes == INTEL_BIG_JOINER_PIPES); } static int @@ -2523,6 +2526,7 @@ 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; + enum intel_joiner_pipe_count joined_pipes; int ret = 0; if (pipe_config->fec_enable && @@ -2534,7 +2538,11 @@ 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); + joined_pipes = intel_joiner_num_pipes(pipe_config); + if (joined_pipes >= INTEL_INVALID_JOINER_PIPES) + drm_warn(&i915->drm, "Invalid joined pipes : %d\n", joined_pipes); + + joiner_needs_dsc = intel_dp_joiner_needs_dsc(i915, joined_pipes); dsc_needed = joiner_needs_dsc || intel_dp->force_dsc_en || !intel_dp_compute_config_limits(intel_dp, pipe_config, diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h index 1b9aaddd8c35..0a14db9bb20f 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -8,6 +8,7 @@ #include <linux/types.h> +enum intel_joiner_pipe_count; enum intel_output_format; enum pipe; enum port; @@ -123,7 +124,8 @@ 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, + enum intel_joiner_pipe_count 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); diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 15541932b809..d3ff22f53fd5 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -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; + enum intel_joiner_pipe_count joined_pipes; int ret = 0; if (pipe_config->fec_enable && @@ -586,7 +587,11 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder, 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); + joined_pipes = intel_joiner_num_pipes(pipe_config); + if (joined_pipes >= INTEL_INVALID_JOINER_PIPES) + drm_warn(&dev_priv->drm, "Invalid joined pipes : %d\n", joined_pipes); + + joiner_needs_dsc = intel_dp_joiner_needs_dsc(dev_priv, joined_pipes); dsc_needed = joiner_needs_dsc || intel_dp->force_dsc_en || !intel_dp_mst_compute_config_limits(intel_dp, @@ -1426,6 +1431,7 @@ 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; + enum intel_joiner_pipe_count joined_pipes = INTEL_NONE_JOINER_PIPES; if (drm_connector_is_unregistered(connector)) { *status = MODE_ERROR; @@ -1468,7 +1474,8 @@ 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; - max_dotclk *= 2; + joined_pipes = INTEL_BIG_JOINER_PIPES; + max_dotclk *= INTEL_BIG_JOINER_PIPES; } ret = drm_modeset_lock(&mgr->base.lock, ctx); @@ -1508,7 +1515,7 @@ 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, joined_pipes) && !dsc) { *status = MODE_CLOCK_HIGH; return 0; }

[02/14] drm/i915/display: Use joined pipes in intel_dp_joiner_needs_dsc

Commit Message

Patch